Dersleri yüzünden oldukça stresli bir ruh haline sikiş hikayeleri bürünüp özel matematik dersinden önce rahatlayabilmek için amatör pornolar kendisini yatak odasına kapatan genç adam telefonundan porno resimleri açtığı porno filmini keyifle seyir ederek yatağını mobil porno okşar ruh dinlendirici olduğunu iddia ettikleri özel sex resim bir masaj salonunda çalışan genç masör hem sağlık hem de huzur sikiş için gelip masaj yaptıracak olan kadını gördüğünde porn nutku tutulur tüm gün boyu seksi lezbiyenleri sikiş dikizleyerek onları en savunmasız anlarında fotoğraflayan azılı erkek lavaboya geçerek fotoğraflara bakıp koca yarağını keyifle okşamaya başlar
GET THE APP
Optimization Of Conditions For Obtaining Hydrogels Of PVA/SMTP And Evaluation Of The Presence Of Crosslinks Between Chains | 17125
ISSN: 2155-952X
Journal of Biotechnology & Biomaterials
Open Access
Like us on:
Our Group organises 3000+ Global Conferenceseries Events every year across USA, Europe & Asia with support from 1000 more scientific Societies and Publishes 700+ Open Access Journals which contains over 50000 eminent personalities, reputed scientists as editorial board members.
Silicone oils have been used as a vitreous humor substitute to treat difficult cases. However, several side effects are described,
for example, glaucoma, hyperopia, and loss of transparency by means of emulsification. Thus, during the development
of this work, the conditions for obtaining polyvinyl alcohol hydrogels using trisodiumtrimetaphosphate as the crosslinking
agent were optimized (initial pH=9.48, mass=4.3067 g, SMTP/PVA ratio=1/6,154). After optimization of the conditions for
obtaining of hydrogel, experiments were conducted, in this condition, in triplicates, with the hydrogel obtained analyzed with
respect to the density, viscosity, final pH and refractive index at different temperatures and the results obtained at 36?C, have
shown promise for the future application of these hydrogels as vitreous substitutes (density=1.01 g/mL; kinematic viscosity=4.2
mm
2
/s; dynamic viscosity = 4.2 mPas, refractive index = 1.34 and final pH = 7.18) . FTIR and DSC analysis of the film obtained
by drying the hydrogel synthesized in optimized conditions were also performed and recorded the occurrence of crosslinks in
the presence of trisodiumtrimetaphosphate (SMTP). Finally, analysis of cytotoxicity of hydrogels using Artemiasalina being
verified a low death of larvae during a period of 24 h were performed.
Biography
Andreia de A Morandim-Giannetti graduated in Bachelor of Technology Chemistry from the Universidade Estadual Paulista J?lio de Mesquita Filho (1997) and PhD
in Chemistry from the Universidade Estadual Paulista J?lio de Mesquita Filho (2004). He is currently full-time at Centro Universit?rio da FEI (SBC). Has experience
in the field of chemistry and biotechnology
Relevant Topics
Peer Reviewed Journals
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals