نتایج جستجو برای: thermoreversible gels

تعداد نتایج: 22883  

Journal: :Dalton transactions 2016
Rajendhraprasad Tatikonda Sandip Bhowmik Kari Rissanen Matti Haukka Massimo Cametti

Terpyridine based ligands 1 and 2, decorated with a C8F17 perfluorinated tag, are able to form stable thermoreversible gels in the presence of several d-block metal chloride salts. The gel systems obtained have been characterized by NMR, X-ray diffraction, electron microscopies and Tgel experiments in order to gain insights into the observed different behaviour of the two similar ligands, also ...

Journal: :Colloids and Surfaces A: Physicochemical and Engineering Aspects 2021

Thermoreversible hydrogels are widely used in foods, drug delivery and tissue engineering. Novel shapes/textures out of them being increasingly fabricated using Fused Deposition Modelling (FDM) type 3D printing, where gels extruded layer-by-layer above their gelling temperature followed by cooling. It is crucial to develop a library suitable materials optimise printing conditions ensure good pr...

2017
Juliana Zampoli Boava Papini Cíntia Maria Saia Cereda José Pedrazzoli Júnior Silvana Aparecida Calafatti Daniele Ribeiro de Araújo Giovana Radomille Tofoli

We evaluated pharmacokinetics (PK) and pharmacodynamics (PD) induced by new formulations of tramadol (TR) in thermoreversible gels. The poloxamer- (PL-) tramadol systems were prepared by direct dispersion of the drug in solutions with PL 407 and PL 188. The evaluated formulations were as follows: F1: TR 2% in aqueous solution and F2: PL 407 (20%) + PL 188 (10%) + TR 2%; F3: PL 407 (25%) + PL 18...

2017
Arianna Friggeri Ben L. Feringa Jan van Esch

Gels of low molecular weight gelators (LMWGs) are self-assembled, thermoreversible, viscoelastic materials which can also be rendered sensitive to light, pH or chemical substances by simple chemical modifications. In addition, the ability of some of these LMWGs to gelate water (hydrogelators) makes these gels interesting, new materials for drug delivery applications. In this paper, for the firs...

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