TY - JOUR
T1 - An optical steam sterilization sensor based on a dual-responsive supramolecular cross-linked photonic polymer
AU - Foelen, Yari
AU - van der Heijden, Danielle A.C.
AU - del Pozo Puig, Marc
AU - Lub, Johan
AU - Bastiaansen, Cees W.M.
AU - Schenning, Albert P.H.J.
PY - 2020/4/8
Y1 - 2020/4/8
N2 - 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.
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
UR - http://www.scopus.com/inward/record.url?scp=85082869228&partnerID=8YFLogxK
U2 - 10.1021/acsami.0c00711
DO - 10.1021/acsami.0c00711
M3 - Article
C2 - 32223125
SN - 1944-8244
VL - 12
SP - 16896
EP - 16902
JO - ACS Applied Materials & Interfaces
JF - ACS Applied Materials & Interfaces
IS - 14
ER -