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Chiral CdSe nanoplatelets as an ultrasensitive probe for lead ion sensing
Xiongbin Wang1; Junjie Hao1,2; Jiaji Cheng3,4; Junzi Li3; Jun Miao5,6; Ruxue Li1; Yiwen Li1,5; Jiagen Li7; Yuhui Liu1; Xi Zhu7; Yanjun Liu1; Xiao Wei Sun1; Zikang Tang5; Marie-Hélène Delville2; Tingchao He3; Rui Chen1
2019-05-06
Source PublicationNanoscale
ISSN2040-3372
Volume11Issue:19Pages:9327-9334
Other Abstract

As opposed to traditional photoluminescence and ultra-violet based optical sensing, we present here a sensing system based on resolved optically active polarization with promising applications. It is based on the ultrathin CdSe nanoplatelets (NPLs) when modified with either L or D-cysteine molecules (L/D-cys) as bio-to-nano ligands. The chiral ligand transfers its chiroptical activity to the achiral nanoplatelets with an anisotropy factor of ∼10−4, which unlocks the chiral excitonic transitions and allows lead ion detection with a limit of detection (LOD) as low as 4.9 nM. Simulations and modelling based on time-dependent density functional theory (TD-DFT) reveal the chiral mechanism of L/D-cys capped CdSe NPLs. The presented CD-based sensing system illustrates an alternative possibility of using chiral CdSe NPLs as competitive chiral sensors for heavy metal ion detection.

DOI10.1039/c8nr10506e
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:000468868200056
PublisherROYAL SOC CHEMISTRY, THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND
Scopus ID2-s2.0-85065974607
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Cited Times [WOS]:27   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionINSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING
Corresponding AuthorMarie-Hélène Delville; Tingchao He; Rui Chen
Affiliation1.Department of Electrical and Electronic Engineering,Southern University of Science and Technology,Shenzhen Guangdong,518055,China
2.University of Bordeaux,CNRS,ICMCB,UMR,Pessac,5026 F-33608,France
3.College of Physics and Energy,Shenzhen University,Shenzhen Guangdong,518060,China
4.School of Materials Science and Engineering,Hubei University,Wuhan,430062,China
5.The Institute of Applied Physics and Materials Engineering,University of Macau,Taipa,Avenida da Universidade,Macao
6.Department of Materials Science and Engineering,Southern University of Science and Technology,Shenzhen Guangdong,518055,China
7.School of Science and Engineering,Chinese University of Hong Kong,518172,China
Recommended Citation
GB/T 7714
Xiongbin Wang,Junjie Hao,Jiaji Cheng,et al. Chiral CdSe nanoplatelets as an ultrasensitive probe for lead ion sensing[J]. Nanoscale,2019,11(19):9327-9334.
APA Xiongbin Wang,Junjie Hao,Jiaji Cheng,Junzi Li,Jun Miao,Ruxue Li,Yiwen Li,Jiagen Li,Yuhui Liu,Xi Zhu,Yanjun Liu,Xiao Wei Sun,Zikang Tang,Marie-Hélène Delville,Tingchao He,&Rui Chen.(2019).Chiral CdSe nanoplatelets as an ultrasensitive probe for lead ion sensing.Nanoscale,11(19),9327-9334.
MLA Xiongbin Wang,et al."Chiral CdSe nanoplatelets as an ultrasensitive probe for lead ion sensing".Nanoscale 11.19(2019):9327-9334.
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