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Yang M, Zhang M, Jia M. Optical sensor arrays for the detection and discrimination of natural products. Nat Prod Rep 2023; 40:628-645. [PMID: 36597853 DOI: 10.1039/d2np00065b] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Covering: up to the end of 2022Natural products (NPs) have found uses in medicine, food, cosmetics, materials science, environmental protection, and other fields related to our life. Their beneficial properties along with potential toxicities make the detection and discrimination of NPs crucial for their applications. Owing to the merits of low cost and simple operation, optical sensor arrays, including colorimetric and fluorometric sensor arrays, have been widely applied in the detection of small molecule NPs and discrimination of structurally similar small molecule NPs or complex mixtures of NPs. This review provides a brief introduction to the optical sensor array and focuses on its progress toward the detection and discrimination of NPs. We summarized the design principle of sensor arrays toward various NPs (i.e., saccharides and polyhydroxy compounds, organic acids, flavonoids, organic sulfur compounds, amines, amino acids, and saponins) based on their functional groups and characteristic chemical properties, along with representative examples. Moreover, the challenges and potential directions for further research of optical sensor arrays for NPs are proposed.
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Affiliation(s)
- Maohua Yang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China.
| | - Mei Zhang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China.
| | - Mingyan Jia
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China.
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2
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Fan Q, Gao Y, Mazur F, Chandrawati R. Nanoparticle-based colorimetric sensors to detect neurodegenerative disease biomarkers. Biomater Sci 2021; 9:6983-7007. [PMID: 34528639 DOI: 10.1039/d1bm01226f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Neurodegenerative disorders (NDDs) are progressive, incurable health conditions that primarily affect brain cells, and result in loss of brain mass and impaired function. Current sensing technologies for NDD detection are limited by high cost, long sample preparation, and/or require skilled personnel. To overcome these limitations, optical sensors, specifically colorimetric sensors, have garnered increasing attention towards the development of a cost-effective, simple, and rapid alternative approach. In this review, we evaluate colorimetric sensing strategies of NDD biomarkers (e.g. proteins, neurotransmitters, bio-thiols, and sulfide), address the limitations and challenges of optical sensor technologies, and provide our outlook on the future of this field.
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Affiliation(s)
- Qingqing Fan
- School of Chemical Engineering and Australian Centre for Nanomedicine (ACN), The University of New South Wales (UNSW Sydney), Sydney, NSW 2052, Australia.
| | - Yuan Gao
- School of Chemical Engineering and Australian Centre for Nanomedicine (ACN), The University of New South Wales (UNSW Sydney), Sydney, NSW 2052, Australia.
| | - Federico Mazur
- School of Chemical Engineering and Australian Centre for Nanomedicine (ACN), The University of New South Wales (UNSW Sydney), Sydney, NSW 2052, Australia.
| | - Rona Chandrawati
- School of Chemical Engineering and Australian Centre for Nanomedicine (ACN), The University of New South Wales (UNSW Sydney), Sydney, NSW 2052, Australia.
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3
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Rather IA, Ali R. Indicator displacement assays: from concept to recent developments. Org Biomol Chem 2021; 19:5926-5981. [PMID: 34143168 DOI: 10.1039/d1ob00518a] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Overcoming the synthetic burden related to covalently connected receptors with appropriate indicators for sensing various analytes via an indicator spacer receptor (ISR) approach, the indicator displacement assay (IDA) seems to be a very sophisticated and versatile supramolecular sensing paradigm, and it has taken the phenomenon of molecular recognition to the next level in the realm of host-guest chemistry. Due to the unavailability of a comprehensive report on what has been done in the last decade in relation to IDAs, we decided to set down this account illustrating diverse indicator displacement assays (IDAs) in detail from the concept stage to recent developments relating to the detection of cationic, anionic, and neutral analytes. The authors conclude this account with future perspectives and highlight the limitations and challenges relating to IDAs which need to be overcome in order to realize the full potential of this popular sensing phenomenon. While we were finalizing our account for publication, a tutorial review by the research groups of Anslyn, Sessler, and Sun was published, which focuses mainly on diverse aspects of the chemistry related to IDAs. As can be seen, our review, besides discussing various basic IDA concepts, has a vast collection of information published in the past decade and hence, hopefully, will be very informative for the supramolecular community. We believe that this work will offer new insights for the construction of novel sensors operating through the IDA approach.
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Affiliation(s)
- Ishfaq Ahmad Rather
- Organic and Supramolecular Functional Materials Research Laboratory, Department of Chemistry, Jamia Millia Islamia, Jamia Nagar, Okhla, New Delhi 110025, India.
| | - Rashid Ali
- Organic and Supramolecular Functional Materials Research Laboratory, Department of Chemistry, Jamia Millia Islamia, Jamia Nagar, Okhla, New Delhi 110025, India.
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4
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Kim SY, Seo HY, Ha JH. A colorimetric sensor array for the discrimination of glucosinolates. Food Chem 2020; 328:127149. [PMID: 32480264 DOI: 10.1016/j.foodchem.2020.127149] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Revised: 05/11/2020] [Accepted: 05/24/2020] [Indexed: 11/17/2022]
Abstract
A novel approach for the discrimination of different glucosinolates (sinigrin, progoitrin, gluconapin, 4-methoxyglucobrassicin, glucoraphanin, glucobrassicin, glucoiberin, glucobrassicanapin, glucoraphenin, and glucoerucin) using a colorimetric sensor array (CSA) is reported herein. The developed CSA technique exhibited an acceptable linearity (r2 ≥ 0.97) over a concentration range of 0-150 μM for the 10 glucosinolates. The CSA coupled with principal component analysis and hierarchical cluster analysis correctly distinguished the majority of glucosinolate samples according to their type. In addition, the CSA coupled with linear discriminant analysis correctly classified the majority of 8 kinds of cruciferous vegetable samples with an overall accuracy of 94%. Furthermore, the partial least squares regression results showed that the CSA responses were correlated with the concentration in a correlation coefficient (Rp) range of 0.813-0.964. These results demonstrate that the described procedure based on the CSA technique could be useful for the rapid discrimination of different glucosinolates.
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Affiliation(s)
- Su-Yeon Kim
- Hygienic Safety and Analysis Center, World Institute of Kimchi, Gwangju 61755, Republic of Korea.
| | - Hye-Young Seo
- Hygienic Safety and Analysis Center, World Institute of Kimchi, Gwangju 61755, Republic of Korea.
| | - Ji-Hyoung Ha
- Hygienic Safety and Analysis Center, World Institute of Kimchi, Gwangju 61755, Republic of Korea.
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5
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Xue SF, Han XY, Chen ZH, Yan Q, Lin ZY, Zhang M, Shi G. The Chemistry of Europium(III) Encountering DNA: Sprouting Unique Sequence-Dependent Performances for Multifunctional Time-Resolved Luminescent Assays. Anal Chem 2018; 90:10614-10620. [PMID: 30099873 DOI: 10.1021/acs.analchem.8b03010] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Screening functional DNA that can fruitfully interact with metal ions is a long-standing hot topic in the fields of biotechnology, medicine, and DNA-based sensors. In this paper, we focus on the chemistry of europium(III) (Eu) coupled with single-stranded DNA (ssDNA), and we innovatively unveil that cytosine- and thymine-rich ssDNA oligomers (e.g., C16 and T16) can be effective antenna ligands to sensitize the luminescence of Eu. Luminescence lifetime spectroscopy, circular dichroic (CD) spectroscopy, and isothermal titration calorimetry (ITC) have been used to systematically characterize the interaction involved between Eu and ssDNA. In light of the resultant sequence-dependent performances, the long luminescence lifetime Eu/ssDNA-based label-free and versatile probes are further devised as a pattern distinction system for time-resolved luminescent (TRL) sensing applications. The interactions of metal ions and ssDNA can distinctively shift the antenna effect of ssDNA toward Eu as accessible pattern signals. As a result, as few as two Eu/ssDNA label-free TRL probes can discriminate 17 metal ions via principal component analysis (PCA). In addition, thiols can readily capture metal ions to switch the luminescence of Eu/ssDNA probes initially altered by metal ions. Hence, four Eu/ssDNA-metal ion ensembles are demonstrated to be a powerful label-free TRL sensor array for pattern differentiation of eight thiols and even chiral recognition of cysteine enantiomers with different concentrations. Moreover, the sensitive TRL detection of thiols in biofluids can be successfully realized by using our method, promising its potential practical usage. This is the first report of a ssDNA-sensitized Eu-based TRL platform for label-free yet multifunctional background-free sensing and would open a door for sprouting of more novel lanthanide ion/DNA-relevant strategies toward widespread applications.
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Affiliation(s)
- Shi-Fan Xue
- School of Chemistry and Molecular Engineering, Shanghai Key Laboratory for Urban Ecological Processes and Eco-Restoration , East China Normal University , 500 Dongchuan Road , Shanghai 200241 , China
| | - Xin-Yue Han
- School of Chemistry and Molecular Engineering, Shanghai Key Laboratory for Urban Ecological Processes and Eco-Restoration , East China Normal University , 500 Dongchuan Road , Shanghai 200241 , China
| | - Zi-Han Chen
- School of Chemistry and Molecular Engineering, Shanghai Key Laboratory for Urban Ecological Processes and Eco-Restoration , East China Normal University , 500 Dongchuan Road , Shanghai 200241 , China
| | - Qing Yan
- School of Chemistry and Molecular Engineering, Shanghai Key Laboratory for Urban Ecological Processes and Eco-Restoration , East China Normal University , 500 Dongchuan Road , Shanghai 200241 , China
| | - Zi-Yang Lin
- School of Chemistry and Molecular Engineering, Shanghai Key Laboratory for Urban Ecological Processes and Eco-Restoration , East China Normal University , 500 Dongchuan Road , Shanghai 200241 , China
| | - Min Zhang
- School of Chemistry and Molecular Engineering, Shanghai Key Laboratory for Urban Ecological Processes and Eco-Restoration , East China Normal University , 500 Dongchuan Road , Shanghai 200241 , China
| | - Guoyue Shi
- School of Chemistry and Molecular Engineering, Shanghai Key Laboratory for Urban Ecological Processes and Eco-Restoration , East China Normal University , 500 Dongchuan Road , Shanghai 200241 , China
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7
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Xue Z, Xiong L, Peng H, Rao H, Liu X, Lu X. A selective colorimetric sensing strategy for cysteine based on an indicator-displacement mechanism. NEW J CHEM 2018. [DOI: 10.1039/c7nj03887a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Rapid determination of cysteine in aqueous solution is important for the diagnosis and treatment of some diseases.
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Affiliation(s)
- Zhonghua Xue
- Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province
- College of Chemistry & Chemical Engineering
- Northwest Normal University
- Lanzhou
- China
| | - Lulu Xiong
- Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province
- College of Chemistry & Chemical Engineering
- Northwest Normal University
- Lanzhou
- China
| | - Hao Peng
- Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province
- College of Chemistry & Chemical Engineering
- Northwest Normal University
- Lanzhou
- China
| | - Honghong Rao
- School of Chemistry & Environmental Engineering
- Lanzhou City University
- Lanzhou
- China
| | - Xiuhui Liu
- Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province
- College of Chemistry & Chemical Engineering
- Northwest Normal University
- Lanzhou
- China
| | - Xiaoquan Lu
- Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province
- College of Chemistry & Chemical Engineering
- Northwest Normal University
- Lanzhou
- China
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8
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Apyari VV, Gorbunova MV, Isachenko AI, Dmitrienko SG, Zolotov YA. Use of household color-recording devices in quantitative chemical analysis. JOURNAL OF ANALYTICAL CHEMISTRY 2017. [DOI: 10.1134/s106193481711003x] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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9
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Xue Z, Fu X, Rao H, Hassan Ibrahim M, Xiong L, Liu X, Lu X. A colorimetric indicator-displacement assay for cysteine sensing based on a molecule-exchange mechanism. Talanta 2017; 174:667-672. [DOI: 10.1016/j.talanta.2017.07.012] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2017] [Revised: 06/23/2017] [Accepted: 07/01/2017] [Indexed: 11/28/2022]
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10
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Amperometric indicator displacement assay for biomarker monitoring: Indirectly sensing strategy for electrochemically inactive sarcosine. Talanta 2017; 167:666-671. [DOI: 10.1016/j.talanta.2017.03.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Revised: 02/26/2017] [Accepted: 03/02/2017] [Indexed: 01/11/2023]
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11
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Luo XG, Yi X, Bu XN, Hou CJ, Huo DQ, Yang M, Fa HB, Lei JC. Capillarity-based preparation system for optical colorimetric sensor arrays. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2017; 88:035111. [PMID: 28372441 DOI: 10.1063/1.4978414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In recent years, optical colorimetric sensor arrays have demonstrated beneficial features, including rapid response, high selectivity, and high specificity; as a result, it has been extensively applied in food inspection and chemical studies, among other fields. There are instruments in the current market available for the preparation of an optical colorimetric sensor array, but it lacks the corresponding research of the preparation mechanism. Therefore, in connection with the main features of this kind of sensor array such as consistency, based on the preparation method of contact spotting, combined with a capillary fluid model, Washburn equation, Laplace equation, etc., this paper develops a diffusion model of an optical colorimetric sensor array during its preparation and sets up an optical colorimetric sensor array preparation system based on this diffusion model. Finally, this paper compares and evaluates the sensor arrays prepared by the system and prepared manually in three aspects such as the quality of array point, response of array, and response result, and the results show that the performance index of the sensor array prepared by a system under this diffusion model is better than that of the sensor array of manual spotting, which meets the needs of the experiment.
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Affiliation(s)
- Xiao-Gang Luo
- Key Laboratory of Biorheology Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, China
| | - Xin Yi
- Key Laboratory of Biorheology Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, China
| | - Xiang-Nan Bu
- Key Laboratory of Biorheology Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, China
| | - Chang-Jun Hou
- Key Laboratory of Biorheology Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, China
| | - Dan-Qun Huo
- Key Laboratory of Biorheology Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, China
| | - Mei Yang
- Key Laboratory of Biorheology Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, China
| | - Huan-Bao Fa
- College of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
| | - Jin-Can Lei
- Postdoctoral Station of Science and Technology of Instrumentation, College of Optoelectronic Engineering, Chongqing University, Chongqing 400044, China
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12
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Development of sensitive and selective food sensors using new Re(I)-Pt(II) bimetallic complexes to detect volatile biogenic sulfides formed by meat spoilage. Food Chem 2017; 216:382-9. [DOI: 10.1016/j.foodchem.2016.08.046] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Revised: 08/15/2016] [Accepted: 08/16/2016] [Indexed: 11/21/2022]
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13
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Shahrajabian M, Hormozi-Nezhad MR. Design a New Strategy Based on Nanoparticle-Enhanced Chemiluminescence Sensor Array for Biothiols Discrimination. Sci Rep 2016; 6:32160. [PMID: 27574247 PMCID: PMC5004156 DOI: 10.1038/srep32160] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Accepted: 08/03/2016] [Indexed: 01/30/2023] Open
Abstract
Array-based sensor is an interesting approach that suggests an alternative to expensive analytical methods. In this work, we introduce a novel, simple, and sensitive nanoparticle-based chemiluminescence (CL) sensor array for discrimination of biothiols (e.g., cysteine, glutathione and glutathione disulfide). The proposed CL sensor array is based on the CL efficiencies of four types of enhanced nanoparticle-based CL systems. The intensity of CL was altered to varying degrees upon interaction with biothiols, producing unique CL response patterns. These distinct CL response patterns were collected as “fingerprints” and were then identified through chemometric methods, including linear discriminant analysis (LDA) and hierarchical cluster analysis (HCA). The developed array was able to successfully differentiate between cysteine, glutathione and glutathione disulfide in a wide concentration range. Moreover, it was applied to distinguish among the above analytes in human plasma.
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Affiliation(s)
- Maryam Shahrajabian
- Department of Chemistry, Sharif University of Technology, Tehran, 11155-9516, Iran
| | - M Reza Hormozi-Nezhad
- Department of Chemistry, Sharif University of Technology, Tehran, 11155-9516, Iran.,Institute for Nanoscience and Nanotechnology, Sharif University of Technology, Tehran, Iran
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14
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Lei C, Dai H, Fu Y, Ying Y, Li Y. Colorimetric Sensor Array for Thiols Discrimination Based on Urease-Metal Ion Pairs. Anal Chem 2016; 88:8542-7. [PMID: 27530744 DOI: 10.1021/acs.analchem.6b01493] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Thiols play a crucial role in various physiological functions, and the discrimination of thiols is a significant but difficult issue. Herein, we presented a new strategy for strengthening the discrimination of thiols by a facile colorimetric sensor array composed of a series of urease-metal ion pairs. The proposed sensor array was fabricated based on the interactions between thiols and metal ions and the effective activation of urease by thiols. Different thiols exhibited different affinities toward the metal ions, producing differential retentions of urease activity and generating distinct colorimetric response patterns. These response patterns are characteristic for each thiol and can be quantitatively differentiated by linear discriminant analysis (LDA). Cysteine (Cys), glutathione (GSH), and four other kinds of thiols have been well distinguished on the basis of this sensor array at a low concentration (1.0 μM). Remarkably, the practicability of the proposed sensor array was further validated by high accuracy (96.67%) identification of 30 unknown thiol samples. In this strategy, urease and its metal ion inhibitors were adapted to fabricate the sensor array, offering a facile way to develop sensitive array sensing systems based on inexpensive and commercially available enzymes and their inhibitors.
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Affiliation(s)
- Chunyang Lei
- College of Biosystems Engineering and Food Science, Zhejiang University , Hangzhou, Zhejiang 310058, China
| | - Huang Dai
- College of Biosystems Engineering and Food Science, Zhejiang University , Hangzhou, Zhejiang 310058, China
| | - Yingchun Fu
- College of Biosystems Engineering and Food Science, Zhejiang University , Hangzhou, Zhejiang 310058, China
| | - Yibin Ying
- College of Biosystems Engineering and Food Science, Zhejiang University , Hangzhou, Zhejiang 310058, China
| | - Yanbin Li
- College of Biosystems Engineering and Food Science, Zhejiang University , Hangzhou, Zhejiang 310058, China.,Department of Biological and Agricultural Engineering, University of Arkansas , Fayetteville, Arkansas 72701, United States
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15
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Enhanced chemiluminescence detection of glutathione based on isoluminol-PSM nanoparticles probe. Talanta 2016; 150:666-70. [DOI: 10.1016/j.talanta.2016.01.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2015] [Revised: 12/23/2015] [Accepted: 01/03/2016] [Indexed: 01/15/2023]
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16
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Capitán-Vallvey LF, López-Ruiz N, Martínez-Olmos A, Erenas MM, Palma AJ. Recent developments in computer vision-based analytical chemistry: A tutorial review. Anal Chim Acta 2015; 899:23-56. [DOI: 10.1016/j.aca.2015.10.009] [Citation(s) in RCA: 133] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Revised: 10/07/2015] [Accepted: 10/08/2015] [Indexed: 12/18/2022]
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17
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Leng Y, Xie K, Ye L, Li G, Lu Z, He J. Gold-nanoparticle-based colorimetric array for detection of dopamine in urine and serum. Talanta 2015; 139:89-95. [DOI: 10.1016/j.talanta.2015.02.038] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2014] [Revised: 02/17/2015] [Accepted: 02/20/2015] [Indexed: 02/07/2023]
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18
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Ariza-Avidad M, Agudo-Acemel M, Salinas-Castillo A, Capitán-Vallvey L. Inkjet-printed disposable metal complexing indicator-displacement assay for sulphide determination in water. Anal Chim Acta 2015; 872:55-62. [DOI: 10.1016/j.aca.2015.02.045] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2014] [Revised: 02/12/2015] [Accepted: 02/16/2015] [Indexed: 02/07/2023]
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19
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Qian S, Lin H. A facile approach to cross-reactive colorimetric sensor arrays: an application in the recognition of the 20 natural amino acids. RSC Adv 2014. [DOI: 10.1039/c4ra05004e] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A very facile approach for the design and fabrication of a colorimetric sensor array, by using only a single indicator–receptor couple at various ratios and concentrations, is described for the first time.
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Affiliation(s)
- Sihua Qian
- Division of Functional Materials and Nanodevices
- Ningbo Institute of Materials Technology and Engineering (NIMTE)
- Chinese Academy of Sciences
- Ningbo 315201, China
| | - Hengwei Lin
- Division of Functional Materials and Nanodevices
- Ningbo Institute of Materials Technology and Engineering (NIMTE)
- Chinese Academy of Sciences
- Ningbo 315201, China
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