Tailoring chemical compositions of biodegradable mesoporous organosilica nanoparticles for controlled slow release of chemotherapeutic drug

• Published in: Materials Science & Engineering C Vol. 127; p. 112232
• Main Authors: Mai, Ngoc Xuan Dat, Nguyen, Thu-Ha Thi, Vong, Long Binh, Dang, Minh-Huy Dinh, Nguyen, Trang Thi Thu, Nguyen, Linh Ho Thuy, Ta, Hanh Kieu Thi, Nguyen, Thi-Hiep, Phan, Thang Bach, Doan, Tan Le Hoang
• Format: Journal Article
• Language: English
• Published: Lausanne Elsevier B.V 01.08.2021; Elsevier BV
• Subjects: Aromatic compounds; Biodegradability; Biodegradable; Biodegradation; Chemical composition; Controlled slow release; Cordycepin; Cytotoxicity; Drug delivery; Ethane; Gelatin; Hepatocytes; Hyaluronic acid; Hydrogels; Liver cancer; Materials science; Nanoparticles; Phenylene silica; Physicochemical properties; Side effects; Strong interactions (field theory); Toxicity; Drug delivery; Biodegradable; Phenylene silica; Cordycepin; Controlled slow release
• DOI: 10.1016/j.msec.2021.112232
• ISSN: 0928-4931

Biodegradable periodic mesoporous organosilica nanoparticles (B-PMO) are an outstanding nanocarrier due to their biodegradability and high drug load capacities. The present study describes a synthesis of a phenylene-containing tetrasulfide based B-PMO, named P4S. The incorporation of aromatic phenylene groups into the framework creates a strong interaction between nanoparticles (NPs) with aromatic rings in the cordycepin molecules. This results in the low release profile under various conditions. In addition, the replacement of this linker slowed the degradation of nanoparticles. The physicochemical properties of the nanoparticles are evaluated and compared with a biodegradable ethane-containing tetrasulfide based PMO and a non-degradable MCM-41. The biodegradability of P4S is also demonstrated in a reducing environment and the 100 nm spherical nanoparticles completely decomposed within 14 days. The porous structure of P4S has a high loading of hydrophilic cordycepin (approximately 731.52 mg g−1) with a slow releasing speed. The release rates of P4S NPs are significantly lower than other materials, such as liposomes, gelatin nanoparticles, and photo-crosslinked hyaluronic acid methacrylate hydrogels, in the same solution. This specific release behavior could guarantee drug therapeutic effects with minimum side-effects and optimized drug dosages. Most importantly, according to the in vitro cytotoxicity study, cordycepin-loaded P4S NPs could retain the toxicity against liver cancer cell (HepG2) while suppressed the cytotoxicity against normal cells (BAEC). Phenylene-containing tetrasulfide biodegradable mesoporous organosilica nanoparticles shows a high cordycepin loading with a slow releasing speed and a great biodegradability in the reducing environment. [Display omitted] •A nanocarrier is synthesized by incorporating two organic moieties into the framework.•The presence of aromatic rings slows the degradation up to 2 weeks.•The nanocarrier has a high cordycepin loading with a slow releasing speed.