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Monday, April 27, 2020 | History

2 edition of Interpolyelectrolyte complexes of chitosan found in the catalog.

Interpolyelectrolyte complexes of chitosan

N. A. Samoilova

Interpolyelectrolyte complexes of chitosan

  • 400 Want to read
  • 18 Currently reading

Published by Nova Science Publishers in New York .
Written in English

    Subjects:
  • Biotechnology,
  • Chemistry,
  • Chitosan,
  • Electrolytes

  • Edition Notes

    Includes bibliographical references and index.

    StatementN.A. Samoilova, M.A. Krayukhina and I.A. Yamskov
    SeriesBiochemistry research trends, Biochemistry research trends series
    ContributionsKrayukhina, M. A. (Maria A.), 1976-, Yamskov, I. A. (Igor A.), 1944-
    Classifications
    LC ClassificationsTP248.65.C55 S26 2011
    The Physical Object
    Pagination74 p. ;
    Number of Pages74
    ID Numbers
    Open LibraryOL25051726M
    ISBN 101617611948
    ISBN 109781617611940
    LC Control Number2010029767
    OCLC/WorldCa649795852

      Turbidimetric titration and laser scattering methods were used to assess the phase behavior of mixtures of chitosan and hyaluronic acid in aqueous solutions in relation to interaction conditions. Conditions were found in which stable water dispersions with particle size of up to nm can be obtained. It was found that the molar ratios and the overall concentration mode of Cited by: 1.


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Interpolyelectrolyte complexes of chitosan by N. A. Samoilova Download PDF EPUB FB2

The results of studies of interpolyelectrolyte complexes of chitosan and different polyanions are summarised and described systematically in this book.

Specific properties of chitosan as. Free 2-day shipping. Buy Interpolyelectrolyte Complexes of Chitosan at nd: N A Samoilova.

We would like to show you a description here but the site won’t allow more. Polymeric drug delivery systems are mainly designed for the efficient delivery of active drug. Among various polymeric drug delivery systems, interpolyelectrolyte complexes are most new, efficient form of polymeric carriers for novel drug delivery systems [].Cited by: Title: Chitosan-Polycarbophil Complexes in Swellable Matrix Systems for Controlled Drug Release VOLUME: 4 ISSUE: 4 Author(s):Z.

Lu, W. Chen and J. Hamman Affiliation:School of Pharmacy,Tshwane University Interpolyelectrolyte complexes of chitosan book Technology, Private Bag X, Pretoria, ,South Africa.

Keywords:Chitosan, polycarbophil, interpolyelectrolyte complex, drug release kinetics. Antibacterial Activity of Chitosan and the Interpolyelectrolyte Complexes of Poly(acrylic acid)-Chitosan Article (PDF Available) in Brazilian Archives of Biology.

Chitosan-polycarbophil interpolyelectrolyte complex as a matrix former for controlled release of poorly water-soluble drugs I: in vitro evaluation.

Interpolyelectrolyte complexes of chitosan book Z(1), Chen W, Hamman JH. Author information: (1)Department of Pharmaceutical Sciences, Tshwane University of Technology, Pretoria, South by: 8.

Polyelectrolyte complexes of chitosan: Formation, properties and applications. The results of studies of polyelectrolyte complexes of chitosan are summarised and described systematically.

Chitosan complexes with biopolyelectrolytes, with modified natural polyelectrolytes and with synthetic polyanions are considered. chitosan was also found to be dependent on its charges and solubility.

The interpolyelectrolyte complexes are the products of reactions between electrostatic complementary chains. It Interpolyelectrolyte complexes of chitosan book known that water soluble non-stoichiometric interpolyelectrolyte Interpolyelectrolyte complexes of chitosan book (NPEC) can be.

Interpolyelectrolyte complexes were prepared by mixing positively charged CS and negatively charged sodium salt of PSSMA. 15 mL of aqueous solution of polyanion, with concentrations ranging between and g L −1, were added to 15 mL Interpolyelectrolyte complexes of chitosan book aqueous solution with concentration g L − by: 8.

Diethylaminoethyl chitosan–hyaluronic acid polyelectrolyte complexes. International Journal of Biological Macromolecules, DOI: /ac Justin Horn, Rachel Kapelner, Allie Obermeyer. Macro- and Microphase Separated Protein-Polyelectrolyte Complexes: Design Parameters and Current by: 1.

Interpolyelectrolyte Complexes of Maleic Interpolyelectrolyte complexes of chitosan book Copolymers and Chitosan for Stabilization and Functionalization of Magnetite Nano- and Microparticles.

A separate subsection is devoted to amphoteric behavior of interpolyelectrolyte complexes. The realization of the so-called “isoelectric effect” for interpolyelectrolyte complexes of water-soluble polyampholytes, amphoteric hydrogels and cryogels with respect to surfactants, dye molecules, polyelectrolytes and proteins is demonstrated.

Interpolyelectrolyte complexes (IPECs) between chitosan (CTS) and Eudragit L have been obtained and characterized by turbidimetry, viscometry, and elemental analysis. The structure of the synthesized IPECs was studied using IR spectroscopy. The IPEC composition (defined as the component ratio, [CTS]/[L]) depends on the molecular weight Cited by: 4.

Repair of an articular cartilage defect using adipose-derived stem cells loaded on a polyelectrolyte complex scaffold based on poly(l-glutamic acid) and chitosan.

Acta Biomaterialia9 (7), DOI: / With a view to the application in Interpolyelectrolyte complexes of chitosan book controlled drug delivery systems, the formation of interpolyelectrolyte complexes (IPEC) between chitosan (CS) and Eudragit ® L (L) or Eudragit ® L (L) was investigated at pHusing elementary analysis.

The interaction or binding ratio of a unit molecule Cited by:   Chitosan-alginate polyelectrolyte complex. Alginate is a natural, linear, unbranched, biodegradable polysaccharide consisting of 1,4-linked β-d-mannuronic acid and α-l-guluronic acid monomers in varying proportions (Figure 2).Alginates are extracted from brown seaweeds and marine algae such as Laminaria hyperborea, Ascophyllum nodosum and Cited by: The state of the art and advances in the field of experimental research on solutions of polyelectrolyte complexes based on biopolymers, in particular oligomeric fragments, chitosan or nucleic acids, are analyzed in a review.

95 Soluble biopolyelectrolyte complexes were shown to be promising for solving challenging practical problems. For. Interpolyelectrolyte complexes of maleic acid copolymers and chitosan for stabilization and functionalization of magnetite nano‐ and microparticles.

Nadezhda by: 9. A facile method of preparation of stabilized and functionalized nano‐ and microparticles of magnetite by successive application of oppositely charged polymers with a regular structure of macromolecular chains (chitosan and maleic acid copolymers) onto Fe 3 O 4 core are developed.

This approach makes it possible to create two types of magnetite interpolyelectrolyte Cited by: 9. Experimental results were obtained for typical complexes, such as κ-carrageenan–gelatin, chitosan–gelatin and sodium alginate–gelatin complexes.

A rheological method allows us to examine the physical state of a complex in aqueous phase and the kinetics of the sol–gel transition and temperature dependences of properties as a result of. AgNPs-Chitosan solution forms interpolyelectrolyte complex films with anionic poly(AAm-co-IA).

These films show fair antibacterial property against strong pathogen E. Coli. The Particle size of synthesized AgNPs was found to be in the range 10–30 by: 7. Aspects of the formation of gels of interpolyelectrolyte complexes (IPECs) based on sodium alginate (NaAlg) and chitosan are studied.

The effect the conditions of synthesis and complex composition have on the morphological structure and functional properties of these complexes is by: 3. Interpolyelectrolyte complex (IPEC) nanoparticles formed between chitosan having different molar masses (,and kDa) and two random copolymers of 2-(acrylamido)methylpropanesulfonate (AMPS) with tert-butylacrylamide (TBA) [P(AMPSco-TBA46) and P(AMPSco-TBA63)] were prepared by the dropwise addition of polyanion onto the chitosan Cited by: The interpolyelectrolyte complexes are the products of reactions between electrostatic complementary chains.

It is known that water soluble non-stoichiometric interpolyelectrolyte complexes (NPEC) can be obtained from oppositely charged polyelectrolytes of.

This book delves deeply in to the preparation, characterization and multiple applications of chitin and chitosan. The 17 chapters written by leading experts is an excellent reference source and state-of-the-art review for researchers and scientists using chitosan or biopolymers in their respective areas.

The interpolyelectrolyte complex was prepared by mixing of the dendritic-like polyelectrolyte lignosulfonate and the linear polysaccharide chitosan with different molar ratios. The idea of this research consists in the sequential combination of interpolymer complexation, supercritical fluid treatment and high-temperature by: 1.

A simple method, based on homogenizing interpolyelectrolyte complex, has been developed to prepare a chitosan–alginate sponge with high stability. The spongelike chitosan–alginate hydrogel can be used as a wound dressing for the sustained release of silver sulfadiazine (AgSD) in a controlled by: F.

Biguccia et al., 39 (), investigated the influence of polyelectrolyte complexes composed of chitosan and pectin on the release behaviour of vancomycin. Polyelectrolyte complexes between chitosan and pectin were prepared in various pH regions and at different molar ratios by mixing solutions of pectin and chitosan with the same ionic.

Antibacterial activity of chitosan and the interpolyelectrolyte complexes of poly(acrylic acid)-chitosan. Contents: General concept of the formation of interpolyelectrolyte complexes -- Interpolyelectrolyte complexes of chitosan with biopolyelectrolytes -- Interpolyelectrolyte complexes of chitosan with synthetic polyanions.

NLM ID: [Book]. Interpolyelectrolyte complexes (IPECs) are typically formed when two polyelectrolytes of opposite charge are mixed together in solution.

We present an overview of different strategies for the preparation of micellar IPECs, i.e., structures where such IPEC domains form the core or the shell of addition, vesicular architectures are considered, where the IPEC domain. Precipitation method is employed for preparation of chitosan and polycarbophil interpolyelectrolyte complex (IPEC) followed by characterization with Fourier transform infrared spectroscopy (FT-IR), Differential Scanning calorimeter (DSC) and X-ray Diffraction (XRD).

5-FU tablets were prepared by direct compression using by: Chitosan/ Sterculia striata polysaccharides nanocomplex as a potential chloroquine drug release device. International Journal of Biological Macromolecules88, DOI: /acCited by:   Interpolyelectrolyte complexes (IPECs) between chitosan (CTS) and Eudragit L have been obtained and characterized by turbidimetry, viscometry, and elemental analysis.

The structure of the synthesized IPECs was studied using IR spectroscopy. The IPEC composition (defined as the component ratio, [CTS]/[L]) depends on the molecular weight. chitosan-polycarbophil interpolyelectrolyte complex-based 5-fluorouracil formulations for buccal, vaginal and rectal application Mohamed S Pendekal* and Pramod K Tegginamat Abstract Background of the study: The present investigation was.

In this study, various interpolyelectrolyte complexes (IPECs), formed between Eudragit RL (EL) and chitosan (CS), by nonstoichiometric method, and tablets based on the IPECs, prepared by wet granulation, were evaluated as potential oral CTDDSs for ibuprofen (IBF).

The main characteristic that confers special interest to these interpolyelectrolyte complexes is the simplicity and versatility of the method used for their fabrication, although in some cases this may hide the complex influence of the different physico-chemical by: 1.

Chitosan is a partially deacetylated derivative of chitin, a natural polysaccharide extracted from crustaceans, insects and certain fungi. Owing to its unique properties such as biodegradability, biocompatability, biological activity, and capacity of forming polyelectrolyte complex with anionic polyelectrolytes, chitosan has been widely applied in the food and Author: Samuel P.

Davis. Preparation of Chitosan: Eudragit RL Interpolyelectrolyte Complexes (IPECs) The IPEC of CS and EL was prepared following the standard procedures with slight modifications [12, 23–27].Chitosan mg was accurately weighed and dissolved in 15 mL of 3% v/v acetic acid followed by the addition of 8 mL volume of 5 M ammonium by:.

Chitosan Interpolyelectrolyte Complexes ARTICLE AUGUST DOI: // Source: PubMed Pdf 3 READS 76 2 AUTHORS: Kenneth Ofokansi University of Nigeria 40 PUBLICATIONS CITATIONS SEE PROFILE Franklin Kenechukwu University of Nigeria 47 PUBLICATIONS 75 CITATIONS.The download pdf of the availability of Se, with the use of biopolymer complexes, was sought in Lactuca sativa var.

Great Lakes, grown in substrate pots treated with SeO2 (5 mg Se/plant), chitosan-polyacrylic acid complex + Se (Cs-PAA + Se) (5 mg Se/plant), and chitosan-polyacrylic acid complex (Cs-PAA).Author: Paola Leija-Martínez, Adalberto Benavides-Mendoza, Marcelino Cabrera-De La Fuente, Armando Robledo-O.

Ebook membranes prepared from polyelectrolyte complex (PEC) have been used for repair of wounds and controlled antibacterial release. A simple method, based on homogenizing interpolyelectrolyte complex, has been developed to prepare a chitosan-alginate sponge with high by: