نتایج جستجو برای: hydrogel bead

تعداد نتایج: 21036  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس 1388

طی ده سال گذشته، خون بندناف به عنوان یک منبع جایگزین برای بدست آوردن سلولهای خونساز، در پیوند آلوژنیک مورد توجه قرار گرفته است .از مزایای خون بند ناف سهل الوصول بودن آن بوده و همچنین کم بودن سلولهای t در این نمونه می باشد . از طرفی اکثر سلولهای t موجود نیز مبتدی می باشند. همین ویژگی باعث می شود تا در استفاده از این سلولها برای پیوند مغز استخوان کمتر شاهد بروز بیماری پیوند علیه میزبان در گیرندگا...

Journal: :Nanoscale 2012
Changyang Gong Cheng Wang Yujun Wang Qinjie Wu Doudou Zhang Feng Luo Zhiyong Qian

In this work, we aim to develop a dual drug delivery system (DDDS) of self-assembled micelles in thermosensitive hydrogel composite to deliver hydrophilic and hydrophobic drugs simultaneously for colorectal peritoneal carcinomatosis (CRPC) therapy. In our previous studies, we found that poly(ε-caprolactone)-poly(ethylene glycol)-poly(ε-caprolactone) (PCEC) copolymers with different molecular we...

Journal: :iranian journal of immunology 0
mete eyigor akdeniz university medical faculty, department of medical microbiology hulya eyigor department of ent head and neck surgery, antalya education and research hospital ustun osma department of ent head and neck surgery, antalya education and research hospital mustafadeniz yilmaz department of ent head and neck surgery, antalya education and research hospital nuray erin akdeniz university medical faculty, department of medical pharmacology omer tarik selcuk department of ent head and neck surgery, antalya education and research hospital cem sezer

background: although the imbalance of cytokines in head and neck squamous cell carcinoma (hnscc) is well known, there is scarce data regarding its occurrence during dysplasia, before the malignant transformation. objective: to determine whether laryngeal dysplasia patients show a different cytokine profile than patients with cancer and healthy controls. methods: seventeen newly diagnosed, untre...

Journal: :Future Pharmacology 2023

Curcumin is a biopharmaceutical classification system (BCS) class IV substance with many potential therapeutic effects. However, like other BCS active pharmaceutical ingredients, complex formulations are needed to guarantee sufficiently high bioavailability. A not-so-well-known delivery suspoemulsion (SE). SEs emulsions crystalline API in continuous or dispersed phases. This study aimed produce...

Journal: :Soft matter 2014
Shaoting Lin Changyong Cao Qiming Wang Mark Gonzalez John E Dolbow Xuanhe Zhao

Hydrogels' applications are usually limited by their weak mechanical properties. Despite recent great progress in developing tough hydrogels, it is still challenging to achieve high values of , toughness and modulus all together in synthetic hydrogels. In this paper, we designed highly stretchable, tough, yet stiff hydrogel composites via a combination of nanoscale hybrid crosslinking and macro...

2003
Kyle N. Plunkett Mary L. Kraft Qing Yu Jeffrey S. Moore

Hydrogels of 2-hydroxyethyl methacrylate (HEMA) cross-linked with N,N′-cystaminebis(acrylamide) (CBA) were prepared inside microchannels using an in situ photopolymerization for the study of chemical-responsive microgels. By chemically reducing disulfide bonds with dithiothreitol (DTT), the cross-link density of the hydrogel network decreased, leading to an observable swelling of the hydrogel. ...

Journal: :Investigative ophthalmology & visual science 1985
W H Beekhuis B E McCarey

A hydrogel intracorneal lens for refractive keratoplasty must have predictable and stable optics when implanted in the corneal stroma. A series of experiments was performed to evaluate the hydrogel hydration stability when in the corneal stromal environment. Hydrogel ICLs of 54%, 63%, 66% and 71% water content showed no loss of hydration (by weight) after one week in the rabbit corneal stroma. ...

2012
Yumin Ye Yu Mao Hengzhi Wang Zhifeng Ren

We report an all-dry fabrication method of the hybrid structure of pH-responsive hydrogel and carbon nanotube arrays using initiated chemical vapor deposition (iCVD). Vertically aligned carbon nanotube (VACNT) arrays with low site density were coated by a vapor-deposited poly(methacrylic acid-coethylene glycol diacrylate) hydrogel with complete retention of the aligned structure and precise con...

Journal: :Scientific reports 2016
Kwang-Hsiao Sun Zhao Liu Changjian Liu Tong Yu Tao Shang Chen Huang Min Zhou Cheng Liu Feng Ran Yun Li Yi Shi Lijia Pan

Recent advances in understanding the interaction between electricity and cells/biomolecules have generated great interest in developing biocompatible electrically conductive materials. In this study, we investigated the biocompatibility of a myo-inositol hexakisphosphate gelated polyaniline hydrogel using in vitro and in vivo experiments in a rat model. The polyaniline hydrogel was used to coat...

Journal: :Biological & pharmaceutical bulletin 2011
Kazuhiko Matsuo Yumiko Ishii Ying-Shu Quan Fumio Kamiyama Yohei Mukai Naoki Okada Shinsaku Nakagawa

The development of a simple, easy-to-use, and noninvasive vaccination system is in high demand. For transcutaneous immunization (TCI), we previously reported that a hydrogel patch was an effective TCI device that accelerates antigen penetration through the stratum corneum in mouse and rat models. The present study was performed to characterize the transcutaneous protein delivery induced by the ...

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