نتایج جستجو برای: hydrogel nanocomposite

تعداد نتایج: 26410  

Journal: :Journal of Polymer Science 2022

Crystallization-driven self-assembly (CDSA) was employed for the preparation of monodisperse cationic cylindrical nanoparticles with controllable sizes, which were subsequently explored their effect on antibacterial activity and mechanical properties nanocomposite hydrogels. Poly(ɛ-caprolactone)-block-poly(methyl methacrylate)-block-poly[2-(tert-butylamino) ethyl methacrylate] (PCL-b-PMMA-b-PTA...

Journal: :Chemical Papers 2022

Abstract Green nanocomposite hydrogels (ST-PHEMA/GO) comprised of starch and 2-Hydroxyethyl methacrylate (HEMA) reinforced with different ratios graphene oxide (GO) were prepared via gamma radiation induced crosslinking polymerization. The chemical structure morphology the crystallinity studied by FTIR FE-SEM, AFM, TEM XRD, respectively. swelling behavior claimed was verified versus time pH-dep...

Journal: :Journal of Research in Nanoscience and Nanotechnology 2022

The advancement of clinical medicine established exceptionally in today’s era is used to cure many infectious diseases. Unfortunately, the negative aftermath associated with synthetic drugs has caused turn their attention towards an alternative, which natural plant-extract drugs. Plant-based have a vast number benefits and applications biomedical field are further formulated nanocomposite hydro...

2015
Lei Wang Yang Liu Yao Cheng Xiuguo Cui Huiqin Lian Yongri Liang Fei Chen Hao Wang Wenli Guo Hangquan Li Meifang Zhu Hirotaka Ihara

A hydrogel exhibits a real-time depth-controllable swimming motion via light-mediated modulation of local density to mimic the volume changes found in the bladders of fish. Moreover, other motions, e.g., rolling, somersaulting, and bipedal-like walking, can also be realized by designing or combining gel shapes, and the location of light.

Journal: :Journal of Chemistry 2022

In this study, we prepared novel fluorescent carbon quantum dots/hydrogel nanocomposite material (CQDsHG) with good adsorption and stable fluorescence detection of Fe3+. The materials were subsequently characterized according to their morphological features, chemical composition, adsorption, optical properties. dots (CQDs) using a microwave-assisted hydrothermal method in no more than 15 min, t...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی امیرکبیر(پلی تکنیک تهران) - دانشکده مهندسی پلیمر 1387

استفاده از رس های اصلاح شده در پلیمرها به منظور دستیابی به خواص برتر مکانیکی، حرارتی، نوری و... در چند سال اخیر به شدت توسعه یافته است. اصلاح رس را می توان توسط عوامل شیمیایی کوچک مولکول نظیر ترکیبات آلکیل آمونیوم یا پلیمرهای بلندزنجیر مناسب انجام داد. ترکیبات آلکیل آمونیوم یا سایر کوچک مولکولهایی که برای اصلاح ساختاری رس استفاده می شوند عمدتاً سمّی هستند و به ویژه برای کاربردهای پزشکی نامناسب ان...

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