The surfaces of biodegradable peptide nanospheres with density-controllable poly(ethylene glycol) (PEG) brush layers were amenable to high levels of control, from hydrophilic 'stealth' properties to hydrophobic adsorptive properties depending on the PEG density in response to environmental conditions -'intelligent' properties that are expected to be useful for novel drug delivery systems.

Two novel thermo-responsive polymer brushes were prepared from L-alanine derivatives using the surface-initiated atom transfer radical polymerization (SI-ATRP) technique. The temperature-induced cell capture and release on both polymer brush modified substrates were further explored.

please cite this article as: fayaz a, shakerian m, ansari gh. comparing the efficiency of denture brush and ordinary brush in complete denture cleaning. novel biomed 2013;1(2):62-65. background & objective: denture cleansing is a key element in retaining mucosa free of any inflammation. however, many denture users usually ignore this important factor. this investigation was designed to compare ...

Responsive behavior of polymer brush to the external compression is one of the most important characters for its application. For the flexible polymer brush, in the case of low grafting density, which is widely studied by the Gaussian chain model based theory, the compression leads to a uniform deformation of the chain. However, in the case of high grafting density, the brush becomes anisotropi...

This work illustrates the use of polystyrene brushes for area selective deactivation against a hafnium atomic layer deposition process. The effect that thickness this brush has on its ability to block process is also shown.

Imaging of biliary strictures may suggest malignancy but cytology can provide a tissue diagnosis. The aim of this study is to compare the diagnostic value of brush cytology and bile cytology. Thirty two patients (20 males, 12 females, median age 66 years, range 31-84) with biliary strictures at endoscopic retrograde cholangio pancreatography (24) or percutaneous transhepatic cholangiography (8)...

PURPOSE To evaluate the efficacy of a novel multi-directional power toothbrush in reducing plaque and gingivitis relative to a standard manual toothbrush control. METHODS This 4-week, randomized and controlled, single-center, parallel group, examiner-blinded clinical study enrolled adults with mild-to-moderate gingivitis. At baseline, pre-treatment gingivitis and plaque levels were assessed v...

The brush-tailed rock-wallaby (Petrogale penicillata) is a nocturnal refuge dependent herbivore that can be found from south-east Queensland to East Gippsland in Victoria. Brush-tailed colonies are situated many different habitat types, and within this important for their survival. Dingoes coexist with P. penicillata perceived threat. This study aimed determine the link between behaviour intera...