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Confining Fluorescent Probes in Nanochannels to Construct Reusable Nanosensors for Ion Current and Fluorescence Dual Gating
Zhang, Dan1; Wang, Chunfei1; Wu, Changfeng2; Zhang, Xuanjun1
2022-04-26
Source PublicationNanomaterials
ISSN2079-4991
Volume12Issue:9Pages:1468
Abstract

Here, we confined fluorescent probes to solid nanochannels to construct nanosensors, which not only significantly improved the reusability of the molecular probes, but also achieved ion current and fluorescence dual gating for more reliable detection. The combination of optical and electrical modalities can provide comprehensive spatiotemporal information that can be used to elucidate the sensing mechanism within the nanochannel. As a proof-of-concept experiment, fluorescein isothiocyanate (FITC)–hydrazine (NH) was selected to modify nanochannels for the effective detection of Hg . Based on spirolactam opening tactics, the system synergistically alters the surface charge and fluorescence intensity in response to Hg, establishing a dual open state of current and fluorescence. The newly prepared nanosensor exhibited a fast response (<1 min), high sensitivity, and selectivity towards Hg . Importantly, the nanodevice could be recovered by simple NH treatment. Such sensing behavior could be used to implement optoelectronic dual-output XOR logical gates under the management of Hg and NH . This strategy is anticipated to find broad applications in other nanochannel-based systems for various sensing applications used for monitoring of pollutants, food additives, and biomolecules.

KeywordDual Gating Fluorescence Hg(Ii) Ion Current Nanochannel Sensor Reusable
DOI10.3390/nano12091468
URLView the original
Indexed BySCIE
Language英語English
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS SubjectChemistry, Multidisciplinary;nanoScience & Nanotechnology;materials Science, Multidisciplinary;physics, Applied
WOS IDWOS:000796172600001
Scopus ID2-s2.0-85128725569
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Document TypeJournal article
CollectionFaculty of Health Sciences
Corresponding AuthorZhang, Xuanjun
Affiliation1.MOE Frontiers Science Center for Precision Oncology, Faculty of Health Sciences, University of Macau, Macau, 999078, China
2.Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
First Author AffilicationFaculty of Health Sciences
Corresponding Author AffilicationFaculty of Health Sciences
Recommended Citation
GB/T 7714
Zhang, Dan,Wang, Chunfei,Wu, Changfeng,et al. Confining Fluorescent Probes in Nanochannels to Construct Reusable Nanosensors for Ion Current and Fluorescence Dual Gating[J]. Nanomaterials,2022,12(9):1468.
APA Zhang, Dan,Wang, Chunfei,Wu, Changfeng,&Zhang, Xuanjun.(2022).Confining Fluorescent Probes in Nanochannels to Construct Reusable Nanosensors for Ion Current and Fluorescence Dual Gating.Nanomaterials,12(9),1468.
MLA Zhang, Dan,et al."Confining Fluorescent Probes in Nanochannels to Construct Reusable Nanosensors for Ion Current and Fluorescence Dual Gating".Nanomaterials 12.9(2022):1468.
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