Preparation of Molecule‐Responsive Microsized Hydrogels via Photopolymerization for Smart Microchannel Microvalves. Issue 6 (26th January 2015)

• Record Type: Journal Article
• Authors: Shiraki, Yusuke; Tsuruta, Kazuhiro; Morimoto, Junpei; Ohba, Chihiro; Kawamura, Akifumi; Yoshida, Ryo; Kawano, Ryuji; Uragami, Tadashi; Miyata, Takashi
• Is Part Of: Macromolecular rapid communications. Volume 36:Issue 6(2015:Mar.)
• Page Start: 515
• Page End: 519
• Publication Date: 2015-01-26
• Subjects: dynamic cross‐link -- microchannels -- microfluidics -- molecular recognition -- stimuli‐responsive hydrogels; Macromolecules -- Periodicals; Polymers -- Periodicals; Chemistry -- Periodicals; 547.705
• DOI: 10.1002/marc.201400676
• Languages: English
• ISSNs: 1022-1336

Abstract

Abstract : Microdevices designed for practical environmental pollution monitoring need to detect specific pollutants such as dioxins. Bisphenol A (BPA) has been widely used as a monomer for the synthesis of polycarbonate and epoxy resins. However, the recent discovery of its high potential ability to disrupt human endocrine systems has made the development of smart systems and microdevices for its detection and removal necessary. Molecule‐responsive microsized hydrogels with β‐cycrodextrin (β‐CD) as ligands are prepared by photopolymerization using a fluorescence microscope. The molecule‐responsive micro‐hydrogels show ultra‐quick shrinkage in response to target BPA. Furthermore, the flow rate of a microchannel is autonomously regulated by the molecule‐responsive shrinking of their hydrogels as smart microvalves. Abstract : Molecule‐responsive microsized hydrogels with β‐cyclodextrin (β‐CD) as ligands are prepared by photopolymerization using a fluorescence microscope. The molecule‐responsive micro‐hydrogels show ultra‐quick shrinkage in response to target bisphenol A (BPA). The flow rate of a microchannel is autonomously regulated by the molecule‐responsive shrinking of the hydrogels as smart microvalves.