Cyclodextrin- and dendrimer-conjugated graphene oxide as a nanocarrier for the delivery of selected chemotherapeutic and photosensitizing agents

Materials Science & Engineering. C, Materials for Biological Applications
Ampornphan SiriviriyanunLip Yong Chung

Abstract

In this study, nanohybrid materials consisting of graphene oxide (GO), β‑cyclodextrin (CD) and poly(amido amine) dendrimer (DEN) were successfully prepared by covalent bonding. GO-CD and GO-CD-DEN were found to be potential nanocarriers for anticancer drugs including chemotherapeutics (doxorubicin (DOX), camptothecin (CPT)) and photosensitizer (protoporphyrin IX (PpIX)). GO-CD possessed 1.2 times higher DOX-loading capacity than GO due to inclusion of additional DOX to the CD. The drug loading on GO-CD-DEN increased in the order: DOX < PpIX < CPT. Enhanced cytotoxicity of DOX and CPT and also the photocytotoxicity of PpIX were observed when the drugs were loaded in GO-CD and GO-CD-DEN. Functionalization of GO with CD and CD-DEN increased the uptake in cancer cells, and both GO-CD and GO-CD-DEN nanohybrids remained in the cytoplasm and were not uptaken into the nucleus, as shown in the flow cytometry and high-content screening study.

Citations

Jul 24, 2020·Journal of Drug Targeting·Zhijing HeGuangxi Zhai
Feb 6, 2019·Biomaterials Science·André F GirãoPaula A A P Marques
Jul 5, 2018·Chemical Communications : Chem Comm·Artur Kasprzak, Magdalena Poplawska
Aug 9, 2021·Carbohydrate Polymers·Thu Thi Anh DoCarlos Rodríguez-Abreu

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