نتایج جستجو برای: cross linking
تعداد نتایج: 536744 فیلتر نتایج به سال:
Introduction: One of the surgeries that needs to be considered after pain and discomfort is corneal cross-linking of the cornea. The aim of this study was to compare the effect of indomethacin and acetaminophen oral surgery before surgery on postoperative pain in the patients undergoing collagen cross-linking surgery. Methods: The present study was a double-blind clinical trial study that was ...
Background: Immobilization is an approach in industry to improve stability and reusability of urease. The efficiency of this technique depends on the type of membrane and the method of stabilization. Methods: The PEI-modified egg shell membrane was used to immobilize urease by absorption and glutaraldehyde cross-linking methods. The membranes were characterized by Fourier-transform infrared sp...
New biodegradable network polymers containing siloxane-linked polymeric prodrugs of 5-ammino-2-hydroxybenzoic acid (5-ASA) in the main chain were prepared by ter polymerization of methacrylic acid (MA), 2-hydroxyethylmethacrylate (HEMA), and bis (trimethylsilyloxy) methylsilane (VBM) in the presence of some new cross-linking agents.The monomers and polymers were characterized by FT-IR and 1H-NM...
Background and purpose: In the last step of preparation of nanoparticles, glutaraldehyde (GA) is added to stabilize the formed nanoparticles. There are several reports indicating the harmful effects of glutaraldehyde on different organ systems and tissues. The aim of this study was to evaluate the effects of different cross-linking methods like using ultraviolet (UV) irradiation, glucose and co...
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