Chem. J. Chinese Universities ›› 2022, Vol. 43 ›› Issue (4): 20210855.doi: 10.7503/cjcu20210855

• Polymer Chemistry • Previous Articles     Next Articles

Preparation and Properties of Gold Nanocages/Hyaluronic Acid Core-shell Nanocarriers with pH/Enzyme/ Photothermal Multiple Responses

FAN Xiaohui, WANG Yang, YANG Yuanyuan, ZHANG Yuhong()   

  1. State Key Labortory of Biocatalysis and Enzyme Engineering,College of Chemistry and Chemical Engineering,Hubei University,Wuhan 430062,China
  • Received:2021-12-23 Online:2022-04-10 Published:2022-01-26
  • Contact: ZHANG Yuhong E-mail:zhangyuhong@hubu.edu.cn
  • Supported by:
    the Open Funding Project of the State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei University, China(SKLBEE2019018)

Abstract:

The core-shell nano drug loaded particle DOX@AuNC@HA(DAH) was prepared by a simple one pot method using gold nanocage(AuNC) as the core, sulfhydryl modified hyaluronic acid(LC-HA) as the shell and doxorubicin hydrochloride(DOX) as the drug model. The gold nanocage provides a container for drug loading and endows the carrier with photothermal properties. The modified hyaluronic acid encapsulates the gold nanocage and provides pH/enzyme response and targeted mediating functions. The structure of DAH was characterized, and the drug loading, controlled release performances, cell uptake and cytotoxicity were studied. The results show that the DAH nanoparticles with the core-shell structures have a high drug loading capacity, a good cycle stability and excellent photothermal conversion efficiency under the irradiation of laser source. In phosphate buffer solution with a pH of 7.4, DAH has high stability, the DOX leakage ratio in 20 h is less than 20%; and DAH exhibits good stimulus response and can release the loaded drug quickly in acidic, hyaluronidase and photothermal action environment. In addition, DAH is more easily uptaken by tumor cells in cell experiments, which demonstrates certain targeting, showing better stimulus responsiveness. When chemotherapy and photothermal therapy works together, the activity of tumor cells is greatly weakened, showing the advantages and potential of combined therapy.

Key words: Multiple responsiveness, Photothermal therapy, Core-shell structure, Nanocapsulators

CLC Number: 

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