Aim: To evaluate the surface alterations of soft liners with or without sealer coating after mechanical brushing abrasion. Methods: Thirty specimens were made of a methacrylate(Coe-Soft) and a siloxane-based material (Ufi-Gel SC), and 15 received two coatings of surface sealer. The specimens were submitted to a mechanical brushing-dentifrice assay under 200 g of force at 250 cycles/min. Mechani...

-Adsorptive-type organoclays, where hydrocarbons adsorb directly to the siloxane surfaces, were studied to find new organic cations and to determine the parameters that produce effective sorbents. Organoclays were prepared from hectorite by cation exchange with small, aromatic organic cation salt solutions. Trimethylphenylammonium (TMPA) chloride was obtained and iodide salts of commerciallyuna...

We have determined the diffusion, thermal diffusion, and Soret coefficients of a poly(dimethyl siloxane)/poly(ethyl-methyl siloxane) (PDMS/PEMS) polymer blend as a function of composition and temperature within the homogeneous phase. The critical slowing down of the diffusion and the corresponding critical divergence of the Soret coefficient are described within the pseudospinodal concept both ...

Although siloxanes are contaminants of emerging concerns, limited studies have been conducted on contamination and time trends in from aquatic environments worldwide. To date, most previous focused the environmental relevance cyclic coastal environments. In present study, linear were measured sediment collected semi-enclosed bays Korea 2013 2021 to assess occurrence, spatial distribution, tempo...

Introduction of a naphthalocyanine moiety to phthalocyanine allows for a gradual red shift of the absorption spectrum in the resulting chromophore. Using silicon as a core atom allows for the introduction of additional siloxane side chains which mitigate dye aggregation. A dye-sensitized solar cell with this hybrid sensitizer exhibits a broad and flat IPCE of 80% between 600 and 750 nm and high...

The resolution of optical coherence tomography (OCT) often suffers from blurring caused by material dispersion. We present a numerical algorithm for computationally correcting the effect of material dispersion on OCT reflectance data for homogeneous and stratified media. This is experimentally demonstrated by correcting the image of a polydimethyl siloxane microfludic structure and of glass sli...

We have demonstrated a novel micro/nano transportation system using the adenosine triphosphate (ATP)-driven biomolecular motors. Two kinds of linear biomolecular motor systems, microtubulekinesin [1] and actinmyosin [2], are investigated as driving mechanisms in the system. The rail molecules, microtubules, and actin are patterned on a glass substrate using a regular soft lithography technique ...