A light responsive two-component supramolecular hydrogel: a sensitive platform for the fabrication of humidity sensors

Suman Samai; Christos Sapsanis; Sachin P Patil; Alaa Ezzeddine; Basem A Moosa; Hesham Omran; Abdul-Hamid Emwas; Khaled N Salama; Niveen M Khashab

doi:10.1039/c6sm00272b

A light responsive two-component supramolecular hydrogel: a sensitive platform for the fabrication of humidity sensors

Soft Matter. 2016 Mar 21;12(11):2842-5. doi: 10.1039/c6sm00272b.

Authors

Suman Samai¹, Christos Sapsanis², Sachin P Patil¹, Alaa Ezzeddine¹, Basem A Moosa¹, Hesham Omran², Abdul-Hamid Emwas³, Khaled N Salama², Niveen M Khashab¹

Affiliations

¹ King Abdullah University of Science and Technology (KAUST), Advance Membranes and Porous Materials Center, Smart Hybrid Materials Laboratory (SHMs), Thuwal, Makkah 23955-6900, Kingdom of Saudi Arabia. niveen.khashab@kaust.edu.sa.
² Sensors Lab, Electrical Engineering Program, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia.
³ Imaging and Characterization Core Lab, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia.

PMID: 26908051
DOI: 10.1039/c6sm00272b

Abstract

The supramolecular assembly of anionic azobenzene dicarboxylate and cationic cetyltrimethylammonium bromide (CTAB) formed a stimuli responsive hydrogel with a critical gelation concentration (CGC) of 0.33 wt%. This self-sustainable two-component system was able to repair damage upon light irradiation. Moreover, it was successfully employed in the fabrication of highly sensitive humidity sensors for the first time.