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Gao Y, Nguyen DT, Yeo T, Lim SB, Tan WX, Madden LE, Jin L, Long JYK, Aloweni FAB, Liew YJA, Tan MLL, Ang SY, Maniya SD, Abdelwahab I, Loh KP, Chen CH, Becker DL, Leavesley D, Ho JS, Lim CT. A flexible multiplexed immunosensor for point-of-care in situ wound monitoring. Sci Adv 2021; 7:7/21/eabg9614. [PMID: 34020961 PMCID: PMC8139589 DOI: 10.1126/sciadv.abg9614] [Citation(s) in RCA: 63] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Accepted: 03/31/2021] [Indexed: 05/11/2023]
Abstract
Chronic wounds arise from interruption of normal healing due to many potential pathophysiological factors. Monitoring these multivariate factors can provide personalized diagnostic information for wound management, but current sensing technologies use complex laboratory tests or track a limited number of wound parameters. We report a flexible biosensing platform for multiplexed profiling of the wound microenvironment, inflammation, and infection state at the point of care. This platform integrates a sensor array for measuring inflammatory mediators [tumor necrosis factor-α, interleukin-6 (IL-6), IL-8, and transforming growth factor-β1], microbial burden (Staphylococcus aureus), and physicochemical parameters (temperature and pH) with a microfluidic wound exudate collector and flexible electronics for wireless, smartphone-based data readout. We demonstrate in situ multiplexed monitoring in a mouse wound model and also profile wound exudates from patients with venous leg ulcers. This technology may facilitate more timely and personalized wound management to improve chronic wound healing outcomes.
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Affiliation(s)
- Yuji Gao
- Institute for Health Innovation & Technology (iHealthtech), National University of Singapore, Singapore 117599, Singapore.
| | - Dat T Nguyen
- Integrative Sciences and Engineering Programme, NUS Graduate School, National University of Singapore, Singapore 119077, Singapore
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore 117583, Singapore
| | - Trifanny Yeo
- Department of Biomedical Engineering, National University of Singapore, Singapore 117583, Singapore
| | - Su Bin Lim
- Department of Biomedical Engineering, National University of Singapore, Singapore 117583, Singapore
| | - Wei Xian Tan
- Nursing, Singapore General Hospital, Singapore 168753, Singapore
| | - Leigh Edward Madden
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore 308232, Singapore
| | - Lin Jin
- Department of Biomedical Engineering, National University of Singapore, Singapore 117583, Singapore
| | - Ji Yong Kenan Long
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore 117583, Singapore
| | | | | | - Mandy Li Ling Tan
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore 308232, Singapore
| | - Shin Yuh Ang
- Nursing, Singapore General Hospital, Singapore 168753, Singapore
| | | | - Ibrahim Abdelwahab
- Department of Chemistry, National University of Singapore, Singapore 117543, Singapore
| | - Kian Ping Loh
- Department of Chemistry, National University of Singapore, Singapore 117543, Singapore
| | - Chia-Hung Chen
- Department of Biomedical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, China
| | - David Laurence Becker
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore 308232, Singapore
- Skin Research Institute of Singapore, Agency for Science, Technology and Research (A*STAR), Singapore 138648, Singapore
| | - David Leavesley
- Skin Research Institute of Singapore, Agency for Science, Technology and Research (A*STAR), Singapore 138648, Singapore
| | - John S Ho
- Institute for Health Innovation & Technology (iHealthtech), National University of Singapore, Singapore 117599, Singapore
- Integrative Sciences and Engineering Programme, NUS Graduate School, National University of Singapore, Singapore 119077, Singapore
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore 117583, Singapore
| | - Chwee Teck Lim
- Institute for Health Innovation & Technology (iHealthtech), National University of Singapore, Singapore 117599, Singapore.
- Department of Biomedical Engineering, National University of Singapore, Singapore 117583, Singapore
- Mechanobiology Institute, National University of Singapore, Singapore 117411, Singapore
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