The relationship between hole size and the voltage-driven formation of surface structures in an ITO/liquid crystal polymer/perforated metal electrode system
Publication date: Available online 17 February 2020Source: Journal of Physics and Chemistry of SolidsAuthor(s): Laurens T. de Haan, Eser M. Akinoglu, Guofu ZhouAbstractA device consisting of a multidomain liquid crystal polymer network sandwiched between a continuous electrode and a perforated silver electrode shows strong surface deformations upon application of an electric field between the electrodes. Here, a new method is presented for the preparation of such a device, in which a silver film with circular holes of a well-controlled diameter was made by evaporating silver onto a monolayer of polystyrene spheres. Due to multilayer defects of the polystyrene microparticle lithography template, larger combined holes were present, which provided interesting information about the effect of pore size on the deformation behavior. The results were compared to an electrostatic field distribution, from which the conclusion could be drawn that there is a minimum hole size that allows deformation. This knowledge is important for the development of applications for this kind of device, as the aspect ratio of the deformations is of crucial importance for effects such as switchable wetting and self-cleaning.
Publication date: Available online 6 April 2020Source: Colloids and Surfaces A: Physicochemical and Engineering AspectsAuthor(s): Yi Ding, Li Jia, Qi Peng, Jian Guo
ACS Applied Materials&InterfacesDOI: 10.1021/acsami.9b21438
Condition: Nocturia Due to Nocturnal Polyuria Intervention: Drug: Desmopressin Sponsor: Ferring Pharmaceuticals Not yet recruiting
Abstract Intrauterine infections with the pathogens, including toxoplasmosis, other (syphilis, varicella, mumps, parvovirus, and HIV), rubella, cytomegalovirus, and herpes simplex (TORCH) in susceptible individuals during pregnancy, result in microcephaly, white matter disease, cerebral atrophy, and calcifications in the fetus. Pseudo-TORCH syndrome is an umbrella term, consisting of several syndromes, resultant from different genetic alterations and pathogenetic mechanisms. Band-like calcification with simplified gyration and polymicrogyria (BLC-PMG) is one of these conditions, resultant from biallelic mutations ...
Duplex systems can be complicated by reflux, ureterocele, obstruction (most commonly PUJ in a lower moiety) and wetting secondary to an ectopic ureteric insertion in girls. The decision making algorithm for selection of surgical approach is complex and there is no consensus. The authors described the outcomes following an upper urinary tract approach in 2011(1) and now compare these results in a similar group of patients managed using a lower approach.
Publication date: Available online 27 March 2020Source: Materials LettersAuthor(s): Ivan Mazilkin, Kristina Tsoy, Alexander Straumal, Alexey Rodin, Brigitte Baretzky
Phys. Chem. Chem. Phys., 2020, Accepted Manuscript DOI: 10.1039/D0CP00906G, PaperMichael Zharnikov, Mustafa Sayin, Alexei Nefedov Biorepulsivity of oligo(ethylene glycol) (OEG) substituted self-assembled monolayers (SAMs), serving as model systems for analogous polymeric surfaces, is generally ascribed to the hydration effect. In this context, we applied temperature-programmed... The content of this RSS Feed (c) The Royal Society of Chemistry
Phys. Chem. Chem. Phys., 2020, Accepted Manuscript DOI: 10.1039/D0CP00143K, PaperSanchari Bhattacharjee, sandip khan Aqueous ionic liquids are of particular interest due to their tunability of physical and chemical properties and a deeper understanding of their structure-property relationship is desired. Molecular dynamics (MD) simulations... The content of this RSS Feed (c) The Royal Society of Chemistry
Environmental concerns have driven scientists to research new eco-friendly approaches for the preparation of nanosystems. For this purpose, novel bio-polymers have been selected. Among these, one of the most promising is lignin, which is biodegradable and biocompatible. Additionally, lignin is one of the main by-products of the paper industry and can be re-used in nanosystems building. Lignin-based nanosystems could be used in agriculture, to improve the uptake of bioactive compounds, thus avoiding soil pollution. However, the mechanism of penetration in the plant and the route of transportation within the internal plant t...