1
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Shen T, Wang X, Ni J, Ma L, Zhang L, Wang C, Huang G. Pinecone derived hierarchical carbon nanostructure as a transducer in a solid-state ion-selective electrode for in vivo analysis of calcium ion. Anal Chim Acta 2024; 1305:342590. [PMID: 38677844 DOI: 10.1016/j.aca.2024.342590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 04/06/2024] [Accepted: 04/07/2024] [Indexed: 04/29/2024]
Abstract
Monitoring extracellular calcium ion (Ca2+) chemical signals in neurons is crucial for tracking physiological and pathological changes associated with brain diseases in live animals. Potentiometry based solid-state ion-selective electrodes (ISEs) with the assist of functional carbon nanomaterials as ideal solid-contact layer could realize the potential response for in vitro and in vivo analysis. Herein, we employ a kind of biomass derived porous carbon as a transducing layer to prompt efficient ion to electron transduction while stabilizes the potential drift. The eco-friendly porous carbon after activation (APB) displays a high specific area with inherit macropores, micropores, and large specific capacitance. When employed as transducer in ISEs, a stable potential response, minimized potential drift can be obtained. Benefiting from these excellent properties, a solid-state Ca2+ selective carbon fiber electrodes (CFEs) with a sandwich structure is constructed and employed for real time sensing of Ca2+ under electrical stimulation. This study presents a new approach to develop sustainable and versatile transducers in solid-state ISEs, a crucial way for in vivo sensing.
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Affiliation(s)
- Tongjun Shen
- College of New Energy and Materials, State Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), Beijing, 102249, China
| | - Ximin Wang
- College of New Energy and Materials, State Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), Beijing, 102249, China; CNOOC Tianjin Chemical Research and Design Institute Co. Ltd., Tianjin, 300131, China
| | - Jiping Ni
- College of New Energy and Materials, State Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), Beijing, 102249, China; College of Chemistry, Beijing Normal University, Beijing, 100875, China
| | - Ling Ma
- College of New Energy and Materials, State Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), Beijing, 102249, China
| | - Lifu Zhang
- College of New Energy and Materials, State Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), Beijing, 102249, China
| | - Chunxia Wang
- College of New Energy and Materials, State Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), Beijing, 102249, China.
| | - Guoyong Huang
- College of New Energy and Materials, State Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), Beijing, 102249, China.
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2
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Da Y, Sun Q, Zhang L, Tian Y. Light-activated g-C 3N 4 photoelectrodes with a selective molecular sieve for in vivo quantification of oxygen levels in the living mouse brain. Chem Commun (Camb) 2024. [PMID: 38465876 DOI: 10.1039/d4cc00246f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
A novel micro-photoelectrode with a selective molecular sieve was created for in vivo monitoring of O2 levels in the mouse brain. An ITO optical fiber modified by graphitized carbon nitride (g-C3N4) in situ was employed as the light activated substrate to provide rich photo-induced electrons for the catalytic reduction of O2. Meanwhile, the porous hybrid layer composed of zeolitic imidazolate framework-8 and polysulfone was constructed over the g-C3N4 surface as the molecular sieve to synergically enhance the selectivity of O2 detections. By advantage of this useful tool, the real time variation of the O2 level was successfully determined in the mouse brain upon ischemia.
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Affiliation(s)
- Yifan Da
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, School of Chemistry and Molecular Engineering, East China Normal University, Dongchuan Road 500, Shanghai 200241, China.
| | - Qi Sun
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, School of Chemistry and Molecular Engineering, East China Normal University, Dongchuan Road 500, Shanghai 200241, China.
| | - Limin Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, School of Chemistry and Molecular Engineering, East China Normal University, Dongchuan Road 500, Shanghai 200241, China.
| | - Yang Tian
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, School of Chemistry and Molecular Engineering, East China Normal University, Dongchuan Road 500, Shanghai 200241, China.
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3
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Cong XZ, Feng J, Zhang HJ, Zhang LZ, Lin TY, Chen G, Zhang ZL. Microfluidic Device-Based In Vivo Detection of PD-L1-Positive Small Extracellular Vesicles and Its Application for Tumor Monitoring. Anal Chem 2024; 96:2658-2665. [PMID: 38311857 DOI: 10.1021/acs.analchem.3c05418] [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: 02/06/2024]
Abstract
Liquid biopsy is of great significance in tumor early diagnosis and treatment stratification. PD-L1-positive small extracellular vesicles (PD-L1+ sEVs) are closely related to tumor growth and immunotherapy response, which are considered valuable liquid biopsy biomarkers. In contrast to conventional in vitro detection, in vivo detection has the ability to improve the detection efficiency and enable continuous or real-time dynamic monitoring. However, in vivo detection of PD-L1+ sEVs has multiple difficulties, such as high cell background, complex blood environments, and lack of a specific and stable detection method. Herein, the in vivo detection of PD-L1+ sEVs method was constructed, which efficiently separated sEVs based on the microfluidic device and quantitatively analyzed PD-L1+ sEVs by aptamer recognition and hybridization chain reaction. The concentration of PD-L1+ sEVs was continuously monitored, and significant differences at different stages of tumor as well as a correlation with tumor volume were found. Diseased and healthy individuals could also be effectively distinguished based on the concentration of PD-L1+ sEVs. The method with good stability, biocompatibility, and detection performance provided a powerful means for in vivo detection of PD-L1+ sEVs, contributing to the clinical diagnosis and treatment of tumor.
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Affiliation(s)
- Xi-Zhu Cong
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Jiao Feng
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - He-Jing Zhang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine of Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan 430079, P. R. China
| | - Lin-Zhou Zhang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine of Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan 430079, P. R. China
| | - Tian-Yang Lin
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Gang Chen
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine of Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan 430079, P. R. China
| | - Zhi-Ling Zhang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China
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4
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Chen M, Qin Y, Fan WT, Yan J, Hong F, Huang WH, Liu YL. Three-Dimensional Stretchable Sensor-Hydrogel Integrated Platform for Cardiomyocyte Culture and Mechanotransduction Monitoring. Anal Chem 2023; 95:12859-12866. [PMID: 37589391 DOI: 10.1021/acs.analchem.3c02151] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/18/2023]
Abstract
Cardiomyocytes are responsible for generating contractile force to pump blood throughout the body and are very sensitive to mechanical forces and can initiate mechano-electric coupling and mechano-chemo-transduction. Remarkable progress has been made in constructing heart tissue by engineered three-dimensional (3D) culture models and in recording the electrical signals of cardiomyocytes. However, it remains a severe challenge for real-time acquiring of the transient biochemical information in cardiomyocyte mechano-chemo-transduction. Herein, we reported a multifunctional platform by integrating a 3D stretchable electrochemical sensor with collagen hydrogel for the culture, electrical stimulation, and electrochemical monitoring of cardiomyocytes. The 3D stretchable electrochemical sensor was prepared by assembling functionalized conductive polymer PEDOT:PSS on an elastic scaffold, which showed excellent electrochemical sensing performance and stability under mechanical deformations. The integration of a 3D stretchable electrochemical sensor with collagen hydrogel provided an in vivo-like microenvironment for cardiomyocyte culture and promoted cell orientation via in situ electrical stimulation. Furthermore, this multifunctional platform allowed real-time monitoring of stretch-induced H2O2 release from cardiomyocytes under their normal and pathological conditions, as well as pharmacological interventions.
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Affiliation(s)
- Ming Chen
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Yu Qin
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Wen-Ting Fan
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Jing Yan
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Feng Hong
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Wei-Hua Huang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Yan-Ling Liu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
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5
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Zhao Y, Jin KQ, Li JD, Sheng KK, Huang WH, Liu YL. Flexible and Stretchable Electrochemical Sensors for Biological Monitoring. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023:e2305917. [PMID: 37639636 DOI: 10.1002/adma.202305917] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 08/23/2023] [Indexed: 08/31/2023]
Abstract
The rise of flexible and stretchable electronics has revolutionized biosensor techniques for probing biological systems. Particularly, flexible and stretchable electrochemical sensors (FSECSs) enable the in situ quantification of numerous biochemical molecules in different biological entities owing to their exceptional sensitivity, fast response, and easy miniaturization. Over the past decade, the fabrication and application of FSECSs have significantly progressed. This review highlights key developments in electrode fabrication and FSECSs functionalization. It delves into the electrochemical sensing of various biomarkers, including metabolites, electrolytes, signaling molecules, and neurotransmitters from biological systems, encompassing the outer epidermis, tissues/organs in vitro and in vivo, and living cells. Finally, considering electrode preparation and biological applications, current challenges and future opportunities for FSECSs are discussed.
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Affiliation(s)
- Yi Zhao
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Kai-Qi Jin
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Jing-Du Li
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Kai-Kai Sheng
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Wei-Hua Huang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Yan-Ling Liu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
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6
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Qin Y, Zhang X, Song Y, Zhong B, Liu L, Wang D, Zhang Y, Lu W, Zhao X, Jia Z, Li M, Zhang L, Qing G. A highly sensitive nanochannel device for the detection of SUMO1 peptides. Chem Sci 2023; 14:8360-8368. [PMID: 37564410 PMCID: PMC10411628 DOI: 10.1039/d3sc02140h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Accepted: 07/13/2023] [Indexed: 08/12/2023] Open
Abstract
SUMOylation is an important and highly dynamic post-translational modification (PTM) process of protein, and its disequilibrium may cause various diseases, such as cancers and neurodegenerative disorders. SUMO proteins must be accurately detected to understand disease states and develop effective drugs. Reliable antibodies against SUMO2/3 are commercially available; however, efficient detectors are yet to be developed for SUMO1, which has only 50% homology with SUMO2 and SUMO3. Here, using phage display technology, we identified two cyclic peptide (CP) sequences that could specifically bind to the terminal dodecapeptide sequence of SUMO1. Then we combined the CPs and polyethylene terephthalate conical nanochannel films to fabricate a nanochannel device highly sensitive towards the SUMO1 terminal peptide and protein; sensitivity was achieved by ensuring marked variations in both transmembrane ionic current and Faraday current. The satisfactory SUMO1-sensing ability of this device makes it a promising tool for the time-point monitoring of the SENP1 enzyme-catalyzed de-SUMOylation reaction and cellular imaging. This study not only solves the challenge of SUMO1 precise recognition that could promote SUMO1 proteomics analysis, but also demonstrates the good potential of the nanochannel device in monitoring of enzymes and discovery of effective drugs.
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Affiliation(s)
- Yue Qin
- College of Pharmaceutical and Biological Engineering, Shenyang University of Chemical Technology No. 11 Street, Economic and Technological Development Zone Shenyang 110142 P. R. China
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 P. R. China
| | - Xiaoyu Zhang
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 P. R. China
| | - Yanling Song
- College of Pharmaceutical and Biological Engineering, Shenyang University of Chemical Technology No. 11 Street, Economic and Technological Development Zone Shenyang 110142 P. R. China
| | - Bowen Zhong
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 P. R. China
| | - Lu Liu
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 P. R. China
| | - Dongdong Wang
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 P. R. China
| | - Yahui Zhang
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 P. R. China
| | - Wenqi Lu
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 P. R. China
| | - Xinjia Zhao
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 P. R. China
| | - Zhiqi Jia
- College of Pharmaceutical and Biological Engineering, Shenyang University of Chemical Technology No. 11 Street, Economic and Technological Development Zone Shenyang 110142 P. R. China
| | - Minmin Li
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 P. R. China
| | - Lihua Zhang
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 P. R. China
| | - Guangyan Qing
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 P. R. China
- College of Chemistry and Chemical Engineering, Wuhan Textile University 1 Sunshine Road Wuhan 430200 P. R. China
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7
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Liu Y, Liu Z, Zhou Y, Tian Y. Implantable Electrochemical Sensors for Brain Research. JACS AU 2023; 3:1572-1582. [PMID: 37388703 PMCID: PMC10301805 DOI: 10.1021/jacsau.3c00200] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 05/19/2023] [Accepted: 05/22/2023] [Indexed: 07/01/2023]
Abstract
Implantable electrochemical sensors provide reliable tools for in vivo brain research. Recent advances in electrode surface design and high-precision fabrication of devices led to significant developments in selectivity, reversibility, quantitative detection, stability, and compatibility of other methods, which enabled electrochemical sensors to provide molecular-scale research tools for dissecting the mechanisms of the brain. In this Perspective, we summarize the contribution of these advances to brain research and provide an outlook on the development of the next generation of electrochemical sensors for the brain.
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Affiliation(s)
- Yuandong Liu
- Shanghai
Key Laboratory of Green Chemistry and Chemical Processes, Department
of Chemistry, School of Chemistry and Molecular Engineering, East China Normal University, Dongchuan Road 500, Shanghai 200241, People’s Republic of China
| | - Zhichao Liu
- Shanghai
Key Laboratory of Green Chemistry and Chemical Processes, Department
of Chemistry, School of Chemistry and Molecular Engineering, East China Normal University, Dongchuan Road 500, Shanghai 200241, People’s Republic of China
| | - Yi Zhou
- School
of Basic Medical Sciences, Chengdu University
of Traditional Chinese Medicine, Sichuan 611137, People’s Republic of China
| | - Yang Tian
- Shanghai
Key Laboratory of Green Chemistry and Chemical Processes, Department
of Chemistry, School of Chemistry and Molecular Engineering, East China Normal University, Dongchuan Road 500, Shanghai 200241, People’s Republic of China
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8
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Wei H, Li L, Xue Y, Yu P, Mao L. Stability Enhancement of Galvanic Redox Potentiometry by Optimizing the Redox Couple in Counterpart Poles. Anal Chem 2023; 95:8232-8238. [PMID: 37201512 DOI: 10.1021/acs.analchem.3c00110] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Potentiometry based on the galvanic cell mechanism, i.e., galvanic redox potentiometry (GRP), has recently emerged as a new tool for in vivo neurochemical sensing with high neuronal compatibility and good sensing property. However, the stability of open circuit voltage (EOC) outputting remains to be further improved for in vivo sensing application. In this study, we find that the EOC stability could be enhanced by adjusting the sort and the concentration ratio of the redox couple in the counterpart pole (i.e., indicating electrode) of GRP. With dopamine (DA) as the sensing target, we construct a spontaneously powered single-electrode-based GRP sensor (GRP2.0) and investigate the correlation between the stability and the redox couple used in the counterpart pole. Theoretical consideration suggests that the EOC drift is minimum when the concentration ratio of the oxidized form (O1) to the reduced form (R1) of the redox species in the backfilled solution is 1:1. The experimental results demonstrate that, compared with other redox species (i.e., dissolved O2 at 3 M KCl, potassium ferricyanide (K3Fe(CN)6), and hexaammineruthenium(III) chloride (Ru(NH3)6Cl3)) used as the counterpart pole, potassium hexachloroiridate(IV) (K2IrCl6) exhibits better chemical stability and outputs more stable EOC. As a result, when IrCl62-/3- with the concentration ratio of 1:1 is used as the counterpart, GRP2.0 displays not only an excellent EOC stability (i.e., 3.8 mV drifting during 2200 s for in vivo recording) but also small electrode-to-electrode variation (i.e., the maximum EOC variation between four electrodes is 2.7 mV). Upon integration with the electrophysiology, GRP2.0 records a robust DA release, accompanied by a burst of neural firing, during the optical stimulation. This study paves a new avenue to stable neurochemical sensing in vivo.
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Affiliation(s)
- Huan Wei
- College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Lijuan Li
- Department of Otorhinolaryngology, Peking University Third Hospital, Beijing 100191, China
| | - Yifei Xue
- College of Chemistry, Beijing Normal University, 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
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lanqun Mao
- College of Chemistry, Beijing Normal University, Beijing 100875, China
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9
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Yin Y, Zeng H, Zhang S, Gao N, Liu R, Cheng S, Zhang M. Hydrogel-Coated Microelectrode Resists Protein Passivation of In Vivo Amperometric Sensors. Anal Chem 2023; 95:3390-3397. [PMID: 36725686 DOI: 10.1021/acs.analchem.2c04806] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Passivation of electrodes caused by nonspecific adsorption of protein can dramatically reduce sensing sensitivity and accuracy, which is a great challenge for in vivo neurochemical monitoring. However, most antipassivation strategies are not suitable to carbon fiber microelectrodes (CFMEs) for in vivo measurement, and these methods also do not work on electrochemical biosensors that fix biometric elements. In this study, we demonstrate that chitosan hydrogel-coated microelectrodes can avoid the current passivation caused by protein adsorption on the surface of carbon fiber because the chitosan hydrogel prepared by local pH gradient caused by hydrogen evolution reaction has three-dimensional networks containing large amounts of water. The highly hydrophilic three-dimensional structure of hydrogel not only forms a biocompatible interface to confine enzymes but also keeps the fast mass transfer of analytes, such as dopamine, ascorbic acid, and glucose. The consistency of the precalibration and postcalibration of the prepared sensor enables in vivo amperometric detection of both electroactive species based on their redox property and electroinactive species based on the enzyme. This study provides a simple and versatile strategy to constitute an amperometric sensor interface to resist passivation of protein adsorption in a complex biological environment such as the brain.
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Affiliation(s)
- Yongyue Yin
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Hui Zeng
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Shuai Zhang
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Nan Gao
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Rantong Liu
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Shuwen Cheng
- 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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10
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Yin Y, Zeng H, Wang HM, Zhang M. Biocompatible Microelectrode for In Vivo Sensing with Improved Performance. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:1719-1729. [PMID: 36689914 DOI: 10.1021/acs.langmuir.2c03267] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
In vivo sensing based on implantable microelectrodes has been widely used to monitor neurochemicals due to its high spatial and temporal resolution and engineering interface designability, which has become a powerful drive to decode the mysteries of degenerative diseases and regulate neural activity. Over the past few decades, with the development of a variety of advanced materials and technologies, encouraging progress has been made in quantifying various neurochemical transients. However, because of the complex chemical atmosphere including thousands of small and large biomolecules and the inherent low mechanical property of brain tissue, the design of a compatible microelectrode for the in vivo electrochemical tracking of neurochemicals with high selectivity and stability still faces great challenges. This Perspective presents a brief account of recent representative progress in the rational regulation of the microelectrode interface to resolve the questions of selectivity and sensitive decrease resulting from antiprotein adsorption, and how to decrease the mechanical mismatch of an implanted electrode with that of brain tissue. Possible future research directions on further addressing the above key issues and a more biocompatible microelectrode for in vivo long-time electrochemical analysis are also discussed.
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Affiliation(s)
- Yongyue Yin
- Department of Chemistry, Renmin University of China, Beijing 100872, P. R. China
| | - Hui Zeng
- Department of Chemistry, Renmin University of China, Beijing 100872, P. R. China
| | - Hui-Ming Wang
- 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
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11
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Wang S, Liu Y, Zhu A, Tian Y. In Vivo Electrochemical Biosensors: Recent Advances in Molecular Design, Electrode Materials, and Electrochemical Devices. Anal Chem 2023; 95:388-406. [PMID: 36625112 DOI: 10.1021/acs.analchem.2c04541] [Citation(s) in RCA: 23] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Electrochemical biosensors provide powerful tools for dissecting the dynamically changing neurochemical signals in the living brain, which contribute to the insight into the physiological and pathological processes of the brain, due to their high spatial and temporal resolutions. Recent advances in the integration of in vivo electrochemical sensors with cross-disciplinary advances have reinvigorated the development of in vivo sensors with even better performance. In this Review, we summarize the recent advances in molecular design, electrode materials, and electrochemical devices for in vivo electrochemical sensors from molecular to macroscopic dimensions, highlighting the methods to obtain high performance for fulfilling the requirements for determination in the complex brain through flexible and smart design of molecules, materials, and devices. Also, we look forward to the development of next-generation in vivo electrochemical biosensors.
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Affiliation(s)
- Shidi Wang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, School of Chemistry and Molecular Engineering, East China Normal University, Dongchuan Road 500, Shanghai 200241, China
| | - Yuandong Liu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, School of Chemistry and Molecular Engineering, East China Normal University, Dongchuan Road 500, Shanghai 200241, China
| | - Anwei Zhu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, School of Chemistry and Molecular Engineering, East China Normal University, Dongchuan Road 500, Shanghai 200241, China
| | - Yang Tian
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, School of Chemistry and Molecular Engineering, East China Normal University, Dongchuan Road 500, Shanghai 200241, China
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12
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Wu F, Yu P, Mao L. Multi-Spatiotemporal Probing of Neurochemical Events by Advanced Electrochemical Sensing Methods. Angew Chem Int Ed Engl 2023; 62:e202208872. [PMID: 36284258 DOI: 10.1002/anie.202208872] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Indexed: 11/05/2022]
Abstract
Neurochemical events involving biosignals of different time and space dimensionalities constitute the complex basis of neurological functions and diseases. In view of this fact, electrochemical measurements enabling real-time quantification of neurochemicals at multiple levels of spatiotemporal resolution can provide informative clues to decode the molecular networks bridging vesicles and brains. This Minireview focuses on how scientific questions regarding the properties of single vesicles, neurotransmitter release kinetics, interstitial neurochemical dynamics, and multisignal interconnections in vivo have driven the design of electrochemical nano/microsensors, sensing interface engineering, and signal/data processing. An outlook for the future frontline in this realm will also be provided.
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Affiliation(s)
- Fei Wu
- College of Chemistry, Beijing Normal University, Beijing, 100875, China.,Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, 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, Chinese Academy of Sciences, Beijing, 100190, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Lanqun Mao
- College of Chemistry, Beijing Normal University, Beijing, 100875, China
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