One-step injectable and bioreducible poly(β-amino ester) hydrogels as controlled drug delivery platforms

Bingol, B., Altuncu, S., Demir Duman, F. , Ak, A., Gulyuz, U., Yagci Acar, H., Okay, O. and Avci, D. (2019) One-step injectable and bioreducible poly(β-amino ester) hydrogels as controlled drug delivery platforms. ACS Applied Polymer Materials, 1(7), pp. 1724-1734. (doi: 10.1021/acsapm.9b00287)

Abstract

A one-step synthesis strategy based on aza-Michael reaction of poly(ethylene glycol) diacrylate (PEGDA) or PEGDA/1,6-hexanediol diacrylate (HDDA) mixture and cystamine was employed to fabricate injectable, biocompatible and degradable novel poly(β-amino ester) (PBAE) hydrogels. The gelation was monitored by real-time dynamic rheological measurements in order to follow formation of the PBAE hydrogel networks. The obtained hydrogels were responsive to both pH and redox state which enabled the control of swelling, degradation and release properties by external triggers. Degradation products of the hydrogels were shown to have no significant cytotoxicity on A549 adenocarcinomic human alveolar basal epithelial cells and MCF-7 human breast cancer cells. The hydrogels were loaded with a photosensitizer, methylene blue (MB), as a model compound by simply adding the MB molecules into the precursor mixture. The activity of released MB was assessed by in vitro photodynamic therapy (PDT) studies conducted with A549 cells.

• Item Type: Articles
• Additional Information: This study was supported by a grant from the Bogazici University Research Fund (Grant no: BAP13842)
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Demir Duman, Dr Fatma
• Authors: Bingol, B., Altuncu, S., Demir Duman, F., Ak, A., Gulyuz, U., Yagci Acar, H., Okay, O., and Avci, D.
• Subjects: Q Science > QD Chemistry
• College/School: College of Science and Engineering > School of Chemistry
• Journal Name: ACS Applied Polymer Materials
• Journal Abbr.: ACS Appl. Polym. Mater.
• Publisher: American Chemical Society
• ISSN: 2637-6105
• ISSN (Online): 2637-6105
• Published Online: 19 June 2019
• Copyright Holders: Copyright © 2019 American Chemical Society
• First Published: First published in ACS Applied Polymer Materials 1(7):1724-1734
• Publisher Policy: Reproduced in accordance with the copyright policy of the publisher