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Gupta D, Roy P, Sharma R, Kasana R, Rathore P, Gupta TK. Recent nanotheranostic approaches in cancer research. Clin Exp Med 2024; 24:8. [PMID: 38240834 PMCID: PMC10799106 DOI: 10.1007/s10238-023-01262-3] [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: 08/10/2023] [Accepted: 12/07/2023] [Indexed: 01/22/2024]
Abstract
Humanity is suffering from cancer which has become a root cause of untimely deaths of individuals around the globe in the recent past. Nanotheranostics integrates therapeutics and diagnostics to monitor treatment response and enhance drug efficacy and safety. We hereby propose to discuss all recent cancer imaging and diagnostic tools, the mechanism of targeting tumor cells, and current nanotheranostic platforms available for cancer. This review discusses various nanotheranostic agents and novel molecular imaging tools like MRI, CT, PET, SPEC, and PAT used for cancer diagnostics. Emphasis is given to gold nanoparticles, silica, liposomes, dendrimers, and metal-based agents. We also highlight the mechanism of targeting the tumor cells, and the limitations of different nanotheranostic agents in the field of research for cancer treatment. Due to the complexity in this area, multifunctional and hybrid nanoparticles functionalized with targeted moieties or anti-cancer drugs show the best feature for theranostics that enables them to work on carrying and delivering active materials to the desired area of the requirement for early detection and diagnosis. Non-invasive imaging techniques have a specificity of receptor binding and internalization processes of the nanosystems within the cancer cells. Nanotheranostics may provide the appropriate medicine at the appropriate dose to the appropriate patient at the appropriate time.
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Affiliation(s)
- Deepshikha Gupta
- Department of Chemistry, Amity Institute of Applied Sciences, Amity University, Sector-125, Noida, Uttar Pradesh, 201313, India.
| | - Priyanka Roy
- Department of Chemistry, Jamia Hamdard University, New Delhi, 110062, India
| | - Rishabh Sharma
- Department of Chemistry, Amity Institute of Applied Sciences, Amity University, Sector-125, Noida, Uttar Pradesh, 201313, India
| | - Richa Kasana
- Department of Chemistry, Amity Institute of Applied Sciences, Amity University, Sector-125, Noida, Uttar Pradesh, 201313, India
| | - Pragati Rathore
- Department of Chemistry, Amity Institute of Applied Sciences, Amity University, Sector-125, Noida, Uttar Pradesh, 201313, India
| | - Tejendra Kumar Gupta
- Department of Chemistry, Amity Institute of Applied Sciences, Amity University, Sector-125, Noida, Uttar Pradesh, 201313, India
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2
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Kim D, Kim SJ, Jeong J, Han S, Kim H, Lee S, Choi I, Hong J, Jin JO, Lee JB. Multimodal Golden DNA Superstructures (GDSs) for Highly Efficient Photothermal Immunotherapy. ACS Nano 2024; 18:1744-1755. [PMID: 38174995 DOI: 10.1021/acsnano.3c12535] [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] [Indexed: 01/05/2024]
Abstract
DNA-templated metallization has emerged as an efficient strategy for creating nanoscale-metal DNA hybrid structures with a desirable conformation and function. Despite the potential of DNA-metal hybrids, their use as combinatory therapeutic agents has rarely been examined. Herein, we present a simple approach for fabricating a multipurpose DNA superstructure that serves as an efficient photoimmunotherapy agent. Specifically, we adsorb and locally concentrate Au ions onto DNA superstructures through induced local reduction, resulting in the formation of Au nanoclusters. The mechanical and optical properties of these metallic nanoclusters can be rationally controlled by their conformations and metal ions. The resulting golden DNA superstructures (GDSs) exhibit significant photothermal effects that induce cancer cell apoptosis. When sequence-specific immunostimulatory effects of DNA are combined, GDSs provide a synergistic effect to eradicate cancer and inhibit metastasis, demonstrating potential as a combinatory therapeutic agent for tumor treatment. Altogether, the DNA superstructure-templated metal casting system offers promising materials for future biomedical applications.
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Affiliation(s)
- Dajeong Kim
- Department of Chemical Engineering, University of Seoul, Seoul 02504, Republic of Korea
| | - So-Jung Kim
- Department of Medical Biotechnology, Yeungnam University, Gyeongsan 38541, Republic of Korea
- Department of Microbiology, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
| | - Jaepil Jeong
- Department of Chemical Engineering, University of Seoul, Seoul 02504, Republic of Korea
| | - Sangwoo Han
- Department of Chemical Engineering, University of Seoul, Seoul 02504, Republic of Korea
| | - Hyejin Kim
- Department of Chemical Engineering, University of Seoul, Seoul 02504, Republic of Korea
| | - Seungki Lee
- Department of Life Science, University of Seoul, Seoul 02504, Republic of Korea
| | - Inhee Choi
- Department of Life Science, University of Seoul, Seoul 02504, Republic of Korea
| | - Jinkee Hong
- Department of Chemical & Biomolecular Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Jun-O Jin
- Department of Microbiology, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
| | - Jong Bum Lee
- Department of Chemical Engineering, University of Seoul, Seoul 02504, Republic of Korea
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Koçak İ. ZnO and Au nanoparticles supported highly sensitive and selective electrochemical sensor based on molecularly imprinted polymer for sulfaguanidine and sulfamerazine detection. J Pharm Biomed Anal 2023; 234:115518. [PMID: 37336038 DOI: 10.1016/j.jpba.2023.115518] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 04/12/2023] [Revised: 06/06/2023] [Accepted: 06/06/2023] [Indexed: 06/21/2023]
Abstract
This study aimed to develop a molecularly imprinted polymer (MIP) sensor using electropolymerization of thiophene acetic acid monomer around template molecules, sulfaguanidine (SGN) and sulfamerazine (SMR), for selective and sensitive detection of both antibiotics. Au nanoparticles were then deposited on the modified electrode surface, and SGN and SMR were extracted from the resulting layer. Surface characterization, changes in the oxidation peak current of both analytes, and investigation of the electrochemical properties of the MIP sensor were examined using scanning electron microscopy, cyclic voltammetry, and differential pulse voltammetry. The developed MIP sensor with Au nanoparticles showed a detection limit of 0.030 µmol L-1 and 0.046 µmol L-1 for SGN and SMR, respectively, with excellent selectivity in the presence of interferents. The sensor was successfully used for SGN and SMR analysis in human fluids, including blood serum and urine, with excellent stability and reproducibility.
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Affiliation(s)
- İzzet Koçak
- Zonguldak Bülent Ecevit University Faculty of Pharmacy, Zonguldak, Turkey.
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Xue G, Wu M, Liu T, Fang X, Yin J, Lai W, Peng J. A multiple lateral flow immunoassay based on AuNP for the detection of 5 chemical contaminants in milk. J Dairy Sci 2023; 106:3856-3867. [PMID: 37164860 DOI: 10.3168/jds.2022-23008] [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: 11/09/2022] [Accepted: 01/04/2023] [Indexed: 05/12/2023]
Abstract
Melamine (MEL), enrofloxacin (ENR), sulfamethazine (SMZ), tetracycline (TC), and aflatoxin M1 (AFM1) are the main chemical contaminants in milk. It is necessary to detect these miscellaneous chemical contaminants in milk synchronously to ensure the safety of the milk. In this study, a multiple lateral flow immunoassay (LFIA) was developed for the detection of MEL, ENR, SMZ, TC, and AFM1 in milk. Under optimal experimental conditions, the cutoff values were 25 ng/mL for MEL, 1 ng/mL for ENR, 2.5 ng/mL for SMZ, 2.5 ng/mL for TC, and 0.25 ng/mL for AFM1 in milk samples. The limits of detection of LFIA were 0.173 ng/mL for MEL, 0.078 ng/mL for ENR, 0.059 ng/mL for SMZ, 0.082 ng/mL for TC, and 0.0064 ng/mL for AFM1. The recovery rates of LFIA in milk were 83.2-104.4% for MEL, 76.5-127.3% for ENR, 96.8-113.5% for SMZ, 107.1-166.6% for TC, and 93.5-130.3% for AFM1. The coefficients of variation were all less than 15%. As a whole, the developed multiple lateral flow immunoassay showed potential as a highly reliable and excellent tool for the rapid and sensitive screening of MEL, ENR, SMZ, TC, and AFM1 in milk.
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Affiliation(s)
- Guangjian Xue
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Mengyun Wu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Tingting Liu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Xuechen Fang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Jiaqi Yin
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Weihua Lai
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Juan Peng
- School of Food Science, Nanchang University, Nanchang 330047, China.
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Łyczek J, Bończak B, Krzymińska I, Giżyński K, Paczesny J. Gold-oxoborate nanocomposite-coated orthodontic brackets gain antibacterial properties while remaining safe for eukaryotic cells. J Biomed Mater Res B Appl Biomater 2023; 111:996-1004. [PMID: 36462180 DOI: 10.1002/jbm.b.35208] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [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: 05/25/2022] [Revised: 10/21/2022] [Accepted: 11/23/2022] [Indexed: 12/07/2022]
Abstract
The study's main objective is to limit bacterial biofilm formation on fixed orthodontic appliances. Bacterial biofilm formation on such devices (e.g., brackets) causes enamel demineralization, referred to as white spot lesions (WSL). WSL is significant health, social and economic problem. We provide a nanotechnology-based solution utilizing a nanocomposite of gold nanoparticles embedded in a polyoxoborate matrix (BOA: B-boron, O-oxygen, A-gold, Latin aurum). The nanocomposite is fully inorganic, and the coating protocol is straightforward, effective, and ecologically friendly (low waste and water-based). Prepared coatings are mechanically stable against brushing with a toothbrush (up to 100 min of brushing). Bacteria adhesion and antibacterial properties are tested against Streptococcus mutans-common bacteria in the oral cavity. BOA reduces the adhesion of bacteria by around 78%, that is, from around 7.99 × 105 ± 1.33 × 105 CFU per bracket to 1.69 × 105 ± 3.07 × 104 CFU per bracket of S. mutans detached from unmodified and modified brackets, respectively. Modified fixed orthodontic brackets remain safe for eukaryotic cells and meet ISO 10993-5:2009 requirements for medical devices. The gathered data show that BOA deposited on orthodontic appliances provides a viable preventive measure against bacteria colonization, which presents frequent and significant complications of orthodontic treatment.
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Affiliation(s)
| | - Bartłomiej Bończak
- Department of Physical Chemistry of Biological Systems, Institute of Physical Chemistry Polish Academy of Sciences, Warsaw, Poland
| | - Izabela Krzymińska
- Department of Microbiology, Institute of Microbiological Technologies, Turek, Poland
| | - Konrad Giżyński
- Department of Physical Chemistry of Biological Systems, Institute of Physical Chemistry Polish Academy of Sciences, Warsaw, Poland
| | - Jan Paczesny
- Department of Physical Chemistry of Biological Systems, Institute of Physical Chemistry Polish Academy of Sciences, Warsaw, Poland
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Wang M, Gao F, Ni S, Song Y, Wang C, Li Q, Zhao P. Electrochemical immunosensor based on gold-thionine for detection of subarachnoid hemorrhage biomarker. Front Bioeng Biotechnol 2023; 11:1153987. [PMID: 36970612 PMCID: PMC10030515 DOI: 10.3389/fbioe.2023.1153987] [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: 01/30/2023] [Accepted: 02/17/2023] [Indexed: 03/29/2023] Open
Abstract
Introduction: In clinical work, the realization of an early diagnosis of Subarachnoid hemorrhage (SAH) is primarily based on conventional computed tomography (CT), MR angiography, transcranial Doppler (TCD) ultrasound, and neurological assessments. However, the association between imaging manifestations and clinical findings is insufficiently perfect, particularly in SAH patients in acute phases with a lower amount of blood. The establishment of a direct, rapid and ultra-sensitive detection method based on electrochemical biosensors has emerged as a new competitive challenge in disease biomarkers research. Methods: In this study, a novel free-labeled electrochemical immunosensor for rapidly and sensitively detecting IL-6 in subarachnoid hemorrhage (SAH) blood has been developed using Au nanospheres-thionine composites (AuNPs/THI) as the interface modified on the electrode. Then, we detected IL-6 in blood samples from SAH patients by (enzyme-linked immunosorbent assay) ELISA and electrochemical immunosensor. Results: Under the best conditions, the developed electrochemical immunosensor exhibited a wide linear range from 10-2 ng/mL to 102 ng/mL with a low detection limit of 1.85 pg/mL. Furthermore, when the immunosensor was employed in the analysis of IL-6 in 100% serum, the results obtained by electrochemical immunoassay were consistent with those obtained by ELISA without suffering from other significant biological interference. Discussion: The designed electrochemical immunosensor realizes the detection of IL-6 in actual serum samples with high accuracy and sensitivity, and could potentially become a promising technique for applications in the clinical diagnosis of SAH.
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Affiliation(s)
- Mengyue Wang
- The Second Affiliated Hospital, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, Shandong, China
| | - Feng Gao
- The Second Affiliated Hospital, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, Shandong, China
| | - Shoujie Ni
- The Second Affiliated Hospital, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, Shandong, China
| | - Yanan Song
- The Second Affiliated Hospital, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, Shandong, China
- Qingdao Medical College of Qingdao University, Qingdao, Shandong, China
| | - Cai Wang
- The Second Affiliated Hospital, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, Shandong, China
| | - Qian Li
- The Second Affiliated Hospital, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, Shandong, China
| | - Peng Zhao
- The Second Affiliated Hospital, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, Shandong, China
- *Correspondence: Peng Zhao,
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Rizalputri LN, Anshori I, Handayani M, Gumilar G, Septiani NLW, Hartati YW, Annas MS, Purwidyantri A, Prabowo BA, Yuliarto B. Facile and controllable synthesis of monodisperse gold nanoparticle bipyramid for electrochemical dopamine sensor. Nanotechnology 2022; 34:055502. [PMID: 36301678 DOI: 10.1088/1361-6528/ac9d3f] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [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: 08/07/2022] [Accepted: 10/25/2022] [Indexed: 06/16/2023]
Abstract
We demonstrated potential features of gold nanoparticle bipyramid (AuNB) for an electrochemical biosensor. The facile synthesis method and controllable shape and size of the AuNB are achieved through the optimization of cetyltrimethylammonium chloride (CTAC) surfactant over citric acid (CA) ratio determining the control of typically spherical Au seed size and its transition into a penta-twinned crystal structure. We observe that the optimized ratio of CTAC and CA facilitates flocculation control in which Au seeds with size as tiny as ∼14.8 nm could be attained and finally transformed into AuNB structures with an average length of ∼55 nm with high reproducibility. To improve the electrochemical sensing performance of a screen-printed carbon electrode, surface modification with AuNB via distinctive linking procedures effectively enhanced the electroactive surface area by 40%. Carried out for the detection of dopamine, a neurotransmitter frequently linked to the risk of Parkinson's, Alzheimer's, and Huntington's diseases, the AuNB decorated-carbon electrode shows outstanding electrocatalytic activity that improves sensing performance, including high sensitivity, low detection limit, wide dynamic range, high selectivity against different analytes, such as ascorbic acid, uric acid and urea, and excellent reproducibility.
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Affiliation(s)
- Lavita Nuraviana Rizalputri
- Department of Nanotechnology, Graduate School, Bandung Institute of Technology, Bandung, Indonesia
- Research Center for Nanoscience and Nanotechnology (RCNN), Bandung Institute of Technology, Bandung, Indonesia
| | - Isa Anshori
- Research Center for Nanoscience and Nanotechnology (RCNN), Bandung Institute of Technology, Bandung, Indonesia
- Department of Biomedical Engineering, Bandung Institute of Technology, Bandung, Indonesia
| | - Murni Handayani
- Research Center for Advanced Materials, National Research and Innovation Agency (BRIN), Tangerang Selatan, Indonesia
| | - Gilang Gumilar
- Research Center for Nanoscience and Nanotechnology (RCNN), Bandung Institute of Technology, Bandung, Indonesia
- Advanced Functional Materials Laboratory, Engineering Physics Department, Bandung Institute of Technology, Bandung, Indonesia
| | - Ni Luh Wulan Septiani
- Research Center for Advanced Materials, National Research and Innovation Agency (BRIN), Tangerang Selatan, Indonesia
| | - Yeni Wahyuni Hartati
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Sumedang, Indonesia
- Research Center of Molecular Biotechnology and Bioinformatics, Universitas Padjadjaran, Bandung, Indonesia
| | | | - Agnes Purwidyantri
- School of Chemistry and Chemical Engineering, Queen's University Belfast, Belfast, United Kingdom
| | - Briliant Adhi Prabowo
- Research Center for Electronics, National Research and Innovation Agency (BRIN), Bandung, Indonesia
- International Iberian Nanotechnology Laboratory, Braga, Portugal
| | - Brian Yuliarto
- Research Center for Nanoscience and Nanotechnology (RCNN), Bandung Institute of Technology, Bandung, Indonesia
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McDougall RM, Cahill HF, Power ME, MacCormack TJ, Meli MV, Rourke JL. Multiparametric cytotoxicity assessment: the effect of gold nanoparticle ligand functionalization on SKOV3 ovarian carcinoma cell death. Nanotoxicology 2022; 16:355-374. [PMID: 35787735 DOI: 10.1080/17435390.2022.2095312] [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: 10/17/2022]
Abstract
Gold nanoparticles (AuNP) are promising anti-cancer agents because of their modifiable properties and high biocompatibility. This study used multiple parallel analyses to investigate the cytotoxic properties of 5 nm AuNP conjugated to four different ligands with distinct surface chemistry: polyethylene glycol (PEG), trimethylammonium bromide (TMAB), 4-dimethylaminopyridine (DMAP), and carboxyl (COOH). We used a range of biochemical and high-content microscopy methods to evaluate the metabolic function, oxidative stress, cell health, cell viability, and cell morphology in SKOV3 ovarian cancer cells. Each AuNP displayed a distinct cytotoxicity profile. All AuNP species assessed exhibited signs of dose-dependent cytotoxicity when morphology, clonogenic survival, lysosomal uptake, or cell number were measured as the marker of toxicity. All particles except for AuNP-COOH increased SKOV3 apoptosis. In contrast, AuNP-TMAB was the only particle that did not alter the metabolic function or induce significant signs of oxidative stress. These results demonstrate that AuNP surface chemistry impacts the magnitude and mechanism of SKOV3 cell death. Together, these findings reinforce the important role for multiparametric cytotoxicity characterization when considering the utility of novel particles and surface chemistries.
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Affiliation(s)
- Rachel M McDougall
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, Canada
| | - Hannah F Cahill
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, Canada
| | - Madeline E Power
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, Canada
| | - Tyson J MacCormack
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, Canada
| | - M-Vicki Meli
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, Canada
| | - Jillian L Rourke
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, Canada
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Tutty MA, Vella G, Vennemann A, Wiemann M, Prina-Mello A. Evaluating nanobiomaterial-induced DNA strand breaks using the alkaline comet assay. Drug Deliv Transl Res 2022. [PMID: 35612707 DOI: 10.1007/s13346-022-01178-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/05/2022] [Indexed: 11/12/2022]
Abstract
Due to their unique chemical and physical properties, nanobiomaterials (NBMs) are extensively studied for applications in medicine and drug delivery. Despite these exciting properties, their small sizes also make them susceptible to toxicity. Whilst nanomaterial immunotoxicity and cytotoxicity are studied in great depth, there is still limited data on their potential genotoxicity or ability to cause DNA damage. In the past years, new medical device regulations, which came into place in 2020, were developed, which require the assessment of long-term NBM exposure; therefore, in recent years, increased attention is being paid to genotoxicity screening of these materials. In this article, and through an interlaboratory comparison (ILC) study conducted within the Horizon 2020 REFINE project, we assess five different NBM formulations, each with different uses, namely, a bio-persistent gold nanoparticle (AuNP), an IR-780 dye-loaded liposome which is used in deep tissue imaging (LipImage™815), an unloaded PACA polymeric nanoparticle used as a drug delivery system (PACA), and two loaded PACA NBMs, i.e. the cabazitaxel drug-loaded PACA (CBZ-PACA) and the NR668 dye-loaded PACA (NR668 PACA) for their potential to cause DNA strand breaks using the alkaline comet assay and discuss the current state of genotoxicity testing for nanomaterials. We have found through our interlaboratory comparison that the alkaline comet assay can be suitably applied to the pre-clinical assessment of NBMs, as a reproducible and repeatable methodology for assessing NBM-induced DNA damage.
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López-Valverde JA, Jiménez-Ortega E, Leal A. Clinical Feasibility Study of Gold Nanoparticles as Theragnostic Agents for Precision Radiotherapy. Biomedicines 2022; 10:1214. [PMID: 35625950 DOI: 10.3390/biomedicines10051214] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 05/18/2022] [Accepted: 05/21/2022] [Indexed: 12/24/2022] Open
Abstract
Background: Gold nanoparticles (AuNP) may be useful in precision radiotherapy and disease monitoring as theragnostic agents. In diagnostics, they can be detected by computerized tomography (CT) because of their higher atomic number. AuNP may also improve the treatment results in radiotherapy due to a higher cross-section, locally improving the physically absorbed dose. Methods: Key parameters values involved in the use of AuNP were imposed to be optimal in the clinical scenario. Mass concentration of AuNP as an efficient contrast agent in clinical CT was found and implemented in a Monte Carlo simulation method for dose calculation under different proposed therapeutic beams. The radiosensitization effect was determined in irradiated cells with AuNP. Results: an AuNP concentration was found for a proper contrast level and enhanced therapeutic effect under a beam typically used for image-guided therapy and monitoring. This lower energetic proposed beam showed potential use for treatment monitoring in addition to absorbed dose enhancement and higher radiosensitization at the cellular level. Conclusion: the results obtained show the use of AuNP concentration around 20 mg Au·mL−1 as an efficient tool for diagnosis, treatment planning, and monitoring treatment. Simultaneously, the delivered prescription dose provides a higher radiobiological effect on the cancer cell for achieving precision radiotherapy.
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Kurup CP, Mohd-Naim NF, Ahmed MU. A solid-state electrochemiluminescence aptasensor for β-lactoglobulin using Ru- AuNP/GNP/Naf nanocomposite-modified printed sensor. Mikrochim Acta 2022; 189:165. [PMID: 35355134 DOI: 10.1007/s00604-022-05275-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [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: 10/25/2021] [Accepted: 03/10/2022] [Indexed: 01/16/2023]
Abstract
An electrochemiluminescence (ECL) aptasensor for the detection of the milk protein allergen β-lactoglobulin (β-LG) using nanocomposite as luminophore was fabricated. The Ru-AuNPs/GNP/Naf complex was formed by combining the Rubpy32+-AuNPs complex (Ru-AuNPs), prepared by modifying the negatively charged surface of gold nanoparticles (AuNPs) with positively charged Rubpy32+ through electrostatic interactions and the graphene nanoplatelets-Nafion (GNP/Naf) at a ratio of 2:1. The nanocomposite was coated on the surface of the screen-printed electrode (SPCE) through the film-forming properties of Nafion. A layer of chitosan (CS) was coated onto this modified electrode, and later amine-terminated β-LG aptamers were covalently attached to the CS/Ru-AuNP/GNP/Naf via glutaraldehyde (GLUT) cross-linking. When β-LG was incubated with the aptasensor, a subsequent decrease in ECL intensity was recorded. Under the optimal conditions, the ECL intensity of the aptasensor changed linearly with the logarithmic concentration of β-LG, in the range 0.1 to 1000 pg/ml, and the detection limit was 0.02 pg/mL (3σ/m). The constructed aptasensor displayed simple and fast determination of β-LG with excellent reproducibility, stability, and high specificity. Additionally, the proposed ECL aptasensor displayed high recoveries (92.5-112%) and low coefficients of variation (1.6-7.8%), when β-LG fortified samples were analyzed. Integrating Ru-AuNPs/GNP/Naf nanocomposite in the ECL aptasensor paves the way towards a cost-effective and sensitive detection of the milk allergen β-LG.
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Affiliation(s)
- Chitra Padmakumari Kurup
- Biosensors and Nanobiotechnology Laboratory, Integrated Science Building, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, 1410, BE, Brunei Darussalam
| | - Noor Faizah Mohd-Naim
- PAPRSB Institute of Health Sciences, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, 1410, BE, Brunei Darussalam
| | - Minhaz Uddin Ahmed
- Biosensors and Nanobiotechnology Laboratory, Integrated Science Building, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, 1410, BE, Brunei Darussalam.
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12
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Sil BK, Jamiruddin MR, Haq MA, Khondoker MU, Jahan N, Khandker SS, Ali T, Oishee MJ, Kaitsuka T, Mie M, Tomizawa K, Kobatake E, Haque M, Adnan N. AuNP Coupled Rapid Flow-Through Dot-Blot Immuno-Assay for Enhanced Detection of SARS-CoV-2 Specific Nucleocapsid and Receptor Binding Domain IgG. Int J Nanomedicine 2021; 16:4739-4753. [PMID: 34267520 PMCID: PMC8277418 DOI: 10.2147/ijn.s313140] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 06/24/2021] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Serological tests detecting severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) are widely used in seroprevalence studies and evaluating the efficacy of the vaccination program. Some of the widely used serological testing techniques are enzyme-linked immune-sorbent assay (ELISA), chemiluminescence immunoassay (CLIA), and lateral flow immunoassay (LFIA). However, these tests are plagued with low sensitivity or specificity, time-consuming, labor-intensive, and expensive. We developed a serological test implementing flow-through dot-blot assay (FT-DBA) for SARS-CoV-2 specific IgG detection, which provides enhanced sensitivity and specificity while being quick to perform and easy to use. METHODS SARS-CoV-2 antigens were immobilized on nitrocellulose membrane to capture human IgG, which was then detected with anti-human IgG conjugated gold nanoparticle (hIgG-AuNP). A total of 181 samples were analyzed in-house. Within which 35 were further evaluated in US FDA-approved CLIA Elecsys SARS-CoV-2 assay. The positive panel consisted of RT-qPCR positive samples from patients with both <14 days and >14 days from the onset of clinical symptoms. The negative panel contained samples collected from the pre-pandemic era dengue patients and healthy donors during the pandemic. Moreover, the sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) of FT-DBA were evaluated against RT-qPCR positive sera. However, the overall efficacies were assessed with sera that seroconverted against either nucleocapsid (NCP) or receptor-binding domain (RBD). RESULTS In-house ELISA selected a total of 81 true seropositive and 100 seronegative samples. The sensitivity of samples with <14 days using FT-DBA was 94.7%, increasing to 100% for samples >14 days. The overall detection sensitivity and specificity were 98.8% and 98%, respectively, whereas the overall PPV and NPV were 99.6% and 99%. Moreover, comparative analysis between in-house ELISA assays and FT-DBA revealed clinical agreement of Cohen's Kappa value of 0.944. The FT-DBA showed sensitivity and specificity of 100% when compared with commercial CLIA kits. CONCLUSION The assay can confirm past SARS-CoV-2 infection with high accuracy within 2 minutes compared to commercial CLIA or in-house ELISA. It can help track SARS-CoV-2 disease progression, population screening, and vaccination response. The ease of use of the assay without requiring any instruments while being semi-quantitative provides the avenue of its implementation in remote areas around the globe, where conventional serodiagnosis is not feasible.
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Affiliation(s)
- Bijon Kumar Sil
- Gonoshasthaya-RNA Molecular Diagnostic and Research Center, Dhaka, 1205, Bangladesh
| | | | - Md Ahsanul Haq
- Gonoshasthaya-RNA Molecular Diagnostic and Research Center, Dhaka, 1205, Bangladesh
| | | | - Nowshin Jahan
- Gonoshasthaya-RNA Molecular Diagnostic and Research Center, Dhaka, 1205, Bangladesh
| | - Shahad Saif Khandker
- Gonoshasthaya-RNA Molecular Diagnostic and Research Center, Dhaka, 1205, Bangladesh
| | - Tamanna Ali
- Gonoshasthaya-RNA Molecular Diagnostic and Research Center, Dhaka, 1205, Bangladesh
| | | | - Taku Kaitsuka
- School of Pharmacy, International University of Health and Welfare, Okawa, Fukuoka, 831-8501, Japan
| | - Masayasu Mie
- School of Life Science and Technology, Tokyo Institute of Technology, Yokohama, Kanagawa, 226-8502, Japan
| | - Kazuhito Tomizawa
- Department of Molecular Physiology, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, 860-0811, Japan
| | - Eiry Kobatake
- School of Life Science and Technology, Tokyo Institute of Technology, Yokohama, Kanagawa, 226-8502, Japan
| | - Mainul Haque
- The Unit of Pharmacology, Faculty of Medicine and Defence Health Universiti Pertahanan, Nasional Malaysia (National Defence University of Malaysia), Kuala Lumpur, 57000, Malaysia
| | - Nihad Adnan
- Department of Microbiology, Jahangirnagar University, Savar, Dhaka, 1342, Bangladesh
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Huynh M, Kempson I, Bezak E, Phillips W. Predictive modeling of hypoxic head and neck cancers during fractionated radiotherapy with gold nanoparticle radiosensitization. Med Phys 2021; 48:3120-3133. [PMID: 33818799 DOI: 10.1002/mp.14872] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Revised: 03/18/2021] [Accepted: 03/29/2021] [Indexed: 11/05/2022] Open
Abstract
PURPOSE Intrinsic radioresistance and increased proliferation rates in head and neck cancers (HNCs) are associated with negative radiotherapy (RT) treatment responses. The use of gold nanoparticles (AuNPs) as radiosensitizers could enable total radiation dose reduction and lowered radiation toxicity. AuNP radiosensitization may overcome hypoxia-induced radioresistance and treatment-induced accelerated repopulation of cancer cells in HNCs, improving radiotherapy outcomes. METHODS Tumor control was determined by considering individual cancer cell responses in probabilistic computational simulations using HYP-RT software for clinical radiotherapy doses and fractionation schedules along with three different nanoparticle administration schedules. Antagonistic tumor hypoxia and rapid tumor regrowth due to accelerated repopulation of cancers cells were taken into consideration. RESULTS Simulations indicate that tumors that are conventionally uncontrollable can be controlled with AuNP radiosensitization. In simulations where the absence of AuNPs required radiotherapy doses above standard clinical prescriptions, reoccurring AuNP administration allowed for radiation dose reductions below standard clinical dose prescriptions. For example, considering a 2 Gy per fraction radiotherapy schedule, tumor control was achieved with 57.2 ± 5.1 Gy (P = <0.0001) for weekly AuNP administration and 53.0 ± 4.0 Gy (P = <0.0001) for biweekly AuNP administration compared to 69.9 ± 5.8 Gy with no radiosensitization. CONCLUSIONS AuNPs decreased the predicted RT total doses required to achieve tumor control via total stem cell elimination, offering an optimistic prediction and method for which hypoxia-induced and rapidly growing radioresistant tumors are treated more effectively. Outcomes are also shown to be sensitive to the RT schedule with data for hyperfractionated RT indicating the greatest benefits from radiosensitization.
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Affiliation(s)
- Myxuan Huynh
- Cancer Research Institute, University of South Australia, Adelaide, SA, Australia
| | - Ivan Kempson
- Future Industries Institute, University of South Australia, Mawson Lakes, SA, 5095, Australia
| | - Eva Bezak
- Cancer Research Institute, University of South Australia, Adelaide, SA, Australia.,Department of Physics, University of Adelaide, North Terrace, Adelaide, SA, Australia
| | - Wendy Phillips
- Department of Physics, University of Adelaide, North Terrace, Adelaide, SA, Australia.,Department of Medical Physics, Royal Adelaide Hospital, Adelaide, SA, Australia
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González-Ballesteros N, Diego-González L, Lastra-Valdor M, Grimaldi M, Cavazza A, Bigi F, Rodríguez-Argüelles MC, Simón-Vázquez R. Saccorhiza polyschides used to synthesize gold and silver nanoparticles with enhanced antiproliferative and immunostimulant activity. Mater Sci Eng C Mater Biol Appl 2021; 123:111960. [PMID: 33812588 DOI: 10.1016/j.msec.2021.111960] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 02/02/2021] [Accepted: 02/08/2021] [Indexed: 02/07/2023]
Abstract
Over the last years, there has been an increasing trend towards the use of environmentally friendly processes to synthesize nanomaterials. In the case of nanomedicine, the use of bionanofactories with associated biological properties, such as seaweed, has emerged as a promising field of work due to the possibility they open for both the preservation of those properties in the nanomaterials synthesized and/or the reduction of their toxicity. In the present study, gold (Au@SP) and silver (Ag@SP) nanoparticles were synthesized using an aqueous extract of Saccorhiza polyschides (SP). Several techniques showed that the nanoparticles formed were spherical and stable, with mean diameters of 14 ± 2 nm for Au@SP and 15 ± 3 nm for Ag@SP. The composition of the biomolecules in the extract and the nanoparticles were also analyzed. The analyses performed indicate that the extract acts as a protective medium, with the particles embedded in it preventing aggregation and coalescence. Au@SP and Ag@SP showed superior immunostimulant and antiproliferative activity on immune and tumor cells, respectively, to that of the SP extract. Moreover, the nanoparticles were able to modulate the release of reactive oxygen species depending on the concentration. Hence, both nanoparticles have a significant therapeutic potential for the treatment of cancer or in immunostimulant therapy.
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Howaili F, Özliseli E, Küçüktürkmen B, Razavi SM, Sadeghizadeh M, Rosenholm JM. Stimuli-Responsive, Plasmonic Nanogel for Dual Delivery of Curcumin and Photothermal Therapy for Cancer Treatment. Front Chem 2021; 8:602941. [PMID: 33585400 PMCID: PMC7873892 DOI: 10.3389/fchem.2020.602941] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [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: 09/04/2020] [Accepted: 12/08/2020] [Indexed: 01/09/2023] Open
Abstract
Nanogels (Ng) are crosslinked polymer-based hydrogel nanoparticles considered to be next-generation drug delivery systems due to their superior properties, including high drug loading capacity, low toxicity, and stimuli responsiveness. In this study, dually thermo-pH-responsive plasmonic nanogel (AuNP@Ng) was synthesized by grafting poly (N-isopropyl acrylamide) (PNIPAM) to chitosan (CS) in the presence of a chemical crosslinker to serve as a drug carrier system. The nanogel was further incorporated with gold nanoparticles (AuNP) to provide simultaneous drug delivery and photothermal therapy (PTT). Curcumin's (Cur) low water solubility and low bioavailability are the biggest obstacles to effective use of curcumin for anticancer therapy, and these obstacles can be overcome by utilizing an efficient delivery system. Therefore, curcumin was chosen as a model drug to be loaded into the nanogel for enhancing the anticancer efficiency, and further, its therapeutic efficiency was enhanced by PTT of the formulated AuNP@Ng. Thorough characterization of Ng based on CS and PNIPAM was conducted to confirm successful synthesis. Furthermore, photothermal properties and swelling ratio of fabricated nanoparticles were evaluated. Morphology and size measurements of nanogel were determined by transmission electron microscopy (TEM), scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX). Nanogel was found to have a hydrodynamic size of ~167 nm and exhibited sustained release of curcumin up to 72 h with dual thermo-pH responsive drug release behavior, as examined under different temperature and pH conditions. Cytocompatibility of plasmonic nanogel was evaluated on MDA-MB-231 human breast cancer and non-tumorigenic MCF 10A cell lines, and the findings indicated the nanogel formulation to be cytocompatible. Nanoparticle uptake studies showed high internalization of nanoparticles in cancer cells when compared with non-tumorigenic cells and confocal microscopy further demonstrated that AuNP@Ng were internalized into the MDA-MB-231 cancer cells via endosomal route. In vitro cytotoxicity studies revealed dose-dependent and time-dependent drug delivery of curcumin loaded AuNP@Ng/Cur. Furthermore, the developed nanoparticles showed an improved chemotherapy efficacy when irradiated with near-infrared (NIR) laser (808 nm) in vitro. This work revealed that synthesized plasmonic nanogel loaded with curcumin (AuNP@Ng/Cur) can act as stimuli-responsive nanocarriers, having potential for dual therapy i.e., delivery of hydrophobic drug and photothermal therapy.
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Affiliation(s)
- Fadak Howaili
- NanoBiotechnology Department, Faculty of Biological Science, Tarbiat Modares University, Tehran, Iran
| | - Ezgi Özliseli
- Pharmaceutical Sciences Laboratory, Faculty of Science and Engineering, Åbo Akademi University, Turku, Finland
| | - Berrin Küçüktürkmen
- Pharmaceutical Sciences Laboratory, Faculty of Science and Engineering, Åbo Akademi University, Turku, Finland
- Department of Pharmaceutical Technology Faculty of Pharmacy, Ankara University, Ankara, Turkey
| | - Seyyede Mahboubeh Razavi
- Polymer Reaction Engineering Department, Faculty of Chemical Engineering, Tarbiat Modares University, Tehran, Iran
| | - Majid Sadeghizadeh
- NanoBiotechnology Department, Faculty of Biological Science, Tarbiat Modares University, Tehran, Iran
| | - Jessica M. Rosenholm
- Pharmaceutical Sciences Laboratory, Faculty of Science and Engineering, Åbo Akademi University, Turku, Finland
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Nossier AI, Shehata NI, Morsy SM, Saeed DF, Elsayed NM, Ismail MF, Eissa S. Determination of certain urinary microRNAs as promising biomarkers in diabetic nephropathy patients using gold nanoparticles. Anal Biochem 2020; 609:113967. [PMID: 32950495 DOI: 10.1016/j.ab.2020.113967] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [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: 06/14/2020] [Revised: 08/17/2020] [Accepted: 09/15/2020] [Indexed: 01/07/2023]
Abstract
Diabetic nephropathy (DN) is a major leading cause of kidney failure. So, early detection of DN by assessing urinary microRNAs (miRNAs) expression may be of clinical value. In this study, the diagnostic value of two urinary miRNAs (miR-210 & miR-34a) as biomarkers for diagnosis of DN was assessed using a simple colorimetric gold nanoparticle (AuNP) assay and real-time PCR. MiR-(210 & 34a) were markedly up-regulated in DN groups (micro-albuminuric and macro-albuminuric groups) compared to the non-albuminuric group and healthy controls. The sensitivity and specificity for the qualitative detection of urinary miR-(210 & 34a) using the AuNP assay were (78% and 72%) & (81% and 69%), respectively, which were consistent with the results of real-time PCR. There was a highly significant correlation between urinary miR-(210 & 34a) detected by either qRT-PCR or qualitative AuNP assay. Accordingly, this simple AuNP assay may be considered a valid test for the detection of these two urinary miRNAs as potential biomarkers that can aid in the noninvasive diagnosis of DN.
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Affiliation(s)
- Ahmed Ibrahim Nossier
- Biochemistry Department, College of Pharmaceutical Sciences and Drug Manufacturing, Misr University for Science and Technology (MUST), 6th October City, Giza, Egypt
| | | | - Suzy Mahmoud Morsy
- Biochemistry Department, College of Pharmaceutical Sciences and Drug Manufacturing, Misr University for Science and Technology (MUST), 6th October City, Giza, Egypt
| | - Doaa Fayez Saeed
- Biochemistry Department, College of Pharmaceutical Sciences and Drug Manufacturing, Misr University for Science and Technology (MUST), 6th October City, Giza, Egypt
| | | | - Manal F Ismail
- Biochemistry Department, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Sanaa Eissa
- Oncology Diagnostic Unit, Medical Biochemistry & Molecular Biology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
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Saini K, Kaushal A, Gupta S, Kumar D. PlcA-based nanofabricated electrochemical DNA biosensor for the detection of Listeria monocytogenes in raw milk samples. 3 Biotech 2020; 10:327. [PMID: 32656060 DOI: 10.1007/s13205-020-02315-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [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: 04/22/2020] [Accepted: 06/23/2020] [Indexed: 02/07/2023] Open
Abstract
The electrochemical DNA biosensor has been developed for the detection of Listeria monocytogenes in raw milk samples. The electrochemical studies of the developed biosensor was recorded by cyclic voltammetry (CV) and electrochemical impedance (EI) using methylene blue (MB) and potassium ferricyanide K3Fe(CN)- 6 as redox indicators. The selectivity of the developed biosensor was demonstrated using complementary and mismatch oligonucleotide sequences. The sensitivity (S) of the developed sensor was recorded as 3461 (μA/cm2)/ng and limit of detection (LOD) was found to be 82 fg/6 µl with the regression coefficient (R 2) 0.941 using CV. The sensor was characterized by field emission scanning electron microscopy (FE-SEM). The electrode was found to be stable for six months, with only 10% loss in the initial CV current.
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Affiliation(s)
- Kritika Saini
- Shoolini University of Biotechnology and Management Sciences, Bajhol, PO, Distt. Solan, Sultanpur, 173229 HP India
| | - Ankur Kaushal
- Amity University, Manesar, Gurugram, 122413 Haryana India
| | - Shagun Gupta
- Shoolini University of Biotechnology and Management Sciences, Bajhol, PO, Distt. Solan, Sultanpur, 173229 HP India
| | - Dinesh Kumar
- Shoolini University of Biotechnology and Management Sciences, Bajhol, PO, Distt. Solan, Sultanpur, 173229 HP India
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Cadoni E, Rosa-Gastaldo D, Manicardi A, Mancin F, Madder A. Exploiting Double Exchange Diels-Alder Cycloadditions for Immobilization of Peptide Nucleic Acids on Gold Nanoparticles. Front Chem 2020; 8:4. [PMID: 32039162 PMCID: PMC6989547 DOI: 10.3389/fchem.2020.00004] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [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: 11/15/2019] [Accepted: 01/06/2020] [Indexed: 12/22/2022] Open
Abstract
The generation of PNA-decorated gold nanoparticles (AuNPs) has revealed to be more difficult as compared to the generation of DNA-functionalized ones. The less polar nature of this artificial nucleic acid system and the associated tendency of the neutral poly-amidic backbone to aspecifically adsorb onto the gold surface rather than forming a covalent bond through gold-thiol interaction, combined with the low solubility of PNAs itself, form the main limiting factors in the functionalization of AuNP. Here, we provide a convenient methodology that allows to easily conjugate PNAs to AuNP. Positively charged PNAs containing a masked furan moiety were immobilized via a double exchange Diels-Alder cycloaddition onto masked maleimide-functionalized AuNPs in a one-pot fashion. Conjugated PNA strands retain their ability to selectively hybridize with target DNA strands. Moreover, the duplexes resulting from hybridization can be detached through a retro-Diels-Alder reaction, thus allowing straightforward catch-and-release of specific nucleic acid targets.
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Affiliation(s)
- Enrico Cadoni
- Organic and Biomimetic Chemistry Research Group, Department of Organic and Macromolecular Chemistry, Ghent University, Ghent, Belgium.,Dipartimento di Scienze Chimiche, Università di Padova, Padova, Italy
| | | | - Alex Manicardi
- Organic and Biomimetic Chemistry Research Group, Department of Organic and Macromolecular Chemistry, Ghent University, Ghent, Belgium
| | - Fabrizio Mancin
- Dipartimento di Scienze Chimiche, Università di Padova, Padova, Italy
| | - Annemieke Madder
- Organic and Biomimetic Chemistry Research Group, Department of Organic and Macromolecular Chemistry, Ghent University, Ghent, Belgium
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Graczyk A, Pawlowska R, Jedrzejczyk D, Chworos A. Gold Nanoparticles in Conjunction with Nucleic Acids as a Modern Molecular System for Cellular Delivery. Molecules 2020; 25:E204. [PMID: 31947834 PMCID: PMC6982881 DOI: 10.3390/molecules25010204] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 12/23/2019] [Accepted: 12/26/2019] [Indexed: 02/07/2023] Open
Abstract
Development of nanotechnology has become prominent in many fields, such as medicine, electronics, production of materials, and modern drugs. Nanomaterials and nanoparticles have gained recognition owing to the unique biochemical and physical properties. Considering cellular application, it is speculated that nanoparticles can transfer through cell membranes following different routes exclusively owing to their size (up to 100 nm) and surface functionalities. Nanoparticles have capacity to enter cells by themselves but also to carry other molecules through the lipid bilayer. This quality has been utilized in cellular delivery of substances like small chemical drugs or nucleic acids. Different nanoparticles including lipids, silica, and metal nanoparticles have been exploited in conjugation with nucleic acids. However, the noble metal nanoparticles create an alternative, out of which gold nanoparticles (AuNP) are the most common. The hybrids of DNA or RNA and metal nanoparticles can be employed for functional assemblies for variety of applications in medicine, diagnostics or nano-electronics by means of biomarkers, specific imaging probes, or gene expression regulatory function. In this review, we focus on the conjugates of gold nanoparticles and nucleic acids in the view of their potential application for cellular delivery and biomedicine. This review covers the current advances in the nanotechnology of DNA and RNA-AuNP conjugates and their potential applications. We emphasize the crucial role of metal nanoparticles in the nanotechnology of nucleic acids and explore the role of such conjugates in the biological systems. Finally, mechanisms guiding the process of cellular intake, essential for delivery of modern therapeutics, will be discussed.
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Affiliation(s)
| | | | | | - Arkadiusz Chworos
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland; (A.G.); (R.P.); (D.J.)
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Wang Q, Zou L, Yang X, Liu X, Nie W, Zheng Y, Cheng Q, Wang K. Direct quantification of cancerous exosomes via surface plasmon resonance with dual gold nanoparticle-assisted signal amplification. Biosens Bioelectron 2019; 135:129-136. [PMID: 31004923 DOI: 10.1016/j.bios.2019.04.013] [Citation(s) in RCA: 103] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 03/16/2019] [Accepted: 04/05/2019] [Indexed: 01/21/2023]
Abstract
Sensitive detection of cancerous exosomes is critical to early diseases diagnosis and prognosis. Herein, a sensitive aptasensor was demonstrated for exosomes detection by surface plasmon resonance (SPR) with dual gold nanoparticle (AuNP)-assisted signal amplification. Dual nanoparticle amplification was achieved by controlled hybridization attachment of AuNPs resulting from electronic coupling between the Au film and AuNPs, as well as coupling effects in plasmonic nanostructures. By blocking the Au film surface with 11-Mercapto-1 -undecanol (MCU), nonspecific adsorption of AuNPs onto the SPR chip surface was suppressed and regeneration of the SPR sensor was realized. This method was highly sensitive and we have achieved the limit of detection (LOD) down to 5 × 103 exosomes/mL, which showed a 104-fold improvement in LOD compared to commercial ELISA. Moreover, the SPR sensor had the capability to differentiate the exosomes secreted by MCF-7 breast cancer cells and MCF-10A normal breast cells. Furthermore, the SPR sensor could effectively detect the exosomes in 30% fetal bovine serum. The work provides a sensitive and efficient quantification approach to detect cancerous exosomes and offers an avenue toward future diagnosis and comprehensive studies of exosomes.
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Affiliation(s)
- Qing Wang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha, 410082, China
| | - Liyuan Zou
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha, 410082, China
| | - Xiaohai Yang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha, 410082, China.
| | - Xiaofeng Liu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha, 410082, China
| | - Wenyan Nie
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha, 410082, China
| | - Yan Zheng
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha, 410082, China
| | - Quan Cheng
- Department of Chemistry, University of California, Riverside, CA, 92521, United States
| | - Kemin Wang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha, 410082, China.
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Tian A, Yang C, Zhu B, Wang W, Liu K, Jiang Y, Qiao Y, Fu H, Li Z. Polyethylene-glycol-coated gold nanoparticles improve cardiac function after myocardial infarction in mice. Can J Physiol Pharmacol 2018; 96:1318-1327. [PMID: 30383982 DOI: 10.1139/cjpp-2018-0227] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [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: 11/22/2022]
Abstract
Gold nanoparticles (AuNPs) are widely used for drug delivery because of their unique biological properties, such as their safety and ability to prolong drug action. Some studies have demonstrated that AuNPs accumulate in the heart, especially during pathological processes. Therefore, it is very important to understand the effect of AuNPs on the heart. Myocardial infarction (MI) is a major cause of morbidity and mortality; however, the effect of AuNPs on MI remains unclear. In the present study, we carried out a comprehensive evaluation of AuNPs on acute MI. The results showed that AuNPs accumulated in infarcted hearts, decreased infarction size, improved systolic function, and inhibited cardiac fibrosis and TNF-α accumulation. Our work indicated that AuNPs have cardioprotective effects and can be used in drug delivery systems for the treatment of cardiac diseases.
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Affiliation(s)
- Aiju Tian
- a Department of Cardiology and Institute of Vascular Medicine, Peking University Third Hospital, Beijing, 100191, China; Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Ministry of Health, Beijing, 100191, China; Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Beijing, 100191, China; Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, 100191, China
| | - Chengzhi Yang
- a Department of Cardiology and Institute of Vascular Medicine, Peking University Third Hospital, Beijing, 100191, China; Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Ministry of Health, Beijing, 100191, China; Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Beijing, 100191, China; Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, 100191, China
| | - Baoling Zhu
- a Department of Cardiology and Institute of Vascular Medicine, Peking University Third Hospital, Beijing, 100191, China; Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Ministry of Health, Beijing, 100191, China; Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Beijing, 100191, China; Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, 100191, China
| | - Wenjing Wang
- a Department of Cardiology and Institute of Vascular Medicine, Peking University Third Hospital, Beijing, 100191, China; Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Ministry of Health, Beijing, 100191, China; Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Beijing, 100191, China; Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, 100191, China
| | - Kai Liu
- a Department of Cardiology and Institute of Vascular Medicine, Peking University Third Hospital, Beijing, 100191, China; Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Ministry of Health, Beijing, 100191, China; Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Beijing, 100191, China; Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, 100191, China
| | - Yunqi Jiang
- a Department of Cardiology and Institute of Vascular Medicine, Peking University Third Hospital, Beijing, 100191, China; Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Ministry of Health, Beijing, 100191, China; Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Beijing, 100191, China; Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, 100191, China
| | - Yuhui Qiao
- a Department of Cardiology and Institute of Vascular Medicine, Peking University Third Hospital, Beijing, 100191, China; Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Ministry of Health, Beijing, 100191, China; Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Beijing, 100191, China; Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, 100191, China
| | - Haian Fu
- b Department of Pharmacology, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Zijian Li
- a Department of Cardiology and Institute of Vascular Medicine, Peking University Third Hospital, Beijing, 100191, China; Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Ministry of Health, Beijing, 100191, China; Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Beijing, 100191, China; Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, 100191, China
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Abstract
A pH-sensitive bio-optical transponder (pH-BOT) capable of simultaneously reporting the timing of intracellular DNA cargo release from a gold nanoparticle (AuNP) and the evolving intracellular pH (pH i) during endosomal maturation is demonstrated. The pH-BOT is designed with a triple-dye-labeled duplex DNA appended to a 6.6 nm AuNP, utilizing pH-responsive fluorescein paired with DyLight405 as a surface energy transfer (SET) coupled dye pair to ratiometrically report the pH at and after cargo release. A non-SET-coupled dye, DyLight 700, is used to provide dynamic tracking throughout the experiment. The pH-BOT beacon of the cargo uptake, release, and processing was visualized using live-cell confocal fluorescent microscopy in Chinese hamster ovary cells, and it was observed that while maturation of endosomes carrying pH-BOT is slowed significantly, the pH-BOT is distributed throughout the endolysosomal system while remaining at pH ∼6. This observed decoupling of endosomal maturation from acidification lends support to those models that propose that pH alone is not sufficient to explain endosomal maturation and may enable greater insight into our understanding of the fundamental processes of biology.
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Affiliation(s)
- Kate J F Carnevale
- Department of Chemistry and Biochemistry , The Florida State University , Tallahassee , Florida 32306 , United States
| | - Ryan A Riskowski
- Department of Chemistry and Biochemistry , The Florida State University , Tallahassee , Florida 32306 , United States
| | - Geoffrey F Strouse
- Department of Chemistry and Biochemistry , The Florida State University , Tallahassee , Florida 32306 , United States
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23
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Lázár I, Szabó HJ. Prevention of the Aggregation of Nanoparticles during the Synthesis of Nanogold-Containing Silica Aerogels. Gels 2018; 4:E55. [PMID: 30674831 PMCID: PMC6209257 DOI: 10.3390/gels4020055] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2018] [Revised: 06/11/2018] [Accepted: 06/14/2018] [Indexed: 11/16/2022] Open
Abstract
Nanogold is widely used in many areas of physics and chemistry due to its environment-sensitive plasmon resonance absorption. The immobilization of gold nanoparticles in highly porous silica aerogel offers an attractive alternative to liquid gold solutions as they show a mechanically stable structure, are permeable to gases, and can even be used at elevated temperatures. We have found that the commercially available citrate-stabilized 10 nm gold nanoparticles may suffer from aggregation prior to or under the base-catalyzed gelation process of tetramethoxy silane. In the wet gels, Au particles increased in size, changed shape, and demonstrated the loss of plasmon resonance absorption, due to the formation of larger aggregates. We have studied a range of water-miscible organic solvents, stabilizing agents, and the gelation conditions to minimize changes from occurring in the aerogel setting and the supercritical drying process. It has been found that atmospheric carbon dioxide has a significant effect on aggregation, and it cannot be entirely excluded under normal synthetic conditions. Methanol resulted in an increase in the particle size only, while dimethyl sulfoxide, dimethylformamide, and urea changed the shape of nanoparticles to rod-like shapes, and diols led to an increase in both size and shape. However, using the polymeric stabilizer poly(vinyl pyrrolidone) efficiently prevented the aggregation of the particles, even in the presence of high concentrations of carbon dioxide, and allowed the production of nanoAu containing silica aerogels in a single step, without the modification of technology.
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Affiliation(s)
- István Lázár
- Department of Inorganic and Analytical Chemsitry, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary.
| | - Hanna Judit Szabó
- Department of Inorganic and Analytical Chemsitry, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary.
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24
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Lo HM, Ma MC, Shieh JM, Chen HL, Wu WB. Naked physically synthesized gold nanoparticles affect migration, mitochondrial activity, and proliferation of vascular smooth muscle cells. Int J Nanomedicine 2018; 13:3163-3176. [PMID: 29881271 PMCID: PMC5985769 DOI: 10.2147/ijn.s156880] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [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] [Indexed: 12/15/2022] Open
Abstract
Introduction Vascular smooth muscle cells (VSMCs) play an important role in the development and progression of atherosclerosis and vascular injuries in terms of proliferation and migration. Therefore, the aim of this study was to investigate the anti-migratory and proliferative effects of naked gold nanoparticles (AuNPs) on VSMCs. Materials and methods One set of physically synthesized AuNPs (pAuNPs) and three sets of chemically synthesized AuNPs (cAuNPs) were tested. Results and discussion Among them, the pAuNPs were found to significantly and markedly inhibit platelet-derived growth factor (PDGF)-induced VSMC migration. Transmission electron microscopy revealed that the pAuNPs were ingested and aggregated in the cytoplasm at an early stage of treatment, while the viability of VSMCs was not affected within 24 hours of treatment. The pAuNP treatment enhanced cellular mitochondrial activity but inhibited basal and PDGF-induced VSMC proliferation, as determined by MTT, WST-1, and BrdU cell proliferation assays. Furthermore, the pAuNPs did not interfere with PDGF signaling or matrix metalloproteinase-2 expression/activity. Unlike the cAuNPs, the pAuNPs could markedly reduce VSMC adhesion to collagen, which was supported by the findings that the pAuNPs could inhibit collagen-induced tyrosine protein and focal adhesion kinase (FAK) phosphorylation and actin cytoskeleton reorganization during cell adhesion. The in vitro effects of the pAuNPs were confirmed in the in vivo rat balloon-injured carotid artery model by diminishing the proliferating VSMCs. Conclusion Taken together, the present study provides the first evidence that naked pAuNPs can reduce VSMC migration and compromise cell adhesion by affecting FAK and tyrosine-protein activation. The pAuNPs also have an inhibitory effect on PDGF-induced VSMC proliferation and can reduce proliferating/migrating VSMC expression in vivo.
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Affiliation(s)
- Huey-Ming Lo
- School of Medicine, Fu-Jen Catholic University, New Taipei City, Taiwan.,Section of Cardiology, Department of Internal Medicine, Shin Kong Wu Ho-Su Memorial Hospital, Taipei, Taiwan
| | - Ming-Chieh Ma
- School of Medicine, Fu-Jen Catholic University, New Taipei City, Taiwan
| | - Jiunn-Min Shieh
- Department of Internal Medicine, Chi-Mei Medical Center, Tainan, Taiwan.,Department of Recreation and Healthcare Management, Chia Nan University of Pharmacy and Science, Tainan, Taiwan
| | - Hui-Ling Chen
- Holistic Education Center, Fu-Jen Catholic University, New Taipei City, Taiwan
| | - Wen-Bin Wu
- School of Medicine, Fu-Jen Catholic University, New Taipei City, Taiwan
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25
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Lai TH, Chung CH, Chen BH, Hung CF, Inbaraj BS, Ma MC, Chen HM, Tsou CJ, Wu PH, Wu WB. Gold Nanoparticles Compromise TNF-α-Induced Endothelial Cell Adhesion Molecule Expression Through NF-κB and Protein Degradation Pathways and Reduce Neointima Formation in A Rat Carotid Balloon Injury Model. J Biomed Nanotechnol 2018; 12:2185-01. [PMID: 29372968 DOI: 10.1166/jbn.2016.2315] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The aim of this study was to investigate the anti-inflammatory effects and mechanism of action of the gold nanoparticles (AuNPs) on vascular injury. In vitro vascular endothelial cell (EC) inflammation and in vivo rat carotid balloon injury models were used. The expression of TNF-α-induced cell adhesion molecules (CAMs) was suppressed by the AuNPs in human umbilical vein ECs and aortic ECs. The AuNPs reduced TNF-α-induced intracellular ROS production and NF-κB signaling pathways and enhanced CAM protein degradation by increasing their ubiquitination. However, they did not interfere with the mTOR pathway for protein synthesis and TNF-αbinding to ECs. These effects led to a reduction of monocyte adhesion to EC monolayers in vitro and endothelial CAM expression and monocyte/macrophage level in the vascular injured areas, contributing to a substantial decrease of arterial neointima formation in the rat carotid balloon injury model. The serum gold concentration was 99.5±18 ng/ml after three-day oral administration. Moreover, incubation of the AuNPs with serum and albumin led to an increase of particle sizes of the AuNPs. Collectively, we provide the first evidence that demonstrates that AuNPs possess anti-inflammatory bioactivity on vascular ECsin vitro and can reduce arterial neointima hyperplasia during vascular injury in vivo.
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26
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González-Ballesteros N, Rodríguez-González JB, Rodríguez-Argüelles MC. Harnessing the wine dregs: An approach towards a more sustainable synthesis of gold and silver nanoparticles. J Photochem Photobiol B 2018; 178:302-9. [PMID: 29175604 DOI: 10.1016/j.jphotobiol.2017.11.025] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Revised: 11/17/2017] [Accepted: 11/18/2017] [Indexed: 12/21/2022]
Abstract
In recent years, the management of food waste processing has emerged as a major concern. One such type of food waste, grape pomace, has been shown to be a great source of bioactive compounds which might be used for more environmentally - friendly processes for the synthesis of nanomaterials. In this study, grape pomace of Vitis vinifera has been used for the obtainment of an aqueous extract. Firstly, the reducing activity, total phenolic content and DPPH scavenging activity of the aqueous extract were determined. Then, the aqueous extract was used for the synthesis of gold and silver nanoparticles. The formation of spherical and stable nanoparticles with mean diameters of 35.3±5.2nm for Au@GP and 42.9±6.4nm for Ag@GP was confirmed by UV-vis spectroscopy and transmission electron microscopy. Furthermore, the functional group of biomolecules present in grape pomace extract, Au@GP and Ag@GP, were characterized by Fourier transform infrared spectroscopy prior to and after the synthesis, in order to obtain information about the biomolecules involved in the reducing and stabilization process. This study is the first to deal with the use of Vitis vinifera grape pomace in obtaining gold and silver nanoparticles through an eco-friendly, quick, one-pot synthetic route.
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27
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Riccardi L, Gabrielli L, Sun X, De Biasi F, Rastrelli F, Mancin F, De Vivo M. Nanoparticle-Based Receptors Mimic Protein-Ligand Recognition. Chem 2017; 3:92-109. [PMID: 28770257 PMCID: PMC5521955 DOI: 10.1016/j.chempr.2017.05.016] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [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: 12/07/2016] [Revised: 03/20/2017] [Accepted: 05/24/2017] [Indexed: 11/25/2022]
Abstract
The self-assembly of a monolayer of ligands on the surface of noble-metal nanoparticles dictates the fundamental nanoparticle's behavior and its functionality. In this combined computational-experimental study, we analyze the structure, organization, and dynamics of functionalized coating thiols in monolayer-protected gold nanoparticles (AuNPs). We explain how functionalized coating thiols self-organize through a delicate and somehow counterintuitive balance of interactions within the monolayer itself and with the solvent. We further describe how the nature and plasticity of these interactions modulate nanoparticle-based chemosensing. Importantly, we found that self-organization of coating thiols can induce the formation of binding pockets in AuNPs. These transient cavities can accommodate small molecules, mimicking protein-ligand recognition, which could explain the selectivity and sensitivity observed for different organic analytes in NMR chemosensing experiments. Thus, our findings advocate for the rational design of tailored coating groups to form specific recognition binding sites on monolayer-protected AuNPs. Synthesis and molecular simulations of AuNPs for chemosensing A rationale for the molecular recognition ability of functionalized AuNPs Functionalized coating ligands form transient protein-like binding pockets Toward the computational nanodesign of intelligent nanoreceptors for chemosensing
The functionalization of monolayer-protected nanoparticles is at the frontier of nanotechnology, such that innovative applications are emerging in fields such as nanomedicine, chemosensing, and even catalysis. Importantly, the nanoparticle's functionality is mainly defined by the nature of the ligands forming the coating monolayer. Here, we show how the self-organization of functionalized coating ligands in monolayer-protected gold nanoparticles (AuNPs) affects their solubility and molecular recognition abilities. We found that coating ligands form transient, protein-like binding pockets in functionalized AuNPs. Thus, we reveal that nanoparticle-based chemosensing operates through a recognition process that is similar to that for protein-ligand complex formation. These findings could now herald the arrival of the computational nanodesign of intelligent nanodevices with recognition abilities toward small molecules such as drugs, metabolites, illegal drugs, and small molecular markers for cancer.
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Affiliation(s)
- Laura Riccardi
- Laboratory of Molecular Modeling & Drug Discovery, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Luca Gabrielli
- Dipartimento di Scienze Chimiche, Università di Padova, Via Marzolo 1, 35131 Padova, Italy
| | - Xiaohuan Sun
- Dipartimento di Scienze Chimiche, Università di Padova, Via Marzolo 1, 35131 Padova, Italy
| | - Federico De Biasi
- Dipartimento di Scienze Chimiche, Università di Padova, Via Marzolo 1, 35131 Padova, Italy
| | - Federico Rastrelli
- Dipartimento di Scienze Chimiche, Università di Padova, Via Marzolo 1, 35131 Padova, Italy
| | - Fabrizio Mancin
- Dipartimento di Scienze Chimiche, Università di Padova, Via Marzolo 1, 35131 Padova, Italy
| | - Marco De Vivo
- Laboratory of Molecular Modeling & Drug Discovery, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy.,IAS-5/INM-9 Computational Biomedicine Forschungszentrum Jülich, Wilhelm-Johnen-Straße, 52428 Jülich, Germany
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28
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González-Ballesteros N, Prado-López S, Rodríguez-González JB, Lastra M, Rodríguez-Argüelles MC. Green synthesis of gold nanoparticles using brown algae Cystoseira baccata: Its activity in colon cancer cells. Colloids Surf B Biointerfaces 2017; 153:190-198. [PMID: 28242372 DOI: 10.1016/j.colsurfb.2017.02.020] [Citation(s) in RCA: 159] [Impact Index Per Article: 22.7] [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: 11/23/2016] [Accepted: 02/15/2017] [Indexed: 01/20/2023]
Abstract
This study is the first dealt with the use of brown macroalgae Cystoseira baccata (CB) extracts in obtaining gold nanoparticles (Au@CB) through an eco-friendly, fast, one-pot synthetic route. The formation of spherical, stable, polycrystalline nanoparticles with mean diameter of 8.4±2.2nm was demonstrated by UV-vis spectroscopy, TEM, HRTEM, STEM and zeta potential measurements. The extract appears to act as a protective agent where the particles are embedded, keeping them separated, avoiding aggregation and coalescence. The EELS and EDS analyses confirmed the elemental composition of the extract and nanoparticles. Moreover, the functional group of biomolecules present in CB and Au@CB were characterized by FTIR. The effects of CB extract and Au@CB were tested in vitro on the colon cancer cell lines HT-29 and Caco-2, as well as on normal primary neonatal dermal fibroblast cell line PCS-201-010. Results show a stronger cytotoxic effect against HT-29 than that on Caco-2; interestingly, a lack of toxicity on PCS-201-010 was obtained. Finally, the apoptotic activity was determined; Au@CB is able to induce apoptosis activation by the extrinsic and mitochondrial pathway in our CRC in vitro model. These encouraging results suggest that Au@CB has a significant potential for the treatment of colon rectal cancer.
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Affiliation(s)
| | - S Prado-López
- Departamento de Genética, Bioquímica e Inmunología, Universidade de Vigo, 36310 Vigo, Spain
| | - J B Rodríguez-González
- Scientific and Technological Research Assistance Center (CACTI), Universidade de Vigo, 36310 Vigo, Spain
| | - M Lastra
- Estación de Ciencias Marinas de Toralla (ECIMAT), Universidade de Vigo, 36331 Vigo, Spain
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29
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Nguyen VT, Seo HB, Kim BC, Kim SK, Song CS, Gu MB. Highly sensitive sandwich-type SPR based detection of whole H5Nx viruses using a pair of aptamers. Biosens Bioelectron 2016; 86:293-300. [PMID: 27387259 DOI: 10.1016/j.bios.2016.06.064] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 06/10/2016] [Accepted: 06/21/2016] [Indexed: 02/07/2023]
Abstract
In this research, we report highly sensitive and specific sandwich-type SPR-based biosensor for the detection H5Nx whole viruses. A few of aptamers, for the first time, were successfully screened and characterized for whole avian influenza (AI) viruses, H5Nx, by using Multi-GO-SELEX method. The affinities of the aptamers developed in this study were ranged from 8×10(4) to 1×10(4)EID50/ml, and the aptamers IF22, IF23 were found to be specific to H5N1 and H5N8, respectively. In addition, some flexible aptamers IF20, IF15, and IF10 were found to bind to the H5N1 and H5N2, H5N1 and H5N8, or H5N1, H5N2, and H5N8, respectively. Moreover, aptamers IF10 and IF22 were found to bind H5N1 virus simultaneously and confirmed to bind the different site of the same H5N1 whole virus. Therefore, this pair of aptamers, IF10 and IF22, were successfully applied to develop the sandwich-type SPR-based biosensor assay which is rapid, accurate for the detection of AI whole virus from H5N1-infected feces samples. The minimum detectible concentration of H5N1 whole virus was found to be 200 EID50/ml with this sandwich-type detection using the aptamer pair obtained in this study. In addition, the sensitivity of this biosensor was successfully enhanced by using the signal amplification with the secondary aptamer conjugated with gold nanoparticles.
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Affiliation(s)
- Van-Thuan Nguyen
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Anam-dong, Seongbuk-gu, Seoul 136-713, Republic of Korea
| | - Ho Bin Seo
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Anam-dong, Seongbuk-gu, Seoul 136-713, Republic of Korea
| | - Byoung Chan Kim
- Center for Environment, Health and Welfare Research, Korea Institute of Science and Technology (KIST), Department of Energy and Environmental Engineering, Korea University of Science and Technology (UST), Hwarangno 14-gil 5, Seongbuk-gu, Seoul 136-791, Republic of Korea
| | - Sang Kyung Kim
- Center of BioMicrosystems,Korea Institute of Science and Technology (KIST), Hwarangno 14-gil 5, Seongbuk-gu, Seoul 136-791, Republic of Korea
| | - Chang-Seon Song
- Department of Infectious Diseases, College of Veterinary Medicine, Konkuk University, Kwangjin-gu, Seoul 143-701, Republic of Korea
| | - Man Bock Gu
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Anam-dong, Seongbuk-gu, Seoul 136-713, Republic of Korea.
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Abstract
Nanoparticles (NP) are significant to multiple industrial processes, consumer products and medical applications today. The health effects of many different types of NP, however, are largely unknown. The purpose of this study was to test the effects of 50-nm gold NP coated with poly-N-vinylpyrrolidone (PVP) on mouse macrophage and spleen cells with and without lipopolysaccharide (LPS), testing the hypothesis that the NP would modulate immune responses without being overtly toxic. Gold NP had no effect on macrophage viability and, in the absence of LPS, they had no effect on tumor necrosis factor (TNF)-α production as measured by ELISA. The presence of LPS significantly increased the release of TNFα from the macrophages above no-treatment controls, but increasing gold NP concentration led to decreasing release of TNFα. The reactive oxygen species (ROS) produced by exposed macrophages were also reduced compared to untreated controls, both with and without LPS, suggesting some kind of oxygen radical scavenging. In splenocyte cultures, gold NP had no effect alone, but significantly reduced the release of interleukin (IL)-17 and TNFα triggered by LPS. These results suggest that the gold NP used here are not cytotoxic to immune cells at these concentrations, but may affect cellular responses to infection or inflammation by altering the balance of cytokines.
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Affiliation(s)
| | - Jean C Pfau
- b Department of Biological Sciences , Idaho State University , Pocatello , ID , USA
| | - John Gilmer
- b Department of Biological Sciences , Idaho State University , Pocatello , ID , USA
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31
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Hsiao HT, Ni IC, Tzeng SD, Lin WF, Lin CH. The n-type Ge photodetectors with gold nanoparticles deposited to enhance the responsivity. Nanoscale Res Lett 2014; 9:640. [PMID: 25489291 PMCID: PMC4256966 DOI: 10.1186/1556-276x-9-640] [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] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Accepted: 11/12/2014] [Indexed: 06/04/2023]
Abstract
Gold nanoparticles (AuNPs) have been deposited on n-type Ge photodetectors to improve the responsivity. Two different coverage ratios, including 10.5 and 30.3% of AuNPs have been prepared, and the fabricated photodetectors are compared with the control sample. The 1,310-nm responsivities at -2 V of the control, 10.5% AuNPs, and 30.3% AuNPs samples are 465, 556, and 623 mA/W, respectively. The AuNPs could increase the responsivities due to the plasmon resonance. The reflectance spectra of these samples have been measured to verify that plasmon resonance contributes to the forward scattering of incident light. The reflectance decreases with AuNP deposition, and a denser coverage results in a smaller reflectance. The smaller reflectance indicates more light could penetrate into the Ge active layer, and it results in a larger responsivity.
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Affiliation(s)
- Hao-Tse Hsiao
- Department of Opto-electronic Engineering, National Dong Hwa University, Shoufeng, Hualien 974, Taiwan
| | - I-Chih Ni
- Department of Physics, National Dong Hwa University, Shoufeng, Hualien 974, Taiwan
| | - Shien-Der Tzeng
- Department of Physics, National Dong Hwa University, Shoufeng, Hualien 974, Taiwan
| | - Wei-Fan Lin
- Department of Opto-electronic Engineering, National Dong Hwa University, Shoufeng, Hualien 974, Taiwan
| | - Chu-Hsuan Lin
- Department of Opto-electronic Engineering, National Dong Hwa University, Shoufeng, Hualien 974, Taiwan
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32
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Lokina S, Suresh R, Giribabu K, Stephen A, Lakshmi Sundaram R, Narayanan V. Spectroscopic investigations, antimicrobial, and cytotoxic activity of green synthesized gold nanoparticles. Spectrochim Acta A Mol Biomol Spectrosc 2014; 129:484-490. [PMID: 24755638 DOI: 10.1016/j.saa.2014.03.100] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [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: 12/19/2013] [Revised: 03/06/2014] [Accepted: 03/23/2014] [Indexed: 06/03/2023]
Abstract
The gold nanoparticles (AuNPs) were synthesized by using naturally available Punica Granatum fruit extract as reducing and stabilizing agent. The biosynthesized AuNPs was characterized by using UV-Vis, fluorescence, high resolution transmission electron microscopy (HRTEM), X-ray diffraction (XRD), Fourier transform infrared (FTIR) and thermogravimetric (TGA) analysis. The surface plasmon resonance (SPR) band at 585nm confirmed the reduction of auric chloride to AuNPs. The crystalline nature of the biosynthesized AuNPs was confirmed from the HRTEM images, XRD and selected area electron diffraction (SAED) pattern. The HRTEM images showed the mixture of triangular and spherical-like AuNPs having size between 5 and 20nm. The weight loss of the AuNPs was measured by TGA as a function of temperature under a controlled atmosphere. The biomolecules are responsible for the reduction of AuCl4(-) ions and the formation of stable AuNPs which was confirmed by FTIR measurement. The synthesized AuNPs showed an excellent antibacterial activity against Candida albicans (ATCC 90028), Aspergillus flavus (ATCC 10124), Staphylococcus aureus (ATCC 25175), Salmonella typhi (ATCC 14028) and Vibrio cholerae (ATCC 14033). The minimum inhibitory concentration (MIC) of AuNPs was recorded against various microorganisms. Further, the synthesized AuNPs shows an excellent cytotoxic result against HeLa cancer cell lines at different concentrations.
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Affiliation(s)
- S Lokina
- Department of Inorganic Chemistry, University of Madras, Guindy Maraimalai Campus, Chennai 600 025, India
| | - R Suresh
- Department of Inorganic Chemistry, University of Madras, Guindy Maraimalai Campus, Chennai 600 025, India
| | - K Giribabu
- Department of Inorganic Chemistry, University of Madras, Guindy Maraimalai Campus, Chennai 600 025, India
| | - A Stephen
- Department of Nuclear Physics, University of Madras, Guindy Maraimalai Campus, Chennai 600 025, India
| | | | - V Narayanan
- Department of Inorganic Chemistry, University of Madras, Guindy Maraimalai Campus, Chennai 600 025, India.
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Abstract
FGFs, in a complex with their receptors (FGFRs) and heparan sulfate (HS), are responsible for a range of cellular functions, from embryogenesis to metabolism. Both germ line and somatic FGFR mutations are known to play a role in a range of diseases, most notably craniosynestosis dysplasias, dwarfism and cancer. Because of the ability of FGFR signalling to induce cell proliferation, migration and survival, FGFRs are readily co-opted by cancer cells. Mutations in, and amplifications of, these receptors are found in a range of cancers with some of the most striking clinical findings relating to their contribution to pathogenesis and progression of female cancers. Here, we outline the molecular mechanisms of FGFR signalling and discuss the role of this pathway in women's cancers, focusing on breast, endometrial, ovarian and cervical carcinomas, and their associated preclinical and clinical data. We also address the rationale for therapeutic intervention and the need for FGFR-targeted therapy to selectively target cancer cells in view of the fundamental roles of FGF signalling in normal physiology.
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Affiliation(s)
- Abbie E Fearon
- Centre for Tumour Biology, Barts Cancer Institute - A Cancer Research UK Centre of Excellence, Queen Mary University of London, John Vane Science Centre, Charterhouse Square, London EC1M 6BQ, United Kingdom.
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