Enhancement of Hydrophilicity in Poly-lactic Glycolic Acid Electrospun Nanofibrous Web

Document Type : Research Article

Authors

1 Amir Kabir University

2 Medical University of Tehran

AMNC.2017.5.20.4

Abstract

In this study plasma technology was applied on poly-lactic glycolic acid scaffolds to improve their hydrophilicity. The structure of nanofibrous web is modified using a high speed collector is electrospinning process. The general electrospun scaffold was compared with two types of plasma modified and structure modified scaffolds in hydrophilicity view point. Two types of solvents were used for electrospinning solution. The first was pure chloroform and the second was chloroform-dimethyl formaldehyde. We found that the samples that were electrospun with higher collector speed show lower contact angle and consequently higher hydrophilicity. The high speed of collector causes an aligned and regular web formation that improves the hydrophilicity of the electrospun nanofibous scaffold. The results of ATR-FTIR spectra showed that the samples modified by plasma shows enhancement in C=O and C-O groups that can be the reason of hydrophilicity enhancement of scaffolds.

Keywords

Main Subjects


[1] زمانی، ف.، "مهندسی مشخصه‌های ساختمانی داربست نانو الیاف PLGA جهت کشت سلول عصبی"، رساله‌ی دکتری، دانشکده مهندسی نساجی، دانشگاه صنعتی امیرکبیر، 1391.
[2] Ryu, G. H., Yang, W. S., Roh, H. W., Lee, I. S., Kim, J. K., Lee, D. H., Park, B. J., Lee, M. S. and Park, J. C., "Plasma surface modification of poly (d,l-lactic-co-glycolic acid) (65/35) film for tissue engineering", Surface & Coatings Technology 193 60– 64, 2005.
[3] قاسمی مبارکه، ل.، "ساخت داربست‌های نانوالیاف جهت مهندسی بافت سلول‌های عصبی"، رساله‌ی دکتری، دانشکده مهندسی نساجی، دانشگاه صنعتی اصفهان، 1388.‌
[4] Solouk, A., Brian, G. C., Mirzadeh, H. and Seifalian, M. A., "Application of Plasma Surface Modification Techniques to Improve Hemocompatibility of Vascular Grafts: A Review ", Published online in Wiley Online Library, 58(5), 311-327, 2011.
 [5] خوشدل، ن.، "نیتروژن-کربن دهی پلاسمایی توسط توری فعال"، سمینار کارشناسی ارشد، دانشکده مهندسی معدن متالوژی و نفت، دانشگاه صنعتی امیرکبیر، 1385.
[6] Morent, R., Nathalie, D. G., Tim, D., Peter, D. and Christophe, L., "Plasma Surface Modification of Biodegradable Polymers: A Review", Plasma Process. Polym, 2011, 8, 171–190.
[7] Wan, Y and Qu, X., "Characterization of Surface Property of Poly(lactide-co-glycolide) after Oxygen Plasma Treatment", Biomaterials, 2004, 25, 4777–4783.
[8] Huang, F. L., Wang, Q. Q., Wei, Q. F, Gao, W. D., Shou, H. Y. and Jiang, S. D., "Dynamic wettability and contact angles of poly(vinylidene fluoride)nanofiber membranes grafted with acrylic acid", DOI:10.3144/expresspolymlett.,69, 2010.
[9] Desai, T. A., "Micro and Nanoscale Structures for Tissue Engineering Constructs", Medical Engineering & physics, Vol. 22, pp. 595-606, 2000.
[10] Sill, T. J. and Recum, H. A. V., "Electrospinning: Applications in Drug Delivery and Tissue Engineering", Biomaterials, Vol. 29(13), 1989-2006, 2008.
[11] Ramakrishna, S., Fujihara, K., Teo, W. E., Lim, T. C. and Ma, Z., "An Introduction to Electrospinning and Nanofibers", World scientific publishing Singapore, 2005.
[12] دونالد، پ.، گری، ل.، جورج، ک. و برهمن، م.، "نگرشی بر طیف سنجی"، انتشارات علمی و فنی، تهران، ویرایش اول، 1372.