Results 21 to 30 of about 58,945 (349)

Alginic Acid-acetate [PDF]

open access: yesNature, 1946
VARIOUS attempts have been described1 to acetylate alginic acid by means of acetic anhydride or acetic acid, without or with catalysts, for example, pyridine, acids, etc. Some of the products thus obtained were probably degraded, and it appeared of interest, therefore, to find out whether the acetylation of alginic acid can be done by a relatively mild
openaire   +3 more sources

3D hybrid wound devices for spatiotemporally controlled release kinetics [PDF]

open access: yes, 2012
This paper presents localized and temporal control of releasekinetics over 3-dimensional (3D) hybridwounddevices to improve wound-healing process. Imaging study is performed to extract wound bed geometry in 3D.
Koc, Bahattin   +3 more
core   +1 more source

Strain Construction and Process Development for Efficient Recombinant Production of Mannuronan C-5 Epimerases in Hansenula polymorpha

open access: yesFrontiers in Plant Science, 2022
Alginates are linear polysaccharides produced by brown algae and some bacteria and are composed of β-D-mannuronic acid (M) and α-L-guluronic acid (G).
Anne Tøndervik   +6 more
doaj   +1 more source

Alginate Scaffolds for Mesenchymal Stem Cell Cardiac Therapy: Influence of Alginate Composition [PDF]

open access: yes, 2012
Despite the success of alginate scaffolds and mesenchymal stem cells (MSCs) therapy in cardiac failure treatment, the impact of the physicochemical environment provided by alginate matrices on cell behavior has never been investigated.
Alfarano, Chiara   +7 more
core   +1 more source

Alginate: Current Use and Future Perspectives in Pharmaceutical and Biomedical Applications

open access: yesInternational Journal of Polymer Science, 2016
Over the last decades, alginates, natural multifunctional polymers, have increasingly drawn attention as attractive compounds in the biomedical and pharmaceutical fields due to their unique physicochemical properties and versatile biological activities ...
Marta Szekalska   +4 more
doaj   +1 more source

Isolation and FTIR-ATR and 1H NMR Characterization of Alginates from the Main Alginophyte Species of the Atlantic Coast of Morocco

open access: yesMolecules, 2020
Alginates are widely used as gelling agents in textile print pastes, medical industries, impression material in dentistry, and anticoagulant material in toothpaste.
Zahira Belattmania   +8 more
doaj   +1 more source

Radical Depolymerization of Alginate Extracted from Moroccan Brown Seaweed Bifurcaria bifurcata

open access: yesApplied Sciences, 2020
The degradation of alginate extracted from Moroccan Bifurcaria bifurcata has not been fully established to date. In this work, we report the extraction and the characterization of alginate (ASBB) from the brown algae B.
Bouissil Soukaina   +6 more
doaj   +1 more source

Nitrogen sorption as a tool for the characterisation of polysaccharide aerogels [PDF]

open access: yes, 2011
Supercritically dried aerogels of several polysaccharides (chitin, chitosan, alginate, alginic acid, k- carrageenan, and agar) have been characterised by physisorption ofN2. Surface areas as high as 570m2 g−1 have been measured.
Boissière, M.   +7 more
core   +3 more sources

A comparison of enhancement techniques for footwear impressions on dark and patterned fabrics [PDF]

open access: yes, 2013
The use of chemical enhancement techniques on porous substrates, such as fabrics, poses several challenges predominantly due to the occurrence of background staining and diffusion as well as visualisation difficulties.
Bandey, Helen   +3 more
core   +3 more sources

Sodium and potassium alginates extracted from Macrocystis pyrifera algae for use in dental impression materials

open access: yesCiencias Marinas, 2004
 Sodium and potassium alginates were extracted at the pilot plant scale from the giant kelp, Macrocystis pyrifera, from Bahía Tortugas, Baja California Sur, Mexico.
R Reyes-Tisnado   +4 more
doaj   +1 more source

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