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 Puig; Johan Lub; Cees W.M. Bastiaansen; Albert P.H.J. Schenning

doi:10.1021/acsami.0c00711

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 Puig, Johan Lub, Cees W.M. Bastiaansen, Albert P.H.J. Schenning (Corresponding author)

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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.

Original language	English
Pages (from-to)	16896-16902
Number of pages	7
Journal	ACS Applied Materials & Interfaces
Volume	12
Issue number	14
DOIs	https://doi.org/10.1021/acsami.0c00711
Publication status	Published - 8 Apr 2020

Keywords

cholesteric liquid crystal
optical sensors
steam sterilization
stimuli-responsive photonic polymers
supramolecular materials

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10.1021/acsami.0c00711

published versionFinal published version, 3.4 MBLicence: CC BY-NC-ND

Cite this

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title = "An optical steam sterilization sensor based on a dual-responsive supramolecular cross-linked photonic polymer",

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.",

keywords = "cholesteric liquid crystal, optical sensors, steam sterilization, stimuli-responsive photonic polymers, supramolecular materials",

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AU - Lub, Johan

AU - Bastiaansen, Cees W.M.

AU - Schenning, Albert P.H.J.

PY - 2020/4/8

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AB - 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.

KW - cholesteric liquid crystal

KW - optical sensors

KW - steam sterilization

KW - stimuli-responsive photonic polymers

KW - supramolecular materials

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An optical steam sterilization sensor based on a dual-responsive supramolecular cross-linked photonic polymer

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