Materials Based on Guar and Hydroxypropylguar Filled with Nanocrystalline Polysaccharides

SOTNIKOVA, YU. S.; Демина, Т. С.; Istomin, A. V.; Svidchenko, Evgeniya A.; Субчева, Е. Н.; Сурин, Н. М.; Акопова, Т. А.; Зеленецкий, А. Н.

doi:10.1007/s10692-017-9867-x

Cited by 6 publications

(3 citation statements)

References 13 publications

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“…as well as conditions and quality of demineralization and deproteinization stages [36]. An X-ray analysis showed that a crystallinity of the extracted nanocrystals was higher than that of corresponding raw polysaccharides, while the positions of characteristic peaks were unchanged [35].…”

Section: Resultsmentioning

confidence: 99%

“…e ash contents of raw chitins were 0.16 wt.% and 1.76 wt.% for "Kombio" and "Xiamen Fine Chemical," respectively. e nanocrystals were obtained by acidic hydrolysis of the chitin samples according to the procedure described in [34,35]. Poly(L,L-lactide) (PLLA) with an average molecular weight of 160 kDa was purchased from Sigma-Aldrich and used as a core material for the microparticle fabrication.…”

Section: Methodsmentioning

confidence: 99%

“…e size and morphology of the prepared ChN were evaluated using atomic force microscopy NtegraPrima (NT-MDT, Russia) in tapping mode. e samples for AFM analysis were prepared as follows: 0.1 wt.% aqueous dispersions were dropped on a cover glass and dried in a dust-free chamber [35]. e AFM images were analyzed using Image Analysis 2.0 (NT-MDT, Russia) software.…”

Section: Atomic Force Microscopy (Afm)mentioning

confidence: 99%

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Preparation of Poly(L,L‐Lactide) Microparticles via Pickering Emulsions Using Chitin Nanocrystals

Демина¹,

SOTNIKOVA²,

Istomin³

et al. 2018

Advances in Materials Science and Engineering

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The aim of the present study was to investigate an ability of chitin nanocrystals to be used as stabilizing components for fabrication of poly(L,L-lactide) microparticles via the Pickering oil/water emulsion solvent evaporation technique. The anisometric chitin nanocrystals were extracted from two different samples of crab shell chitin via acetic hydrolysis and analyzed using atomic force microscopy, dynamic light scattering, and FTIR spectroscopy. The extracted nanocrystals showed no difference in the chemical structure but possessed different morphology and aspect ratios as a function of raw chitin used. The effect of chitin nanocrystals characteristics and concentration in the aqueous phase on the total yield, size distribution, and shape and surface morphology of the prepared polylactide microparticles was evaluated.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Atomic Force Microscopy (Afm)mentioning

confidence: 99%

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