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Li D, Li R, Zhao Y, Wang K, Fan K, Guo W, Chen Q, Li Y. g-C 3N 4 as ballistic electron transport "Tunnel" in CsPbBr 3-based ternary photocatalyst for gas phase CO 2 reduction. J Colloid Interface Sci 2024; 666:66-75. [PMID: 38583211 DOI: 10.1016/j.jcis.2024.03.193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 03/26/2024] [Accepted: 03/28/2024] [Indexed: 04/09/2024]
Abstract
Perovskite CsPbBr3 quantum dot shows great potential in artificial photosynthesis, attributed to its outstanding optoelectronic properties. Nevertheless, its photocatalytic activity is hindered by insufficient catalytic active sites and severe charge recombination. In this work, a CsPbBr3@Ag-C3N4 ternary heterojunction photocatalyst is designed and synthesized for high-efficiency CO2 reduction. The CsPbBr3 quantum dots and Ag nanoparticles are chemically anchored on the surface of g-C3N4 sheets, forming an electron transfer tunnel from CsPbBr3 quantum dots to Ag nanoparticles via g-C3N4 sheets. The resulting CsPbBr3@Ag-C3N4 ternary photocatalyst, with spatial separation of photogenerated carriers, achieves a remarkable conversion rate of 19.49 μmol·g-1·h-1 with almost 100 % CO selectivity, a 3.13-fold enhancement in photocatalytic activity as compared to CsPbBr3 quantum dots. Density functional theory calculations reveal the rapid CO2 adsorption/activation and the decreased free energy (0.66 eV) of *COOH formation at the interface of Ag nanoparticles and g-C3N4 in contrast to the g-C3N4, leading to the excellent photocatalytic activity, while the thermodynamically favored CO desorption contributes to the high CO selectivity. This work presents an innovative strategy of constructing perovskite-based photocatalyst by modulating catalyst structure and offers profound insights for efficient CO2 conversion.
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Affiliation(s)
- Dong Li
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, Experimental Center of Advanced Materials, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, PR China
| | - Renyi Li
- Key Laboratory of Advanced Optoelectronic Quantum Architecture and Measurement (MOE), Frontiers Science Center for High Energy Material (MOE), State Key Laboratory of Explosion Science and Technology, School of Physics, Beijing Institute of Technology, Beijing 100081, PR China
| | - Yizhou Zhao
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, Experimental Center of Advanced Materials, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, PR China
| | - Kaixuan Wang
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, Experimental Center of Advanced Materials, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, PR China
| | - Ke Fan
- State Key Laboratory of Fine Chemicals, Institute of Artificial Photosynthesis, Institute for Energy Science and Technology, Dalian University of Technology, Dalian 116024, PR China
| | - Wei Guo
- Key Laboratory of Advanced Optoelectronic Quantum Architecture and Measurement (MOE), Frontiers Science Center for High Energy Material (MOE), State Key Laboratory of Explosion Science and Technology, School of Physics, Beijing Institute of Technology, Beijing 100081, PR China.
| | - Qi Chen
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, Experimental Center of Advanced Materials, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, PR China
| | - Yujing Li
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, Experimental Center of Advanced Materials, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, PR China.
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2
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Shi Y, Yang D, Hu C, Lyu L. Water self-purification via electron donation effect of emerging contaminants arousing oxygen activation over ordered carbon-enhanced CoFe quantum dots. Environ Sci Ecotechnol 2024; 20:100356. [PMID: 38192429 PMCID: PMC10772548 DOI: 10.1016/j.ese.2023.100356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Revised: 11/22/2023] [Accepted: 11/23/2023] [Indexed: 01/10/2024]
Abstract
The release of emerging contaminants (ECs) into aquatic environments poses a significant risk to global water security. Advanced oxidation processes (AOPs), while effective in removing ECs, are often resource and energy-intensive. Here, we introduce a novel catalyst, CoFe quantum dots embedded in graphene nanowires (CoFeQds@GN-Nws), synthesized through anaerobic polymerization. It uniquely features electron-rich and electron-poor micro-regions on its surface, enabling a self-purification mechanism in wastewater. This is achieved by harnessing the internal energy of wastewater, particularly the bonding energy of pollutants and dissolved oxygen (DO). It demonstrates exceptional efficiency in removing ECs at ambient temperature and pressure without the need for external oxidants, achieving a removal rate of nearly 100.0%. The catalyst's structure-activity relationship reveals that CoFe quantum dots facilitate an unbalanced electron distribution, forming these micro-regions. This leads to a continuous electron-donation effect, where pollutants are effectively cleaved or oxidized. Concurrently, DO is activated into superoxide anions (O2•-), synergistically aiding in pollutant removal. This approach reduces resource and energy demands typically associated with AOPs, marking a sustainable advancement in wastewater treatment technologies.
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Affiliation(s)
| | | | - Chun Hu
- Institute of Environ. Res. at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou, 510006, China
| | - Lai Lyu
- Institute of Environ. Res. at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou, 510006, China
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3
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Shao X, Dong Z, Zhang S, Qiao Y, Zhang H, Guo H. Quantum dots-based multiplexed immunosensors for accurate diagnosis of attention deficit hyperactivity disorder in childhood. J Pharm Biomed Anal 2024; 243:116096. [PMID: 38484638 DOI: 10.1016/j.jpba.2024.116096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 03/04/2024] [Accepted: 03/06/2024] [Indexed: 04/06/2024]
Abstract
Attention-deficit/hyperactivity disorder (ADHD) lacks objective diagnostic markers. In clinical settings, reliance on subjective judgments can often lead to missed or misdiagnoses. Some biomarkers have been reported to be associated with ADHD, but using one biomarker alone is not enough. To address this, we developed a fluorescent immunoassay platform based on quantum dots (QDs) to detect assay capable of detecting and quantifying multiple biomarkers simultaneously. Specifically, we were able to the simultaneously detect brain-derived neurotrophic factor, tumor necrosis factor-alpha, interleukin-6 and ferritin using different emission spectra QDs. The QD-based multiplexed immunoassay displayed a low detection of limit in the range of 0.021-0.068 pg/mL, and the assay showed satisfactory reproducibility and precision. We then quantified all four targets from ADHD patient's plasma samples, where it showed remarkable consistency with clinical test for ADHD diagnosis. This methodological comparison supports the diagnosis of ADHD using our assay.
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Affiliation(s)
- Xinyue Shao
- Zhumadian Second People's Hospital, Zhumadian, Henan 463000, China.
| | - Zhao Dong
- Zhumadian Second People's Hospital, Zhumadian, Henan 463000, China
| | - Shuai Zhang
- Zhumadian Second People's Hospital, Zhumadian, Henan 463000, China
| | - Yunyun Qiao
- Zhumadian Second People's Hospital, Zhumadian, Henan 463000, China
| | - Hongwei Zhang
- Zhumadian Second People's Hospital, Zhumadian, Henan 463000, China
| | - Hua Guo
- Zhumadian Second People's Hospital, Zhumadian, Henan 463000, China
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4
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Cai X, Wang B, Nian L, Cheng T, Zhang C, Li L, Zhang G, Xiao J. Simultaneous fingerprinting of multiplex collagen biomarkers in connective tissues by multicolor quantum dots-based peptide probes. Mater Today Bio 2024; 26:101026. [PMID: 38525311 PMCID: PMC10959700 DOI: 10.1016/j.mtbio.2024.101026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 03/01/2024] [Accepted: 03/13/2024] [Indexed: 03/26/2024] Open
Abstract
The accurate detection of multiplex collagen biomarkers is vital for diagnosing and treating various critical diseases such as tumors and fibrosis. Despite the attractive optical properties of quantum dots (QDs), it remains technically challenging to create stable and specific QDs-based probes for multiplex biological imaging. We report for the first time the construction of multi-color QDs-based peptide probes for the simultaneous fingerprinting of multiplex collagen biomarkers in connective tissues. A bipeptide system composed of a glutathione (GSH) host peptide and a collagen-targeting guest peptide (CTP) has been developed, yielding CTP-QDs probes that exhibit exceptional luminescence stability when exposed to ultraviolet irradiation and mildly acidic conditions. The versatile bipeptide system allows for facile one-pot synthesis of high-quality multicolor CTP-QDs probes, exhibiting superior selectivity in targeting critical collagen biomarkers including denatured collagen, type I collagen, type II collagen, and type IV collagen. The multicolor CTP-QDs probes have demonstrated remarkable efficacy in simultaneously fingerprinting multiple collagen types in diverse connective tissues, irrespective of their status, whether affected by injury, diseases, or undergoing remodeling processes. The innovative multicolor CTP-QDs probes offer a robust toolkit for the multiplex fingerprinting of the collagen suprafamily, demonstrating significant potential in the diagnosis and treatment of collagen-related diseases.
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Affiliation(s)
- Xiangdong Cai
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, PR China
- School of Life Sciences, Lanzhou University, Lanzhou, 730000, PR China
| | - Bo Wang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, PR China
| | - Linge Nian
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, PR China
| | - Tao Cheng
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, PR China
| | - Chunxia Zhang
- Tianjin Baogang Rare Earth Research Institute Co., Ltd, PR China
| | - Lu Li
- Tianjin Baogang Rare Earth Research Institute Co., Ltd, PR China
| | - Guangrui Zhang
- Tianjin Baogang Rare Earth Research Institute Co., Ltd, PR China
| | - Jianxi Xiao
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, PR China
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Li Y, Xu Y, Soko WC, Bi H. Quantum dots (QDs) attached magnetic beads (MBs) for on-chip efficient capture and detection of bacteria in ready-to-eat (RTE) foods. Talanta 2024; 273:125880. [PMID: 38484499 DOI: 10.1016/j.talanta.2024.125880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 02/19/2024] [Accepted: 03/04/2024] [Indexed: 04/09/2024]
Abstract
In this study, we established a versatile and simple magnetic-assisted microfluidic method for fast bacterial detection. Quantum dots (QDs) were loaded onto magnetic beads (MBs) to construct performance enhanced on-chip capture of bacteria. Escherichia coli (E. coli), as a model bacterium was studied. CdSe QDs were deposited onto the surface of Fe3O4 MBs through layer-by-layer self-assembly to enhance the loading of antibodies (Abs). MBs functionalized with anti-E. coli antibody molecules in a micropillar-based microfluidic chip were utilized to capture E. coli, and matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF MS) was used for characterization of captured bacteria. This method was found capable of specifically isolating E. coli within the range of 1.0 to 1.0 × 109 CFU/mL, having a detection limit (LOD) of 10 CFU/mL. The average similarity score among mass spectra for the bacterial capture obtained in independent experiments is calculated as 0.97 ± 0.01 (n = 3), which shows this work's excellent reproducibility for bacterial capture. Bacterial growth on ready-to-eat (RTE) foods during its time of storage was successfully monitored. The present protocol has promising potential for microbial control and pathogen detection in the food industry.
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Affiliation(s)
- Yunxing Li
- College of Food Science and Technology, Shanghai Ocean University (SHOU), Hucheng Ring Road 999, Pudong New District, 201306, Shanghai, China.
| | - Yihong Xu
- College of Food Science and Technology, Shanghai Ocean University (SHOU), Hucheng Ring Road 999, Pudong New District, 201306, Shanghai, China.
| | - Winnie C Soko
- College of Food Science and Technology, Shanghai Ocean University (SHOU), Hucheng Ring Road 999, Pudong New District, 201306, Shanghai, China.
| | - Hongyan Bi
- College of Food Science and Technology, Shanghai Ocean University (SHOU), Hucheng Ring Road 999, Pudong New District, 201306, Shanghai, China.
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Luan X, Hu H, Sun Z, He P, Zhu D, Xu Y, Liu B, Wei G. Assembling Ag 2S quantum dots onto peptide nanosheet as a biomimetic two-dimensional nanoplatform for synergistic near infrared-II fluorescent imaging and photothermal therapy of tumor. J Colloid Interface Sci 2024; 663:111-122. [PMID: 38394816 DOI: 10.1016/j.jcis.2024.02.163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 02/16/2024] [Accepted: 02/20/2024] [Indexed: 02/25/2024]
Abstract
Fluorescent bioimaging and photothermal therapy (PTT) techniques have potential significance in cancer diagnosis and treatment and have been widely applied in biomedical and practical clinical trials. This study proposes the molecular design and biofabrication of a two-dimensional (2D) nanoplatform, exhibiting promising prospects for synergistic bioimaging and PTT of tumors. First, biocompatible 2D peptide nanosheets (PNSs) were designed and prepared through peptide self-assembly. These served as a support matrix for assembling polyethylene glycol-modified Ag2S quantum dots (PEG-Ag2SQDs) to form a 2D nanoplatform (PNS/PEG-Ag2SQDs) with unique fluorescent and photothermal properties. The designed 2D nanoplatform not only showed improved photothermal efficacy and an elevated photothermal conversion efficiency of 52.46 %, but also demonstrated significant lethality against tumors in both in vitro and in vivo cases. Additionally, it displays excellent imaging effects in the near-infrared II region, making it suitable for synergistic fluorescent imaging-guided PTT of tumors. This study not only provides a facile approach for devising and synthesizing 2D peptide assemblies but also presents new biomimetic strategies to create functional 2D organic/inorganic nanoplatforms for biomedical applications.
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Affiliation(s)
- Xin Luan
- College of Chemistry & Chemical Engineering, Qingdao University, Qingdao 266071, China
| | - Huiqiang Hu
- The Affiliated Hospital of Qingdao University, Qingdao 266071, China
| | - Zhengang Sun
- Department of Spinal Surgery, Qingdao Huangdao Central Hospital, Qingdao University Medical Group, Qingdao 266555, China
| | - Peng He
- College of Chemistry & Chemical Engineering, Qingdao University, Qingdao 266071, China
| | - Danzhu Zhu
- College of Chemistry & Chemical Engineering, Qingdao University, Qingdao 266071, China
| | - Youyin Xu
- College of Chemistry & Chemical Engineering, Qingdao University, Qingdao 266071, China
| | - Bin Liu
- College of Chemistry & Chemical Engineering, Qingdao University, Qingdao 266071, China
| | - Gang Wei
- College of Chemistry & Chemical Engineering, Qingdao University, Qingdao 266071, China.
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7
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Deng B, Chen Q, Liu Y, Ullah Khan A, Zhang D, Jiang T, Wang X, Liu N, Li H, Mao B. Quasi-type-II Cu-In-Zn-S/Ni-MOF heterostructure with prolonged carrier lifetime for photocatalytic hydrogen production. J Colloid Interface Sci 2024; 662:1016-1025. [PMID: 38387363 DOI: 10.1016/j.jcis.2024.02.095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 02/02/2024] [Accepted: 02/11/2024] [Indexed: 02/24/2024]
Abstract
Visible-driven photocatalytic hydrogen production using narrow-bandgap semiconductors has great potential for clean energy development. However, the widespread use of these semiconductors is limited due to problems such as severe charge recombination and slow surface reactions. Herein, a quasi-type-II heterostructure was constructed by combining bifunctional Ni-based metal-organic framework (Ni-MOF) nanosheets with BDC (1,4-benzenedicarboxylic acid) linker coupled with Cu-In-Zn-S quantum dots (CIZS QDs). This heterostructure exhibited a prolonged charge carrier lifetime and abundant active sites, leading to significantly improved hydrogen production rate. The optimized rate achieved by the CIZS/Ni-MOF heterostructure was 2642 μmol g-1 h-1, which is 5.28 times higher than that of the CIZS QDs. This improved performance can be attributed to the quasi-type-II band alignment between the CIZS QDs and Ni-MOF, which facilitates effective delocalization of the photogenerated electrons within the system. Additional photoelectrochemical tests confirmed the well-maintained photoluminescence and prolonged charge carrier lifetime of the CIZS/Ni-MOF heterostructure. This study provides valuable insights into the use of multifunctional MOFs in the development of highly efficient composite photocatalysts, extending beyond their role in light harvesting and charge separation.
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Affiliation(s)
- Bangya Deng
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Qitao Chen
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Yanhong Liu
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China.
| | - Afaq Ullah Khan
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Dongxu Zhang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Tianyao Jiang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Xianjin Wang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Naiyun Liu
- Institute of Energy Research, Jiangsu University, Zhenjiang, Jiangsu 212013, PR China.
| | - Haitao Li
- Institute of Energy Research, Jiangsu University, Zhenjiang, Jiangsu 212013, PR China.
| | - Baodong Mao
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China.
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Jin P, Wan P, Zhang C, Li X, Wang Y, Luo J, Li K. Analyte-perturbed balance between reducibility and fluorescence of Ti 3C 2 MXene quantum dots for label-free, dual-mode detection of silver ions. Anal Chim Acta 2024; 1303:342517. [PMID: 38609276 DOI: 10.1016/j.aca.2024.342517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 02/05/2024] [Accepted: 03/21/2024] [Indexed: 04/14/2024]
Abstract
BACKGROUND As an emerging and attractive low-dimensional functional materials, Ti3C2 MXene quantum dots (QDs) enlarge the toolbox of fluorescence sensing. However, monochromatic fluorescence, which only provide one single signal, is often beset by challenges such as false-positive readouts and limitations in selectivity. Consequently, to improve the sensing accuracy by means of cross-verified dual-signal authentication, the endeavor to engineer dual-mode nanoprobes based on Ti3C2 QDs, incorporating both the capability of fluorescence and an alternative sensing mechanism, emerges as a compelling avenue. RESULTS Here, based on the alterations in colorimetric and fluorescent signals of Ti3C2 QDs with the addition of Ag+, we propose a dual-mode sensor obviating the necessity for nanoprobe labeling. Owing to the decent reducibility of Ti3C2 QDs, Ag+ is adsorbed and reduced, resulting in the generation of plasmonic Ag nanoparticles (NPs), which simultaneously trigger colorimetric responses of the solution and enhance the fluorescent emission of Ti3C2 QDs. The confluence of colorimetry and fluorometry within this strategy optimally harnesses the modulating role of the acquired Ag NPs on the reducing capability and fluorescence characteristics of Ti3C2 QDs. The equilibrium imparts versatility and promising prospects to this analyte-triggered label-free method, which enables a remarkable specificity and an excellent detecting limit (0.45 μM) for Ag+. SIGNIFICANCE The balance between reducibility and fluorescence of Ti3C2 QDs for dual-mode detection is inventively demonstrated. With the exemplification of a direct influence of both features of the nanoprobe via the introduction of analytes, this study opens the feasibility of the analyte-perturbed felicitous equilibrium, which endows label-free methods with versatility and promising prospects. This design may evoke more biosensing strategies with the function of double-signal mutual verification.
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Affiliation(s)
- Peng Jin
- Department of Mathematics and Physics, Luoyang Institute of Science and Technology, Luoyang, 471023, China; State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China
| | - Pingping Wan
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China
| | - Chunyan Zhang
- School of Chemical and Environmental Engineering, Hunan Institute of Technology, Hengyang, 421002, China.
| | - Xu Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China
| | - Yan Wang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China
| | - Jianxin Luo
- School of Materials Science and Engineering, Hunan Institute of Technology, Hengyang, 421002, China
| | - Kun Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China.
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Salari R, Amjadi M, Hallaj T. A smartphone-assisted fluorescent sensing platform for ochratoxin A using Mn-doped CsPbBr 3 perovskite quantum dots embedded in the mesoporous silica as a ratiometric probe. Spectrochim Acta A Mol Biomol Spectrosc 2024; 312:124083. [PMID: 38428214 DOI: 10.1016/j.saa.2024.124083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Revised: 01/30/2024] [Accepted: 02/23/2024] [Indexed: 03/03/2024]
Abstract
Food sources are susceptible to contamination with ochratoxin A (OTA), which is a serious threat to human health. Thus, the construction of novel, simple sensing platforms for OTA monitoring is of utmost need. Manganese-doped lead halide perovskite quantum dots encapsulated with mesoporous SiO2 (Mn-CsPbBr3 QDs@SiO2) were prepared here and used as a ratiometric fluorescent probe for OTA. Mn-CsPbBr3 QDs, synthesized at room temperature, exhibit dual emission with maximum wavelengths of 440 and 570 nm and, when embedded in the SiO2 layer, produce a stable and robust photoluminescence signal. By adding OTA to the probe, emission at 440 nm increases while emission at 570 nm decreases, so a ratiometric response is obtained. Experimental variables affecting the probe signal were studied and optimized and the mechanism of sensing was discussed. This ratiometric sensor demonstrated excellent selectivity and low detection limit (4.1 ng/ml) as well as a wide linear range from 5.0 to 250 ng/ml for OTA. A simple portable smartphone-based device was also constructed and applied for the fluorescence assay. With different OTA concentrations, the multicolor transition from pink to blue under a UV lamp led to simple visual and smartphone-assisted sensing of OTA by using a color analyzing application. Satisfactory recoveries in black tea, coffee, moldy fig and flour samples confirmed the reliability of the assay. The accuracy of the probe was proved by comparison of the results with high-performance liquid chromatography (HPLC).
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Affiliation(s)
- Rana Salari
- Department of Analytical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz 5166616471, Iran
| | - Mohammad Amjadi
- Department of Analytical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz 5166616471, Iran.
| | - Tooba Hallaj
- Cellular and Molecular Research Center, Cellular and Molecular Medicine Institute, Urmia University of Medical Sciences, Urmia 5714783734, Iran
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10
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Liu Y, Sun G, Ma P, Song D. Combining fluorescent quantum dots with transition metal oxide shell as core-shell nanocomposite for turn-on sensing of ascorbic acid. Talanta 2024; 271:125687. [PMID: 38271843 DOI: 10.1016/j.talanta.2024.125687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 01/08/2024] [Accepted: 01/15/2024] [Indexed: 01/27/2024]
Abstract
Ascorbic acid (AA) is an essential vitamin in humans, and numerous AA detection studies have been conducted. Most quantum dots (QDs)-based approaches depend on redox reactions involving AA, and they require the introduction of an intermediate (e.g., metal ions, OPD, TMB) or the assembly of fluorescent substances with nanosheets (such as MnO2) that can be degraded by AA. These methods are complex, unstable, and are susceptible to interferences. To address these problems, a core-shell fluorescence probe was developed for turn-on sensing of AA. The transition metal oxide shell FeOOH was generated around the surface of CuInZnS QDs to quench the fluorescence. In the presence of AA, the FeOOH shell was decomposed into Fe2+ and the fluorescence of QDs was recovered. Using a physical shell, the obtained nanocomposite realized direct AA detection, avoiding the effects of interfering substances caused by QDs exposure. Moreover, our probe showed great potential in point-of-care tests and was readily adapted for use as a smartphone-assisted paper sensor.
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Affiliation(s)
- Yibing Liu
- School of Chemistry and Life Science, Changchun University of Technology, Yanan Street 2055, Changchun, 130012, China
| | - Guoying Sun
- School of Chemistry and Life Science, Changchun University of Technology, Yanan Street 2055, Changchun, 130012, China; Advanced Institute of Materials Science, Changchun University of Technology, Yanan Street 2055, Changchun, 130012, China
| | - Pinyi Ma
- College of Chemistry, Jilin Province Research Center for Engineering and Technology of Spectral Analytical Instruments, Jilin University, Qianjin Street 2699, Changchun, 130012, China.
| | - Daqian Song
- College of Chemistry, Jilin Province Research Center for Engineering and Technology of Spectral Analytical Instruments, Jilin University, Qianjin Street 2699, Changchun, 130012, China.
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11
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Matini A, Naghib SM, Mozafari MR. Quantum Dots in Cancer Theranostics: A Thorough Review of Recent Advancements in Bioimaging, Tracking, and Therapy across Various Cancer Types. Curr Pharm Biotechnol 2024; 25:CPB-EPUB-139866. [PMID: 38644717 DOI: 10.2174/0113892010294163240407153842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 03/12/2024] [Accepted: 03/25/2024] [Indexed: 04/23/2024]
Abstract
Quantum dots (QDs) have attracted considerable interest due to their potential applications and economic viability in various industrial sectors, such as communications, displays, and solar cells. This fascination originates from the quantum size effect-induced remarkable optical properties exhibited by QDs. In recent years, significant progress has been made in producing QDs devoid of cadmium, known to be toxic to cells and living organisms. These QDs have generated considerable interest in bioimaging due to their potential for targeting molecules and cells. There is a developing need for diagnostics and therapy at the individual molecule and single-cell level in the medical field. As a result, the application of QDs in the medical industry is gaining momentum. This study provides an overview of the most recent developments in applying QDs for diagnostic and therapeutic purposes, also known as theranostics. It emphasizes specifically the use of QDs in cancer therapy.
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Affiliation(s)
- Amir Matini
- Nanotechnology Department, School of Advanced Technologies, Iran University of Science and Technology (IUST), Tehran 1684613114, Iran
| | - Seyed Morteza Naghib
- Nanotechnology Department, School of Advanced Technologies, Iran University of Science and Technology (IUST), Tehran 1684613114, Iran
| | - M R Mozafari
- Australasian Nanoscience and Nanotechnology Initiative (ANNI), Monash University LPO, Clayton, VIC 3168, Australia
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12
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Khan SS, Kokilavani S, Alahmadi TA, Ansari MJ. Enhanced visible light driven photodegradation of rifampicin and Cr(VI) reduction activity of ultra-thin ZnO nanosheets/CuCo 2S 4QDs: A mechanistic insights, degradation pathway and toxicity assessment. Environ Pollut 2024; 347:123760. [PMID: 38492754 DOI: 10.1016/j.envpol.2024.123760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Revised: 02/18/2024] [Accepted: 03/07/2024] [Indexed: 03/18/2024]
Abstract
In this study, we focused on fabrication of porous ultra-thin ZnO nanosheet (PUNs)/CuCo2S4 quantum dots (CCS QDs) for visible light-driven photodegradation of rifampicin (RIF) and Cr(VI) reduction. The morphology, structural, optical and textural properties of fabricated photocatalyst were critically analyzed with different analytical and spectroscopic techniques. An exceptionally high RIF degradation (99.97%) and maximum hexavalent Cr(VI) reduction (96.17%) under visible light was achieved at 10 wt% CCS QDs loaded ZnO, which is 213% and 517% greater than bare ZnO PUNs. This enhancement attributed to the improved visible light absorption, interfacial synergistic effect, and high surface-rich active sites. Extremely high generation of ●OH attributed to the spin-orbit coupling in ZnO PUNs@CCS QDs and the existence of oxygen vacancies. Besides, the ZnOPUNs@CCS QDs, forming Z-scheme heterojunctions, enhanced the separation of photogenerated charge carriers. We investigated the influencing factors such as pH, inorganic ions, catalyst dosage and drug dosage on the degradation process. More impressively, a stable performance of ZnO PUNs@CCS QDs obtained even after six consecutive degradation (85.9%) and Cr(VI) reduction (67.7%) cycles. Furthermore, the toxicity of intermediates produced during the photodegradation process were assessed using ECOSAR program. This work provides a new strategy for ZnO-based photocatalysis as a promising candidate for the treatment of various contaminants present in water bodies.
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Affiliation(s)
- S Sudheer Khan
- Department of Oral Medicine and Radiology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai, 600077, Tamil Nadu, India.
| | - S Kokilavani
- Nanobiotechnology Laboratory, Department of Biotechnology, Bannari Amman Institute of Technology, Sathyamangalam, Tamil Nadu, India
| | - Tahani Awad Alahmadi
- Department of Pediatrics, College of Medicine and King Khalid University Hospital, King Saud University, Medical City, PO Box-2925, Riyadh, 11461, Saudi Arabia
| | - Mohammad Javed Ansari
- Department of Botany, Hindu College Moradabad (Mahatma Jyotiba Phule Rohilkhand University Bareilly), Moradabad, India
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13
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Dasgupta U, Ghosh M, Chakraborty P, Park EY, Indra A, Chowdhury AD. Dual-Mode Virus Detection: Combining Electrochemical and Fluorescence Modalities for Enhanced Sensitivity and Reliability. ACS Appl Bio Mater 2024. [PMID: 38616360 DOI: 10.1021/acsabm.4c00240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/16/2024]
Abstract
This study introduces a dual-mode biosensor specifically designed for the quantitative detection of viruses in rapid analysis. The biosensor is unique in its use of both optical (fluorescence) and electrochemical (impedance) detection methods using the same nanocomposites, providing a dual confirmation system for virus (norovirus-like particles) quantification. The system is based on using two antibody-conjugated nanocomposites: CdSeS quantum dots and Au-N,S-GQD nanocomposites. For optical detection, the principle relies on the fluorescence quenching of CdSeS by Au-N,S-GQD in a sandwich structure with the target. Conversely, electrochemical detection is based on the change in impedance caused by the formation of the same sandwich structure. The biosensor demonstrated exceptional sensitivity, capable of detecting norovirus at concentrations of as low as femtomolar in the electrochemical method and picomolar in the optical method. In the dual-responsive concentration range from 10-13 to 10-10 M, the sensor is highly sensitive in both methods, creating significant changes in fluorescence intensity and impedance in the presence of virus. Furthermore, the biosensor exhibits a high degree of specificity, with a negligible response to nontarget proteins, even within complex test solutions. This work represents a significant advancement in the field of biosensor technology, offering a fast, accurate, and reliable method for diagnosing viral infections and diseases.
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Affiliation(s)
- Uddipan Dasgupta
- Amity Institute of Nanotechnology, Amity University Kolkata, Major Arterial Road, AA II, Newtown, Kolkata, West Bengal 700135, India
| | - Malabika Ghosh
- Amity Institute of Nanotechnology, Amity University Kolkata, Major Arterial Road, AA II, Newtown, Kolkata, West Bengal 700135, India
| | - Pampi Chakraborty
- Department of Microbiology, St. Xavier's College (Autonomous), 5, Mahapalika Marg, Dhobi Talao, Chhatrapati Shivaji Terminus Area, Fort, Mumbai, Maharashtra 400001, India
| | - Enoch Y Park
- Laboratory of Biotechnology, Research Institute of Green Science and Technology, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan
| | - Arindam Indra
- Department of Chemistry, Indian Institute of Technology (BHU), Varanasi, Uttar Pradesh 221005, India
| | - Ankan Dutta Chowdhury
- Amity Institute of Nanotechnology, Amity University Kolkata, Major Arterial Road, AA II, Newtown, Kolkata, West Bengal 700135, India
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14
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Wang R, Xu ZY, Li T, Li NB, Luo HQ. Mediating sequential turn-on and turn-off fluorescence signals for discriminative detection of Ag + and Hg 2+ via readily available CdSe quantum dots. Spectrochim Acta A Mol Biomol Spectrosc 2024; 315:124288. [PMID: 38636427 DOI: 10.1016/j.saa.2024.124288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 04/07/2024] [Accepted: 04/11/2024] [Indexed: 04/20/2024]
Abstract
Realizing the accurate recognition and quantification of heavy metal ions is pivotal but challenging in the environmental, biological, and physiological science fields. In this work, orange fluorescence emitting quantum dots (OQDs) have been facilely synthesized by one-step method. The participation of silver ion (Ag+) can evoke the unique aggregation-induced emission (AIE) of OQDs, resulting in prominent fluorescence enhancement, which is scarcely reported previously. Moreover, the Ag+-triggered turn-on fluorescence can be continuously shut down by mercury ion (Hg2+). This intriguing sequential fluorescence variation exhibits great sensing potency for discrimination and quantification of Ag+ and Hg2+. Meanwhile, our OQDs also exhibit good selectivity, sensitivity, and rapid response toward Ag+ and Hg2+ detection. Due to their high performance, OQDs have been applied to the determination of Ag+ and Hg2+ levels in daily necessities and water samples with satisfactory results. Moreover, a portable smartphone-assisted sensing platform based on chromatic change has been constructed, facilitating the real-time and naked-eye visualization in the resource-confined scene. We anticipate that the discovery of these OQDs would be advantageous for exploring novel QDs materials for fluorescence detection.
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Affiliation(s)
- Rong Wang
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Zi Yi Xu
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Ting Li
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Nian Bing Li
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China.
| | - Hong Qun Luo
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China.
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15
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Nizamani MM, Hughes AC, Zhang HL, Wang Y. Revolutionizing agriculture with nanotechnology: Innovative approaches in fungal disease management and plant health monitoring. Sci Total Environ 2024; 928:172473. [PMID: 38615773 DOI: 10.1016/j.scitotenv.2024.172473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Revised: 04/10/2024] [Accepted: 04/11/2024] [Indexed: 04/16/2024]
Abstract
Nanotechnology has emerged as a transformative force in modern agriculture, offering innovative solutions to address challenges related to fungal plant diseases and overall agricultural productivity. Specifically, the antifungal activities of metal, metal oxide, bio-nanoparticles, and polymer nanoparticles were examined, highlighting their unique mechanisms of action against fungal pathogens. Nanoparticles can be used as carriers for fungicides, offering advantages in controlled release, targeted delivery, and reduced environmental toxicity. Nano-pesticides and nano-fertilizers can enhance nutrient uptake, plant health, and disease resistance were explored. The development of nanosensors, especially those utilizing quantum dots and plasmonic nanoparticles, promises early and accurate detection of fungal pathogens, a crucial step in timely disease management. However, concerns about their potential toxic effects on non-target organisms, environmental impacts, and regulatory hurdles underscore the importance of rigorous research and impact assessments. The review concludes by emphasizing the significant prospects of nanotechnology in reshaping the future of agriculture but advocates for a balanced approach that prioritizes safety, sustainability, and environmental stewardship.
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Affiliation(s)
- Mir Muhammad Nizamani
- Department of Plant Pathology, College of Agriculture, Guizhou University, Guiyang 550025, China
| | - Alice C Hughes
- School of Biological Sciences, University of Hong Kong, China
| | - Hai-Li Zhang
- Sanya Nanfan Research Institute, Hainan Yazhou Bay Seed Laboratory, Sanya 572025, China
| | - Yong Wang
- Department of Plant Pathology, College of Agriculture, Guizhou University, Guiyang 550025, China.
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16
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Gao J, Xie H, Zuo F, Liu H, Zhao Y, Yang C. Carbon quantum dots modified and Y 3+ doped Ni 3(NO 3) 2(OH) 4 nanospheres with excellent battery-like supercapacitor performance. Chemistry 2024; 30:e202400170. [PMID: 38294890 DOI: 10.1002/chem.202400170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 01/30/2024] [Accepted: 01/31/2024] [Indexed: 02/02/2024]
Abstract
Supercapacitor is an important energy storage device widely used in the automobile industry, military production, and communication equipment because of its fast charge-discharge rate, and high power density. Herein, carbon quantum dots modified and Y3+ doped Ni3(NO3)2(OH)4 (NiY@CQDs) nanospheres are prepared by a solvothermal method and used as an electrode material. The electrochemical properties of NiY@CQDs were measured in a three-electrode system. An asymmetric supercapacitor (ASC) cell was assembled with activated carbon (AC) as the anode and NiY@CQDs as the cathode. The electrochemical properties of the ASC device were measured in a two-electrode system. Experimental results show the shape of NiY@CQDs is petal-shaped and the introducing carbon quantum dots and doping Y3+ significantly increases the specific surface area, conductivity, and specific capacitance of Ni3(NO3)2(OH)4. The mass-specific capacitance of NiY@CQDs reaches up to 2944 F g-1 at a current density of 1 A g-1. The asymmetric supercapacitor of NiY@CQDs//AC has a high energy density of 138.65 Wh kg-1 at a power density of 1500 W kg-1, displaying a wide range of application prospects in the energy storage area.
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Affiliation(s)
- Jiamin Gao
- School of Chemistry and Chemical Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, Shaanxi, China
| | - Huidong Xie
- School of Chemistry and Chemical Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, Shaanxi, China
| | - Feng Zuo
- School of Chemistry and Chemical Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, Shaanxi, China
| | - Hu Liu
- School of Chemistry and Chemical Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, Shaanxi, China
| | - Yajuan Zhao
- School of Chemistry and Chemical Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, Shaanxi, China
| | - Chang Yang
- Engineering Comprehensive Training Center, Xi'an University of Architecture and Technology, Xi'an, 710055, Shaanxi, China
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17
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Huang F, Sun C, Dong J, Wu X, Du Y, Hu Q, Zhou L. Ultra-sensitive fluorescent biosensor for multiple bacteria detection based on CDs/QDs@ZIF-8 and microfluidic fluidized bed. Mikrochim Acta 2024; 191:237. [PMID: 38570419 DOI: 10.1007/s00604-024-06303-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Accepted: 03/07/2024] [Indexed: 04/05/2024]
Abstract
An ultra-sensitive fluorescent biosensor based on CDs/QDs@ZIF-8 and microfluidic fluidized bed was developed for rapid and ultra-sensitive detection of multiple target bacteria. The zeolitic imidazolate frameworks (ZIF-8) act as the carrier to encapsulate three kinds of fluorescence signal molecules from the CDs/QDs@ZIF-8 signal amplification system. Besides, three kinds of target pathogenic bacteria were automatically, continuously, and circularly captured by the magnetic nanoparticles (MNPs) in the microfluidic fluidized bed. The neutral Na2EDTA solution was the first time reported to not only dissolve the ZIF-8 frameworks from the MNPs-bacteria-CDs/QDs@ZIF-8 sandwich complexes, but also release the CDs/QDs from sandwich complexes with no loss of fluorescence signal. Due to the advantages of signal amplification and automated sample pretreatment, the proposed fluorescent biosensor can simultaneously detect Escherichia coli O157:H7, Salmonella paratyphi A, and Salmonella paratyphi B as low as 101 CFU/mL within 1.5 h, respectively. The mean recovery in spiked milk samples can reach 99.18%, verifying the applicability of this biosensor in detecting multiple bacteria in real samples.
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Affiliation(s)
- Fengchun Huang
- National Key Laboratory of Biochemical Engineering, PLA Key Laboratory of Biopharmaceutical Production & Formulation Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, People's Republic of China
- Innovation Academy for Green Manufacture Institute, Chinese Academy of Sciences, Beijing, 100190, People's Republic of China
- Institute of Agro-Product Quality and Safety, of Quality Standard & Testing Technology for Agro-Products, Key Laboratory, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Chongsi Sun
- National Key Laboratory of Biochemical Engineering, PLA Key Laboratory of Biopharmaceutical Production & Formulation Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, People's Republic of China
- Innovation Academy for Green Manufacture Institute, Chinese Academy of Sciences, Beijing, 100190, People's Republic of China
| | - Jinying Dong
- National Key Laboratory of Biochemical Engineering, PLA Key Laboratory of Biopharmaceutical Production & Formulation Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, People's Republic of China
- University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
| | - Xiaoya Wu
- National Key Laboratory of Biochemical Engineering, PLA Key Laboratory of Biopharmaceutical Production & Formulation Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, People's Republic of China
- Innovation Academy for Green Manufacture Institute, Chinese Academy of Sciences, Beijing, 100190, People's Republic of China
| | - Yuguang Du
- National Key Laboratory of Biochemical Engineering, PLA Key Laboratory of Biopharmaceutical Production & Formulation Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, People's Republic of China
- Innovation Academy for Green Manufacture Institute, Chinese Academy of Sciences, Beijing, 100190, People's Republic of China
- University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
- Biosafety Research Center Yangtze River Delta in Zhangjiagang, Suzhou, 215611, People's Republic of China
| | - Qiushi Hu
- National Key Laboratory of Biochemical Engineering, PLA Key Laboratory of Biopharmaceutical Production & Formulation Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, People's Republic of China
- Innovation Academy for Green Manufacture Institute, Chinese Academy of Sciences, Beijing, 100190, People's Republic of China
- Biosafety Research Center Yangtze River Delta in Zhangjiagang, Suzhou, 215611, People's Republic of China
| | - Lei Zhou
- National Key Laboratory of Biochemical Engineering, PLA Key Laboratory of Biopharmaceutical Production & Formulation Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, People's Republic of China.
- Innovation Academy for Green Manufacture Institute, Chinese Academy of Sciences, Beijing, 100190, People's Republic of China.
- University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China.
- Biosafety Research Center Yangtze River Delta in Zhangjiagang, Suzhou, 215611, People's Republic of China.
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18
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Wei T, Liu N, Yao Y, Huang X, Wang Z, Wu T, Zhang T, Xue Y, Tang M. Low-dose cadmium telluride quantum dots trigger M1 polarization in macrophages through mTOR-mediated transcription factor EB activation. NanoImpact 2024; 34:100505. [PMID: 38579989 DOI: 10.1016/j.impact.2024.100505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 03/18/2024] [Accepted: 03/29/2024] [Indexed: 04/07/2024]
Abstract
The increasing application of quantum dots (QDs) increases interactions with organisms. The inflammatory imbalance is a significant manifestation of immunotoxicity. Macrophages maintain inflammatory homeostasis. Using macrophages differentiated by phorbol 12-myristate 13-acetate-induced THP-1 cells as models, the study found that low-dose (5 μM) cadmium telluride QDs (CdTe-QDs) hindered monocyte-macrophage differentiation. CD11b is a surface marker of macrophage, and the addition of CdTe-QDs during induction resulted in a decrease in CD11b expression. Moreover, exposure of differentiated THP-1 macrophage (dTHP-1) to 5 μM CdTe-QDs led to the initiation of M1 polarization. This was indicated by the increased surface marker CD86 expression, along with elevated level of NF-κB and IL-1β proteins. The potential mechanisms are being explored. The transcription factor EB (TFEB) plays a significant role in immune regulation and serves as a crucial regulator of the autophagic lysosomal pathway. After exposed to CdTe-QDs, TFEB activation-mediated autophagy and M1 polarization were observed to occur simultaneously in dTHP-1. The mTOR signaling pathway contributed to TFEB activation induced by CdTe-QDs. However, mTOR-independent activation of TFEB failed to promote M1 polarization. These results suggest that mTOR-TFEB is an advantageous target to enhance the biocompatibility of CdTe-QDs.
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Affiliation(s)
- Tingting Wei
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education; School of Public Health, Southeast University, Nanjing 210009, PR China
| | - Na Liu
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education; School of Public Health, Southeast University, Nanjing 210009, PR China
| | - Yongshuai Yao
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education; School of Public Health, Southeast University, Nanjing 210009, PR China
| | - Xiaoquan Huang
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education; School of Public Health, Southeast University, Nanjing 210009, PR China
| | - Zhihui Wang
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education; School of Public Health, Southeast University, Nanjing 210009, PR China
| | - Tianshu Wu
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education; School of Public Health, Southeast University, Nanjing 210009, PR China
| | - Ting Zhang
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education; School of Public Health, Southeast University, Nanjing 210009, PR China
| | - Yuying Xue
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education; School of Public Health, Southeast University, Nanjing 210009, PR China
| | - Meng Tang
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education; School of Public Health, Southeast University, Nanjing 210009, PR China.
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19
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Zeng S, Chen Z, Huang L, Li C, Wang P, Qin D, Gao L. A highly efficient and selective rapid detection method applied to the detection of amide herbicides in fish serum. Food Chem 2024; 449:139215. [PMID: 38581791 DOI: 10.1016/j.foodchem.2024.139215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 03/27/2024] [Accepted: 03/31/2024] [Indexed: 04/08/2024]
Abstract
Misuse of amide herbicides in the fisheries environment can pose unpredictable harm to aquatic products and ultimately human health. Thus, the development of a real-time, rapid on-site detection method is crucial. This study proposes for the first time, a paper-based visual detection method for amide herbicides in fish serum, by coating the molecularly imprinted polymer layer onto quantum dots, prepared fluorescent sensing materials (QDs@MIPs) for the detection of amide herbicides in aquatic products. These materials specifically cause fluorescence quenching in the presence of amide herbicides resulting in a color change. For practical application, this research designed a rapid test strip based on QDs@MIPs, meanwhile, incorporate a smartphone or a fluorescence spectrophotometer for qualitative and quantitative measurements, the limit of detection ranges of 0.061-0.500 μM. The method can be used for on-site evaluation of aquatic products, providing new technology for monitoring the safety of aquatic products.
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Affiliation(s)
- Sili Zeng
- Heilongjiang River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Harbin 150070, China; College of Fisheries and Life Science, Shanghai Ocean University, Shanghai 201306, China
| | - Zhongxiang Chen
- Heilongjiang River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Harbin 150070, China; Supervision, Inspection and Testing Center for Fishery Environment and Aquatic Products (Harbin), Ministry of Agriculture and Rural Affairs, Harbin 150070, China
| | - Li Huang
- Heilongjiang River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Harbin 150070, China; Supervision, Inspection and Testing Center for Fishery Environment and Aquatic Products (Harbin), Ministry of Agriculture and Rural Affairs, Harbin 150070, China
| | - Chenhui Li
- Heilongjiang River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Harbin 150070, China; Supervision, Inspection and Testing Center for Fishery Environment and Aquatic Products (Harbin), Ministry of Agriculture and Rural Affairs, Harbin 150070, China
| | - Peng Wang
- Heilongjiang River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Harbin 150070, China; Supervision, Inspection and Testing Center for Fishery Environment and Aquatic Products (Harbin), Ministry of Agriculture and Rural Affairs, Harbin 150070, China
| | - Dongli Qin
- Heilongjiang River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Harbin 150070, China; Supervision, Inspection and Testing Center for Fishery Environment and Aquatic Products (Harbin), Ministry of Agriculture and Rural Affairs, Harbin 150070, China; Key Laboratory of Control of Quality and Safety for Aquatic Products, Ministry of Agriculture and Rural Affairs, Beijing 100141, China
| | - Lei Gao
- Heilongjiang River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Harbin 150070, China; Supervision, Inspection and Testing Center for Fishery Environment and Aquatic Products (Harbin), Ministry of Agriculture and Rural Affairs, Harbin 150070, China; Key Laboratory of Control of Quality and Safety for Aquatic Products, Ministry of Agriculture and Rural Affairs, Beijing 100141, China; College of Chemistry, Chemical Engineering and Resource Utilization, Key Laboratory of Forest Plant Ecology, Northeast Forestry University, Harbin, China.
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20
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Aykut S, Ük N, Coşkun İY, Keskin SŞ, Nar I, Trabzon L, Ünlü C. Modulating spectral response of raw photosynthetic pigments via ternary cadmium chalcogenide quantum dots: simultaneous enhancement at green spectrum and inhibition at UV region. Photosynth Res 2024; 160:1-16. [PMID: 38407778 PMCID: PMC11006769 DOI: 10.1007/s11120-024-01085-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Accepted: 02/06/2024] [Indexed: 02/27/2024]
Abstract
Photosynthesis relies on the absorption of sunlight by photosynthetic pigments (PPs) such as chlorophylls and carotenoids. While these pigments are outstanding at harvesting light, their natural structure restricts their ability to harvest light at specific wavelengths. In this study, Oleic acid-capped CdSeS and CdTeS ternary quantum dots (QDs) were synthesized using a novel two-phase synthesis method. Then, these QDs were used to interact with raw PPs, a mixture of chlorophylls and carotenoids isolated from spinach. Our findings revealed the following: (1) Interacting QDs with raw PPs effectively inhibited the chlorophyll fluorescence of the pigments upon excitation in UV light region (250-400 nm) without causing any damage to their structure. (2) By forming an interaction with QDs, the chlorophyll fluorescence of raw PPs could be induced through excitation with green-light spectrum. (3) The composition of the QDs played a fundamental role in their interaction with PPs. Our study demonstrated that the photophysical properties of isolated PPs could be modified by using cadmium-based QDs by preserving the structure of the pigments themselves.
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Affiliation(s)
- Sümeyye Aykut
- Department of Chemistry, Faculty of Science and Letters, Istanbul Technical University, 34469, Maslak, Istanbul, Turkey
| | - Nida Ük
- Polymer Science and Technology, Istanbul Technical University, 34469, Maslak, Istanbul, Turkey
| | - İbrahim Yağız Coşkun
- Department of Nanoscience and Nanoengineering, Istanbul Technical University, 34469, Maslak, Istanbul, Turkey
| | - Sultan Şahin Keskin
- Department of Nanoscience and Nanoengineering, Istanbul Technical University, 34469, Maslak, Istanbul, Turkey
- MEMS Research Center, Istanbul Technical University, Istanbul, Turkey
| | - Ilgın Nar
- Department of Nanoscience and Nanoengineering, Istanbul Technical University, 34469, Maslak, Istanbul, Turkey
- Istanbul Technical University Nanotechnology Research and Application Center (ITUNano), Istanbul, Turkey
| | - Levent Trabzon
- MEMS Research Center, Istanbul Technical University, Istanbul, Turkey
- Faculty of Mechanical Engineering, Istanbul Technical University, Istanbul, Turkey
| | - Caner Ünlü
- Department of Chemistry, Faculty of Science and Letters, Istanbul Technical University, 34469, Maslak, Istanbul, Turkey.
- Polymer Science and Technology, Istanbul Technical University, 34469, Maslak, Istanbul, Turkey.
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21
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Shykholeslami A, Ghavami R, Rasouli Z. Nanosized quantum dots-wrapped metallic particles ensembles integrated into filter disc-based analytical device for garlic evaluation. Application to monitor fake pickled garlic in balsamic vinegar. Food Chem 2024; 437:137809. [PMID: 37866344 DOI: 10.1016/j.foodchem.2023.137809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 09/29/2023] [Accepted: 10/17/2023] [Indexed: 10/24/2023]
Abstract
Herein, an affordable and simple analytical device is presented to portable identify of garlic in 30 min; the evaluation needs no pre-treatment of sample. The analytical device fabrication was did employing a headspace-based nanosensor array using of inexpensive materials as commercial filter discs, quantum dots (QDs), and metallic nanoparticles (MNPs). The nanoarray is fabricated by the accumulation QDs on MNPs surface, that results in the production of ensembles of QDs/MNPs. The ensembles generate diverse colorimetric profiles as "fingerprints" regarding to each garlic sample. The volatile organosulfur compounds (OSCs) of garlic can prefer binding to the MNPs comparing with QDs. The color profiles can be displayed with a smartphone camera, which can be quantitatively distinguished by chemometrics approaches. The analytical device was used to assessment of fake pickled samples in balsamic vinegar. This device proves well potential for qualitative control of garlic.
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Affiliation(s)
- Ailin Shykholeslami
- Chemometrics Laboratory, Department of Chemistry, Faculty of Science, University of Kurdistan, P. O. Box 416, Sanandaj 66177-15175, Iran
| | - Raouf Ghavami
- Chemometrics Laboratory, Department of Chemistry, Faculty of Science, University of Kurdistan, P. O. Box 416, Sanandaj 66177-15175, Iran.
| | - Zolaikha Rasouli
- Chemometrics Laboratory, Department of Chemistry, Faculty of Science, University of Kurdistan, P. O. Box 416, Sanandaj 66177-15175, Iran.
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22
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Gupta A, Rotake D, Darji A. Sensing lead ions in water: a comprehensive review on strategies and sensor materials. ANAL SCI 2024:10.1007/s44211-024-00547-1. [PMID: 38523231 DOI: 10.1007/s44211-024-00547-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Accepted: 02/25/2024] [Indexed: 03/26/2024]
Abstract
It is well-known fact that elevated lead ions (Pb2+), the third most toxic among heavy metal ions in aqueous systems, pose a threat to human health and aquatic ecosystems when they exceed permissible limits. Pb2+ is commonly found in industrial waste and fertilizers, contaminating water sources and subsequently entering the human body, causing various adverse health conditions. Unlike being expelled, Pb2+ accumulates within the body, posing potential health risks. The harmful impact of presence of Pb2+ in water have prompted researchers to diligently work toward maintaining water quality. Recognizing the importance of Pb2+, this review article makes a sincere and effective effort to address the issues associated with Pb2+. This overview article gives insights into various sensing approaches to detect Pb2+ in water using different sensing materials, including 2-dimensional materials, thiols, quantum dots, and polymers. Herein, different sensing approaches such as electrochemical, optical, field effect transistor-based, micro-electromechanical system-based, and chemi resistive are thoroughly explained. Field effect transistor-based and chemiresistive work on similar principles and are compared on the basis of their fabrication processes and sensing capabilities. In conclusion, future directions for chemiresistive sensors in Pb2+ detection are proposed, emphasizing their simplicity, portability, straightforward functionality, and ease of fabrication. Notably, it sheds light on various thiol and ligand compounds and coupling strategies utilized in Pb2+ detection. This comprehensive study is expected to benefit individuals engaged in Pb2+ detection.
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Affiliation(s)
- Anju Gupta
- Department of Electronics Engineering, Sardar Vallabhbhai National Institute of Technology, Ichchhanath, Surat, 395007, Gujarat, India
- Department of Biomedical Engineering, Shri Ramdeobaba College of Engineering and Management, Ramdeo Tekdi, Nagpur, 440013, Maharashtra, India
| | - Dinesh Rotake
- Department of Electrical Engineering, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, Hyderabad, 502284, Telangana, India.
| | - Anand Darji
- Department of Electronics Engineering, Sardar Vallabhbhai National Institute of Technology, Ichchhanath, Surat, 395007, Gujarat, India
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23
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Wang A, Wen Y, Zhu X, Zhou J, Chen Y, Liu H, Liang C, Liu E, Zhang Y, Ai G, Gaiping Z. Quantum dot-based fluorescence-linked immunosorbent assay for the rapid detection of lomefloxacin in animal-derived foods. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2024:1-12. [PMID: 38502862 DOI: 10.1080/19440049.2023.2267144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 10/01/2023] [Indexed: 03/21/2024]
Abstract
Lomefloxacin (LMF), a third-generation fluoroquinolone antibacterial agent, is often used to treat bacterial and mycoplasma infections. However, due to its prolonged half-life and slow metabolism, it is prone to residues in animal-derived foods, posing a potential food safety risk. Therefore, it is particularly urgent and important to establish a method for detecting lomefloxacin. In this study, direct and indirect competitive fluorescence-linked immunosorbent assay (dc-FLISA and ic-FLISA) based on quantum dots (QDs) was established for the detection of LMF. As for dc-FLISA, the half-maximal inhibitory concentration (IC50) and limit of detection (LOD) were 0.84 ng/mL, 0.04 ng/mL, respectively, the detection ranges from 0.08 to 9.11 ng/mL. The IC50 and LOD of ic-FLISA were 0.43 ng/mL and 0.03 ng/mL, respectively, meanwhile the detection ranges from 0.05 to 3.49 ng/mL. The recoveries of dc-FLISA and ic-FLISA in animal-derived foods (milk, fish, chicken, and honey), ranged from 95.8% to 105.2% and from 96.3% to 103.4%, respectively, with the coefficients of variation less than 8%. These results suggest that the dc-FLISA and ic-FLISA methods, which are based on QD labelling, are highly sensitive and cost-effective, and can be effectively used to detect LMF in animal-derived foods.
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Affiliation(s)
- Aiping Wang
- School of Life Sciences, Zhengzhou University, Zhengzhou, P.R. China
- Longhu Laboratory, Zhengzhou, P.R. China
- Henan Key Laboratory of Immunobiology, Zhengzhou, P.R. China
| | - Yihong Wen
- School of Life Sciences, Zhengzhou University, Zhengzhou, P.R. China
- Henan Key Laboratory of Immunobiology, Zhengzhou, P.R. China
| | - Xifang Zhu
- School of Life Sciences, Zhengzhou University, Zhengzhou, P.R. China
- Longhu Laboratory, Zhengzhou, P.R. China
- Henan Key Laboratory of Immunobiology, Zhengzhou, P.R. China
| | - Jingming Zhou
- School of Life Sciences, Zhengzhou University, Zhengzhou, P.R. China
- Longhu Laboratory, Zhengzhou, P.R. China
- Henan Key Laboratory of Immunobiology, Zhengzhou, P.R. China
| | - Yumei Chen
- School of Life Sciences, Zhengzhou University, Zhengzhou, P.R. China
- Longhu Laboratory, Zhengzhou, P.R. China
- Henan Key Laboratory of Immunobiology, Zhengzhou, P.R. China
| | - Hongliang Liu
- School of Life Sciences, Zhengzhou University, Zhengzhou, P.R. China
- Longhu Laboratory, Zhengzhou, P.R. China
- Henan Key Laboratory of Immunobiology, Zhengzhou, P.R. China
| | - Chao Liang
- School of Life Sciences, Zhengzhou University, Zhengzhou, P.R. China
- Longhu Laboratory, Zhengzhou, P.R. China
- Henan Key Laboratory of Immunobiology, Zhengzhou, P.R. China
| | - Enping Liu
- School of Life Sciences, Zhengzhou University, Zhengzhou, P.R. China
- Longhu Laboratory, Zhengzhou, P.R. China
- Henan Key Laboratory of Immunobiology, Zhengzhou, P.R. China
| | - Ying Zhang
- School of Life Sciences, Zhengzhou University, Zhengzhou, P.R. China
- Longhu Laboratory, Zhengzhou, P.R. China
- Henan Key Laboratory of Immunobiology, Zhengzhou, P.R. China
| | - Guoping Ai
- School of Life Sciences, Zhengzhou University, Zhengzhou, P.R. China
- Henan Key Laboratory of Immunobiology, Zhengzhou, P.R. China
| | - Zhang Gaiping
- School of Life Sciences, Zhengzhou University, Zhengzhou, P.R. China
- Longhu Laboratory, Zhengzhou, P.R. China
- Henan Key Laboratory of Immunobiology, Zhengzhou, P.R. China
- School of Advanced Agricultural Sciences, Peking University, Beijing, P.R. China
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24
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Chen J, Meng H, Fang Z, Lukman I, Gao J, Liao J, Deng Q, Sun L, Gooneratne R. An "off-on" fluorescent nanosensor for the detection of cadmium ions based on APDC-etched CdTe/CdS/SiO 2 quantum dots. Heliyon 2024; 10:e26980. [PMID: 38463779 PMCID: PMC10920365 DOI: 10.1016/j.heliyon.2024.e26980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Revised: 02/21/2024] [Accepted: 02/22/2024] [Indexed: 03/12/2024] Open
Abstract
In this study, we have developed a novel fluorescent "OFF-ON" quantum dots (QDs) sensor based on CdTe/CdS/SiO2 cores. Ammonium pyrrolidine dithiocarbamate (APDC), ethylenediamine tetraacetic acid (EDTA), and 1,10-phenanthroline (Phen) served as potential chemical etchants. Among these three etchants, APDC exhibited the most pronounced quenching effect (94.06%). The APDC-etched CdTe/CdS/SiO2 QDs demonstrated excellent optical properties: the fluorescence of the APDC-etched CdTe/CdS/SiO2 QDs system (excitation wavelength: 365 nm and emission wavelength: 622 nm) was significantly and selectively restored upon the addition of cadmium ions (Cd2+) (89.22%), compared to 15 other metal ions. The linear response of the APDC-etched CdTe/CdS/SiO2 QDs was observed within the cadmium ion (Cd2+) concentration ranges of 0-20 μmol L-1 and 20-160 μmol L-1 under optimized conditions (APDC: 300 μmol L-1, pH: 7.0, reaction time: 10 min). The detection limit (LOD) of the APDC-etched CdTe/CdS/SiO2 QDs for Cd2+ was 0.3451 μmol L-1 in the range of 0-20 μmol L-1. The LOD achieved by the QDs in this study surpasses that of the majority of previously reported nanomaterials. The feasibility of using APDC-etched CdTe/CdS/SiO2 QDs for Cd2+ detection in seawater, freshwater, and milk samples was verified, with average recoveries of 95.27%-110.68%, 92%-106.47%, and 90.73%-111.60%, respectively, demonstrating satisfactory analytical precision (RSD ≤ 8.26).
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Affiliation(s)
- Jiaqian Chen
- College of Food Science and Technology, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Provincial Engineering Technology, Research Center of Marine Food, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution, College of Continuing Education, Guangdong Ocean University, Zhanjiang, 524088, China
| | - Haimei Meng
- College of Food Science and Technology, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Provincial Engineering Technology, Research Center of Marine Food, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution, College of Continuing Education, Guangdong Ocean University, Zhanjiang, 524088, China
| | - Zhijia Fang
- College of Food Science and Technology, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Provincial Engineering Technology, Research Center of Marine Food, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution, College of Continuing Education, Guangdong Ocean University, Zhanjiang, 524088, China
| | - Iddrisu Lukman
- College of Food Science and Technology, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Provincial Engineering Technology, Research Center of Marine Food, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution, College of Continuing Education, Guangdong Ocean University, Zhanjiang, 524088, China
| | - Jialong Gao
- College of Food Science and Technology, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Provincial Engineering Technology, Research Center of Marine Food, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution, College of Continuing Education, Guangdong Ocean University, Zhanjiang, 524088, China
| | - Jianmeng Liao
- Zhanjiang Institute for Food and Drug Control, Zhanjiang, 524022, China
| | - Qi Deng
- College of Food Science and Technology, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Provincial Engineering Technology, Research Center of Marine Food, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution, College of Continuing Education, Guangdong Ocean University, Zhanjiang, 524088, China
| | - Lijun Sun
- College of Food Science and Technology, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Provincial Engineering Technology, Research Center of Marine Food, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution, College of Continuing Education, Guangdong Ocean University, Zhanjiang, 524088, China
| | - Ravi Gooneratne
- Department of Wine, Food and Molecular Biosciences, Lincoln University, Lincoln, Canterbury, 7647, New Zealand
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25
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Koul K, Jawanda IK, Soni T, Singh P, Sharma D, Kumari S. Quantum dots: a next generation approach for pathogenic microbial biofilm inhibition; mechanistic insights, existing challenges, and future potential. Arch Microbiol 2024; 206:158. [PMID: 38480540 DOI: 10.1007/s00203-024-03919-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 02/21/2024] [Accepted: 02/28/2024] [Indexed: 04/16/2024]
Abstract
Quantum Dots (QDs) have emerged as versatile nanomaterials with origins spanning organic, inorganic, and natural sources, revolutionizing various biomedical applications, particularly in combating pathogenic biofilm formation. Biofilms, complex structures formed by microbial communities enveloped in exopolysaccharide matrices, pose formidable challenges to traditional antibiotics due to their high tolerance and resistance, exacerbating inefficacy issues in antibiotic treatments. QDs offer a promising solution, employing physical mechanisms like photothermal or photodynamic therapy to disrupt biofilms. Their efficacy is noteworthy, with lower susceptibility to resistance development and broad-spectrum action as compared to conventional antibiotic methods. The stability and durability of QDs ensure sustained biofilm activity, even in challenging environmental conditions. This comprehensive review delves into the synthesis, properties, and applications of Carbon Quantum Dots (CQDs), most widely used QDs, showcasing groundbreaking developments that position these nanomaterials at the forefront of cutting-edge research and innovation. These nanomaterials exhibit multifaceted mechanisms, disrupting cell walls and membranes, generating reactive oxygen species (ROS), and binding to nucleic materials, effectively inhibiting microbial proliferation. This opens transformative possibilities for healthcare interventions by providing insights into biofilm dynamics. However, challenges in size control necessitate ongoing research to refine fabrication techniques, ensure defect-free surfaces, and optimize biological activity. QDs emerge as microscopic yet potent tools, promising to contribute to a brighter future where quantum wonders shape innovative solutions to persistently challenging issues posed by pathogenic biofilms. Henceforth, this review aims to explore QDs as potential agents for inhibiting pathogenic microbial biofilms, elucidating the underlying mechanisms, addressing the current challenges, and highlighting their promising future potential.
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Affiliation(s)
- Khyati Koul
- Department of Microbiology, Panjab University, Chandigarh, 160014, India
| | | | - Thomson Soni
- Department of Microbiology, Panjab University, Chandigarh, 160014, India
| | - Pranjali Singh
- Department of Microbiology, Panjab University, Chandigarh, 160014, India
| | - Divyani Sharma
- Department of Microbiology, Panjab University, Chandigarh, 160014, India
| | - Seema Kumari
- Department of Microbiology, Panjab University, Chandigarh, 160014, India.
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26
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Feng T, Chen Z, Cheng X. ZnS:Mn Quantum Dots Coated with a Silica Molecularly Imprinted Polymer for Trace Teflubenzuron Detection in Vegetable Samples. J Fluoresc 2024:10.1007/s10895-024-03634-8. [PMID: 38460097 DOI: 10.1007/s10895-024-03634-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Accepted: 02/26/2024] [Indexed: 03/11/2024]
Abstract
A novel nanocomposite fluorescent probe consisting of quantum dots and a silica molecularly imprinted polymer (MIPs-capped ZnS:Mn QDs) was synthesized and applied for the rapid detection of teflubenzuron (TBZ) based on the fluorescence quenching of a composite probe via TBZ. The fluorescence quenching efficiency of MIP@SiO2@ZnS:Mn QDs displayed a linear relationship over the concentration range of 0-26.24 μmol/L with a correlation coefficient of 0.9857 and the limit of detection was 2.4 μg/L. The selectivity test showed that the nanocomposite had good selectively rebind TBZ with higher imprinting factor of 3.06 compared with four structurally similar compounds. In addition, the probe was successfully applied to the detection of TBZ in vegetable samples with a recovery of 90.3~97.1% and with a relative standard deviation below 3.2%. This developed method has the advantages of simple preparation, fast response and low toxicity for trace TBZ detection.
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Affiliation(s)
- Tian Feng
- Key Laboratory Environment-Friendly Polymer Materials of Anhui Province, School of Chemistry and Chemical Engineering, Hefei, 230601, China
| | - Zhenkun Chen
- Key Laboratory Environment-Friendly Polymer Materials of Anhui Province, School of Chemistry and Chemical Engineering, Hefei, 230601, China
| | - Xiaomin Cheng
- Key Laboratory Environment-Friendly Polymer Materials of Anhui Province, School of Chemistry and Chemical Engineering, Hefei, 230601, China.
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27
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Lakhera S, Devlal K, Rana M, Dhuliya V. Influence of the substitution of different functional groups on the gas sensing and light harvesting efficiency of zero-dimensional coronene quantum dot: A first principle DFT study. Spectrochim Acta A Mol Biomol Spectrosc 2024; 308:123737. [PMID: 38064960 DOI: 10.1016/j.saa.2023.123737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 12/01/2023] [Accepted: 12/03/2023] [Indexed: 01/13/2024]
Abstract
The present study accounts for the structural and electronic properties of a zero-dimensional coronene quantum dot (QD) and its substituted structures with seven different functional groups. The substitution of functional groups lead to the alteration of the centrosymmetric geometry of the coronene flake and thus, incredible properties were observed for the functionalized QDs. The increment in the band gap after the substitution of the functional groups was responsible for the increase in the chemical stability. The cohesive energy however decreased for the functional QDs. Fourier transform Infrared spectra were traced for all the QDs to confirm the availability of the functional groups and their participation in the chemical reactivity. After the substitution of functional groups, the extremely enhanced light harvesting efficiency of functionalized QDs was obtained. Furthermore, the sensing capability of the functionalized QDs for CO, CO2, and NH3 was also calculated and it was found that C-cyano, C-nitro, C-nitroso, C-pyrrolidine, and C-thionyl QDs have better sensing capabilities for CO2 molecules. C-pyrrolidine had the highest value of light harvesting efficiency of about 96%. This reflects the potential photosensitive candidature of C-pyrrolidine. Therefore, the present study sets a perfect benchmark for designing and fabricating efficient photosensitive materials and gas-sensing devices using the introduced QDs in the near future.
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Affiliation(s)
- Shradha Lakhera
- Department of Physics, School of Sciences, Uttarakhand Open University, Haldwani 263139, Uttarakhand, India
| | - Kamal Devlal
- Department of Physics, School of Sciences, Uttarakhand Open University, Haldwani 263139, Uttarakhand, India
| | - Meenakshi Rana
- Department of Physics, School of Sciences, Uttarakhand Open University, Haldwani 263139, Uttarakhand, India.
| | - Vivek Dhuliya
- Department of Physics, Gurukula Kangri (Deemed to be University), Haridwar 249404, Uttarakhand, India
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28
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Panghal A, Flora SJS. Nanotechnology in the diagnostic and therapy for Alzheimer's disease. Biochim Biophys Acta Gen Subj 2024; 1868:130559. [PMID: 38191034 DOI: 10.1016/j.bbagen.2024.130559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 12/21/2023] [Accepted: 01/04/2024] [Indexed: 01/10/2024]
Abstract
Alzheimer's disease (AD) is a neurodegenerative disorder primarily characterized by β-amyloid plaque, intraneuronal tangles, significant neuronal loss and cognitive deficit. Treatment in the early stages of the disease is crucial for preventing or perhaps reversing the neurodegeneration in the AD cases. However, none of the current diagnostic procedures are capable of early diagnosis of AD. Further, the available treatments merely provide symptomatic alleviation in AD and do not address the underlying illness. Therefore, there is no permanent cure for AD currently. Better therapeutic outcomes need the optimum drug concentration in the central nervous system (CNS) by traversing blood-brain-barrier (BBB). Nanotechnology offers enormous promise to transform the treatment and diagnostics of neurodegenerative diseases. Nanotechnology based diagnostic tools, drug delivery systems and theragnostic are capable of highly sensitive molecular detection, effective drug targeting and their combination. Significant work has been done in this area over the last decade and prospective results have been obtained in AD therapy. This review explores the various applications of nanotechnology in addressing the varied facets of AD, ranging from early detection to therapeutic interventions. This review also looks at how nanotechnology can help with the development of disease-modifying medicines, such as the delivery of anti-amyloid, anti-tau, cholinesterase inhibitors, antioxidants and hormonal drugs. In conclusion, this paper discusses the role of nanotechnology in the early detection of AD, effective drug targeting to the CNS and theragnostic applications in the management of AD.
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Affiliation(s)
- Archna Panghal
- National Institute of Pharmaceutical Education and Research, SAS Nagar, Mohali, Panjab 160012, India
| | - S J S Flora
- National Institute of Pharmaceutical Education and Research, SAS Nagar, Mohali, Panjab 160012, India; Institute of Pharmaceutical Sciences, Era Medical University, Safarajganj, Lucknow 226003, U.P., India.
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29
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Cao J, Jiang H, Wu Y, Yu X. Visual detection of H 2O 2 and glucose by HBcAb-HRP fluorescence-enhanced CdTe QDs/CDs ratiometric fluorescence sensing platform. Colloids Surf B Biointerfaces 2024; 235:113774. [PMID: 38309154 DOI: 10.1016/j.colsurfb.2024.113774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Revised: 01/18/2024] [Accepted: 01/29/2024] [Indexed: 02/05/2024]
Abstract
This study presents the development of a sensitive and simple enhanced ratiometric fluorescence sensing platform in the consist of CdTe quantum dots (QDs), carbon dots (CDs), and hepatitis B core antibody labeled with horseradish peroxidase (HBcAb-HRP) for the visual analysis of H2O2 and glucose. The sulfur atoms in HBcAb-HRP have a strong affinity for Cd(II), which effectively enhances the fluorescence intensity of the CdTe QDs due to the generation of more radiative centers at the CdTe/Cd-SR complex. In the presence of H2O2, the Cd-S bonds are oxidized to form disulfide products and results in linear fluorescence quenching, while CDs maintain stable. Becasue glucose can be converted into H2O2 with the aid of glucose oxidase, this sensing platform can also be used for analyzing glucose. The detection limits for H2O2 and glucose are 2.9 μmol L-1 with RSD of 2.6% and 1.6 μmol L-1 with RSD of 2.4% respectively. In addition, under UV lamp irradiation, the orange-yellow CdTe QDs gradually quench with increasing H2O2 and glucose, while the blue CDs remain unchanged. A color change from orange-yellow to blue enables a visual semi-quantitative determination of H2O2 in commercial contact lens solution and glucose in human serum without any pretreatment. Thus, this CdTe QDs/CDs ratiometric sensing platform has significant potential for the rapid analysis of H2O2 and glucose in actual application.
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Affiliation(s)
- Jie Cao
- Hubei Collaborative Innovation Center for Rare Metal Chemistry, Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Chemical Engineering, Hubei Normal University, Huangshi 435002, China
| | - Han Jiang
- Hubei Collaborative Innovation Center for Rare Metal Chemistry, Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Chemical Engineering, Hubei Normal University, Huangshi 435002, China
| | - Yiwei Wu
- Hubei Collaborative Innovation Center for Rare Metal Chemistry, Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Chemical Engineering, Hubei Normal University, Huangshi 435002, China
| | - Xiaoxiao Yu
- Hubei Collaborative Innovation Center for Rare Metal Chemistry, Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Chemical Engineering, Hubei Normal University, Huangshi 435002, China.
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30
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Zhang T, Huang C, Jiao Y, Shao L, Jiang D, Li F, Li W, Gao X. ICP-MS and fluorescence dual-mode detection of ZIKV-RNA based on quantum dot labeling with hybridization chain reaction. Talanta 2024; 269:125463. [PMID: 38016323 DOI: 10.1016/j.talanta.2023.125463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 10/04/2023] [Accepted: 11/21/2023] [Indexed: 11/30/2023]
Abstract
The detection of Zika virus (ZIKV) is of great significance to human life and health. Herein, we presented an ICP-MS and fluorescent dual-mode sensor for quantitative analysis of Zika virus RNA fragments (ZIKV-RNA), which employed quantum dots (QDs) as signal tags and combined with hybridization chain reaction (HCR). The dual-mode sensor realized cross-checking of the analysis results and improved the assay accuracy. Firstly, the single-stranded DNA (ssDNA) was anchored on the surface of magnetic beads (MBs). Afterward, HCR was conducted with probe DNA-CdSe quantum dots conjugates (pDNA-QDs) and link DNA (lDNA), producing the MBs-ssDNA-[pDNA-QDs-lDNA]n conjugates. In the presence of target ZIKV-RNA, a strand displacement reaction occurred, leading to the dissociation of the [pDNA-QDs-lDNA]n labels from the conjugates into the solution. Finally, the signal intensity was detected using ICP-MS and fluorescence analysis, with achieved limits of detection of 131 pM and 152 pM, respectively. The inter-assay RSD values of fluorescence and ICP-MS were 3.94 % and 4.26 % at 10 nM level, respectively, showing that the method had good precision. This method showed high selectivity and was applied to the analysis of biological fluids. There was no significant difference between the results of ICP-MS modes and fluorescence mode. This method offers a new strategy for sensitivity analysis of ZIKV-RNA and exhibits promise in clinical applications for diagnosis.
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Affiliation(s)
- Tianran Zhang
- Shandong Academy of Preventive Medicine, Shandong Center for Food Safety Risk Assessment, Shandong Center for Disease Control and Prevention, Jinan, 250000, People's Republic of China; Department of Physical and Chemical Inspection, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, 250000, People's Republic of China; Yantai Center for Disease Control and Prevention, Yantai, 264000, People's Republic of China
| | - Chao Huang
- Department of Pharmacy, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, 250014, People's Republic of China
| | - Yanni Jiao
- Shandong Academy of Preventive Medicine, Shandong Center for Food Safety Risk Assessment, Shandong Center for Disease Control and Prevention, Jinan, 250000, People's Republic of China; Department of Physical and Chemical Inspection, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, 250000, People's Republic of China
| | - Lijun Shao
- Shandong Academy of Preventive Medicine, Shandong Center for Food Safety Risk Assessment, Shandong Center for Disease Control and Prevention, Jinan, 250000, People's Republic of China
| | - Dafeng Jiang
- Shandong Academy of Preventive Medicine, Shandong Center for Food Safety Risk Assessment, Shandong Center for Disease Control and Prevention, Jinan, 250000, People's Republic of China; Department of Physical and Chemical Inspection, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, 250000, People's Republic of China.
| | - Fenghua Li
- Shandong Academy of Preventive Medicine, Shandong Center for Food Safety Risk Assessment, Shandong Center for Disease Control and Prevention, Jinan, 250000, People's Republic of China
| | - Wei Li
- Shandong Academy of Preventive Medicine, Shandong Center for Food Safety Risk Assessment, Shandong Center for Disease Control and Prevention, Jinan, 250000, People's Republic of China
| | - Xibao Gao
- Department of Physical and Chemical Inspection, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, 250000, People's Republic of China.
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31
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Jednorski A, Acar O, Shih WY, Shih WH. PEGylation of NIR Cd0.3Pb0.7S aqueous quantum dots for stabilization and reduction of nonspecific binding to cells. Biomed Mater 2024. [PMID: 38417150 DOI: 10.1088/1748-605x/ad2e0e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2024]
Abstract
Cd0.3Pb0.7S (CdPbS) aqueous quantum dots (AQDs) made with 3-mercaptoproprionic acid (MPA) as a ligand have the advantages of emitting near infrared (NIR) light, well above 800 nm, that completely circumvents interference from tissue autofluorescence and have significant amounts of ligands for bioconjugation. However, retaining the right amount of MPA became a challenge when using CdPbS AQDs for bioimaging because retaining too much MPA could lead to significant nonspecific staining in cell imaging while insufficient MPA could cause AQDs instability in biological systems. Here we examined PEGylation (i.e., chemically linking aminefunctionalized polyethylene glycol (PEG)) to modify MPA on the AQDs surface to improve AQDs stability and reduce nonspecific staining. In addition, for conjugation with antibodies, a bifunctional PEG with a carboxyl functionality was used to permit chemical linkage of a PEG to an antibody on the other end. It was found that performing PEGylation at the thiol concentration where the zeta potential becomes saturated stabilized the CdPbS AQDs suspension and reduced nonspecific binding to cells. Furthermore, with the bifunctional PEG, the CdPbS AQDs were conjugated with antibodies and the AQD-Ab conjugates were shown to stain cancer cells specifically against normal cells with a signal-to-noise ratio of 8.
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Affiliation(s)
- Alexandra Jednorski
- Drexel University, School of Biomedical Engineering, Science, and Health Systems, Drexel University, Philadelphia, Philadelphia, 19104-2816, UNITED STATES
| | - Ozgun Acar
- Drexel University College of Engineering, Department of Materials Science and Engineering, Drexel University, Philadelphia, Philadelphia, Pennsylvania, 19104, UNITED STATES
| | - Wan Y Shih
- School of Biomedical Engineering, Science, and Health Systems, Drexel University, 3141 Chestnut Street, Philadelphia, PA 19104, USA, Philadelphia, Pennsylvania, 19104-2816, UNITED STATES
| | - Wei-Heng Shih
- Department of Materials Science and Engineering, Drexel University, 31st and Market Street, Philadelphia, PA 19104, USA, Philadelphia, Pennsylvania, 19104, UNITED STATES
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Valenzuela-Ibaceta F, Torres-Olea N, Ramos-Zúñiga J, Dietz-Vargas C, Navarro CA, Pérez-Donoso JM. Minicells as an Escherichia coli mechanism for the accumulation and disposal of fluorescent cadmium sulphide nanoparticles. J Nanobiotechnology 2024; 22:78. [PMID: 38414055 PMCID: PMC10900627 DOI: 10.1186/s12951-024-02348-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Accepted: 02/18/2024] [Indexed: 02/29/2024] Open
Abstract
BACKGROUND Bacterial biosynthesis of fluorescent nanoparticles or quantum dots (QDs) has emerged as a unique mechanism for heavy metal tolerance. However, the physiological pathways governing the removal of QDs from bacterial cells remains elusive. This study investigates the role of minicells, previously identified as a means of eliminating damaged proteins and enhancing bacterial resistance to stress. Building on our prior work, which unveiled the formation of minicells during cadmium QDs biosynthesis in Escherichia coli, we hypothesize that minicells serve as a mechanism for the accumulation and detoxification of QDs in bacterial cells. RESULTS Intracellular biosynthesis of CdS QDs was performed in E. coli mutants ΔminC and ΔminCDE, known for their minicell-producing capabilities. Fluorescence microscopy analysis demonstrated that the generated minicells exhibited fluorescence emission, indicative of QD loading. Transmission electron microscopy (TEM) confirmed the presence of nanoparticles in minicells, while energy dispersive spectroscopy (EDS) revealed the coexistence of cadmium and sulfur. Cadmium quantification through flame atomic absorption spectrometry (FAAS) demonstrated that minicells accumulated a higher cadmium content compared to rod cells. Moreover, fluorescence intensity analysis suggested that minicells accumulated a greater quantity of fluorescent nanoparticles, underscoring their efficacy in QD removal. Biosynthesis dynamics in minicell-producing strains indicated that biosynthesized QDs maintained high fluorescence intensity even during prolonged biosynthesis times, suggesting continuous QD clearance in minicells. CONCLUSIONS These findings support a model wherein E. coli utilizes minicells for the accumulation and removal of nanoparticles, highlighting their physiological role in eliminating harmful elements and maintaining cellular fitness. Additionally, this biosynthesis system presents an opportunity for generating minicell-coated nanoparticles with enhanced biocompatibility for diverse applications.
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Affiliation(s)
- Felipe Valenzuela-Ibaceta
- BioNanotechnology and Microbiology Laboratory, Center for Bioinformatics and Integrative Biology (CBIB), Facultad de Ciencias de la Vida, Universidad Andrés Bello, Av. República # 330, Santiago, Chile
| | - Nicolás Torres-Olea
- BioNanotechnology and Microbiology Laboratory, Center for Bioinformatics and Integrative Biology (CBIB), Facultad de Ciencias de la Vida, Universidad Andrés Bello, Av. República # 330, Santiago, Chile
| | - Javiera Ramos-Zúñiga
- BioNanotechnology and Microbiology Laboratory, Center for Bioinformatics and Integrative Biology (CBIB), Facultad de Ciencias de la Vida, Universidad Andrés Bello, Av. República # 330, Santiago, Chile
| | - Claudio Dietz-Vargas
- BioNanotechnology and Microbiology Laboratory, Center for Bioinformatics and Integrative Biology (CBIB), Facultad de Ciencias de la Vida, Universidad Andrés Bello, Av. República # 330, Santiago, Chile
| | - Claudio A Navarro
- BioNanotechnology and Microbiology Laboratory, Center for Bioinformatics and Integrative Biology (CBIB), Facultad de Ciencias de la Vida, Universidad Andrés Bello, Av. República # 330, Santiago, Chile
| | - José M Pérez-Donoso
- BioNanotechnology and Microbiology Laboratory, Center for Bioinformatics and Integrative Biology (CBIB), Facultad de Ciencias de la Vida, Universidad Andrés Bello, Av. República # 330, Santiago, Chile.
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Jacobse PH, Sarker M, Saxena A, Zahl P, Wang Z, Berger E, Aluru NR, Sinitskii A, Crommie MF. Tunable Magnetic Coupling in Graphene Nanoribbon Quantum Dots. Small 2024:e2400473. [PMID: 38412424 DOI: 10.1002/smll.202400473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Indexed: 02/29/2024]
Abstract
Carbon-based quantum dots (QDs) enable flexible manipulation of electronic behavior at the nanoscale, but controlling their magnetic properties requires atomically precise structural control. While magnetism is observed in organic molecules and graphene nanoribbons (GNRs), GNR precursors enabling bottom-up fabrication of QDs with various spin ground states have not yet been reported. Here the development of a new GNR precursor that results in magnetic QD structures embedded in semiconducting GNRs is reported. Inserting one such molecule into the GNR backbone and graphitizing it results in a QD region hosting one unpaired electron. QDs composed of two precursor molecules exhibit nonmagnetic, antiferromagnetic, or antiferromagnetic ground states, depending on the structural details that determine the coupling behavior of the spins originating from each molecule. The synthesis of these QDs and the emergence of localized states are demonstrated through high-resolution atomic force microscopy (HR-AFM), scanning tunneling microscopy (STM) imaging, and spectroscopy, and the relationship between QD atomic structure and magnetic properties is uncovered. GNR QDs provide a useful platform for controlling the spin-degree of freedom in carbon-based nanostructures.
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Affiliation(s)
- Peter H Jacobse
- Department of Physics, University of California, Berkeley, Berkeley, CA, 94720, USA
| | - Mamun Sarker
- Department of Chemistry, University of Nebraska, Lincoln, NE, 68588, USA
- Nebraska Center for Materials and Nanoscience, University of Nebraska-Lincoln, Lincoln, NE, 68588, USA
| | - Anshul Saxena
- Walker Department of Mechanical Engineering, University of Texas, Austin, TX, 78712, USA
- Oden Institute for Computational Engineering and Sciences, University of Texas at Austin, Austin, TX, 78712, USA
| | - Percy Zahl
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY, 11973, USA
| | - Ziyi Wang
- Department of Physics, University of California, Berkeley, Berkeley, CA, 94720, USA
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
- Kavli Energy NanoSciences Institute at the University of California Berkeley and the Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Emma Berger
- Department of Physics, University of California, Berkeley, Berkeley, CA, 94720, USA
| | - Narayana R Aluru
- Walker Department of Mechanical Engineering, University of Texas, Austin, TX, 78712, USA
- Oden Institute for Computational Engineering and Sciences, University of Texas at Austin, Austin, TX, 78712, USA
| | - Alexander Sinitskii
- Department of Chemistry, University of Nebraska, Lincoln, NE, 68588, USA
- Nebraska Center for Materials and Nanoscience, University of Nebraska-Lincoln, Lincoln, NE, 68588, USA
| | - Michael F Crommie
- Department of Physics, University of California, Berkeley, Berkeley, CA, 94720, USA
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
- Kavli Energy NanoSciences Institute at the University of California Berkeley and the Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
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Udaypal, Goswami RK, Mehariya S, Verma P. Advances in microalgae-based carbon sequestration: Current status and future perspectives. Environ Res 2024; 249:118397. [PMID: 38309563 DOI: 10.1016/j.envres.2024.118397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 01/02/2024] [Accepted: 01/30/2024] [Indexed: 02/05/2024]
Abstract
The advancement in carbon dioxide (CO2) sequestration technology has received significant attention due to the adverse effects of CO2 on climate. The mitigation of the adverse effects of CO2 can be accomplished through its conversion into useful products or renewable fuels. In this regard, microalgae is a promising candidate due to its high photosynthesis efficiency, sustainability, and eco-friendly nature. Microalgae utilizes CO2 in the process of photosynthesis and generates biomass that can be utilized to produce various valuable products such as supplements, chemicals, cosmetics, biofuels, and other value-added products. However, at present microalgae cultivation is still restricted to producing value-added products due to high cultivation costs and lower CO2 sequestration efficiency of algal strains. Therefore, it is very crucial to develop novel techniques that can be cost-effective and enhance microalgal carbon sequestration efficiency. The main aim of the present manuscript is to explain how to optimize microalgal CO2 sequestration, integrate valuable product generation, and explore novel techniques like genetic manipulations, phytohormones, quantum dots, and AI tools to enhance the efficiency of CO2 sequestration. Additionally, this review provides an overview of the mass flow of different microalgae and their biorefinery, life cycle assessment (LCA) for achieving net-zero CO2 emissions, and the advantages, challenges, and future perspectives of current technologies. All of the reviewed approaches efficiently enhance microalgal CO2 sequestration and integrate value-added compound production, creating a green and economically profitable process.
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Affiliation(s)
- Udaypal
- Bioprocess and Bioenergy Laboratory (BPBEL), Department of Microbiology, Central University of Rajasthan, Bandarsindri, Kishangarh, Ajmer, Rajasthan, 305817, India
| | - Rahul Kumar Goswami
- Bioprocess and Bioenergy Laboratory (BPBEL), Department of Microbiology, Central University of Rajasthan, Bandarsindri, Kishangarh, Ajmer, Rajasthan, 305817, India
| | - Sanjeet Mehariya
- Algal Technology Program, Center for Sustainable Development, College of Arts and Sciences, Qatar University, Doha, 2713, Qatar
| | - Pradeep Verma
- Bioprocess and Bioenergy Laboratory (BPBEL), Department of Microbiology, Central University of Rajasthan, Bandarsindri, Kishangarh, Ajmer, Rajasthan, 305817, India.
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Gu J, Han T, Peng X, Kang H, Dong L. Highly sensitive fluorescent probe and portable test strip based on polyacrylic acid functionalized quantum dots for rapid visual detection of malachite green. Talanta 2024; 268:125359. [PMID: 37952316 DOI: 10.1016/j.talanta.2023.125359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 10/15/2023] [Accepted: 10/26/2023] [Indexed: 11/14/2023]
Abstract
Malachite green (MG) has been banned in aquaculture by many countries due to its high carcinogenicity, high teratogenicity, and easy residue. However, it is cheap and efficient characteristics have made it difficult to eliminate in recent decades, so it is essential to develop a rapid and accurate detection method for MG. Here, a highly Sensitive fluorescent probe based on polyacrylic acid (PAA) functionalized CdSe/CdxZn1-xS quantum dots (QDs) was prepared for the determination of MG. QDs functionalized by PAA (QDs@PAA) were used as energy donors, and MG was used as energy acceptor to construct fluorescence resonance energy transfer (FRET) system. The fluorescence of QDs@PAA could be linearly quenched by MG in the range of 0.05 ⁓ 2 μM, and the detection limit was 0.011 μM. In addition, a small amount of QDs@PAA (30 μL) was printed on the solid substrate by inkjet printing technology to prepare fluorescent test strips. When the concentration of MG was 2 μM, the fluorescent test strips were quenched and the detection process could be completed within 10 s, demonstrating significant potential for rapid visual detection of MG.
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Affiliation(s)
- Jiashuai Gu
- Center for Smart Materials and Devices, State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Luoshi Road 122, Wuhan 430070, PR China
| | - Ting Han
- Center for Smart Materials and Devices, State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Luoshi Road 122, Wuhan 430070, PR China
| | - Xiangdong Peng
- Center for Smart Materials and Devices, State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Luoshi Road 122, Wuhan 430070, PR China
| | - Hong Kang
- Center for Smart Materials and Devices, State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Luoshi Road 122, Wuhan 430070, PR China
| | - Lijie Dong
- Center for Smart Materials and Devices, State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Luoshi Road 122, Wuhan 430070, PR China; Hainan Institute, Wuhan University of Technology, Sanya 572000, PR China.
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36
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Kim D, Yun T, An S, Lee CL. How to improve the structural stabilities of halide perovskite quantum dots: review of various strategies to enhance the structural stabilities of halide perovskite quantum dots. Nano Converg 2024; 11:4. [PMID: 38279984 PMCID: PMC10821855 DOI: 10.1186/s40580-024-00412-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Accepted: 01/08/2024] [Indexed: 01/29/2024]
Abstract
Halide perovskites have emerged as promising materials for various optoelectronic devices because of their excellent optical and electrical properties. In particular, halide perovskite quantum dots (PQDs) have garnered considerable attention as emissive materials for light-emitting diodes (LEDs) because of their higher color purities and photoluminescence quantum yields compared to conventional inorganic quantum dots (CdSe, ZnSe, ZnS, etc.). However, PQDs exhibit poor structural stabilities in response to external stimuli (moisture, heat, etc.) owing to their inherent ionic nature. This review presents recent research trends and insights into improving the structural stabilities of PQDs. In addition, the origins of the poor structural stabilities of PQDs and various methods to overcome this drawback are discussed. The structural degradation of PQDs is mainly caused by two mechanisms: (1) defect formation on the surface of the PQDs by ligand dissociation (i.e., detachment of weakly bound ligands from the surface of PQDs), and (2) vacancy formation by halide migration in the lattices of the PQDs due to the low migration energy of halide ions. The structural stabilities of PQDs can be improved through four methods: (1) ligand modification, (2) core-shell structure, (3) crosslinking, and (4) metal doping, all of which are presented in detail herein. This review provides a comprehensive understanding of the structural stabilities and opto-electrical properties of PQDs and is expected to contribute to future research on improving the device performance of perovskite quantum dot LEDs (PeLEDs).
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Affiliation(s)
- Dokyum Kim
- Advanced Photonics Research Institute (APRI), Gwangju Institute of Science and Technology (GIST), Gwangju, 61005, Republic of Korea
| | - Taesun Yun
- Advanced Photonics Research Institute (APRI), Gwangju Institute of Science and Technology (GIST), Gwangju, 61005, Republic of Korea
- Department of Physics, Research Institute of Physics and Chemistry, Jeonbuk National University, Jeonju, 54896, Republic of Korea
| | - Sangmin An
- Department of Physics, Research Institute of Physics and Chemistry, Jeonbuk National University, Jeonju, 54896, Republic of Korea
| | - Chang-Lyoul Lee
- Advanced Photonics Research Institute (APRI), Gwangju Institute of Science and Technology (GIST), Gwangju, 61005, Republic of Korea.
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Mareka M, Matoetoe M, Tsolekile N. One-pot synthesis optimization of thiol-capped SnS and SnS/ZnS QDs for photocatalytic degradation of Rhodamine 6G. Heliyon 2024; 10:e24191. [PMID: 38234901 PMCID: PMC10792565 DOI: 10.1016/j.heliyon.2024.e24191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 12/29/2023] [Accepted: 01/04/2024] [Indexed: 01/19/2024] Open
Abstract
Interest in SnS-based quantum dots (QDs) has increased due to their low toxicity, widespread natural availability, and superior electro-optical characteristics suitable for photodegradation applications. Herein, we report the synthesis of SnS-based QDs using thiourea and tin (II)chloride as salt precursors. The study explored the impact of various synthetic parameters such as pH, capping ligand, Sn:S ratio, reaction solvent, and ZnS shell on the optical characteristics of the synthesized QDs. The optimal QDs properties were observed at pH = 3 and Sn:S ratio = 1:1. Transmission electron microscopy analysis showed spherical nanoparticles, while the Fourier Transform Infrared spectroscopy revealed QDs with thiol capping. Time-dependent studies revealed that when the QDs were synthesized using propylene glycol, the ultraviolet-visibile (UV-vis) spectrum exhibited an increase in absorbance over time and improved stability compared to aqueous synthesized QDs. SnS/ZnS QDs capped with 3-mercaptopropanoic acid exhibited improved photoluminscence (PL) emissions, stability, and aqueous dispersion compared to glutathione and l-Cysteine as thiol-capping agents. The photocatalytic activity of SnS/ZnS QDs was assessed against Rhodamine 6G and increased to 65 % when passivated with ZnS compared to 31 % for the core SnS QDs. With the given findings, this study supports the stability and effectiveness of the SnS/ZnS QDs as a viable dye degradant.
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Affiliation(s)
- Madillo Mareka
- Chemistry Department, Cape Peninsula University of Technology, PO Box 1906, Bellville, 7535, South Africa
| | - Mangaka Matoetoe
- Chemistry Department, Cape Peninsula University of Technology, PO Box 1906, Bellville, 7535, South Africa
| | - Ncediwe Tsolekile
- Chemistry Department, Cape Peninsula University of Technology, PO Box 1906, Bellville, 7535, South Africa
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Souza Junior JB, Mouriño B, Gehlen MH, Moraes DA, Bettini J, Varanda LC. Acid selenites as new selenium precursor for CdSe quantum dot synthesis. Heliyon 2024; 10:e23837. [PMID: 38205302 PMCID: PMC10777003 DOI: 10.1016/j.heliyon.2023.e23837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 11/30/2023] [Accepted: 12/13/2023] [Indexed: 01/12/2024] Open
Abstract
Chemical precursors for nanomaterials synthesis have become essential to tune particle size, composition, morphology, and unique properties. New inexpensive precursors investigation that precisely controls these characteristics is highly relevant. We studied new Se precursors, the acid selenites (R-O-SeOOH), to synthesize CdSe quantum dots (QDs). They were produced at room temperature by the Image 1 reaction with alcohols having different alkyl chains and were characterized by 1H NMR confirming their structures. This unprecedented precursor generates high-quality CdSe nanocrystals with narrow size distribution in the zinc-blend structure showing controlled optical properties. Advanced characterization detailed the CdSe structure showing stacking fault defects and its dependence on the used R-O-SeOOH. The QDs formation was examined using a time-dependent growth kinetics model. Differences in the nanoparticle surface structure influenced the optical properties, and they were correlated to the Se-precursor nature. Small alkyl chain acid selenites generally lead to more controlled QDs morphology, while the bigger alkyl chain leads to slightly upper quantum yields. Acid selenites can potentially replace Se-precursors at competitive costs in the metallic chalcogenide nanoparticles. Image 1 is chemically stable, and alcohols are cheap and less toxic than the reactants used today, making acid selenites a more sustainable Se precursor.
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Affiliation(s)
- João B. Souza Junior
- Colloidal Materials Group, Physical-Chemistry Department, Instituto de Química de São Carlos, Universidade de São Paulo, 13566-590, São Carlos - SP, Brazil
- Brazilian Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), 13083-970, Campinas - SP, Brazil
| | - Beatriz Mouriño
- Colloidal Materials Group, Physical-Chemistry Department, Instituto de Química de São Carlos, Universidade de São Paulo, 13566-590, São Carlos - SP, Brazil
| | - Marcelo H. Gehlen
- Colloidal Materials Group, Physical-Chemistry Department, Instituto de Química de São Carlos, Universidade de São Paulo, 13566-590, São Carlos - SP, Brazil
| | - Daniel A. Moraes
- Colloidal Materials Group, Physical-Chemistry Department, Instituto de Química de São Carlos, Universidade de São Paulo, 13566-590, São Carlos - SP, Brazil
- Brazilian Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), 13083-970, Campinas - SP, Brazil
| | - Jefferson Bettini
- Brazilian Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), 13083-970, Campinas - SP, Brazil
| | - Laudemir C. Varanda
- Colloidal Materials Group, Physical-Chemistry Department, Instituto de Química de São Carlos, Universidade de São Paulo, 13566-590, São Carlos - SP, Brazil
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Głowacz K, Drozd M, Tokarska W, Wezynfeld NE, Ciosek-Skibińska P. Quantum dots-based "chemical tongue" for the discrimination of short-length Aβ peptides. Mikrochim Acta 2024; 191:95. [PMID: 38224352 PMCID: PMC10789672 DOI: 10.1007/s00604-023-06115-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 12/05/2023] [Indexed: 01/16/2024]
Abstract
A "chemical tongue" is proposed based on thiomalic acid-capped quantum dots (QDs) with signal enrichment provided by excitation-emission matrix (EEM) fluorescence spectroscopy for the determination of close structural analogs-short-length amyloid β (Aβ) peptides related to Alzheimer's disease. Excellent discrimination is obtained by principal component analysis (PCA) for seven derivatives: Aβ1-16, Aβ4-16, Aβ4-9, Aβ5-16, Aβ5-12, Aβ5-9, Aβ12-16. Detection of Aβ4-16, Aβ4-16, and Aβ5-9 in binary and ternary mixtures performed by QDs-based chemical tongue using partial least squares-discriminant analysis (PLS-DA) provided perfect 100% accuracy for the two studied peptides (Aβ4-16 and Aβ4-16), while for the third one (Aβ5-9) it was slightly lower (97.9%). Successful detection of Aβ4-16 at 1 pmol/mL (1.6 ng/mL) suggests that the detection limit of the proposed method for short-length Aβ peptides can span nanomolar concentrations. This result is highly promising for the development of simple and efficient methods for sequence recognition in short-length peptides and better understanding of mechanisms at the QD-analyte interface.
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Affiliation(s)
- Klaudia Głowacz
- Chair of Medical Biotechnology, Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664, Warsaw, Poland.
| | - Marcin Drozd
- Chair of Medical Biotechnology, Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664, Warsaw, Poland
- Centre for Advanced Materials and Technologies CEZAMAT, Poleczki 19, 02-822, Warsaw, Poland
| | - Weronika Tokarska
- Chair of Medical Biotechnology, Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664, Warsaw, Poland
| | - Nina E Wezynfeld
- Chair of Medical Biotechnology, Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664, Warsaw, Poland
| | - Patrycja Ciosek-Skibińska
- Chair of Medical Biotechnology, Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664, Warsaw, Poland.
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Li P, Luo C, Chen X, Huang C. A novel "off-on" ratiometric fluorescent aptasensor for adenosine detection based on FRET between quantum dots and graphene oxide. Spectrochim Acta A Mol Biomol Spectrosc 2024; 305:123557. [PMID: 37866265 DOI: 10.1016/j.saa.2023.123557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 09/30/2023] [Accepted: 10/16/2023] [Indexed: 10/24/2023]
Abstract
A novel "off-on" ratiometric fluorescent aptasensor was established for adenosine detection based on fluorescence resonance energy transfer (FRET) between CdS QDs, DNA QDs as donor and graphene oxide (GO) as acceptor. Amino-riched DNA QDs covalently bonded to the carboxyl group on the edge of the GO, and with the absorption of the TGA-modified CdS QDs with aptamer (CdS QDs-apt) onto the GO surface via the π-π stacking interaction. The fluorescence of both CdS QDs and DNA QDs were efficiently quenched due to FRET (turn off). When adenosine was present, the specific binding of the aptamer to the target preferentially that released the CdS QDs-apt from GO. The process would inhibit the FRET which contribute to the fluorescence of CdS QDs-apt recovery again (turn on), while the fluorescence intensity of DNA QDs only slightly altered and acted as the reference signal. Thus, a novel "off-on" ratiometric fluorescent aptasensor for adenosine detection was constructed accordingly. There was a good linearity relationship between the ratio of the FL intensity (F595 nm/F464 nm) and the concentration of adenosine in the range of 20.00-180.0 nmol/L with a detection limit of 1.3 nmol/L (S/N = 3, n = 9). Importantly, the feasibility of the developed aptasensor for selective detection of adenosine in serum and urine samples with satisfactory results. The recoveries were observed to be 97.04-100.2 %.
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Affiliation(s)
- Pu Li
- College of Chemistry and Life Science, Zhejiang Normal University, Jinhua 321004, China
| | - Chen Luo
- College of Chemistry and Life Science, Zhejiang Normal University, Jinhua 321004, China
| | - Xiaoxiao Chen
- College of Chemistry and Life Science, Zhejiang Normal University, Jinhua 321004, China
| | - Chaobiao Huang
- Xingzhi College, Zhejiang Normal University, Lanxi 321100, China; College of Chemistry and Life Science, Zhejiang Normal University, Jinhua 321004, China.
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Wu R, Liu X, Wang X, Guo F, Wang S, Li B, Cheng LY, Miao X. Transient absorption study on fluorescence quenching of InP/ZnS quantum dots by MXene. Spectrochim Acta A Mol Biomol Spectrosc 2024; 304:123359. [PMID: 37690400 DOI: 10.1016/j.saa.2023.123359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 08/16/2023] [Accepted: 09/04/2023] [Indexed: 09/12/2023]
Abstract
Fluorescence quenching due to energy transfer from InP/ZnS quantum dots (QDs) to Ti3C2Tx MXene materials was investigated by the transient absorption spectroscopy. During the fluorescence quenching, the photo-induced absorption feature in the transient spectrum was blue-shifted due to the higher photon energy required for the upward transition. The lifetime of stimulated emission was gradually extended from 0.86 μs to 2.28 μs with increasing Ti3C2Tx MXene. The fluorescence quenching of QDs can be quantitatively characterized by analyzing the lifetime of the stimulated emission feature in the transient absorption spectrum, which was used as a Ti3C2Tx MXene detection with the sensitivity of 6.63 mL/mg. The results of this study provide the basis for the design of optical sensors.
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Affiliation(s)
- Ruixiang Wu
- Key Laboratory of Spectral Measurement and Analysis of Shanxi Province, College of Physics and Information Engineering, Shanxi Normal University, Taiyuan 030031, China.
| | - Xin Liu
- Key Laboratory of Spectral Measurement and Analysis of Shanxi Province, College of Physics and Information Engineering, Shanxi Normal University, Taiyuan 030031, China
| | - Xiaoshuai Wang
- Key Laboratory of Spectral Measurement and Analysis of Shanxi Province, College of Physics and Information Engineering, Shanxi Normal University, Taiyuan 030031, China
| | - Fengjie Guo
- Key Laboratory of Spectral Measurement and Analysis of Shanxi Province, College of Physics and Information Engineering, Shanxi Normal University, Taiyuan 030031, China
| | - Shengzhi Wang
- Key Laboratory of Spectral Measurement and Analysis of Shanxi Province, College of Physics and Information Engineering, Shanxi Normal University, Taiyuan 030031, China
| | - Bin Li
- Key Laboratory of Spectral Measurement and Analysis of Shanxi Province, College of Physics and Information Engineering, Shanxi Normal University, Taiyuan 030031, China
| | - Liu-Yong Cheng
- Key Laboratory of Spectral Measurement and Analysis of Shanxi Province, College of Physics and Information Engineering, Shanxi Normal University, Taiyuan 030031, China
| | - Xiangyang Miao
- Key Laboratory of Spectral Measurement and Analysis of Shanxi Province, College of Physics and Information Engineering, Shanxi Normal University, Taiyuan 030031, China.
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Wu X, Zhang X, Ma J, Zhang Y, Li M. A ratiometric fluorescence sensor based on the inner filtration effect of gold nanoparticles on quantum dots for monitoring dopamine. Spectrochim Acta A Mol Biomol Spectrosc 2024; 304:123374. [PMID: 37699327 DOI: 10.1016/j.saa.2023.123374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 09/04/2023] [Accepted: 09/06/2023] [Indexed: 09/14/2023]
Abstract
In this study, a smart phone assisted ratiometric fluorescence sensor was designed for detecting dopamine (DA). The ratiometric fluorescence sensor was prepared by simple physical mixing green quantum dots (GQDS) and red quantum dots (RQDS). DA could induce gold nanoparticles (AuNPs) aggregate via hydrogen-bonding interactions, and further changed the absorption spectrum of gold nanoparticles to overlap with a certain emission spectrum of ratiometric fluorescence sensor. AuNPs had inner filtration effect (IFE) on the ratiometric fluorescence sensor. Due to the IFE, the dispersive AuNPs could quench GQDS, whereas the clustered AuNPs could quench RQDS. With the addition of DA, the color of ratiometric fluorescence changed from orange red to green. To simplify the detection process, a smartphone was employed to detecting DA in human urine by measuring RGB value of fluorescence color changes with a detection limit of 86 nM. This proposed method has the advantages of low cost, easy prevalence and simple operation, thus provides a great promise for rapid detection of biomarker in biological samples.
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Affiliation(s)
- Xia Wu
- College of Science, Hebei Agricultural University, Baoding, Hebei 071001, PR China
| | - Xi Zhang
- College of Science, Hebei Agricultural University, Baoding, Hebei 071001, PR China
| | - Jianbo Ma
- Jinan Special Equipment Inspection and Research, Jinan, Shandong 250101, PR China
| | - Yunyi Zhang
- College of Science, Hebei Agricultural University, Baoding, Hebei 071001, PR China
| | - Ming Li
- College of Science, Hebei Agricultural University, Baoding, Hebei 071001, PR China; Hebei Bioinformatic Utilization and Technological Innovation Center for Agricultural Microbes, Hebei Agricultural University, Baoding, Hebei 071001, PR China.
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Uthman A, AL-Rawi N, Saeed MH, Eid B, Al-Rawi NH. Tunable theranostics: innovative strategies in combating oral cancer. PeerJ 2024; 12:e16732. [PMID: 38188167 PMCID: PMC10771769 DOI: 10.7717/peerj.16732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 12/06/2023] [Indexed: 01/09/2024] Open
Abstract
Objective This study aims to assess and compare the potential of advanced nano/micro delivery systems, including quantum dots, carbon nanotubes, magnetic nanoparticles, dendrimers, and microneedles, as theranostic platforms for oral cancer. Furthermore, we seek to evaluate their respective advantages and disadvantages over the past decade. Materials and Methods A comprehensive literature search was performed using Google Scholar and PubMed, with a focus on articles published between 2013 and 2023. Search queries included the specific advanced delivery system as the primary term, followed by oral cancer as the secondary term (e.g., "quantum dots AND oral cancer," etc.). Results The advanced delivery platforms exhibited notable diagnostic and therapeutic advantages when compared to conventional techniques or control groups. These benefits encompassed improved tumor detection and visualization, enhanced precision in targeting tumors with reduced harm to neighboring tissues, and improved drug solubility and distribution, leading to enhanced drug absorption and tumor uptake. Conclusion The findings suggest that advanced nano/micro delivery platforms hold promise for addressing numerous challenges associated with chemotherapy. By enabling precise targeting of cancerous cells, these platforms have the potential to mitigate adverse effects on surrounding healthy tissues, thus encouraging the development of innovative diagnostic and therapeutic strategies for oral cancer.
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Affiliation(s)
- Asmaa Uthman
- Department of Diagnostic and Surgical Dental Sciences, College of Dentistry, Gulf Medical University, Ajman, United Arab Emirates
| | - Noor AL-Rawi
- Department of Pharmaceutics and Pharmaceutical Technology, University of Sharjah, Sharjah, United Arab Emirates
| | - Musab Hamed Saeed
- Department of Clinical Sciences, College of Dentistry, Ajman University, Ajman, United Arab Emirates
- Ajman University, Centre of Medical and Bio-allied Health Sciences Research,, Ajman, United Arab Emirates
| | - Bassem Eid
- Department of Restorative Dental Sciences, College of Dentistry, Gulf Medical University, Ajman, Ajman, United Arab Emirates
| | - Natheer H. Al-Rawi
- University of Sharjah, Sharjah Institute of Medical Research, Sharjah, United Arab Emirates
- Department of Oral and Craniofacial Health Sciences, College of Dental Medicine, University of Sharjah, Sharjah, United Arab Emirates
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Guo L, Yang L, Ren Y, Cui S, Li X, Wang J, Lan J, Lu H, Wang Y. The response and anti-stress mechanisms of nitrifying sludge under long-term exposure to CdSe quantum dots. J Environ Sci (China) 2024; 135:174-184. [PMID: 37778793 DOI: 10.1016/j.jes.2022.11.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 11/18/2022] [Accepted: 11/22/2022] [Indexed: 10/03/2023]
Abstract
The wide application of CdSe quantum dots (QDs) increases its stress risk to sewage treatment systems. This study evaluated the response of nitrification performance, floc characteristics and microbial community of nitrifying sludge under long-term exposure to CdSe QDs. Results showed CdSe QDs (≥1 mg/L) would decrease the activity of ammonia monooxygenase (AMO). Under the stress of 30 mg/L CdSe QDs, the activity of AMO was reduced by 66%, while the activities of hydroxylamine oxidase and nitrite oxidoreductase were enhanced by 19.1% and 26%, respectively. Thus, the final nitrification effects were not adversely affected, and the production rates of NO2--N and NO3--N were accelerated. Additionally, CdSe QDs improved biomass concentration in sludge and maintained the stability of sludge settleability. High throughput sequencing analysis showed that CdSe QDs evidently reduced the abundance and diversity of microbial community in nitrifying sludge. The abundances of amino acid metabolism and lipid metabolism were enriched. Moreover, CdSe QDs decreased the fluorescence intensity of tryptophan-like protein from 2,326 to 1,179 a.u. in loosely bound extracellular polymeric substances (EPSs) and from 3,792 to 3,117 a.u. in tightly bound EPSs. To relieve CdSe QD stress, the polysaccharide content increased from 0.31 to 0.61 mg/g MLSS and intracellular antioxidant defense was activated. With CdSe QD level increasing to 30 mg/L, the total antioxygenic capacity and the activities of catalase were enhanced up to 411% and 143.2%, respectively. Thereby, CdSe QDs had little adverse effects on cell membrane integrity, microbial metabolism and the abundance of Nitrospirae.
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Affiliation(s)
- Linkai Guo
- Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Key Lab of Northwest Water Resource, Environment and Ecology, Ministry of Education, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Lei Yang
- Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Key Lab of Northwest Water Resource, Environment and Ecology, Ministry of Education, Xi'an University of Architecture and Technology, Xi'an 710055, China.
| | - Yongxiang Ren
- Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Key Lab of Northwest Water Resource, Environment and Ecology, Ministry of Education, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Shen Cui
- Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Key Lab of Northwest Water Resource, Environment and Ecology, Ministry of Education, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Xiaotong Li
- Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Key Lab of Northwest Water Resource, Environment and Ecology, Ministry of Education, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Jia Wang
- Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Key Lab of Northwest Water Resource, Environment and Ecology, Ministry of Education, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Jun Lan
- Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Key Lab of Northwest Water Resource, Environment and Ecology, Ministry of Education, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Haoqi Lu
- Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Key Lab of Northwest Water Resource, Environment and Ecology, Ministry of Education, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Yuchao Wang
- Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Key Lab of Northwest Water Resource, Environment and Ecology, Ministry of Education, Xi'an University of Architecture and Technology, Xi'an 710055, China
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Xu H, Liang N, Cui L, Zhang H, Yang B, Jin Z. Synergistic effect of interface and defect engineering of MoC/MoO 2 nano dot encapsulated N-doped carbon nanoflowers for highly durable dye-sensitized solar cells. J Colloid Interface Sci 2024; 653:1620-1629. [PMID: 37812838 DOI: 10.1016/j.jcis.2023.10.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 09/12/2023] [Accepted: 10/02/2023] [Indexed: 10/11/2023]
Abstract
The design and fabrication of advanced counter electrodes (CEs) for dye-sensitized solar cells (DSSCs) are limited by the scarcity of active sites and poor durability. Herein, we report the controlled preparation of a heterostructured nanoreactor CE based on defect-rich N-doped carbon nanoflowers (NCF) encapsulating MoC/MoO2 nano dots (NDs) in a well-defined heterophase (MoC/MoO2-NCF). The MoC/MoO2 NDs were uniformly dispersed on the NCF, and the NCF limited the size of the MoC/MoO2 NDs and prevented their agglomeration, thus maximizing the electrochemically active surface area of MoC/MoO2. Moreover, the synergistic effect between the MoC/MoO2 interface and the N-defects is conducive to the full exposure of the active sites. Furthermore, theoretical calculations revealed that the MoC/MoO2 heterojunction played a unique role in modulating the electronic structure and regulating the adsorption energy of tri-iodide in the iodide reduction reaction. The MoC/MoO2-NCF CEs in DSSCs demonstrated a power conversion efficiency (PCE) of 9.92% and high durability, exceeding the PCE (8.36%) and durability of Pt CEs. Overall, this study offers insights into the controlled synthesis of high-performance Mo-based composite CE materials for DSSCs.
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Affiliation(s)
- Haifeng Xu
- School of Information Engineering, Suzhou University, Suzhou 234000, PR China.
| | - Nannan Liang
- School of Information Engineering, Suzhou University, Suzhou 234000, PR China
| | - Lin Cui
- School of Information Engineering, Suzhou University, Suzhou 234000, PR China
| | - Haining Zhang
- School of Information Engineering, Suzhou University, Suzhou 234000, PR China
| | - Bo Yang
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, School of Physics and Electronic Information, Huaibei Normal University, Huaibei 235000, PR China
| | - Zhong Jin
- State Key Laboratory of Coordination Chemistry, MOE Key Laboratory of Mesoscopic Chemistry, MOE Key Laboratory of High Performance Polymer, Materials and Technology, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210023, PR China.
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Sharaf SS, Lekshmi A, S A, K G A, Jyothi S P A, Chandrasekharan A, Somanathan T, Santhosh Kumar TR, K S. A multiplex immunoprofiling approach for detecting the co-localization of breast cancer biomarkers using a combination of Alexafluor - Quantum dot conjugates and a panel of chromogenic dyes. Pathol Res Pract 2024; 253:155033. [PMID: 38134837 DOI: 10.1016/j.prp.2023.155033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 12/02/2023] [Accepted: 12/08/2023] [Indexed: 12/24/2023]
Abstract
There is a plethora of information embedded in a tissue section that the conventional IHC understands only partially. Predictive biomarkers for precision immuno-oncology heavily dependent on the spatial arrangement of cells and the co-expression patterns in the tissue sections. Here we have explored the versatility of indirect multiplex immunofluorescence (mIF) and indirect multiplex immunohistochemistry (mIHC) for the labeling of breast cancer prognostic markers in routinely processed, formalin-fixed paraffin-embedded (FFPE) tissues at high resolution. The multiplex immunohistochemistry protocol utilized sequential staining for the chromogenic immunolabelling of Estrogen Receptor α (ERα) or Progesterone Receptor (PR), Human Epidermal Growth Factor Receptor 2 (HER2), and Nucleoside diphosphate kinase 1 (NM23) by multicolor chromogens in different combinations. A feasible workflow for multiplex immunofluorescence was also effectively standardized for ERα, PR, and HER2 using combinations of commercially available Alexa Fluor and Quantum dots semiconductor nanocrystal conjugated secondary antibodies. Multiplex chromogenic immunolabeling revealed differential expression of the markers on the same slide. Kappa statistics revealed perfect agreement with uniplex immunohistochemistry. For multiplex fluorescence approach, surface receptor detection using Quantum dots and Alexa fluor dyes for cytoplasmic or nuclear markers performed well for profiling multiple co-localized biomarkers on a single paraffin tissue section. The technique developed reveals additional information such as co-expression, spatial relationships, and tumor heterogeneity, providing a deeper insight into developing combinatorial therapeutic strategies in clinical care. This high throughput workflow complements the outcomes of traditional IHC while saving tissue, time, labour, and reagents.
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Affiliation(s)
- Shanaz S Sharaf
- Laboratory of Molecular Cytopathology and Proteomics, Division of Cancer Research, Regional Cancer Centre, Thiruvananthapuram, Kerala, India
| | - Asha Lekshmi
- Laboratory of Molecular Cytopathology and Proteomics, Division of Cancer Research, Regional Cancer Centre, Thiruvananthapuram, Kerala, India
| | - Aswathy S
- Cancer Research program 1, Rajiv Gandhi Centre for Biotechnology, Akkulam, Thiruvananthapuram, Kerala, India
| | - Anurup K G
- Cancer Research program 1, Rajiv Gandhi Centre for Biotechnology, Akkulam, Thiruvananthapuram, Kerala, India
| | - Arun Jyothi S P
- Cancer Research program 1, Rajiv Gandhi Centre for Biotechnology, Akkulam, Thiruvananthapuram, Kerala, India
| | - Aneesh Chandrasekharan
- Cancer Research program 1, Rajiv Gandhi Centre for Biotechnology, Akkulam, Thiruvananthapuram, Kerala, India
| | - Thara Somanathan
- Division of Pathology, Regional Cancer Centre, Thiruvananthapuram, Kerala, India
| | - T R Santhosh Kumar
- Cancer Research program 1, Rajiv Gandhi Centre for Biotechnology, Akkulam, Thiruvananthapuram, Kerala, India.
| | - Sujathan K
- Laboratory of Molecular Cytopathology and Proteomics, Division of Cancer Research, Regional Cancer Centre, Thiruvananthapuram, Kerala, India.
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Zahed Z, Hadi R, Imanzadeh G, Ahmadian Z, Shafiei S, Zadeh AZ, Karimi H, Akbarzadeh A, Abbaszadeh M, Ghadimi LS, Kafil HS, Kazeminava F. Recent advances in fluorescence nanoparticles " quantum dots" as gene delivery system: A review. Int J Biol Macromol 2024; 254:127802. [PMID: 37918598 DOI: 10.1016/j.ijbiomac.2023.127802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 10/06/2023] [Accepted: 10/29/2023] [Indexed: 11/04/2023]
Abstract
Biomaterial scientists have recently focused their attention on evaluating various aspects of delivering genetic materials into cells to induce a cellular response. The process involves complexing negatively charged plasmids, followed by delivering the resulting package into cells, a process facilitated by lipids, peptides, viruses, synthetically modified cationic polymers, and specific inorganic nanomaterials. In the context of gene delivery for specific imaging in biological and biomedical applications, fluorescence nanocrystals or quantum dots (QDs) present promising candidates as engineered nanoparticles (NPs). This literature review study aims to investigate the potential of QDs as a novel tool for gene delivery to retinal cells. The proficiency of QDs in this context arises from their unique physicochemical characteristics, including optical electronic and catalytic properties, which render them viable options for biosensing imaging, drug delivery, and gene delivery applications. In the field of gene delivery to the retinal cells, factors such as photoluminescence, quantum yield, biocompatibility, size, and shape play crucial roles in the utilization of QDs. In this paper, we discuss the most appropriate credentials and briefly outline the findings, supported by relevant illustrative samples, to explore the delivery of genetic material utilizing QDs.
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Affiliation(s)
- Zahra Zahed
- Department of Medical Sciences, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Raha Hadi
- Department of Chemistry, Faculty of Basic Science, University of Mohaghegh Ardabili, Ardabil, Iran
| | - Gholamhassan Imanzadeh
- Department of Chemistry, Faculty of Basic Science, University of Mohaghegh Ardabili, Ardabil, Iran
| | - Zainab Ahmadian
- Department of Pharmaceutics, School of Pharmacy, Lorestan University of Medical Sciences, Khorramabad, Iran
| | | | | | - Hanie Karimi
- School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Mahmoud Abbaszadeh
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Laleh Saleh Ghadimi
- Department of Electrical and Computer Engineering, Queen's University, Kingston, Ontario K7L 3N6, Canada
| | - Hossein Samadi Kafil
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Fahimeh Kazeminava
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
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Xu Z, Xu H, Duan H, Li J, Hu X, Jiang K, Wang G, Zhang Y. Smartphone-Aided Fluorescence Detection of Cardiac Biomarker Myoglobin by a Ratiometric Fluorescent AuNCs-QDs Nanohybrids Probe with High Sensitivity. J Fluoresc 2024; 34:179-190. [PMID: 37166611 DOI: 10.1007/s10895-023-03246-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 04/14/2023] [Indexed: 05/12/2023]
Abstract
Simple and sensitive detection of cardiac biomarkers is of great significance for early diagnosis and prevention of acute myocardial infarction (AMI). Here, a ratiometric fluorescent nanohybrids probe (AuNCs-QDs) was synthesized through the coupling of bovine serum albumin-functionalized gold nanoclusters (AuNCs) with CdSe/ZnS quantum dots (QDs) to realize simple and sensitive detection of cardiac biomarker myoglobin (Mb). The AuNCs-QDs probe shows pink fluorescence under UV light, with two emission peaks at 468 nm and 630 nm belonging to QDs and AuNCs, respectively. Importantly, the presence of Mb caused fluorescence quenching of the blue-emitting QDs, thereby inhibiting the fluorescence resonance energy transfer (FRET) process between QDs and AuNCs, and reducing the fluorescence intensity ratio (F468/F630) of AuNCs-QDs probe effectively. As the concentration of Mb increases, the ratiometric fluorescent probe also exhibits a visible fluorescence color change. The detection limit was as low as 4.99 μg/mL, and the response of the probe to Mb showed a good linear relationship up to 0.52 mg/mL. Moreover, the probe has excellent specificity for Mb. Besides, the AuNCs-QDs has been applied to detect Mb of urine samples. More importantly, we also developed an AuNCs-QDs probe modified smartphone-aided paper-based strip for on-site monitoring of Mb. As far as we know, this is the first report of a smartphone-aided paper-based strip for on-site quick monitoring of Mb, which provides a useful approach for AMI biomarker monitoring and may can be extended to other medical diagnostics.
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Affiliation(s)
- Zichen Xu
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400030, China
| | - Hedan Xu
- Chongqing Key Laboratory of Nano/Micro Composite Materials and Devices, Chongqing Engineering Laboratory of Nano/Micro Biomedical Detection, Chongqing University of Science and Technology, No. 12 East Road, University Town, Chongqing, 401331, People's Republic of China
| | - Hongliang Duan
- Chongqing Key Laboratory of Nano/Micro Composite Materials and Devices, Chongqing Engineering Laboratory of Nano/Micro Biomedical Detection, Chongqing University of Science and Technology, No. 12 East Road, University Town, Chongqing, 401331, People's Republic of China
| | - Junjie Li
- Chongqing Key Laboratory of Nano/Micro Composite Materials and Devices, Chongqing Engineering Laboratory of Nano/Micro Biomedical Detection, Chongqing University of Science and Technology, No. 12 East Road, University Town, Chongqing, 401331, People's Republic of China
| | - Xiao Hu
- Chongqing Key Laboratory of Nano/Micro Composite Materials and Devices, Chongqing Engineering Laboratory of Nano/Micro Biomedical Detection, Chongqing University of Science and Technology, No. 12 East Road, University Town, Chongqing, 401331, People's Republic of China
| | - Kaixin Jiang
- Chongqing Key Laboratory of Nano/Micro Composite Materials and Devices, Chongqing Engineering Laboratory of Nano/Micro Biomedical Detection, Chongqing University of Science and Technology, No. 12 East Road, University Town, Chongqing, 401331, People's Republic of China
| | - Guixue Wang
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400030, China.
| | - Yuanyuan Zhang
- Chongqing Key Laboratory of Nano/Micro Composite Materials and Devices, Chongqing Engineering Laboratory of Nano/Micro Biomedical Detection, Chongqing University of Science and Technology, No. 12 East Road, University Town, Chongqing, 401331, People's Republic of China.
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Belal F, Mabrouk M, Hammad S, Ahmed H, Barseem A. Recent Applications of Quantum Dots in Pharmaceutical Analysis. J Fluoresc 2024; 34:119-138. [PMID: 37222883 DOI: 10.1007/s10895-023-03276-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 05/16/2023] [Indexed: 05/25/2023]
Abstract
Nanotechnology has emerged as one of the most potential areas for pharmaceutical analysis. The need for nanomaterials in pharmaceutical analysis is comprehended in terms of economic challenges, health and safety concerns. Quantum dots (QDs)or colloidal semiconductor nanocrystals are new groups of fluorescent nanoparticles that bind nanotechnology to drug analysis. Because of their special physicochemical characteristics and small size, QDs are thought to be promising candidates for the electrical and luminescent probes development. They were originally developed as luminescent biological labels, but are now discovering new analytical chemistry applications, where their photo-luminescent properties are used in pharmaceutical, clinical analysis, food quality control and environmental monitoring. In this review, we discuss QDs regarding properties and advantages, advances in methods of synthesis and their recent applications in drug analysis in the recent last years.
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Affiliation(s)
- Fathalla Belal
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura, 35516, Egypt
| | - Mokhtar Mabrouk
- Department of pharmaceutical analytical Chemistry, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - Sherin Hammad
- Department of pharmaceutical analytical Chemistry, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - Hytham Ahmed
- Pharmaceutical Analysis Department, Faculty of Pharmacy, Menoufia University, Menoufia, Egypt
| | - Aya Barseem
- Pharmaceutical Analysis Department, Faculty of Pharmacy, Menoufia University, Menoufia, Egypt.
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Kumbhar PR, Kumar P, Lasure A, Velayutham R, Mandal D. An updated landscape on nanotechnology-based drug delivery, immunotherapy, vaccinations, imaging, and biomarker detections for cancers: recent trends and future directions with clinical success. Discov Nano 2023; 18:156. [PMID: 38112935 PMCID: PMC10730792 DOI: 10.1186/s11671-023-03913-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Accepted: 10/20/2023] [Indexed: 12/21/2023]
Abstract
The recent development of nanotechnology-based formulations improved the diagnostics and therapies for various diseases including cancer where lack of specificity, high cytotoxicity with various side effects, poor biocompatibility, and increasing cases of multi-drug resistance are the major limitations of existing chemotherapy. Nanoparticle-based drug delivery enhances the stability and bioavailability of many drugs, thereby increasing tissue penetration and targeted delivery with improved efficacy against the tumour cells. Easy surface functionalization and encapsulation properties allow various antigens and tumour cell lysates to be delivered in the form of nanovaccines with improved immune response. The nanoparticles (NPs) due to their smaller size and associated optical, physical, and mechanical properties have evolved as biosensors with high sensitivity and specificity for the detection of various markers including nucleic acids, protein/antigens, small metabolites, etc. This review gives, initially, a concise update on drug delivery using different nanoscale platforms like liposomes, dendrimers, polymeric & various metallic NPs, hydrogels, microneedles, nanofibres, nanoemulsions, etc. Drug delivery with recent technologies like quantum dots (QDs), carbon nanotubes (CNTs), protein, and upconverting NPs was updated, thereafter. We also summarized the recent progress in vaccination strategy, immunotherapy involving immune checkpoint inhibitors, and biomarker detection for various cancers based on nanoplatforms. At last, we gave a detailed picture of the current nanomedicines in clinical trials and their possible success along with the existing approved ones. In short, this review provides an updated complete landscape of applications of wide NP-based drug delivery, vaccinations, immunotherapy, biomarker detection & imaging for various cancers with a predicted future of nanomedicines that are in clinical trials.
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Affiliation(s)
- Pragati Ramesh Kumbhar
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research- Hajipur, Hajipur, 844102, India
| | - Prakash Kumar
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research- Hajipur, Hajipur, 844102, India
| | - Aarti Lasure
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research- Hajipur, Hajipur, 844102, India
| | | | - Debabrata Mandal
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research- Hajipur, Hajipur, 844102, India.
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