نتایج جستجو برای: liposome characterization

تعداد نتایج: 381014  

2011
Hiroshi Umakoshi Tomoyuki Tanabe Keishi Suga Huong Thi Bui Toshinori Shimanouchi Ryoichi Kuboi

Oxidative stress can affect in vitro GFP expression through its control of the gene silencing effect of the liposome prepared by 1,2-dioleoyl-3-trimethyl-ammonium propane (DOTAP). The gene silencing effect of cationic DOTAP liposome in in vitro GFP expression, especially focusing on its translation process, and the effects of oxidative stress on its silencing effect were investigated. GFP expre...

2007
Jintanaporn Wattanathorn

At present, the effects of quercetin liposome on anxiolytic activity and cognitive function are unclearly known. In this study, male Wistar rats were administered quercetin liposome via intranasal route once daily continually for 4 weeks. The anxiolytic activity and cognitive enhancing effect were determined after single administration, 1, 2, 3 and 4 weeks of treatment using elevated plus maze ...

Journal: :Chemistry Letters 1980

Journal: :Biophysical journal 2000
E C Yan K B Eisenthal

The effect of cholesterol on the molecular transport of an organic cation, malachite green (MG), across large unilamellar dioleolyphosphatidylglycerol (DOPG) liposome bilayers with 0-50 mol% cholesterol was studied by second harmonic generation (SHG). Because SHG is a surface-specific technique, it requires no labeled molecule, quencher, or shifting agent to distinguish the location of the solu...

Journal: :iranian journal of pharmaceutical research 0
h tabandeh r aboofazelia z ghasemi

combination formulations of liposomes with collagen have been previously introduced as a means of obtaining more stable and less permeable liposomes. in this study, the effect of aqueous solutions of the collagen products collapur? (col) and collapuron-dak? (cold) from henkle co., on the release rate of sodium chromate (chr) as a water-soluble model drug from stable plurilamellar vesicles (splv...

Journal: :pharmaceutical and biomedical research 0
ebrahim saadat department of pharmaceutics, faculty of pharmacy, mazandaran university of medical sciences, sari, iran rassoul dinarvand department of pharmaceutics, faculty of pharmacy, mazandaran university of medical sciences, sari, iran pedram ebrahimnejad department of pharmaceutics, faculty of pharmacy, mazandaran university of medical sciences, sari, iran

in this study, nystatin liposomal formulation was prepared and characterized. the physicochemical properties of formulations including vesicle size, drug entrapment stability and in vitro release were studied. the highest entrapment efficiency of nystatin into liposomes was obtained about 70% when cholesterol (cho) was added to the formulations prepared with dipalmitoylphosphatidylcholine. in a...

Journal: :Processes 2021

Medical and pharmaceutical research has shown that liposomes are very efficient in transporting drugs to targets. In this study, we prepared six liposome formulas, three which entrapped caffeic acid (CA), with only phospholipids without CA. Determination of entrapment efficiency (EE) showed regardless the used, percentage CA was up 76%. The characterization performed using Dynamic Light Scatter...

2015
Chih-Hsien Chang Shin-Yi Liu Chih-Wen Chi Hsiang-Lin Yu Tsui-Jung Chang Tung-Hu Tsai Te-Wei Lee Yu-Jen Chen

External beam radiotherapy (EBRT) treats gross tumors and local microscopic diseases. Radionuclide therapy by radioisotopes can eradicate tumors systemically. Rhenium 188 ((188)Re)-liposome, a nanoparticle undergoing clinical trials, emits gamma rays for imaging validation and beta rays for therapy, with biodistribution profiles preferential to tumors. We designed a combinatory treatment and ex...

2015
Menghua Gao Yuzhen Xu Liyan Qiu

A novel composite liposomal system co-encapsulating paclitaxel (PTX) with chloroquine phosphate (CQ) was designed for treating PTX-resistant carcinoma. It was confirmed that liposomal CQ can sensitize PTX by means of autophagy inhibition and competitively binding with multidrug-resistance transporters. Furthermore, according to the in vitro cytotoxicity and apoptosis assay, real-time observatio...

2013
Aline de Carvalho Varjão Mota Zaida Maria Faria de Freitas Eduardo Ricci Júnior Gisela Maria Dellamora-Ortiz Ralph Santos-Oliveira Rafael Antonio Ozzetti André Luiz Vergnanini Vanessa Lira Ribeiro Ronald Santos Silva Elisabete Pereira dos Santos

UNLABELLED Solar radiation causes damage to human skin, and photoprotection is the main way to prevent these harmful effects. The development of sunscreen formulations containing nanosystems is of great interest in the pharmaceutical and cosmetic industries because of the many potential benefits. This study aimed to develop and evaluate an octyl methoxycinnamate (OMC) liposomal nanosystem (lipo...

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