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Zhao Z, Zharnikov M. Exploiting epoxy-rich poly(ethylene glycol) films for highly selective ssDNA sensing via electrochemical impedance spectroscopy. Phys Chem Chem Phys 2023; 25:26538-26548. [PMID: 37752830 DOI: 10.1039/d3cp03851c] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/28/2023]
Abstract
This study introduces an alternative approach to immobilize thiolated single-stranded DNA (ssDNA) for the DNA sensing. In contrast to the standard, monomolecular assembly of such moieties on gold substrate, over the thiolate-gold anchors, we propose to use bioinert, porous polyethylene glycol (PEG) films as a 3D template for ssDNA immobilization. The latter process relies on the reaction between the thiol group of the respectively decorated ssDNA and the epoxy groups in the epoxy-rich PEG matrix. The immobilization process and subsequent hybridization ability of the resulting sensing assembly were monitored using cyclic voltammetry and electrochemical impedance spectroscopy, with the latter tool proving itself as the most suitable transduction technique. Electrochemical data confirmed the successful immobilization of thiol-decorated ssDNA probes into the PEG matrix over the thiol-epoxy linkage as well as high hybridization efficiency, selectivity, and sensitivity of the resulting DNA sensor. Whereas this sensor was equivalent to the direct ssDNA assembly in terms of the efficiency, it exhibited a better selectivity and bioinert properties in view of the bioinert character of the PEG matrix. The above findings place PEG films as a promising platform for highly selective ssDNA sensing, leveraging their flexible chemistry, 3D character, and bioinert properties.
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Affiliation(s)
- Zhiyong Zhao
- Angewandte Physikalische Chemie, Universität Heidelberg, Im Neuenheimer Feld 253, 69120 Heidelberg, Germany.
| | - Michael Zharnikov
- Angewandte Physikalische Chemie, Universität Heidelberg, Im Neuenheimer Feld 253, 69120 Heidelberg, Germany.
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2
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Alam N, Ravikumar CH, Sreeramareddygari M, Somasundrum M, Surareungchai W. Label-free ultra-sensitive colorimetric detection of hepatitis E virus based on oxidase-like activity of MnO 2 nanosheets. Anal Bioanal Chem 2023; 415:703-713. [PMID: 36469053 PMCID: PMC9734815 DOI: 10.1007/s00216-022-04461-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 11/18/2022] [Accepted: 11/22/2022] [Indexed: 12/12/2022]
Abstract
Hepatitis E virus (HEV) is an evolving infectious entity that causes viral hepatitis infections worldwide. Current routine methods of identifying and diagnosing HEV are someway laborious and costly. Based on the biomimicking oxidase-like activity of MnO2 nanosheets, we designed a label-free, highly sensitive colorimetric sensing technique for HEV detection. The prepared MnO2 catalyst displays intrinsic biomimicking oxidase-like catalytic activity and efficiently oxidizes the 3,3',5,5'-tetramethylbenzidine (TMB) substrate from colorless to blue colored oxidized TMB (oxTMB) product which can be measured at 652 nm by UV-visible spectrum. When the HEV-DNA was added, DNA adsorbed easily on MnO2 surface through physical adsorption and electrostatic interaction which hinders the oxidase-like catalytic activity of MnO2. Upon the introduction of target, the HEV target DNA binds with its complementary ssDNA on the surface of MnO2, the hybridized DNA releases from the surface of MnO2, which leads to recovery of oxidase-like catalytic activity of MnO2. This strategy was applied to construct a colorimetric technique for HEV detection. The approach works in the linear range of 1 fM-100 nM DNA concentration with the limit of detection (LOD) of 3.26 fM (S/N = 3) and quantitative limit (LOQ) of 36.08 fM. The TMB-MnO2 platform was highly selective for HEV target DNA detection when compared with potential interferences. Result of serum sample analysis demonstrates that this sensing system can be used for clinical diagnostic applications.
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Affiliation(s)
- Naveed Alam
- School of Bioresources and Technology, King Mongkut’s University of Technology Thonburi, Bangkok, 10150 Thailand
| | - Chandan Hunsur Ravikumar
- Centre for Nano and Material Sciences, Jain University, Jain Global Campus, Jakkasandra Post, Ramangaram Dist, Karnataka 562112 India
| | | | - Mithran Somasundrum
- Biosciences and System Biology Team, Biochemical Engineering and System Biology Research Group, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency at KMUTT (Bangkhuntien Campus), Bangkok, 10150 Thailand
| | - Werasak Surareungchai
- School of Bioresources and Technology, King Mongkut’s University of Technology Thonburi, Bangkok, 10150 Thailand ,Nanoscience & Nanotechnology Graduate Programme, Faculty of Science, King Mongkut’s University of Technology Thonburi, Bangkok, 10140 Thailand ,Analytical Sciences and National Doping Test Institute, Mahidol University, Bangkok, 10400 Thailand
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3
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Fan J, Kang L, Cheng X, Liu D, Zhang S. Biomass-Derived Carbon Dots and Their Sensing Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:4473. [PMID: 36558326 PMCID: PMC9783293 DOI: 10.3390/nano12244473] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Revised: 12/12/2022] [Accepted: 12/16/2022] [Indexed: 06/17/2023]
Abstract
Carbon dots (CDs) can be widely used in the field of sensing because of its good water solubility, low toxicity, high fluorescence stability and excellent biocompatibility. It has become a popular trend to prepare high-value, inexpensive, renewable and environmentally friendly CDs sensors from biomass resources. This article reviewed the research progress of biomass-derived CDs as chemical, physical and biological sensors in recent years and studied their preparation processes and sensing abilities. Furthermore, the prospects and challenges of biomass-CDs sensors were discussed. This article is expected to provide inspirations for the design, preparation and application of biomass-CDs sensors in the future.
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Affiliation(s)
- Jiang Fan
- Department of Chemical Engineering, Textile and Clothing, Shaanxi Polytechnic Institute, Xianyang 712000, China
| | - Lei Kang
- School of Surveying & Testing, Shaanxi Railway Institute, Weinan 714000, China
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China
| | - Xu Cheng
- Department of Chemical Engineering, Textile and Clothing, Shaanxi Polytechnic Institute, Xianyang 712000, China
| | - Di Liu
- Department of Chemical Engineering, Textile and Clothing, Shaanxi Polytechnic Institute, Xianyang 712000, China
| | - Sufeng Zhang
- Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, Shaanxi University of Science and Technology, Xi’an 710021, China
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Gopi PK, Srinithi S, Chen SM, Ravikumar CH. Designing of cerium-doped bismuth vanadate nanorods/functionalized-MWCNT nanocomposite for the high toxicity of 4-cyanophenol herbicide detection in human urine sample. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128371] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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5
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Gopi PK, Ngo DB, Chen SM, Ravikumar CH, Surareungchai W. High-performance electrochemical sensing of hazardous pesticide Paraoxon using BiVO 4 nano dendrites equipped catalytic strips. CHEMOSPHERE 2022; 288:132511. [PMID: 34688713 DOI: 10.1016/j.chemosphere.2021.132511] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 10/01/2021] [Accepted: 10/06/2021] [Indexed: 06/13/2023]
Abstract
Paraoxon is one of the pesticide that can induce toxicity to nervous system of living organisms. In this work, we focused on synthesizing the catalyst Bismuth Vanadate with the properties that can sense the presence of organophosphorus compounds and characterized them with various characterization methods. The structural studies done by XRD, UV spectroscopy and FTIR spectroscopy. Morphological studies were carried by SEM and TEM. Elemental analysis using XPS spectra. The proposed electrocatalyst was successfully applied as the active electrode material modifying the screen printed carbon electrode for electrochemical sensor applications. The results of the studies indicate that bismuth vanadate modified electrode exhibited four electron transfer process for reduction of nitro group and this lead to the superior electrochemical sensing performance for ethyl Paraoxon with a detection limit of 0.03 μM and good sensitivity 0.345 μA μM-1 cm-2 with excellent reproducibility, repeatability, stability and selectivity over common interferents. Furthermore, the practical application was successfully carried using the proposed modified strips to determine Paraoxon presence in the river water sample with satisfactory results. This proposed catalyst can act as a desirable candidate for the rapid electrochemical sensor.
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Affiliation(s)
- Praveen Kumar Gopi
- Electroanalysis and Bioelectrochemistry Lab, Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No.1, Section 3, Chung-Hsiao East Road, Taipei, 106, Taiwan, ROC
| | - Duy Ba Ngo
- School of Bio Resources and Technology, King Mongkut's University of Technology Thonburi (KMUTT), Bangkok, 10150, Thailand
| | - Shen-Ming Chen
- Electroanalysis and Bioelectrochemistry Lab, Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No.1, Section 3, Chung-Hsiao East Road, Taipei, 106, Taiwan, ROC.
| | - Chandan Hunsur Ravikumar
- Centre for Nano and Material Sciences, Jain Global Campus, Jain University, Jakkasandra Post, Ramanagaram Dist, 562112, India; Pilot Plant Development and Training Institute, King Mongkut's University of Technology Thonburi, Bankhuntien-Chaitalay Road, Thakam, Bangkok, 10150, Thailand
| | - Werasak Surareungchai
- School of Bio Resources and Technology, King Mongkut's University of Technology Thonburi (KMUTT), Bangkok, 10150, Thailand; Nanoscience and Nanotechnology Program, KMUTT, Bangkok, 10140, Thailand
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Gopi PK, Srinithi S, Chen SM, Hunsur Ravikumar C. Simple construction of GdBiVO4 assembled on reduced graphene oxide for selective and sensitive electrochemical detection of chloramphenicol in food samples. NEW J CHEM 2022. [DOI: 10.1039/d1nj04457e] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
In the present study, the influence of phase purity and crystallinity on the electrochemical properties of well-designed GdBiVO4@rGO nanocomposite, fabricated by the facile hydrothermal method for the detection of chloramphenicol (CP), is reported.
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Affiliation(s)
- Praveen Kumar Gopi
- Electroanalysis and Bioelectrochemistry Lab, Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan, Republic of China
| | - Subburaj Srinithi
- Electroanalysis and Bioelectrochemistry Lab, Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan, Republic of China
| | - Shen-Ming Chen
- Electroanalysis and Bioelectrochemistry Lab, Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan, Republic of China
| | - Chandan Hunsur Ravikumar
- Centre for Nano and Materials Sciences, Jain global campus, Jain University, Jakkasandra post Ramanagaram dist., India, 52110
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Tao YF, He YJ, Ye JZ, Yang X, Yang YY, Xie GG, Liu LX, Du GB, Zhang H, Zhou B. Cochineal quinone carbon dot synthesis via a keto–enol tautomerism strategy and their intermolecular photo-induced cross-redox interactions with tetracycline. NEW J CHEM 2021. [DOI: 10.1039/d1nj02701h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Specific molecular recognition of tetracycline by carminic acid-formed carbon dots taking advantage of the common quinone molecular structural unit.
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Affiliation(s)
- Yun-Feng Tao
- Key Laboratory of Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Yunnan Province Key Lab of Wood Adhesives and Glued Products, College of Life Science, Southwest Forestry University, Kunming 650224, P. R. China
| | - Yu-Juan He
- Key Laboratory of Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Yunnan Province Key Lab of Wood Adhesives and Glued Products, College of Life Science, Southwest Forestry University, Kunming 650224, P. R. China
| | - Jin-Zhi Ye
- Key Laboratory of Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Yunnan Province Key Lab of Wood Adhesives and Glued Products, College of Life Science, Southwest Forestry University, Kunming 650224, P. R. China
| | - Xiao Yang
- Key Laboratory of Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Yunnan Province Key Lab of Wood Adhesives and Glued Products, College of Life Science, Southwest Forestry University, Kunming 650224, P. R. China
| | - Ying-Ying Yang
- Key Laboratory of Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Yunnan Province Key Lab of Wood Adhesives and Glued Products, College of Life Science, Southwest Forestry University, Kunming 650224, P. R. China
| | - Ge-Ge Xie
- Key Laboratory of Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Yunnan Province Key Lab of Wood Adhesives and Glued Products, College of Life Science, Southwest Forestry University, Kunming 650224, P. R. China
| | - Lan-Xiang Liu
- Research Institute of Resource Insects, Chinese Academy of Forestry, Kunming 650224, P. R. China
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
| | - Guan-Ben Du
- Key Laboratory of Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Yunnan Province Key Lab of Wood Adhesives and Glued Products, College of Life Science, Southwest Forestry University, Kunming 650224, P. R. China
| | - Hong Zhang
- Research Institute of Resource Insects, Chinese Academy of Forestry, Kunming 650224, P. R. China
| | - Bei Zhou
- Key Laboratory of Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Yunnan Province Key Lab of Wood Adhesives and Glued Products, College of Life Science, Southwest Forestry University, Kunming 650224, P. R. China
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
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