Abstract We uncover a novel mechanism of superscattering from subwavelength resonators linked to the physics bound states in continuum (BICs). Enhanced scattering occurs due constructive interference within Friedrich-Wintgen interfering resonances. Through this process, cross section single resonance can exceed currently established limit. develop general non-Hermitian model describe resonances...

Terahertz (THz) chirality pursues customizable manipulation from narrowband to broadband. While conventional THz is restricted by non-negligible linewidth and unable handle well. Recently, the concept “quasi bound states in continuum” (quasi-BIC) introduced optics resonance system whose quality factor can be extremely high with ultra-low radiative loss, thus providing a conceptual feasibility f...

PURPOSE The objective of this study was to evaluate the effect of microthreads on removal torque and bone-to-implant contact (BIC). METHODS Twelve miniature pigs for each experiment, a total of 24 animals, were used. In the removal torque analysis, each animal received 2 types of implants in each tibia, which were treated with sandblasting and acid etching but with or without microthreads at ...

BACKGROUND Resonance frequency analysis (RFA) is applied clinically for the assessment of implant stability, and the relevance of this application is widely accepted. However, the relationship between resonance frequency (RF) and other parameters of implant stability, such as the histomorphometrical bone-to-implant contact (BIC) parameter, has become controversial in the last decade. OBJECTIV...

A bound state in the continuum (BIC) is a wave that coexists with continuous but remains localized. In terahertz band, BIC can design devices an ultra-high mass factor (Q factor), which of great value for science and technology, so we designed metasurface structure composed metal split ring resonators (SRRs). According to symmetric protection principle superlattice mode, leakage process states ...

The anticonvulsant activity of topiramate combined with some convulsant agents (bicuculline--BIC, N-methyl-D-aspartate--NMDA, and kainic acid--KA), given at subconvulsive doses, was evaluated in the maximal electroshock (MES)-test in mice. BIC (1.5 mg/kg), KA (10 mg/kg) and NMDA (50 mg/kg) significantly decreased the anticonvulsant activity of topiramate raising its ED(50) from 76.2 mg/kg to 13...

PURPOSE To determine the effects of platelet-released growth factors (PRGF) on bone-to-implant contact (BIC) in minipig cortical bone. MATERIALS AND METHODS In each of 8 adult minipigs, 2 implants were placed in the facial wall of the mandible, one implant with and one without PRGF. PRGF was defined as the supernatant from washed, thrombin-activated, allogenic, platelet-rich plasma cells obta...

By means of plasma polymerization, positively charged, nanometre-thin coatings can be applied to implant surfaces. The aim of the present study was to quantify the adhesion of human bone cells in vitro and to evaluate the bone ongrowth in vivo, on titanium surfaces modified by plasma polymer coatings. Different implant surface configurations were examined: titanium alloy (Ti6Al4V) coated with p...

Background. The information available about osseointegration and the bone to implant interaction of zirconia implants with various surface modifications is still far from sufficient. Objective. The purpose of this systematic review and meta-analysis was to evaluate and compare zirconia dental implants with different surface topographies, with a focus on bone to implant contact and removal torqu...