journal article·2020-04-08Open access

An Optical Steam Sterilization Sensor Based On a Dual-Responsive Supramolecular Cross-Linked Photonic Polymer

Yari Foelen, Danielle A. C. van der Heijden, Marc del Pozo, Johan Lub, Cees W. M. Bastiaansen, Albert P. H. J. Schenning

ACS Applied Materials & Interfaces· Volume 12· Issue 14

Abstract

An optical time-temperature steam sensor is presented based on the loss of structural color in a supramolecularly cross-linked cholesteric liquid crystal photonic coating. A gradual decrease in the selective reflection band is observed upon exposure to temperatures above 105 °C related to the cholesteric to isotropic transition temperature. The linear polymers with carboxylic acid side chains provide physical cross-linking through hydrogen bonding that allows a time-temperature-dependent order loss through the dynamic equilibrium between supramolecular dimer and free monomer states. Steam is accelerating the color loss, and autoclave experiments show that the photonic supramolecular polymer is applicable as a steam sterilization sensor for medical applications.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Liquid Crystal Research Advancements · Photochromic and Fluorescence Chemistry · Photonic Crystals and Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Stimuli-responsive Functional Materials and Devices, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513, Eindhoven 5600 MB, The Netherlands

School of Engineering and Materials Science, Queen Mary University of London, Mile End Road, London E1 4NS, U.K.

SCNU-TUE Joint Laboratory of Device Integrated Responsive Materials (DIRM), South China Normal University, Guangzhou Higher Education Mega Center, Guangzhou 510006, China

Institute for Complex Molecular Systems, Eindhoven University of Technology, Den Dolech 2, Eindhoven 5600 MB, The Netherlands

Funding

Nederlandse Organisatie voor Wetenschappelijk Onderzoek · Ministry of Economic Affairs and Climate Policy · M2i-Materials innovation institute

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