TY - JOUR
T1 - Visual multi-triggered sensor based on inverse opal hydrogel
AU - Zhao, Weidong
AU - Quan, Maohua
AU - Cao, Ziquan
AU - Zhang, Yuxian
AU - Wen, Jiahui
AU - Pan, Dong
AU - Dong, Zhengang
AU - Yang, Zhou
AU - Wang, Dong
AU - Cao, Hui
AU - He, Wanli
N1 - Publisher Copyright:
© 2018 Elsevier B.V.
PY - 2018/10/5
Y1 - 2018/10/5
N2 - Smart hydrogels are regarded as novel sensors due to large reversible volume change in response to external stimuli. Here we prepared a novel visual multi-triggered sensor based on inverse opal hydrogel (IOH) that responses to pH, temperature and light, respectively. The hydrogel was composed of hydrophilic pH and temperature responsive poly(dimethylaminoethyl methacrylate) (PDMAEMA), and light responsive spiropyran-containing segment. When the pH decreased, the sensor changed its structural color from blue to orange-red, and the structural color was reversibly recovered by increasing pH. In addition, the color of sensor can be controlled to change from green to violet while applying a temperature field. Furthermore, the reflection peak of IOH exhibited obvious shifted behavior by UV/visible irradiation. Repeated condition changes revealed that the sensor has a long lifetime.
AB - Smart hydrogels are regarded as novel sensors due to large reversible volume change in response to external stimuli. Here we prepared a novel visual multi-triggered sensor based on inverse opal hydrogel (IOH) that responses to pH, temperature and light, respectively. The hydrogel was composed of hydrophilic pH and temperature responsive poly(dimethylaminoethyl methacrylate) (PDMAEMA), and light responsive spiropyran-containing segment. When the pH decreased, the sensor changed its structural color from blue to orange-red, and the structural color was reversibly recovered by increasing pH. In addition, the color of sensor can be controlled to change from green to violet while applying a temperature field. Furthermore, the reflection peak of IOH exhibited obvious shifted behavior by UV/visible irradiation. Repeated condition changes revealed that the sensor has a long lifetime.
KW - Inverse opal hydrogel
KW - Multi-triggered senor
KW - Photonic crystal
KW - Reversible deformation
UR - http://www.scopus.com/inward/record.url?scp=85048536065&partnerID=8YFLogxK
U2 - 10.1016/j.colsurfa.2018.06.024
DO - 10.1016/j.colsurfa.2018.06.024
M3 - Article
AN - SCOPUS:85048536065
SN - 0927-7757
VL - 554
SP - 93
EP - 99
JO - Colloids and Surfaces A: Physicochemical and Engineering Aspects
JF - Colloids and Surfaces A: Physicochemical and Engineering Aspects
ER -