title: Facile preparation of highly luminescent CdTe quantum dots within hyperbranched poly(amidoamine)s and their application in bio-imaging.
abstract: A new strategy for facile preparation of highly luminescent CdTe quantum dots (QDs) within amine-terminated hyperbranched poly(amidoamine)s (HPAMAM) was proposed in this paper. CdTe precursors were first prepared by adding NaHTe to aqueous Cd2+ chelated by 3-mercaptopropionic sodium (MPA-Na), and then HPAMAM was introduced to stabilize the CdTe precursors. After microwave irradiation, highly fluorescent and stable CdTe QDs stabilized by MPA-Na and HPAMAM were obtained. The CdTe QDs showed a high quantum yield (QY) up to 58%. By preparing CdTe QDs within HPAMAM, the biocompatibility properties of HPAMAM and the optical, electrical properties of CdTe QDs can be combined, endowing the CdTe QDs with biocompatibility. The resulting CdTe QDs can be directly used in biomedical fields, and their potential application in bio-imaging was investigated.
authors.affiliation: School of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, People's Republic of China. shiyunfeng2009@gmail.com.
authors.forename: Yunfeng
authors.initials: Y
authors.lastname: Shi
authors.forename: Lin
authors.initials: L
authors.lastname: Liu
authors.forename: Huan
authors.initials: H
authors.lastname: Pang
authors.forename: Hongli
authors.initials: H
authors.lastname: Zhou
authors.forename: Guanqing
authors.initials: G
authors.lastname: Zhang
authors.forename: Yangyan
authors.initials: Y
authors.lastname: Ou
authors.forename: Xiaoyin
authors.initials: X
authors.lastname: Zhang
authors.forename: Jimin
authors.initials: J
authors.lastname: Du
authors.forename: Wangchuan
authors.initials: W
authors.lastname: Xiao