نتایج جستجو برای: hydrophilic polymers

تعداد نتایج: 84344  

H Mehrgan SA Mortazavi

In this study, the effects of various hydrophilic (HPMC and Carbopol 971) and plastic (Ethylcellulose and Eudragit RL100) polymers on the release profile of diltiazem HCl from matrix tablets were evaluated in-vitro. For this purpose, tablets containing 60 mg of diltiazem HCl along with various amounts of the aforementioned polymers were prepared using the wet granulation technique. Tablets prep...

Bhanudas Shankar Kuchekar Minal Narkhede,

       Purpose of this study was to investigate the effect of the presence of the water soluble polymers viz HPMC, PVP and PEG 6000 on aqueous solubility and complexation abilities of felodipine with or without presence of β-cyclodextrin (βCD) and HPβCD by phase solubility studies. The data revealed the initial increase in drug solubility followed by plateau in t...

2006
B. S. Panigrahy A. Rana P. Chang S. Panigrahi

Flax fibres are oftenly used for reinforcing thermoplastic to manufacture biocomposite materials exhibiting numerous advantages such as high mechanical properties, low density and biodegradability. The mechanical properties of a biocomposite material depends on the nature and orientation of the fibres, the nature of the matrix and mainly on the adhesion between fiber and the polymer matrix. The...

2013
Julie Shi Joan G Schellinger Suzie H Pun

The complex nature of in vivo gene transfer establishes the need for multifunctional delivery vectors capable of meeting these challenges. An additional consideration for clinical translation of synthetic delivery formulations is reproducibility and scale-up of materials. In this review, we summarize our work over the last five years in developing a modular approach for synthesizing peptide-bas...

Journal: :Indian Journal of Pharmaceutical Education and Research 2023

Abstract: Background: The objective of this current study was to fabricate and characterize the sustained release double layered transdermal patches Diclofenac Diethylamine using hydrophobic acrylic polymer Eudragit RL 100 hydrophilic Polyvinyl pyrrolidone K-30 in combination as first layer matrix type patch pressure sensitive adhesive Duro Tak 387- 2510 second drug-in-adhesive provide anti-inf...

Journal: :ACS applied materials & interfaces 2013
Bizan N Balzer Samantha Micciulla Samuel Dodoo Maximilian Zerball Markus Gallei Matthias Rehahn Regine V Klitzing Thorsten Hugel

Polymer coatings are frequently utilized to control and modify substrate properties. The performance of the coatings is often determined by the first polymer layers between the substrate and the bulk polymer material, which are termed interphase. Standard methods have failed to completely characterize this interphase, because its properties change significantly over a few nanometers. Here we de...

2017
Si‐Fen Yang Zi‐Tong Liu Zheng‐Xu Cai Matthew J. Dyson Natalie Stingelin Wei Chen Hua‐Jun Ju Guan‐Xin Zhang De‐Qing Zhang

Side chain engineering of conjugated donor-acceptor polymers is a new way to manipulate their optoelectronic properties. Two new diketopyrrolopyrrole (DPP)-terthiophene-based conjugated polymers PDPP3T-1 and PDPP3T-2, with both hydrophilic triethylene glycol (TEG) and hydrophobic alkyl chains, are reported. It is demonstrated that the incorporation of TEG chains has a significant effect on the ...

Journal: :The Analyst 2016
Yan-Yun Li Xiao-Qin Jiang Min Zhang Guoyue Shi

In this work, we prepared a type of thioflavin T (ThT)-doped lanthanide/nucleotide coordination polymer by the self-assembly of ThT, europium ions (Eu(3+)) and nucleotides (guanosine monophosphate, GMP) in aqueous solution (i.e. ThT/Eu/GMP). The Eu/GMP coordination polymers show excellent adaptive inclusion properties for ThT in a convenient one-step approach, which can readily enhance the fluo...

Journal: :Nanoscale 2015
J Zhu Y Han R Kumar Y He K Hong P V Bonnesen B G Sumpter S C Smith G S Smith I N Ivanov C Do

Rationally encoding molecular interactions that can control the assembly structure and functional expression in a solution of conjugated polymers hold great potential for enabling optimal organic optoelectronic and sensory materials. In this work, we show that thermally-controlled and surfactant-guided assembly of water-soluble conjugated polymers in aqueous solution is a simple and effective s...

2008
A. Fuchs J. Sutrisno C. Evrensel F. Gordaninejad B. Kavlicoglu Y. Liu

The currently available PEMs are suitable for use at maximum 80C because of the requirement of the presence of water for proton conductivity. However, for emerging applications, a fuel cell operating at temperatures as high as 120 C is required. This can possibly be achieved by creating novel PEMs. Supramolecular polymers are being investigated extensively and may be conjugated with heteropolya...

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