1
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Zhang S, Qin H, Cheng S, Zhang Y, Gao N, Zhang M. An Electrochemical Nanosensor for Monitoring the Dynamics of Intracellular H 2 O 2 Upon NADH Treatment. Angew Chem Int Ed Engl 2023; 62:e202300083. [PMID: 36807970 DOI: 10.1002/anie.202300083] [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: 01/03/2023] [Revised: 02/13/2023] [Accepted: 02/20/2023] [Indexed: 02/22/2023]
Abstract
Reactive oxygen species (ROS)-based therapeutic strategies play an important role in cancer treatment. However, in situ, real-time and quantitative analysis of intracellular ROS in cancer treatment for drug screening is still a challenge. Herein we report one selective hydrogen peroxide (H2 O2 ) electrochemical nanosensor, which is prepared by electrodeposition of Prussian blue (PB) and polyethylenedioxythiophene (PEDOT) onto carbon fiber nanoelectrode. With the nanosensor, we find that the level of intracellular H2 O2 increases with NADH treatment and that increase is dose-dependent to the concentration of NADH. High-dose of NADH (above 10 mM) can induce cell death and intratumoral injection of NADH is validated for inhibiting tumor growth in mice. This study highlights the potential of electrochemical nanosensor for tracking and understanding the role of H2 O2 in screening new anticancer drug.
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Affiliation(s)
- Shuai Zhang
- Department of Chemistry, Renmin University of China, Beijing, 100872, China
| | - Hancheng Qin
- Department of Chemistry, Renmin University of China, Beijing, 100872, China
| | - Shuwen Cheng
- Department of Chemistry, Renmin University of China, Beijing, 100872, China
| | - Yue Zhang
- Department of Chemistry, Renmin University of China, Beijing, 100872, China
| | - Nan Gao
- 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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2
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Tong Y, Wang L, Song J, Zhang M, Qi H, Ding S, Qi H. Self-Terminated Electroless Deposition of Surfactant-Free and Monodispersed Pt Nanoparticles on Carbon Fiber Microelectrodes for Sensitive Detection of H 2O 2 Released from Living Cells. Anal Chem 2021; 93:16683-16689. [PMID: 34860503 DOI: 10.1021/acs.analchem.1c04299] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
We report a self-terminated electroless deposition method to prepare surfactant-free and monodispersed Pt nanoparticle (NP)-modified carbon fiber microelectrodes (Pt NP/CFEs) for electrochemical detection of hydrogen peroxide (H2O2) released from living cells. The surfactant-free and monodispersed Pt NPs with a uniform size of 65 nm are spontaneously deposited on a CFE surface by immersing an exposed carbon fiber (CF) of CFE in the PtCl42- solution, in which an exposed CF can be used as the reducing agent and stabilizer. A self-terminated electroless deposition method is demonstrated, in which the density and size of Pt NPs on a CFE surface do not increase when the reaction time increases from 20 to 60 min. The self-terminated electroless deposition process not only can effectively avoid any manual electrode modification and thus largely minimize person-to-person and electrode-to-electrode deviations but also can avoid the use of any extra reductant or surfactant in the fabrication process. Therefore, Pt NPs/CFEs, with good reproducibility and sensitivity, not only exhibit high electrocatalytic activity toward the oxidation of H2O2 but also maintain the spatial resolution of CFEs. Moreover, Pt NPs/CFEs can detect H2O2 with a wide linear range of 0.5-80 μM and a low detection limit of 0.17 μM and then can be successfully applied in the monitoring of H2O2 released from RAW 264.7 cells. The self-terminated electroless deposition method can also be extended to selectively prepare other metal NP-modified CFEs, such as Au NPs/CFEs or Ag NPs/CFEs, by choosing the metal ions with higher reduction potential as precursors. This work provides a simple, straightforward, and general method for the preparation of small, surfactant-free, and monodispersed metal NP-modified CFEs with high sensitivity, reproducibility, and spatial resolution.
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Affiliation(s)
- Yuxi Tong
- School of Chemistry, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
| | - Lifen Wang
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, People's Republic of China
| | - Jiajia Song
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, People's Republic of China
| | - Mengyue Zhang
- School of Chemistry, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
| | - Hetong Qi
- School of Chemistry, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
| | - Shujiang Ding
- School of Chemistry, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
| | - Honglan Qi
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, People's Republic of China
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3
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Xiao J, Tian M, Su L, Bao Y, Niu L, Zhang X. Detection of the effect of polydopamine (PDA)-coated polydimethylsiloxane (PDMS) substrates on the release of H 2O 2 from a single HeLa cell. Analyst 2021; 146:6445-6449. [PMID: 34585688 DOI: 10.1039/d1an01506k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Endogenous H2O2 generated by a single HeLa cell that was adhered on the PDA-coated PDMS substrates under 25 mM glucose culture conditions was detected using a home-built photoelectric dual detection platform. With PMA as the stimulus, the cell released a small amount of H2O2 and its mitochondrial membrane potential (MMP) decrease was smaller, compared with that on the PDMS substrates.
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Affiliation(s)
- Jingyu Xiao
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
| | - Meng Tian
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
| | - Lei Su
- School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen 518037, P.R. China, P. R. China.
| | - Yu Bao
- Center for Advanced Analytical Science, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, P. R. China.
| | - Li Niu
- Center for Advanced Analytical Science, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, P. R. China.
| | - Xueji Zhang
- School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen 518037, P.R. China, P. R. China.
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4
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Cao M, Wang H, Tang H, Zhao D, Li Y. Enzyme-Encapsulated Zeolitic Imidazolate Frameworks Formed Inside the Single Glass Nanopore: Catalytic Performance and Sensing Application. Anal Chem 2021; 93:12257-12264. [PMID: 34459201 DOI: 10.1021/acs.analchem.1c01790] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Metal-organic frameworks (MOFs) can improve the stability and activity of enzymes under the MOF encapsulation. However, it remains a challenge to explore the effects of the MOF environment on enzymatic activity in a confined space. In this work, we immobilized the enzyme inside a glass nanopore to study the catalytic activity and stability of the enzyme in the MOF environment. Horseradish peroxidase (HRP) is encapsulated in zeolitic imidazolate framework-90 (ZIF-90) and zeolitic imidazolate framework-8 (ZIF-8), which are used as the catalytic platforms. The HRP can catalyze 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid)diammonium salt (ABTS) molecules to generate ABTS+ ions, and the change of the transmembrane ion current will be monitored in real time. As the concentration of H2O2 increases, the amount of produced ABTS+ will increase; thus, the ionic current increases. The effects of the MOF structure on enzyme activity and stability are also investigated. The HRP encapsulated in the MOF and modified inside the nanopore provides a novel and unlabeled design for studying enzymatic catalysis in a confined environment, which should have extensive applications in chemical-/bio-sensing, electrocatalysis, and fundamental electrochemistry.
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Affiliation(s)
- Mengya Cao
- Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China
| | - Hao Wang
- Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China
| | - Haoran Tang
- Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China
| | - Dandan Zhao
- Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China
| | - Yongxin Li
- Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China
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5
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Electroless deposition of gold nanoparticles on carbon nanopipette electrode for electrochemical detection of catecholamines released from PC12 cells. Mikrochim Acta 2020; 187:595. [PMID: 33033924 DOI: 10.1007/s00604-020-04569-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 09/25/2020] [Indexed: 10/23/2022]
Abstract
An electroless deposition method is reported for the fabrication of gold nanoparticles (Au NPs) modified carbon nanopipette electrode (CNPE) for sensitive electrochemical detection of dopamine (DA) in aqueous solution and catecholamines released from PC12 cells. A CNPE is fabricated by chemical vapor deposition with a carbon layer onto nanocapillary and then contacted with copper (Cu) wire. Cu wire of CNPE is able to serve as reducing agent for electroless deposition of Au NPs on the CNPE because the potential of Cu2+/Cu is more negative than that of AuCl4-/Au. The method is simple, time-saving, and environmentally friendly. Field emission scanning electron microscopy, energy-dispersive X-ray analysis, and electrochemical techniques confirm the successful fabrication of the Au NPs/CNPE. Furthermore, Au NPs/CNPE exhibits a good sensing activity for DA oxidation with a wide linear determination range of 0.1-8 μmol/L and a low detection limit of 6 nmol/L. The Au NPs/CNPE can be potentially applied for measurement of catecholamines released from PC12 cells. This present work is believed to be beneficial to the design and development of active metal catalysts onto nanoelectrodes for the detection of electroactive biological molecules in living cells.Graphical abstract An electroless deposition method was developed for the fabrication of gold nanoparticles onto the carbon nanopipette electrode, which was served as an enhanced electrochemical sensing platform for highly sensitive detection of dopamine with a linear range of 0.1-8 μmol/L and a detection limit of 6 nmol/L, and was also applied in the detection of catecholamines released from PC12 cells.
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6
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Zheng J, Li X, Wang K, Song J, Qi H. Electrochemical Nanoaptasensor for Continuous Monitoring of ATP Fluctuation at Subcellular Level. Anal Chem 2020; 92:10940-10945. [PMID: 32700526 DOI: 10.1021/acs.analchem.0c00569] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Monitoring the fluctuation of adenosine 5'-triphosphate (ATP) at the subcellular level is important for the study of cell energy metabolism. Herein, we fabricated an electrochemical nanoaptasensor for continuously monitoring ATP fluctuation at the subcellular level. A gold nanoelectrode with a diameter of 120 nm was fabricated, and ferrocene (Fc)-labeled anti-ATP aptamer was self-assembled onto the nanoelectrode surface to form a nanoaptasensor. In the presence of ATP, the ferrocene-labeled anti-ATP aptamer bound with two ATP units to form an ATP-aptamer conjugation, resulting in the close proximity of Fc to the nanoelectrode surface and then an increase of oxidation current of Fc. ATP can be detected with a detection limit of 26 μM within 2 min. Cell viability assays indicated that the nanoaptasensor was biocompatible with negligible biological effects. By taking advantage of the good biocompatibility of the nanoaptasensor, ATP fluctuation at the subcellular level was monitored under glucose starvation and Ca2+ induction. This work demonstrates that the nanoaptasensor is a useful tool for investigating ATP-relevant biological processes via the electrochemical method.
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Affiliation(s)
- Jingyi Zheng
- School of Chemistry and Chemical Engineering, Yan'an University, Yan'an 716000, P. R. China
| | - Xiaoxia Li
- School of Chemistry and Chemical Engineering, Yan'an University, Yan'an 716000, P. R. China
| | - Ke Wang
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710062, P. R. China
| | - Jiajia Song
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710062, P. R. China
| | - Honglan Qi
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710062, P. R. China
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7
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Qi H, Song J, Fu Y, Wu X, Qi H. Highly dispersive Pt-Pd nanoparticles on graphene oxide sheathed carbon fiber microelectrodes for electrochemical detection of H 2O 2 released from living cells. NANOTECHNOLOGY 2020; 31:135503. [PMID: 31825903 DOI: 10.1088/1361-6528/ab60ce] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
We report a facile strategy for the synthesis of surfactant-free, small and highly dispersive Pt-Pd nanoparticles on graphene oxide (Pt-Pd NPs/GO) by an electroless deposition method, which is sheathed on carbon fiber microelectrodes (CFMs) as an electrochemical sensing platform for highly sensitive and selective detection of hydrogen peroxide (H2O2) released from the living cells. GO serves as the reducing agent and stabilizer for electroless deposition of Pd NPs on the surface of GO owing to its low work function (4.38 eV) and highly conjugated electronic structure. The obtained Pd NPs/GO have a relatively high work function (4.64 eV), and thereby could be used as stabilizer for synthesis of surfactant-free, small and highly dispersive Pt-Pd NPs/GO by chemical reduction of K2PtCl4. The obtained Pt-Pd NPs have a uniform size of 4.0 ± 0.6 nm on the surface of GO. Moreover, the Pt-Pd NPs/GO sheathed CFMs exhibit an excellent electrocatalytic activity for the reduction of H2O2 with a low detection limit of 0.3 μM and good selectivity. These good properties enable the modified microelectrode to detect the H2O2 released from living cells.
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Affiliation(s)
- Hetong Qi
- Institute of Analytical Science, Department of Applied Chemistry, School of Science, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
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8
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Higgins SG, Becce M, Belessiotis-Richards A, Seong H, Sero JE, Stevens MM. High-Aspect-Ratio Nanostructured Surfaces as Biological Metamaterials. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1903862. [PMID: 31944430 PMCID: PMC7610849 DOI: 10.1002/adma.201903862] [Citation(s) in RCA: 109] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 10/02/2019] [Indexed: 04/14/2023]
Abstract
Materials patterned with high-aspect-ratio nanostructures have features on similar length scales to cellular components. These surfaces are an extreme topography on the cellular level and have become useful tools for perturbing and sensing the cellular environment. Motivation comes from the ability of high-aspect-ratio nanostructures to deliver cargoes into cells and tissues, access the intracellular environment, and control cell behavior. These structures directly perturb cells' ability to sense and respond to external forces, influencing cell fate, and enabling new mechanistic studies. Through careful design of their nanoscale structure, these systems act as biological metamaterials, eliciting unusual biological responses. While predominantly used to interface eukaryotic cells, there is growing interest in nonanimal and prokaryotic cell interfacing. Both experimental and theoretical studies have attempted to develop a mechanistic understanding for the observed behaviors, predominantly focusing on the cell-nanostructure interface. This review considers how high-aspect-ratio nanostructured surfaces are used to both stimulate and sense biological systems.
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Affiliation(s)
- Stuart G. Higgins
- Department of Bioengineering, Imperial College London, London, SW7 2AZ, UK
| | | | | | - Hyejeong Seong
- Department of Bioengineering, Imperial College London, London, SW7 2AZ, UK
| | - Julia E. Sero
- Department of Bioengineering, Imperial College London, London, SW7 2AZ, UK
| | - Molly M. Stevens
- Department of Materials, Imperial College London, London, SW7 2AZ, UK
- Department of Bioengineering, Imperial College London, London, SW7 2AZ, UK
- Institute of Biomedical Engineering, Imperial College London, London, SW7 2AZ, UK
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9
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Li D, Batchelor-McAuley C, Chen L, Compton RG. Band Electrodes in Sensing Applications: Response Characteristics and Band Fabrication Methods. ACS Sens 2019; 4:2250-2266. [PMID: 31407573 DOI: 10.1021/acssensors.9b01172] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
This Review surveys the fabrication methods reported for both single microband electrodes and microband electrode arrays and their uses in sensing applications. A theoretical section on band electrodes provides background information on the structure of band electrodes, their diffusional profiles, and the types of voltammetric behavior observed. A short section summarizes the currently available commercial microband electrodes. A section describing recent (10 years) sensing applications using band electrode is also presented.
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Affiliation(s)
- Danlei Li
- Department of Chemistry, Physical and Theoretical Chemistry Laboratory, University of Oxford, South Parks Road, Oxford OX1 3QZ, United Kingdom
| | - Christopher Batchelor-McAuley
- Department of Chemistry, Physical and Theoretical Chemistry Laboratory, University of Oxford, South Parks Road, Oxford OX1 3QZ, United Kingdom
| | - Lifu Chen
- Department of Chemistry, Physical and Theoretical Chemistry Laboratory, University of Oxford, South Parks Road, Oxford OX1 3QZ, United Kingdom
| | - Richard G. Compton
- Department of Chemistry, Physical and Theoretical Chemistry Laboratory, University of Oxford, South Parks Road, Oxford OX1 3QZ, United Kingdom
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10
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Xu M, Zhang Y, Wang K, Mao J, Ji W, Qiu W, Feng T, Zhang M, Mao L. Nanoskiving fabrication of size-controlled Au nanowire electrodes for electroanalysis. Analyst 2019; 144:2914-2921. [PMID: 30912775 DOI: 10.1039/c9an00122k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Nanoskiving, benefiting from its simple operation and high reproducibility, is a promising method to fabricate nanometer-size electrodes. In this work, we report the fabrication of Au nanowire electrodes with different shapes and well-controlled sizes through nanoskiving. Au nanowire block electrodes, membrane electrodes and tip electrodes are prepared with good reproducibility. Steady-state cyclic voltammograms (CVs) demonstrate that all these electrodes behave well as nanoband ultramicroelectrodes. A fast heterogeneous electron transfer rate constant can be extracted reliably from steady-state CVs at various size Au nanowire block electrodes by the Koutecký-Levich (K-L) method. The Au nanowire membrane electrodes demonstrate good sensitivity toward the oxidation of catecholamine and could monitor catecholamine released from rat adrenal chromaffin cells stimulated by high K+.
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Affiliation(s)
- Muzhen Xu
- Department of Chemistry, Renmin University of China, Beijing, 100872, China.
| | - Yue Zhang
- Department of Chemistry, Renmin University of China, Beijing, 100872, China.
| | - Kai 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
| | - Jinpeng Mao
- Department of Chemistry, Renmin University of China, Beijing, 100872, China.
| | - Wenliang Ji
- Department of Chemistry, Renmin University of China, Beijing, 100872, China.
| | - Wanling Qiu
- Department of Chemistry, Renmin University of China, Beijing, 100872, China.
| | - Taotao Feng
- Department of Chemistry, Renmin University of China, Beijing, 100872, China.
| | - Meining Zhang
- Department of Chemistry, Renmin University of China, Beijing, 100872, 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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11
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Zhang Y, Feng T, Xu M, Tang Q, Zhang M. Observing Single Hollow Porous Carbon Catalyst Collisions for Oxygen Reduction at Gold Nanoband Electrode. Chemphyschem 2019; 20:529-532. [PMID: 30635976 DOI: 10.1002/cphc.201801028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 12/19/2018] [Indexed: 01/13/2023]
Abstract
The evaluation of single carbon particle catalysts is critical to better understand the relationship between structure and properties. Here, we use an electrochemical collision method to study the electrocatalytic behaviour of single hollow porous carbon catalyst on gold nanoband electrodes (AuNBE). We observed the catalytic current of oxygen reduction of single carbon particle and quantified the contribution of the porous structure to the catalytic performance. We find that the meso/microporous and hollow structures contribute to the electrocatalytic current. Our research provides direct evidence that the hollow/porous structures improve the electrocatalytic performance.
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Affiliation(s)
- Yue Zhang
- Department of Chemistry, Renmin University of China, Beijing, 100872, China
| | - Taotao Feng
- Department of Chemistry, Renmin University of China, Beijing, 100872, China
| | - Muzhen Xu
- Department of Chemistry, Renmin University of China, Beijing, 100872, China
| | - Qiao Tang
- 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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12
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Oomen PE, Zhang Y, Chiechi RC, Verpoorte E, Mathwig K. Electrochemical sensing with single nanoskived gold nanowires bisecting a microchannel. LAB ON A CHIP 2018; 18:2913-2916. [PMID: 30155534 DOI: 10.1039/c8lc00787j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
We suspended a single nanoskived gold nanowire in a microfluidic channel. In this preliminary report, a 200 nm-diameter nanowire was used as an electrode to perform hydrodynamic voltammetry in the center of solution flow. Suspended nanowires exhibit superior current response due to highly efficient mass transport in the area of fastest flow.
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Affiliation(s)
- Pieter E Oomen
- University of Groningen, Groningen Research Institute of Pharmacy, Pharmaceutical Analysis, P.O. Box 196, 9700 AD Groningen, The Netherlands.
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13
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Zhang W, Fan G, Yi H, Jia G, Li Z, Yuan C, Bai Y, Fu D. Interfacial Engineering of Hierarchical Transition Metal Oxide Heterostructures for Highly Sensitive Sensing of Hydrogen Peroxide. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1703713. [PMID: 29655210 DOI: 10.1002/smll.201703713] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 01/18/2018] [Indexed: 06/08/2023]
Abstract
Hydrogen peroxide (H2 O2 ) is a major messenger molecule in cellular signal transduction. Direct detection of H2 O2 in complex environments provides the capability to illuminate its various biological functions. With this in mind, a novel electrochemical approach is here proposed by integrating a series of CoO nanostructures on CuO backbone at electrode interfaces. High-resolution transmission electron microscopy (HRTEM), X-ray diffraction, and X-ray photoelectron spectroscopy demonstrate successful formation of core-shell CuO-CoO hetero-nanostructures. Theoretical calculations further confirm energy-favorable adsorption of H2 O2 on surface sites of CuO-CoO heterostructures. Contributing to the efficient electron transfer path and enhanced capture of H2 O2 in the unique leaf-like CuO-CoO hierarchical 3D interface, an optimal biosensor-based CuO-CoO-2.5 h electrode exhibits an ultrahigh sensitivity (6349 µA m m-1 cm-2 ), excellent selectivity, and a wide detection range for H2 O2 , and is capable of monitoring endogenous H2 O2 derived from human lung carcinoma cells A549. The synergistic effects for enhanced H2 O2 adsorption in integrated CuO-CoO nanostructures and performance of the sensor suggest a potential for exploring pathological and physiological roles of reactive oxygen species like H2 O2 in biological systems.
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Affiliation(s)
- Wen Zhang
- State Key Laboratory of Bioelectronics, Demonstration Center for Experimental Biomedical Engineering Education (Southeast University), College of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, P. R. China
| | - Guozheng Fan
- College of Engineering and Applied Sciences, Nanjing University, Nanjing, 210093, P. R. China
| | - Huan Yi
- State Key Laboratory of Bioelectronics, Demonstration Center for Experimental Biomedical Engineering Education (Southeast University), College of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, P. R. China
| | - Gan Jia
- College of Engineering and Applied Sciences, Nanjing University, Nanjing, 210093, P. R. China
| | - Zhaosheng Li
- College of Engineering and Applied Sciences, Nanjing University, Nanjing, 210093, P. R. China
| | - Chunwei Yuan
- State Key Laboratory of Bioelectronics, Demonstration Center for Experimental Biomedical Engineering Education (Southeast University), College of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, P. R. China
| | - Yunfei Bai
- State Key Laboratory of Bioelectronics, Demonstration Center for Experimental Biomedical Engineering Education (Southeast University), College of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, P. R. China
| | - Degang Fu
- State Key Laboratory of Bioelectronics, Demonstration Center for Experimental Biomedical Engineering Education (Southeast University), College of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, P. R. China
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14
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Wang K, Zhao X, Li B, Wang K, Zhang X, Mao L, Ewing A, Lin Y. Ultrasonic-Aided Fabrication of Nanostructured Au-Ring Microelectrodes for Monitoring Transmitters Released from Single Cells. Anal Chem 2017; 89:8683-8688. [DOI: 10.1021/acs.analchem.7b02814] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Keqing Wang
- Department
of Chemistry, Capital Normal University, Beijing 100048, China
| | - Xu Zhao
- Department
of Chemistry, Capital Normal University, Beijing 100048, China
| | - Bo Li
- Department
of Chemistry, Capital Normal University, Beijing 100048, China
| | - Kai Wang
- Beijing
National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100190, China
| | - Xin Zhang
- Department
of Chemistry, Capital Normal University, Beijing 100048, China
| | - Lanqun Mao
- Beijing
National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100190, China
| | - Andrew Ewing
- Department
of Chemistry and Chemical Engineering and Department of Chemistry and Molecular Biology, Chalmers University of Technology, Kemivägen 10, 41296 Gothenburg, Sweden
| | - Yuqing Lin
- Department
of Chemistry, Capital Normal University, Beijing 100048, China
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15
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Zhou J, Jiang D, Chen HY. Nanoelectrochemical architectures for high-spatial-resolution single cell analysis. Sci China Chem 2017. [DOI: 10.1007/s11426-017-9109-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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16
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Liu Y, Zhang Y, Hua H, Li Y. Fabrication of single Pt@Au nanowire electrodes for monitoring hydrogen peroxide released from living cells. RSC Adv 2017. [DOI: 10.1039/c7ra08085a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Single Pt@AuNWEs were fabricated by a Cu UPD/Pt redox replacement technique, and were applied to monitoring H2O2 released from living cells.
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Affiliation(s)
- Yong Liu
- Anhui Key Laboratory of Chemo/Biosensing
- College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu
- P. R. China
| | - Yaoyao Zhang
- Anhui Key Laboratory of Chemo/Biosensing
- College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu
- P. R. China
| | - Hongmei Hua
- Anhui Key Laboratory of Chemo/Biosensing
- College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu
- P. R. China
| | - Yongxin Li
- Anhui Key Laboratory of Chemo/Biosensing
- College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu
- P. R. China
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17
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Qiu W, Zhu Q, Gao F, Gao F, Huang J, Pan Y, Wang Q. Graphene oxide directed in-situ synthesis of Prussian blue for non-enzymatic sensing of hydrogen peroxide released from macrophages. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 72:692-700. [PMID: 28024640 DOI: 10.1016/j.msec.2016.11.134] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2016] [Revised: 11/26/2016] [Accepted: 11/29/2016] [Indexed: 02/08/2023]
Abstract
A novel electrochemical non-enzymatic hydrogen peroxide (H2O2) sensor has been developed based on Prussian blue (PB) and electrochemically reduced graphene oxide (ERGO). The GO was covalently modified on glassy carbon electrode (GCE), and utilized as a directing platform for in-situ synthesis of electroactive PB. Then the GO was electrochemically treated to reduction form to improve the effective surface area and electroactivity of the sensing interface. The fabrication process was characterized by scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX) and atomic force microscopy (AFM). The results showed that the rich oxygen containing groups play a crucial role for the successful synthesis of PB, and the obtained PB layer on the covalently immobilized GO has good stability. Electrochemical sensing assay showed that the modified electrode had tremendous electrocatalytic property for the reduction of H2O2. The steady-state current response increased linearly with H2O2 concentrations from 5μM to 1mM with a fast response time (less than 3s). The detection limit was estimated to be 0.8μM. When the sensor was applied for determination of H2O2 released from living cells of macrophages, satisfactory results were achieved.
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Affiliation(s)
- Weiwei Qiu
- College of Chemistry and Environment, Fujian Province Key Laboratory of Morden Analytical Science and Separation Technology, Minnan Normal University, Zhangzhou 363000, PR China
| | - Qionghua Zhu
- College of Chemistry and Environment, Fujian Province Key Laboratory of Morden Analytical Science and Separation Technology, Minnan Normal University, Zhangzhou 363000, PR China
| | - Fei Gao
- College of Chemistry and Environment, Fujian Province Key Laboratory of Morden Analytical Science and Separation Technology, Minnan Normal University, Zhangzhou 363000, PR China
| | - Feng Gao
- College of Chemistry and Environment, Fujian Province Key Laboratory of Morden Analytical Science and Separation Technology, Minnan Normal University, Zhangzhou 363000, PR China
| | - Jiafu Huang
- College of Biological Science and Technology, Minnan Normal University, Zhangzhou 363000, PR China
| | - Yutian Pan
- College of Biological Science and Technology, Minnan Normal University, Zhangzhou 363000, PR China
| | - Qingxiang Wang
- College of Chemistry and Environment, Fujian Province Key Laboratory of Morden Analytical Science and Separation Technology, Minnan Normal University, Zhangzhou 363000, PR China.
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18
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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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19
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An ITO electrode modified with electrodeposited graphene oxide and gold nanoclusters for detecting the release of H2O2 from bupivacaine-injured neuroblastoma cells. Mikrochim Acta 2016. [DOI: 10.1007/s00604-016-1933-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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20
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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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21
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Wang Q, Li W, Qian D, Li Y, Bao N, Gu H, Yu C. Paper–based analytical device for detection of extracellular hydrogen peroxide and its application to evaluate drug–induced apoptosis. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.04.073] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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