Results 231 to 240 of about 34,849 (295)

COLLAGEN BIOSTIMULATOR WITH POLYMETHYLMETHACRYLATE

INDIAN JOURNAL OF APPLIED RESEARCH, 2021
Introduction: Polymethylmethacrylate (PMMA) is a potent agent that induces neocolagenesis and neoangiogenesis when used in dermal and subcutaneous tissue implantation techniques. In this study, the collagen biostimulation technique with PMMA is presented, with adequate and safe concentrations for facial lifting in different laxity degrees.
Fernanda Bortolozo, Honorio Sampaio Menezes, Danuza Dias Alves, Rodrigo Cadore Mafaldo, Roberto Chacur, Nívea Maria Bordin da Silva Chacur, Leando Dias Gomes, Raissa Nardi, Gabriella Andressa Marchesin de Castro   +8 more
openaire   +1 more source

Evolution of shock compression pulses in polymethylmethacrylate and aluminum

Journal of Applied Physics, 2018
The numerical study of the dynamics of shock compression pulses in polymethylmethacrylate (PMMA) and aluminum is performed in both viscoelastic and hydrodynamic approximations. The Maxwell relaxation model with two parameters, the relaxation time and the
T. V. Popova, A. Mayer, K. Khishchenko
semanticscholar   +1 more source

Methods of Immobilization of Proteins to Polymethylmethacrylate

Preparative Biochemistry, 1985
An extracorporeal hemoperfusion chamber for insertion into the peripheral circulatory system has previously been described. In 4 to 6 hours perfusion its aim is to exert a subtractive, selective effect on the blood and to stimulate immunocompetent cells. The chamber is made from polymethylmethacrylate (PMMA).
K, Holmberg, H, Hydén
openaire   +2 more sources

Irradiation of Polymethylmethacrylate

The Journal of Bone & Joint Surgery, 1974
Data resulting from gamma radiation of polymethylmethacrylate indicate that the clinical use of Co60 irradiation of neoplastic disease in bone is not affected by the presence of polymethylmethacrylate, nor is the polymethylmethacrylate affected at the level of gamma radiation in clinical use today.
J A, Murray, M C, Bruels, R D, Lindberg
openaire   +2 more sources

Growth Hormone in Polymethylmethacrylate Cement

Clinical Orthopaedics and Related Research, 1990
The in vitro release of human growth hormone (hGH) from polymethylmethacrylate bone cement was measured for up to 40 days using a specific enzyme-linked immunosorbent assay. In rabbits, hGH-loaded bone cement was inserted into one distal femur and plain cement was inserted into the contralateral distal femur as a control.
S, Downes, D J, Wood, A J, Malcolm, S Y, Ali   +3 more
openaire   +2 more sources

Toxicity of polymethylmethacrylate thermodegradation products

Archives of Toxicology, 1984
Polymethylmethacrylate was thermally degraded in air at 300 degrees C and the volatile decomposition products studied with gas chromatography-mass spectrometry. The main product was monomeric methacrylate, although many other compounds existed among the products. Electron spin resonance spectroscopy revealed the presence of free radicals.
S, Vainiotalo, A, Zitting, S, Jacobsson, J, Nickels, H, Koskinen, H, Savolainen   +5 more
openaire   +2 more sources

Percutaneous vertebroplasty with polymethylmethacrylate. Technique, indications, and results.

Radiologic Clinics of North America, 1998
H. Deramond, C. Depriester, P. Galibert, D. Le Gars   +3 more
semanticscholar   +2 more sources

Luminescent solar concentrators based on thin films of polymethylmethacrylate on a polymethylmethacrylate support

Solar Energy Materials, 1988
Abstract Optical efficiencies for luminescence solar concentrators based on thin films of polymethylmethacrylate doped with luminescent dye BASF-241 deposited on PMMA transparent plates are measured and calculated. The influence of the refractive index of optical matching material on LSC performance is analyzed.
Renata Reisfeld, Marek Eyal, Valeri Chernyak, Rivka Zusman   +3 more
openaire   +1 more source

Polymethylmethacrylate

1998
This book surveys experiences made with Polymethylmethacrylate (PMMA) dialysis membranes, ranging from a summary of the most recent experimental and clinical results to an overview of future potentials and new trends in research. Several articles treat the biophysical properties of the membrane, its chemical structure and manufacturing procedures aimed
openaire   +1 more source

Environmental Crazing of Polymethylmethacrylate and Polycarbonate

1980
Polymethylmethacrylate and polycarbonate are finding many uses as industrial materials, such as in automobiles and other consumer goods. Of particular interest to the manufacturer and consumer alike, is their resistance to mechanical degradation under stress in certain unfavorable environments, such as organic solvents.
Di Benedetto A T, Bellusci P, Iannone M, Nicolais L   +3 more
openaire   +2 more sources