نتایج جستجو برای: peg solution
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A semisolid dosage form of clonazepam (CZP), administered to the oral cavity between the lower gum and bottom lip with small volume of saline, was developed to obtain the stable dosage which can replace the injection dosage form. Semisolid dosage forms were prepared using a mixture of CZP/(polyethylene glycol 1500 (PEG))/(oleic acid (OA)) at the ratios of 1/39/0, 1/37/2 and 2/36/2 (w/w), named ...
Clickable nanogel solutions were synthesized by using the copper catalyzed azide/alkyne cycloaddition (CuAAC) to partially polymerize solutions of azide and alkyne functionalized poly(ethylene glycol) (PEG) monomers. Coatings were fabricated using a second click reaction: a UV thiol-yne attachment of the nanogel solutions to mercaptosilanated glass. Because the CuAAC reaction was effectively ha...
Investigation of mild steel (MS) submerged into 2 M HCl solution alongside sodium carboxymethyl cellulose (SCMC) and its mixtures with polyethylene glycol (PEG) potassium iodide (KI) respectively was investigated by weight loss measurements, potentiodynamic polarization measurements scanning electron microscopy (SEM). SCMC not-good-enough at low concentration 0.5 g/L 30 °C as inhibition efficie...
L-asparaginase obtained from E. coli strains is an important enzyme widely used in leukemia treatment. However, hypersensitivity reactions must be considered a relevant adverse effect of asparaginase therapy. One approach to reduce the hypersensitivity reactions caused by this enzyme is to change its physicochemical and biological properties by means of polyethylene glycol (PEG) conjugation, re...
Two phenylboronic acid based glucose-sensitive hydrogels, A.PBA-DMAPMA-EGDMA and A.PBA-PEG, were initially prepared by free-radical polymerization. Swelling properties of the gels were studied by determining the diameter changes in different buffer solutions, with or without glucose or fructose. The hydrogels were designed as "valves" to control the flow of glucose solutions. The results showed...
BACKGROUND The quality of colon cleansing and the tolerability of anterograde preparation are essential to the success of colorectal cancer screening. AIM To compare the tolerability and efficacy of low-volume preparations vs the standard regimen in individuals scheduled for an early morning colonoscopy. STUDY Participants in a population-based colorectal cancer screening program using the ...
The coverage density of poly(ethylene glycol) (PEG) is a key parameter in determining the efficiency of PEGylation, a process pivotal to in vivo delivery and targeting of nanomaterials. Here we report four complementary methods for quantifying the coverage density of PEG chains on various types of Au nanostructures by using a model system based on HS-PEG-NH(2) with different molecular weights. ...
Optimal bowel preparation is essential for the safety and outcome of colonoscopy. A solution containing polyethylene glycol (PEG) is often used as a bowel cleansing agent, but some patients are intolerant of PEG, and this may lead to discontinuation of colonoscopy. Sodium phosphates (NaP) tablets are designed to improve patient acceptance and compliance. The objective of this study was to compa...
Poor water solubility and low transfection efficiency of chitosan are major drawbacks for its use as a gene delivery carrier. PEGylation can increase its solubility, and folate conjugation may improve gene transfection efficiency due to promoted uptake of folate receptor-bearing tumor cells. The aim of this study was to synthesize and characterize folate-poly(ethylene glycol)-grafted chitosan (...
In order to increase the therapeutic effect of doxorubicin (DOX) on bone metastases, a multifunctional micelle was developed by combining pH-sensitive characteristics with bone active targeting capacity. The DOX loaded micelle was self-assembled by using doxorubicin-poly (ethylene glycol)-alendronate (DOX-hyd-PEG-ALN) as an amphiphilic material. The size and drug loading of DOX loaded DOX-hyd-P...
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