title: Environmentally responsive graphene systems.
abstract: Graphene materials have been attracting significant research interest in the past few years, with the recent focuses on graphene-based electronic devices and smart stimulus-responsive systems that have a certain degree of automatism. Owing to its huge specific surface area, large room-temperature electron mobility, excellent mechanical flexibility, exceptionally high thermal conductivity and environmental stability, graphene is identified as a beneficial additive or an effective responding component by itself to improve the conductivity, flexibility, mechanical strength and/or the overall responsive performance of smart systems. In this review article, we aim to present the recent advances in graphene systems that are of spontaneous responses to external stimulations, such as environmental variation in pH, temperature, electric current, light, moisture and even gas ambient. These smart stimulus-responsive graphene systems are believed to have great theoretical and practical interests to a wide range of device applications including actuators, switches, robots, sensors, drug/gene deliveries, etc.
authors.affiliation: Key Laboratory of Cluster Science, Ministry of Education of China, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry, Beijing Institute of Technology, Beijing, 100081, P. R. China.
authors.forename: Jing
authors.initials: J
authors.lastname: Zhang
authors.forename: Long
authors.initials: L
authors.lastname: Song
authors.forename: Zhipan
authors.initials: Z
authors.lastname: Zhang
authors.forename: Nan
authors.initials: N
authors.lastname: Chen
authors.forename: Liangti
authors.initials: L
authors.lastname: Qu
mesh_terms: D000818:Animals; D015374:Biosensing Techniques / Q000295:instrumentation*; D004777:Environment; D006108:Graphite / Q000737:chemistry*; D006801:Humans; D006863:Hydrogen-Ion Concentration; D053761:Nanocomposites / Q000737:chemistry / Q000506:poisoning; D010812:Physical Stimulation; D011108:Polymers / Q000737:chemistry; D013696:Temperature
chemical_list: D011108:Polymers; D006108:Graphite
keywords: drug delivery; electrorheology; environmentally responsive; graphene; sensor