title: The fluorescent interactions between amphiphilic chitosan derivatives and water-soluble quantum dots.
abstract: The LCC-CdTe quantum dots (QDs) hybrid was fabricated by mixing the N-lauryl-N, O-carboxymethyl chitosan (LCC) micelle with water-soluble CdTe QDs in an aqueous solution via hydrophobic forces and the electronic attraction. The structures of LCC and LCC-CdTe QDs hybrid were determined by differential scanning calorimetry (DSC), Fourier transform infrared (FT-IR) spectroscopy and transmission electron microscopy (TEM). The results showed that the lauryl and carboxymethyl were successfully grafted to chitosan oligosaccharide (CSO), and a number of CdTe QDs were encapsulated by LCC micelle to form a core/shell structure. The tested results of the fluorescent characteristics of LCC, CdTe QDs and LCC-CdTe QDs hybrid showed that there were some obvious fluorescent interactions between LCC and CdTe QDs. Meanwhile, with the change in LCC space structure, the fluorescent interactions between LCC and QDs showed different fluorescent characteristics. The QDs fluorescent (FL) intensity increased first and then decreased to almost quenching, while LCC FL intensity decreased continually.
authors.affiliation: Colleges of Science, Tianjin Chengjian University, Tianjin 300384, China; School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
authors.forename: Xuening
authors.initials: X
authors.lastname: Fei
authors.affiliation: School of Materials Science and Engineering, Tianjin Chengjian University, Tianjin 300384, China.
authors.forename: Miaozhuo
authors.initials: M
authors.lastname: Yu
authors.affiliation: School of Materials Science and Engineering, Tianjin Chengjian University, Tianjin 300384, China. Electronic address: feixuening123@163.com.
authors.forename: Baolian
authors.initials: B
authors.lastname: Zhang
authors.affiliation: Colleges of Science, Tianjin Chengjian University, Tianjin 300384, China. Electronic address: caolinyun54@126.com.
authors.forename: Lingyun
authors.initials: L
authors.lastname: Cao
authors.affiliation: Colleges of Science, Tianjin Chengjian University, Tianjin 300384, China.
authors.forename: Lu
authors.initials: L
authors.lastname: Yu
authors.affiliation: Colleges of Science, Tianjin Chengjian University, Tianjin 300384, China.
authors.forename: Guozhi
authors.initials: G
authors.lastname: Jia
authors.affiliation: Colleges of Science, Tianjin Chengjian University, Tianjin 300384, China.
authors.forename: Jianguo
authors.initials: J
authors.lastname: Zhou
mesh_terms: D019187:Cadmium Compounds / Q000737:chemistry*; D048271:Chitosan / Q000031:analogs & derivatives* / Q000737:chemistry; D005453:Fluorescence; D005456:Fluorescent Dyes / Q000737:chemistry*; D045663:Quantum Dots / Q000737:chemistry* / Q000648:ultrastructure; D012995:Solubility; D013691:Tellurium / Q000737:chemistry*; D014867:Water / Q000737:chemistry
chemical_list: D019187:Cadmium Compounds; D005456:Fluorescent Dyes; C504164:O-carboxymethylchitosan; D014867:Water; D048271:Chitosan; D013691:Tellurium; C028337:cadmium telluride
keywords: Amphiphilic chitosan; CdTe QDs; Encapsulation; Fluorescent interactions