1
|
Liu Y, Xia G, Xu R, Chen X, Yao C. Eu 3+-based InP/ZnS quantum dot fluorescence platform for multi-color and sensitive visualization of tetracycline. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 313:124167. [PMID: 38498963 DOI: 10.1016/j.saa.2024.124167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Revised: 03/02/2024] [Accepted: 03/14/2024] [Indexed: 03/20/2024]
Abstract
A turn-on type ratiometric fluorescence sensing system of blue quantum dot Eu-MPA-InP/ZnS was established for multi-color visualization determination of tetracycline (TC). Mercaptopropionic acid (MPA)-capped InP/ZnS quantum dots (MPA-InP/ZnS QDs) both modify the hydrophilicity of InP/ZnS QDs and serve as a scaffold for coordinating of Eu3+ ions. The blue fluorescence of Eu-MPA-InP/ZnS at 478 nm is reduced by the TC through the inner filter effect (IFE) under a single excitation wavelength of 365 nm. Rich colour gradients and a highly discriminative colour change were features of this multicolour response to TC, which allowed visual quantification of TC in a dose-dependent manner. Furthermore, by cross-linking Eu-MPA-InP/ZnS with agarose (Aga.), a mouldable Eu-MPA-InP/ZnS@Aga 96-well gel sensing device was designed to serve as a handheld sensor for on-site detection of TC. This probe expands the use of InP QDs in analytical sensing and has been effectively applied to the visual detection of tetracycline in milk and the environment.
Collapse
Affiliation(s)
- Ying Liu
- College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, PR China.
| | - Guopeng Xia
- College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, PR China.
| | - Rentao Xu
- College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, PR China.
| | - Xiong Chen
- College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, PR China.
| | - Cheng Yao
- College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, PR China.
| |
Collapse
|
2
|
Hu B, Zhao W, Chen L, Liu Y, Ma Z, Yan Y, Meng M. Enhanced Molecularly Imprinted Fluorescent Test Strip for Rapid and Visual Detection of Norfloxacin via a Smartphone. Molecules 2024; 29:661. [PMID: 38338405 PMCID: PMC10856333 DOI: 10.3390/molecules29030661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Revised: 01/26/2024] [Accepted: 01/26/2024] [Indexed: 02/12/2024] Open
Abstract
Paper-based test strips with on-site visual detection have become a hot spot in the field of target detection. Yet, low specific surface area and uneven deposition limit the further application of test strips. Herein, a novel "turn-on" ratio of molecularly imprinted membranes (Eu@CDs-MIMs) was successfully prepared based on a Eu complex-doped polyvinylidene fluoride membrane for the selective, rapid and on-site visual detection of norfloxacin (NOR). The formation of surface-imprinted polymer-containing carbon dots (CDs) improves the roughness and hydrophilicity of Eu@CDs-MIMs. Fluorescence lifetimes and UV absorption spectra verified that the fluorescence enhancement of CDs is based on the synergistic effect of charge transfer and hydrogen bonding between CDs and NOR. The fluorescent test strip showed a linear fluorescent response within the concentration range of 5-50 nM with a limit of detection of 1.35 nM and a short response time of 1 min. In comparison with filter paper-based test strips, Eu@CDs-MIMs exhibit a brighter and more uniform fluorescent color change from red to blue that is visible to the naked eye. Additionally, the applied ratio fluorescent test strip was combined with a smartphone to translate RGB values into concentrations for the visual and quantitative detection of NOR and verified the detection results using high-performance liquid chromatography. The portable fluorescent test strip provides a reliable approach for the rapid, visual, and on-site detection of NOR and quinolones.
Collapse
Affiliation(s)
- Bo Hu
- School of Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China; (B.H.); (Z.M.)
| | - Wenshi Zhao
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, China; (W.Z.); (Y.L.)
| | - Li Chen
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China; (L.C.); (Y.Y.)
| | - Yang Liu
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, China; (W.Z.); (Y.L.)
| | - Zhongfei Ma
- School of Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China; (B.H.); (Z.M.)
| | - Yongsheng Yan
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China; (L.C.); (Y.Y.)
| | - Minjia Meng
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China; (L.C.); (Y.Y.)
| |
Collapse
|
3
|
Sayin S. A highly selective and sensitive fluorescence probe for dopamine determination based on a bisquinoline-substituted calix[4]arene carboxylic acid derivative. J Biomol Struct Dyn 2023:1-9. [PMID: 37938142 DOI: 10.1080/07391102.2023.2278076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 09/29/2023] [Indexed: 11/09/2023]
Abstract
Dopamine (DA) at normal levels in the human body exhibits a high potential for maintaining a proper neuron network. However, their abnormalities in humans can bring out aggressive disorders such as Schizophrenia, hypertension, Tourette's syndrome, Alzheimer's disease, bipolar depression, Parkinson's disease, drug addiction and attention-deficit hyperactivity diseases. Hence, in this study, a bis-quinoline-substituted calix[4] arene carboxylic acid derivative (Quin-Calix-CO2H) at cone conformation was developed as an effective fluorescent sensor for the detection of a catecholamine neurotransmitter (dopamine). The structure of Quin-Calix-CO2H was confirmed using 1H-NMR, 13C-NMR, ESI-MS and elemental analysis techniques. The calixarene-based fluorescent sensor (Quin-Calix-CO2H) has shown fluorescence emission at 404 nm under the excitation of 270 nm. Further, biomolecules binding property of Quin-Calix-CO2H against various biomolecules such as L-cysteine (L-Cys), α-D-glucose (D-Glu), (+)-sodium-L-ascorbate (SAA), urea (UR), L-alanine (L-Ala) and dopamine (DA) exhibited that the fluorescent sensor enables selectively and sensitively detection for DA with a remarkable affinity. The probe Quin-Calix-CO2H has shown fluorescence quenching towards DA concentration ranging from 0 to 4.0 µM with a very low limit of detection (LOD) of 88.5 nmol L-1. In addition, the binding constant and stoichiometry as well as the mechanism of quenching have been also determined from the fluorescence data.Communicated by Ramaswamy H. Sarma.
Collapse
Affiliation(s)
- Serkan Sayin
- Department of Environmental Engineering, Giresun University, Giresun, Turkey
| |
Collapse
|
4
|
He Y, Wu S, Yuan Y, Sun Y, Ai Q, Zhou R, Chai G, Chen D, Hu H. Remodeling tumor immunosuppression with molecularly imprinted nanoparticles to enhance immunogenic cell death for cancer immunotherapy. J Control Release 2023; 362:44-57. [PMID: 37579978 DOI: 10.1016/j.jconrel.2023.08.026] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 08/10/2023] [Accepted: 08/11/2023] [Indexed: 08/16/2023]
Abstract
Insufficient tumor accumulation and distribution of immunogenic cell death (ICD) inducer as well as low antitumor immunity severely restrict the therapeutic efficacy of tumor immunotherapy. Tumor associated fibroblasts (TAFs) are important in tumor extracellular matrix (ECM) remodeling and immune evasion. Reprogramming tumor immunosuppressive microenvironment via TAFs regulation might present a promising way for enhanced ICD effect and complete tumor elimination. In this study, TAFs derived tryptase imprinted nanoparticles (DMSN@MIPs) are developed to modulate TAFs and improve tumor immunotherapy effect of doxorubicin liposomes (DOX/LIP). Tryptase (TPS), secreted by mast cells, are found to support tumor growth via transcriptionally activating TAFs to an activated state with increased expression of fibroblast activation marker α-smooth muscle actin (α-SMA). DMSN@MIPs canbe used as artificial antibodies, which effectively neutralize TPS, reduce TAFs activation, promote intra-tumor penetration of DOX/LIP and enhance ICD effect induced by DOX/LIP. In addition, the combined administration system remodels immunosuppressive microenvironment, which not only significantly up-regulates immune cells (DC cells, CD8+T cells, NK cells), but also significantly down-regulates immunosuppressive cells (Treg cells, MDSCs cells). Our results support the DMSN@MIPs canbe a promising approach to improve ICD efficacy in cancer immunotherapy.
Collapse
Affiliation(s)
- Yan He
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang 110016, PR China
| | - Shiyang Wu
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang 110016, PR China
| | - Yibo Yuan
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang 110016, PR China
| | - Yueci Sun
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang 110016, PR China
| | - Qiangjuan Ai
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang 110016, PR China
| | - Ruiqi Zhou
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang 110016, PR China
| | - Guozhi Chai
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang 110016, PR China
| | - Dawei Chen
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang 110016, PR China.
| | - Haiyang Hu
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang 110016, PR China.
| |
Collapse
|
5
|
Shi T, Liu T, Zhang J, Cai D, Zhang Y. A test strip constructed by molecular imprinting for ratiometric fluorescence with ultra-low limit of detection for selective monitoring of Sudan I in chili powder. Mikrochim Acta 2023; 190:263. [PMID: 37332000 DOI: 10.1007/s00604-023-05825-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 05/04/2023] [Indexed: 06/20/2023]
Abstract
An up-conversion molecularly imprinted ratiometric fluorescent probe with a monodisperse nuclear-satellite structure and its test strip are designed which can avoid fluorescent background interference to detect Sudan I in chili powder highly selective and sensitive. The detection mechanism is based on the selective recognition of Sudan I by imprinted cavities on the surface of ratiometric fluorescent probe and the inner filter effect between Sudan I molecules and the emission of up-conversion materials (NaYF4:Yb,Tm). Under optimized experimental conditions, the response of fluorescent ratio signals (F475/F645) of this test strip show a good linear relationship in the range 0.02-50 μM Sudan I. The limits of detection and quantitation are as low as 6 nM and 20 nM, respectively. Sudan I is selectively detected in the presence of fivefold higher concentrations of interfering substances (imprinting factor up to 4.4). Detection of Sudan I in chili powder samples show ultra-low LOD (44.7 ng/g), satisfactory recoveries (94.99-105.5%) and low relative standard deviation (≤ 2.0%). This research offers a reliable strategy and promising scheme for highly selective and sensitive detection of illegal additives in complex food matrix via an up-conversion molecularly imprinted ratiometric fluorescent test strip.
Collapse
Affiliation(s)
- Tian Shi
- State Key Laboratory of Optoelectronic Materials and Technologies, School of Materials Science and Engineering, Sun Yat-Sen University, Guangzhou, 510006, China
| | - Tong Liu
- State Key Laboratory of Optoelectronic Materials and Technologies, School of Materials Science and Engineering, Sun Yat-Sen University, Guangzhou, 510006, China
| | - Jinyuan Zhang
- State Key Laboratory of Optoelectronic Materials and Technologies, School of Materials Science and Engineering, Sun Yat-Sen University, Guangzhou, 510006, China
| | - Da Cai
- State Key Laboratory of Optoelectronic Materials and Technologies, School of Materials Science and Engineering, Sun Yat-Sen University, Guangzhou, 510006, China
| | - Yueli Zhang
- State Key Laboratory of Optoelectronic Materials and Technologies, School of Materials Science and Engineering, Sun Yat-Sen University, Guangzhou, 510006, China.
| |
Collapse
|
6
|
Liu R, Ko CC. Molecularly Imprinted Polymer-Based Luminescent Chemosensors. BIOSENSORS 2023; 13:295. [PMID: 36832061 PMCID: PMC9953969 DOI: 10.3390/bios13020295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 02/07/2023] [Accepted: 02/16/2023] [Indexed: 06/18/2023]
Abstract
Molecularly imprinted polymer (MIP)-based luminescent chemosensors combine the advantages of the highly specific molecular recognition of the imprinting sites and the high sensitivity with the luminescence detection. These advantages have drawn great attention during the past two decades. Luminescent molecularly imprinted polymers (luminescent MIPs) towards different targeted analytes are constructed with different strategies, such as the incorporation of luminescent functional monomers, physical entrapment, covalent attachment of luminescent signaling elements on the MIPs, and surface-imprinting polymerization on the luminescent nanomaterials. In this review, we will discuss the design strategies and sensing approaches of luminescent MIP-based chemosensors, as well as their selected applications in biosensing, bioimaging, food safety, and clinical diagnosis. The limitations and prospects for the future development of MIP-based luminescent chemosensors will also be discussed.
Collapse
|
7
|
Qaisi RM, Akhdhar A, Choi JW, Ahmed El-Said W. A photoluminescence sensor for in-situ monitoring of the dopamine neurotransmitters released from PC12 cells. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 287:122109. [PMID: 36413824 DOI: 10.1016/j.saa.2022.122109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Revised: 10/19/2022] [Accepted: 11/07/2022] [Indexed: 06/16/2023]
Abstract
Constructing simple, stable, fast, and sensitive neurotransmitter-based sensors is a promising tool to diagnose neurological diseases. Dopamine (DA), "a catecholamine neurotransmitter" is important in transmitting nerve impulses. Therefore, great attention is taken to monitor DA concentrations received. The challenge in developing a DA-based sensor is to enhance its stability and sensitivity. Thus, we have used o-phthalaldehyde (OPA)/2-mercapto ethanol (2ME)/mesoporous silica instated of 2ME in solution. Here we have successfully developed a fluorescence DA neurotransmitters sensor. The sensor was used for detecting a wide range of concentrations of DA (5 nM to 5 µM). Effects of pH (4.3-11.4) and temperatures (25-70 °C) on the sensor efficiency were investigated. The detection limit was 1.35 × 10-11 mol/dm3, which is lower than the normal DA level in the central nervous system. The results indicated that using OPA/2ME/MSNPs has long-time stability over a year of its preparation. Moreover, the developed sensor showed high specificity towards DA in the presence of different interferences such as ascorbic acid or another catecholamine neurotransmitter such as γ-aminobutyric acid. Finally, the fabricated biosensor was used to monitor the DA neurotransmitter released from PC12 cells. Hence, it was successfully developed a simple and stable probe for accurate photoluminescence detection of DA neurotransmitters.
Collapse
Affiliation(s)
- Ramy M Qaisi
- University of Jeddah, College of Engineering, Department of Electrical and Electronic Engineering, P.O. Box 80327, Jeddah 21589, Saudi Arabia
| | - Abdullah Akhdhar
- Department of Chemistry, College of Science, University of Jeddah, P.O. Box 80327, Jeddah 21589, Saudi Arabia
| | - Jeong-Woo Choi
- Department of Chemical & Biomolecular Engineering, Sogang University, #1 Shinsu-dong, Mapo-gu, Seoul 121-742, Republic of Korea
| | - Waleed Ahmed El-Said
- Department of Chemistry, College of Science, University of Jeddah, P.O. Box 80327, Jeddah 21589, Saudi Arabia; Department of Chemistry, Faculty of Science, Assiut University, Assiut 71516, Egypt.
| |
Collapse
|
8
|
Hu X, Cao Y, Cai L, Wang H, Fang G, Wang S. A smartphone-assisted optosensing platform based on chromium-based metal-organic framework signal amplification for ultrasensitive and real-time determination of oxytetracycline. JOURNAL OF HAZARDOUS MATERIALS 2023; 444:130395. [PMID: 36402106 DOI: 10.1016/j.jhazmat.2022.130395] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 11/05/2022] [Accepted: 11/12/2022] [Indexed: 06/16/2023]
Abstract
Ultrasensitive and onsite detection of oxytetracycline (OTC) is of vital significance for ensuring public health. Herein, a novel and versatile fluorescence biomimetic nanosensor, Mg,N-CDs@MIL-101@MIP, was elaborately tailored for the assay of OTC. MIL-101 with extraordinarily high surface area and porosity, as a favorable supporter, suppressed self-quenching of Mg,N-CDs and boosted mass transfer rate, realizing signal amplification. As an ultrasensitive signal transducer, high luminescent Mg,N-CDs yielded conspicuous fluorescence responses for OTC, enhancing the sensitivity of Mg,N-CDs@MIL-101@MIP. High-affinity imprinting sites further endowed Mg,N-CDs@MIL-101@MIP with superior anti-interference ability and reusability. Given prominent merits, Mg,N-CDs@MIL-101@MIP demonstrated a good linear range (0.05-40 μg mL-1) with a lower limit of detection (16.8 ng mL-1), supplying high accessibility to realize ultrasensitive and highly selective measurement of OTC in samples. Additionally, to attain precise onsite profiling of OTC, an intelligent sensing platform was developed by integrating Mg,N-CDs@MIL-101@MIP with a portable smartphone-assisted optical device. As both signal reader and analyzer, smartphone can instantly capture concentration-dependent fluorescent images and accurately digitize them, accomplishing quantitative analysis of OTC. More delightfully, the portable platform was utilized for visual determination of OTC in milk samples with satisfactory results, offering a promising tool for the high-performance onsite evaluation of food safety and environmental health.
Collapse
Affiliation(s)
- Xuelian Hu
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Yichuan Cao
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Lin Cai
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Haiyang Wang
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Guozhen Fang
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin 300457, China.
| | - Shuo Wang
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin 300457, China; Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin 300071, China.
| |
Collapse
|
9
|
Huang C, Wang X, Yang P, Shi S, Duan G, Liu X, Li Y. Size Regulation of Polydopamine Nanoparticles by Boronic Acid and Lewis Base. Macromol Rapid Commun 2023; 44:e2100916. [PMID: 35080287 DOI: 10.1002/marc.202100916] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 01/13/2022] [Indexed: 01/11/2023]
Abstract
Size regulation of polydopamine nanoparticles (PDA NPs) is vital to melanin-inspired materials. The general strategy usually focuses on tuning of the reaction parameters which could affect the dopamine (DA) monomer polymerization process, such as pH, temperature, monomer concentration, etc. The reaction between boronic acids and catechols to form boronic esters has been widely applied in many fields, but little attention has been paid in the size regulation of PDA NPs. Here, it is speculated that the fine size regulation of PDA NPs can be directly achieved by using boronic acids and Lewis base molecules. It is found that these issues could indeed significantly affect the stability of the boronic esters formed by boronic acids and DA, which may further inhibit the monomer polymerization kinetics and tune the particle size of the resulting PDA NPs. It is also found that the several intrinsic properties of PDA NPs such as the free radical scavenging ability, UV spectral absorption, photothermal behavior, and structural color all change with the particle size. It is believed that this work can provide new opportunities for fabricating melanin-inspired PDA NPs with well controlled size and properties.
Collapse
Affiliation(s)
- Chuhao Huang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Xianheng Wang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Peng Yang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Shun Shi
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Gaigai Duan
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, 210037, China
| | - Xianhu Liu
- National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou, 450002, China
| | - Yiwen Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| |
Collapse
|
10
|
Xing R, Xue T, Ye P, Yang L, Wang R, Chen X, Hu S. pH-Responsive epitope-imprinted magnetic nanoparticles for selective separation and extraction of chlorogenic acid and caffeic acid in traditional Chinese medicines. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2022; 14:4931-4937. [PMID: 36441178 DOI: 10.1039/d2ay01667b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Chlorogenic acid and caffeic acid often coexist in traditional Chinese medicines (TCMs) and play roles as antioxidation, antiviral, antitumor and anti-inflammatory agents. Due to their low content and the presence of structural analogues, they cannot be effectively separated by conventional extraction methods. Molecularly imprinted polymers, as synthesized receptors with antibody-like binding properties, have significant advantages in separating structural analogues. However, the harsh imprinting conditions easily induced the degradation of chlorogenic acid. Therefore, caffeic acid was used as an epitope template to replace chlorogenic acid for imprinting. Boronic acid-functionalized magnetic nanoparticles (MNPs) were selected as substrates, which could not only facilitate the immobilization and removal of the templates by pH regulation, but also achieve rapid separation under an external magnetic field. Tetraethyl orthosilicate was selected as an imprinting monomer which allowed for precise control of the thickness of the imprinting layer by adjusting the imprinting time. The prepared epitope-imprinted MNPs showed excellent specificity, in combination with high performance liquid chromatography, have been successfully applied to the selective separation and detection of chlorogenic acid and caffeic acid in TCMs.
Collapse
Affiliation(s)
- Rongrong Xing
- School of Pharmacy, Shanxi Medical University, 56 Xinjian South Road, Yingze District, Taiyuan 030001, Shanxi, China.
| | - Tingyu Xue
- School of Pharmacy, Shanxi Medical University, 56 Xinjian South Road, Yingze District, Taiyuan 030001, Shanxi, China.
| | - Peng Ye
- School of Pharmacy, Shanxi Medical University, 56 Xinjian South Road, Yingze District, Taiyuan 030001, Shanxi, China.
| | - Li Yang
- School of Pharmacy, Shanxi Medical University, 56 Xinjian South Road, Yingze District, Taiyuan 030001, Shanxi, China.
| | - Runqin Wang
- School of Pharmacy, Shanxi Medical University, 56 Xinjian South Road, Yingze District, Taiyuan 030001, Shanxi, China.
| | - Xuan Chen
- School of Pharmacy, Shanxi Medical University, 56 Xinjian South Road, Yingze District, Taiyuan 030001, Shanxi, China.
| | - Shuang Hu
- School of Pharmacy, Shanxi Medical University, 56 Xinjian South Road, Yingze District, Taiyuan 030001, Shanxi, China.
| |
Collapse
|
11
|
Li J, Sun D. Molecularly Imprinted Ratiometric Fluorescence Nanosensors. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:13305-13312. [PMID: 36278924 DOI: 10.1021/acs.langmuir.2c01925] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Molecularly imprinted ratiometric fluorescence (MIR-FL) nanosensors feature recognition selectivity, detection sensitivity, application universality, visualization accuracy, and device portability, and have gained popularity. However, the fluorescence intensity, nanostructure, color range, and practical application of the sensor still face severe difficulties to be solved. New strategies combined with various technologies have been developed to construct MIR-FL nanosensors for expanded applications. This Perspective highlights current resarch challenges and future prospects involving constructions and applications of MIR-FL nanosensors including dual-emission and triple-emission modes. The postimprinting mixing/modification strategies, microdevices, and multitarget detection are focused, and technology synergy, sensitivity/reproducibility improvement, application diversity/portability, etc. are proposed.
Collapse
Affiliation(s)
- Jinhua Li
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Shandong Key Laboratory of Coastal Environmental Processes, Shandong Research Center for Coastal Environmental Engineering and Technology, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
- Laboratory for Marine Biology and Biotechnology, Pilot National Laboratory for Marine Science and Technology, Qingdao 266237, China
| | - Dani Sun
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Shandong Key Laboratory of Coastal Environmental Processes, Shandong Research Center for Coastal Environmental Engineering and Technology, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| |
Collapse
|
12
|
Shi T, Cheng Z, Liu T, Ye Z, Zhang Y. An up-conversion test paper based on "switch-off" of fluorescence is constructed to sensitively and selectively detect cancer-causing dye Sudan III in lipstick. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 280:121515. [PMID: 35728403 DOI: 10.1016/j.saa.2022.121515] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Revised: 05/31/2022] [Accepted: 06/13/2022] [Indexed: 06/15/2023]
Abstract
Cancer-causing dye Sudan III is banned adding to cosmetics, so a method for detecting trace Sudan III in cosmetics is established. A single dispersed up-conversion molecularly imprinted fluorescent nanoprobe is constructed and coated on the filter paper. The mechanism for detecting Sudan III by this composite fluorescent nanoprobes-paper is systematically analyzed. The fluorescent response (max emission peak is at 541 nm) is linearly related to 10-1000 nM Sudan III, and Sudan III can be selectively recognized (imprinting factor increased to 4.1). The limit of detection and quantitation are further reduced to 2.89 nM and 9.63 nM, respectively. The recoveries of Sudan III in lipstick samples are between 93.18 and 108.3%, and relative standard deviation is less than or equal to 4.6%. Trace Sudan III in cosmetics are detected accurately and sensitively by this method due to up-conversion nanoparticles with little interference of background fluorescence and molecularly imprinted polymers with selective enrichment.
Collapse
Affiliation(s)
- Tian Shi
- State Key Laboratory of Optoelectronic Materials and Technologies, School of Materials Science and Engineering, Sun Yat-Sen University, Guangzhou 510006, China
| | - Zhiyuan Cheng
- State Key Laboratory of Optoelectronic Materials and Technologies, School of Materials Science and Engineering, Sun Yat-Sen University, Guangzhou 510006, China
| | - Tong Liu
- State Key Laboratory of Optoelectronic Materials and Technologies, School of Materials Science and Engineering, Sun Yat-Sen University, Guangzhou 510006, China
| | - Zhiqi Ye
- State Key Laboratory of Optoelectronic Materials and Technologies, School of Materials Science and Engineering, Sun Yat-Sen University, Guangzhou 510006, China
| | - Yueli Zhang
- State Key Laboratory of Optoelectronic Materials and Technologies, School of Materials Science and Engineering, Sun Yat-Sen University, Guangzhou 510006, China.
| |
Collapse
|
13
|
Ostovan A, Arabi M, Wang Y, Li J, Li B, Wang X, Chen L. Greenificated Molecularly Imprinted Materials for Advanced Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2203154. [PMID: 35734896 DOI: 10.1002/adma.202203154] [Citation(s) in RCA: 85] [Impact Index Per Article: 42.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 06/12/2022] [Indexed: 06/15/2023]
Abstract
Molecular imprinting technology (MIT) produces artificial binding sites with precise complementarity to substrates and thereby is capable of exquisite molecular recognition. Over five decades of evolution, it is predicted that the resulting host imprinted materials will overtake natural receptors for research and application purposes, but in practice, this has not yet been realized due to the unsustainability of their life cycles (i.e., precursors, creation, use, recycling, and end-of-life). To address this issue, greenificated molecularly imprinted polymers (GMIPs) are a new class of plastic antibodies that have approached sustainability by following one or more of the greenification principles, while also demonstrating more far-reaching applications compared to their natural counterparts. In this review, the most recent developments in the delicate design and advanced application of GMIPs in six fast-growing and emerging fields are surveyed, namely biomedicine/therapy, catalysis, energy harvesting/storage, nanoparticle detection, gas sensing/adsorption, and environmental remediation. In addition, their distinct features are highlighted, and the optimal means to utilize these features for attaining incredibly far-reaching applications are discussed. Importantly, the obscure technical challenges of the greenificated MIT are revealed, and conceivable solutions are offered. Lastly, several perspectives on future research directions are proposed.
Collapse
Affiliation(s)
- Abbas Ostovan
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Shandong Key Laboratory of Coastal Environmental Processes, Shandong Research Center for Coastal Environmental Engineering and Technology, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, China
- Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, 266071, China
| | - Maryam Arabi
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Shandong Key Laboratory of Coastal Environmental Processes, Shandong Research Center for Coastal Environmental Engineering and Technology, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, China
- Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, 266071, China
| | - Yunqing Wang
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Shandong Key Laboratory of Coastal Environmental Processes, Shandong Research Center for Coastal Environmental Engineering and Technology, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, China
- Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, 266071, China
| | - Jinhua Li
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Shandong Key Laboratory of Coastal Environmental Processes, Shandong Research Center for Coastal Environmental Engineering and Technology, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, China
- Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, 266071, China
| | - Bowei Li
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Shandong Key Laboratory of Coastal Environmental Processes, Shandong Research Center for Coastal Environmental Engineering and Technology, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, China
- Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, 266071, China
| | - Xiaoyan Wang
- School of Pharmacy, Binzhou Medical University, Yantai, 264003, China
| | - Lingxin Chen
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Shandong Key Laboratory of Coastal Environmental Processes, Shandong Research Center for Coastal Environmental Engineering and Technology, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, China
- Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, 266071, China
- Laboratory for Marine Biology and Biotechnology, Pilot National Laboratory for Marine Science and Technology, Qingdao, 266237, China
- School of Environmental & Municipal Engineering, Qingdao University of Technology, Qingdao, 266033, China
| |
Collapse
|
14
|
Orbay S, Kocaturk O, Sanyal R, Sanyal A. Molecularly Imprinted Polymer-Coated Inorganic Nanoparticles: Fabrication and Biomedical Applications. MICROMACHINES 2022; 13:1464. [PMID: 36144087 PMCID: PMC9501141 DOI: 10.3390/mi13091464] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 08/27/2022] [Accepted: 08/29/2022] [Indexed: 06/16/2023]
Abstract
Molecularly imprinted polymers (MIPs) continue to gain increasing attention as functional materials due to their unique characteristics such as higher stability, simple preparation, robustness, better binding capacity, and low cost. In particular, MIP-coated inorganic nanoparticles have emerged as a promising platform for various biomedical applications ranging from drug delivery to bioimaging. The integration of MIPs with inorganic nanomaterials such as silica (SiO2), iron oxide (Fe3O4), gold (Au), silver (Ag), and quantum dots (QDs) combines several attributes from both components to yield highly multifunctional materials. These materials with a multicomponent hierarchical structure composed of an inorganic core and an imprinted polymer shell exhibit enhanced properties and new functionalities. This review aims to provide a general overview of key recent advances in the fabrication of MIPs-coated inorganic nanoparticles and highlight their biomedical applications, including drug delivery, biosensor, bioimaging, and bioseparation.
Collapse
Affiliation(s)
- Sinem Orbay
- Institute of Biomedical Engineering, Bogazici University, Istanbul 34684, Turkey
| | - Ozgur Kocaturk
- Institute of Biomedical Engineering, Bogazici University, Istanbul 34684, Turkey
| | - Rana Sanyal
- Department of Chemistry, Center for Life Sciences and Technologies, Bogazici University, Istanbul 34342, Turkey
| | - Amitav Sanyal
- Department of Chemistry, Center for Life Sciences and Technologies, Bogazici University, Istanbul 34342, Turkey
| |
Collapse
|
15
|
Song H, Wang F, Zhao Y, Gao R, He Y, Yan Q, Chen X, Pfefferle LD, Xu S, Sheng Y. Spatially-directed magnetic molecularly imprinted polymers with good anti-interference for simultaneous enrichment and detection of dual disease-related bio-indicators. NANOSCALE 2022; 14:11343-11352. [PMID: 35894543 DOI: 10.1039/d2nr03356a] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
As the changes of biomarkers directly reflect the occurrence of degenerative diseases, accurate detection of biomarkers is of great significance for disease diagnosis and control. However, single index detection has high uncertainties to accurately reflect the pathological characteristics because of the complexity of the human internal environment and the extremely trace concentration of indicators. To this end, a method for simultaneous detection of dual-biomarkers based on anti-interference magnetic molecularly imprinted polymers (D-mag-MIPs) is thereby proposed, and successfully applied in human urine analysis for the detection of Parkinson's disease bio-indicators 4-dihydroxyphenylacetic acid (DOPAC) and dopamine (DA). In this work, carboxyl functionalized ferric oxide served as a magnetic core, laying a solid foundation for batch detection. Hyperbranched polyethylenimine, whose abundant amino groups can provide multiple interaction forces to templates with high affinity, is employed as a functional monomer. Relative to single-template MIPs, D-mag-MIPs achieve the detection of dual bio-indicators in a one-time test, reducing the false positive result probability and enhancing the detection accuracy. The proposed methodology has been evaluated to exhibit good anti-interference, satisfactory precision, low detection limits, wide linear ranges and fast batch detection for DA and DOPAC. This work thus offers an alternative and efficient pathway for convenient batch detection of dual bio-indicators from biofluids at once.
Collapse
Affiliation(s)
- Huijia Song
- School of Chemistry, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China.
| | - Feng Wang
- School of Chemistry, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China.
| | - Yayun Zhao
- School of Chemistry, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China.
| | - Ruixia Gao
- School of Chemistry, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China.
| | - Yulian He
- University of Michigan-Shanghai Jiaotong University Joint Institute, Shanghai 200240, China
| | - Qing Yan
- School of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
| | - Xiaoyi Chen
- School of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
| | - Lisa D Pfefferle
- Department of Chemical & Environmental Engineering, Yale University, New Haven, Connecticut 06520-8286, USA
| | - Silong Xu
- School of Chemistry, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China.
| | - Ying Sheng
- School of Chemistry, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China.
- Department of Otolaryngology Head and Neck Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710004, China.
| |
Collapse
|
16
|
Wang J, Li X, Zhang R, Fu B, Chen M, Ye M, Liu W, Xu J, Pan G, Zhang H. A molecularly imprinted antibiotic receptor on magnetic nanotubes for the detection and removal of environmental oxytetracycline. J Mater Chem B 2022; 10:6777-6783. [PMID: 35583296 DOI: 10.1039/d2tb00497f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The detection and elimination of antibiotic contaminants, such as oxytetracycline (OTC), a broad-spectrum tetracycline antibiotic, would be of help in efficient environmental monitoring, agriculture and food safety tests. Nevertheless, currently available methodologies, which mostly rely on the chromatographic separation of OTC, suffer from low sensitivity and complicated processes. Thus, we report here on the design and synthesis of a fluorescent sensor based on molecularly imprinted magnetic halloysite nanotubes (referred to as MHNTs@FMIPs) for the effective detection and purification of OTC in actual environmental samples. The fluorescence of the MHNTs@FMIPs was quenched obviously upon loading with OTC, covering a linear concentration range of 10-300 nM with a limit of detection (LOD) as low as 8.1 nM. The imprinting factor is 4.47, indicating an excellent specificity. Furthermore, the MHNTs@FMIPs can be applied to the quantitative detection of OTC (5 cycles of 300 nM) in aquaculture wastewater and Yangtze River water, demonstrating their immense application potential.
Collapse
Affiliation(s)
- Jixiang Wang
- Sino-European School of Technology of Shanghai University, Shanghai University, CN-200444, Shanghai, P. R. China. .,Pharmaceutical Sciences Laboratory, Åbo Akademi University, FI-20520, Turku, Finland. .,Turku Bioscience Centre, University of Turku and Åbo Akademi University, FI-20520, Turku, Finland
| | - Xiaolei Li
- Sino-European School of Technology of Shanghai University, Shanghai University, CN-200444, Shanghai, P. R. China.
| | - Rong Zhang
- Department of Interventional Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, CN-200233, Shanghai, China
| | - Bingjie Fu
- Sino-European School of Technology of Shanghai University, Shanghai University, CN-200444, Shanghai, P. R. China.
| | - Mingcan Chen
- Sino-European School of Technology of Shanghai University, Shanghai University, CN-200444, Shanghai, P. R. China.
| | - Mengxue Ye
- Sino-European School of Technology of Shanghai University, Shanghai University, CN-200444, Shanghai, P. R. China.
| | - Wanyu Liu
- Sino-European School of Technology of Shanghai University, Shanghai University, CN-200444, Shanghai, P. R. China.
| | - Jingjing Xu
- Sino-European School of Technology of Shanghai University, Shanghai University, CN-200444, Shanghai, P. R. China.
| | - Guoqing Pan
- Institute for Advanced Materials, School of Materials Science and Engineering, Jiangsu University, Zhenjiang, 212013, Jiangsu, China.
| | - Hongbo Zhang
- Pharmaceutical Sciences Laboratory, Åbo Akademi University, FI-20520, Turku, Finland. .,Turku Bioscience Centre, University of Turku and Åbo Akademi University, FI-20520, Turku, Finland
| |
Collapse
|
17
|
Çaktü K, Özgür E, Bereli N, Denizli A. Diclofenac Imprinted Surface Plasmon Resonance (SPR) Based Sensor. ChemistrySelect 2022. [DOI: 10.1002/slct.202200436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Kıvılcım Çaktü
- Hacettepe University Faculty of Science Department of Chemistry Ankara Turkey
| | - Erdoğan Özgür
- Hacettepe University Faculty of Science Department of Chemistry Ankara Turkey
| | - Nilay Bereli
- Hacettepe University Faculty of Science Department of Chemistry Ankara Turkey
| | - Adil Denizli
- Hacettepe University Faculty of Science Department of Chemistry Ankara Turkey
| |
Collapse
|
18
|
Wu L, Li X, Miao H, Xu J, Pan G. State of the art in development of molecularly imprinted biosensors. VIEW 2022. [DOI: 10.1002/viw.20200170] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Affiliation(s)
- Licheng Wu
- Sino‐European School of Technology of Shanghai University Shanghai University Shanghai China
| | - Xiaolei Li
- Sino‐European School of Technology of Shanghai University Shanghai University Shanghai China
| | - Haohan Miao
- Institute for Advanced Materials, School of Materials Science and Engineering Jiangsu University Zhenjiang Jiangsu China
| | - Jingjing Xu
- Sino‐European School of Technology of Shanghai University Shanghai University Shanghai China
| | - Guoqing Pan
- Institute for Advanced Materials, School of Materials Science and Engineering Jiangsu University Zhenjiang Jiangsu China
| |
Collapse
|
19
|
Krämer J, Kang R, Grimm LM, De Cola L, Picchetti P, Biedermann F. Molecular Probes, Chemosensors, and Nanosensors for Optical Detection of Biorelevant Molecules and Ions in Aqueous Media and Biofluids. Chem Rev 2022; 122:3459-3636. [PMID: 34995461 PMCID: PMC8832467 DOI: 10.1021/acs.chemrev.1c00746] [Citation(s) in RCA: 109] [Impact Index Per Article: 54.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Synthetic molecular probes, chemosensors, and nanosensors used in combination with innovative assay protocols hold great potential for the development of robust, low-cost, and fast-responding sensors that are applicable in biofluids (urine, blood, and saliva). Particularly, the development of sensors for metabolites, neurotransmitters, drugs, and inorganic ions is highly desirable due to a lack of suitable biosensors. In addition, the monitoring and analysis of metabolic and signaling networks in cells and organisms by optical probes and chemosensors is becoming increasingly important in molecular biology and medicine. Thus, new perspectives for personalized diagnostics, theranostics, and biochemical/medical research will be unlocked when standing limitations of artificial binders and receptors are overcome. In this review, we survey synthetic sensing systems that have promising (future) application potential for the detection of small molecules, cations, and anions in aqueous media and biofluids. Special attention was given to sensing systems that provide a readily measurable optical signal through dynamic covalent chemistry, supramolecular host-guest interactions, or nanoparticles featuring plasmonic effects. This review shall also enable the reader to evaluate the current performance of molecular probes, chemosensors, and nanosensors in terms of sensitivity and selectivity with respect to practical requirement, and thereby inspiring new ideas for the development of further advanced systems.
Collapse
Affiliation(s)
- Joana Krämer
- Institute
of Nanotechnology, Karlsruhe Institute of
Technology (KIT), Hermann-von-Helmholtz Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Rui Kang
- Institute
of Nanotechnology, Karlsruhe Institute of
Technology (KIT), Hermann-von-Helmholtz Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Laura M. Grimm
- Institute
of Nanotechnology, Karlsruhe Institute of
Technology (KIT), Hermann-von-Helmholtz Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Luisa De Cola
- Institute
of Nanotechnology, Karlsruhe Institute of
Technology (KIT), Hermann-von-Helmholtz Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
- Dipartimento
DISFARM, University of Milano, via Camillo Golgi 19, 20133 Milano, Italy
- Department
of Molecular Biochemistry and Pharmacology, Instituto di Ricerche Farmacologiche Mario Negri, IRCCS, 20156 Milano, Italy
| | - Pierre Picchetti
- Institute
of Nanotechnology, Karlsruhe Institute of
Technology (KIT), Hermann-von-Helmholtz Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
- P.P.: email,
| | - Frank Biedermann
- Institute
of Nanotechnology, Karlsruhe Institute of
Technology (KIT), Hermann-von-Helmholtz Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
- F.B.: email,
| |
Collapse
|
20
|
Tian LL, Li CH, Ye QC, Li YF, Huang CZ, Zhan L, Wang DM, Zhen SJ. A centrifugal microfluidic chip for point-of-care testing of staphylococcal enterotoxin B in complex matrices. NANOSCALE 2022; 14:1380-1385. [PMID: 35018396 DOI: 10.1039/d1nr05599b] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Staphylococcal enterotoxin B (SEB) is a typical biological toxin that causes food poisoning. Currently reported SEB detection methods have the drawbacks of sophisticated sample preparation and being time-consuming and labor-intensive. Herein, we propose a strategy based on an immune sandwich structure operating on a centrifugal microfluidic chip for point-of-care testing (POCT) of SEB. The fluorescent microparticle-labeled primary antibody (CM-EUs-Ab1), capture antibody (CAb), and goat anti-mouse IgG antibody (SAb) were modified on the bond area, T-area, and C-area, respectively. When SEB was added, it first reacted with the CM-EUs-Ab1 through the specific recognition between SEB and the Ab1. Then, under capillarity, the conjugates of SEB and the CM-EUs-Ab1 were captured by the CAb when they flowed to the T-area, and the remaining CM-EUs-Ab1 bound with the SAb in the C-area. Finally, this chip was put into a dry fluorescence detection analyzer for centrifugation and on-site detection of SEB. The fluorescence intensity ratio of the T-area to the C-area was positively correlated with the concentration of SEB. The resulting linear range was 0.1-250 ng mL-1, and the limit of detection (3σ/k) was 68 pg mL-1. This POCT platform only needs 20 μL of sample and can realize the full process of detection within 12 min. This chip also exhibits good stability for 35 days. Additionally, the proposed method has been successfully utilized for the detection of SEB in urine, milk, and juice without any pre-treatment of the samples. Thus, this platform is expected to be applied to food safety testing and clinical diagnosis.
Collapse
Affiliation(s)
- Li Li Tian
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China.
| | - Chun Hong Li
- Key Laboratory of Luminescent and Real-Time Analytical System (Southwest University), Chongqing Science and Technology Bureau, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, P. R. China
| | - Qi Chao Ye
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China.
| | - Yuan Fang Li
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China.
| | - Cheng Zhi Huang
- Key Laboratory of Luminescent and Real-Time Analytical System (Southwest University), Chongqing Science and Technology Bureau, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, P. R. China
| | - Lei Zhan
- Key Laboratory of Luminescent and Real-Time Analytical System (Southwest University), Chongqing Science and Technology Bureau, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, P. R. China
| | - Dong Mei Wang
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China.
| | - Shu Jun Zhen
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China.
| |
Collapse
|
21
|
Self-cleaning electrochemical protein-imprinting biosensor with a dual-driven switchable affinity for sensing bovine serum albumin. Talanta 2022; 237:122893. [PMID: 34736709 DOI: 10.1016/j.talanta.2021.122893] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Revised: 09/11/2021] [Accepted: 09/18/2021] [Indexed: 01/31/2023]
Abstract
A facile, universal and highly efficient approach for producing a self-cleaning electrochemical protein-imprinting biosensor based on dual stimuli-responsive memory hydrogels via free-radical polymerisation is described. As confirmed by static contact angle and scanning electron microscopy results, the imprinted hydrogels exhibited reversible conformational changes after being simulated by an external electric field and temperature. By exploring the properties of imprinted hydrogels for sensing applications, the electrochemical protein-imprinting biosensor was originally fabricated on a glassy carbon electrode using the drop-casting method. Because of the trigger gates of the temperature and electric field, the biosensor demonstrated excellent self-cleaning behaviours compared with other corresponding electric-field or thermo-responsive imprinting biosensors. Moreover, the prepared biosensor exhibited satisfactory selectivity, good biocompatibility, comparable limits of detection and linearity ranges as well as acceptable stability toward bovine serum albumin. Consequently, the biosensor was successfully employed to simultaneously enrich, detect and extract bovine serum albumin from complex biological samples; the process was dynamic, controllable and harmless to the template under the dual external stimuli. Thus, the proposed biosensor exhibited considerable potential in controlled drug/chemical delivery and smart sensing for bioanalyses involving dual stimuli-responsive behaviours.
Collapse
|
22
|
Xu Y, Huang T, Hu B, Meng M, Yan Y. Molecularly imprinted polydopamine coated CdTe@SiO2 as a ratiometric fluorescent probe for ultrafast and visual p-nitrophenol monitoring. Microchem J 2022. [DOI: 10.1016/j.microc.2021.106899] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
|
23
|
Mustafa YL, Keirouz A, Leese HS. Molecularly Imprinted Polymers in Diagnostics: Accessing Analytes in Biofluids. J Mater Chem B 2022; 10:7418-7449. [DOI: 10.1039/d2tb00703g] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bio-applied molecularly imprinted polymers (MIPs) are biomimetic materials with tailor-made synthetic recognition sites, mimicking biological counterparts known for their sensitive and selective analyte detection. MIPs, specifically designed for biomarker analysis...
Collapse
|
24
|
Saad H, Nour El-Dien FA, El-Gamel NEA, Abo Dena AS. Matrix-dispersed magnetic molecularly-imprinted polyaniline for the effective removal of chlorpyrifos pesticide from contaminated water. RSC Adv 2021; 11:39768-39780. [PMID: 35494104 PMCID: PMC9044561 DOI: 10.1039/d1ra07833j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2021] [Accepted: 12/06/2021] [Indexed: 12/11/2022] Open
Abstract
We report a new adsorbent nanocomposite material based on matrix-dispersed superparamagnetic iron oxide nanoparticles (SPIONs) in molecularly-imprinted polyaniline for the removal of chlorpyrifos (CPF), a hazardous organophosphate pesticide, from water. The synthesized magnetic molecularly-imprinted polymer (MMIP) was characterized by FTIR spectroscopy, XRD, magnetic susceptibility, DLS, zeta potential measurement, SEM and high-resolution TEM imaging. The average size of the naked SPIONs ranges from 15 to 30 nm according to the high-resolution TEM analysis. Moreover, the adsorption kinetics, thermodynamic parameters (ΔG, ΔH and ΔS), adsorption isotherms and rebinding conditions were investigated in detail. The proposed MMIP has an imprinting factor of 1.64. In addition, it showed a high experimental adsorption capacity of 1.77 mg g−1 and a removal efficiency of nearly 80%. The fabricated MMIP material demonstrated excellent magnetic susceptibility allowing for easy separation using an external magnetic field. The adsorption mechanism of CPF onto the MMIP adsorbent followed the second-order kinetics model and fitted to the Temkin adsorption isotherm. By studying the adsorption thermodynamics, negative ΔG values (−1.955 kJ mol−1 at room temperature) were obtained revealing that the adsorption process is spontaneous. Furthermore, the maximum adsorption capacity was obtained at room temperature (ca. 303 K), neutral pH and using a high CPF concentration. An efficient magnetic molecularly-imprinted polymer adsorbent for removal of chlorpyrifos organophosphate pesticide from water is reported.![]()
Collapse
Affiliation(s)
- Hadeel Saad
- Chemistry Department, Faculty of Science, Cairo University Giza 12613 Egypt
| | - F A Nour El-Dien
- Chemistry Department, Faculty of Science, Cairo University Giza 12613 Egypt
| | - Nadia E A El-Gamel
- Chemistry Department, Faculty of Science, Cairo University Giza 12613 Egypt
| | - Ahmed S Abo Dena
- Pharmaceutical Chemistry Department, National Organization for Drug Control and Research (NODCAR) Giza Egypt.,Faculty of Oral and Dental Medicine, Future University in Egypt (FUE) New Cairo Egypt
| |
Collapse
|
25
|
Tse Sum Bui B, Haupt K. Molecularly Imprinted Polymer Hydrogel Nanoparticles: Synthetic Antibodies for Cancer Diagnosis and Therapy. Chembiochem 2021; 23:e202100598. [PMID: 34873807 DOI: 10.1002/cbic.202100598] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 12/06/2021] [Indexed: 02/06/2023]
Abstract
Cancer is a leading cause of death worldwide and according to the World Health Organization (WHO) accounted for 10 million deaths in 2020. Promising theranostic (therapy and diagnostic) agents in the treatment of cancer are nanomaterials, which have come to the forefront because of their small size approaching those of protein complexes in the human body, and of their easy functionalization giving access to nanocomposite materials with diverse functions (fluorescence, magnetic, stimuli-responsiveness, etc.), and improved biocompatibility. Among them, affinity nanoparticles, often decorated with highly specific targeting ligands such as antibodies, aptamers, lectins and peptides, have enabled enhanced binding and exquisite recognition of biomarkers overexpressed in cancer cells. In this review, we describe an emerging class of targeting ligands, molecularly imprinted polymer hydrogel nanoparticles for their application in the early detection of disease, with the aim to improve diagnosis and treatment.
Collapse
Affiliation(s)
- Bernadette Tse Sum Bui
- CNRS Enzyme and Cell Engineering Laboratory, Université de Technologie de Compiègne, Rue du Docteur Schweitzer, CS 60319, 60203, Compiègne Cedex, France
| | - Karsten Haupt
- CNRS Enzyme and Cell Engineering Laboratory, Université de Technologie de Compiègne, Rue du Docteur Schweitzer, CS 60319, 60203, Compiègne Cedex, France
| |
Collapse
|
26
|
Çorman ME, Cetinkaya A, Ozcelikay G, Özgür E, Atici EB, Uzun L, Ozkan SA. A porous molecularly imprinted nanofilm for selective and sensitive sensing of an anticancer drug ruxolitinib. Anal Chim Acta 2021; 1187:339143. [PMID: 34753569 DOI: 10.1016/j.aca.2021.339143] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 09/09/2021] [Accepted: 10/01/2021] [Indexed: 01/25/2023]
Abstract
A novel methodology has been applied to generate a porous molecularly imprinted material for highly selective and sensitive recognition of Janus kinase inhibitor ruxolitinib (RUX). The porous material-based nucleobase-derivative functional monomer was developed by a photopolymerization method. The thymine methacrylate (ThyM) as a functional monomer was synthesized and copolymerized with 2-hydroxyethyl methacrylate (HEMA) in the presence of ethylene glycol dimethacrylate (EGDMA) onto the glassy carbon electrode [glassy carbon electrode/molecularly imprinted polymer@poly(2-hydroxyethyl methacrylate-co-thymine methacrylate), (GCE/MIP@PHEMA-ThyM)] for the first time. The presence of ThyM results in the functional groups in imprinting binding sites, while the presence of poly(vinyl alcohol) (PVA) allows to generate porous materials for sensitive sensing. The characterization of GCE/MIP@PHEMA-ThyM was investigated by Fourier transform infrared (FT-IR) spectroscopy, scanning electron microscopy (SEM), and impedance spectroscopy technique. Then, the porous MIP modified glassy carbon electrode was optimized with effecting parameters including removal agent, removal time, and incubation time to get a better response for RUX. Under well-controlled optimum conditions, the GCE/MIP@PHEMA-ThyM linearly responded to the RUX concentration up to 0.01 pM at the limit of detection (LOD) of 0.00191 pM. The non-imprinted polymer (NIP) was also prepared to serve as a control in the same way but without the template. The proposed method improves the accessibility of binding sites by generating the porous material resulting in highly selective and sensitive recognition of drugs in the pharmaceutical dosage form and synthetic human serum samples.
Collapse
Affiliation(s)
- M Emin Çorman
- Ankara University, Faculty of Pharmacy, Department of Analytical Chemistry, Ankara, Turkey; Sinop University, Faculty of Science and Arts, Department of Chemistry, Sinop, Turkey.
| | - Ahmet Cetinkaya
- Ankara University, Faculty of Pharmacy, Department of Analytical Chemistry, Ankara, Turkey
| | - Goksu Ozcelikay
- Ankara University, Faculty of Pharmacy, Department of Analytical Chemistry, Ankara, Turkey
| | - Erdoğan Özgür
- Hacettepe University, Advanced Technologies Application and Research Center, Ankara, Turkey
| | | | - Lokman Uzun
- Hacettepe University, Faculty of Science, Department of Chemistry, Ankara, Turkey
| | - Sibel A Ozkan
- Ankara University, Faculty of Pharmacy, Department of Analytical Chemistry, Ankara, Turkey.
| |
Collapse
|
27
|
Xu J, Miao H, Zou L, Tse Sum Bui B, Haupt K, Pan G. Evolution of Molecularly Imprinted Enzyme Inhibitors: From Simple Activity Inhibition to Pathological Cell Regulation. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202106657] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Jingjing Xu
- Center for Molecular Recognition and Biosensing School of Life Sciences Shanghai University Shanghai 200444 P. R. China
| | - Haohan Miao
- Institute for Advanced Materials School of Materials Science and Engineering Jiangsu University Zhenjiang Jiangsu 212013 China
| | - Lihua Zou
- Center for Molecular Recognition and Biosensing School of Life Sciences Shanghai University Shanghai 200444 P. R. China
| | - Bernadette Tse Sum Bui
- Université de Technologie de Compiègne CNRS Enzyme and Cell Engineering Laboratory Rue du Docteur Schweitzer 60203 Compiègne Cedex France
| | - Karsten Haupt
- Université de Technologie de Compiègne CNRS Enzyme and Cell Engineering Laboratory Rue du Docteur Schweitzer 60203 Compiègne Cedex France
| | - Guoqing Pan
- Institute for Advanced Materials School of Materials Science and Engineering Jiangsu University Zhenjiang Jiangsu 212013 China
| |
Collapse
|
28
|
Xu J, Miao H, Zou L, Tse Sum Bui B, Haupt K, Pan G. Evolution of Molecularly Imprinted Enzyme Inhibitors: From Simple Activity Inhibition to Pathological Cell Regulation. Angew Chem Int Ed Engl 2021; 60:24526-24533. [PMID: 34418248 DOI: 10.1002/anie.202106657] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 08/11/2021] [Indexed: 02/06/2023]
Abstract
Molecular imprinting represents one of the most promising strategies to design artificial enzyme inhibitors. However, the study of molecularly imprinted enzyme inhibitors (MIEIs) remains at a primary stage. Advanced applications of MIEIs for cell regulation have rarely been explored. Using a solid-phase oriented imprinting strategy so as to leave the active site of the enzymes accessible, we synthesized two MIEIs that exhibit high specificity and potent inhibitory effects (inhibition constant at low nM range) towards trypsin and angiogenin. The trypsin MIEI inhibits trypsin activity, tryptic digestion-induced extracellular matrix lysis and cell membrane destruction, indicating its utility in the treatment of active trypsin-dependent cell injury. The angiogenin MIEI blocks cancer cell proliferation by suppressing the ribonuclease activity of angiogenin and decreasing the angiogenin level inside and outside HeLa cells. Our work demonstrates the versatility of MIEIs for both enzyme inhibition and cell fate manipulation, showing their great potential as therapeutic drugs in biomedicine.
Collapse
Affiliation(s)
- Jingjing Xu
- Center for Molecular Recognition and Biosensing, School of Life Sciences, Shanghai University, Shanghai, 200444, P. R. China
| | - Haohan Miao
- Institute for Advanced Materials, School of Materials Science and Engineering, Jiangsu University, Zhenjiang, Jiangsu, 212013, China
| | - Lihua Zou
- Center for Molecular Recognition and Biosensing, School of Life Sciences, Shanghai University, Shanghai, 200444, P. R. China
| | - Bernadette Tse Sum Bui
- Université de Technologie de Compiègne, CNRS Enzyme and Cell Engineering Laboratory, Rue du Docteur Schweitzer, 60203, Compiègne Cedex, France
| | - Karsten Haupt
- Université de Technologie de Compiègne, CNRS Enzyme and Cell Engineering Laboratory, Rue du Docteur Schweitzer, 60203, Compiègne Cedex, France
| | - Guoqing Pan
- Institute for Advanced Materials, School of Materials Science and Engineering, Jiangsu University, Zhenjiang, Jiangsu, 212013, China
| |
Collapse
|
29
|
Nawaz N, Abu Bakar NK, Muhammad Ekramul Mahmud HN, Jamaludin NS. Molecularly imprinted polymers-based DNA biosensors. Anal Biochem 2021; 630:114328. [PMID: 34363786 DOI: 10.1016/j.ab.2021.114328] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 07/26/2021] [Accepted: 08/03/2021] [Indexed: 01/31/2023]
Abstract
In multiple biological processes, molecular recognition performs an integral role in detecting bio analytes. Molecular imprinted polymers (MIPs) are tailored sensing materials that can biomimic the biologic ligands and can detect specific target molecules selectively and sensitively. The formulation of molecularly imprinted polymers is followed by the formulation of a control termed as non-imprinted polymer (NIP), which, in the absence of a template, is commonly formulated to evaluate whether distinctive imprints have been produced for the template. Given the difficulties confronting bioanalytical researchers, it is inevitable that this strategy would come out as a central route of multidisciplinary studies to create extremely promising stable artificial receptors as a replacement or accelerate biological matrices. The ease of synthesis, low cost, capability to 'tailor' recognition element for analyte molecules, and stability under harsh environments make MIPs promising candidates as a recognition tool for biosensing. Compared to biological systems, molecular imprinting techniques have several advantages, including high recognition ability, long-term durability, low cost, and robustness, allowing molecularly imprinted polymers to be employed in drug delivery, biosensor technology, and nanotechnology. Molecular imprinted polymer-based sensors still have certain shortcomings in determining biomacromolecules (nucleic acid, protein, lipids, and carbohydrates), considering the vast volume of the latest literature on biomicromolecules. These potential materials are still required to address a few weaknesses until gaining their position in recognition of biomacromolecules. This review aims to highlight the current progress in molecularly imprinted polymers (MIPs)-based sensors for the determination of deoxyribonucleic acid (DNA) or nucleobases.
Collapse
Affiliation(s)
- Noman Nawaz
- Department of Chemistry, Faculty of Science, University of Malaya, 50603, Kuala Lumpur, W.Persekutuan Kuala Lumpur, Malaysia.
| | - Nor Kartini Abu Bakar
- Department of Chemistry, Faculty of Science, University of Malaya, 50603, Kuala Lumpur, W.Persekutuan Kuala Lumpur, Malaysia.
| | | | - Nazzatush Shimar Jamaludin
- Department of Chemistry, Faculty of Science, University of Malaya, 50603, Kuala Lumpur, W.Persekutuan Kuala Lumpur, Malaysia
| |
Collapse
|
30
|
Emadoddin M, Mozaffari SA, Ebrahimi F. An antifouling impedimetric sensor based on zinc oxide embedded polyvinyl alcohol nanoplatelets for wide range dopamine determination in the presence of high concentration ascorbic acid. J Pharm Biomed Anal 2021; 205:114278. [PMID: 34365189 DOI: 10.1016/j.jpba.2021.114278] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 06/11/2021] [Accepted: 07/21/2021] [Indexed: 01/17/2023]
Abstract
Dopamine determination is of great importance for the early diagnosis of neurological diseases. However, dopamine sensors mostly encounter important challenges such as surface fouling and interference of co-existing biochemicals. Here, nanoplatelets of zinc oxide embedded polyvinyl alcohol (NP-ZnO/PVA) were utilized for providing an efficient fouling-free surface for selective dopamine determination in concentrations as high as 3 mM of dopamine in the presence of ascorbic acid interference. The fouling-free properties was provided mainly by pH-inducibility of the NP-ZnO/PVA nanocomposite at the rationally adjusted sensing conditions. ZnO plays a vital role in the electrocatalytic oxidation of dopamine, and PVA provides surface functional groups that minimize the surface interactions with interferences or fouling agents. The NP-ZnO/PVA nanocomposite fabrication process was performed by PVA assisted ZnO electro-synthesis onto the surface of fluorine-doped tin oxide (FTO) conducting glass. The fabricated FTO/NP-ZnO/PVA sensor was characterized utilizing FE-SEM, EDX, XRD, TGA-DTG, BET-BJH and FTIR techniques. Impedimetric determination of dopamine was performed in the wide linear range from 20.0 nM to 3.0 mM with a low detection limit of 5.0 nM. The applicability of FTO/NP-ZnO/PVA for dopamine determination was successfully tested in real samples. The NP-ZnO/PVA provides a great prospective to be an efficacious material for the construction of dopamine electrochemical sensing platforms.
Collapse
Affiliation(s)
- Motahhare Emadoddin
- Thin Layer and Nanotechnology Laboratory, Department of Chemical Technologies, Iranian Research Organization for Science and Technology (IROST), P.O. Box 33535-111, Tehran, Iran
| | - Sayed Ahmad Mozaffari
- Thin Layer and Nanotechnology Laboratory, Department of Chemical Technologies, Iranian Research Organization for Science and Technology (IROST), P.O. Box 33535-111, Tehran, Iran.
| | - Fateme Ebrahimi
- Thin Layer and Nanotechnology Laboratory, Department of Chemical Technologies, Iranian Research Organization for Science and Technology (IROST), P.O. Box 33535-111, Tehran, Iran
| |
Collapse
|
31
|
Ye Q, Men C, Tian L, Liu Y, Zhan L, Li YF, Huang CZ, Zhen SJ. Preparation of a molecularly imprinted test strip for point-of-care detection of thiodiglycol, a sulfur mustard poisoning metabolic marker. Talanta 2021; 234:122701. [PMID: 34364498 DOI: 10.1016/j.talanta.2021.122701] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 06/28/2021] [Accepted: 07/07/2021] [Indexed: 10/20/2022]
Abstract
Conventional methods for the detection of the sulfur mustard poisoning metabolic marker, thiodiglycol (TDG), require expensive instruments and reagents as well as professional operators. To address these problems, a novel test strip based on a molecularly imprinted sensitive membrane (MIM) was developed in this work for point-of-care (POC) detection of TDG. The TDG test strip was prepared conveniently by coating molecular imprinted polymers (MIPs) on a nitrocellulose membrane. When the sample contained TDG, the MIPs could specifically bind with TDG. A great number of AuNPs (AuNPs) could then be adsorbed on the test strip via the formation of an Au-S bond between TDG and AuNPs, giving the test strip the obvious red color of AuNPs. In the absence of TDG, the test strip exhibited much lighter color because it could not adsorb AuNPs. By monitoring the color change of the test strip, TDG could be detected from 1.0 ng/mL to 100.0 μg/mL with a detection limit of 0.23 ng/mL (3σ) under the optimal conditions (the molar ratio of TDG to MAA was 1:2; the eluent was chloroform; the elution time was 50 min; the reaction time between MIPs and TDG was 15 min; the adsorption time of AuNPs was 40 min; the temperature of the reaction system was 35 °C). This method has excellent selectivity and has been used to detect TDG in urine, showing great potential for POC detection of TDG in clinical samples.
Collapse
Affiliation(s)
- Qichao Ye
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Chen Men
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Lili Tian
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Yuxin Liu
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Lei Zhan
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Chongqing Science and Technology Bureau, College of Pharmaceutical Science, Southwest University, Chongqing, 400715, PR China
| | - Yuan Fang Li
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Cheng Zhi Huang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Chongqing Science and Technology Bureau, College of Pharmaceutical Science, Southwest University, Chongqing, 400715, PR China
| | - Shu Jun Zhen
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China.
| |
Collapse
|
32
|
Zou L, Ding R, Li X, Miao H, Xu J, Pan G. Typical Fluorescent Sensors Exploiting Molecularly Imprinted Hydrogels for Environmentally and Medicinally Important Analytes Detection. Gels 2021; 7:67. [PMID: 34201367 PMCID: PMC8293044 DOI: 10.3390/gels7020067] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 06/03/2021] [Accepted: 06/04/2021] [Indexed: 12/19/2022] Open
Abstract
In this work, two typical fluorescent sensors were generated by exploiting molecularly imprinted polymeric hydrogels (MIPGs) for zearalenone (ZON) and glucuronic acid (GA) detection, via the analyte's self-fluorescence property and receptor's fluorescence effect, respectively. Though significant advances have been achieved on MIPG-fluorescent sensors endowed with superior stability over natural receptor-sensors, there is an increasing demand for developing sensing devices with cost-effective, easy-to-use, portable advantages in terms of commercialization. Zooming in on the commercial potential of MIPG-fluorescent sensors, the MIPG_ZON is synthesized using zearalanone (an analogue of ZON) as template, which exhibits good detection performance even in corn samples with a limit of detection of 1.6 μM. In parallel, fluorescein-incorporated MIPG_GA is obtained and directly used for cancer cell imaging, with significant specificity and selectivity. Last but not least, our consolidated application results unfold new opportunities for MIPG-fluorescent sensors for environmentally and medicinally important analytes detection.
Collapse
Affiliation(s)
- Lihua Zou
- Center for Molecular Recognition and Biosensing, School of Life Sciences, Shanghai University, Shanghai 200444, China;
| | - Rong Ding
- Sino-European School of Technology of Shanghai University, Shanghai University, Shanghai 200444, China; (R.D.); (X.L.)
| | - Xiaolei Li
- Sino-European School of Technology of Shanghai University, Shanghai University, Shanghai 200444, China; (R.D.); (X.L.)
| | - Haohan Miao
- Institute for Advanced Materials, School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China;
| | - Jingjing Xu
- Center for Molecular Recognition and Biosensing, School of Life Sciences, Shanghai University, Shanghai 200444, China;
- Sino-European School of Technology of Shanghai University, Shanghai University, Shanghai 200444, China; (R.D.); (X.L.)
| | - Guoqing Pan
- Institute for Advanced Materials, School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China;
| |
Collapse
|
33
|
Yin F, Xu F, Zhang K, Yuan M, Cao H, Ye T, Wu X, Xu F. Synthesis and evaluation of mesoporous silica/mesoporous molecularly imprinted nanoparticles as adsorbents for detection and selective removal of imidacloprid in food samples. Food Chem 2021; 364:130216. [PMID: 34237619 DOI: 10.1016/j.foodchem.2021.130216] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Revised: 04/07/2021] [Accepted: 05/17/2021] [Indexed: 11/18/2022]
Abstract
The double-mesoporous-layer imprinted polymer of mesoporous silica/mesoporous molecularly imprinted nanoparticles (MIP), with high specific surface area, rich porosity, excellent mass transfer rate and selectivity, were synthesized using imidacloprid (IDP) as a template. Under the optimal conditions of pH, contact time, concentration and temperature, MIP showed high adsorption capacity of 13.86 μg·mg-1 toward IDP and the imprinting factor reached 3.5. The adsorption process model including binding isotherm and kinetics was investigated. MIP exhibited excellent regeneration and its adsorption and selectivity were outstanding among its structurally pesticide analogues. The recovery of spiked IDP for MIP in fortified real samples can reach 96.0 ± 8.5% for cabbage and 105.0 ± 9.9% for apple. The limit of detection of the enrichment method can be as low as 0.037 μg·mL-1 with a good linear relationship (R2 = 0.996) from 0.30 to 10.0 μg·mL-1. The results indicated that the proposed method allowed class-specific detection of IDP in food samples.
Collapse
Affiliation(s)
- Fengqin Yin
- School of Medical Instrument and Food Engineering, Shanghai Engineering Research Center for Food Rapid Detection, University of Shanghai for Science and Technology, Shanghai, China
| | - Feng Xu
- College of Science, University of Shanghai for Science and Technology, Shanghai, China
| | - Kun Zhang
- College of Science, University of Shanghai for Science and Technology, Shanghai, China
| | - Min Yuan
- School of Medical Instrument and Food Engineering, Shanghai Engineering Research Center for Food Rapid Detection, University of Shanghai for Science and Technology, Shanghai, China
| | - Hui Cao
- School of Medical Instrument and Food Engineering, Shanghai Engineering Research Center for Food Rapid Detection, University of Shanghai for Science and Technology, Shanghai, China
| | - Tai Ye
- School of Medical Instrument and Food Engineering, Shanghai Engineering Research Center for Food Rapid Detection, University of Shanghai for Science and Technology, Shanghai, China
| | - Xiuxiu Wu
- School of Medical Instrument and Food Engineering, Shanghai Engineering Research Center for Food Rapid Detection, University of Shanghai for Science and Technology, Shanghai, China
| | - Fei Xu
- School of Medical Instrument and Food Engineering, Shanghai Engineering Research Center for Food Rapid Detection, University of Shanghai for Science and Technology, Shanghai, China; College of Science, University of Shanghai for Science and Technology, Shanghai, China.
| |
Collapse
|
34
|
Mahmoud AM, Mahnashi MH, Alhazzani K, Az A, Algahtani MM, Alaseem A, Alyami BA, AlQarni AO, El-Wekil MM. Nitrogen doped graphene quantum dots based on host guest interaction for selective dual readout of dopamine. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 252:119516. [PMID: 33561682 DOI: 10.1016/j.saa.2021.119516] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 01/10/2021] [Accepted: 01/19/2021] [Indexed: 06/12/2023]
Abstract
Herein, yellow emissive nitrogen doped graphene quantum dots (N@GQDs) were prepared by a novel advanced thermal driven oxidation. The N@GQDs was functionalized with β-cyclodextrin (β-CD) to improve its catalytic performance towards dopamine (DA) detection. The β-CD/N@GQDs exhibited strong fluorescence at λem. = 550 nm after excitation at 460 nm with a quantum yield of 38.6%. The β-CD/N@GQDs showed good peroxidase like activity via catalyzing the oxidation of tetramethylbenzidine (TMB) in presence of H2O2 to form blue colored product at λmax = 652 nm. In the colorimetric assay of DA, the detection based on the oxidation of TMB by H2O2 in presence of β-CD/N@GQDs as a catalyst. Then, the color of the blue oxidized TMB (oxTMB) product was reduced by addition of DA. While the fluorometric detection of DA based on the "inner filter effect" of the overlapped emission spectrum of β-CD/N@GQDs with the absorption spectrum of oxTMB, where, addition of DA reduces oxTMB to TMB and restores the fluorescence intensity of β-CD/N@GQDs. Under the optimized conditions, the colorimetric method achieved linearity range of 0.12-7.5 µM and LOD (S/N = 3) of 0.04 µM, while the fluorometric method achieved linearity range of 0.028-1.5 µM and LOD (S/N = 3) of 0.009 µM. The peroxidase like activity of β-CD/N@GQDs was used to detect DA in human plasma and serum samples with good % recoveries. The colorimetric and fluorometric methods exhibited good sensitivity and selectivity toward DA detection.
Collapse
Affiliation(s)
- Ashraf M Mahmoud
- Department of Pharmaceutical Chemistry, College of Pharmacy, Najran University, Najran, Saudi Arabia; Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Assiut University, Assiut, Egypt
| | - Mater H Mahnashi
- Department of Pharmaceutical Chemistry, College of Pharmacy, Najran University, Najran, Saudi Arabia
| | - Khalid Alhazzani
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Alanazi Az
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Mohammad M Algahtani
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Ali Alaseem
- Pharmacology Department, College of Medicine, Al Imam Mohammad Ibn Saud Islamic University, Riyadh, Saudi Arabia
| | - Bandar A Alyami
- Department of Pharmaceutical Chemistry, College of Pharmacy, Najran University, Najran, Saudi Arabia
| | - Ali O AlQarni
- Department of Pharmaceutical Chemistry, College of Pharmacy, Najran University, Najran, Saudi Arabia
| | - Mohamed M El-Wekil
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Assiut University, Assiut, Egypt.
| |
Collapse
|
35
|
Díaz-Álvarez M, Martín-Esteban A. Molecularly Imprinted Polymer-Quantum Dot Materials in Optical Sensors: An Overview of Their Synthesis and Applications. BIOSENSORS 2021; 11:bios11030079. [PMID: 33805669 PMCID: PMC7999655 DOI: 10.3390/bios11030079] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 03/10/2021] [Accepted: 03/11/2021] [Indexed: 05/03/2023]
Abstract
In the last decades analytical methods have focused on the determination of target analytes at very low concentration levels. This has been accomplished through the use of traditional analytical methods that usually require high reagent consumption, expensive equipment and long pretreatment steps. Thus, there is a demand for simple, rapid, highly selective and user-friendly detection procedures. Quantum dots (QDs) are semiconductor fluorescent nanomaterials with unique optoelectronic properties that have shown great potential for the development of fluorescence probes. Besides, the combination of QDs with molecularly imprinted polymer (MIPs), synthetic materials with selective recognition, have been proposed as useful materials in the development of optical sensors. The resulting MIP-QDs optical sensors integrate the advantages of both techniques: the high sensitivity of QDs-based fluorescence sensors and the high selectivity of MIPs. This review gives a brief overview of the strategies for the synthesis of MIPs-QDs based optical sensors, highlighting the modifications in the synthesis procedure that improve the sensor performance. Finally, a revision of recent applications in sensing and bioimaging is presented.
Collapse
|
36
|
Kokulnathan T, Ahmed F, Chen SM, Chen TW, Hasan PMZ, Bilgrami AL, Darwesh R. Rational Confinement of Yttrium Vanadate within Three-Dimensional Graphene Aerogel: Electrochemical Analysis of Monoamine Neurotransmitter (Dopamine). ACS APPLIED MATERIALS & INTERFACES 2021; 13:10987-10995. [PMID: 33624494 DOI: 10.1021/acsami.0c22781] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Real-time monitoring of neurotransmitter levels is of tremendous technological demand, which requires more sensitive and selective sensors over a dynamic concentration range. As a use case, we report yttrium vanadate within three-dimensional graphene aerogel (YVO/GA) as a novel electrocatalyst for detecting dopamine (DA). This synergy effect endows YVO/GA nanocomposite with good electrochemical behaviors for DA detection compared to other electrodes. Benefiting from tailorable properties, it provides a large specific surface area, rapid electron transfer, more active sites, good catalytic activity, synergic effect, and high conductivity. The essential analytical parameters were estimated from the calibration plot, such as a limit of detection (1.5 nM) and sensitivity (7.1 μA μM-1 cm-2) with the YVO/GA sensor probe electrochemical approach. The calibration curve was fitted with the correlation coefficient of 0.994 in the DA concentration range from 0.009 to 83 μM, which is denoted as the linear working range. We further demonstrate the proposed YVO/GA sensor's applicability to detect DA in human serum sample with an acceptable recovery range. Our results imply that the developed sensor could be applied to the early analysis of dementia, psychiatric, and neurodegenerative disorders.
Collapse
Affiliation(s)
- Thangavelu Kokulnathan
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 106, Taiwan
- Department of Electro-Optical Engineering, National Taipei University of Technology, Taipei 106, Taiwan
| | - Faheem Ahmed
- Department of Physics, College of Science, King Faisal University, P.O Box 400, Hofuf, Al-Ahsa 31982, Kingdom of Saudi Arabia
| | - Shen-Ming Chen
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 106, Taiwan
| | - Tse-Wei Chen
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 106, Taiwan
- Research and Development Center for Smart Textile Technology, National Taipei University of Technology, Taipei 106, Taiwan
- Department of Materials, Imperial College London, London, SW7 2AZ, United Kingdom
| | - P M Z Hasan
- Center of Nanotechnology, King Abdulaziz University, Jeddah 21589, Kingdom of Saudi Arabia
| | - Anwar L Bilgrami
- Deanship of Scientific Research, King Abdulaziz University, Jeddah 21589, Kingdom of Saudi Arabia
| | - Reem Darwesh
- Department of Physics, King Abdulaziz University, P.O. Box 80200, Jeddah 21589, Kingdom of Saudi Arabia
| |
Collapse
|
37
|
Alqarni AO, Alkahtani SA, Mahmoud AM, El-Wekil MM. Design of "Turn On" fluorometric nanoprobe based on nitrogen doped graphene quantum dots modified with β-cyclodextrin and vitamin B 6 cofactor for selective sensing of dopamine in human serum. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 248:119180. [PMID: 33234475 DOI: 10.1016/j.saa.2020.119180] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 11/01/2020] [Accepted: 11/01/2020] [Indexed: 06/11/2023]
Abstract
Herein, a novel and rapid fluorometric nanoprobe was constructed for quantitation of dopamine (DA) in presence of biologically interfering compounds. The nanoprobe based on synthesis of yellow emissive nitrogen doped graphene quantum dots (N@GQDs) by advanced thermal driven oxidation. After that, the synthesized N@GQDs was capped with β-cyclodextrin (β-CD), followed by interaction with pyridoxal (PYL) vitamin B6 cofactor. This interaction resulted in diminishing the yellow fluorescence of β-CD/N@GQDs, and appearance of blue emission peak at 420 nm. Upon addition of DA, the blue emission of β-CD/N@GQDs was increased after excitation at λ = 330 nm. Under optimum conditions, the nanoprobe exhibited a linear range of 0.36-400 nM with limit of detection (LOD) of 0.117 nM. In addition, the fluorescent nanoprobe shows high selectivity and can be used for detection of DA in complicated biological matrices and human serum. This strategy might provide a potential tool for clinical diagnosis and biomedical research for DA related diseases.
Collapse
Affiliation(s)
- Ali O Alqarni
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Najran University, Najran, Saudi Arabia
| | - Saad A Alkahtani
- Department of Clinical Pharmacy, College of Pharmacy, Najran University, Najran, Saudia Arabia
| | - Ashraf M Mahmoud
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Najran University, Najran, Saudi Arabia; Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Assiut University, Assiut, Egypt
| | - Mohamed M El-Wekil
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Assiut University, Assiut, Egypt.
| |
Collapse
|
38
|
Hu B, Chen L, Yu Z, Xu Y, Dai J, Yan Y, Ma Z. Hollow molecularly imprinted fluorescent sensor using europium complex as functional monomer for the detection of trace 2,4,6-trichlorophenol in real water samples. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 246:119051. [PMID: 33080514 DOI: 10.1016/j.saa.2020.119051] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2020] [Revised: 10/02/2020] [Accepted: 10/04/2020] [Indexed: 06/11/2023]
Abstract
As an important environmental indicator, 2,4,6-trichlorophenol (2,4,6-TCP) was proved extremely harmful to human body. In this article, hollow molecularly imprinted fluorescent polymers (@MIPs) for the selective detection of 2,4,6-TCP were devised and fabricated by sacrificial skeleton method based on SiO2 nanoparticles. As the most innovation, highly luminescent europium complex Eu(MAA)3phen played the role of both fluorophores and functional monomers of the MIPs. The obtained @MIPs showed monodispersity and the average particle size was around 130 nm. It had a linear fluorescent response within the concentration range 10-100 nmol L-1 with the correlation coefficient calculated as 0.99625, and the limit of detection was identified as 2.41 nmol L-1. The results show that Eu(MAA)3phen as a fluorophore has high luminescent properties, and as a functional monomer, it can improve the selectivity and anti-interference performance of MIPs. Furthermore, the hollow structure made it possible that the imprinted specific recognition sites distributed on both inner and outer surfaces of @MIPs. The experimental results showed that these @MIPs could be employed to the selective detection of chlorophenols under low concentration. And this work will provide a reference for further optimization of fluorescent imprinted sensors.
Collapse
Affiliation(s)
- Bo Hu
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China; Institute of Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Li Chen
- Institute of Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Zhixin Yu
- Institute of Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China; Zhen Jiang Chang Jiang Electromechanical Equipment Co. Ltd., Zhenjiang 212013, China
| | - Yeqing Xu
- Institute of Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China; Zhen Jiang Chang Jiang Electromechanical Equipment Co. Ltd., Zhenjiang 212013, China
| | - Jiangdong Dai
- Institute of Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Yongsheng Yan
- Institute of Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China.
| | - Zhongfei Ma
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China.
| |
Collapse
|
39
|
Cáceres C, Moczko E, Basozabal I, Guerreiro A, Piletsky S. Molecularly Imprinted Nanoparticles (NanoMIPs) Selective for Proteins: Optimization of a Protocol for Solid-Phase Synthesis Using Automatic Chemical Reactor. Polymers (Basel) 2021; 13:polym13030314. [PMID: 33498149 PMCID: PMC7863738 DOI: 10.3390/polym13030314] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 12/20/2020] [Accepted: 12/20/2020] [Indexed: 01/14/2023] Open
Abstract
Molecularly imprinted polymer nanoparticles (nanoMIPs) are receiving broad interest as robust and highly selective synthetic receptors for a variety of molecules. Due to their stability, inexpensive synthesis and easy implementation, they are considered a promising alternative to antibodies in sensors, diagnostics and separation applications. The most challenging targets for the production of synthetic receptors are proteins due to their fragile nature and the multitude of possible binding sites in their structure. Herein, we describe the modification and optimization of the protocol for synthesis of nanoMIPs with specificity for proteins using the prototype of an automated solid-phase synthesizer. Using an automated system gives an advantage for the simple, fast and fully controlled, reproducible production of nanoMIPs. The molecular imprinting in the reactor is performed using a template covalently immobilized on a solid support, in mild conditions suitable for preserving protein native structure. The validation of the protocol was made by assessing the ability to regenerate a solid-phase, and by measuring affinity and specificity of nanoparticles. As a model protein, we have chosen trypsin since its enzymatic activity can be easily monitored by using a commercial colorimetric assay. Different protocols were tested for their ability to improve the yield of high affinity nanoparticles in the final elution.
Collapse
Affiliation(s)
- César Cáceres
- Departamento de Polímeros, Facultad de Ciencias Químicas, Universidad de Concepción, 4070371 Concepción, Chile;
| | - Ewa Moczko
- Facultad de Ingeniería y Ciencias, Universidad Adolfo Ibáñez, 2562307 Viña del Mar, Chile
- Department of Chemistry, University of Leicester, Leicester LE1 7RH, UK; (I.B.); (A.G.); (S.P.)
- Correspondence:
| | - Itsaso Basozabal
- Department of Chemistry, University of Leicester, Leicester LE1 7RH, UK; (I.B.); (A.G.); (S.P.)
| | - Antonio Guerreiro
- Department of Chemistry, University of Leicester, Leicester LE1 7RH, UK; (I.B.); (A.G.); (S.P.)
- MIP Diagnostics, Leicester MK44 1LQ, UK
| | - Sergey Piletsky
- Department of Chemistry, University of Leicester, Leicester LE1 7RH, UK; (I.B.); (A.G.); (S.P.)
| |
Collapse
|
40
|
Li W, Zhang X, Li T, Ji Y, Li R. Molecularly imprinted polymer-enhanced biomimetic paper-based analytical devices: A review. Anal Chim Acta 2021; 1148:238196. [PMID: 33516379 DOI: 10.1016/j.aca.2020.12.071] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Revised: 12/29/2020] [Accepted: 12/30/2020] [Indexed: 02/07/2023]
Abstract
The popularization of paper-based analytical devices (PADs) in analytical science has fostered research on enhancing their analytical performance for accurate and sensitive assays. With their superb recognition capability and structural stability, molecularly imprinted polymers (MIPs) have been extensively employed as biomimetic receptors for capturing target analytes in various complex matrices. The integration of MIPs as recognition elements with PADs (MIP-PADs) has opened new opportunities for advanced analytical devices with elevated selectivity and sensitivity, as well as a shorter assay time and a lower cost. This review covers recent advances in MIP-PAD fabrication and engineering based on multifarious signal transduction systems such as colorimetry, fluorescence, electrochemistry, photoelectrochemistry, and chemiluminescence. The application of MIP-PADs in the fields of biomedical diagnostics, environmental analysis, and food safety monitoring is also reviewed. Further, the advantages, challenges, and perspectives of MIP-PADs are discussed.
Collapse
Affiliation(s)
- Wang Li
- Department of Analytical Chemistry, China Pharmaceutical University, Nanjing, 210009, China; Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education, Nanjing, 210009, China
| | - Xiaoyue Zhang
- Department of Analytical Chemistry, China Pharmaceutical University, Nanjing, 210009, China; Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education, Nanjing, 210009, China
| | - Tingting Li
- Department of Analytical Chemistry, China Pharmaceutical University, Nanjing, 210009, China; Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education, Nanjing, 210009, China
| | - Yibing Ji
- Department of Analytical Chemistry, China Pharmaceutical University, Nanjing, 210009, China; Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education, Nanjing, 210009, China.
| | - Ruijun Li
- Department of Analytical Chemistry, China Pharmaceutical University, Nanjing, 210009, China; Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education, Nanjing, 210009, China.
| |
Collapse
|
41
|
Kazemifard N, Ensafi AA, Dehkordi ZS. A review of the incorporation of QDs and imprinting technology in optical sensors – imprinting methods and sensing responses. NEW J CHEM 2021. [DOI: 10.1039/d1nj01104a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
This review aims to cover the simultaneous method of using molecularly imprinted technology and quantum dots (QDs) as well as its application in the field of optical sensors.
Collapse
Affiliation(s)
- Nafiseh Kazemifard
- Department of Chemistry
- Isfahan University of Technology
- Isfahan 84156-83111
- Iran
| | - Ali A. Ensafi
- Department of Chemistry
- Isfahan University of Technology
- Isfahan 84156-83111
- Iran
| | | |
Collapse
|
42
|
Dar KK, Shao S, Tan T, Lv Y. Molecularly imprinted polymers for the selective recognition of microorganisms. Biotechnol Adv 2020; 45:107640. [DOI: 10.1016/j.biotechadv.2020.107640] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Revised: 09/18/2020] [Accepted: 10/01/2020] [Indexed: 12/20/2022]
|
43
|
Arabi M, Ostovan A, Zhang Z, Wang Y, Mei R, Fu L, Wang X, Ma J, Chen L. Label-free SERS detection of Raman-Inactive protein biomarkers by Raman reporter indicator: Toward ultrasensitivity and universality. Biosens Bioelectron 2020; 174:112825. [PMID: 33243696 DOI: 10.1016/j.bios.2020.112825] [Citation(s) in RCA: 140] [Impact Index Per Article: 35.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Revised: 11/06/2020] [Accepted: 11/13/2020] [Indexed: 02/07/2023]
Abstract
It is still challenging to sensitively detect protein biomarkers via surface-enhanced Raman scattering (SERS) technique owing to their low Raman activity. SERS tag-based immunoassay is usually applied; however, it is laborious and needs specific antibodies. Herein, an ultrasensitive and universal "Raman indicator" sensing strategy is proposed for protein biomarkers, with the aid of a glass capillary-based molecularly imprinted SERS sensor. The sensor consists of an inner SERS substrate layer for signal enhancement and an outer mussel-inspired polydopamine imprinted layer as a recognition element. Imprinted cavities have two missions: first, selectively capturing the target protein, and second, the only passageway of Raman indicator to access SERS substrate. Specific protein recognition means filling imprinted cavities and blocking Raman indicator flow. Thus, the quantity of captured protein can be reflected by the signal decrease of ultra-Raman active indicator molecule. The capillary sensor exhibited specific and reproducible detection at the level down to 4.1 × 10-3 μg L-1, for trypsin enzyme in as-received biological samples without sample preparation. The generality of the mechanism is confirmed by using three different protein models. This platform provides a facile, fast and general route for sensitive SERS detection of Raman inactive biomacromolecules, which offers great promising utility for in situ and fast point-of-care practical bioassay.
Collapse
Affiliation(s)
- Maryam Arabi
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Shandong Key Laboratory of Coastal Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, China
| | - Abbas Ostovan
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Shandong Key Laboratory of Coastal Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, China
| | - Zhiyang Zhang
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Shandong Key Laboratory of Coastal Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, 266071, China
| | - Yunqing Wang
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Shandong Key Laboratory of Coastal Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, 266071, China.
| | - Rongchao Mei
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Shandong Key Laboratory of Coastal Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, China
| | - Longwen Fu
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Shandong Key Laboratory of Coastal Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, 266071, China
| | - Xiaoyan Wang
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Shandong Key Laboratory of Coastal Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, China; School of Pharmacy, Binzhou Medical University, Yantai, 264003, China
| | - Jiping Ma
- School of Environmental & Municipal Engineering, Qingdao University of Technology, Qingdao, 266033, China
| | - Lingxin Chen
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Shandong Key Laboratory of Coastal Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, 266071, China
| |
Collapse
|
44
|
Lowdon JW, Eersels K, Arreguin-Campos R, Caldara M, Heidt B, Rogosic R, Jimenez-Monroy KL, Cleij TJ, Diliën H, van Grinsven B. A Molecularly Imprinted Polymer-based Dye Displacement Assay for the Rapid Visual Detection of Amphetamine in Urine. Molecules 2020; 25:molecules25225222. [PMID: 33182534 PMCID: PMC7696774 DOI: 10.3390/molecules25225222] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 11/02/2020] [Accepted: 11/06/2020] [Indexed: 11/16/2022] Open
Abstract
The rapid sensing of drug compounds has traditionally relied on antibodies, enzymes and electrochemical reactions. These technologies can frequently produce false positives/negatives and require specific conditions to operate. Akin to antibodies, molecularly imprinted polymers (MIPs) are a more robust synthetic alternative with the ability to bind a target molecule with an affinity comparable to that of its natural counterparts. With this in mind, the research presented in this article introduces a facile MIP-based dye displacement assay for the detection of (±) amphetamine in urine. The selective nature of MIPs coupled with a displaceable dye enables the resulting low-cost assay to rapidly produce a clear visual confirmation of a target's presence, offering huge commercial potential. The following manuscript characterizes the proposed assay, drawing attention to various facets of the sensor design and optimization. To this end, synthesis of a MIP tailored towards amphetamine is described, scrutinizing the composition and selectivity (ibuprofen, naproxen, 2-methoxphenidine, quetiapine) of the reported synthetic receptor. Dye selection for the development of the displacement assay follows, proceeded by optimization of the displacement process by investigating the time taken and the amount of MIP powder required for optimum displacement. An optimized dose-response curve is then presented, introducing (±) amphetamine hydrochloride (0.01-1 mg mL-1) to the engineered sensor and determining the limit of detection (LoD). The research culminates in the assay being used for the analysis of spiked urine samples (amphetamine, ibuprofen, naproxen, 2-methoxphenidine, quetiapine, bupropion, pheniramine, bromopheniramine) and evaluating its potential as a low-cost, rapid and selective method of analysis.
Collapse
|
45
|
Ye J, Cai X, Zhou Q, Yan Z, Li K. Molecularly imprinted ratiometric fluorescent probe for visual and fluorescent determination of aristolochic acid I based on a Schiff-base fluorescent compound. Mikrochim Acta 2020; 187:623. [PMID: 33090285 DOI: 10.1007/s00604-020-04598-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Accepted: 10/07/2020] [Indexed: 10/23/2022]
Abstract
A molecularly imprinted ratiometric fluorescent probe (MIRF probe) was synthesized for the determination of aristolochic acid I (AAI) based on the Schiff-base fluorescent compound N,N'-bis(o-carboxybenzylidene)-p-4,4'-diaminobiphenyl (BDDB). The BDDB was immobilized in the silica nanoparticle (BDDB@SiO2) as an internal standard material. The blue-emitting BDDB@SiO2 and the yellow-emitting carbon quantum dots (y-CDs) were wrapped in the molecularly imprinted polymer (MIP) to provide a reliable reference signal at 440 nm and a fluorescent response signal at 530 nm at the excitation wavelength of 365 nm, respectively. In the preparation of the MIP of the MIRF probe, 4-vinylbenzoic acid as the functional monomer and AAI as the template molecule were used. An imprinting factor of 2.25 was obtained. Under the optimum conditions, the fluorescent response signal at 530 nm was quenched gradually by AAI in the range 1.0 to 120.0 μmol/L, while the reference signal at 440 nm remained unchanged. The limit of detection was 0.45 μmol/L, and the fluorescent color of the MIRF probe changed gradually from yellow to green to blue, which illustrated that the developed probe had a specific AAI recognition ability, a good anti-interference ability, and a sensitively visual determination ability. The probe was successfully applied to the AAI determination in traditional Chinese medicine (TCM) Asarum. The results showed that it had satisfactory recoveries (95.5-107.3%) and low relative standard deviations (2.0%). Furthermore, this method has a potential for the onsite naked eye determination of AAI in TCM samples.Graphical abstract.
Collapse
Affiliation(s)
- Jianping Ye
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Xin Cai
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Qing Zhou
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Zhihong Yan
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Kang Li
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, China.
| |
Collapse
|
46
|
Armutcu C, Tartan Ç, Özgür E, Nemutlu E, Uzun L. Phosphate Anion Imprinted Cryogel Cartridges for Selective Preconcentration of Phosphorylated Amino Acids from Protein Lysate: An Alternative Sorbent for Proteome Analyses. ChemistrySelect 2020. [DOI: 10.1002/slct.202001959] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Canan Armutcu
- Hacettepe University Faculty of Science Department of Chemistry Ankara Turkey
| | - Çağrı Tartan
- Hacettepe University Faculty of Science Department of Chemistry Ankara Turkey
| | - Erdoğan Özgür
- Hacettepe University Faculty of Science Department of Chemistry Ankara Turkey
- Hacettepe University Advanced Technologies Application and Research Center Ankara Turkey
| | - Emirhan Nemutlu
- Hacettepe University Faculty of Pharmacy Analytical Chemistry Division Ankara Turkey
| | - Lokman Uzun
- Hacettepe University Faculty of Science Department of Chemistry Ankara Turkey
| |
Collapse
|
47
|
Chen Y, Fan F, Fang G, Deng Q, Wang S. Fluorometric determination of tyramine by molecularly imprinted upconversion fluorescence test strip. Mikrochim Acta 2020; 187:573. [PMID: 32948924 DOI: 10.1007/s00604-020-04554-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 09/07/2020] [Indexed: 10/23/2022]
Abstract
A fluorometric method based on molecularly imprinted upconversion fluorescence test strip was developed for the determination of tyramine. It exploited the green fluorescence of upconversion nanoparticles (UCNPs) and the specific recognition property of molecularly imprinted polymers (MIPs). UCNPs were attached to filter paper with glue, and MIPs were prepared via in situ polymerization on the surface of UCNPs by using tyramine as template, methacrylic acid as functional monomer, and ethylene glycol dimethacrylate as cross-linker. The green fluorescence of the test strip, with excitation/emission wavelength 980/550 nm, was enhanced by tyramine. The test strip was suitable for the determination of tyramine in the linear range 1.0-100.0 mg L-1, and a relatively low limit of detection (0.2 mg L-1) was achieved. The test strip also worked well for the quantitation of tyramine in spiked red wine and mature vinegar. Recoveries are ranged from 84.9 to 99.9%. The relative standard deviations are below 5.6%. Graphical abstract.
Collapse
Affiliation(s)
- Yali Chen
- College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, Tianjin, 300457, China
| | - Fenfen Fan
- College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, Tianjin, 300457, China
| | - Guozhen Fang
- College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, Tianjin, 300457, China
| | - Qiliang Deng
- College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, Tianjin, 300457, China.
| | - Shuo Wang
- College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, Tianjin, 300457, China. .,Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin, 300071, China.
| |
Collapse
|
48
|
Sha H, Yan B. Design of a ratiometric fluorescence sensor based on metal organic frameworks and Ru(bpy) 32+-doped silica composites for 17β-Estradiol detection. J Colloid Interface Sci 2020; 583:50-57. [PMID: 32971505 DOI: 10.1016/j.jcis.2020.09.030] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 09/09/2020] [Accepted: 09/10/2020] [Indexed: 12/24/2022]
Abstract
17β-Estradiol (E2), an important endocrine disrupting compound, could be quantitatively detected by fluorescence resonance energy transfer (FRET) aptasensor, designed in this paper. Metal organic frameworks have large specific surface area and easily modifiable groups, which are helpful for the construction of aptasensor. Specifically, streptavidin was immobilized on the synthesized MIL-53-NH2 by covalent bonding, and further linked with the biotin modified E2 aptamer (apt) through specific bonding between avidin and biotin to obtain the FRET donor probe (MIL-53-apt). Meanwhile, complementary DNA (cDNA) modified Ru(bpy)32+-doped silica nanoparticles (RuSiO2-cDNA) were prepared through covalent bonding. They acted as the FRET acceptor probe, since its absorption spectrum showed large overlap with the emission spectrum of MIL-53-apt. In the presence of E2, aptamer modified donor probes tended to bind with E2, owing to their higher selectivity and affinity. Therefore, the optimal distance between FRET pairs was broken, resulting in the fluorescence emission recovery of donor and the fluorescence emission of acceptor decreased. Under optimal conditions, this proposed aptasensor displayed sensitive detection of E2 ranging from 0.5 to 1000 nM with a detection limit of 0.2 nM. Furthermore, the sensor provides a promising method for rapid and sensitive detection of other small biological molecules.
Collapse
Affiliation(s)
- Haifeng Sha
- School of Chemical Science and Engineering, Tongji University, Siping Road 1239, Shanghai 200092, China
| | - Bing Yan
- School of Chemical Science and Engineering, Tongji University, Siping Road 1239, Shanghai 200092, China; School of Materials Science and Engineering, Liaocheng University, Liaocheng 252059, China.
| |
Collapse
|
49
|
Díaz-Álvarez M, Martín-Esteban A. Fluorescent carbonaceous materials isolated from cigarette ashes for the determination of iron(iii) in water samples. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2020; 12:3523-3529. [PMID: 32672267 DOI: 10.1039/d0ay01091j] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In the present work, ready-to-use fluorescent carbonaceous materials (CMs) were isolated from cigarette ashes by following a simple procedure based on the dispersion of ashes in water and subsequent filtration. The isolated raw material was characterized by fluorescence microscopy, Fourier transform infrared (FT-IR) spectroscopy, and dynamic light scattering (DLS) analysis. The isolated CMs displayed excitation-dependent fluorescence emission, which enables them to be used as a fluorescent probe. The developed fluorescent probe possesses high potential for sensitive and selective detection of Fe(iii) via a quenching mechanism. The decrease in fluorescence intensity was in linear relationship with the concentrations of Fe(iii) within the range of 0-89.6 μM. The fluorescent probe was successfully applied to the determination of Fe(iii) in tap and well waters with an average recovery of 87% with an excellent relative standard deviation (RSD) of 0.63%, regardless of the water sample analyzed. Besides, fluorescence variation in the presence of Fe(iii) was evaluated by analyzing red, green, and blue (RGB) channels of the fluorescence colors. Finally, the possibility of semi-quantitative determination of Fe(iii) in water by the naked eye using the proposed fluorescent probe was also evaluated.
Collapse
Affiliation(s)
- Myriam Díaz-Álvarez
- Departamento de Medio Ambiente y Agronomía, INIA, Carretera de A Coruña km 7.5, E-28040 Madrid, Spain.
| | - Antonio Martín-Esteban
- Departamento de Medio Ambiente y Agronomía, INIA, Carretera de A Coruña km 7.5, E-28040 Madrid, Spain.
| |
Collapse
|
50
|
Arabi M, Ostovan A, Bagheri AR, Guo X, Wang L, Li J, Wang X, Li B, Chen L. Strategies of molecular imprinting-based solid-phase extraction prior to chromatographic analysis. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2020.115923] [Citation(s) in RCA: 197] [Impact Index Per Article: 49.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|