Formation of nanometal particles in the dialdehyde starch matrix

Karen Khachatryan , Gohar Khachatryan , Maciej Fiedorowicz , Andrzej Para , Piotr Tomasik


Environmentally friendly method of the preparation of dialdehyde starch (DAS) based composites containing nanosilver (DAS/Ag) and nanogold (DAS/Au) as reducing and protecting agents was developed. UV-vis spectroscopy, transmission electron microscopy (TEM) and X-ray diffraction (XRD) confirmed formation of about 10nm ball shaped Ag and Au nanoparticles situated within the polysaccharide template. Thermal properties of the composites were characterized involving differential scanning calorimetry (DSC), whereas molecular weights of polysaccharide chains of the matrix were estimated with the size exclusion chromatography coupled with multiangle laser light scattering and refractometric detectors (HPSEC-MALLS-RI). Formation of nanosilver and nanogold containing composites led to induction of the polymerization and/or crosslinking reactions of DAS molecules, resulting in a significant rise of molecular weight of polysaccharide chains constituting DAS/Ag and DAS/Au composite templates.
Author Karen Khachatryan (FoAaE / DoChaP)
Karen Khachatryan,,
- Department of Chemistry and Physics
, Gohar Khachatryan (FoAaE / DoChaP)
Gohar Khachatryan,,
- Department of Chemistry and Physics
, Maciej Fiedorowicz (FoAaE / DoChaP)
Maciej Fiedorowicz,,
- Department of Chemistry and Physics
, Andrzej Para (FoAE / IoCHaP)
Andrzej Para,,
- Institute of Chemistry and Physics
, Piotr Tomasik (FoAE)
Piotr Tomasik,,
- Faculty of Agriculture - Economic
Journal seriesCarbohydrate Polymers, ISSN 0144-8617, (A 40 pkt)
Issue year2013
Publication size in sheets0.5
Keywords in EnglishBiocomposites, Nanogold, Nanometals, Nanosilver
Internal identifierWRE/2013/1
Languageen angielski
Score (nominal)40
ScoreMinisterial score = 40.0, 17-06-2019, ArticleFromJournal
Ministerial score (2013-2016) = 40.0, 17-06-2019, ArticleFromJournal
Publication indicators WoS Citations = 13
Citation count*9 (2016-03-26)
Additional fields
FinansowanieNCBiR (Narodowe Centrum Badań i Rozwoju) - N R12 0015 06
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