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División Polímeros Biomédicos
Instituto de Investigaciones en Ciencia y Tecnología de Materiales, INTEMA (UNMdP - CONICET)

Av. Colón 10850
B7606BWV Mar del Plata
Argentina
Tel.: +54 223 626 0600

diciembre 4, 2019

Seminario del Dr. Alexander Yarin en INTEMA

El Prof. Dr. Alexander L. Yarin, UIC Distinguished Professor at the Department of Mechanical and Industrial Engineering, University of Illinois at Chicago dictará el seminario «Bio-waste-derived nanofibers formed by solution blowing and electrospinning and their applications in biomedicine and heavy metals removal» el próximo 19 de diciembre a las 10 hs. en el auditorio de INTEMA.

El Dr. Yarin es especialista reconocido internacionalmente en el campo de electrohilado de polímeros. Junto a su equipo utilizan materiales derivados de desechos agrícolas para la obtención de materiales nanofibrosos que tienen propiedades que son importantes para numerosas aplicaciones bio/nanotecnológicas de interés académico e industrial.

Resumen del seminario:
Solution blowing of such plant-derived biomaterials as soy protein, zein, lignin, oats, sodium alginate and cellulose acetate, and such animal-derived biomaterials as silk protein (sericin), chitosan and bovine serum albumin, was demonstrated as a versatile, robust and industrially scalable approach to form monolithic and core-shell nanofibers from bio-waste. The collected nanofiber mats were also bonded both chemically and physically to increase the tensile strength to widen the range of applications. Rhodamine B and Riboflavin were used as model hydrophilic drugs in controlled release experiments after they had been encapsulated in solution-blown hydrophilic nanofibers, and the release kinetics was studied in detail. Nanofiber membranes containing such biopolymers as lignin, oats, soy protein, sodium alginate and chitosan were used for heavy metals adsorption from aqueous solutions. The results revealed attractive capabilities of these inexpensive nano-textured biopolymer adsorbents formed from agro waste materials using the process scalable to the industrial level.