Alpha and recoil track detection in poly(methyl methacrylate) (PMMA)—Towards a method for in vitro assessment of radiopharmaceuticals internalized in cancer cells

2014 ◽  
Vol 85 (3) ◽  
pp. 034302
Author(s):  
S. Myhra ◽  
N. Falzone ◽  
R. Chakalova
Keyword(s):  
Methyl Methacrylate ◽  
Cancer Cells ◽  
Poly Methyl Methacrylate ◽  
In Vitro Assessment

scholarly journals Graphene-Doped Poly (Methyl-Methacrylate) (Pmma) Implants: A Micro-CT and Histomorphometrical Study in Rabbits

2021 ◽  
Vol 22 (3) ◽  
pp. 1441
Author(s):  
Antonio Scarano ◽  
Tiziana Orsini ◽  
Fabio Di Carlo ◽  
Luca Valbonetti ◽  
Felice Lorusso
Keyword(s):  
Methyl Methacrylate ◽  
Dental Implant ◽  
Animal Studies ◽  
White Male ◽  
Biological Response ◽  
Medullary Canal ◽  
Poly Methyl Methacrylate ◽  
Titanium Surfaces ◽  
Dental Applications

Background—the graphene-doping procedure represents a useful procedure to improve the mechanical, physical and biological response of several Polymethyl methacrylate (PMMA)-derived polymers and biomaterials for dental applications. The aim of this study was to evaluate osseointegration of Graphene doped Poly(methyl methacrylate) (GD-PMMA) compared with PMMA as potential materials for dental implant devices. Methods—eighteen adult New Zealand white male rabbits with a mean weight of approx. 3000 g were used in this research. A total of eighteen implants of 3.5 mm diameter and 11 mm length in GD-PMMA and eighteen implants in PMMA were used. The implants were placed into the articular femoral knee joint. The animals were sacrificed after 15, 30 and 60 days and the specimens were evaluated by µCT and histomorphometry. Results—microscopically, all 36 implants, 18 in PMMA and 18 in DG-PMMA were well-integrated into the bone. The implants were in contact with cortical bone along the upper threads, while the lower threads were in contact with either newly formed bone or with marrow spaces. The histomorphometry and µCT evaluation showed that the GP-PMMA and PMMA implants were well osseointegrated and the bone was in direct contact with large portions of the implant surfaces, including the space in the medullary canal. Conclusions—in conclusion, the results suggest that GD-PMMA titanium surfaces enhance osseointegration in rabbit femurs. This encourages further research to obtain GD-PMMA with a greater radiopacity. Also, further in vitro and vivo animal studies are necessary to evaluate a potential clinical usage for dental implant applications.

scholarly journals Preparation and in vitro characterization of valsartan-loaded ethyl cellulose and poly(methyl methacrylate) nanoparticles

RSC Advances ◽  
2020 ◽  
Vol 10 (72) ◽  
pp. 43915-43926
Author(s):  
Eszter Hajba-Horváth ◽  
Emese Biró ◽  
Mirella Mirankó ◽  
Andrea Fodor-Kardos ◽  
László Trif ◽  
...  
Keyword(s):  
Methyl Methacrylate ◽  
Intestinal Absorption ◽  
Ethyl Cellulose ◽  
Active Agent ◽  
Poly Methyl Methacrylate ◽  
In Vitro Characterization ◽  
Spray Dried

Valsartan-loaded ethyl cellulose and poly(methyl methacrylate) nanoparticles were prepared and nano spray-dried. The active agent was structurally changed in the nanoparticles, which could be advantageous in the intestinal absorption.

scholarly journals Permeability of Novel Chitosan-g-Poly(Methyl Methacrylate) Amphiphilic Nanoparticles in a Model of Small Intestine In Vitro

Polymers ◽  
2018 ◽  
Vol 10 (5) ◽  
pp. 478 ◽  
Author(s):  
Imrit Noi ◽  
Inbar Schlachet ◽  
Murali Kumarasamy ◽  
Alejandro Sosnik
Keyword(s):  
Small Intestine ◽  
Methyl Methacrylate ◽  
Poly Methyl Methacrylate ◽  
Amphiphilic Nanoparticles
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