Supramolecular chemistry at interfaces Host-guest interactions for attaching PEG and 5-fluorouracil to the surface of porous nanosilica

Porous nanosilica (PNS) has been attracting much attention in fabrication of nanocarriers for a drug delivery system (DDS). However, the unmodified PNS-based carriers exhibited a significant initial burst release of drug, which may limit their potential clinical application. In this study, PNS was surface conjugated with cyclodextrin (CD) which was functionalized with adamantylamine-polyethylene glycol (APEG) for 5-fluorouracil (5-FU) delivery, in which case CD was used due to its ability to form a stable inclusion complex with 5-FU and APEG. The conjugated PNS (PNSC@APEG) was successfully prepared with spherical shape and diameter around 50 nm, determined by transmission electron microscopy (TEM). In addition, 5-FU was efficiently trapped in PNSC@APEG particles, which were around 63.4%±3.8% and was slowly released up to 3 days in phosphate buffer saline (PBS). Furthermore, the cell proliferation kit I (MTT) assay data showed that PNSC@APEG was a biocompatible nanocarrier. These results indicated that PNSC@APEG nanoparticles have a great potential as novel carriers for anticancer drug delivery.

Title: Supramolecular chemistry at interfaces Host-guest interactions for attaching PEG and 5-fluorouracil to the surface of porous nanosilica
Authors: Tran, T.V.
Vo, U.V.
Pham, D.Y., (...)
Thu, L.V.
Nguyen, D.H.
Keywords: 5-fluorouracil, cancer therapy, drug delivery systems, porous nanosilica
Issue Date: 2016
Publisher: Walter de Gruyter GmbH
Citation: Scopus
Abstract: Porous nanosilica (PNS) has been attracting much attention in fabrication of nanocarriers for a drug delivery system (DDS). However, the unmodified PNS-based carriers exhibited a significant initial burst release of drug, which may limit their potential clinical application. In this study, PNS was surface conjugated with cyclodextrin (CD) which was functionalized with adamantylamine-polyethylene glycol (APEG) for 5-fluorouracil (5-FU) delivery, in which case CD was used due to its ability to form a stable inclusion complex with 5-FU and APEG. The conjugated PNS (PNSC@APEG) was successfully prepared with spherical shape and diameter around 50 nm, determined by transmission electron microscopy (TEM). In addition, 5-FU was efficiently trapped in PNSC@APEG particles, which were around 63.4%±3.8% and was slowly released up to 3 days in phosphate buffer saline (PBS). Furthermore, the cell proliferation kit I (MTT) assay data showed that PNSC@APEG was a biocompatible nanocarrier. These results indicated that PNSC@APEG nanoparticles have a great potential as novel carriers for anticancer drug delivery.
Description: Green Processing and Synthesis Volume 5, Issue 6, 1 December 2016, Pages 521-528
URI: https://www.degruyter.com/view/j/gps.2016.5.issue-6/gps-2016-0049/gps-2016-0049.xml
http://repository.vnu.edu.vn/handle/VNU_123/34061
ISSN: 21919542
Appears in Collections:Bài báo của ĐHQGHN trong Scopus

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