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Yang Q, Liao J, Feng L, Wang S, Zhao Z, Wang J, Bu Y, Zhuang J, Zhang DW. One-step construction of multiplexed enzymatic biosensors using light-addressable electrochemistry on a single silicon photoelectrode. Biosens Bioelectron 2024; 253:116194. [PMID: 38467100 DOI: 10.1016/j.bios.2024.116194] [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: 01/25/2024] [Revised: 02/28/2024] [Accepted: 03/05/2024] [Indexed: 03/13/2024]
Abstract
The multiplexed detection of metabolites in parallel within a single biosensor plate is sufficiently valuable but also challenging. Herein, we combine the inherent light addressability of silicon with the high selectivity of enzymes, for the construction of multiplexed photoelectrochemical enzymatic biosensors. To conduct a stable electrochemistry and reagentless biosensing on silicon, a new strategy involving the immobilization of both redox mediators and enzymes using an amide bond-based hydrogel membrane was proposed. The membrane characterization results demonstrated a covalent coupling of ferrocene mediator to hydrogel, in which the mediator acted as not only a signal generator but also a renewable sacrifice agent. By adding corresponding enzymes on different spots of hydrogel membrane modified silicon and recording local photocurrents with a moveable light pointer, this biosensor setup was used successfully to detect multiple metabolites, such as lactate, glucose, and sarcosine, with good analytical performances. The limits of detection of glucose, sarcosine and lactate were found to be 179 μM, 16 μM, and 780 μM with the linear ranges of 0.5-2.5 mM, 0.3-1.5 mM, and 1.0-3.0 mM, respectively. We believe this proof-of-concept study provides a simple and rapid one-step immobilization approach for the fabrication of reagentless enzymatic assays with silicon-based light-addressable electrochemistry.
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Affiliation(s)
- Qiaoyu Yang
- Department of Biophysics, School of Basic Medical Sciences, Health Science Center, Xi'an Jiaotong University, Xi'an, 710061, China; Institute of Medical Engineering, Translational Medicine Institute, Xi'an Jiaotong University, Xi'an, 710061, China
| | - Jiaming Liao
- Department of Biophysics, School of Basic Medical Sciences, Health Science Center, Xi'an Jiaotong University, Xi'an, 710061, China; Institute of Medical Engineering, Translational Medicine Institute, Xi'an Jiaotong University, Xi'an, 710061, China
| | - Luyao Feng
- Department of Biophysics, School of Basic Medical Sciences, Health Science Center, Xi'an Jiaotong University, Xi'an, 710061, China; Institute of Medical Engineering, Translational Medicine Institute, Xi'an Jiaotong University, Xi'an, 710061, China
| | - Sen Wang
- School of Future Technology, Xi'an Jiaotong University, Xi'an, 710049, China; Institute of Medical Engineering, Translational Medicine Institute, Xi'an Jiaotong University, Xi'an, 710061, China
| | - Zhibin Zhao
- School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Jian Wang
- Department of Biophysics, School of Basic Medical Sciences, Health Science Center, Xi'an Jiaotong University, Xi'an, 710061, China; Institute of Medical Engineering, Translational Medicine Institute, Xi'an Jiaotong University, Xi'an, 710061, China.
| | - Yazhong Bu
- Department of Biophysics, School of Basic Medical Sciences, Health Science Center, Xi'an Jiaotong University, Xi'an, 710061, China; Institute of Medical Engineering, Translational Medicine Institute, Xi'an Jiaotong University, Xi'an, 710061, China.
| | - Jian Zhuang
- Key Laboratory of Education Ministry for Modern Design Rotor-Bearing System, Xi'an Jiaotong University, Xi'an, 710049, China; School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an, 710049, China
| | - De-Wen Zhang
- Department of Biophysics, School of Basic Medical Sciences, Health Science Center, Xi'an Jiaotong University, Xi'an, 710061, China; School of Future Technology, Xi'an Jiaotong University, Xi'an, 710049, China; Institute of Medical Engineering, Translational Medicine Institute, Xi'an Jiaotong University, Xi'an, 710061, China.
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Meng Y, Chen F, Wu C, Krause S, Wang J, Zhang DW. Light-Addressable Electrochemical Sensors toward Spatially Resolved Biosensing and Imaging Applications. ACS Sens 2022; 7:1791-1807. [PMID: 35762514 DOI: 10.1021/acssensors.2c00940] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The light-addressable electrochemical sensor (LAES) is a recently emerged bioanalysis technique combining electrochemistry with the photoelectric effect in a semiconductor. In an LAES, a semiconductor substrate is illuminated locally to generate charge carriers in a well-defined area, thereby confining the electrochemical process to a target site. Benefiting from the unique light addressability, an LAES can not only detect multiple analytes in parallel within a single sensor plate but also act as a bio(chemical) imaging sensor to visualize the two-dimensional distribution of specific analytes. An LAES usually has three working modes: a potentiometric mode using light-addressable potentiometric sensors (LAPS) and an impedance mode using scanning photoinduced impedance microscopy (SPIM), while an amperometric mode refers to light-addressable electrochemistry (LAE) and photoelectrochemical (PEC) sensing. In this review, we describe the detection principles of each mode of LAESs and the concept of light addressability. In addition, we highlight the recent progress and advance of LAESs in spatial resolution, sensor system design, multiplexed detection, and bio(chemical) imaging applications. An outlook on current research challenges and future prospects is also presented.
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Affiliation(s)
- Yao Meng
- Institute of Medical Engineering, Department of Biophysics, School of Basic Medical Sciences, Health Science Center, Xi'an Jiaotong University, Xi'an, 710061, China
| | - Fangming Chen
- Institute of Medical Engineering, Department of Biophysics, School of Basic Medical Sciences, Health Science Center, Xi'an Jiaotong University, Xi'an, 710061, China
| | - Chunsheng Wu
- Institute of Medical Engineering, Department of Biophysics, School of Basic Medical Sciences, Health Science Center, Xi'an Jiaotong University, Xi'an, 710061, China
| | - Steffi Krause
- School of Engineering and Materials Science, Queen Mary University of London, Mile End Road, London E1 4NS, U.K
| | - Jian Wang
- Institute of Medical Engineering, Department of Biophysics, School of Basic Medical Sciences, Health Science Center, Xi'an Jiaotong University, Xi'an, 710061, China.,Key Laboratory of Environment and Genes Related to Diseases (Xi'an Jiaotong University), Ministry of Education of China, Xi'an, 710061, China
| | - De-Wen Zhang
- Institute of Medical Engineering, Department of Biophysics, School of Basic Medical Sciences, Health Science Center, Xi'an Jiaotong University, Xi'an, 710061, China.,Key Laboratory of Environment and Genes Related to Diseases (Xi'an Jiaotong University), Ministry of Education of China, Xi'an, 710061, China
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Yang Y, Mansfeld FM, Kavallaris M, Gaus K, Tilley RD, Gooding JJ. Monitoring the heterogeneity in single cell responses to drugs using electrochemical impedance and electrochemical noise. Chem Sci 2020; 12:2558-2566. [PMID: 34164023 PMCID: PMC8179273 DOI: 10.1039/d0sc05489e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Accepted: 12/28/2020] [Indexed: 12/24/2022] Open
Abstract
Impedance spectroscopy is a widely used technique for monitoring cell-surface interactions and morphological changes, typically based on averaged signals from thousands of cells. However, acquiring impedance data at the single cell level, can potentially reveal cell-to-cell heterogeneity for example in response to chemotherapeutic agents such as doxorubicin. Here, we present a generic platform where light is used to define and localize the electroactive area, thus enabling the impedance measurements for selected single cells. We firstly tested the platform to assess phenotypic changes in breast cancer cells, at the single cell level, using the change in the cell impedance. We next show that changes in electrochemical noise reflects instantaneous responses of the cells to drugs, prior to any phenotypical changes. We used doxorubicin and monensin as model drugs and found that both drug influx and efflux events affect the impedance noise signals. Finally, we show how the electrochemical noise signal can be combined with fluorescence microscopy, to show that the noise provides information on cell susceptibility and resistance to drugs at the single cell level. Together the combination of electrochemical impedance and electrochemical noise with fluorescence microscopy provides a unique approach to understanding the heterogeneity in the response of single cells to stimuli where there is not phenotypic change.
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Affiliation(s)
- Ying Yang
- School of Chemistry, The University of New South Wales Sydney NSW 2052 Australia
- Australian Centre for NanoMedicine, The University of New South Wales Sydney NSW 2052 Australia
- The ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of New South Wales Sydney NSW 2052 Australia
| | - Friederike M Mansfeld
- Australian Centre for NanoMedicine, The University of New South Wales Sydney NSW 2052 Australia
- The ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of New South Wales Sydney NSW 2052 Australia
- Children's Cancer Institute, The University of New South Wales Sydney NSW 2052 Australia
- Monash Institute of Pharmaceutical Sciences, Monash University Melbourne VIC 3052 Australia
| | - Maria Kavallaris
- Australian Centre for NanoMedicine, The University of New South Wales Sydney NSW 2052 Australia
- The ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of New South Wales Sydney NSW 2052 Australia
- Children's Cancer Institute, The University of New South Wales Sydney NSW 2052 Australia
| | - Katharina Gaus
- EMBL Australia Node in Single Molecule Science, School of Medical Sciences, The University of New South Wales Sydney NSW 2052 Australia
- ARC Centre of Excellence in Advanced Molecular Imaging, The University of New South Wales Sydney NSW 2052 Australia
| | - Richard D Tilley
- School of Chemistry, The University of New South Wales Sydney NSW 2052 Australia
- Australian Centre for NanoMedicine, The University of New South Wales Sydney NSW 2052 Australia
| | - J Justin Gooding
- School of Chemistry, The University of New South Wales Sydney NSW 2052 Australia
- Australian Centre for NanoMedicine, The University of New South Wales Sydney NSW 2052 Australia
- The ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of New South Wales Sydney NSW 2052 Australia
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Gautam S, Lian J, R. Gonçales V, Vogel YB, Ciampi S, Tilley RD, Gooding JJ. Surface Patterning of Biomolecules Using Click Chemistry and Light‐Activated Electrochemistry to Locally Generate Cu(I). ChemElectroChem 2020. [DOI: 10.1002/celc.202001097] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Shreedhar Gautam
- School of Chemistry Australian Centre of NanoMedicine and ARC Centre of Excellence in Convergent Bio-Nano Science and Technology The University of New South Wales Sydney 2052 Australia
| | - Jiaxin Lian
- School of Chemistry Australian Centre of NanoMedicine and ARC Centre of Excellence in Convergent Bio-Nano Science and Technology The University of New South Wales Sydney 2052 Australia
| | - Vinicius R. Gonçales
- School of Chemistry Australian Centre of NanoMedicine and ARC Centre of Excellence in Convergent Bio-Nano Science and Technology The University of New South Wales Sydney 2052 Australia
| | - Yan B. Vogel
- School of Molecular and Life Sciences Curtin Institute of Functional Molecules and Interfaces Curtin University Bentley 6102 WA Australia
| | - Simone Ciampi
- School of Molecular and Life Sciences Curtin Institute of Functional Molecules and Interfaces Curtin University Bentley 6102 WA Australia
| | - Richard D. Tilley
- School of Chemistry Australian Centre of NanoMedicine and ARC Centre of Excellence in Convergent Bio-Nano Science and Technology The University of New South Wales Sydney 2052 Australia
- Electron Microscope Unit Mark Wainwright Analytical Centre The University of New South Wales Sydney 2052 Australia
| | - J. Justin Gooding
- School of Chemistry Australian Centre of NanoMedicine and ARC Centre of Excellence in Convergent Bio-Nano Science and Technology The University of New South Wales Sydney 2052 Australia
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