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Updated: Feb 7, 2026

Synthesis and Functionalization of 3D Nano-graphene Materials: Graphene Aerogels and Graphene Macro Assemblies
Published on: November 5, 2015
Self-Referenced Smartphone Imaging for Visual Screening of H2S Using Cu xO-Polypyrrole Conductive Aerogel Doped with
Jian Shu1, Zhenli Qiu1, Dianping Tang1
1Key Laboratory of Analytical Science for Food Safety and Biology (MOE and Fujian Province), State Key Laboratory of Photocatalysis on Energy and Environment, Department of Chemistry , Fuzhou University , Fuzhou 350116 , People's Republic of China.
Abstract:
Cu xO-polypyrrole conductive aerogel loaded on graphene oxide framework (Cu xO-PPy@GO) with a three-dimensional (3D) porous architecture was utilized for high-efficient visual screening of H2S on a flexible paper substrate. The detectable signal was acquired on a portable smartphone by using a self-referenced imaging platform equipped with the light emitting diode (LED) accompanying an image processing. As a proof-of-concept, Cu xO-PPy@GO aerogel-based sensing strategy was also developed for Na2S detection and egg spoilage monitoring. Such a flexible paper-supported sensor is expected for potential application in portable and wearable food-safety fields.
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