نتایج جستجو برای: modified chitosan resin

تعداد نتایج: 296222  

The antifungal properties of ZnO were implemented in the real handicraft and showed promising results for the value addition of local products by sun-screen and fungi protections. The inhibition of Aspergillus sp. growth on tube sedge basketry by zinc oxide (ZnO) was demonstrated. ZnO nanoparticles synthesized with chitosan capping agents were analyzed by X-ray diffractometry (XRD), Fourier tra...

Journal: :Asian Pacific Journal of Tropical Biomedicine 2012

2017
Emmanuel I. Unuabonah Adewale Adewuyi Matthew O. Kolawole Martins O. Omorogie Olalekan C. Olatunde Scott O. Fayemi Christina Günter Chukwunonso P. Okoli Foluso O. Agunbiade Andreas Taubert

Hybrid clay composites were prepared from Kaolinite clay and Carica papaya seeds via modification with chitosan, Alum, NaOH, and ZnCl2 in different ratios, using solvothermal and surface modification techniques. Several composite adsorbents were prepared, and the most efficient of them for the removal of gram negative enteric bacteria was the hybrid clay composite that was surface-modified with...

2010

1 1 GENERAL INTRODUCTION 3 1.1 Endothelial related diseases 3 1.2 siRNA and the principle of RNA interference 8 1.3 RNA interference in research and therapy 13 1.4 Viral and non-viral gene delivery 14 1.5 Nanoparticles: definitions, history and current state of knowledge 16 1.6 Gelatin based nanoparticles as colloidal drug delivery vectors 18 1.7 Body distribution of nanoparticles 19 1.8 Nanopa...

2015
Pei-Ru Wei Yaswanth Kuthati Ranjith Kumar Kankala Chia-Hung Lee Hitoshi Sashiwa Shinsuke Ifuku

We designed a study for photodynamic therapy (PDT) using chitosan coated Mg-Al layered double hydroxide (LDH) nanoparticles as the delivery system. A Food and Drug Administration (FDA) approved near-infrared (NIR) fluorescent dye, indocyanine green (ICG) with photoactive properties was intercalated into amine modified LDH interlayers by ion-exchange. The efficient positively charged polymer (ch...

2010
Sean X. Liu

Surface modification of polyethersulfone (PES) membrane surfaces using UV lozone pretreatment with sub­ sequent grafting and interfacial polymerization on membrane surface was investigated in order to improve the resistance of membrane surface to protein adsorption. The surface modifications were evaluated in terms of hydrophilicity, chemical composition of the surface and static protein adsorp...

Background and Objectives: Cucumber includes a short postharvest life and loses its quality fast. Novel technologies such as coating and modified atmosphere packaging are promising methods in preserving fresh products. Therefore, the aim of this study was to use a combination of chitosan coating and modified atmosphere packaging to preserve quality attributes of the cucumber Royal var. and to e...

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2011
Yongxin Li Yuan Zhou Hongying Xian Lun Wang Jianqiang Huo

A promising electrochemical sensor was fabricated by the self-assembling of Pt nanoparticles (nano-Pts) on a chitosan (CS) modified glassy carbon electrode (GCE). A field-emission scanning electron microscope (FE-SEM), transmission electron microscopy (TEM) and electrochemical techniques were used for characterization of these composites. It has been found that nano-Pts are inserted into the CS...

Journal: :Dental materials : official publication of the Academy of Dental Materials 2004
Martin Rosentritt Michael Behr Reinhold Lang Gerhard Handel

OBJECTIVE The aim of this study was to investigate the in-vitro marginal adaptation of all-ceramic class II inlays which were luted with conventional multi-stage pre-treatment cements and one new type of cement, which requires no conditioning. METHODS The marginal adaptation of 56 all-ceramic inlays was determined with scanning electron microscopy and microleakage tests. The marginal integrit...

2012
Wenjuan Gao James C. K. Lai Solomon W. Leung

As a biomaterial, chitosan has been widely used in tissue engineering, wound healing, drug delivery, and other biomedical applications. It can be formulated in a variety of forms, such as powder, film, sphere, gel, and fiber. These features make chitosan an almost ideal biomaterial in cell culture applications, and cell cultures arguably constitute the most practical way to evaluate biocompatib...

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