Surface modification of biomaterials with polymer chains has attracted great attention because of their ability to control biointerfacial interactions such as protein adsorption, cell attachment and bacterial biofilm formation. The aim of this study was to control the immobilisation of biomolecules on silicon wafers using poly(ethylene glycol)(PEG) chains by a “grafting to” technique. In partic...

Penyambungan (grafting) merupakan salah satu upaya untuk memperbaiki sifat tanaman menggunakan bahan klonal baik pada fase pembibitan, pemeliharaan maupun rehabilitasi. Keragaan kopi Robusta dapat diperbaiki melalui penyambungan intraspesifik (Robusta/Robusta) menghasilkan produktivitas yang lebih tinggi atau interspesifik (Arabika/Robusta) Arabika. Tujuan penelitian ini adalah (1) mengetahui p...

Gamma radiation-induced graft copolymerization of styrene onto poly(ethylene terephthalate) (PET) films was studied using simultaneous irradiation technique. The effects of grafting conditions on the degree of grafting were investigated. The grafting conditions include monomer concentration, irradiation dose, dose rate, and the type of solvent. Moreover, the effect of the addition of crosslinki...

background: dialysis patients frequently have coronary artery disease but are regarded as high risk patients for coronary artery bypass grafting (cabg). methods: between february 2002 and september 2006, seventeen dialysis-dependent patients underwent isolated cabg at our center. cabg was performed under cardiopulmonary bypass (cpb) for all the patients. all cases had been maintained on hemodia...

In a series of grafting operations on cockroach legs, epidermal cells from different positions or from the same position on the circumference of the femur were placed together. Where cells from different positions were confronted, new cuticular structures corresponding to the positions which would normally have lain between them were formed during the following moults. At the control junctions,...

Radiation induced skin fibrosis (RIF) is a debilitating sequela of radiation therapy, however the basic cellular pathophysiology driving this fibrotic development remains poorly defined. Clinically, fat grafting has been shown to improve fibrosis, but its mechanism unknown. We aimed delineate dynamics and associated pathways in RIF evaluate how these change with grafting-associated recovery irr...

We show that an instanton with high charge can provoke the creation of extra curvature on space holds it. Geometrically, this corresponds to a new surgery operation, which we name grafting. Curvature around sphere increases by grafting when decays.

This study investigated the chemical grafting of a single-layer poly(vinyl alcohol) (PVOH) film. The effect of the grafting parameters (grafting time, grafting temperature, and concentration of fatty acid chloride) on the hydrophobicity of the film surface and the film solubility were evaluated. The PVOH substrate film (cold-water soluble at 20°C) was manufactured by flat extrusion and had a th...

: a new fibrous adsorbent was prepared by grafting acrylic acid /acryl amide (aa/aam) co-monomers onto poly(ethylene terephtalat) (pet) fibers. the resulting sorbent has been characterized by fourier transform infrared spectroscopy (ft-ir), thermo gravimetric analysis (tga), scanning electron microscopy (sem) and elemental analysis and studied for the preconcentration and determination of trace...

In a series of Polynesian pearls collected after short cultivation periods, early post-grafting mineral deposits were characterized by high resolution synchrotron-based X-ray fluorescence with unprecedented accuracy. Morphological patterns and elemental composition are correlated through simultaneous imaging processes. Evidence that aragonite calcite occur in neighboring units during the earlie...