In recent years, luminescent materials doped with Ln(3+) ions have attracted much attention for their application as optical thermometers based on both downshifting and upconversion processes. This study presents research done the development of highly sensitive in physiological temperature range poly(methyl methacrylate) (PMMA) films two series visible complexes (Ln(3+)=Tb3+, Eu3+, Sm3+) SiO2 ...

Abstract The “stress-shielding” problem, common with metallic implants, may be solved by using biocompatible sandwiches a polymeric core between two skin sheets. To achieve such sandwiches, process route has been developed, beginning the grafting of poly-(methyl-methacrylate) (PMMA) on titanium (Ti) sheets via “grafting from” technique. Grafting resulted in variable thicknesses PMMA Ti Hot-pres...

Most current resistive memory has the problems of high and unstable threshold voltages device misread rates caused by low switching ratios. To address these problems, an Al/poly(methyl methacrylate) (PMMA)/silkworm hemolymph:gold nanoparticles/PMMA/indium tin oxide is fabricated adding PMMA layers above below active layer. The not only stable bipolar characteristics with a ON/OFF ratio but also...

Titanium (Ti) is the most commonly used material for cranial prostheses. However, this does not exhibit same mechanical properties as bone. Incorporating polymers onto Ti by combining both their a solution to overcome issue. Thus, sandwich materials made of two skin sheets and poly(methyl methacrylate) (PMMA) core are promising structures design biomedical The “grafting to” from” procedures fun...

A fast solid-phase microextraction method using core-shell ZnO-poly (methyl methacrylate) nanobeads (ZnO-PMMA) as adsorbent was established. This fast method with high enriching efficiency and salt tolerance capability depends on the structure of the core-shell nanobeads. First, the large surface area of the PMMA shell makes the dispersive nanobeads capture samples quickly, by virtue of multi-i...

Poly(methyl methacrylate) (PMMA) bone cement has been widely used in orthopedic surgeries including total hip/knee replacement, vertebral compression fracture treatment, and defect filling. However, aseptic loosening of the interface between PMMA often leads to failure. Hence, development modified that facilitates growth into is key reducing incidence loosening. In this study, MgAl-layered doub...

Acrylic resins are used as denture base materials since 1937 (Craig, 1993) and heat-cured Poly(methyl-methacrylate) (PMMA) (Lay et al., 2004) composed by methyl methacrylate monomers chains is the most popular of them. Virtually, dentures are constructed from conventional polymer/monomer (Lay et al., 2004) processed by heat water-bath system and compression molding technique (Ganzarolli et al.,...

The dispersion of magnetic nanoparticles (NPs) in homopolymer poly(methyl methacrylate) (PMMA) and block copolymer poly(styrene-b-methyl methacrylate) (PS-b-PMMA) films is investigated by TEM and AFM. The magnetite (Fe3O4) NPs are grafted with PMMA brushes with molecular weights from M = 2.7 to 35.7 kg/mol. Whereas a uniform dispersion of NPs with the longest brush is obtained in a PMMA matrix ...

Surface coverings using nanomaterials of silica nanoparticles and poly (methyl methacrylate) – abbreviated “PMMA-silica nanomaterials” are introduced to the Y 2 O S:Eu 3+ phosphor through four distinct approaches. The objective is enhance phosphorescence prolonged sustainability. Using immerse-daubing along with sol-gel approach (Stober way), it possible have phosphors covered relatively-monodi...

Elastic constants and cross-sectional dimensions of imprinted nanolines of poly(methyl methacrylate) (PMMA) on silicon substrates are determined nondestructively from finite-element inversion analysis of dispersion curves of hypersonic acoustic modes of these nanolines measured with Brillouin light scattering. The results for the cross-sectional dimensions, under the simplifying assumption of v...