background and aims. the aim of this study was to compare clinical effects of two different membranes (palatal connective tissue and collagen) in combination with bio-oss in the treatment of intrabony defects. materials and methods. fifteen patients who had at least a pair of intrabony defects with an attachment loss of ≥5 mm and an initial osseous defect depth of ≥3 mm participated in this stu...

Abstract While active systems possess notable potential to form the foundation of new classes autonomous materials (Zhang et al 2021 Nat. Rev. Mater. 6 437), designing that can extract functional work from surroundings has proven challenging. In this work, we extend these efforts realm designed liquid crystal/colloidal composites. We propose suspending colloidal particles with Janus anchoring c...

Three equal-depth traps reported in NaCl have been attributed to different defect configurations. In this trio system, the basic trap configuration proposed is bi-vacancy, analogy being drawn through observations KCl crystal. Two other configurations that emerged are derivatives of bi-vacancy with next nearest neighbor I-V pair and VF center which represents a hole linked cation vacancy.

On the surface and grain boundary of perovskite films there are large quantities defects, which leads to photogenerated carrier nonradiative recombination degrades performance solar cells (PSCs). Surface passivation can suppress detrimental effects defect improve PSCs. Here, an organic molecule, 4-chloro-1,8-naphthalic anhydride (ALS), is adopted passivate defects on (FAPbI3)0.95(MAPbBr3)0.05 f...

We demonstrate a novel method of introducing point defects (mono- and divacancies) in a confined monolayer colloidal crystal by manipulating individual particles with optical tweezers. Digital video microscopy is used to study defect dynamics in real space and time. We verify the numerical predictions that the stable configurations of the defects have reduced symmetry compared to the triangular...

A system of rules was developed to join disconnected clusters based on the location of the defects for semiconductor defect inspection. The clusters are evaluated on a pair-wise basis using the rules and are joined or not joined based on a threshold. The system continuously re-evaluates the clusters under consideration as the rules change with each joining action. The technique to measure the f...

Electron paramagnetic resonance (EPR) was used to study high-purity semi-insulating 4H-SiC irradiated with 2 MeV electrons at room temperature. The EPR signal of the EI4 defect was found to be dominating in samples irradiated and annealed at ~750°C. Additional large-splitting Si hyperfine (hf) lines and also other C and Si hf structures were observed. Based on the observed hf structures and ann...

Metallic single wall carbon nanotube devices were characterized using low temperature transport measurements to study how the growth conditions affect defect formation in carbon nanotubes. Suspended carbon nanotube devices were grown in situ by a molecular beam growth method on a pair of catalyst islands located on opposing Au electrodes fabricated by electron beam lithography. The authors pres...