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24–28 Aug 2015
IAEA, Vienna
Europe/Vienna timezone

Use of Ionizing Radiation in the Production of Nanomaterials

27 Aug 2015, 14:00
1h 30m
M-Building, 1st Floor (IAEA, Vienna)

M-Building, 1st Floor

IAEA, Vienna

Board: S11b-28

Speaker

Nelida Del Mastro (IPEN-CNEN/SP, Brazil)

Description

The potential of nanomaterials technology have some very real and useful outcomes: production of materials and products with new properties, contribution to solutions of environmental problems, improvement of existing technologies and development of new applications. Due to the materials very small size (1-100nm), they have some remarkable, and in some cases, novel properties like significant enhancement of mechanical, structural and magnetic properties. A wide array of nanosystems are produced biologically that can be used for the design of functional materials [1]. The use of ionizing radiation technology seems very promising for the modification of protein films. On the other hand, there are various known methods to produce nanomaterials. Stable gelatin nanohydrogel can be prepared by irradiation providing concentration, temperature, physical confinement, dose, and dose rate effects were properly established [2]. Silica-gelatin bio-hybrid and transparent nano-coatings can be prepared through sol gel technique [3]. Nanostructural characterization of some type of gelatin had already performed showing a high potential for proteins in the field of nanotechnology [4]. [1] De, M.; Ghosh, P. S.; Rotello, V.M. Advanced Materials 20, 4225 (2008). [2] Takinami, P.Y.I. Obtention of gelatin biopolymers by ionizing radiation. PhD thesis. University of Sao Paulo, SP, Brazil (2014). [3] Smitha, S.; Mukundan, P.; Pillai, K.; Warrier, K.G.K. Materials Chem. Phys. 103, 318 (2007). [4] Yang, H.; Wang, Y.; Regenstein, J.M.; Rouse, D.B. J. Food Sci. 72, C430 (2007).
Country or International Organization BRAZIL

Primary author

Nelida Del Mastro (IPEN-CNEN/SP, Brazil)

Co-author

Dr Patricia Takinami (IPEN-CNEN/SP)

Presentation materials