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Tuning SLOCK toward Chronic Disease Diagnostics and Management: Label-free Sweat Interleukin-31 Detection
[Image: see text] SLOCK (sensor for circadian clock) is an electrochemical sweat-based biosensing platform designed for the diagnosis and management of circadian abnormalities. Previously, the SLOCK platform was designed to detect adrenal steroids, cortisol, and DHEA for tracking the circadian rhyth...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2021
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8359127/ https://www.ncbi.nlm.nih.gov/pubmed/34395990 http://dx.doi.org/10.1021/acsomega.1c02414 |
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author | Upasham, Sayali Prasad, Shalini |
author_facet | Upasham, Sayali Prasad, Shalini |
author_sort | Upasham, Sayali |
collection | PubMed |
description | [Image: see text] SLOCK (sensor for circadian clock) is an electrochemical sweat-based biosensing platform designed for the diagnosis and management of circadian abnormalities. Previously, the SLOCK platform was designed to detect adrenal steroids, cortisol, and DHEA for tracking the circadian rhythm. This work aims at tuning this SLOCK platform toward the detection of the cytokine, interleukin-31, for building a noninvasive, chronic disease diagnostics and management platform. This research provides a detailed characterization of the sensing surface and immunochemistry. The results show that SLOCK has good sensitivity to IL-31 concentrations in synthetic and human sweat. The limit of detection is 50 and 100 pg/mL for synthetic and human sweat, respectively. The dynamic range of the system is 50–1000 pg/mL, which encompasses the physiological ranges of 150–620 pg/mL. This is the first demonstration of sweat-based, label-free, electrochemical detection of IL-31. In addition to this, the data show good correlation (R(2) > 0.95) for the signal sensitivity to biomarker concentration. Finally, cross-reactivity studies highlight the specificity of SLOCK even in the presence of highly cross-reactive species. Thus, this novel SLOCK biosensor can be successfully used to track IL-31 in a sensitive and noninvasive manner and could be used to identify chronic pathophysiologies present in the body. |
format | Online Article Text |
id | pubmed-8359127 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-83591272021-08-13 Tuning SLOCK toward Chronic Disease Diagnostics and Management: Label-free Sweat Interleukin-31 Detection Upasham, Sayali Prasad, Shalini ACS Omega [Image: see text] SLOCK (sensor for circadian clock) is an electrochemical sweat-based biosensing platform designed for the diagnosis and management of circadian abnormalities. Previously, the SLOCK platform was designed to detect adrenal steroids, cortisol, and DHEA for tracking the circadian rhythm. This work aims at tuning this SLOCK platform toward the detection of the cytokine, interleukin-31, for building a noninvasive, chronic disease diagnostics and management platform. This research provides a detailed characterization of the sensing surface and immunochemistry. The results show that SLOCK has good sensitivity to IL-31 concentrations in synthetic and human sweat. The limit of detection is 50 and 100 pg/mL for synthetic and human sweat, respectively. The dynamic range of the system is 50–1000 pg/mL, which encompasses the physiological ranges of 150–620 pg/mL. This is the first demonstration of sweat-based, label-free, electrochemical detection of IL-31. In addition to this, the data show good correlation (R(2) > 0.95) for the signal sensitivity to biomarker concentration. Finally, cross-reactivity studies highlight the specificity of SLOCK even in the presence of highly cross-reactive species. Thus, this novel SLOCK biosensor can be successfully used to track IL-31 in a sensitive and noninvasive manner and could be used to identify chronic pathophysiologies present in the body. American Chemical Society 2021-07-22 /pmc/articles/PMC8359127/ /pubmed/34395990 http://dx.doi.org/10.1021/acsomega.1c02414 Text en © 2021 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by-nc-nd/4.0/Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Upasham, Sayali Prasad, Shalini Tuning SLOCK toward Chronic Disease Diagnostics and Management: Label-free Sweat Interleukin-31 Detection |
title | Tuning SLOCK toward Chronic Disease Diagnostics and
Management: Label-free Sweat Interleukin-31 Detection |
title_full | Tuning SLOCK toward Chronic Disease Diagnostics and
Management: Label-free Sweat Interleukin-31 Detection |
title_fullStr | Tuning SLOCK toward Chronic Disease Diagnostics and
Management: Label-free Sweat Interleukin-31 Detection |
title_full_unstemmed | Tuning SLOCK toward Chronic Disease Diagnostics and
Management: Label-free Sweat Interleukin-31 Detection |
title_short | Tuning SLOCK toward Chronic Disease Diagnostics and
Management: Label-free Sweat Interleukin-31 Detection |
title_sort | tuning slock toward chronic disease diagnostics and
management: label-free sweat interleukin-31 detection |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8359127/ https://www.ncbi.nlm.nih.gov/pubmed/34395990 http://dx.doi.org/10.1021/acsomega.1c02414 |
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