نتایج جستجو برای: natural hydrogel

تعداد نتایج: 494046  

Journal: :Materials advances 2021

An injectable hydrogel inspired by platelet clotting mediators is developed based on natural components of the human body including serotonin and chondroitin sulfate, which exhibits improved hemostatic performance wound healing capability.

Journal: :Chemical communications 2012
Yeon Jeong Oh Il Hwan Cho Haeshin Lee Ki-Jung Park Hyukjin Lee Sung Young Park

A new way is demonstrated to develop a bio-inspired coacervate hydrogel by following catechol chemistry showing injectable and re-moldable physical properties. The formed coacervate shows potential long-term stability under water. Depending on pH, formation of the coacervate has been verified which is confirmed by XPS and zeta potential measurements.

Journal: :Acta biomaterialia 2011
E Rederstorff P Weiss S Sourice P Pilet F Xie C Sinquin S Colliec-Jouault J Guicheux S Laïb

Natural polysaccharides are attractive compounds with which to build scaffolds for bone and cartilage tissue engineering. Here we tested two non-standard ones, HE800 and GY785, for the two-dimensional (2-D) and three-dimensional (3-D) culture of osteoblasts (MC3T3-E1) and chondrocytes (C28/I2). These two glycosaminoglycan-like marine exopolysaccharides were incorporated into an injectable silyl...

Journal: :Biomedical materials 2012
Malgosia M Pakulska Brian G Ballios Molly S Shoichet

Diseases and injuries of the central nervous system (CNS) including those in the brain, spinal cord and retina are devastating because the CNS has limited intrinsic regenerative capacity and currently available therapies are unable to provide significant functional recovery. Several promising therapies have been identified with the goal of restoring at least some of this lost function and inclu...

Journal: :jundishapur journal of microbiology 0
hamid babavalian applied biotechnology research center, baqiyatallah university of medical sciences, tehran, ir iran ali mohammad latifi applied biotechnology research center, baqiyatallah university of medical sciences, tehran, ir iran; applied biotechnology research center, baqiyatallah university of medical sciences, tehran, ir iran. tel/fax: +98-2188617712, e-mail:; mohammad ali shokrgozar, national cell bank of iran, pasteur institute of iran, tehran, ir iran. tel: 98-2166492595 mohammad ali shokrgozar national cell bank of iran, pasteur institute of iran, tehran, ir iran; applied biotechnology research center, baqiyatallah university of medical sciences, tehran, ir iran. tel/fax: +98-2188617712, e-mail:; mohammad ali shokrgozar, national cell bank of iran, pasteur institute of iran, tehran, ir iran. tel: 98-2166492595 shahin bonakdar national cell bank of iran, pasteur institute of iran, tehran, ir iran sajjad mohammadi national cell bank of iran, pasteur institute of iran, tehran, ir iran mehrdad moosazadeh moghaddam applied biotechnology research center, baqiyatallah university of medical sciences, tehran, ir iran

conclusions this study showed that compared to standard drug treatment, treatment with hydrogel containing peptide had substantial antibacterial effects on s. aureus wound infections in mice. results the highest and lowest numbers of wounds were observed on day 2 in the negative and positive control groups, respectively. during the 8-day period, the positive control and hydrogel containing pept...

Journal: :environmental studies of persian gulf 2014
mohammad reza ramezani hossein naderi-manesh hossain ali rafiee pour

cell-based biosensors have become a research hotspot in biosensors and bioelectronics fields. the main feature of cell-based biosensors is the immobilization of living cell on the surface of transducers. different types of polymers which are used as scaffolds for cell growth should be biocompatible and have reactive functional groups for further attachment of biomolecules. in this work, the cel...

Journal: Journal of Nanoanalysis 2017
Mahnaz Qomi, Majid Karimi, Mansoureh Zarezadeh-Mehrizi, Zahra Kalantari khoramdareh

Polyacrylic acid/ octavinyl polyhedral oligomeric silsesquioxane, nanocomposite hydrogel with 3-D network was synthesized via radical polymerization. Octavinyl polyhedral oligomeric silsesquioxane was used as crosslinker and nanofiller simultaneously in the preparation of the hydrogel. Hydrogel adsorption performance was determined by adsorption of methylene blue. The adsorption capacity was ev...

2015
Enas M. Ahmed

Hydrogel products constitute a group of polymeric materials, the hydrophilic structure of which renders them capable of holding large amounts of water in their three-dimensional networks. Extensive employment of these products in a number of industrial and environmental areas of application is considered to be of prime importance. As expected, natural hydrogels were gradually replaced by synthe...

2012
Zishun Liu Somsak Swaddiwudhipong Wei Hong

In this paper, we demonstrate how deformation patterns of leaves and fruits in growing and drying processes can be described via the inhomogeneous field theory. The distorted deformation of ribbed leaves and the ridge formation on fruit surfaces can be understood as the energy-minimizing mechanical buckling patterns. The swelling and de-swelling induced instabilities of various membrane structu...

Wharton’s jelly mesenchymal stem cells (HWJMSCs) hold promise for myocardial regeneration, but optimal treatment regimen (preferably with a growth factor) is required to maximize functional benefits. The aim of this study was to explore the cardioprotective and angiogenesis effects of HWJMSCs combined with insulin-like growth factor-1 (IGF-1) in the treatment of acute myocardial infarction. Th...

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