First-principles energetics analyses were performed to investigate the nucleation of (Y–Si–O) nano-clusters (NCs) in nano-structured ferritic alloys (NFAs). It was predicted that (Y-Si–O) NCs follows same general pathway as previously found for (Y–Ti/Al/Zr–O) NFAs: they all tend begin with (O–O) pairs and grow (O–Y)-cores further larger by attracting Y other solute elements nearby. Nucleation a...

Time-effective, unsupervised clustering techniques are exploited to discriminate nanometric metal disks patterned on a dielectric substrate. The discrimination relies cluster analysis applied time-resolved optical traces obtained from thermo-acoustic microscopy based asynchronous sampling. aims recognize similarities among nanopatterned and them accordingly. Each is characterized by fingerprint...

Aims: This study aimed to evaluate the effect of contact lens materials on structural properties and examine ultraviolet (UVA part) visible (Vis) transmittance with without UV filters commercially available silicone hydrogel (SiHy) bio-hydrogel (bio-Hy) soft lenses (CLs) in vitro.
 Place Duration Study: Hacettepe University, Department Physics, Ankara, Turkey, between May 2018 2021.
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Introduction and Background: Ceramics are inorganic, nonmetallic materials, such as alumina, beryllia, or glassceramic, whose final characteristics are produced by subjection to high temperatures. Nanomaterials is a rapidly growing area of ceramics [1-3] and can be classified into the following categories: Nano-particles submicron or ultra micron size particles; Nano-fibers – nanometer (nm) siz...

the level of dental and oral hygiene on elementary school age children is very low, so it can be increasing the incidence of dental and oral diseases which caused by various microorganisms. moutwash can keep dental and oral hygiene, but many commercial mouthwash is still used alcohol as their ingredients, which can be giving side effects, therefore, we still needed used alternative mouthwash, w...

objective: curcumin is extracted from curcuma longa and regulates the intracellular signal pathways which control the growth of cancerous cell, inflammation, invasion and apoptosis. curcumin molecules have special intrinsic features that can target the intracellular enzymes, genome (dna) and messengers (rna). a wide range of studies have been conducted on the physicochemical traits and pharmaco...

Bionanotechnology is a combination of three terms: “bios” meaning “life,” “nano” (origin in Greek) meaning “dwarf,” and “technologia” (origin in Greek—comprised of “techne” meaning “craft,” and “logia” meaning “saying”), which is a broad term dealing with the use and knowledge of humanity’s tools and crafts. Biomolecular Nanotechnology—or Bionanotechnology—is a term coined for the area of study...

Bulk quantities of polypyrrole nanofibers and nanospheres can be synthesized with a facile, one-step "green-nano" chemical oxidative polymerization approach, by simply using different reaction media.