Parası kalmadığı için otobüse binemiyordur ailesi porno izle ona daha yeni para gönderdiği için tekrar porno istemeye utanınca mecburen otostop çekmek için youporn çantasını alarak yol kenarına gelir etekli porno liseli türk kız yol kenarında dururken yanına yaklaşan porno kibar bir gencin onu gideceği yere kadar bırakmak porno izle istemesine çok mutlu olur arabaya bindiklerinde gideceği yer ile porno arabayı kullanan adamın gittiği yer arasında çok mesafe sex izle farkı olduğunu anlayan türk kız bu yaptığı porno indir iyilik karşısında arabada ona memelerini açar porno sapıklaşan adam yol kenarındaki hotelde durarak porno izle üniversiteli otostop çeken türk kızına odada sakso çektirip sikerMaterials Technology 2019: Design of high refractive index polymers for ophthalmological applications- Norbert Hampp, University of Marburg, Germany| Abstract

7187379870

All submissions of the EM system will be redirected to Online Manuscript Submission System. Authors are requested to submit articles directly to Online Manuscript Submission System of respective journal.

Abstract

Materials Technology 2019: Design of high refractive index polymers for ophthalmological applications- Norbert Hampp, University of Marburg, Germany

Author(s): Norbert Hampp

 The present tools to predict key parameters of polymers for intraocular lenses, i.e. refractive index, Abbe number, and glass transition point from easy available basic data. The theoretical models work nicely with acrylate and silicone base polymers. The development of new polymers is still run in a try-and-error approach. As apart from the above mentioned three key para¬meters numerous other parameters need to be considered, theoret¬ical tools drastically reduce lab work and save time. Several new polymers have been designed. They were fully characterized and tested for their biocompatibility in rabbits (see Fig.1). Silicone backbone polymers with selected side groups allow meeting the required parameters for high refractive index polymers for intraocular lenses, i.e. refractive index n ≥ 1.58, Abbe ≥ 30 and glass transition temperature ≤ 20°C. Biography: Norbert Hampp has completed his first PhD in 1986 in Pharmaceutical Biology and his second PhD in 1992 in Physical Chemistry. Currently he serves as the Dean of the chemical department at Marburg University, Germany. He has published more than 220 papers in reputed journals. He filed 19 patent families.


Share this       
Google Scholar citation report
Citations : 291

Materials Science: An Indian Journal received 291 citations as per Google Scholar report

Indexed In

  • CASS
  • Google Scholar
  • Open J Gate
  • China National Knowledge Infrastructure (CNKI)
  • Cosmos IF
  • Directory of Research Journal Indexing (DRJI)
  • Secret Search Engine Labs

Read More

Flyer