Green synthesis and the stablization of selenium nanoparticles using carboxylmethyl starch

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dc.contributor.authorVishakha, Vishakhacs
dc.contributor.authorAbdellatif, Abdelmohsancs
dc.contributor.authorJančář, Josefcs
dc.date.accessioned2021-05-04T10:54:20Z
dc.date.available2021-05-04T10:54:20Z
dc.date.issued2020-12-28cs
dc.description.abstractThe growing interest in biodegradable products paves the way for the safest sustainable earth. Starch is an extensively studied, cost-effective, easily accessible, and highly trusted resource to produce biodegradable products in the present and future. However, the exploitation of these starch in several fields requires substantial changes in its chemical functionalities and related properties. Here, we investigated the conditions (pH, temperature, the concentration of starch, concentration of chloroacetate, time, the ratio between starch/sodium hydroxide, etc.) that affect the preparation of carboxymethyl starch (CMS). The chemical structure and degree of substitution of native starch and CMS were confirmed by Fourier transform infrared ( FTIR), X-ray powder diffraction (XRD), Thermogravimetric analysis (TGA), potentiometric titration, Scanning electron microscope (SEM), and Nuclear magnetic resonance spectroscopy (NMR ). CMS's rheological properties show that CMS's intrinsic viscosity increased with increased degrees of substitutions (DS) from CMS (0.05 to 0.45). The CMS with different DS (0.05 to 0.45) was used for the first time to stabilize selenium nanoparticles (Se-NPs), showing spherical shape with a high homogenous size of Se-NPs (approx. 50 nm). The NPs shape and size stability were investigated and confirmed by different techniques like Dynamic light scanning (DLS), SEM, and Transmission electron microscope (TEM)en
dc.formattextcs
dc.format.extent433-439cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationProceedings 12th International Conference on Nanomaterials - Research & Application. 2020, p. 433-439.en
dc.identifier.doi10.37904/nanocon.2020.3754cs
dc.identifier.isbn978-80-87294-98-7cs
dc.identifier.other170746cs
dc.identifier.urihttp://hdl.handle.net/11012/196680
dc.language.isoencs
dc.publisherTangercs
dc.relation.ispartofProceedings 12th International Conference on Nanomaterials - Research & Applicationcs
dc.relation.urihttps://doi.org/10.37904/nanocon.2020.3754cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectSelenium nanoparticlesen
dc.subjectCarboxymethyl starchen
dc.subjectStarchen
dc.subjectBiopolymeren
dc.titleGreen synthesis and the stablization of selenium nanoparticles using carboxylmethyl starchen
dc.type.driverconferenceObjecten
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-170746en
sync.item.dbtypeVAVen
sync.item.insts2021.05.04 12:54:20en
sync.item.modts2021.05.04 12:14:38en
thesis.grantorVysoké učení technické v Brně. Fakulta chemická. Ústav chemie materiálůcs
thesis.grantorVysoké učení technické v Brně. Středoevropský technologický institut VUT. Středoevropský technologický institut VUTcs
thesis.grantorVysoké učení technické v Brně. Středoevropský technologický institut VUT. Pokročilé polymerní materiály a kompozitcs
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Pokročilé polymerní materiály a kompozit
Středoevropský technologický institut VUT
Ústav chemie materiálů