Synthesis, biocompatible, and self-assembly properties of poly (ethylene glycol)/lactobionic acid-grafted chitosan

Polymers with targeted ligands are widely used as the anti-cancer drug delivery materials. For applications of chitosan as an anti-liver cancer drug delivery, poly (ethylene glycol)/lactobionic acid-grafted chitosan (PEG/LA-CS) was prepared and investigated since lactobionic acid can be specifically...

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Published in:Journal of biomaterials science. Polymer ed. 2014-07, Vol.25 (10), p.1062-1075
Main Authors: Song, Xiaoli, Wang, Juan, Luo, Xiadan, Xu, Chunlan, Zhu, Aiping, Guo, Rong, Yan, Caifeng, Zhu, Peizhi
Format: Article
Language:English
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cytocompatibility
electrochemical impedance spectroscopy
hemocompatibility
PEG/LA-CS
self-assembly
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container_end_page 1075
container_issue 10
container_start_page 1062
container_title Journal of biomaterials science. Polymer ed.
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creator Song, Xiaoli
Wang, Juan
Luo, Xiadan
Xu, Chunlan
Zhu, Aiping
Guo, Rong
Yan, Caifeng
Zhu, Peizhi
description Polymers with targeted ligands are widely used as the anti-cancer drug delivery materials. For applications of chitosan as an anti-liver cancer drug delivery, poly (ethylene glycol)/lactobionic acid-grafted chitosan (PEG/LA-CS) was prepared and investigated since lactobionic acid can be specifically recognized by the hepatocytes. The structure of the PEG/LA-CS was characterized by Fourier transform infrared spectrometry and elemental analysis. The self-assembly behaviors of the PEG/LA-CS were monitored by steady-state fluorescence spectroscopy and electronic transmission microscope. The protein adsorption of the PEG/LA-CS was detected with bovine serum albumin (BSA) by electrochemical impedance spectroscopy. The results showed that the PEG/LA-CS almost did not adsorb protein. To study the effects of PEG/LA-CS on the structure of BSA, the interactions between the PEG/LA-CS and BSA were detected by ultraviolet spectrum, fluorescence spectrum, and circular dichroism. All the data gave one result that BSA maintained its original folded confirmation in PEG/LA-CS solution. The hemocompatibility of PEG/LA-CS was investigated by observing the effects of PEG/LA-CS on the hemolysis rate and the plasma recalcification time (PRT). The results showed that the PRT was prolonged greatly and the hemolysis rate was less than 5%. Furthermore, PEG/LA-CS also showed good cytocompatibility with K562, Hep G2, and LO2 cells. Therefore, the PEG/LA-CS is believed to have great potential for producing injectable anti-liver cancer drug delivery.
doi_str_mv 10.1080/09205063.2014.918465
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source Taylor and Francis:Jisc Collections:Taylor and Francis Read and Publish Agreement 2024-2025:Science and Technology Collection (Reading list)
subjects cytocompatibility
electrochemical impedance spectroscopy
hemocompatibility
PEG/LA-CS
self-assembly
title Synthesis, biocompatible, and self-assembly properties of poly (ethylene glycol)/lactobionic acid-grafted chitosan
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