title: Voltage-Responsive Controlled Release Film with Cargo Release Self-Monitoring Property Based on Hydrophobicity Switching.
abstract: Herein, voltage-responsive controlled release film was constructed by grafting ferrocene on the mesoporous inverse opal photonic crystal (mIOPC). The film achieved free-blockage controlled release and realized the monitoring of cargo release without external indicator. Free-blockage was attributed to the voltage switchable nanovalves which undergo hydrophobic-to-hydrophilic transition when applying voltage. Monitoring of cargo release was attributed to the optical property of mIOPC, the bandgap of mIOPC had a red shift when the solution invaded in. The film was hydrophobic enough to stop solution intrusion. Once the voltage was applied, the film became hydrophilic, leading to invasion of the solution. As a result, the cargos were released and the bandgap of mIOPC was red-shifted. Therefore, in this paper both a free-blockage controlled release film and a release sensing system was prepared. The study provides new insights into highly effective controlled release and release sensing without indicator.
authors.affiliation: Research Center for Bioengineering & Sensing Technology, School of Chemistry and Biological Engineering, University of Science and Technology Beijing , Beijing 100083, China.
authors.forename: Xiangyu
authors.initials: X
authors.lastname: Jiao
authors.affiliation: Key Laboratory of Green Printing, Institute of Chemistry Chinese Academy of Sciences (ICCAS), Beijing Engineering Research Center of Nanomaterials for Green Printing Technology, Beijing National Laboratory for Molecular Sciences (BNLMS) , Beijing 100190, P. R. China.
authors.forename: Yanan
authors.initials: Y
authors.lastname: Li
authors.affiliation: Key Laboratory of Green Printing, Institute of Chemistry Chinese Academy of Sciences (ICCAS), Beijing Engineering Research Center of Nanomaterials for Green Printing Technology, Beijing National Laboratory for Molecular Sciences (BNLMS) , Beijing 100190, P. R. China.
authors.forename: Fengyu
authors.initials: F
authors.lastname: Li
authors.affiliation: Research Center for Bioengineering & Sensing Technology, School of Chemistry and Biological Engineering, University of Science and Technology Beijing , Beijing 100083, China.
authors.forename: Ruijuan
authors.initials: R
authors.lastname: Sun
authors.affiliation: Research Center for Bioengineering & Sensing Technology, School of Chemistry and Biological Engineering, University of Science and Technology Beijing , Beijing 100083, China.
authors.forename: Wenqian
authors.initials: W
authors.lastname: Wang
authors.affiliation: Research Center for Bioengineering & Sensing Technology, School of Chemistry and Biological Engineering, University of Science and Technology Beijing , Beijing 100083, China.
authors.forename: Yongqiang
authors.identifier: http://orcid.org/0000-0002-1924-4166
authors.initials: Y
authors.lastname: Wen
authors.affiliation: Key Laboratory of Green Printing, Institute of Chemistry Chinese Academy of Sciences (ICCAS), Beijing Engineering Research Center of Nanomaterials for Green Printing Technology, Beijing National Laboratory for Molecular Sciences (BNLMS) , Beijing 100190, P. R. China.
authors.forename: Yanlin
authors.identifier: http://orcid.org/0000-0002-0267-3917
authors.initials: Y
authors.lastname: Song
authors.affiliation: Research Center for Bioengineering & Sensing Technology, School of Chemistry and Biological Engineering, University of Science and Technology Beijing , Beijing 100083, China.
authors.forename: Xueji
authors.initials: X
authors.lastname: Zhang
keywords: controlled release; free-blockage; hydrophobicity switching; nano valve; release sensing