A rapid and cost-effective lithographic method, polymer blend lithography (PBL), is reported to produce patterned self-assembled monolayers (SAM) on solid substrates featuring two or three different chemical functionalities. For the pattern generation we use the phase separation of two immiscible polymers in a blend solution during a spin-coating process. By controlling the spin-coating paramet...

Tongue diagnosis is an important procedure in traditional Korean medicine (TKM). In particular, tongue coating thickness (TCT) is deemed to show the progression of the disease. However, conventional tongue diagnosis has limitations because of various external factors. Therefore, it is necessary to investigate the availability of tongue diagnosis system (TDS) in the assessment of TCT. This study...

Sol-gel thin films of hydroxyapatite (HA) and titania (TiO(2)) have received a great deal of attention in the area of bioactive surface modification of titanium (Ti) implants. Sol-gel coatings were developed on Ti substrates of pure HA and TiO(2) and two composite forms, HA+10% TiO(2) and HA+20% TiO(2), and the biological properties of the coatings were evaluated. All the coating layers exhibit...

Saliva is complex and important body fluid, is very essential for oral health. Saliva is the exposed to numerous toxic components in tobacco products, is responsible for structural and functional changes in oral tissues. Aim & objectives: A single blind randomized cross-sectional study was undertaken to assess the effect of chewing and smoking tobacco on pH of saliva and tongue coating and role...

starch is found in abundance in nature and it is one of the raw materials used for food packaging because of the low price, biodegradability, good mechanical and barrier properties. the recycling ability of coating materials was significantly increased by using edible films and coating in comparison to traditional packaging and it could be an alternative for synthetic films. in this research, t...

objective: a clinical challenge of using zirconia frameworks is to achieve adequate bond with different substrates. this study aimed to evaluate the effect of bioglass and silica coating of zirconia substrates on microshear bond strength of resin cement to tetragonal zirconia. methods: this laboratory experimental study was conducted on zirconia discs. a total of 120 ytzp zirconia (zirkonzahn) ...

Nanochitosan is a nanoparticle of chitosan with size between 100-400 nm. has higher antibacterial ability than ordinary chitosan. The manufacture into nanochitosan can be done by ionic gelation method, namely the complexation polyelectrolyte positively charged and negatively sodium tripolyphosphate. morphology in form whole sphere typical functional groups such as amine, hydroxyl carboxyl group...

The article provides information on the creation of modified friction surfaces. results analysis applied antifriction film coatings are presented. One main problems in application thin is lack technological modes recommended by manufacturer. composition anti-friction coating described. experimental studies deposition Selected pneumatic spray gun for depositing coating. A series experiments were...

Functional coatings provide durability to the bulk material and add other value-added properties which enhance surface's mechanical, electrical, optical, many properties. The functional response of these stems from ambiance, can be made sense in a sharp change temperature, pH, moisture, active ions, or mechanical stresses. Recently, efforts have been impart multi-functionality within single coa...

Abstract Photochromic wood was fabricated by coating microencapsulated photochromic material (MP)/polydimethylsiloxane composites onto using a simple drop-coating method. Urea-melamine–formaldehyde resin used to microencapsulate the (PM) via in situ polymerization. The concentration of MP affected property surface. total color change (? E *) reached 82.2 when composite is 8%. Adhesion tests con...