1
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Wang D, Li L, Ji W, Wei H, Yu P, Mao L. Online ascorbate sensing reveals oxidative injury occurrence in inferior colliculus in salicylate-induced tinnitus animal model. Talanta 2023; 258:124404. [PMID: 36889190 DOI: 10.1016/j.talanta.2023.124404] [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: 01/19/2023] [Revised: 02/19/2023] [Accepted: 02/20/2023] [Indexed: 03/06/2023]
Abstract
Tinnitus is a widespread and serious clinical and social problem. Although oxidative injury has been suggested to be one of pathological mechanisms in auditory cortex, whether this mechanism could be applied to inferior colliculus remains unclear. In this study, we used an online electrochemical system (OECS) integrating in vivo microdialysis with selective electrochemical detector to continuously monitor the dynamics of ascorbate efflux, an index of oxidative injury, in inferior colliculus of living rats during sodium salicylate-induced tinnitus. We found that OECS with a carbon nanotubes (CNTs)-modified electrode as the detector selectively responses to ascorbate, which is free from the interference from sodium salicylate and MK-801 that were used to induce tinnitus animal model and investigate the N-methyl-d-aspartate (NMDA) receptor mediated excitotoxicity, respectively. With the OECS, we found that the extracellular ascorbate level in inferior colliculus significantly increases after salicylate administration and such increase was suppressed by immediate injection of NMDA receptor antagonist MK-801. In addition, we found that salicylate administration significantly increases the spontaneous and sound stimuli evoked neural activity in inferior colliculus and that the increases were inhibited by the injection of MK-801. These results suggest that oxidative injury may occur in inferior colliculus following salicylate-induced tinnitus, which is closely relevant to the NMDA-mediated neuronal excitotoxicity. This information is useful for understanding the neurochemical processes in inferior colliculus involved in tinnitus and its related brain diseases.
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Affiliation(s)
- Dalei Wang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, The Chinese Academy of Sciences, Beijing, 100190, China
| | - Lijuan Li
- Department of Otolaryngology, Peking University Third Hospital, Beijing, 100191, China
| | - Wenliang Ji
- College of Chemistry, Beijing Normal University, Xinjiekouwai Street 19, Beijing, 100875, China
| | - Huan Wei
- College of Chemistry, Beijing Normal University, Xinjiekouwai Street 19, Beijing, 100875, China
| | - Ping Yu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, The Chinese Academy of Sciences, Beijing, 100190, China
| | - Lanqun Mao
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, The Chinese Academy of Sciences, Beijing, 100190, China; College of Chemistry, Beijing Normal University, Xinjiekouwai Street 19, Beijing, 100875, China.
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2
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Kim J, Kim BK, Park K. Electrodeposition of Silver Nanoparticles on Indium-Doped Tin Oxide Using Hydrogel Electrolyte for Hydrogen Peroxide Sensing. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 13:nano13010048. [PMID: 36615957 PMCID: PMC9824541 DOI: 10.3390/nano13010048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 12/13/2022] [Accepted: 12/20/2022] [Indexed: 05/14/2023]
Abstract
Nanoparticles are used in various fields, including fuel cells, energy conversion devices, and sensors, because of their large surface area and excellent catalytic properties. Although various methods of synthesizing nanoparticles are available, the most popular is the solution-phase reduction of metal ions. Electrodeposition is a method of reducing metal ions in solution and is widely used because of its various advantages. In this study, Ag nanoparticles with a narrow size distribution were evenly dispersed on the surface of an electrode by applying electrodeposition in an agarose hydrogel medium instead of in solution, confirming the feasibility of Ag deposition in agarose hydrogel, even at a lower reduction potential than that in solution. These results are attributed to the electrolyte effect owing to the hydrophilic backbone of the agarose hydrogel and the gel effect, which reduces unexpected convection. H2O2 was detected by using the Ag nanoparticles synthesized in agarose hydrogel, and the limit of detection for H2O2 was found to be 4.82 µM, with a dynamic range of 1-500 µM. The nanoparticle synthesis platform proposed in this study is expected to be actively used for the synthesis of other metal/nonmetal nanoparticles.
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Affiliation(s)
- Jihyeon Kim
- Department of Chemistry and Cosmetics, Jeju National University, Jeju 690-756, Republic of Korea
| | - Byung-Kwon Kim
- Department of Chemistry and Nanoscience, Ewha Womans University, Seoul 03760, Republic of Korea
- Correspondence: (B.-K.K.); (K.P.); Tel.: +82-2-3277-6578 (B.-K.K.); +82-64-754-3545 (K.P.); Fax: +82-2-3277-2385 (B.-K.K.); +82-64-756-3561 (K.P.)
| | - Kyungsoon Park
- Department of Chemistry and Cosmetics, Jeju National University, Jeju 690-756, Republic of Korea
- Correspondence: (B.-K.K.); (K.P.); Tel.: +82-2-3277-6578 (B.-K.K.); +82-64-754-3545 (K.P.); Fax: +82-2-3277-2385 (B.-K.K.); +82-64-756-3561 (K.P.)
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3
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Saengsrichan A, Khemthong P, Wanmolee W, Youngjan S, Phanthasri J, Arjfuk P, Pongchaikul P, Ratchahat S, Posoknistakul P, Laosiripojana N, Wu KCW, Sakdaronnarong C. Platinum/carbon dots nanocomposites from palm bunch hydrothermal synthesis as highly efficient peroxidase mimics for ultra-low H2O2 sensing platform through dual mode of colorimetric and fluorescent detection. Anal Chim Acta 2022; 1230:340368. [DOI: 10.1016/j.aca.2022.340368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 08/19/2022] [Accepted: 09/05/2022] [Indexed: 11/01/2022]
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4
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Luo Y, Lin R, Zuo Y, Zhang Z, Zhuo Y, Lu M, Chen S, Gu H. Efficient Electrochemical Microsensor for In Vivo Monitoring of H 2O 2 in PD Mouse Brain: Rational Design and Synthesis of Recognition Molecules. Anal Chem 2022; 94:9130-9139. [PMID: 35694821 DOI: 10.1021/acs.analchem.2c01570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Hydrogen peroxide (H2O2), one of the most stable and abundant reactive oxygen species (ROS), acting as a modulator of dopaminergic signaling, has been intimately implicated in Parkinson's disease, creating a critical need for the selective quantification of H2O2 in the living brain. Current natural or nanomimic enzyme-based electrochemical methods employed for the determination of H2O2 suffer from inadequate selectivity and stability, due to which the in vivo measurement of H2O2 in the living brain remains a challenge. Herein, a series of 5-(1,2-dithiolan-3-yl)-N-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)pentanamide (DBP) derivatives were designed by tuning the substitute groups and sites of a boric acid ester, which served as probes to specifically react with H2O2. Consequently, the reaction products, 5-(1,2-dithiolan-3-yl)-N-(4-hydroxyphen-yl)pentanamide (DHP) derivatives, converted the electrochemical signal from inactive into active. After systematically evaluating their performances, 5-(1,2-dithiolan-3-yl)-N-(3-chloro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)pentanamide (o-Cl-DBP) was finally identified as the optimized probe for H2O2 detection as it revealed the fastest reaction time, the largest current density, and the most negative potential. In addition, electrochemically oxidized graphene oxide (EOGO) was utilized to produce a stable inner reference. The designed electrochemical microsensor provided a ratiometric strategy for real-time tracking of H2O2 in a linear range of 0.5-600 μM with high selectivity and accuracy. Eventually, the efficient electrochemical microsensor was successfully applied to the measurement of H2O2 in Parkinson's disease (PD) mouse brain. The average levels of H2O2 in the cortex, striatum, and hippocampus in the normal mouse and PD mouse were systematically compared for the first time.
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Affiliation(s)
- Yu Luo
- A Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, P. R. China
| | - Ruizhi Lin
- A Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, P. R. China
| | - Yimei Zuo
- A Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, P. R. China
| | - Ziyi Zhang
- A Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, P. R. China
| | - Yi Zhuo
- The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, Hunan Provincial Key Laboratory of Neurorestoratology, College of Life Sciences, Hunan Normal University, Changsha, Hunan 410006, P. R. China
| | - Ming Lu
- The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, Hunan Provincial Key Laboratory of Neurorestoratology, College of Life Sciences, Hunan Normal University, Changsha, Hunan 410006, P. R. China
| | - Shu Chen
- A Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, P. R. China
| | - Hui Gu
- A Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, P. R. China
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5
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NiPd mediated by conductive metal organic frameworks with facilitated electron transfer for assaying of H2O2 released from living cells. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2021.115985] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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6
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Hang DR, Pan YQ, Sharma KH, Chou MMC, Islam SE, Wu HF, Liang CT. 2D CTAB-MoSe 2 Nanosheets and 0D MoSe 2 Quantum Dots: Facile Top-Down Preparations and Their Peroxidase-Like Catalytic Activity for Colorimetric Detection of Hydrogen Peroxide. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E2045. [PMID: 33081190 PMCID: PMC7602750 DOI: 10.3390/nano10102045] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 10/11/2020] [Accepted: 10/13/2020] [Indexed: 02/02/2023]
Abstract
We report the facile and economic preparation of two-dimensional (2D) and 0D MoSe2 nanostructures based on systematic and non-toxic top-down strategies. We demonstrate the intrinsic peroxidase-like activity of these MoSe2 nanostructures. The catalytic processes begin with facilitated decomposition of H2O2 by using MoSe2 nanostructures as peroxidase mimetics. In turn, a large amount of generated radicals oxidizes 3,3,5,5-tetramethylbenzidine (TMB) to produce a visible color reaction. The enzymatic kinetics of our MoSe2 nanostructures complies with typical Michaelis-Menten theory. Catalytic kinetics study reveals a ping-pong mechanism. Moreover, the primary radical responsible for the oxidation of TMB was identified to be Ȯ2- by active species-trapping experiments. Based on the peroxidase mimicking property, we developed a new colorimetric method for H2O2 detection by using 2D and 0D MoSe2 nanostructures. It is shown that the colorimetric sensing capability of our MoSe2 catalysts is comparable to other 2D materials-based colorimetric platforms. For instance, the linear range of H2O2 detection is between 10 and 250 μM by using 2D functionalized MoSe2 nanosheets as an artificial enzyme. Our work develops a systematic approach to use 2D materials to construct novel enzyme-free mimetic for a visual assay of H2O2, which has promising prospects in medical diagnosis and food security monitoring.
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Affiliation(s)
- Da-Ren Hang
- Department of Materials and Optoelectronic Science, National Sun Yat-sen University, Kaohsiung 80424, Taiwan; (Y.-Q.P.); (K.H.S.); (M.M.C.C.)
- Center of Crystal Research, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
| | - Ya-Qi Pan
- Department of Materials and Optoelectronic Science, National Sun Yat-sen University, Kaohsiung 80424, Taiwan; (Y.-Q.P.); (K.H.S.); (M.M.C.C.)
| | - Krishna Hari Sharma
- Department of Materials and Optoelectronic Science, National Sun Yat-sen University, Kaohsiung 80424, Taiwan; (Y.-Q.P.); (K.H.S.); (M.M.C.C.)
| | - Mitch M. C. Chou
- Department of Materials and Optoelectronic Science, National Sun Yat-sen University, Kaohsiung 80424, Taiwan; (Y.-Q.P.); (K.H.S.); (M.M.C.C.)
- Center of Crystal Research, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
| | - Sk Emdadul Islam
- Department of Physics, National Taiwan University, Taipei 10617, Taiwan;
| | - Hui-Fen Wu
- Department of Chemistry, National Sun Yat-sen University, Kaohsiung 80424, Taiwan;
| | - Chi-Te Liang
- Department of Physics, National Taiwan University, Taipei 10617, Taiwan;
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7
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Lenarda A, Bakandritsos A, Bevilacqua M, Tavagnacco C, Melchionna M, Naldoni A, Steklý T, Otyepka M, Zbořil R, Fornasiero P. Selective Functionalization Blended with Scaffold Conductivity in Graphene Acid Promotes H 2O 2 Electrochemical Sensing. ACS OMEGA 2019; 4:19944-19952. [PMID: 31788627 PMCID: PMC6882107 DOI: 10.1021/acsomega.9b02881] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Accepted: 11/04/2019] [Indexed: 06/10/2023]
Abstract
The widespread industrial use of H2O2 has provoked great interest in the development of new and more efficient materials for its detection. Enzymatic electrochemical sensors have drawn particular attention, primarily because of their excellent selectivity. However, their high cost, instability, complex immobilization, and inherent tendency toward denaturation of the enzyme significantly limit their practical usefulness. Inspired by the powerful proton-catalyzed H2O2 reduction mechanism of peroxidases, we have developed a well-defined and densely functionalized carboxylic graphene derivative (graphene acid, GA) that serves as a proton source and conductive electrode for binding and detecting H2O2. An unprecedented H2O2 sensitivity of 525 μA cm-2 mM-1 is achieved by optimizing the balance between the carboxyl group content and scaffold conductivity of GA. Importantly, the GA sensor greatly outperforms all reported carbon-based H2O2 sensors and is superior to enzymatic ones because of its simple immobilization, low cost, and uncompromised sensitivity even after continuous operation for 7 days. In addition, GA-based sensing electrodes remain highly selective in the presence of interferents such as ascorbic acid, paracetamol, and glucose, as well as complex matrices such as milk. GA-based sensors thus have considerable potential for use in practical industrial sensing technologies.
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Affiliation(s)
- Anna Lenarda
- Department
of Chemical and Pharmaceutical Sciences, INSTM and ICCOM-CNR, University of Trieste, Via L. Giorgieri 1, 34127 Trieste, Italy
| | - Aristides Bakandritsos
- Regional
Centre of Advanced Technologies and Materials and Department of Physical
Chemistry, Faculty of Science, Palacký
University Olomouc, Šlechtitelů 27, 783 71 Olomouc, Czech Republic
| | - Manuela Bevilacqua
- Department
of Chemical and Pharmaceutical Sciences, INSTM and ICCOM-CNR, University of Trieste, Via L. Giorgieri 1, 34127 Trieste, Italy
| | - Claudio Tavagnacco
- Department
of Chemical and Pharmaceutical Sciences, INSTM and ICCOM-CNR, University of Trieste, Via L. Giorgieri 1, 34127 Trieste, Italy
| | - Michele Melchionna
- Department
of Chemical and Pharmaceutical Sciences, INSTM and ICCOM-CNR, University of Trieste, Via L. Giorgieri 1, 34127 Trieste, Italy
| | - Alberto Naldoni
- Regional
Centre of Advanced Technologies and Materials and Department of Physical
Chemistry, Faculty of Science, Palacký
University Olomouc, Šlechtitelů 27, 783 71 Olomouc, Czech Republic
| | - Tomáš Steklý
- Regional
Centre of Advanced Technologies and Materials and Department of Physical
Chemistry, Faculty of Science, Palacký
University Olomouc, Šlechtitelů 27, 783 71 Olomouc, Czech Republic
| | - Michal Otyepka
- Regional
Centre of Advanced Technologies and Materials and Department of Physical
Chemistry, Faculty of Science, Palacký
University Olomouc, Šlechtitelů 27, 783 71 Olomouc, Czech Republic
| | - Radek Zbořil
- Regional
Centre of Advanced Technologies and Materials and Department of Physical
Chemistry, Faculty of Science, Palacký
University Olomouc, Šlechtitelů 27, 783 71 Olomouc, Czech Republic
| | - Paolo Fornasiero
- Department
of Chemical and Pharmaceutical Sciences, INSTM and ICCOM-CNR, University of Trieste, Via L. Giorgieri 1, 34127 Trieste, Italy
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8
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Hang DR, Sun DY, Chen CH, Wu HF, Chou MMC, Islam SE, Sharma KH. Facile Bottom-up Preparation of WS 2-Based Water-Soluble Quantum Dots as Luminescent Probes for Hydrogen Peroxide and Glucose. NANOSCALE RESEARCH LETTERS 2019; 14:271. [PMID: 31399837 PMCID: PMC6689045 DOI: 10.1186/s11671-019-3109-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Accepted: 07/29/2019] [Indexed: 06/10/2023]
Abstract
Photoluminescent zero-dimensional (0D) quantum dots (QDs) derived from transition metal dichalcogenides, particularly molybdenum disulfide, are presently in the spotlight for their advantageous characteristics for optoelectronics, imaging, and sensors. Nevertheless, up to now, little work has been done to synthesize and explore photoluminescent 0D WS2 QDs, especially by a bottom-up strategy without using usual toxic organic solvents. In this work, we report a facile bottom-up strategy to synthesize high-quality water-soluble tungsten disulfide (WS2) QDs through hydrothermal reaction by using sodium tungstate dihydrate and L-cysteine as W and S sources. Besides, hybrid carbon quantum dots/WS2 QDs were further prepared based on this method. Physicochemical and structural analysis of QD hybrid indicated that the graphitic carbon quantum dots with diameters about 5 nm were held onto WS2 QDs via electrostatic attraction forces. The resultant QDs show good water solubility and stable photoluminescence (PL). The excitation-dependent PL can be attributed to the polydispersity of the synthesized QDs. We found that the PL was stable under continuous irradiation of UV light but can be quenched in the presence of hydrogen peroxide (H2O2). The obtained WS2-based QDs were thus adopted as an electrodeless luminescent probe for H2O2 and for enzymatic sensing of glucose. The hybrid QDs were shown to have a more sensitive LOD in the case of glucose sensing. The Raman study implied that H2O2 causes the partial oxidation of QDs, which may lead to oxidation-induced quenching. Overall, the presented strategy provides a general guideline for facile and low-cost synthesis of other water-soluble layered material QDs and relevant hybrids in large quantity. These WS2-based high-quality water-soluble QDs should be promising for a wide range of applications in optoelectronics, environmental monitoring, medical imaging, and photocatalysis.
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Affiliation(s)
- Da-Ren Hang
- Department of Materials and Optoelectronic Science, National Sun Yat-sen University, Kaohsiung, 80424 Taiwan
- Center of Crystal Research, National Sun Yat-sen University, Kaohsiung, 80424 Taiwan
| | - De-You Sun
- Department of Materials and Optoelectronic Science, National Sun Yat-sen University, Kaohsiung, 80424 Taiwan
| | - Chun-Hu Chen
- Department of Chemistry, National Sun Yat-sen University, Kaohsiung, 80424 Taiwan
| | - Hui-Fen Wu
- Department of Chemistry, National Sun Yat-sen University, Kaohsiung, 80424 Taiwan
| | - Mitch M. C. Chou
- Department of Materials and Optoelectronic Science, National Sun Yat-sen University, Kaohsiung, 80424 Taiwan
- Center of Crystal Research, National Sun Yat-sen University, Kaohsiung, 80424 Taiwan
| | - Sk Emdadul Islam
- Department of Materials and Optoelectronic Science, National Sun Yat-sen University, Kaohsiung, 80424 Taiwan
| | - Krishna Hari Sharma
- Department of Materials and Optoelectronic Science, National Sun Yat-sen University, Kaohsiung, 80424 Taiwan
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9
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Shi J, Tong L, Tong W, Chen H, Lan M, Sun X, Zhu Y. Current progress in long-term and continuous cell metabolite detection using microfluidics. Trends Analyt Chem 2019. [DOI: 10.1016/j.trac.2019.05.028] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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10
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Jiang C, Zhang Y, Shen H, Liu C. Target-Regulated Ce3+
/Ce4+
Redox Switch for Fluorescence Turn-on Detection of H2
O2
and Glucose. ChemistrySelect 2017. [DOI: 10.1002/slct.201701751] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Chao Jiang
- School of Chemistry and Chemical Engineering; Shaanxi Normal University; Xi'an 710062, Shaanxi Province, P. R. China
| | - Yu Zhang
- School of Chemistry and Chemical Engineering; Shaanxi Normal University; Xi'an 710062, Shaanxi Province, P. R. China
| | - Haixia Shen
- Basic Experimental Teaching Centre; Shaanxi Normal University; Xi'an 710062, Shaanxi Province, P. R. China
| | - Chenghui Liu
- School of Chemistry and Chemical Engineering; Shaanxi Normal University; Xi'an 710062, Shaanxi Province, P. R. China
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11
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Wang J, Zhou M, Dong R, Cong X, Zhang R, Wang X. Simultaneous Determination of Peroxide Hydrogen and Ascorbic Acid by Capillary Electrophoresis with Platinum Nanoparticles Modified Micro-disk Electrode. ELECTROANAL 2017. [DOI: 10.1002/elan.201600407] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- J. Wang
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Institute of Molecular and Nano Science; Shandong Normal University; Jinan 250014 P. R. China
| | - M. Zhou
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Institute of Molecular and Nano Science; Shandong Normal University; Jinan 250014 P. R. China
| | - R. Dong
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Institute of Molecular and Nano Science; Shandong Normal University; Jinan 250014 P. R. China
| | - X. Cong
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Institute of Molecular and Nano Science; Shandong Normal University; Jinan 250014 P. R. China
| | - R. Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Institute of Molecular and Nano Science; Shandong Normal University; Jinan 250014 P. R. China
| | - X. Wang
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Institute of Molecular and Nano Science; Shandong Normal University; Jinan 250014 P. R. China
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12
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Zaraska L, Gawlak K, Kurowska-Tabor E, Jaskuła M, Sulka GD. Template-assisted synthesis of rough Ag nanorods and their application for amperometric sensing of H 2 O 2. CR CHIM 2017. [DOI: 10.1016/j.crci.2017.03.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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13
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Dual-channel probe of carbon dots cooperating with gold nanoclusters employed for assaying multiple targets. Biosens Bioelectron 2017; 91:566-573. [DOI: 10.1016/j.bios.2017.01.014] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2016] [Revised: 01/05/2017] [Accepted: 01/06/2017] [Indexed: 11/22/2022]
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14
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Wang S, Liu X, Zhang M. Reduction of Ammineruthenium(III) by Sulfide Enables In Vivo Electrochemical Monitoring of Free Endogenous Hydrogen Sulfide. Anal Chem 2017; 89:5382-5388. [DOI: 10.1021/acs.analchem.7b00069] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Shujun Wang
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Xiaomeng Liu
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Meining Zhang
- Department of Chemistry, Renmin University of China, Beijing 100872, China
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15
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Xiao T, Wu F, Hao J, Zhang M, Yu P, Mao L. In Vivo Analysis with Electrochemical Sensors and Biosensors. Anal Chem 2016; 89:300-313. [DOI: 10.1021/acs.analchem.6b04308] [Citation(s) in RCA: 138] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Tongfang Xiao
- Beijing
National Laboratory for Molecular Sciences, CAS Key Laboratory of
Analytical Chemistry for Living Biosystems and Photochemistry, Institute
of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Fei Wu
- Beijing
National Laboratory for Molecular Sciences, CAS Key Laboratory of
Analytical Chemistry for Living Biosystems and Photochemistry, Institute
of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jie Hao
- Beijing
National Laboratory for Molecular Sciences, CAS Key Laboratory of
Analytical Chemistry for Living Biosystems and Photochemistry, Institute
of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Meining Zhang
- Beijing
National Laboratory for Molecular Sciences, CAS Key Laboratory of
Analytical Chemistry for Living Biosystems and Photochemistry, Institute
of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ping Yu
- Beijing
National Laboratory for Molecular Sciences, CAS Key Laboratory of
Analytical Chemistry for Living Biosystems and Photochemistry, Institute
of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lanqun Mao
- Beijing
National Laboratory for Molecular Sciences, CAS Key Laboratory of
Analytical Chemistry for Living Biosystems and Photochemistry, Institute
of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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16
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Meesaragandla B, Verma A, Bheemireddy V, Mahalingam V. Selective Detection of H2O2Usingpara-Phenylenediamine Capped Ce3+/Tb3+-Doped NaYF4Microrods. ChemistrySelect 2016. [DOI: 10.1002/slct.201601079] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Brahmaiah Meesaragandla
- Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER); Kolkata, Mohanpur, West Bengal 741246 India
| | - Akash Verma
- Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER); Kolkata, Mohanpur, West Bengal 741246 India
| | - Varun Bheemireddy
- Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER); Kolkata, Mohanpur, West Bengal 741246 India
| | - Venkataramanan Mahalingam
- Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER); Kolkata, Mohanpur, West Bengal 741246 India
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17
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Li R, Liu X, Qiu W, Zhang M. In Vivo Monitoring of H2O2 with Polydopamine and Prussian Blue-coated Microelectrode. Anal Chem 2016; 88:7769-76. [DOI: 10.1021/acs.analchem.6b01765] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Ruixin Li
- Department
of Chemistry, Renmin University of China, Beijing 100872, China
| | - Xiaomeng Liu
- Department
of Chemistry, Renmin University of China, Beijing 100872, China
| | - Wanling Qiu
- Department
of Chemistry, Renmin University of China, Beijing 100872, China
| | - Meining Zhang
- Department
of Chemistry, Renmin University of China, Beijing 100872, China
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18
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Miao H, Zhong D, Zhou Z, Yang X. Papain-templated Cu nanoclusters: assaying and exhibiting dramatic antibacterial activity cooperating with H₂O₂. NANOSCALE 2015; 7:19066-72. [PMID: 26514845 DOI: 10.1039/c5nr05362e] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Herein, papain-functionalized Cu nanoclusters (CuNCs@Papain) were originally synthesized in aqueous solution together with a quantum yield of 14.3%, and showed obviously red fluorescence at 620 nm. Meanwhile, their corresponding fluorescence mechanism was fully elucidated by fluorescence spectroscopy, HR-TEM, FTIR spectroscopy, and XPS. Subsequently, the as-prepared CuNCs were employed as probes for detecting H2O2. Using CuNCs as probes, H2O2 was determined in the range from 1 μM to 50 μM based on a linear decrease of fluorescence intensity as well as a detection limit of 0.2 μM with a signal-to-noise ratio of 3. More significantly, it has been proved that CuNCs could convert H2O2 to ˙OH, which exhibited dramatic antibacterial activity. Both in vitro and in vivo experiments were performed to validate their antibacterial activity against Gram-positive/negative bacteria and actual wound infection, suggesting their potential for serving as one type of promising antibacterial material.
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Affiliation(s)
- Hong Miao
- College of Pharmaceutical Sciences, Key Laboratory of Luminescence and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, Southwest University, Chongqing 400715, China.
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19
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Highly sensitive H2O2 sensor based on Co3O4 hollow sphere prepared via a template-free method. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.08.116] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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20
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Li Z, Xin Y, Zhang Z. New Photocathodic Analysis Platform with Quasi-Core/Shell-Structured TiO2@Cu2O for Sensitive Detection of H2O2 Release from Living Cells. Anal Chem 2015; 87:10491-7. [DOI: 10.1021/acs.analchem.5b02644] [Citation(s) in RCA: 94] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Zhenzhen Li
- School of Chemistry and Molecular
Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Yanmei Xin
- School of Chemistry and Molecular
Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Zhonghai Zhang
- School of Chemistry and Molecular
Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
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21
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Roushani M, Dizajdizi BZ. Development of nonenzymatic hydrogen peroxide sensor based on catalytic properties of copper nanoparticles/Rutin/MWCNTs/IL/Chit. CATAL COMMUN 2015. [DOI: 10.1016/j.catcom.2015.06.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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22
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Kurowska-Tabor E, Jaskuła M, Sulka GD. Sensitive Amperometric Sensing of Hydrogen Peroxide Using Ag Nanowire Array Electrode. ELECTROANAL 2015. [DOI: 10.1002/elan.201400741] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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23
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Li R, Guo D, Ye J, Zhang M. Stabilization of Prussian blue with polyaniline and carbon nanotubes in neutral media for in vivo determination of glucose in rat brains. Analyst 2015; 140:3746-52. [DOI: 10.1039/c4an02352h] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
This study demonstrates a new electrochemical microbiosensor for selectivein vivomonitoring of glucose in rat brains.
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Affiliation(s)
- Ruixin Li
- Department of Chemistry
- Renmin University of China
- Beijing 100872
- China
| | - Deyin Guo
- College of Chemistry and Chemical Engineering
- South China University of Technology
- Wushan
- China
| | - Jianshan Ye
- College of Chemistry and Chemical Engineering
- South China University of Technology
- Wushan
- China
| | - Meining Zhang
- Department of Chemistry
- Renmin University of China
- Beijing 100872
- China
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24
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Lin Y, Yu P, Mao L. A multi-enzyme microreactor-based online electrochemical system for selective and continuous monitoring of acetylcholine. Analyst 2015; 140:3781-7. [DOI: 10.1039/c4an02089h] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This study demonstrates an online electrochemical system (OECS) for selective and continuous measurements of acetylcholine (ACh) through efficiently integrating in vivo microdialysis, a multi-enzyme microreactor and an electrochemical detector.
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Affiliation(s)
- Yuqing Lin
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Analytical Chemistry for Living Biosystems
- Institute of Chemistry
- The Chinese Academy of Sciences (CAS)
- Beijing 100190
| | - Ping Yu
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Analytical Chemistry for Living Biosystems
- Institute of Chemistry
- The Chinese Academy of Sciences (CAS)
- Beijing 100190
| | - Lanqun Mao
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Analytical Chemistry for Living Biosystems
- Institute of Chemistry
- The Chinese Academy of Sciences (CAS)
- Beijing 100190
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25
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Lan M, Di Y, Zhu X, Ng TW, Xia J, Liu W, Meng X, Wang P, Lee CS, Zhang W. A carbon dot-based fluorescence turn-on sensor for hydrogen peroxide with a photo-induced electron transfer mechanism. Chem Commun (Camb) 2015; 51:15574-7. [DOI: 10.1039/c5cc05835j] [Citation(s) in RCA: 82] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A carbon dot-based fluorescence turn-on sensor for hydrogen peroxide with a photo-induced electron transfer mechanism was developed.
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Affiliation(s)
- Minhuan Lan
- Center of Super-Diamond and Advanced Films (COSDAF) and Department of Physics and Materials Science
- City University of Hong Kong
- Hong Kong SAR
- P. R. China
| | - Yanfei Di
- Center of Super-Diamond and Advanced Films (COSDAF) and Department of Physics and Materials Science
- City University of Hong Kong
- Hong Kong SAR
- P. R. China
| | - Xiaoyue Zhu
- Center of Super-Diamond and Advanced Films (COSDAF) and Department of Physics and Materials Science
- City University of Hong Kong
- Hong Kong SAR
- P. R. China
| | - Tsz-Wai Ng
- Center of Super-Diamond and Advanced Films (COSDAF) and Department of Physics and Materials Science
- City University of Hong Kong
- Hong Kong SAR
- P. R. China
| | - Jing Xia
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing
- People's Republic of China
| | - Weimin Liu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing
- People's Republic of China
| | - Xiangmin Meng
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing
- People's Republic of China
| | - Pengfei Wang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing
- People's Republic of China
| | - Chun-Sing Lee
- Center of Super-Diamond and Advanced Films (COSDAF) and Department of Physics and Materials Science
- City University of Hong Kong
- Hong Kong SAR
- P. R. China
| | - Wenjun Zhang
- Center of Super-Diamond and Advanced Films (COSDAF) and Department of Physics and Materials Science
- City University of Hong Kong
- Hong Kong SAR
- P. R. 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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Zhang Z, Hao J, Xiao T, Yu P, Mao L. Online electrochemical systems for continuous neurochemical measurements with low-potential mediator-based electrochemical biosensors as selective detectors. Analyst 2015; 140:5039-47. [DOI: 10.1039/c5an00593k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
This study demonstrates a new strategy to develop online electrochemical systems (OECSs) for continuously monitoring neurochemicals by efficiently integrating in vivo microdialysis with an oxidase-based electrochemical biosensor with low-potential electron mediators to shuttle the electron transfer of the oxidases.
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Affiliation(s)
- Zipin Zhang
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Analytical Chemistry for Living Biosystems
- Institute of Chemistry
- The Chinese Academy of Sciences (CAS)
- Beijing 100190
| | - Jie Hao
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Analytical Chemistry for Living Biosystems
- Institute of Chemistry
- The Chinese Academy of Sciences (CAS)
- Beijing 100190
| | - Tongfang Xiao
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Analytical Chemistry for Living Biosystems
- Institute of Chemistry
- The Chinese Academy of Sciences (CAS)
- Beijing 100190
| | - Ping Yu
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Analytical Chemistry for Living Biosystems
- Institute of Chemistry
- The Chinese Academy of Sciences (CAS)
- Beijing 100190
| | - Lanqun Mao
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Analytical Chemistry for Living Biosystems
- Institute of Chemistry
- The Chinese Academy of Sciences (CAS)
- Beijing 100190
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28
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Ren X, Wei J, Ren J, Qiang L, Tang F, Meng X. A sensitive biosensor for the fluorescence detection of the acetylcholinesterase reaction system based on carbon dots. Colloids Surf B Biointerfaces 2014; 125:90-5. [PMID: 25500325 DOI: 10.1016/j.colsurfb.2014.11.007] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2014] [Revised: 10/28/2014] [Accepted: 11/05/2014] [Indexed: 10/24/2022]
Abstract
The carbon dots (C-dots) with high fluorescence quantum yield were prepared using hydrothermal method. C-dots have been adopted as probes for the fluorescence turn-off detection of H2O2 based on the special sensibility for the hydroxyl radical. And then the biosensors for the detection of substrate and enzymes activities were established in the acetylcholinesterase reaction system, which were related to the production of H2O2. Specifically, the proposed fluorescent biosensor was successfully applied to detect the concentration of choline (in the range from 0.025 to 50 μM) and acetylcholine (in the range from 0.050 to 50 μM), and the activity of choline oxidase (in the range from 1 to 75 U/L) and acetylcholinesterase (1 to 80 U/L). These results showed a sensitive, universal, nontoxic and eco-friendly detecting technique has been developed.
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Affiliation(s)
- Xiangling Ren
- Laboratory of Controllable Preparation and Application of Nanomaterials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, NO. 29, Zhongguancun East Road, Haidian District, Beijing 100190, PR China; The State Key Laboratory of Bioelectronics, Southeast University, 210096, PR China
| | - Jianfei Wei
- Laboratory of Controllable Preparation and Application of Nanomaterials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, NO. 29, Zhongguancun East Road, Haidian District, Beijing 100190, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Jun Ren
- Laboratory of Controllable Preparation and Application of Nanomaterials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, NO. 29, Zhongguancun East Road, Haidian District, Beijing 100190, PR China
| | - Li Qiang
- Laboratory of Controllable Preparation and Application of Nanomaterials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, NO. 29, Zhongguancun East Road, Haidian District, Beijing 100190, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Fangqiong Tang
- Laboratory of Controllable Preparation and Application of Nanomaterials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, NO. 29, Zhongguancun East Road, Haidian District, Beijing 100190, PR China.
| | - Xianwei Meng
- Laboratory of Controllable Preparation and Application of Nanomaterials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, NO. 29, Zhongguancun East Road, Haidian District, Beijing 100190, PR China.
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Celebanska A, Lesniewski A, Niedziolka-Jonsson J, Kominiak M, Nogala W, Wittstock G, Opallo M. Carbon Nanoparticulate Film Electrode Prepared by Electrophoretic Deposition. Electrochemical oxidation of Thiocholine and Topography Imaging with SECM Equipment in Dry Conditions. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2014.08.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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30
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Zhang M, Sheng Q, Nie F, Zheng J. Synthesis of Cu nanoparticles-loaded Fe3O4@carbon core–shell nanocomposite and its application for electrochemical sensing of hydrogen peroxide. J Electroanal Chem (Lausanne) 2014. [DOI: 10.1016/j.jelechem.2014.07.020] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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31
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Lin Y, Yu P, Hao J, Wang Y, Ohsaka T, Mao L. Continuous and Simultaneous Electrochemical Measurements of Glucose, Lactate, and Ascorbate in Rat Brain Following Brain Ischemia. Anal Chem 2014; 86:3895-901. [DOI: 10.1021/ac4042087] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Yuqing Lin
- Beijing National
Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry
for Living Biosystems, Institute of Chemistry, The Chinese Academy of Sciences, Beijing 100190, China
- Department
of Chemistry, Capital Normal University, Beijing 100048, China
| | - Ping Yu
- Beijing National
Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry
for Living Biosystems, Institute of Chemistry, The Chinese Academy of Sciences, Beijing 100190, China
| | - Jie Hao
- Beijing National
Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry
for Living Biosystems, Institute of Chemistry, The Chinese Academy of Sciences, Beijing 100190, China
| | - Yuexiang Wang
- Beijing National
Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry
for Living Biosystems, Institute of Chemistry, The Chinese Academy of Sciences, Beijing 100190, China
| | - Takeo Ohsaka
- Department
of Electronic Chemistry, Interdisciplinary Graduate School
of Science and Engineering, Tokyo Institute of Technology, 4259 Nagatsuta,
Midori-ku, Yokohama 226-8502, Japan
| | - Lanqun Mao
- Beijing National
Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry
for Living Biosystems, Institute of Chemistry, The Chinese Academy of Sciences, Beijing 100190, China
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32
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Abucayon E, Ke N, Cornut R, Patelunas A, Miller D, Nishiguchi MK, Zoski CG. Investigating catalase activity through hydrogen peroxide decomposition by bacteria biofilms in real time using scanning electrochemical microscopy. Anal Chem 2013; 86:498-505. [PMID: 24328342 DOI: 10.1021/ac402475m] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Catalase activity through hydrogen peroxide decomposition in a 1 mM bulk solution above Vibrio fischeri (γ-Protebacteria-Vibrionaceae) bacterial biofilms of either symbiotic or free-living strains was studied in real time by scanning electrochemical microscopy (SECM). The catalase activity, in units of micromoles hydrogen peroxide decomposed per minute over a period of 348 s, was found to vary with incubation time of each biofilm in correlation with the corresponding growth curve of bacteria in liquid culture. Average catalase activity for the same incubation times ranging from 1 to 12 h was found to be 0.28 ± 0.07 μmol H2O2/min for the symbiotic biofilms and 0.31 ± 0.07 μmol H2O2/min for the free-living biofilms, suggesting similar catalase activity. Calculations based on Comsol Multiphysics simulations in fitting experimental biofilm data indicated that approximately (3 ± 1) × 10(6) molecules of hydrogen peroxide were decomposed by a single bacterium per second, signifying the presence of a highly active catalase. A 2-fold enhancement in catalase activity was found for both free-living and symbiotic biofilms in response to external hydrogen peroxide concentrations as low as 1 nM in the growth media, implying a similar mechanism in responding to oxidative stress.
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Affiliation(s)
- Erwin Abucayon
- Department of Chemistry and Biochemistry, New Mexico State University , Las Cruces, New Mexico 88003, United States
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Wang Y, Hu M. Blood‐Glucose Biosensors, Development and Challenges. DETECTION CHALLENGES IN CLINICAL DIAGNOSTICS 2013. [DOI: 10.1039/9781849737302-00065] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Diabetes mellitus is one of the major causes of premature illness and death worldwide. The World Health Organization estimated that by 2030, 439 million people, corresponding to 7.8% of the world adult population, will live with diabetes. With an increasing diabetic population, a Blood Glucose Monitoring System (BGMS) is becoming an ever important tool for diabetes management. The history of blood biosensor development can be traced back to 1932, when Warburg and Christian reported the “yellow enzyme” from yeast changed to colorless upon oxidizing its substrate and resumed the yellow color after its oxidation by oxygen. Since then a lot of research and development has taken place on blood glucose sensors, and the biosensor technology has gone through three generations, with the current commercially available BGMS predominantly relies on the second generation of technology. The advantages and challenges of each generation are discussed. This chapter will examine in detail topics covering the areas of electrode substrate and electrode material selection, fluid detection electrode, reaction chamber, chemistry (electrolyte, polymer, enzyme and mediator), detection method, analytical performance, regulatory requirements and the manufacturing process. The chapter will close with the clinical utility and future direction and application of glucose biosensor include a brief introduction to the Continuous Blood Glucose Monitoring System (CGMS).
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Affiliation(s)
- Yuan Wang
- Siemens HealthCare Diagnostics 511 Benedix Ave. Tarrytown, NY 10591 United States
| | - Madeleine Hu
- The College of New Jersey, 2000 Pennington Road Ewing, NJ 08628‐0718 United States
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34
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Kurowska E, Brzózka A, Jarosz M, Sulka G, Jaskuła M. Silver nanowire array sensor for sensitive and rapid detection of H2O2. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2013.01.077] [Citation(s) in RCA: 118] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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35
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Valenti VE, Abreu LCD, Fonseca FLA, Adami F, Sato MA, Vanderlei LCM, Ferreira LL, Rodrigues LM, Ferreira C. Effects of the administration of a catalase inhibitor into the fourth cerebral ventricle on cardiovascular responses in spontaneously hypertensive rats exposed to sidestream cigarette smoke. Clinics (Sao Paulo) 2013; 68:851-7. [PMID: 23778493 PMCID: PMC3674281 DOI: 10.6061/clinics/2013(06)21] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2012] [Accepted: 02/13/2013] [Indexed: 01/05/2023] Open
Abstract
OBJECTIVE Previous studies have demonstrated a relationship between brain oxidative stress and cardiovascular regulation. We evaluated the effects of central catalase inhibition on cardiovascular responses in spontaneously hypertensive rats exposed to sidestream cigarette smoke. METHODS Male Wistar Kyoto (WKY) rats and spontaneously hypertensive rats (SH) (16 weeks old) were implanted with a stainless steel guide cannula leading into the fourth cerebral ventricle (4th V). The femoral artery and vein were cannulated for arterial pressure and heart rate measurement and drug infusion, respectively. The rats were exposed to sidestream cigarette smoke for 180 minutes/day, 5 days/week for 3 weeks (CO: 100-300 ppm). The baroreflex was tested using a pressor dose of phenylephrine (8 μg/kg, bolus) and a depressor dose of sodium nitroprusside (50 μg/kg, bolus). Cardiovascular responses were evaluated before and 5, 15, 30 and 60 minutes after injection of a catalase inhibitor (3-amino-1,2,4-triazole, 0.001 g/100 μL) into the 4th V. RESULTS Vehicle administration into the 4th V did not affect the cardiovascular response, whereas administration of the central catalase inhibitor increased the basal HR and attenuated the bradycardic peak (p<0.05) to a greater extent in WKY rats exposed to sidestream cigarette smoke than in WKY rats exposed to fresh air. However, in spontaneously hypertensive rats, the effect of the catalase inhibitor treatment was stronger in the fresh air condition (p<0.05). CONCLUSION Administration of a catalase inhibitor into the 4th V combined with exposure to sidestream cigarette smoke has a stronger effect in WKY rats than in SH rats.
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Affiliation(s)
- Vitor E Valenti
- Universidade Estadual Paulista, Faculdade de Ciências e Tecnologia, Programa de Pós-Graduação em Fisioterapia, Presidente Prudente/SP, Brasil.
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Lu X, Cheng H, Huang P, Yang L, Yu P, Mao L. Hybridization of bioelectrochemically functional infinite coordination polymer nanoparticles with carbon nanotubes for highly sensitive and selective in vivo electrochemical monitoring. Anal Chem 2013; 85:4007-13. [PMID: 23496088 DOI: 10.1021/ac303743a] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
This study demonstrates the formation of a three-dimensional conducting framework through hybridization of bioelectrochemically active infinite coordination polymer (ICP) nanoparticles with single-walled carbon nanotubes (SWNTs) for highly sensitive and selective in vivo electrochemical monitoring with combination with in vivo microdialysis. The bioelectrochemically active ICP nanoparticles are synthesized through the self-assembly process of NAD(+) and Tb(3+), in which all biosensing elements including an electrocatalyst (i.e., methylene green, MG), cofactor (i.e., β-nicotinamide adenine dinucleotide, NAD(+)), and enzyme (i.e., glucose dehydrogenase, GDH) are adaptively encapsulated. The ICP/SWNT-based biosensors are simply prepared by drop-coating the as-formed ICP/SWNT nanocomposite onto a glassy carbon substrate. Electrochemical studies demonstrate that the simply prepared ICP/SWNT-based biosensors exhibit excellent biosensing properties with a higher sensitivity and stability than the ICP-based biosensors prepared only with ICP nanoparticles (i.e., without hybridization of SWNTs). By using a GDH-based electrochemical biosensor as an example, we demonstrate a technically simple yet effective online electroanalytical platform for continuously monitoring glucose in the brain of guinea pigs with the ICP/SWNT-based biosensor as an online detector in a continuous-flow system combined with in vivo microdialysis. Under the experimental conditions employed here, the dynamic linear range for glucose with the ICP/SWNT-biosensor is from 50 to 1000 μM. Moreover, in vivo selectivity investigations with the biosensors prepared by the GDH-free ICPs reveal that ICP/SWNT-based biosensors are very selective for the measurement of glucose in the cerebral system. The basal level of glucose in the microdialysates from the striatum of guinea pigs is determined to be 0.31 ± 0.03 mM (n = 3). The study offers a simple route to the preparation of electrochemical biosensors, which is envisaged to be particularly useful for probing the chemical events involved in some physiological and pathological processes.
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Affiliation(s)
- Xulin Lu
- Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China
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37
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An amperometric biosensor for the detection of hydrogen peroxide released from human breast cancer cells. Biosens Bioelectron 2013; 41:815-9. [DOI: 10.1016/j.bios.2012.10.019] [Citation(s) in RCA: 71] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2012] [Revised: 09/18/2012] [Accepted: 10/05/2012] [Indexed: 11/23/2022]
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Zhang M, Yu P, Mao L. Rational design of surface/interface chemistry for quantitative in vivo monitoring of brain chemistry. Acc Chem Res 2012; 45:533-43. [PMID: 22236096 DOI: 10.1021/ar200196h] [Citation(s) in RCA: 137] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
To understand the molecular basis of brain functions, researchers would like to be able to quantitatively monitor the levels of neurochemicals in the extracellular fluid in vivo. However, the chemical and physiological complexity of the central nervous system (CNS) presents challenges for the development of these analytical methods. This Account describes the rational design and careful construction of electrodes and nanoparticles with specific surface/interface chemistry for quantitative in vivo monitoring of brain chemistry. We used the redox nature of neurochemicals at the electrode/electrolyte interface to establish a basis for monitoring specific neurochemicals. Carbon nanotubes provide an electrode/electrolyte interface for the selective oxidation of ascorbate, and we have developed both in vivo voltammetry and an online electrochemical detecting system for continuously monitoring this molecule in the CNS. Although Ca(2+) and Mg(2+) are involved in a number of neurochemical signaling processes, they are still difficult to detect in the CNS. These divalent cations can enhance electrocatalytic oxidation of NADH at an electrode modified with toluidine blue O. We used this property to develop online electrochemical detection systems for simultaneous measurements of Ca(2+) and Mg(2+) and for continuous selective monitoring of Mg(2+) in the CNS. We have also harnessed biological schemes for neurosensing in the brain to design other monitoring systems. By taking advantage of the distinct reaction properties of dopamine (DA), we have developed a nonoxidative mechanism for DA sensing and a system that can potentially be used for continuously sensing of DA release. Using "artificial peroxidase" (Prussian blue) to replace a natural peroxidase (horseradish peroxidase, HRP), our online system can simultaneously detect basal levels of glucose and lactate. By substituting oxidases with dehydrogenases, we have used enzyme-based biosensing schemes to develop a physiologically relevant system for detecting glucose and lactate in rat brain. Because of their unique optical properties and modifiable surfaces, gold nanoparticles (Au-NPs) have provided a platform of colorimetric assay for in vivo cerebral glucose quantification. We designed and modified the surfaces of Au-NPs and then used a sequence of reactions to produce hydroxyl radicals from glucose.
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Affiliation(s)
- Meining Zhang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, the Chinese Academy of Sciences, Beijing 100190, China
| | - Ping Yu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, the Chinese Academy of Sciences, Beijing 100190, China
| | - Lanqun Mao
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, the Chinese Academy of Sciences, Beijing 100190, China
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Valenti VE, de Abreu LC, Sato MA, Ferreira C, Adami F, Fonseca FLA, Xavier V, Godoy M, Monteiro CB, Vanderlei LCM, Saldiva PHN. Sidestream cigarette smoke effects on cardiovascular responses in conscious rats: involvement of oxidative stress in the fourth cerebral ventricle. BMC Cardiovasc Disord 2012; 12:22. [PMID: 22463380 PMCID: PMC3352042 DOI: 10.1186/1471-2261-12-22] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2011] [Accepted: 03/30/2012] [Indexed: 02/07/2023] Open
Abstract
Background Cigarette exposure increases brain oxidative stress. The literature showed that increased brain oxidative stress affects cardiovascular regulation. However, no previous study investigated the involvement of brain oxidative stress in animals exposed to cigarette and its relationship with cardiovascular regulation. We aimed to evaluate the effects of central catalase inhibition on baroreflex and cardiovascular responses in rats exposed to sidestream cigarette smoke (SSCS). Methods We evaluated males Wistar rats (320-370 g), which were implanted with a stainless steel guide cannula into the fourth cerebral ventricle (4th V). Femoral artery and vein were cannulated for mean arterial pressure (MAP) and heart rate (HR) measurement and drug infusion, respectively. Rats were exposed to SSCS during three weeks, 180 minutes, 5 days/week (CO: 100-300 ppm). Baroreflex was tested with a pressor dose of phenylephrine (PHE, 8 μg/kg, bolus) to induce bradycardic reflex and a depressor dose of sodium nitroprusside (SNP, 50 μg/kg, bolus) to induce tachycardic reflex. Cardiovascular responses were evaluated before, 5, 15, 30 and 60 minutes after 3-amino-1,2,4-triazole (ATZ, catalase inhibitor, 0.001 g/100 μL) injection into the 4th V. Results Central catalase inhibition increased basal HR in the control group during the first 5 minutes. SSCS exposure increased basal HR and attenuated bradycardic peak during the first 15 minutes. Conclusion We suggest that SSCS exposure affects cardiovascular regulation through its influence on catalase activity.
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Affiliation(s)
- Vitor E Valenti
- Programa de Pós-Graduação em Fisioterapia, Faculdade de Ciências e Tecnologia, Universidade Estadual Paulista, UNESP, Presidente Prudente, SP, Brazil.
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Zhuang X, Wang D, Lin Y, Yang L, Yu P, Jiang W, Mao L. Strong Interaction between Imidazolium-Based Polycationic Polymer and Ferricyanide: Toward Redox Potential Regulation for Selective In Vivo Electrochemical Measurements. Anal Chem 2012; 84:1900-6. [DOI: 10.1021/ac202748s] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Xuming Zhuang
- School of Chemistry and Chemical
Engineering, Shandong University, Jinan
250100, China
- Beijing National
Laboratory
for Molecular Sciences, Key Laboratory of Analytical Chemistry for
Living Biosystems, Institute of Chemistry, The Chinese Academy of Sciences (CAS), Beijing 100190, China
| | - Dalei Wang
- Beijing National
Laboratory
for Molecular Sciences, Key Laboratory of Analytical Chemistry for
Living Biosystems, Institute of Chemistry, The Chinese Academy of Sciences (CAS), Beijing 100190, China
| | - Yuqing Lin
- Beijing National
Laboratory
for Molecular Sciences, Key Laboratory of Analytical Chemistry for
Living Biosystems, Institute of Chemistry, The Chinese Academy of Sciences (CAS), Beijing 100190, China
| | - Lifen Yang
- Beijing National
Laboratory
for Molecular Sciences, Key Laboratory of Analytical Chemistry for
Living Biosystems, Institute of Chemistry, The Chinese Academy of Sciences (CAS), Beijing 100190, China
| | - Ping Yu
- Beijing National
Laboratory
for Molecular Sciences, Key Laboratory of Analytical Chemistry for
Living Biosystems, Institute of Chemistry, The Chinese Academy of Sciences (CAS), Beijing 100190, China
| | - Wei Jiang
- School of Chemistry and Chemical
Engineering, Shandong University, Jinan
250100, China
| | - Lanqun Mao
- Beijing National
Laboratory
for Molecular Sciences, Key Laboratory of Analytical Chemistry for
Living Biosystems, Institute of Chemistry, The Chinese Academy of Sciences (CAS), Beijing 100190, China
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Anwar N, Vagin M, Laffir F, Armstrong G, Dickinson C, McCormac T. Transition metal ion-substituted polyoxometalates entrapped in polypyrrole as an electrochemical sensor for hydrogen peroxide. Analyst 2012; 137:624-30. [DOI: 10.1039/c1an15665a] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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42
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Li F, Xue M, Ma X, Zhang M, Cao T. Facile Patterning of Reduced Graphene Oxide Film into Microelectrode Array for Highly Sensitive Sensing. Anal Chem 2011; 83:6426-30. [DOI: 10.1021/ac200939g] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Fengwang Li
- Department of Chemistry, Renmin University of China, Beijing 100872, P. R. China
| | - Mianqi Xue
- Department of Chemistry, Renmin University of China, Beijing 100872, P. R. China
| | - Xinlei Ma
- Department of Chemistry, Renmin University of China, Beijing 100872, P. R. China
| | - Meining Zhang
- Department of Chemistry, Renmin University of China, Beijing 100872, P. R. China
| | - Tingbing Cao
- Department of Chemistry, Renmin University of China, Beijing 100872, P. R. China
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Zhang X, Li Q, Chen Z, Li H, Xu K, Zhang L, Tang B. Electrokinetic gated injection-based microfluidic system for quantitative analysis of hydrogen peroxide in individual HepG2 cells. LAB ON A CHIP 2011; 11:1144-1150. [PMID: 21298131 DOI: 10.1039/c0lc00263a] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
A microfluidic system to determine hydrogen peroxide (H(2)O(2)) in individual HepG2 cells based on the electrokinetic gated injection was developed for the first time. A home-synthesized fluorescent probe, bis(p-methylbenzenesulfonate)dichlorofluorescein (FS), was employed to label intracellular H(2)O(2) in the intact cells. On a simple cross microchip, multiple single-cell operations, including single cell injection, cytolysis, electrophoresis separation and detection of H(2)O(2), were automatically carried out within 60 s using the electrokinetic gated injection and laser-induced fluorescence detection (LIFD). The performance of the method was evaluated under the optimal conditions. The linear calibration curve was over a range of 4.39-610 amol (R(2)=0.9994). The detection limit was 0.55 amol or 9.0×10(-10) M (S/N=3). The relative standard deviations (RSDs, n=6) of migration time and peak area were 1.4% and 4.8%, respectively. With the use of this method, the average content of H(2)O(2) in single HepG2 cells was found to be 16.09±9.84 amol (n=15). Separation efficiencies in excess of 17,000 theoretical plates for the cells were achieved. These results demonstrated that the efficient integration and automation of these single-cell operations enabled the sensitive, reproducible, and quantitative examination of intracellular H(2)O(2) at single-cell level. Owing to the advantages of simple microchip structure, controllable single-cell manipulation and ease in building, this platform provides a universal way to automatically determine other intracellular constituents within single cells.
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Affiliation(s)
- Xinyuan Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Engineering Research Center of Pesticide and Medicine Intermediate Clean Production, Ministry of Education, Shandong Normal University, Jinan, 250014
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Real-time mapping of a hydrogen peroxide concentration profile across a polymicrobial bacterial biofilm using scanning electrochemical microscopy. Proc Natl Acad Sci U S A 2011; 108:2668-73. [PMID: 21282623 DOI: 10.1073/pnas.1018391108] [Citation(s) in RCA: 110] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Quantitative detection of hydrogen peroxide in solution above a Streptococcus gordonii (Sg) bacterial biofilm was studied in real time by scanning electrochemical microscopy (SECM). The concentration of hydrogen peroxide was determined to be 0.7 mM to 1.6 mM in the presence of 10 mM glucose over a period of 2 to 8 h. The hydrogen peroxide production measured was higher near the biofilm surface in comparison to Sg grown planktonically. Differential hydrogen peroxide production was observed both by fluorometric as well as by SECM measurements. The interaction between two different species in a bacterial biofilm of Sg and Aggregatibacter actinomycetemcomitans (Aa) in terms of hydrogen peroxide production was also studied by SECM. One-directional y-scan SECM measurements showed the unique spatial mapping of hydrogen peroxide concentration across a mixed species biofilm and revealed that hydrogen peroxide concentration varies greatly dependent upon local species composition.
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Amperometric sensors based on Ni/Al and Co/Al layered double hydroxides modified electrode and their application for hydrogen peroxide detection. Biosens Bioelectron 2011; 26:1970-4. [DOI: 10.1016/j.bios.2010.08.049] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2010] [Revised: 08/06/2010] [Accepted: 08/13/2010] [Indexed: 11/17/2022]
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Toniolo R, Dossi N, Pizzariello A, Susmel S, Bontempelli G. Simultaneous Detection of Ascorbic Acid and Hydrogen Peroxide by Flow-Injection Analysis with a Thin Layer Dual-Electrode Detector. ELECTROANAL 2010. [DOI: 10.1002/elan.201000511] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Lin Y, Zhu N, Yu P, Su L, Mao L. Physiologically relevant online electrochemical method for continuous and simultaneous monitoring of striatum glucose and lactate following global cerebral ischemia/reperfusion. Anal Chem 2010; 81:2067-74. [PMID: 19281258 DOI: 10.1021/ac801946s] [Citation(s) in RCA: 101] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
This study demonstrates a new electroanalytical method with a high physiological relevance for simultaneous online monitoring of glucose and lactate in the striatum of the rat brain following global cerebral ischemia/reperfusion. The online analytical method is based on the efficient integration of in vivo microdialysis sampling with an online selective electrochemical detection with the electrochemical biosensors with dehydrogenases, i.e., glucose and lactate dehydrogenases, as recognition elements. The dehydrogenase-based electrochemical biosensors are developed onto the dual split-disk plastic carbon film (SPCF) electrodes with methylene green (MG) adsorbed onto single-walled carbon nanotubes (SWNTs) as the electrocatalyst for the oxidation of dihydronicotiamide adenine dinucleotide (NADH) at a low potential of 0.0 V (vs Ag/AgCl). Artificial cerebrospinal fluid (aCSF) containing NAD(+) is externally perfused from a second pump and online mixed with the brain microdialysates to minimize the variation of pH that occurred following the cerebral ischemia/reperfusion and to supply NAD(+) cofactor and O(2) for the enzymatic reactions of dehydrogenases and ascorbate oxidase, respectively. As a result, the developed online electroanalytical method exhibits a high selectivity against the electrochemically active species endogenously existing in the cerebral systems and a high tolerance against the variation of pH and O(2) following cerebral ischemia/reperfusion. This property, along with the good linearity and a high stability toward glucose and lactate as well as little cross-talk between two biosensors, substantially makes this method possible for the continuous, simultaneous, and online monitoring of glucose and lactate in the rat brain following global cerebral ischemia/reperfusion. This study establishes a new and effective platform for the investigation of the energy metabolism in physiological and pathological processes.
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Affiliation(s)
- Yuqing Lin
- Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, The Chinese Academy of Sciences, Beijing 100190, China
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Razmi H, Mohammad-Rezaei R. Non-enzymatic hydrogen peroxide sensor using an electrode modified with iron pentacyanonitrosylferrate nanoparticles. Mikrochim Acta 2010. [DOI: 10.1007/s00604-010-0426-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Szot K, Watkins JD, Bull SD, Marken F, Opallo M. Three dimensional film electrode prepared from oppositely charged carbon nanoparticles as efficient enzyme host. Electrochem commun 2010. [DOI: 10.1016/j.elecom.2010.03.020] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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Rui Q, Komori K, Tian Y, Liu H, Luo Y, Sakai Y. Electrochemical biosensor for the detection of H2O2 from living cancer cells based on ZnO nanosheets. Anal Chim Acta 2010; 670:57-62. [PMID: 20685417 DOI: 10.1016/j.aca.2010.04.065] [Citation(s) in RCA: 107] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2009] [Revised: 10/09/2009] [Accepted: 04/30/2010] [Indexed: 10/19/2022]
Abstract
In this work, direct electron transfer of cytochrome c (cyt. c)--a model for studying the electron transfer of enzymes is achieved at hexagonal ZnO nanosheets by one-step electrodeposition. UV-vis spectra and electrochemical data demonstrate that such ZnO nanosheets can supply a bio-compatible surface to keep the bioactivity of cyt. c. The redox formal potential (E(0)') of cyt. c is estimated to be 338.2+/-4.3 mV (vs. AgAgCl) at the nanostructured ZnO surface. This value is much more positive than those of enzymes previously obtained at other metal oxides and zeolite surfaces. Experiment data show, under the optimized potential of 0.0 V (vs. AgAgCl), the electrochemical determination of H(2)O(2) is free from not only anodic interferences like ascorbic acid (AA) and dopamine (DA), but also a cathodic interference-O(2). Such an excellent selectivity enable the present H(2)O(2) biosensor determine the extracellular H(2)O(2) released from living human hepatoma cells.
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Affiliation(s)
- Qi Rui
- Department of Chemistry, Tongji University, Siping Road 1239, Shanghai 200092, PR China
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