Advancing the construction of circularly polarized luminescence (CPL) materials by molecular design has become an important target in this research area. In their Research Article (e202204358), Yoshio Hisaeda, Toshikazu Ono, and co-workers demonstrate a new bipyrrole-based boron difluoride family exhibiting intense multicolor with easy synthetic access. Tuning rotational barrier around 2,2′-bip...

An ab initio study of the mono-and difluorides of krypton. Results from ab initio calculations at the CCSD͑T͒ level of theory are presented for krypton monofluoride ͑KrF͒, krypton monofluoride cation (KrF ϩ), linear, ground-state krypton difluoride (KrF 2), the triplet state of krypton difluoride, and the krypton–fluorine van der Waals complex (Kr–F 2). These are the first calculations demonstratin...

In order to determine possible risk factors and to assess the value of platinum microcoils added to polyvinyl alcohol particles in preoperative embolization of cerebral arteriovenous malformations in adults, we reviewed our experience with this procedure. Between September 1985 and June 1989, we performed embolizations in 54 patients with cerebral arteriovenous malformations. Of these, procedur...

Hueper has contributed extensively to knowledge of the effects of the injection into animals of non-metabolizable colloidal substances. In 1939 he reported storage of subcutaneously or intravenously injected polyvinyl alcohol in the reticulo-endothelium of liver, spleen, and lymph nodes, in the endothelium of cerebral, pulmonary, and renal vessels, in the histiocytes of various organs, and in t...

A survey is given of the recent advances in the study of and the present knowledge of the thermal degradation of polyvinyl chloride. The sites for initiation of the thermal degradation, the mechanism of the dehydrochiorination, the discolouration of PVC by heat and the influence of plasticizers on the rate of degradation are discussed.

Purpose: To prepare and evaluate bioadhesive buccal films of diltiazem hydrochloride (a L-type calcium channel blocker) for overcoming the limitations of frequent dosing, low bioavailability and gastrointestinal discomfort of oral delivery. Methods: Buccal films were prepared by solvent casting technique using sodium carboxymethylcellulose, polyvinyl pyrrolidone K-30 and polyvinyl alcohol. The ...

The current study emphasizes the synthesis of iron oxide nanoparticles (IONPs) and impact of hydrophilic polymer polyvinyl alcohol (PVA) coating concentration as well as anticancer drug doxorubicin (DOX) loading on saturation magnetization for target drug delivery applications. Iron oxide nanoparticles particles were synthesized by a reformed version of the co-precipitation method. The coating ...

A key requirement for three-dimensional printing (3-DP) at room temperature of medical implants depends on the availability of printable and biocompatible binder-powder systems. Different concentration polyvinyl alcohol (PVA) and phosphoric acid solutions were chosen as the binders to make the artificial stent biocompatible with sufficient compressive strength. In order to achieve an optimum ba...

PURPOSE To evaluate the dimensional accuracy of the resultant (duplicative) casts made from two different impression materials (polyvinyl siloxane and polyether) in parallel and angulated implants. MATERIALS AND METHODS Three definitive master casts (control groups) were fabricated in dental stone with three implants, placed at equi-distance. In first group (control), all three implants were ...

BACKGROUND The intraocular pressures and biomechanical parameters measured by the ocular response analyzer make the analyzer a useful tool for the diagnosis and management of anterior segment disease. This observational study was designed to investigate the effect of topical anesthesia on the parameters measured by the ocular response analyzer: corneal hysteresis, corneal resistance factor, Gol...