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Puttaningaiah KPCH, Hur J. Recent Advances in Phthalocyanine-Based Hybrid Composites for Electrochemical Biosensors. MICROMACHINES 2024; 15:1061. [PMID: 39337721 PMCID: PMC11433738 DOI: 10.3390/mi15091061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2024] [Revised: 08/14/2024] [Accepted: 08/21/2024] [Indexed: 09/30/2024]
Abstract
Biosensors are smart devices that convert biochemical responses to electrical signals. Designing biosensor devices with high sensitivity and selectivity is of great interest because of their wide range of functional operations. However, the major obstacles in the practical application of biosensors are their binding affinity toward biomolecules and the conversion and amplification of the interaction to various signals such as electrical, optical, gravimetric, and electrochemical signals. Additionally, the enhancement of sensitivity, limit of detection, time of response, reproducibility, and stability are considerable challenges when designing an efficient biosensor. In this regard, hybrid composites have high sensitivity, selectivity, thermal stability, and tunable electrical conductivities. The integration of phthalocyanines (Pcs) with conductive materials such as carbon nanomaterials or metal nanoparticles (MNPs) improves the electrochemical response, signal amplification, and stability of biosensors. This review explores recent advancements in hybrid Pcs for biomolecule detection. Herein, we discuss the synthetic strategies, material properties, working mechanisms, and integration methods for designing electrochemical biosensors. Finally, the challenges and future directions of hybrid Pc composites for biosensor applications are discussed.
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Affiliation(s)
| | - Jaehyun Hur
- Department of Chemical, Biological, and Battery Engineering, Gachon University, Seongnam-si 13120, Gyeonggi-do, Republic of Korea
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2
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Ghéczy N, Tao S, Pour-Esmaeil S, Szymańska K, Jarzębski AB, Walde P. Performance of a Flow-Through Enzyme Reactor Prepared from a Silica Monolith and an α-Poly(D-Lysine)-Enzyme Conjugate. Macromol Biosci 2023; 23:e2200465. [PMID: 36598452 DOI: 10.1002/mabi.202200465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 12/26/2022] [Indexed: 01/05/2023]
Abstract
Horseradish peroxidase (HRP) is covalently bound in aqueous solution to polycationic α-poly(D-lysine) chains of ≈1000 repeating units length, PDL, via a bis-aryl hydrazone bond (BAH). Under the experimental conditions used, about 15 HRP molecules are bound along the PDL chain. The purified PDL-BAH-HRP conjugate is very stable when stored at micromolar HRP concentration in a pH 7.2 phosphate buffer solution at 4 °C. When a defined volume of such a conjugate solution of desired HRP concentration (i.e., HRP activity) is added to a macro- and mesoporous silica monolith with pore sizes of 20-30 µm as well as below 30 nm, quantitative and stable noncovalent conjugate immobilization is achieved. The HRP-containing monolith can be used as flow-through enzyme reactor for bioanalytical applications at neutral or slightly alkaline pH, as demonstrated for the determination of hydrogen peroxide in diluted honey. The conjugate can be detached from the monolith by simple enzyme reactor washing with an aqueous solution of pH 5.0, enabling reloading with fresh conjugate solution at pH 7.2. Compared to previously investigated polycationic dendronized polymer-enzyme conjugates with approximately the same average polymer chain length, the PDL-BAH-HRP conjugate appears to be equally suitable for HRP immobilization on silica surfaces.
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Affiliation(s)
- Nicolas Ghéczy
- Laboratory for Multifunctional Materials, Department of Materials, ETH Zürich, Vladimir-Prelog-Weg 5, Zürich, CH-8093, Switzerland
| | - Siyuan Tao
- Laboratory for Multifunctional Materials, Department of Materials, ETH Zürich, Vladimir-Prelog-Weg 5, Zürich, CH-8093, Switzerland
| | - Sajad Pour-Esmaeil
- Laboratory for Multifunctional Materials, Department of Materials, ETH Zürich, Vladimir-Prelog-Weg 5, Zürich, CH-8093, Switzerland
| | - Katarzyna Szymańska
- Department of Chemical Engineering and Process Design, Silesian University of Technology, Gliwice, 44-100, Poland
| | - Andrzej B Jarzębski
- Institute of Chemical Engineering, Polish Academy of Sciences, Gliwice, 44-100, Poland
| | - Peter Walde
- Laboratory for Multifunctional Materials, Department of Materials, ETH Zürich, Vladimir-Prelog-Weg 5, Zürich, CH-8093, Switzerland
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3
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Celik C, Kalin G, Cetinkaya Z, Ildiz N, Ocsoy I. Recent Advances in Colorimetric Tests for the Detection of Infectious Diseases and Antimicrobial Resistance. Diagnostics (Basel) 2023; 13:2427. [PMID: 37510171 PMCID: PMC10377832 DOI: 10.3390/diagnostics13142427] [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: 05/31/2023] [Revised: 06/23/2023] [Accepted: 06/27/2023] [Indexed: 07/30/2023] Open
Abstract
Diagnosis of infection-causing microorganisms with sensitive, rapid, selective and economical diagnostic tests is critical to start the right treatment. With these tests, the spread of infections can be prevented. In addition to that, the detection of antimicrobial resistance also makes a significant contribution to public health. In recent years, different types of diagnostic tests have been developed as alternatives to traditional diagnostic tests used in clinics. In particular, colorimetric tests, which minimize the need for an instrument, have advantages owing to their cost effectiveness, rapid response and naked-eye detection and practical use. In this review, we especially focused on pH indicators and nanomaterial-based colorimetric tests in detection of infection-causing microorganisms and antimicrobial resistance.
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Affiliation(s)
- Cagla Celik
- Pharmacy Services Program, Vocational School of Health Services, Hitit University, Corum 19000, Turkey
| | - Gamze Kalin
- Department of Infectious Diseases and Clinical Microbiology, Faculty of Medicine, Erciyes University, Kayseri 38039, Turkey
| | | | - Nilay Ildiz
- Medical Imaging Department, Vocational School of Health Services, Bandırma Onyedi Eylul University, Bandirma 10200, Turkey
| | - Ismail Ocsoy
- Department of Analytical Chemistry, Faculty of Pharmacy, Erciyes University, Kayseri 38039, Turkey
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4
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Aghababaie M, Foroushani ES, Changani Z, Gunani Z, Mobarakeh MS, Hadady H, Khedri M, Maleki R, Asadnia M, Razmjou A. Recent Advances In the development of enzymatic paper-based microfluidic biosensors. Biosens Bioelectron 2023; 226:115131. [PMID: 36804663 DOI: 10.1016/j.bios.2023.115131] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Revised: 02/03/2023] [Accepted: 02/04/2023] [Indexed: 02/09/2023]
Abstract
Using microfluidic paper-based analytical devices has attracted considerable attention in recent years. This is mainly due to their low cost, availability, portability, simple design, high selectivity, and sensitivity. Owing to their specific substrates and catalytic functions, enzymes are the most commonly used bioactive agents in μPADs. Enzymatic μPADs are various in design, fabrication, and detection methods. This paper provides a comprehensive review of the development of enzymatic μPADs by considering the methods of detection and fabrication. Particularly, techniques for mass production of these enzymatic μPADs for use in different fields such as medicine, environment, agriculture, and food industries are critically discussed. This paper aims to provide a critical review of μPADs and discuss different fabrication methods as the central parts of the μPADs production categorized into printable and non-printable methods. In addition, state-of-the-art technologies such as fully printed enzymatic μPADs for rapid, low-cost, and mass production and improvement have been considered.
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Affiliation(s)
- Marzieh Aghababaie
- Auckland Bioengineering Institute, University of Auckland, Auckland, 1010, New Zealand; Department of Biotechnology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, Iran.
| | - Elnaz Sarrami Foroushani
- Department of Biotechnology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, Iran.
| | - Zinat Changani
- Department of Biotechnology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, Iran; School of Engineering, Macquarie University, Sydney, New South Wales, 2109, Australia.
| | - Zahra Gunani
- Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, 00790, FInland.
| | - Mahsa Salehi Mobarakeh
- Department of Biotechnology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, Iran; Department of Mechanical and Aerospace Engineering, Carleton University, Colonel by Drive, Ottawa, ON, K1S 5B6, Canada.
| | - Hanieh Hadady
- Cell Science Research Centre, Royan Institute of Biotechnology, Isfahan, Iran.
| | - Mohammad Khedri
- Department of Chemical Engineering, Amirkabir University of Technology, 424 Hafez Avenue, Tehran, Iran.
| | - Reza Maleki
- Department of Chemical Engineering, Shiraz University, Shiraz, Iran
| | - Mohsen Asadnia
- School of Engineering, Macquarie University, Sydney, New South Wales, 2109, Australia
| | - Amir Razmjou
- Mineral Recovery Research Center (MRRC), School of Engineering, Edith Cowan University, Joondalup, Perth, WA, 6027, Australia; UNESCO Centre for Membrane Science and Technology, School of Chemical Engineering, University of New South Wales, Sydney, NSW, 2052, Australia.
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5
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Drozd DD, Byzova NA, Pidenko PS, Tsyupka DV, Strokin PD, Goryacheva OA, Zherdev AV, Goryacheva IY, Dzantiev BB. Luminescent alloyed quantum dots for turn-off enzyme-based assay. Anal Bioanal Chem 2022; 414:4471-4480. [PMID: 35359179 DOI: 10.1007/s00216-022-04016-4] [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: 02/16/2022] [Accepted: 03/11/2022] [Indexed: 11/01/2022]
Abstract
A new bioanalytical labeling system based on alloyed quantum dots' (QDs) photoluminescence quenching caused by an enzymatic reaction has been developed and tested for the first time. The catalytic role of the enzyme provides high sensitivity and the possibility of varying detecting time to improve assay sensitivity. Alloyed luminescent QDs were chosen in view of their small size (5-7 nm) and the high sensitivity of their optical properties to physicochemical interactions. Here, we described the synthesis of alloyed luminescent QDs and demonstrated the possibility of using them as a luminescent turn-off substrate for enzymatic assay. Synthesized alloyed QDs were found to be a sensitive turn-off substrate for glucose oxidase in homogeneous and heterogeneous assay models. CdZnSeS and CdZnSeS/ZnS QDs covered with dihydrolipoic acid and 2-mercaptoethanol were tested. A glucose oxidase limit of detection of 6.6 nM for the heterogenous high-throughput model assay was reached.
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Affiliation(s)
- Daniil D Drozd
- Institute of Chemistry, Saratov State University, Astrakhanskaya 83, 410012, Saratov, Russia.
| | - Nadezhda A Byzova
- A.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Leninsky prospect 33, 119071, Moscow, Russia
| | - Pavel S Pidenko
- Institute of Chemistry, Saratov State University, Astrakhanskaya 83, 410012, Saratov, Russia
| | - Daria V Tsyupka
- Institute of Chemistry, Saratov State University, Astrakhanskaya 83, 410012, Saratov, Russia
| | - Pavel D Strokin
- Institute of Chemistry, Saratov State University, Astrakhanskaya 83, 410012, Saratov, Russia
| | - Olga A Goryacheva
- Institute of Chemistry, Saratov State University, Astrakhanskaya 83, 410012, Saratov, Russia
| | - Anatoly V Zherdev
- A.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Leninsky prospect 33, 119071, Moscow, Russia
| | - Irina Yu Goryacheva
- Institute of Chemistry, Saratov State University, Astrakhanskaya 83, 410012, Saratov, Russia
| | - Boris B Dzantiev
- A.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Leninsky prospect 33, 119071, Moscow, Russia
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6
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Lu F, Yang S, Ning Y, Wang F, Ji X, He Z. A fluorescence color card for point-of-care testing (POCT) and its application in simultaneous detection. Analyst 2021; 146:5074-5080. [PMID: 34318784 DOI: 10.1039/d1an01035b] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Diabetes mellitus has received much attention because its complications include liver, kidney, eye, heart and cerebrovascular diseases. Thus, it would be highly significant to develop a rapid and efficient method for glucose detection in biological samples. In this work, a point-of-care testing (POCT) method of glucose detection was proposed using a standard colorimetric card for semi-quantitative determination patterns. In the prepared fluorescence color card for glucose, a good linear relationship was acquired by plotting the ratio of the grayscale value (I/I0) versus the logarithm of glucose concentration within 100.0 to 1000.0 μmol L-1, and the LOD of glucose detection was 1.1 μmol L-1. A large number of actual samples (30 serum and 7 urine) were analyzed and the results demonstrated that this method had good potential to be applied in the primary screening of diabetic patients. In addition, this method is universal and can be applied in the simultaneous detection of multiple small molecules. It provides a new strategy for the primary screening of multiple diseases simultaneously, which presents excellent application potential.
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Affiliation(s)
- Fan Lu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China.
| | - Sisi Yang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China.
| | - Yu Ning
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China.
| | - Fubing Wang
- Department of Laboratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Xinghu Ji
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China.
| | - Zhike He
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China.
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7
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Noviana E, Ozer T, Carrell CS, Link JS, McMahon C, Jang I, Henry CS. Microfluidic Paper-Based Analytical Devices: From Design to Applications. Chem Rev 2021; 121:11835-11885. [DOI: 10.1021/acs.chemrev.0c01335] [Citation(s) in RCA: 91] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Eka Noviana
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Universitas Gadjah Mada, Yogyakarta, Indonesia 55281
| | - Tugba Ozer
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
- Department of Bioengineering, Faculty of Chemical and Metallurgical Engineering, Yildiz Technical University, Istanbul, Turkey 34220
| | - Cody S. Carrell
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Jeremy S. Link
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Catherine McMahon
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Ilhoon Jang
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
- Institute of Nano Science and Technology, Hanyang University, Seoul, South Korea 04763
| | - Charles S. Henry
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
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8
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Li Z, Xi Y, Zhao A, Jiang J, Li B, Yang X, He J, Li F. Cobalt-imidazole metal-organic framework loaded with luminol for paper-based chemiluminescence detection of catechol with use of a smartphone. Anal Bioanal Chem 2021; 413:3541-3550. [PMID: 33782733 DOI: 10.1007/s00216-021-03305-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2021] [Revised: 03/15/2021] [Accepted: 03/22/2021] [Indexed: 02/03/2023]
Abstract
Chemiluminescence (CL) reagent luminol was loaded into the porous structure of cobalt-imidazole metal-organic framework (MOF) ZIF-67 to obtain luminol-functionalized ZIF-67 (luminol@ZIF-67) with CL property. The morphology, composition, CL property, and CL mechanism of luminol@ZIF-67 were carefully investigated. The obtained luminol@ZIF-67 exhibited strong, stable, and visible CL emission that reacted with H2O2, attributed to the strong catalytic effect of ZIF-67 combined with the shortened diffusion distance between luminol and the catalytic center. The CL intensity of luminol@ZIF-67 was more than 550 times higher than that of luminol. Catechol can effectively quench the CL emission of luminol@ZIF-67 that reacted with H2O2. Then, a simple paper-based CL imaging detection method was developed for the detection of catechol by using a smartphone as a portable detector. The linear calibration curve of the developed CL assay for catechol ranged from 5 to 100 mg/L with detection limit of 1.1 mg/L (S/N = 3δ). The strong CL emission of luminol@ZIF-67 combined with the effective quench ability of catechol guaranteed high sensitivity of the detection method. The practical application ability of the developed CL assay was tested by the determination of catechol in tea and tap water samples, resulting in acceptable results. This work provides an effective paper-based CL detection method for catechol and enriches the species of the chemiluminescent MOF material.
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Affiliation(s)
- Zimu Li
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, 230009, Anhui, China
| | - Yachao Xi
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, 230009, Anhui, China
| | - Anqi Zhao
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, 230009, Anhui, China
| | - Jianming Jiang
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, 230009, Anhui, China
| | - Bing Li
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, 230009, Anhui, China
| | - Xinming Yang
- Anhui Province Key Laboratory of Green Manufacturing of Power Battery, Tianneng Battery Group (Anhui Company), Jieshou, 236500, Anhui, China
| | - Jianbo He
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, 230009, Anhui, China
| | - Fang Li
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, 230009, Anhui, China.
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Rodriguez-Abetxuko A, Sánchez-deAlcázar D, Muñumer P, Beloqui A. Tunable Polymeric Scaffolds for Enzyme Immobilization. Front Bioeng Biotechnol 2020; 8:830. [PMID: 32850710 PMCID: PMC7406678 DOI: 10.3389/fbioe.2020.00830] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Accepted: 06/29/2020] [Indexed: 12/12/2022] Open
Abstract
The number of methodologies for the immobilization of enzymes using polymeric supports is continuously growing due to the developments in the fields of biotechnology, polymer chemistry, and nanotechnology in the last years. Despite being excellent catalysts, enzymes are very sensitive molecules and can undergo denaturation beyond their natural environment. For overcoming this issue, polymer chemistry offers a wealth of opportunities for the successful combination of enzymes with versatile natural or synthetic polymers. The fabrication of functional, stable, and robust biocatalytic hybrid materials (nanoparticles, capsules, hydrogels, or films) has been proven advantageous for several applications such as biomedicine, organic synthesis, biosensing, and bioremediation. In this review, supported with recent examples of enzyme-protein hybrids, we provide an overview of the methods used to combine both macromolecules, as well as the future directions and the main challenges that are currently being tackled in this field.
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Affiliation(s)
| | | | - Pablo Muñumer
- PolyZymes group, POLYMAT and Department of Applied Chemistry (UPV/EHU), San Sebastián, Spain
| | - Ana Beloqui
- PolyZymes group, POLYMAT and Department of Applied Chemistry (UPV/EHU), San Sebastián, Spain
- Department of Applied Chemistry, University of the Basque Country, San Sebastián, Spain
- IKERBASQUE, Bilbao, Spain
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10
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Speranskaya ES, Drozd DD, Pidenko PS, Goryacheva IY. Enzyme modulation of quantum dot luminescence: Application in bioanalysis. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2020.115897] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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11
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Wasito H, Fatoni A, Hermawan D, Susilowati SS. Immobilized bacterial biosensor for rapid and effective monitoring of acute toxicity in water. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 170:205-209. [PMID: 30529914 DOI: 10.1016/j.ecoenv.2018.11.141] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Revised: 11/29/2018] [Accepted: 11/30/2018] [Indexed: 06/09/2023]
Abstract
The use of biosensors by using microorganisms such as bacteria have short life cycles and provide other advantages. One colorimetric biosensor technique that has been developed is the use of a biosensor utilizing the incorporation of Prussian blue formation reactions mediated by E. coli bioreactors with ferricyanide. Immobilization is a method that allows the bacteria can be used for long-term without reducing its ability as bioreceptor. This study aimed to develop a novel and rapid immobilized bacterial biosensor for the detection of toxic compound in water and to evaluate their analytical performances. Immobilization of E. coli performed by trapping method using alginate material support. The bacterial suspension was mixed with sodium alginate (1:1 v/v), and the mixture was continuously dropped in CaCl2 solution to be a form of beads. The beads were used as bioreceptor to detect toxicants regarding cadmium, arsenic, mercury, chromium and lead solutions with Prussian blue as a colorimetric indicator. The linearity and sensitivity of detection of beads to the toxicants were tested, the stability of repeated use and storage were evaluated as well. The results showed that E. coli could be immobilized using alginate with response value was correlated with toxic concentration. The developed biosensor was more stable when used repeatedly and could be stored in a long time. The immobilization of E. coli in calcium alginate bead was successfully performed as a biosensor system for monitoring acute toxicity in water.
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Affiliation(s)
- Hendri Wasito
- Department of Pharmacy, Faculty of Health Sciences, Jenderal Soedirman University, Purwokerto 53123, Indonesia; Biosensory Technology Division, Center for Maritime Biosciences Studies, Jenderal Soedirman University, Purwokerto 53123, Indonesia.
| | - Amin Fatoni
- Department of Chemistry, Faculty of Mathematics and Natural sciences, Jenderal Soedirman University, Purwokerto 53123, Indonesia; Biosensory Technology Division, Center for Maritime Biosciences Studies, Jenderal Soedirman University, Purwokerto 53123, Indonesia
| | - Dadan Hermawan
- Department of Chemistry, Faculty of Mathematics and Natural sciences, Jenderal Soedirman University, Purwokerto 53123, Indonesia
| | - Sri Sutji Susilowati
- Department of Pharmacy, Faculty of Health Sciences, Jenderal Soedirman University, Purwokerto 53123, Indonesia
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12
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Tang Z, Jiang K, Sun S, Qian S, Wang Y, Lin H. A conjugated carbon-dot–tyrosinase bioprobe for highly selective and sensitive detection of dopamine. Analyst 2019; 144:468-473. [DOI: 10.1039/c8an01659c] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A conjugated carbon-dot–tyrosinase bioprobe was first designed and applied for sensitive and selective dopamine detection in human serum.
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Affiliation(s)
- Zhongdi Tang
- Key Laboratory of Graphene Technologies and Applications of Zhejiang Province
- Ningbo Institute of Materials Technology & Engineering
- Chinese Academy of Sciences
- Ningbo 315201
- P. R. China
| | - Kai Jiang
- Key Laboratory of Graphene Technologies and Applications of Zhejiang Province
- Ningbo Institute of Materials Technology & Engineering
- Chinese Academy of Sciences
- Ningbo 315201
- P. R. China
| | - Shan Sun
- Key Laboratory of Graphene Technologies and Applications of Zhejiang Province
- Ningbo Institute of Materials Technology & Engineering
- Chinese Academy of Sciences
- Ningbo 315201
- P. R. China
| | - Sihua Qian
- Key Laboratory of Graphene Technologies and Applications of Zhejiang Province
- Ningbo Institute of Materials Technology & Engineering
- Chinese Academy of Sciences
- Ningbo 315201
- P. R. China
| | - Yuhui Wang
- Key Laboratory of Graphene Technologies and Applications of Zhejiang Province
- Ningbo Institute of Materials Technology & Engineering
- Chinese Academy of Sciences
- Ningbo 315201
- P. R. China
| | - Hengwei Lin
- Key Laboratory of Graphene Technologies and Applications of Zhejiang Province
- Ningbo Institute of Materials Technology & Engineering
- Chinese Academy of Sciences
- Ningbo 315201
- P. R. China
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13
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Abstract
Point-of-care and in-field technologies for rapid, sensitive and selective detection of molecular biomarkers have attracted much interest. Rugged bioassay technology capable of fast detection of markers for pathogens and genetic diseases would in particular impact the quality of health care in the developing world, but would also make possible more extensive screening in developed countries to tackle problems such as those associated with water and food quality, and tracking of infectious organisms in hospitals and clinics. Literature trends indicate an increasing interest in the use of nanomaterials, and in particular luminescent nanoparticles, for assay development. These materials may offer attributes for development of assays and sensors that could achieve improvements in analytical figures of merit, and provide practical advantages in sensitivity and stability. There is opportunity for cost-efficiency and technical simplicity by implementation of luminescent nanomaterials as the basis for transduction technology, when combined with the use of paper substrates, and the ubiquitous availability of cell phone cameras and associated infrastructure for optical detection and transmission of results. Luminescent nanoparticles have been described for a broad range of bioanalytical targets including small molecules, oligonucleotides, peptides, proteins, saccharides and whole cells (e.g., cancer diagnostics). The luminescent nanomaterials that are described herein for paper-based bioassays include metal nanoparticles, quantum dots and lanthanide-doped nanocrystals. These nanomaterials often have broad and strong absorption and narrow emission bands that improve opportunity for multiplexed analysis, and can be designed to provide emission at wavelengths that are efficiently processed by conventional digital cameras. Luminescent nanoparticles can be embedded in paper substrates that are designed to direct fluid flow, and the resulting combination of technologies can offer competitive analytical performance at relatively low cost.
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Affiliation(s)
- Qiang Ju
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, P.R. China. and Chemical Sensors Group, Department of Chemical and Physical Sciences, University of Toronto Mississauga, 3359 Mississauga Road, ON, Canada L5L 1C6.
| | - M Omair Noor
- Chemical Sensors Group, Department of Chemical and Physical Sciences, University of Toronto Mississauga, 3359 Mississauga Road, ON, Canada L5L 1C6.
| | - Ulrich J Krull
- Chemical Sensors Group, Department of Chemical and Physical Sciences, University of Toronto Mississauga, 3359 Mississauga Road, ON, Canada L5L 1C6.
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14
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Vijaya Bharathi M, Maiti S, Sarkar B, Ghosh K, Paira P. Water-mediated green synthesis of PbS quantum dot and its glutathione and biotin conjugates for non-invasive live cell imaging. ROYAL SOCIETY OPEN SCIENCE 2018; 5:171614. [PMID: 29657768 PMCID: PMC5882692 DOI: 10.1098/rsos.171614] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2017] [Accepted: 02/09/2018] [Indexed: 05/14/2023]
Abstract
This study addresses the cellular uptake of nanomaterials in the field of bio-applications. In the present study, we have synthesized water-soluble lead sulfide quantum dot (PbS QD) with glutathione and 3-MPA (mercaptopropionic acid) as the stabilizing ligand using a green approach. 3-MPA-capped QDs were further modified with streptavidin and then bound to biotin because of its high conjugation efficiency. Labelling and bio-imaging of cells with these bio-conjugated QDs were evaluated. The bright red fluorescence from these types of QDs in HeLa cells makes these materials suitable for deep tissue imaging.
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Affiliation(s)
- M. Vijaya Bharathi
- Department of Chemistry, School of Advanced Sciences, VIT University, Vellore 632014, Tamilnadu, India
- School of Electronics Engineering (SENSE), VIT University, Chennai Campus, Chennai, Tamilnadu, India
| | - Santanu Maiti
- Department of Chemistry, School of Advanced Sciences, VIT University, Vellore 632014, Tamilnadu, India
| | - Bidisha Sarkar
- Department of Chemistry, School of Advanced Sciences, VIT University, Vellore 632014, Tamilnadu, India
| | - Kaustab Ghosh
- Department of Chemistry, School of Advanced Sciences, VIT University, Vellore 632014, Tamilnadu, India
- School of Electronics Engineering (SENSE), VIT University, Chennai Campus, Chennai, Tamilnadu, India
- Authors for correspondence: Kaustab Ghosh e-mail:
| | - Priyankar Paira
- Department of Chemistry, School of Advanced Sciences, VIT University, Vellore 632014, Tamilnadu, India
- Authors for correspondence: Priyankar Paira e-mail:
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15
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Spittel D, Poppe J, Meerbach C, Ziegler C, Hickey SG, Eychmüller A. Absolute Energy Level Positions in CdSe Nanostructures from Potential-Modulated Absorption Spectroscopy (EMAS). ACS NANO 2017; 11:12174-12184. [PMID: 29178801 DOI: 10.1021/acsnano.7b05300] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Semiconductor nanostructures such as CdSe quantum dots and colloidal nanoplatelets exhibit remarkable optical properties, making them interesting for applications in optoelectronics and photocatalysis. For both areas of application a detailed understanding of the electronic structure is essential to achieve highly efficient devices. The electronic structure can be probed using the fact that optical properties of semiconductor nanoparticles are found to be extremely sensitive to the presence of excess charges that can for instance be generated by means of an electrochemical charge transfer via an electrode. Here we present the use of EMAS as a versatile spectroelectrochemical method to obtain absolute band edge positions of CdSe nanostructures versus a well-defined reference electrode under ambient conditions. In this, the spectral properties of the nanoparticles are monitored with respect to an applied electrochemical potential. We developed a bleaching model that yields the lowest electronic state in the conduction band of the nanostructures. A change in the band edge positions caused by quantum confinement is shown both for CdSe quantum dots and for colloidal nanoplatelets. In the case of CdSe quantum dots these findings are in good agreement with tight binding calculations. The method presented is not limited to CdSe nanostructures but can be used as a universal tool. Hence, this technique allows the determination of absolute band edge positions of a large variety of materials used in various applications.
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Affiliation(s)
- Daniel Spittel
- Physical Chemistry, Technische Universität Dresden , Bergstraße 66b, 01062 Dresden, Germany
| | - Jan Poppe
- Physical Chemistry, Technische Universität Dresden , Bergstraße 66b, 01062 Dresden, Germany
| | - Christian Meerbach
- Physical Chemistry, Technische Universität Dresden , Bergstraße 66b, 01062 Dresden, Germany
| | - Christoph Ziegler
- Physical Chemistry, Technische Universität Dresden , Bergstraße 66b, 01062 Dresden, Germany
| | - Stephen G Hickey
- School of Chemistry and Biosciences, University of Bradford , Bradford, BD7 1DP, Great Britain
| | - Alexander Eychmüller
- Physical Chemistry, Technische Universität Dresden , Bergstraße 66b, 01062 Dresden, Germany
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16
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Cai Y, You J, You Z, Dong F, Du S, Zhang L. Profuse color-evolution-based fluorescent test paper sensor for rapid and visual monitoring of endogenous Cu 2+ in human urine. Biosens Bioelectron 2017; 99:332-337. [PMID: 28787679 DOI: 10.1016/j.bios.2017.07.072] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Revised: 07/17/2017] [Accepted: 07/29/2017] [Indexed: 01/26/2023]
Abstract
The fluorescent paper for colorimetric detection of metal ions has been widely fabricated using various sensing probes, but it still remains an elusive task to design a test paper with multicolor variation with target dosages for accurate determination. Herein, we report a profuse color-evolution-based fluorescent test paper sensor for rapid and visual monitoring of Cu2+ in human urine by printing tricolor probe onto filter paper. The tricolor probe consists of blue-emission carbon dots (bCDs), green-emission quantum dots (gQDs) and red-emission quantum dots (rQDs), which is based on the principle that the fluorescence of gQDs and rQDs are simultaneously quenched by Cu2+, whereas the bCDs as the photostable internal standard is insensitive to Cu2+. Upon the addition of different amounts of Cu2+, the ratiometric fluorescence intensity of the tricolor probe continuously varied, leading to color changes from shallow pink to blue with a detection limit of 1.3nM. When the tricolor probe solution was printed onto a sheet of filter paper, as-obtained test paper displayed a more profuse color evolution from shallow pink to light salmon to dark orange to olive drab to dark olive green to slate blue to royal blue and to final dark blue with the increase of Cu2+ concentration compared with dual-color probe-based test paper, and dosage scale as low as 6.0nM was clearly discriminated. The sensing test paper is simple, rapid and inexpensive, and serves as a visual platform for ultrasensitive monitoring of endogenous Cu2+ in human urine.
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Affiliation(s)
- Yueqing Cai
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu 211166, China
| | - Junhui You
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu 211166, China
| | - Zhengyi You
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu 211166, China
| | - Fang Dong
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu 211166, China
| | - Shuhu Du
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu 211166, China.
| | - Liying Zhang
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu 211166, China.
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17
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Qiu Z, Shu J, Tang D. Bioresponsive Release System for Visual Fluorescence Detection of Carcinoembryonic Antigen from Mesoporous Silica Nanocontainers Mediated Optical Color on Quantum Dot-Enzyme-Impregnated Paper. Anal Chem 2017; 89:5152-5160. [PMID: 28376620 DOI: 10.1021/acs.analchem.7b00989] [Citation(s) in RCA: 330] [Impact Index Per Article: 47.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
An all-in-one paper-based analytical device (PAD) was successfully developed for visual fluorescence detection of carcinoembryonic antigen (CEA) on CdTe/CdSe quantum dot (QD)-enzyme-impregnated paper by coupling with a bioresponsive controlled-release system from DNA-gated mesoporous silica nanocontainers (MSNs). The assay was carried out in a centrifuge tube by using glucose-loaded MSNs with a CEA aptamer and a QD-enzyme-paper attached on the lid. Initially, single-strand complementary DNA to a CEA aptamer was covalently conjugated to the aminated MSN, and then glucose (enzyme substrate) molecules were gated into the pore with the help of the aptamer. Glucose oxidase (GOD) and CdTe/CdSe QDs were coimmobilized on paper for the visual fluorescence signal output. Upon target CEA introduction in the detection cell, the analyte specifically reacted with the immobilized aptamer on the MSN to open the pore, thereby resulting in the glucose release. The released glucose was oxidized by the immobilized GOD on paper to produce gluconic acid and hydrogen peroxide, and the latter quenched the fluorescence of CdTe/CdSe QDs, which could be determined by the naked eye on a portable smartphone and a commercial fluorospectrometer. Under optimal conditions, the PAD-based sensing system enabled sensitive discrimination of target CEA against other biomarkers or proteins in a linear range of 0.05-20 ng mL-1 with a limit of detection of 6.7 pg mL-1 (ppt). In addition, our strategy displayed high specificity, good reproducibility, and acceptable accuracy for analyzing human serum specimens with a commercial human CEA ELISA kit. Importantly, this methodology offers promise for simple analysis of biological samples and is suitable for use in the mass production of miniaturized devices, thus opening new opportunities for protein diagnostics and biosecurity.
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Affiliation(s)
- Zhenli Qiu
- Key Laboratory of Analysis and Detection for Food Safety (MOE & Fujian Province), Collaborative Innovation Center of Detection Technology for Haixi Food Safety and Products (Fujian Province), State Key Laboratory of Photocatalysis on Energy and Environment, Department of Chemistry, Fuzhou University , Fuzhou 350108, People's Republic of China
| | - Jian Shu
- Key Laboratory of Analysis and Detection for Food Safety (MOE & Fujian Province), Collaborative Innovation Center of Detection Technology for Haixi Food Safety and Products (Fujian Province), State Key Laboratory of Photocatalysis on Energy and Environment, Department of Chemistry, Fuzhou University , Fuzhou 350108, People's Republic of China
| | - Dianping Tang
- Key Laboratory of Analysis and Detection for Food Safety (MOE & Fujian Province), Collaborative Innovation Center of Detection Technology for Haixi Food Safety and Products (Fujian Province), State Key Laboratory of Photocatalysis on Energy and Environment, Department of Chemistry, Fuzhou University , Fuzhou 350108, People's Republic of China
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18
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Syedmoradi L, Daneshpour M, Alvandipour M, Gomez FA, Hajghassem H, Omidfar K. Point of care testing: The impact of nanotechnology. Biosens Bioelectron 2017; 87:373-387. [DOI: 10.1016/j.bios.2016.08.084] [Citation(s) in RCA: 235] [Impact Index Per Article: 33.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2016] [Revised: 08/15/2016] [Accepted: 08/25/2016] [Indexed: 11/29/2022]
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19
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Cunningham JC, DeGregory PR, Crooks RM. New Functionalities for Paper-Based Sensors Lead to Simplified User Operation, Lower Limits of Detection, and New Applications. ANNUAL REVIEW OF ANALYTICAL CHEMISTRY (PALO ALTO, CALIF.) 2016; 9:183-202. [PMID: 27049635 DOI: 10.1146/annurev-anchem-071015-041605] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
In the last decade, paper analytical devices (PADs) have evolved into sophisticated yet simple sensors with biological and environmental applications in the developed and developing world. The focus of this review is the technological improvements that have over the past five years increased the applicability of PADs to real-world problems. Specifically, this review reports on advances in sample processing, fluid flow control, signal amplification, and component integration. Throughout, we have sought to emphasize advances that retain the main virtues of PADs: low cost, portability, and simplicity.
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Affiliation(s)
| | - Paul R DeGregory
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712-1224;
| | - Richard M Crooks
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712-1224;
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20
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Kong W, Yang X, Yang M, Zhou H, Ouyang Z, Zhao M. Photoluminescent nanosensors capped with quantum dots for high-throughput determination of trace contaminants: Strategies for enhancing analytical performance. Trends Analyt Chem 2016. [DOI: 10.1016/j.trac.2015.07.013] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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21
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Huang K, Xu K, Zhu W, Yang L, Hou X, Zheng C. Hydride Generation for Headspace Solid-Phase Extraction with CdTe Quantum Dots Immobilized on Paper for Sensitive Visual Detection of Selenium. Anal Chem 2015; 88:789-95. [DOI: 10.1021/acs.analchem.5b03128] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Ke Huang
- Key
Laboratory of Green Chemistry and Technology of MOE, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China
| | - Kailai Xu
- Key
Laboratory of Green Chemistry and Technology of MOE, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China
| | - Wei Zhu
- Key
Laboratory of Green Chemistry and Technology of MOE, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China
| | - Lu Yang
- National Research
Council Canada, Ottawa, Ontario K1A 0R6, Canada
| | - Xiandeng Hou
- Key
Laboratory of Green Chemistry and Technology of MOE, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China
- Analytical & Testing Center, Sichuan University, Chengdu, Sichuan 610064, China
| | - Chengbin Zheng
- Key
Laboratory of Green Chemistry and Technology of MOE, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China
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22
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Abstract
A simple and inexpensive method to fabricate a colloidal CdSe/ZnS quantum dots-modified paper-based assay for glucose is herein reported. The circular paper sheets were uniformly loaded and displayed strong fluorescence under a conventional hand-held UV lamp (365 nm). The assay is based on the use of glucose oxidase enzyme (GOx), which impregnated the paper sheets, producing H2O2 upon the reaction with the glucose contained in the samples. After 20 min of exposure, the fluorescence intensity changed due to the quenching caused by H2O2. To obtain a reading, the paper sheets were photographed under 365 nm excitation using a digital camera. Several parameters, including the amount of QD, sample pH, and amount of GOx were optimized to maximize the response to glucose. The paper-based assay showed a sigmoidal-shaped response with respect to the glucose concentration in the 5-200 mg·dL-1 range (limit of detection of 5 μg·dL-1), demonstrating their potential use for biomedical applications.
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23
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Kundu A, Hariharan PS, Prabakaran K, Anthony SP. Synthesis of new colori/fluorimetric chemosensor for selective sensing of biologically important Fe³⁺, Cu²⁺ and Zn²⁺ metal ions. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 151:426-431. [PMID: 26148831 DOI: 10.1016/j.saa.2015.06.107] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Revised: 06/23/2015] [Accepted: 06/24/2015] [Indexed: 06/04/2023]
Abstract
New Schiff base chemosensors (1 and 2) based on aryl ether amine were synthesized and demonstrated positional isomer and functional group dependent colori/fluorimetric sensing of Fe(3+), Cu(2+) and Zn(2+) at ppm level. Methoxy salicylaldehyde based chemosensor 1 exhibited selective colorimetric sensing of Fe(3+) whereas 2-hydroxy naphthaldehyde based chemosensor 2 showed selective disappearance of yellow color for Cu(2+) ions. Interestingly, both 1 and 2 exhibited a highly selective strong turn-on fluorescence for Zn(2+). The significance of COOH group in 1 and 2 for Zn(2+) turn-on fluorescence sensing has been confirmed by structure-property studies. Concentration dependent studies of 1 and 2 indicate that Fe(3+), Cu(2+) and Zn(2+) can be detected up to 10 μM. The formation of 1:1 Zn(2+) and chemosensor (1 and 2) confirmed by NMR studies. High selectivity of 1 and 2 was demonstrated by interference studies in presence of different metal ions.
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Affiliation(s)
- Anu Kundu
- School of Chemical & Biotechnology, SASTRA University, Thanjavur 613401, Tamil Nadu, India
| | - P S Hariharan
- School of Chemical & Biotechnology, SASTRA University, Thanjavur 613401, Tamil Nadu, India
| | - K Prabakaran
- School of Chemical & Biotechnology, SASTRA University, Thanjavur 613401, Tamil Nadu, India
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24
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Ma W, Wang L, Zhang N, Han D, Dong X, Niu L. Biomolecule-free, selective detection of o-diphenol and its derivatives with WS2/TiO2-based photoelectrochemical platform. Anal Chem 2015; 87:4844-50. [PMID: 25844499 DOI: 10.1021/acs.analchem.5b00315] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Herein, a novel photoelectrochemical platform with WS2/TiO2 composites as optoelectronic materials was designed for selective detection of o-diphenol and its derivatives without any biomolecule auxiliary. First, catechol was chosen as a model compound for the discrimination from resorcinol and hydroquinone; then several o-diphenol derivatives such as dopamine, caffeic acid, and catechin were also detected by employing this proposed photoelectrochemical sensor. Finally, the mechanism of such a selective detection has been elaborately explored. The excellent selectivity and high sensitivity should be attributed to two aspects: (i) chelate effect of adjacent double oxygen atoms in the o-diphenol with the Ti(IV) surface site to form a five/six-atom ring structure, which is considered as the key point for distinction and selective detection. (ii) This selected WS2/TiO2 composites with proper band level between WS2 and TiO2, which could make the photogenerated electron and hole easily separated and results in great improvement of sensitivity. By employing such a photoelectrochemical platform, practical samples including commercial clinic drugs and human urine samples have been successfully performed for dopamine detection. This biomolecule-free WS2/TiO2 based photoelectrochemical platform demonstrates excellent stability, reproducibility, remarkably convenient, and cost-effective advantages, as well as low detection limit (e.g., 0.32 μmol L(-1) for dopamine). It holds great promise to be applied for detection of o-diphenol kind species in environment and food fields.
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Affiliation(s)
- Weiguang Ma
- †State Key Laboratory of Electroanalytical Chemistry, c/o Engineering Laboratory for Modern Analytical Techniques, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin China.,‡University of Chinese Academy of Sciences, Beijing 100039, China
| | - Lingnan Wang
- †State Key Laboratory of Electroanalytical Chemistry, c/o Engineering Laboratory for Modern Analytical Techniques, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin China.,‡University of Chinese Academy of Sciences, Beijing 100039, China
| | - Nan Zhang
- †State Key Laboratory of Electroanalytical Chemistry, c/o Engineering Laboratory for Modern Analytical Techniques, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin China.,‡University of Chinese Academy of Sciences, Beijing 100039, China
| | - Dongxue Han
- †State Key Laboratory of Electroanalytical Chemistry, c/o Engineering Laboratory for Modern Analytical Techniques, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin China
| | - Xiandui Dong
- †State Key Laboratory of Electroanalytical Chemistry, c/o Engineering Laboratory for Modern Analytical Techniques, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin China
| | - Li Niu
- †State Key Laboratory of Electroanalytical Chemistry, c/o Engineering Laboratory for Modern Analytical Techniques, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin China
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25
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Li Z, Wan S, Xu W, Wang Y, Shah BR, Jin W, Chen Y, Li B. Highly luminescent film functionalized with CdTe quantum dots by layer-by-layer assembly. J Appl Polym Sci 2015. [DOI: 10.1002/app.41893] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Zhenshun Li
- College of Food Science and Technology; Huazhong Agricultural University; Wuhan 430070 China
- College of Life Science; Yangtze University; Jingzhou 434025 China
- Jingchu Food Research and Development Center; Yangtze University; Jingzhou 434025 China
| | - Shaolong Wan
- College of Food Science and Technology; Huazhong Agricultural University; Wuhan 430070 China
| | - Wei Xu
- College of Food Science and Technology; Huazhong Agricultural University; Wuhan 430070 China
| | - Yuntao Wang
- College of Food Science and Technology; Huazhong Agricultural University; Wuhan 430070 China
| | - Bakht Ramin Shah
- College of Food Science and Technology; Huazhong Agricultural University; Wuhan 430070 China
| | - Weiping Jin
- College of Food Science and Technology; Huazhong Agricultural University; Wuhan 430070 China
| | - Yijie Chen
- College of Food Science and Technology; Huazhong Agricultural University; Wuhan 430070 China
- Key Laboratory of Environment Correlative Dietology; Huazhong Agricultural University; Ministry of Education; Wuhan 430070 China
| | - Bin Li
- College of Food Science and Technology; Huazhong Agricultural University; Wuhan 430070 China
- Key Laboratory of Environment Correlative Dietology; Huazhong Agricultural University; Ministry of Education; Wuhan 430070 China
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26
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Wang Z, Zhang L, Tian Y. A durable non-enzymatic electrochemical sensor for monitoring H2O2 in rat brain microdialysates based on one-step fabrication of hydrogels. Analyst 2015; 140:3788-93. [DOI: 10.1039/c4an02003k] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A non-enzymatic electrochemical H2O2 sensor was developed by in situ fabrication of biocompatible chitosan hydrogels, in which a specific recognition molecule for H2O2 – thionine – was stably immobilized via one-step electrodeposition.
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Affiliation(s)
- Zhen Wang
- Department of Chemistry
- Tongji University
- Shanghai 200092
- China
| | - Limin Zhang
- Department of Chemistry
- East China Normal University
- Shanghai 200062
- China
| | - Yang Tian
- Department of Chemistry
- Tongji University
- Shanghai 200092
- China
- Department of Chemistry
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27
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Noor MO, Krull UJ. Camera-based ratiometric fluorescence transduction of nucleic acid hybridization with reagentless signal amplification on a paper-based platform using immobilized quantum dots as donors. Anal Chem 2014; 86:10331-9. [PMID: 25225960 DOI: 10.1021/ac502677n] [Citation(s) in RCA: 74] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Paper-based diagnostic assays are gaining increasing popularity for their potential application in resource-limited settings and for point-of-care screening. Achievement of high sensitivity with precision and accuracy can be challenging when using paper substrates. Herein, we implement the red-green-blue color palette of a digital camera for quantitative ratiometric transduction of nucleic acid hybridization on a paper-based platform using immobilized quantum dots (QDs) as donors in fluorescence resonance energy transfer (FRET). A nonenzymatic and reagentless means of signal enhancement for QD-FRET assays on paper substrates is based on the use of dry paper substrates for data acquisition. This approach offered at least a 10-fold higher assay sensitivity and at least a 10-fold lower limit of detection (LOD) as compared to hydrated paper substrates. The surface of paper was modified with imidazole groups to assemble a transduction interface that consisted of immobilized QD-probe oligonucleotide conjugates. Green-emitting QDs (gQDs) served as donors with Cy3 as an acceptor. A hybridization event that brought the Cy3 acceptor dye in close proximity to the surface of immobilized gQDs was responsible for a FRET-sensitized emission from the acceptor dye, which served as an analytical signal. A hand-held UV lamp was used as an excitation source and ratiometric analysis using an iPad camera was possible by a relative intensity analysis of the red (Cy3 photoluminescence (PL)) and green (gQD PL) color channels of the digital camera. For digital imaging using an iPad camera, the LOD of the assay in a sandwich format was 450 fmol with a dynamic range spanning 2 orders of magnitude, while an epifluorescence microscope detection platform offered a LOD of 30 fmol and a dynamic range spanning 3 orders of magnitude. The selectivity of the hybridization assay was demonstrated by detection of a single nucleotide polymorphism at a contrast ratio of 60:1. This work provides an important framework for the integration of QD-FRET methods with digital imaging for a ratiometric transduction of nucleic acid hybridization on a paper-based platform.
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Affiliation(s)
- M Omair Noor
- Chemical Sensors Group, Department of Chemical and Physical Sciences, University of Toronto Mississauga , 3359 Mississauga Road, Mississauga, ON, L5L 1C6, Canada
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28
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Khan SA, Smith GT, Seo F, Ellerbee AK. Label-free and non-contact optical biosensing of glucose with quantum dots. Biosens Bioelectron 2014; 64:30-5. [PMID: 25189097 DOI: 10.1016/j.bios.2014.08.035] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2014] [Revised: 07/28/2014] [Accepted: 08/07/2014] [Indexed: 11/29/2022]
Abstract
We present a label-free, optical sensor for biomedical applications based on changes in the visible photoluminescence (PL) of quantum dots in a thin polymer film. Using glucose as the target molecule, the screening of UV excitation due to pre-absorption by the product of an enzymatic assay leads to quenching of the PL of quantum dots (QDs) in a non-contact scheme. The irradiance changes in QD PL indicate quantitatively the level of glucose present. The non-contact nature of the assay prevents surface degradation of the QDs, which yields an efficient, waste-free, cost-effective, portable, and sustainable biosensor with attractive market features. The limit of detection of the demonstrated biosensor is ~3.5 µm, which is competitive with existing contact-based bioassays. In addition, the biosensor operates over the entire clinically relevant range of glucose concentrations of biological fluids including urine and whole blood. The comparable results achieved across a range of cost-affordable detectors, including a spectrophotometer, portable spectrometer, and iPhone camera, suggest that label-free and visible quantification of glucose with QD films can be applied to low-cost, point-of-care biomedical sensing as well as scientific applications in the laboratory for characterizing glucose or other analytes.
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Affiliation(s)
- Saara A Khan
- E.L. Ginzton Laboratory and Department of Electrical Engineering, Stanford University, Stanford, CA 94305, USA
| | - Gennifer T Smith
- E.L. Ginzton Laboratory and Department of Electrical Engineering, Stanford University, Stanford, CA 94305, USA
| | - Felix Seo
- E.L. Ginzton Laboratory and Department of Electrical Engineering, Stanford University, Stanford, CA 94305, USA; Advanced Center for Laser Science and Spectroscopy, Department of Physics, Hampton University, Hampton, VA 23668, USA
| | - Audrey K Ellerbee
- E.L. Ginzton Laboratory and Department of Electrical Engineering, Stanford University, Stanford, CA 94305, USA
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29
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An Electrochemiluminescence Biosensor for Determination of Pb2+ Based on G-Quadruplex of Aptamer Probe. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2014. [DOI: 10.1016/s1872-2040(14)60750-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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30
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Iyer A, Chandra A, Swaminathan R. Hydrolytic enzymes conjugated to quantum dots mostly retain whole catalytic activity. Biochim Biophys Acta Gen Subj 2014; 1840:2935-43. [PMID: 24937605 DOI: 10.1016/j.bbagen.2014.06.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2014] [Revised: 05/22/2014] [Accepted: 06/09/2014] [Indexed: 10/25/2022]
Abstract
BACKGROUND Tagging a luminescent quantum dot (QD) with a biological like enzyme (Enz) creates value-added entities like quantum dot-enzyme bioconjugates (QDEnzBio) that find utility as sensors to detect glucose or beacons to track enzymes in vivo. For such applications, it is imperative that the enzyme remains catalytically active while the quantum dot is luminescent in the bioconjugate. A critical feature that dictates this is the quantum dot-enzyme linkage chemistry. Previously such linkages have put constraints on polypeptide chain dynamics or hindered substrate diffusion to active site, seriously undermining enzyme catalytic activity. In this work we address this issue using avidin-biotin linkage chemistry together with a flexible spacer to conjugate enzyme to quantum dot. METHODS The catalytic activity of three biotinylated hydrolytic enzymes, namely, hen egg white lysozyme (HEWL), alkaline phosphatase (ALP) and acetylcholinesterase (AChE) was investigated post-conjugation to streptavidin linked quantum dot for multiple substrate concentrations and varying degrees of biotinylation. RESULTS We demonstrate that all enzymes retain full catalytic activity in the quantum dot-enzyme bioconjugates in comparison to biotinylated enzyme alone. However, unlike alkaline phosphatase and acetylcholinesterase, the catalytic activity of hen egg white lysozyme was observed to be increasingly susceptible to ionic strength of medium with rising level of biotinylation. This susceptibility was attributed to arise from depletion of positive charge from lysine amino groups after biotinylation. CONCLUSIONS We reasoned that avidin-biotin linkage in the presence of a flexible seven atom spacer between biotin and enzyme poses no constraints to enzyme structure/dynamics enabling retention of full enzyme activity. GENERAL SIGNIFICANCE Overall our results demonstrate for the first time that streptavidin-biotin chemistry can yield quantum dot enzyme bioconjugates that retain full catalytic activity as native enzyme.
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Affiliation(s)
- Aditya Iyer
- Department of Biotechnology, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Anil Chandra
- Department of Biotechnology, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Rajaram Swaminathan
- Department of Biotechnology, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India.
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31
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Tomazelli Coltro WK, Cheng CM, Carrilho E, de Jesus DP. Recent advances in low-cost microfluidic platforms for diagnostic applications. Electrophoresis 2014; 35:2309-24. [DOI: 10.1002/elps.201400006] [Citation(s) in RCA: 111] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2014] [Revised: 03/14/2014] [Accepted: 03/15/2014] [Indexed: 12/22/2022]
Affiliation(s)
- Wendell Karlos Tomazelli Coltro
- Instituto de Química; Universidade Federal de Goiás; Goiânia-GO Brazil
- Instituto Nacional de Ciência e Tecnologia de Bioanalítica; Campinas-SP Brazil
| | - Chao-Min Cheng
- Institute of Nanoengineering and Microsystems; National Tsing Hua University; Hsinchu Taiwan
| | - Emanuel Carrilho
- Instituto Nacional de Ciência e Tecnologia de Bioanalítica; Campinas-SP Brazil
- Instituto de Química de São Carlos; Universidade de São Paulo; São Carlos-SP Brazil
| | - Dosil Pereira de Jesus
- Instituto Nacional de Ciência e Tecnologia de Bioanalítica; Campinas-SP Brazil
- Institute of Chemistry; University of Campinas; UNICAMP; Campinas-SP Brazil
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32
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Yang H, Wei W, Liu S. Monodispersed silica nanoparticles as carrier for co-immobilization of bi-enzyme and its application for glucose biosensing. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 125:183-188. [PMID: 24548811 DOI: 10.1016/j.saa.2014.01.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2013] [Revised: 12/13/2013] [Accepted: 01/03/2014] [Indexed: 06/03/2023]
Abstract
A novel glucose sensing strategy by using bi-enzyme coated monodispered silica nanoparticles (SiO2) was proposed. The monodispered SiO2 was synthesized according to our previously reported seed-growth methods. Glucose oxidase (GOD) and horseradish peroxidase (HRP) were simultaneously covalent immobilized on the surface of SiO2 nanoparticles through the cross-linker of glutaraldehyde. The immobilized bi-enzyme remained their bioactivities well for the substrate reaction. Thus, the resultant SiO2-GOD/HRP nanocomposites could be used as catalyst for enzymatic substrate reactions in the presence of 3,3',5,5'-tetramethylbenzidine (TMB) as chromogenic reagent and glucose as substrate. The factors of affecting the catalytic activities of enzymes were optimized. Under optimal conditions, the absorbance at 450 nm in UV-visible spectra increased with the glucose concentration, which could be used for glucose detection with a linear range from 0.5 μM to 250 μM and a detection limit of 0.22 μM at a signal-to-noise ratio of 3σ. Considering the potential of making pills using this SiO2-GOD/HRP, the present strategy has good prospect in the clinic science and other fields in future.
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Affiliation(s)
- Hao Yang
- State Key Laboratory of Bioelectronic, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, People's Republic of China
| | - Wei Wei
- State Key Laboratory of Bioelectronic, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, People's Republic of China
| | - Songqin Liu
- State Key Laboratory of Bioelectronic, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, People's Republic of China.
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Hai H, Yang F, Li J. Highly sensitive electrochemiluminescence “turn-on” aptamer sensor for lead(II) ion based on the formation of a G-quadruplex on a graphene and gold nanoparticles modified electrode. Mikrochim Acta 2014. [DOI: 10.1007/s00604-014-1177-x] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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34
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Zhou M, Yang M, Zhou F. Paper based colorimetric biosensing platform utilizing cross-linked siloxane as probe. Biosens Bioelectron 2013; 55:39-43. [PMID: 24361420 DOI: 10.1016/j.bios.2013.11.065] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2013] [Revised: 11/17/2013] [Accepted: 11/25/2013] [Indexed: 10/25/2022]
Abstract
Paper based colorimetric biosensing platform utilizing cross-linked siloxane 3-aminopropyltriethoxysilane (APTMS) as probe was developed for the detection of a broad range of targets including H2O2, glucose and protein biomarker. APTMS was extensively used for the modification of filter papers to develop paper based analytical devices. We discovered when APTMS was cross-linked with glutaraldehyde (GA), the resulting complex (APTMS-GA) displays brick-red color, and a visual color change was observed when the complex reacted with H2O2. By integrating the APTMS-GA complex with filter paper, the modified paper enables quantitative detection of H2O2 through the monitoring of the color intensity change of the paper via software Image J. Then, with the immobilization of glucose oxidase (GOx) onto the modified paper, glucose can be detected through the detection of enzymatically generated H2O2. For protein biomarker prostate specific antigen (PSA) assay, we immobilized capture, not captured anti-PSA antibody (Ab1) onto the paper surface and using GOx modified gold nanorod (GNR) as detection anti-PSA antibody (Ab2) label. The detection of PSA was also achieved via the liberated H2O2 when the GOx label reacted with glucose. The results demonstrated the possibility of this paper based sensor for the detection of different analytes with wide linear range. The low cost and simplicity of this paper based sensor could be developed for "point-of-care" analysis and find wide application in different areas.
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Affiliation(s)
- Miao Zhou
- Key Laboratory of Resources Chemistry of Nonferrous Metals, Ministry of Education, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Minghui Yang
- Key Laboratory of Resources Chemistry of Nonferrous Metals, Ministry of Education, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China.
| | - Feimeng Zhou
- Key Laboratory of Resources Chemistry of Nonferrous Metals, Ministry of Education, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China; Department of Chemistry and Biochemistry, California State University, Los Angeles, Los Angeles, California 90032, USA
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35
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Lesnyak V, Gaponik N, Eychmüller A. Colloidal semiconductor nanocrystals: the aqueous approach. Chem Soc Rev 2013; 42:2905-29. [PMID: 23165911 DOI: 10.1039/c2cs35285k] [Citation(s) in RCA: 224] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
This article summarizes the main achievements and challenges in the field of the aqueous synthesis of semiconductor quantum dots in colloidal solutions. Developments in the last two decades demonstrate the great potential of this approach to synthesize nanocrystalline materials with superior properties such as strong photoluminescence, long time stability and compatibility with biological media, and the variability in assembling and self-assembling into larger structures or on surfaces. Being relatively straightforward, the aqueous approach provides some advantages such as versatility, scalability, environmental friendliness and cost effectiveness, leading in summary to very attractive application perspectives.
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Affiliation(s)
- Vladimir Lesnyak
- Physical Chemistry, TU Dresden, Bergstr. 66b, 01062 Dresden, Germany
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36
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Petryayeva E, Algar WR. Proteolytic Assays on Quantum-Dot-Modified Paper Substrates Using Simple Optical Readout Platforms. Anal Chem 2013; 85:8817-25. [DOI: 10.1021/ac4020066] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Eleonora Petryayeva
- Department
of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British
Columbia V6T 1Z1, Canada
| | - W. Russ Algar
- Department
of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British
Columbia V6T 1Z1, Canada
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37
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Li Y, Ma Z. Facile fabrication of truncated octahedral Au nanoparticles and its application for ultrasensitive surface enhanced Raman scattering immunosensing. NANOTECHNOLOGY 2013; 24:275605. [PMID: 23764655 DOI: 10.1088/0957-4484/24/27/275605] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Monodispersed truncated octahedral (TOH) Au nanoparticles (NPs) with an average edge-length of about 16 nm were synthesized using poly(diallyldimethylammonium chloride) (PDDA) both as a stabilizing and reducing agent via a one-step reaction. Remarkably, no seeds, surfactants or additional reductant were used in this reaction. In addition, the PDDA molecules on the surface of the TOH AuNPs make them convenient for use in layer-by-layer assembly by electrostatic interactions. Importantly, the TOH AuNPs show a significant surface enhanced Raman scattering (SERS) activity, and can be directly used for building SERS-active substrates and tags. Based on these promising properties, an ultrasensitive SERS-based immunosensing platform was developed. Using human immunoglobulin (h-IgG) as a model target analyte, a detection limit of 36.56 fg ml(-1) was reached.
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Affiliation(s)
- Yanxiao Li
- Department of Chemistry, Capital Normal University, Beijing 100048, People's Republic of China
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38
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On-chip multiplexed solid-phase nucleic acid hybridization assay using spatial profiles of immobilized quantum dots and fluorescence resonance energy transfer. Anal Chim Acta 2013; 788:148-57. [DOI: 10.1016/j.aca.2013.06.017] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2013] [Revised: 06/02/2013] [Accepted: 06/14/2013] [Indexed: 11/22/2022]
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39
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Sensing approaches on paper-based devices: a review. Anal Bioanal Chem 2013; 405:7573-95. [DOI: 10.1007/s00216-013-6911-4] [Citation(s) in RCA: 313] [Impact Index Per Article: 28.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2012] [Revised: 02/25/2013] [Accepted: 03/08/2013] [Indexed: 01/24/2023]
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40
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Dong S, Liu F, Lu C. Organo-modified hydrotalcite-quantum dot nanocomposites as a novel chemiluminescence resonance energy transfer probe. Anal Chem 2013; 85:3363-8. [PMID: 23432016 DOI: 10.1021/ac400041t] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
In this work, we fabricate an oriented luminescent quantum dot (QD)-layered double hydroxide (LDH) nanocomposite material by the highly orderly and alternate assembly of trace CdTe QDs in dodecylbenzene sulfonate bilayer bunches on the organo-modified LDH exterior surfaces. Interestingly, the novel QD-LDH nanocomposites can remarkably amplify chemiluminescence (CL) of the luminol-H2O2 system, which is attributed to an inhibition of QD oxidation by H2O2, an increase in the radiative decay rate, and an inhibition in the nonradiative relaxation of QDs. In addition, a novel flow-through column-based CL resonance energy transfer is fabricated using luminol as energy donors and the solid luminescent QD-LDH nanocomposites as energy acceptors for signal amplification. The applicability of this flow-through column is evaluated by determining H2O2 using luminol-H2O2 CL system. The CL intensity exhibits a stable response to H2O2 over a concentration range from 0.5 to 60 μM with a detection limit as low as 0.3 μM. Finally, the proposed method has been successfully applied to detect H2O2 in snow samples, and the results agreed with those obtained by the standard spectrophotometric method. Our findings indicate that the new luminescent QD-LDH nanocomposite material would be used for high throughput screening of complex systems with different sized QDs.
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Affiliation(s)
- Shichao Dong
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
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41
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Wu Y, Xue P, Kang Y, Hui KM. Highly Specific and Ultrasensitive Graphene-Enhanced Electrochemical Detection of Low-Abundance Tumor Cells Using Silica Nanoparticles Coated with Antibody-Conjugated Quantum Dots. Anal Chem 2013; 85:3166-73. [DOI: 10.1021/ac303398b] [Citation(s) in RCA: 96] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Yafeng Wu
- School of Chemical and Biomedical
Engineering, Nanyang Technological University, 70 Nanyang Drive, Singapore 637457, Singapore
| | - Peng Xue
- School of Chemical and Biomedical
Engineering, Nanyang Technological University, 70 Nanyang Drive, Singapore 637457, Singapore
| | - Yuejun Kang
- School of Chemical and Biomedical
Engineering, Nanyang Technological University, 70 Nanyang Drive, Singapore 637457, Singapore
| | - Kam M. Hui
- Division of Cellular and Molecular
Research, National Cancer Centre, 11 Hospital
Drive, Singapore 169610, Singapore
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42
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Liu X, Wang F, Niazov-Elkan A, Guo W, Willner I. Probing biocatalytic transformations with luminescent DNA/silver nanoclusters. NANO LETTERS 2013; 13:309-314. [PMID: 23252650 DOI: 10.1021/nl304283c] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
DNA-stabilized Ag nanoclusters, AgNCs, act as fluorescent labels for probing enzyme activities and their substrates. The effective quenching of AgNCs by H(2)O(2) enables the probing of H(2)O(2)-generating oxidases. This is demonstrated by following the glucose oxidase-stimulated oxidation of glucose through the enzyme-catalyzed formation of H(2)O(2). Similarly, the effective quenching of the AgNCs by quinones enabled the detection of tyrosinase through the biocatalyzed oxidation of tyrosine, dopamine, or tyramine to the respective quinone products. The sensitive probing of biocatalytic processes by the AgNCs was further implemented to follow bienzyme catalytic cascades involving alkaline phosphatase/tyrosinase and acetylcholine esterase/choline oxidase. The characterization of the alkaline phosphatase/tyrosinase cascade enabled the ultrasensitive detection of alkaline phosphatase (5 × 10(-5) units/mL) and the detection of o-phospho-l-tyrosine that is an important intracellular promoter and control growth factor.
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Affiliation(s)
- Xiaoqing Liu
- Institute of Chemistry, Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
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43
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Noor MO, Shahmuradyan A, Krull UJ. Paper-Based Solid-Phase Nucleic Acid Hybridization Assay Using Immobilized Quantum Dots as Donors in Fluorescence Resonance Energy Transfer. Anal Chem 2013; 85:1860-7. [DOI: 10.1021/ac3032383] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- M. Omair Noor
- Chemical
Sensors Group, Department of Chemical and
Physical Sciences, University of Toronto Mississauga, 3359 Mississauga Road North, Mississauga Ontario, L5L 1C6, Canada
| | - Anna Shahmuradyan
- Chemical
Sensors Group, Department of Chemical and
Physical Sciences, University of Toronto Mississauga, 3359 Mississauga Road North, Mississauga Ontario, L5L 1C6, Canada
| | - Ulrich J. Krull
- Chemical
Sensors Group, Department of Chemical and
Physical Sciences, University of Toronto Mississauga, 3359 Mississauga Road North, Mississauga Ontario, L5L 1C6, Canada
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44
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Hai H, Yang F, Li J. Electrochemiluminescence sensor using quantum dots based on a G-quadruplex aptamer for the detection of Pb2+. RSC Adv 2013. [DOI: 10.1039/c3ra41616j] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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45
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Zhai J, Yong D, Li J, Dong S. A novel colorimetric biosensor for monitoring and detecting acute toxicity in water. Analyst 2013. [DOI: 10.1039/c2an36160d] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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46
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Yuan J, Wen D, Gaponik N, Eychmüller A. Enzyme-Encapsulating Quantum Dot Hydrogels and Xerogels as Biosensors: Multifunctional Platforms for Both Biocatalysis and Fluorescent Probing. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201205791] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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47
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Yuan J, Wen D, Gaponik N, Eychmüller A. Enzyme-Encapsulating Quantum Dot Hydrogels and Xerogels as Biosensors: Multifunctional Platforms for Both Biocatalysis and Fluorescent Probing. Angew Chem Int Ed Engl 2012; 52:976-9. [DOI: 10.1002/anie.201205791] [Citation(s) in RCA: 96] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2012] [Revised: 11/06/2012] [Indexed: 12/21/2022]
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