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Chow EKH. The 2023 SLAS technology ten: Translating life sciences innovation. SLAS Technol 2023; 28:1. [PMID: 36581001 DOI: 10.1016/j.slast.2022.12.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Shruthi Vishwanath M, Kumara Swamy B, Vishnumurthy K. Zinc Oxide Modified Carbon Paste Electrode Sensor for the Voltammetric Detection of L-tryptophan in presence of Uric acid and Ascorbic acid. INORG CHEM COMMUN 2023. [DOI: 10.1016/j.inoche.2023.110555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
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Chen H, Liu H, Cui C, Zhang W, Zuo Y. Recombinant protein G/Au nanoparticles/graphene oxide modified electrodes used as an electrochemical biosensor for Brucella Testing in milk. JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2022; 59:4653-4662. [PMID: 36276517 PMCID: PMC9579256 DOI: 10.1007/s13197-022-05544-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 06/14/2022] [Accepted: 06/19/2022] [Indexed: 06/16/2023]
Abstract
In this study, a simple label-free biosensor for Brucella was constructed, which based on the screen-printed carbon electrode (SPCE) modified by Recombinant protein G/gold nanoparticles/graphene oxide (RpG/Au/GO). The impedance responses of the proposed biosensor were measured by electrochemical AC impedance method in Brucella antigen gradient concentration solutions. The results showed that the linear range of this biosensor was from 1.6 × 102 CFU/mL to 1.6 × 108 CFU/mL with the minimum detection limit of 3.2 × 102 CFU/mL (S/N = 3). Moreover, the biosensor for Brucella detection possessed acceptable reproducibility with a relative standard deviation of 5.15% and acceptable stability with a relative standard deviation of 4.68%. The spiked recovery rate in actual pasteurized milk samples was more than 92%. Therefore, the developed biosensor exhibits excellent prospects in the selective quantification detection of Brucella abortus. Supplementary Information The online version contains supplementary material available at 10.1007/s13197-022-05544-8.
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Affiliation(s)
- Hongshuo Chen
- College of Electrical Engineering, North China University of Science and Technology, Tangshan, 063210 People’s Republic of China
- College of Engineering, Shanxi Agricultural University, Taigu, 030801 People’s Republic of China
| | - Haibin Liu
- College of Life Sciences, North China University of Science and Technology, Tangshan, 063210 People’s Republic of China
| | - Chuanjin Cui
- College of Electrical Engineering, North China University of Science and Technology, Tangshan, 063210 People’s Republic of China
| | - Wensi Zhang
- College of Electrical Engineering, North China University of Science and Technology, Tangshan, 063210 People’s Republic of China
| | - Yueming Zuo
- College of Engineering, Shanxi Agricultural University, Taigu, 030801 People’s Republic of China
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Aafria S, Kumari P, Sharma S, Yadav S, Batra B, Rana J, Sharma M. Electrochemical biosensing of uric acid: A review. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107945] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Bhattacharya G, Fishlock SJ, Hussain S, Choudhury S, Xiang A, Kandola B, Pritam A, Soin N, Roy SS, McLaughlin JA. Disposable Paper-Based Biosensors: Optimizing the Electrochemical Properties of Laser-Induced Graphene. ACS APPLIED MATERIALS & INTERFACES 2022; 14:31109-31120. [PMID: 35767835 PMCID: PMC9284512 DOI: 10.1021/acsami.2c06350] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Laser-induced graphene (LIG) on paper substrates is a desirable material for single-use point-of-care sensing with its high-quality electrical properties, low fabrication cost, and ease of disposal. While a prior study has shown how the repeated lasing of substrates enables the synthesis of high-quality porous graphitic films, however, the process-property correlation of lasing process on the surface microstructure and electrochemical behavior, including charge-transfer kinetics, is missing. The current study presents a systematic in-depth study on LIG synthesis to elucidate the complex relationship between the surface microstructure and the resulting electroanalytical properties. The observed improvements were then applied to develop high-quality LIG-based electrochemical biosensors for uric acid detection. We show that the optimal paper LIG produced via a dual pass (defocused followed by focused lasing) produces high-quality graphene in terms of crystallinity, sp2 content, and electrochemical surface area. The highest quality LIG electrodes achieved a high rate constant k0 of 1.5 × 10-2 cm s-1 and a significant reduction in charge-transfer resistance (818 Ω compared with 1320 Ω for a commercial glassy carbon electrode). By employing square wave anodic stripping voltammetry and chronoamperometry on a disposable two-electrode paper LIG-based device, the improved charge-transfer kinetics led to enhanced performance for sensing of uric acid with a sensitivity of 24.35 ± 1.55 μA μM-1 and a limit of detection of 41 nM. This study shows how high-quality, sensitive LIG electrodes can be integrated into electrochemical paper analytical devices.
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Affiliation(s)
- Gourav Bhattacharya
- School
of Engineering, Ulster University, Newtownabbey, Belfast BT37 0QB, Northern Ireland, U.K.
| | - Sam J. Fishlock
- School
of Engineering, Ulster University, Newtownabbey, Belfast BT37 0QB, Northern Ireland, U.K.
| | - Shahzad Hussain
- School
of Engineering, Ulster University, Newtownabbey, Belfast BT37 0QB, Northern Ireland, U.K.
| | - Sudipta Choudhury
- Department
of Physics, School of Natural Sciences, Shiv Nadar University, Gautam
Buddha Nagar 201314, Uttar Pradesh, India
| | - Annan Xiang
- IMRI, University of Bolton, Deane Road, Bolton BL3
5AB, U.K.
| | | | - Anurag Pritam
- Department
of Chemistry, Indian Institute of Technology
Kanpur, Kanpur, Uttar Pradesh 208016, India
| | - Navneet Soin
- School
of Engineering, Ulster University, Newtownabbey, Belfast BT37 0QB, Northern Ireland, U.K.
| | - Susanta Sinha Roy
- Department
of Physics, School of Natural Sciences, Shiv Nadar University, Gautam
Buddha Nagar 201314, Uttar Pradesh, India
| | - James A. McLaughlin
- School
of Engineering, Ulster University, Newtownabbey, Belfast BT37 0QB, Northern Ireland, U.K.
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