نتایج جستجو برای: nipaam

تعداد نتایج: 130  

یکی از چالش‌های پایه‎ای در مهندسی بافت، انتخاب نوع بسپار و طراحی ساختار مناسب برای هیدروژل‌ها است. در این بررسی، برای ساخت بسترهای هیدروژلی با قابلیت‎تزریق، حساس به گرما، ویژگی فیزیکی و مکانیکی مشابه با بافت‌های نرم بدن، هیدروژل ان-ایزوپروپیل آکریل آمید/ اکریلیک اسید/ ان-اکریلوسوکسینامید/2-هیدروکسی‎اتیل متاکریلات‌پلی‌لاکتید (NIPAAm/AAC/NAS/HEMAPLA) با روش بسپارش حلقه باز در نسبت‌های مولی متفاوت...

Journal: :Biotechnology progress 1998
H Lee T G Park

Novel temperature-sensitive polymers containing glucose units in their backbone were synthesized and covalently conjugated to trypsin. A series of copolymers based on N-isopropylacrylamide (NIPAAm) and glucosyoxylethyl methacrylate (GEMA) were prepared by using 4,4'-azobis(4-cyanovaleric acid) as an initiator, which resulted in one terminal carboxylic acid group per polymer chain. The polymers ...

Journal: :Journal of Nanobiotechnology 2007
Savita Bisht Georg Feldmann Sheetal Soni Rajani Ravi Collins Karikar Amarnath Maitra Anirban Maitra

BACKGROUND Curcumin, a yellow polyphenol extracted from the rhizome of turmeric (Curcuma longa), has potent anti-cancer properties as demonstrated in a plethora of human cancer cell line and animal carcinogenesis models. Nevertheless, widespread clinical application of this relatively efficacious agent in cancer and other diseases has been limited due to poor aqueous solubility, and consequentl...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2012
Eunice Costa Margaret M Lloyd Caroline Chopko Ana Aguiar-Ricardo Paula T Hammond

The layer-by-layer (LbL) assembly of polyelectrolyte pairs on temperature and pH-sensitive cross-linked poly(N-isopropylacrylamide)-co-(methacrylic acid), poly(NIPAAm-co-MAA), microgels enabled a fine-tuning of the gel swelling and responsive behavior according to the mobility of the assembled polyelectrolyte (PE) pair and the composition of the outermost layer. Microbeads with well-defined mor...

Journal: :Soft matter 2014
Clinton G Wiener R A Weiss Bryan D Vogt

The thin film behavior of poly(N-isopropylacrylamide-stat-2-(N-ethylperfluorooctane sulfonamido)ethyl acrylate) (NIPAAm-stat-FOSA) based hydrogels containing 5 mol% FOSA was elucidated using quartz crystal microbalance with dissipation (QCM-D) in combination with spectroscopic ellipsometry (SE) through examination of the lower critical solution temperature (LCST) and temperature dependent swell...

2010
Indranil Banerjee Debasish Mishra Tapas K. Maiti

Introduction Wound pH influences residence time and activity of growth factors in healing [1]. Hence, pH responsive sustained release growth factor delivery system capable of modulating release pattern in response to varying wound pH is beneficial for treatment of wound. Thus, potential of poly (N-iso propylacrylamide-co-acrylic acid) hydrogel as pH sensitive sustained release system for wound ...

2011
Mohd. Ali Sanjar Alam S. Ahmad A. K. Dinda F. J. Ahmad Farhan Jalees Ahmad

A rapid, sensitive and stability-signifying high-performance thin-layer chromatographic (HPTLC) method was developed and validated for the quantitative estimation of ivermectin (IVM) as a bulk drug and in pharmaceutical formulations. The separation was achieved on Lichrospher TLC aluminum plates pre-coated with silica gel 60F-254 (20cm×10cm×200 μm) using n-hexane: acetone: ethylacetate (6.5: 3....

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