Strong antibacterial polydopamine (PDA) coatings prepared by a facile shaking-assisted method is reported for the first time. It was found that a minor modification made to the conventional synthesis procedure of PDA coatings, viz. replacing the static solution condition with a shaking solution condition by using a mechanical shaker, can produce the roughened polydopamine (rPDA) coatings at dif...

In this paper, Ni–TiO2 nanocomposite coatings with different sizes of TiO2 nanoparticles were successfully prepared by electrodeposition process from a nickel electrolyte in which the TiO2 nanoparticles were suspended. The influence of relevant deposition parameters on the nanocomposite coating characteristics was discussed. X-ray diffractometer has been applied in order to investigate the phas...

This case report is concerned with a 30 year old patient diagnosed with pigmented villonodular synovitis (PVNS) in the knee. The patient underwent an orthopedic surgical operation to remove the lesions. PVNS is a rare proliferative disorder, mostly benign and affecting the knee; its aetiology remains unclear. It represents a medical challenge because of non-specific symptoms that delay the diag...

Acrylic-based coatings are produced in formulations to suit all the major markets within the coatings industry. Industrial, decorative, printing inks, powder, and wall coverings are some of the market areas where acrylic-based coatings are widely used. Water emulsion and film-forming acrylic-based coatings are of particular importance due to their relative high performance and extremely low vol...

the photocatalytic coatings were prepared via incorporating the modified titania nanoparticles into epoxy-based inorganic-organic hybrid coatings. titania nanoparticles were first synthesized from tetra-n-butyl titanate using sol-gel methods by two different calcination treatments, i.e., in mild condition (80°c) and 500°c. the formed anatase nanoparticles were further modified as titania-silica...

Basal cell carcinoma (BCC) is the most frequent type of skin cancer in humans. Non-pigmented BCCs are much more prevalent than pigmented BCCs. Sometimes it could be difficult to distinguish a pigmented BCC from a melanoma [1]. Menzies et al. suggested a dermatoscopic method with a sensitivity of 93% and a specificity of 89% for diagnosing pigmented BCCs (See Table) [2,3]. The correct answer to ...

There is a paucity of information about the difference in the presentation of eczema in darkly pigmented skin compared to children with fair or white skin. This article describes the possible challenges of diagnosing eczema in children with darkly pigmented skin. The physiological difference in darkly pigmented skin compared with fair or white skin is explored, and how eczema may be manifested ...

in the present work the magnitudes of pigments in the synthetic leather, were measured by means of scanner. initially synthetic leather samples pigmented by three different pigments of yellow, blue and red colors were prepared. then the pigmented samples were scanned, and the values of rgb of images were calculated. the artificial neural network (ann) method used to make relation between rgb va...

The slurry erosion behaviour of laser clad Fe–Cr–B–Si alloy coatings was investigated at impact angles from 30u to 90u with an increment of 15u, and compared with the slurry erosion behaviour of two laser clad carbide coatings and a non-coated substrate made of AISI 4140 steel. The Fe–Cr–B–Si alloy coatings had slurry erosion resistance. Their overall slurry erosion resistance at impact angles ...