journal article·2015-11-24

Self-Targeting Fluorescent Carbon Dots for Diagnosis of Brain Cancer Cells

Min Zheng, Shaobo Ruan, Shi Liu, Tingting Sun, Dan Qu, Haifeng Zhao, Zhigang Xie, Huile Gao, Xiabin Jing, Zaicheng Sun

ACS Nano· Volume 9· Issue 11
Publisher page

Abstract

A new type of carbon dots (CD-Asp) with targeting function toward brain cancer glioma was synthesized via a straightforward pyrolysis route by using D-glucose and L-aspartic acid as starting materials. The as-prepared CD-Asp exhibits not only excellent biocompatibility and tunable full-color emission, but also significant capability of targeting C6 glioma cells without the aid of any extra targeting molecules. In vivo fluorescence images showed high-contrast biodistribution of CD-Asp 15 min after tail vein injection. A much stronger fluorescent signal was detected in the glioma site than that in normal brain, indicating their ability to freely penetrate the blood-brain barrier and precisely targeting glioma tissue. However, its counterparts, the CDs synthesized from D-glucose (CD-G), L-asparic acid (CD-A), or D-glucose and L-glutamic acid (CD-Glu) have no or low selectivity for glioma. Therefore, CD-Asp could act as a fluorescence imaging and targeting agent for noninvasive glioma diagnosis. This work highlights the potential application of CDs for constructing an intelligent nanomedicine with integration of diagnostic, targeting, and therapeutic functions.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Carbon and Quantum Dots Applications · Advanced biosensing and bioanalysis techniques · Graphene and Nanomaterials Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Chemistry and Life Science School, Advanced Institute of Materials Science, Changchun University of Technology, 2055 Yanan Street, Changchun, Jilin 130012, People’s Republic of China

State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics, and Physics, Chinese Academy of Sciences, 3888 East Nanhu Road, Changchun, Jilin 130033, People’s Republic of China

State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, Jilin 130022, People’s Republic of China

Key Laboratory of Drug Targeting and Drug Delivery Systems, West China School of Pharmacy, Sichuan University, No. 17 Block 3, Southern Renmin Road, Chengdu, 610041, People’s Republic of China

University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China

Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry and Chemical Engineering, Beijing University of Technology, Beijing 100124, People’s Republic of China

Funding

Chinese Academy of Sciences · Changchun Institute of Applied Chemistry · National Natural Science Foundation of China · Jilin Province · State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute Of Applied Chemistry

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