نتایج جستجو برای: نسبت peg

تعداد نتایج: 174256  

Journal: :journal of reports in pharmaceutical sciences 0
katayoun derakhshandeh department of pharmaceutics, faculty of pharmacy, kermanshah university of medical sciences, kermanshah 67149-67346, and nanosciences and technology research center, kermanshah university of medical sciences, kermanshah, iran maryam haghkhah mahmood amiri

9-nitrocamptothecin (9-nc) is a semisynthetic and a low soluble analogue of camptothecin alkaloids that target nuclear enzyme topoisomerase i. the unstable lactone form of 9-nc in biological fluids requires for its cytotoxic activity. to improve aqueous solubility and stability in biological media, 9-nc was loaded in polymeric nanoparticles. in this paper, we studied the effect of peg percent (...

Background: Adapting controlled release technologies to the delivery of DNA has the great potential to overcome extracellular barriers that limit gene delivery. This study investigates the effect of different mass ratio of PLA: PEG in the various tri block poly (lactic acid)-poly (ethylene glycol) - Poly (lactic acid) copolymer (PLA-PEG-PLA) on the properties of the resulting nanoparticles. Me...

Journal: :Journal of clinical microbiology 1993
J P Gibson R M Egerer D L Wiedbrauk

The effect of polyethylene glycol (PEG) on the isolation of Chlamydia trachomatis was evaluated in our laboratory. Initial range-finding experiments demonstrated that the number of chlamydial inclusion bodies increased with increasing PEG concentrations. However, PEG concentrations above 10.5% became progressively more toxic to the McCoy cell monolayers. When 50 frozen clinical Chlamydia isolat...

Journal: :Fundam. Inform. 2016
Roman R. Redziejowski

Parsing Expression Grammar (PEG) encodes a recursivedescent parser with limited backtracking. Its properties are useful in many applications. In its appearance, PEG is almost identical to a grammar in the Extended Backus-Naur Form (EBNF), but may define a different language. Recent research formulated some conditions under which PEG is equivalent to its interpretation as EBNF. However, PEG has ...

Journal: :Buletin Agrohorti 2023

A lot of people in the world choose rice as their main source carbohydrate beside maize and wheat. The increasing population make demand. Increasing demand doesn’t followed by supply. In order to solve that problem, researcher try find a new paddy cultivar which is can be planted dry area. This research aims study osmotic pressure still accepted var. Sintanur, LD50 (lethal dose 50) value especi...

2011
Jye Hae Park SeonKyeong Rhie Su Jin Jeong

PURPOSE Percutaneous endoscopic gastrostomy (PEG) can improve nutritional status and reduce the amount of time needed to feed neurologically impaired children. We evaluated the characteristics, complications, and outcomes of neurologically impaired children treated with PEG. METHODS We retrospectively reviewed the records of 32 neurologically impaired children who underwent PEG between March ...

2016
Chika Kusano Nobuo Yamada Kenji Kikuchi Masaji Hashimoto Takuji Gotoda

BACKGROUND There has been debate over the indications for percutaneous endoscopic gastrostomy (PEG) in recent years in Japan. In addition, the level of satisfaction of patients and patient's family after PEG remains unclear. The aim of this study was to investigate the current status of PEG and the level of satisfaction of patients and patients' families after PEG in Japan. METHODS We reviewe...

2017
Milica Stanković Christine Hiemstra Hans de Waard Johan Zuidema Rob Steendam Henderik W. Frijlink Wouter L.J. Hinrichs

In this study, novel hydrophilic multiblock copolymers composed of semi-crystalline poly(ε-caprolactone) [PCL] blocks and amorphous blocks consisting of poly(D,Llactide) (PDLA) and poly(ethylene glycol) (PEG) [PDLA-PEG] were synthesized. The block ratio of these [PDLA-PEG]-b-[PCL] multiblock copolymers was varied and the degradation of implants prepared of these polymers by hot melt extrusion (...

2017
Xuefeng Qiu Kai Cao Tingsheng Lin Wei Chen Ahu Yuan Jinhui Wu Yiqiao Hu Hongqian Guo

Intravesical instillation of antitumor agents following transurethral resection of bladder tumors is the standard strategy for the treatment of superficial bladder cancers. However, the efficacy of current intravesical instillation is limited partly due to the poor permeability of the urothelium. We therefore aimed to develop a high-penetrating, target-releasing drug delivery system to improve ...

2013
Jianliang Zhou Shidong Hu Jingli Ding Jianjun Xu Jiawei Shi Nianguo Dong

BACKGROUND Poly (ethylene glycol) (PEG) has attracted broad interest for tissue engineering applications. The aim of this study was to synthesize 4-arm -PEG-20kDa with the terminal group of diacrylate (4-arm-PEG-DA) and evaluate its dual functionality for decellularized porcine aortic valve (DAV) based on its mechanical and biological properties. METHODS 4-arm-PEG-DA was synthesized by graft ...

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