نتایج جستجو برای: polymeric precursor

تعداد نتایج: 91431  

Journal: :international journal of nano dimension 0
b. khodashenas department of chemical engineering, shahrood branch, islamic azad university, shahrood, iran. h. r. ghorbani department of chemical engineering, qaemshahr branch, islamic azad university, qaemshahr, iran.

developing reliable and eco-friendly processes for the synthesis of metallic nanoparticles is an essential step in the field of application of nanotechnology .using natural factories such as biological systems is a way of developing such processes. nowadays, the synthesis of silver nanoparticles is very common due to its numerous applications in different fields. the synthesis of these nanopart...

Journal: :iranian red crescent medical journal 0
ladan akbarzadeh department of pharmacology, shahid baheshti university of medical sciences, tehran, ir iran; department of pharmacology, shahid baheshti university of medical sciences, tehran, ir iran. fax: +98-22439969 taraneh moini zanjani department of pharmacology, shahid baheshti university of medical sciences, tehran, ir iran masoumeh sabetkasaei department of pharmacology, shahid baheshti university of medical sciences, tehran, ir iran yalda khazaei department of pharmacology, shahid baheshti university of medical sciences, tehran, ir iran

conclusions the results of this study suggest that app reduction by hdacis can apparently play an important role in the treatment of colon cancer. background amyloid precursor protein (app), which is involved in cell proliferation, is observed to be over expressed in human cancer. thus, it is crucial to investigate its role in cancer and suggest treatment strategies to alter its effects on cell...

Journal: :Biological & pharmaceutical bulletin 2013
Kouichi Shiraishi Masayuki Yokoyama

Polymeric micelles are assemblies of synthetic polymers and have been studied and developed as drug carriers for targeting. Polymeric micelles are composed of the inner core and the outer shell, and typically form from AB-type block copolymers in which two polymer blocks are connected in a tandem form. Polyethyleneglycol (PEG) has been most commonly used as one polymer block composing the outer...

Journal: :Electrophoresis 2004
Cevdet Akbay Shahab A Shamsi

The effect of hydrocarbon chain length on chemical selectivity in micellar electrokinetic chromatography (MEKC) was investigated using polymeric sulfated surfactants: poly-(sodium 7-octenyl sulfate), poly(sodium 8-nonenyl sulfate), poly(sodium 9-decenyl sulfate), and poly(sodium 10-undecenyl sulfate). Linear solvation energy relationships (LSERs) and free energy of transfer studies were conduct...

2017
Naoki Doi Yasushi Sasai Yukinori Yamauchi Tetsuo Adachi Masayuki Kuzuya Shin-ichi Kondo

We developed the novel polymeric prodrugs synthesized by mechanochemical solid-state copolymerization of glucose-based polysaccharides (dextran orglycogen) and the methacryloyloxy derivative of 5-fluorouracil (5-FU). The copolymerization proceededreadily and each polymeric prodrug was quantitatively obtained within8 h reaction. The number average molecular weight (Mn) and polydispersity (H) of ...

The nanostructured anatase TiO2 with high thermal stability was prepared by polymeric sol-gel method without any additives. The particle size distribution of polymeric titania sol was determined by dynamic light scattering (DLS). Then properties of obtained titania were investigated by TG-DTA, XRD, FESEM and TEM. Also, the decolorization capability of resultant anatase was evaluated using methy...

Journal: :European Polymer Journal 2022

Organic-inorganic hybrid materials combine the advantages of both phases: hardness and strength inorganic phase elasticity toughness organic matrix. In present study, we have prepared nanocomposites with a poly(thiourethane) polymeric matrix silsesquioxane-type structures, thiols as reactive groups (POSS-A or POSS-B, synthesized in different pressure conditions), looking for covalent interactio...

Journal: :Chemical communications 2012
Changhua Li Shiyong Liu

Fluorescent polymeric assemblies and nanoparticles (NPs) of nanoscale dimensions have become a focus of intensive investigations during the past few decades due to combined advantages such as improved biocompatibility, water dispersibility, stimuli-responsiveness, facile integration into optical detection devices, and the ability of further functionalization. In addition, the chemical compositi...

Journal: :Nanoscale 2015
Xiaoyong Zhang Ke Wang Meiying Liu Xiqi Zhang Lei Tao Yiwang Chen Yen Wei

The development of polymeric luminescent nanomaterials for biomedical applications has recently attracted a large amount of attention due to the remarkable advantages of these materials compared with small organic dyes and fluorescent inorganic nanomaterials. Among these polymeric luminescent nanomaterials, polymeric luminescent nanomaterials based on dyes with aggregation-induced emission (AIE...

Journal: :nanomedicine journal 0
mahya rahmani department of medical nanotechnology, school of advanced technologies in medicine, tehran university of medical sciences, tehran, iran sepideh arbabi bidgoli department of toxicology and pharmacology, islamic azad universtiy, pharmaceutical sciences branch (iaups), tehran, iran pharmaceutical sciences research center, islamic azad university, pharmaceutical sciences branch (iaups), tehran, iran seyed mahdi rezayat department of medical nanotechnology, school of advanced technologies in medicine, tehran university of medical sciences, tehran, iran department of toxicology and pharmacology, islamic azad universtiy, pharmaceutical sciences branch (iaups), tehran, iran

conventional transdermal drug delivery systems (tdds) have been designed for drug delivery through the skin. these systems use the permeability property of stratum corneum, the outermost surface layer of the skin. applying polymeric micro and nanofibers in drug delivery has recently attracted great attention and the electrospinning technique is the preferred method for polymeric micro-nanofiber...

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