نتایج جستجو برای: interpenetrating polymer network

تعداد نتایج: 761898  

Journal: :Indian Journal of Pharmaceutical Sciences 2021

In the present work, a grafted polymer of polyacrylamide with gum arabica was synthesized as Gum acacia-g-polyacrylamide using microwave-assisted synthesis ceric ammonium nitrate reaction initiator. The utilized in combination sodium alginate to prepare interpenetrating network hydrogel beads effectively deliver gabapentin gastrointestinal tract. formulated microbeads showed pH-responsive relea...

Journal: :Polymer 2021

By introducing hydrophilic polymers into silicone medical devices, highly beneficial biomedical properties can be realized. An established solution to introduce is form an interpenetrating polymer network (IPN) by performing the hydrogel synthesis in presence of swollen supercritical carbon dioxide. The precise distribution two not known, and determining this goal study. Neutron scattering micr...

Journal: :Dalton transactions 2007
Cao-Yuan Niu Ben-Lai Wu Xian-Fu Zheng Hong-Yun Zhang Zhong-Jun Li Hong-Wei Hou

Reaction of AgPF(6) with the asymmetric ligand 1,6-dihydro-2-methyl-6-oxo-(3,4'-bipyridine)-5-carbonitrile (1), afforded a significant silver coordination polymer {[Ag(2)(1)(3)](2).(CH(3)OH)(3).(PF(6))(4)}(n) (2) with unique 1D twofold interpenetrating metal-organic frameworks constructed by 1D triple helical chains with nanosized cages hosting counterions as guests. This compound exhibits high...

Journal: :Journal of materials chemistry. B 2016
Seshasailam Venkateswaran Orlando David Henrique Dos Santos Emma Scholefield Annamaria Lilienkampf Peter J Gwynne David G Swann Kevin Dhaliwal Maurice P Gallagher Mark Bradley

Infections arising from contaminated medical devices are a serious global issue, contributing to antibiotic resistance and imposing significant strain on healthcare systems. Since the majority of medical device-associated infections are biofilm related, efforts are being made to generate either bacteria-repellent or antibacterial coatings aimed at preventing bacterial colonisation. Here, we uti...

Journal: :Tissue engineering. Part A 2010
James Su Samuel T Wall Kevin E Healy Christine F Wildsoet

Enzymatically degradable semi-interpenetrating polymer networks (edsIPNs) were explored for their biocompatibility and ability to promote new scleral tissue growth, as a means of reinforcing the posterior wall of the eye. The edsIPNs comprised thermoresponsive poly(N-isopropylacrylamide-co-acrylic acid), customizable peptide crosslinkers cleavable by matrix metalloproteinases, and interpenetrat...

Journal: :Biomaterials 2003
Mohammad Changez Krishna Burugapalli Veena Koul Veena Choudhary

Hydrogels based on poly(acrylic acid) and gelatin crosslinked with N,N'-methylene bisacrylamide (0.5mol%) and glutaraldehyde (4%), respectively, forming an interpenetrating network were employed as matrices, for studying the loading and release of gentamicin sulphate. The release kinetics of gentamicin sulphate was evaluated in water (pH approximately 5.8), phosphate buffer (pH 7.4) and citrate...

2011
Yuanyuan Li Hongqi Dai Li Wan Zhengjun Zhu

Reducing basis weight could lead to huge savings of forest resources as well as energy consumption and waste treatment in the papermaking process. However, low basis weight paper generally lacks normal strength and stiffness. The lower the basis weight of the paper, the more important is surface sizing. Highly cross-linked cured epoxy resin, due to its epoxy group and phenyl group, has gained s...

Journal: :Bio-medical materials and engineering 2014
Ching-Hsien Chang Hsia-Wei Liu Ching-Cheng Huang

A series of designed drug-release systems were prepared and established for clear moisture healing. These systems were designed to have an interpenetrating polymer network (IPN) structure, which contained a breathable polyurethane film, hydrocolloidlayer, and polyacrylate adhesive layer. Breathable polyurethane film (2000 g/m(2)/24 hr) with high moisture permeability was employed as a base for ...

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