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Xu X, Zuo Y, Chen S, Hatami A, Gu H. Advancements in Brain Research: The In Vivo/In Vitro Electrochemical Detection of Neurochemicals. BIOSENSORS 2024; 14:125. [PMID: 38534232 DOI: 10.3390/bios14030125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 02/12/2024] [Accepted: 02/20/2024] [Indexed: 03/28/2024]
Abstract
Neurochemicals, crucial for nervous system function, influence vital bodily processes and their fluctuations are linked to neurodegenerative diseases and mental health conditions. Monitoring these compounds is pivotal, yet the intricate nature of the central nervous system poses challenges. Researchers have devised methods, notably electrochemical sensing with micro-nanoscale electrodes, offering high-resolution monitoring despite low concentrations and rapid changes. Implantable sensors enable precise detection in brain tissues with minimal damage, while microdialysis-coupled platforms allow in vivo sampling and subsequent in vitro analysis, addressing the selectivity issues seen in other methods. While lacking temporal resolution, techniques like HPLC and CE complement electrochemical sensing's selectivity, particularly for structurally similar neurochemicals. This review covers essential neurochemicals and explores miniaturized electrochemical sensors for brain analysis, emphasizing microdialysis integration. It discusses the pros and cons of these techniques, forecasting electrochemical sensing's future in neuroscience research. Overall, this comprehensive review outlines the evolution, strengths, and potential applications of electrochemical sensing in the study of neurochemicals, offering insights into future advancements in the field.
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Affiliation(s)
- Xiaoxuan Xu
- 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 411201, China
| | - Yimei Zuo
- 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 411201, China
| | - Shu Chen
- 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 411201, China
| | - Amir Hatami
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Prof. Sobouti Boulevard, P.O. Box 45195-1159, Zanjan 45137-66731, Iran
- Department of Chemistry and Molecular Biology, University of Gothenburg, 405 30 Gothenburg, Sweden
| | - Hui Gu
- 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 411201, China
- Department of Chemistry and Molecular Biology, University of Gothenburg, 405 30 Gothenburg, Sweden
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2
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Timoshenko RV, Gorelkin PV, Vaneev AN, Krasnovskaya OO, Akasov RA, Garanina AS, Khochenkov DA, Iakimova TM, Klyachko NL, Abakumova TO, Shashkovskaya VS, Chaprov KD, Makarov AA, Mitkevich VA, Takahashi Y, Edwards CRW, Korchev YE, Erofeev AS. Electrochemical Nanopipette Sensor for In Vitro/In Vivo Detection of Cu 2+ Ions. Anal Chem 2024; 96:127-136. [PMID: 38126724 DOI: 10.1021/acs.analchem.3c03337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
In vitro/in vivo detection of copper ions is a challenging task but one which is important in the development of new approaches to the diagnosis and treatment of cancer and hereditary diseases such as Alzheimer's, Wilson's, etc. In this paper, we present a nanopipette sensor capable of measuring Cu2+ ions with a linear range from 0.1 to 10 μM in vitro and in vivo. Using the gold-modified nanopipette sensor with a copper chelating ligand, we evaluated the accumulation ability of the liposomal form of an anticancer Cu-containing complex at three levels of biological organization. First, we detected Cu2+ ions in a single cell model of human breast adenocarcinoma MCF-7 and in murine melanoma B16 cells. The insertion of the nanoelectrode did not result in leakage of the cell membrane. We then evaluated the distribution of the Cu-complex in MCF-7 tumor spheroids and found that the diffusion-limited accumulation was a function of the depth, typical for 3D culture. Finally, we demonstrated the use of the sensor for Cu2+ ion detection in the brain of an APP/PS1 transgenic mouse model of Alzheimer's disease and tumor-bearing mice in response to injection (2 mg kg-1) of the liposomal form of the anticancer Cu-containing complex. Enhanced stability and selectivity, as well as distinct copper oxidation peaks, confirmed that the developed sensor is a promising tool for testing various types of biological systems. In summary, this research has demonstrated a minimally invasive electrochemical technique with high temporal resolution that can be used for the study of metabolism of copper or copper-based drugs in vitro and in vivo.
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Affiliation(s)
- Roman V Timoshenko
- National University of Science and Technology (MISIS), Moscow 119049, Russia
| | - Petr V Gorelkin
- National University of Science and Technology (MISIS), Moscow 119049, Russia
| | - Alexander N Vaneev
- National University of Science and Technology (MISIS), Moscow 119049, Russia
- Chemistry Department, Lomonosov Moscow State University, Moscow 119991, Russia
| | - Olga O Krasnovskaya
- National University of Science and Technology (MISIS), Moscow 119049, Russia
- Chemistry Department, Lomonosov Moscow State University, Moscow 119991, Russia
| | - Roman A Akasov
- Federal Scientific Research Center "Crystallography and Photonics" of the Russian Academy of Sciences, Moscow 119333, Russia
- Sechenov First Moscow State Medical University, Moscow 119991, Russia
| | | | - Dmitry A Khochenkov
- N.N. Blokhin National Medical Research Center of Oncology, Moscow 115478, Russia
- Togliatti State University, Togliatti 445020, Russia
| | - Tamara M Iakimova
- Chemistry Department, Lomonosov Moscow State University, Moscow 119991, Russia
| | - Natalia L Klyachko
- Chemistry Department, Lomonosov Moscow State University, Moscow 119991, Russia
| | | | | | - Kirill D Chaprov
- Institute of Physiologically Active Compounds at Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry of the Russian Academy of Sciences, Chernogolovka 142432, Russia
| | - Alexander A Makarov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow 119991, Russia
| | - Vladimir A Mitkevich
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow 119991, Russia
| | - Yasufumi Takahashi
- Department of Electronics, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan
- Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kanazawa 920-1192, Japan
| | | | - Yuri E Korchev
- Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kanazawa 920-1192, Japan
- Department of Medicine, Imperial College London, London W120NN, U.K
| | - Alexander S Erofeev
- National University of Science and Technology (MISIS), Moscow 119049, Russia
- Chemistry Department, Lomonosov Moscow State University, Moscow 119991, Russia
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3
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Engineered Nanomaterial based Implantable MicroNanoelectrode for in vivo Analysis: Technological Advancement and Commercial Aspects. Microchem J 2023. [DOI: 10.1016/j.microc.2023.108431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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4
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Vaneev AN, Timoshenko RV, Gorelkin PV, Klyachko NL, Korchev YE, Erofeev AS. Nano- and Microsensors for In Vivo Real-Time Electrochemical Analysis: Present and Future Perspectives. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12213736. [PMID: 36364512 PMCID: PMC9656311 DOI: 10.3390/nano12213736] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 10/16/2022] [Accepted: 10/21/2022] [Indexed: 05/14/2023]
Abstract
Electrochemical nano- and microsensors have been a useful tool for measuring different analytes because of their small size, sensitivity, and favorable electrochemical properties. Using such sensors, it is possible to study physiological mechanisms at the cellular, tissue, and organ levels and determine the state of health and diseases. In this review, we highlight recent advances in the application of electrochemical sensors for measuring neurotransmitters, oxygen, ascorbate, drugs, pH values, and other analytes in vivo. The evolution of electrochemical sensors is discussed, with a particular focus on the development of significant fabrication schemes. Finally, we highlight the extensive applications of electrochemical sensors in medicine and biological science.
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Affiliation(s)
- Alexander N. Vaneev
- Research Laboratory of Biophysics, National University of Science and Technology “MISiS”, 119049 Moscow, Russia
- Chemistry Department, Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Roman V. Timoshenko
- Research Laboratory of Biophysics, National University of Science and Technology “MISiS”, 119049 Moscow, Russia
| | - Petr V. Gorelkin
- Research Laboratory of Biophysics, National University of Science and Technology “MISiS”, 119049 Moscow, Russia
| | - Natalia L. Klyachko
- Chemistry Department, Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Yuri E. Korchev
- Department of Medicine, Imperial College London, London W12 0NN, UK
| | - Alexander S. Erofeev
- Research Laboratory of Biophysics, National University of Science and Technology “MISiS”, 119049 Moscow, Russia
- Chemistry Department, Lomonosov Moscow State University, 119991 Moscow, Russia
- Correspondence:
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5
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Liu G, Sun X, Li X, Wang Z. The Bioanalytical and Biomedical Applications of Polymer Modified Substrates. Polymers (Basel) 2022; 14:826. [PMID: 35215740 PMCID: PMC8878960 DOI: 10.3390/polym14040826] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Revised: 02/14/2022] [Accepted: 02/17/2022] [Indexed: 01/11/2023] Open
Abstract
Polymers with different structures and morphology have been extensively used to construct functionalized surfaces for a wide range of applications because the physicochemical properties of polymers can be finely adjusted by their molecular weights, polydispersity and configurations, as well as the chemical structures and natures of monomers. In particular, the specific functions of polymers can be easily achieved at post-synthesis by the attachment of different kinds of active molecules such as recognition ligand, peptides, aptamers and antibodies. In this review, the recent advances in the bioanalytical and biomedical applications of polymer modified substrates were summarized with subsections on functionalization using branched polymers, polymer brushes and polymer hydrogels. The review focuses on their applications as biosensors with excellent analytical performance and/or as nonfouling surfaces with efficient antibacterial activity. Finally, we discuss the perspectives and future directions of polymer modified substrates in the development of biodevices for the diagnosis, treatment and prevention of diseases.
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Affiliation(s)
- Guifeng Liu
- Department of Radiology, China-Japan Union Hospital of Jilin University, Xiantai Street, Changchun 130033, China; (G.L.); (X.L.)
| | - Xudong Sun
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China;
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Jinzhai Road, Hefei 230026, China
| | - Xiaodong Li
- Department of Radiology, China-Japan Union Hospital of Jilin University, Xiantai Street, Changchun 130033, China; (G.L.); (X.L.)
| | - Zhenxin Wang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China;
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Jinzhai Road, Hefei 230026, China
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6
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Zhang Z, Li M, Zuo Y, Chen S, Zhuo Y, Lu M, Shi G, Gu H. In Vivo Monitoring of pH in Subacute PD Mouse Brains with a Ratiometric Electrochemical Microsensor Based on Poly(melamine) Films. ACS Sens 2022; 7:235-244. [PMID: 34936337 DOI: 10.1021/acssensors.1c02051] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
In vivo monitoring of cerebral pH is of great significance because its disturbance is related to some pathological processes such as neurodegenerative diseases, for example, Parkinson's disease (PD). In this study, we developed an electrochemical microsensor based on poly(melamine) (PMel) films for ratiometric monitoring of pH in subacute PD mouse brains. In this microsensor, PMel films were prepared from a simple electropolymerization approach in a melamine-containing solution, serving as the selective pH recognition membrane undergoing a 2H+/2e- process. Meanwhile, electrochemically oxidized graphene oxide (EOGO) produced a built-in correction signal which helped avoid the environmental interference of the complicated brain systems. The potential difference between the peaks generated from EOGO and PMel gradually decreased with the aqueous pH increasing from 4.0 to 9.0, constituting the detection foundation of the ratiometric electrochemical microsensor (REM). The in vitro studies demonstrated that this proposed method exhibited a high sensitivity (a Nernstian response of -61.35 mV/pH) and remarkable selectivity against amino acids, anions, cations, and biochemical and reactive oxygen species coexisting in the brain. Coupled with its excellent stability and reproducibility and good antibiofouling based on short-term detection, the developed REM could serve as a disposable sensor for the determination of cerebral pH in vivo. Its following successful application in the real-time measurement of pH in the striatum, hippocampus, and cortex of rat brains in the events of global cerebral ischemia/reperfusion verified the reliability of this method. Finally, we adopted this robust REM to systematically analyze and compare the average pH in different regions of normal and subacute PD mouse brains.
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Affiliation(s)
- 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
| | - Mengyin Li
- 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
| | - 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
| | - 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
| | - Guoyue Shi
- School of Chemistry and Molecular Engineering, Shanghai Key Laboratory for Urban Ecological Processes and Eco-Restoration, East China Normal University, 500 Dongchuan Road, Shanghai 200241, 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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7
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Qian Y, Zhang L, Tian Y. Highly Stable Electrochemical Probe with Bidentate Thiols for Ratiometric Monitoring of Endogenous Polysulfide in Living Mouse Brains. Anal Chem 2021; 94:1447-1455. [PMID: 34951539 DOI: 10.1021/acs.analchem.1c04894] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The lack of reliable approaches for real-time measurement and quantification of polysulfides (H2Sn) in vivo greatly limits the exploration of their potential roles in brain functions. Herein, an electrochemical probe, 4-(5-(1,2-dithiolan-3-yl)pentanamido)-1,2-phenylene bis(2-fluoro-5-nitrobenzoate) (FP2), was rationally designed and created for determination of H2Sn. The bis-electrophilic groups of FP2 could specifically recognize two -SH groups in H2Sn and trigger the generation of an electroactive pyrocatechol moiety, resulting in a well-defined faradic current signal at ∼0.24 V (vs Ag/AgCl). Meanwhile, bidentate thiols were designed as anchoring sites to greatly improve the assembled stability of FP2 at the Au surface, which efficiently defended the interference of glutathione (GSH) with a current decrease of less than 5.2% even after long-term measurements in 5 mM GSH for 3 h. In addition, a stable inner reference molecule with dithiols, α-lipoic acid ferrocenylamide (FcBT), was synthesized to construct a ratiometric electrochemical strategy for in vivo determination of H2Sn through one-step coassembling with FP2 via double S-Au bonds. The present ratiometric strategy demonstrated high selectivity for real-time tracking of H2Sn in a linear range of 0.25-20 μM. Eventually, the developed microelectrode with high selectivity, accuracy, and stability was employed for in vivo assaying of H2Sn in mouse brains with ischemia.
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Affiliation(s)
- Yinjie Qian
- School of Chemistry and Molecular Engineering, East China Normal University, Dongchuan Road 500, Shanghai 200241, China
| | - Limin Zhang
- School of Chemistry and Molecular Engineering, East China Normal University, Dongchuan Road 500, Shanghai 200241, China
| | - Yang Tian
- School of Chemistry and Molecular Engineering, East China Normal University, Dongchuan Road 500, Shanghai 200241, China
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8
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Yavarinasab A, Abedini M, Tahmooressi H, Janfaza S, Tasnim N, Hoorfar M. Potentiodynamic Electrochemical Impedance Spectroscopy of Polyaniline-Modified Pencil Graphite Electrodes for Selective Detection of Biochemical Trace Elements. Polymers (Basel) 2021; 14:polym14010031. [PMID: 35012052 PMCID: PMC8747131 DOI: 10.3390/polym14010031] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 12/12/2021] [Accepted: 12/14/2021] [Indexed: 02/03/2023] Open
Abstract
In this study, we analyzed the application of potentiodynamic electrochemical impedance spectroscopy (PDEIS) for a selective in situ recognition of biological trace elements, i.e., Cr (III), Cu (II), and Fe (III). The electrochemical sensor was developed using the electropolymerization of aniline (Ani) on the surface of the homemade pencil graphite electrodes (PGE) using cyclic voltammetry (CV). The film was overoxidized to diminish the background current. A wide range of potential (V = −0.2 V to 1.0 V) was investigated to study the impedimetric and capacitive behaviour of the PAni/modified PGE. The impedance behaviors of the films were recorded at optimum potentials through electrochemical impedance spectroscopy (EIS) and scrutinized by means of an appropriate equivalent circuit at different voltages and at their corresponding oxidative potentials. The values of the equivalent circuit were used to identify features (charge transfer-resistant and double layer capacitance) that can selectivity distinguish different trace elements with the concentration of 10 μM. The PDEIS spectra represented the highest electron transfer for Cu (II) and Cr (III) in a broad potential range between +0.1 and +0.4 V while the potential V = +0.2 V showed the lowest charge transfer resistance for Fe (III). The results of this paper showed the capability of PDEIS as a complementary tool for conventional CV and EIS measurement for metallic ion sensing.
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Affiliation(s)
- Adel Yavarinasab
- School of Engineering, University of British Columbia, Kelowna, BC V1V 1V7, Canada; (A.Y.); (H.T.); (S.J.)
| | - Mostafa Abedini
- Abidi Pharmaceuticals, Research and Development Centre, Tehran 1389776363, Iran;
| | - Hamed Tahmooressi
- School of Engineering, University of British Columbia, Kelowna, BC V1V 1V7, Canada; (A.Y.); (H.T.); (S.J.)
| | - Sajjad Janfaza
- School of Engineering, University of British Columbia, Kelowna, BC V1V 1V7, Canada; (A.Y.); (H.T.); (S.J.)
| | - Nishat Tasnim
- Faculty of Engineering and Computer Science, University of Victoria, Victoria, BC V8W 2Y2, Canada;
| | - Mina Hoorfar
- Faculty of Engineering and Computer Science, University of Victoria, Victoria, BC V8W 2Y2, Canada;
- Correspondence:
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9
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Qu ZB, Jiang Y, Zhang J, Chen S, Zeng R, Zhuo Y, Lu M, Shi G, Gu H. Tailoring Oxygen-Containing Groups on Graphene for Ratiometric Electrochemical Measurements of Ascorbic Acid in Living Subacute Parkinson's Disease Mouse Brains. Anal Chem 2021; 93:16598-16607. [PMID: 34844405 DOI: 10.1021/acs.analchem.1c03965] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Ascorbic acid (AA), a major antioxidant in the central nervous system (CNS), is involved in withstanding oxidative stress that plays a significant role in the pathogenesis of Parkinson's disease (PD). Exploring the AA disturbance in the process of PD is of great value in understanding the molecular mechanism of PD. Herein, by virtue of a carbon fiber electrode (CFE) as a matric electrode, a three-step electrochemical process for tailoring oxygen-containing groups on graphene was well designed: potentiostatic deposition was carried out to fabricate graphene oxide on CFE, electrochemical reduction that assisted in removing the epoxy groups accelerated the electron transfer kinetics of AA oxidation, and electrochemical oxidation that increased the content of the carbonyl group (C═O) generated an inner-reference signal. The mechanism was solidified by ab initio calculations by comparing AA absorption on defected models of graphene functionalized with different oxygen groups including carboxyl, hydroxyl, epoxy, and carbonyl. It was found that epoxy groups would hinder the physical absorption of AA onto graphene, while other functional groups would be beneficial to it. Biocompatible polyethylenedioxythiophene (PEDOT) was further rationally assembled to improve the antifouling property of graphene. As a result, a new platform for ratiometric electrochemical measurements of AA with high sensitivity, excellent selectivity, and reproducibility was established. In vivo determination of AA levels in different regions of living mouse brains by the proposed method demonstrated that AA decreased remarkably in the hippocampus and cortex of a subacute PD mouse than those of a normal mouse.
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Affiliation(s)
- Zhi-Bei Qu
- Department of Medicinal Chemistry, School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Yimin Jiang
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, P. R. China
| | - Jiaxin Zhang
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, P. R. China
| | - Shu Chen
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, P. R. China
| | - Rongjin Zeng
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, P. R. China
| | - Yi Zhuo
- Hunan Provincial Key Laboratory of Neurorestoratology, College of Life Sciences, Hunan Normal University, Changsha, Hunan 410006, P.R. China
| | - Ming Lu
- Hunan Provincial Key Laboratory of Neurorestoratology, College of Life Sciences, Hunan Normal University, Changsha, Hunan 410006, P.R. China
| | - Guoyue Shi
- School of Chemistry and Molecular Engineering, Shanghai Key Laboratory for Urban Ecological Processes and Eco-Restoration, East China Normal University, Shanghai 200241, P. R. China
| | - Hui Gu
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, P. R. China
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Progress on the reaction-based methods for detection of endogenous hydrogen sulfide. Anal Bioanal Chem 2021; 414:2809-2839. [PMID: 34825272 DOI: 10.1007/s00216-021-03777-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 10/12/2021] [Accepted: 11/05/2021] [Indexed: 12/29/2022]
Abstract
Hydrogen sulfide (H2S) is a biologically signaling molecule that mediates a wide range of physiological functions, which is frequently misregulated in numerous pathological processes. As such, measurement of H2S holds great attention due to its unique physiological and pathophysiological roles. Currently, a variety of methods based on the H2S-involved reactions have been reported for detection of endogenous H2S, bearing the advantages of good specificity and high sensitivity. This review describes in detail the types of reactions, their mechanisms, and their applications in biological research, thus hopefully providing some guidelines to the researchers in this field for further investigation.
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11
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An overview of Structured Biosensors for Metal Ions Determination. CHEMOSENSORS 2021. [DOI: 10.3390/chemosensors9110324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The determination of metal ions is important for nutritional and toxicological assessment. Atomic spectrometric techniques are highly efficient for the determination of these species, but the high costs of acquisition and maintenance hinder the application of these techniques. Inexpensive alternatives for metallic element determination are based on dedicated biosensors. These devices mimic biological systems and convert biochemical processes into physical outputs and can be used for the sensitive and selective determination of chemical species such as cations. In this work, an overview of the proposed biosensors for metal ions determination was carried out considering the last 15 years of publications. Statistical data on the applications, response mechanisms, instrumentation designs, applications of nanomaterials, and multielement analysis are herein discussed.
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12
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Xiao X, Li C, Liu Y, Feng Y, Han K, Xiang H, Shi G, Gu H. A ratiometric electrochemical microsensor for monitoring chloride ions in vivo. Analyst 2021; 146:6202-6210. [PMID: 34519726 DOI: 10.1039/d1an01370j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Chloride ion (Cl-), the most common anion in animal brain, has been verified to play a vital role in maintaining normal physiological processes. Thus, development of a reliable platform to determine Cl- is of great significance for brain research involving Cl-. In this work, a ratiometric electrochemical microsensor (REM) for the in vivo measurement of cerebral Cl- was designed. To prepare REM, uniform Ag nanoparticles (Ag NPs) with nano-level sizes were synthesized via an adsorption-reduction process, which served as selective recognition elements for Cl- determination, while methylene blue (MB) was absorbed and acted as an inner reference unit to avoid the environmental interference of complicated brain systems. As a result, this developed REM exhibited high sensitivity and selectivity, as well as good stability, reproducibility and anti-biofouling. This reliable approach was established to monitor Cl- in mouse brain.
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Affiliation(s)
- Xia Xiao
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education, Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, China.
| | - Chenchen Li
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education, Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, China.
| | - Yuzhi Liu
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education, Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, China.
| | - Yaqian Feng
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education, Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, China.
| | - Kai Han
- College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, P. R. China.
| | - Haoyue Xiang
- College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, P. R. China.
| | - Guoyue Shi
- Lab of Biochemical Sensing Technology, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, China
| | - Hui Gu
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education, Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, China.
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Li C, Zhuo Y, Xiao X, Li S, Han K, Lu M, Zhang J, Chen S, Gu H. Facile Electrochemical Microbiosensor Based on In Situ Self-Assembly of Ag Nanoparticles Coated on Ti 3C 2T x for In Vivo Measurements of Chloride Ions in the PD Mouse Brain. Anal Chem 2021; 93:7647-7656. [PMID: 34014093 DOI: 10.1021/acs.analchem.1c00342] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Chloride ion (Cl-), one of the most important anions in the brain, has been confirmed to participate in the pathological process of Parkinson's disease (PD). As such, the development of a reliable method for in vivo measurements of Cl- is extremely appealing, especially for understanding the pathogenesis of PD. We herein designed a facile electrochemical microbiosensor (ECMB), based on in situ self-assembly of Ag nanoparticles (Ag NPs) coated on Ti3C2Tx. The uniform nanosized Ag NPs were reduced by Ti3C2Tx by a simple dipping process, endowing the ECMB with excellent specificity toward Cl- detection and remarkably reproducible preparation process. Meanwhile, electro-oxidized graphene oxide was introduced as an inner reference, thus avoiding the environmental interference of the complicated brain systems to increase the determination accuracy. An extensive in vitro study revealed that the proposed ECMB would be a robust candidate for real-time monitoring of Cl- in the PD mouse brain with high selectivity, accuracy, and reproducibility. Moreover, the availability and reliability toward in vivo Cl- monitoring of the designed ECMB were well confirmed by comparing with the standard Volhard's method. Finally, by virtue of the successful employment of the developed detecting platform in the in vivo measurement of Cl- in the PD mouse brain, systematic analysis and comparison of the average levels of Cl- in the three regions including cortex, striatum, and hippocampus of brains from normal and PD model mice have been achieved.
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Affiliation(s)
- Chenchen Li
- 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 Provincical Key Laboratory of Neurorestoratology, College of Life Sciences, Hunan Normal University, Changsha, Hunan 410006, P. R. China
| | - Xia Xiao
- 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
| | - Shuangfu Li
- College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, P. R. China
| | - Kai Han
- College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, P. R. China
| | - Ming Lu
- The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, Hunan Provincical Key Laboratory of Neurorestoratology, College of Life Sciences, Hunan Normal University, Changsha, Hunan 410006, P. R. China
| | - Jiaxin 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
| | - 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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14
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Spring SA, Goggins S, Frost CG. Ratiometric Electrochemistry: Improving the Robustness, Reproducibility and Reliability of Biosensors. Molecules 2021; 26:2130. [PMID: 33917231 PMCID: PMC8068091 DOI: 10.3390/molecules26082130] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 04/01/2021] [Accepted: 04/02/2021] [Indexed: 12/21/2022] Open
Abstract
Electrochemical biosensors are an increasingly attractive option for the development of a novel analyte detection method, especially when integration within a point-of-use device is the overall objective. In this context, accuracy and sensitivity are not compromised when working with opaque samples as the electrical readout signal can be directly read by a device without the need for any signal transduction. However, electrochemical detection can be susceptible to substantial signal drift and increased signal error. This is most apparent when analysing complex mixtures and when using small, single-use, screen-printed electrodes. Over recent years, analytical scientists have taken inspiration from self-referencing ratiometric fluorescence methods to counteract these problems and have begun to develop ratiometric electrochemical protocols to improve sensor accuracy and reliability. This review will provide coverage of key developments in ratiometric electrochemical (bio)sensors, highlighting innovative assay design, and the experiments performed that challenge assay robustness and reliability.
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Affiliation(s)
- Sam A. Spring
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, UK;
| | - Sean Goggins
- Bio-Techne (Tocris), The Watkins Building, Atlantic Road, Avonmouth, Bristol BS11 9QD, UK;
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15
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Romero M, Macchione MA, Mattea F, Strumia M. The role of polymers in analytical medical applications. A review. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105366] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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16
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Timoshenko RV, Vaneev AN, Savin NA, Klyachko NL, Parkhomenko YN, Salikhov SV, Majouga AG, Gorelkin PV, Erofeev AS. Promising Approaches for Determination of Copper Ions in Biological Systems. ACTA ACUST UNITED AC 2020. [DOI: 10.1134/s1995078020020196] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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17
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Zeng Q, Zhou Y, Liang D, He H, Liu X, Zhu R, Zhang M, Luo X, Wang Y, Huang G. Exosomes Secreted From Bone Marrow Mesenchymal Stem Cells Attenuate Oxygen-Glucose Deprivation/Reoxygenation-Induced Pyroptosis in PC12 Cells by Promoting AMPK-Dependent Autophagic Flux. Front Cell Neurosci 2020; 14:182. [PMID: 32765221 PMCID: PMC7379865 DOI: 10.3389/fncel.2020.00182] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Accepted: 05/28/2020] [Indexed: 12/14/2022] Open
Abstract
Background: Cerebral ischemia–reperfusion (I/R) injury can lead to severe dysfunction, and its treatment is difficult. It is reported that nucleotide-binding domain and leucine-rich repeat family protein 3 (NLRP3) inflammasome-mediated cell pyroptosis is an important part of cerebral I/R injury and the activation of autophagy can inhibit pyroptosis in some tissue injury. Our previous study found that the protective effects of bone marrow mesenchymal stem cells (BMSCs) in cerebral I/R injury may be associated with the regulation of autophagy. Recent studies have demonstrated that exosomes secreted from BMSCs (BMSC-Exos) may play an essential role in the effective biological performance of BMSCs and the protective mechanism of BMSC-Exos is associated with the activation of autophagy and the remission of inflammation, but it has not been reported in studies of cerebral I/R injury. We aimed to investigate the effects of BMSC-Exos on cerebral I/R injury and determine if the mechanism is associated with the regulation of pyroptosis and autophagic flux. Method: PC12 cells were subjected to oxygen-glucose deprivation/reoxygenation (OGD/R) to induce cerebral I/R in vitro and were cocultured with BMSC-Exos. Cell viability was determined with CCK-8 and lactate dehydrogenase (LDH) detection kits. Scanning electron microscopy (SEM), Hoechst 33342/propidium iodide (PI) double staining, 2′,7′-dichlorodihydrofluorescein diacetate assay, immunofluorescence, Western blot, and Enzyme-linked immunosorbent assay (ELISA) were used to detect cell pyroptosis. Furthermore, transmission electron microscopy (TEM), GFP-RFP-LC3 adenovirus transfection, and Western blot were used to detect autophagic flux and its influence on pyroptosis. Finally, coimmunoprecipitation was used to detect the binding interaction between NLRP3 and LC3. Results: BMSC-Exos increased cell viability in OGD/R. The inhibitory effect of BMSC-Exos on pyroptosis was comparable to the NLRP3 inhibitor MCC950 and was reversed by NLRP3 overexpression. Furthermore, BMSC-Exos promoted autophagic flux through the AMP-activated kinase (AMPK)/mammalian target of the rapamycin pathway, whereas chloroquine, AMPK silencing, and compound C blocked the inhibitory effect on pyroptosis. Conclusions: BMSC-Exos can protect PC12 cells against OGD/R injury via attenuation of NLRP3 inflammasome-mediated pyroptosis by promoting AMPK-dependent autophagic flux.
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Affiliation(s)
- Qing Zeng
- Department of Rehabilitation Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, China.,Rehabilitation Medical School, Southern Medical University, Guangzhou, China
| | - Yuqing Zhou
- Department of Rehabilitation Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, China.,Rehabilitation Medical School, Southern Medical University, Guangzhou, China
| | - Donghui Liang
- Department of Traditional Chinese Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - He He
- Department of Rehabilitation Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, China.,Rehabilitation Medical School, Southern Medical University, Guangzhou, China
| | - Xiaoli Liu
- Department of Rehabilitation Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, China.,Rehabilitation Medical School, Southern Medical University, Guangzhou, China
| | - Rui Zhu
- Department of Rehabilitation Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, China.,Rehabilitation Medical School, Southern Medical University, Guangzhou, China
| | - Meimei Zhang
- Department of Rehabilitation Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, China.,Rehabilitation Medical School, Southern Medical University, Guangzhou, China
| | - Xun Luo
- Kerry Rehabilitation Medicine Research Institute, Shenzhen, China.,Shenzhen Sanming Project Group, Spaulding Rehabilitation Hospital, Harvard Medical School, Charlestown, MA, United States
| | - Yao Wang
- Department of Rehabilitation Medicine, Shenzhen Dapeng New District Nan'ao People's Hospital, Shenzhen, China
| | - Guozhi Huang
- Department of Rehabilitation Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, China.,Rehabilitation Medical School, Southern Medical University, Guangzhou, China
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18
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Zheng AQ, Hao YN, Guo TT, Shu Y, Wang JH. A fluorescence imaging protocol for correlating intracellular free cationic copper to the total uptaken copper by live cells. Talanta 2020; 220:121355. [PMID: 32928391 DOI: 10.1016/j.talanta.2020.121355] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 06/22/2020] [Accepted: 06/24/2020] [Indexed: 01/26/2023]
Abstract
A variety of fluorescence probes have been developed for fluorescence imaging of metals in biological cells. However, accurate quantification of metals with fluorescent approaches is challenging due to the difficulty in establishing a standard calibration curve in living cells. Herein, a fluorescence imaging protocol is developed for imaging intracellular Cu2+ and its correlation with the cellular uptake of copper. The total amount of intracellular Cu is detected by inductively coupled plasma mass spectrometry (ICP-MS) in parallel. Fluorescence imaging of Cu2+ is accomplished with Rhodamine B derivative modified carbon dots (CDs-Rbh) based on fluorescence resonance energy transfer (FRET) from CDs to rhodamine. Intracellular Cu2+ is correlated with fluorescence ratio at λem 500-600 nm (rhodamine) to λem 425-475 nm (CDs) with excitation at λex 405 nm. It is found that Cu2+ is linearly correlated with the total intracellular uptaken copper content, with a linear correlation between the relative fluorescence ratio in fluorescence imaging and intracellular Cu derived from ICP-MS, including both Cu(I) and Cu(II) species. The linear calibration equation is lg(F2/F1) = 0.00148 m[Cu]-0.3622. This approach facilitates further investigation and elucidation of copper transition in live cells and the evaluation of their cytotoxicity.
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Affiliation(s)
- An-Qi Zheng
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, China
| | - Ya-Nan Hao
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, China
| | - Ting-Ting Guo
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, China
| | - Yang Shu
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, China.
| | - Jian-Hua Wang
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, China.
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19
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Gu H, Guo Y, Xiao X, Li C, Shi G, He J. Double molecular recognition strategy based on boronic acid–diol and NHS ester–amine for selective electrochemical detection of cerebral dopamine. Anal Bioanal Chem 2020; 412:3727-3736. [DOI: 10.1007/s00216-020-02624-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 03/14/2020] [Accepted: 03/27/2020] [Indexed: 10/24/2022]
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20
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Jiang Y, Xiao X, Li C, Luo Y, Chen S, Shi G, Han K, Gu H. Facile Ratiometric Electrochemical Sensor for In Vivo/Online Repetitive Measurements of Cerebral Ascorbic Acid in Brain Microdiaysate. Anal Chem 2020; 92:3981-3989. [PMID: 32037799 DOI: 10.1021/acs.analchem.9b05484] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The in vivo monitoring of ascorbic acid (AA) following physiological and pathological events is of great importance because AA plays a critical role in brain functions. The conventional electrochemical sensors (ECSs) usually suffered from poor selectivity and sluggish electron transfer kinetics for cerebral AA oxidation. The exploitation of ECSs adapt to the electrochemical detection (ECD)-microdialysis system, here we reported a facile ratiometric electrochemical sensor (RECS) for in vivo/online repetitive measurements of cerebral AA in brain microdiaysate. The sensor were constructed by careful electrodeposition of graphene oxide (GO) onto glassy carbon (GC) electrodes. Methylene blue (MB) was electrostatically adsorbed onto the GO surface as a built-in reference to achieve ratiometric detection of AA. The subsequent proper electroreduction treatment was able to readily facilitate the oxidation of AA at a relatively negative potential (-100 mV) and the oxidation of MB at separated potential (-428 mV). The in vitro experiments demonstrated that the RECS exhibited high sensitivity (detection limit: 10 nM), selectivity, and stability toward AA determination, enabling the in vivo/online repetitive measurement of cerebral AA in brain microdiaysate with high reliability. As a result, the designed RECS was successfully applied in the ECD-microdialysis system to in vivo/online repetitive monitoring the dynamic change of cerebral AA in the progress of the global cerebral ischemia/reperfusion events. More, the microinjection of endogenous AA and AA oxidase (AAOx) verified the reliability of the proposed RECS for in vivo/online repetitive cerebral AA detection. This proposed sensor filled the gap that no rational electrochemical sensor has been developed for the ECD-microdialysis system since its creation by the Mao group in 2005, which provided a reliable and effective method for brain chemistry research.
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Affiliation(s)
- Yimin Jiang
- 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
| | - Xia Xiao
- 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
| | - Chenchen Li
- 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
| | - 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
| | - 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
| | - Guoyue Shi
- School of Chemistry and Molecular Engineering, Shanghai Key Laboratory for Urban Ecological Processes and Eco-Restoration, East China Normal University, 500 Dongchuan Road, Shanghai 200241, P. R. China
| | - Kai Han
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, 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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21
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Ding S, Xu Y, Liu Q, Gu H, Zhu A, Shi G. Interface engineering of microelectrodes toward ultrasensitive monitoring of β-amyloid peptides in cerebrospinal fluid in Alzheimer's disease. Analyst 2020; 145:2331-2338. [DOI: 10.1039/c9an02285f] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Aβ monomers directed the assembly of Cu2+-PEI/AuNPs-hemin nanoprobes into network aggregates on a microelectrode interface for enhanced electrochemical analysis.
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Affiliation(s)
- Shushu Ding
- School of Chemistry and Molecular Engineering
- Shanghai Key Laboratory for Urban Ecological Processes and Eco-Restoration
- East China Normal University
- Shanghai 200241
- People's Republic of China
| | - Yunxia Xu
- School of Chemistry and Molecular Engineering
- Shanghai Key Laboratory for Urban Ecological Processes and Eco-Restoration
- East China Normal University
- Shanghai 200241
- People's Republic of China
| | - Qi Liu
- School of Chemistry and Molecular Engineering
- Shanghai Key Laboratory for Urban Ecological Processes and Eco-Restoration
- East China Normal University
- Shanghai 200241
- People's Republic of China
| | - Hui Gu
- School of Chemistry and Chemical Engineering
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education
- Hunan University of Science and Technology
- Xiangtan
- People's Republic of China
| | - Anwei Zhu
- School of Chemistry and Molecular Engineering
- Shanghai Key Laboratory for Urban Ecological Processes and Eco-Restoration
- East China Normal University
- Shanghai 200241
- People's Republic of China
| | - Guoyue Shi
- School of Chemistry and Molecular Engineering
- Shanghai Key Laboratory for Urban Ecological Processes and Eco-Restoration
- East China Normal University
- Shanghai 200241
- People's Republic of China
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22
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Peng Q, Yan X, Shi X, Ou S, Gu H, Yin X, Shi G, Yu Y. In vivo monitoring of superoxide anion from Alzheimer's rat brains with functionalized ionic liquid polymer decorated microsensor. Biosens Bioelectron 2019; 144:111665. [DOI: 10.1016/j.bios.2019.111665] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 08/27/2019] [Accepted: 08/29/2019] [Indexed: 02/06/2023]
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23
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Gu H, Xiong P, Tang H, Chen S, Long Y, Shi G. In vivo monitoring of cerebral glucose with an updated on-line electroanalytical system. Anal Bioanal Chem 2019; 411:5929-5935. [DOI: 10.1007/s00216-019-02002-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 06/05/2019] [Accepted: 06/26/2019] [Indexed: 01/05/2023]
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