Radical polymerization reactions for amplified biodetection signals

Chemical reactions that provide amplified biodetection signals are essential in point-of-care diagnostics, a category of portable biosensors that should detect nanomolar to attomolar concentrations of clinically actionable biomarkers in bodily fluids without using advanced lab equipment. As an alter...

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Main Authors: Kim, Seunghyeon, Sikes Johnson, Hadley
Other Authors: Massachusetts Institute of Technology. Department of Chemical Engineering
Format: Article
Published: Royal Society of Chemistry (RSC) 2020
Online Access:https://hdl.handle.net/1721.1/123795
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author Kim, Seunghyeon
Sikes Johnson, Hadley
author2 Massachusetts Institute of Technology. Department of Chemical Engineering
author_facet Massachusetts Institute of Technology. Department of Chemical Engineering
Kim, Seunghyeon
Sikes Johnson, Hadley
author_sort Kim, Seunghyeon
collection MIT
description Chemical reactions that provide amplified biodetection signals are essential in point-of-care diagnostics, a category of portable biosensors that should detect nanomolar to attomolar concentrations of clinically actionable biomarkers in bodily fluids without using advanced lab equipment. As an alternative to common signal amplification methods that use enzymes or nanoparticles, radical polymerization has been explored as an approach to sensitive biodetection because of the inherent amplification in the chain-growth process. Polymerization-based biodetection benefits from different types of initiation reactions and a wide variety of monomer choices, making it adaptable to diverse sensing conditions and detection methods. This review presents the many radical polymerization chemistries that have been implemented in biodetection platforms and evaluates their utility. First, we describe the principle of each polymerization-based biodetection and discuss its advantages and current limitations for practical use in the field. Then, we compare all of the methods in terms of performance, equipment-dependence, user-friendliness, and amplification time. Finally, we highlight exciting future directions and opportunities for developing practical biosensors that use radical polymerization reactions to generate signals.
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spelling mit-1721.1/1237952022-09-27T18:33:17Z Radical polymerization reactions for amplified biodetection signals Kim, Seunghyeon Sikes Johnson, Hadley Massachusetts Institute of Technology. Department of Chemical Engineering Chemical reactions that provide amplified biodetection signals are essential in point-of-care diagnostics, a category of portable biosensors that should detect nanomolar to attomolar concentrations of clinically actionable biomarkers in bodily fluids without using advanced lab equipment. As an alternative to common signal amplification methods that use enzymes or nanoparticles, radical polymerization has been explored as an approach to sensitive biodetection because of the inherent amplification in the chain-growth process. Polymerization-based biodetection benefits from different types of initiation reactions and a wide variety of monomer choices, making it adaptable to diverse sensing conditions and detection methods. This review presents the many radical polymerization chemistries that have been implemented in biodetection platforms and evaluates their utility. First, we describe the principle of each polymerization-based biodetection and discuss its advantages and current limitations for practical use in the field. Then, we compare all of the methods in terms of performance, equipment-dependence, user-friendliness, and amplification time. Finally, we highlight exciting future directions and opportunities for developing practical biosensors that use radical polymerization reactions to generate signals. 2020-02-12T16:33:17Z 2020-02-12T16:33:17Z 2020-02 2019-11 Article http://purl.org/eprint/type/JournalArticle 1759-9954 1759-9962 https://hdl.handle.net/1721.1/123795 Kim, Seunghyeon and Hadley D. Sikes. "Radical polymerization reactions for amplified biodetection signals." Polymer Chemistry (February 2020): c9py01801h © 2020 Royal Society of Chemistry http://dx.doi.org/10.1039/c9py01801h Polymer Chemistry Creative Commons Attribution Noncommercial 3.0 unported license https://creativecommons.org/licenses/by-nc/3.0/ application/pdf Royal Society of Chemistry (RSC) Royal Society of Chemistry (RSC)
spellingShingle Kim, Seunghyeon
Sikes Johnson, Hadley
Radical polymerization reactions for amplified biodetection signals
title Radical polymerization reactions for amplified biodetection signals
title_full Radical polymerization reactions for amplified biodetection signals
title_fullStr Radical polymerization reactions for amplified biodetection signals
title_full_unstemmed Radical polymerization reactions for amplified biodetection signals
title_short Radical polymerization reactions for amplified biodetection signals
title_sort radical polymerization reactions for amplified biodetection signals
url https://hdl.handle.net/1721.1/123795
work_keys_str_mv AT kimseunghyeon radicalpolymerizationreactionsforamplifiedbiodetectionsignals
AT sikesjohnsonhadley radicalpolymerizationreactionsforamplifiedbiodetectionsignals