repeating unit of sodium alginate polymer

Preparation and characterization of sodium alginate

Preparation and characterization of sodium alginate-carbopol-934P based mucoadhesive microbeads Rishi Pal Anil P S Bhadoria and Suman Ramteke * School of Pharmaceutical Sciences Rajiv Gandhi Proudyogiki Vishwavidyalaya Bhopal India _____ ABSTRACT The purpose of the research work was to formulate and evaluate oral sustained release microspheres of clarithromycin for the treatment of

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Spectroscopic Studies on the Interaction of Toludine Blue

Blue Dye with Sodium Alginate Polyelectrolyte Banti Ganguly1 R K Nath2 include the molecular weight of each repeating unit of polymer stoichiometry of the dye-polymer complex association constant and other related thermodynamic parameters Such studies are beneficial in understanding the physiology biochemistry and physical chemistry of macromolecules [6] Studies on dye-polymer

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Jian Du and You

(G unit) and (1 → 4)-β-D-mannuronate (M unit) in varying proportions and sequential arrangements [17 18] Within alginate polymer the M and G monomers are sequentially assembled in either repeating (MM or GG) or alternating (MG) blocks [17 18] At neutral pH alginate solution at a concentration of ∼2 wt% appears semi-dilute where intermolecular interactions are dominant [19 20] At

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Agarose

Agarose is a polysaccharide generally extracted from certain red seaweed It is a linear polymer made up of the repeating unit of agarobiose which is a disaccharide made up of D-galactose and 3 6-anhydro-L-galactopyranose Agarose is one of the two principal components of agar and is purified from agar by removing agar's other component agaropectin

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what is sodium alginate ?

what is sodium alginate what is sodium alginate Sodium alginate a natural polysaccharide has the necessary stability solubility viscosity and safety of pharmaceutical excipients Alginate extract in phaeophyceae was first studied in 1881 by the British chemist E C Stanford He found that the alginate extract has several interesting properties such as the ability to concentrate solution

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ALGINATE/CELLULOSE COMPOSITE BEADS FOR ENVIRONMENTAL

Alginate/cellulose composite beads for environmental applications 169 Fig 1 SEM images characteristic for beads composite: A) alginate 3% / zinc acetate - 100x B) alginate3% / 10%cellulose / zinc acetate - 100x C) alginate3% / 25% cellulose / CaCl 2 - 100x D) details recorded at 10kx magnification highlighting defects induced by the presence of 25% of

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The basic repeating unit in polystyrene is?

28/10/2010The basic repeating unit in polystyrene is? a -CH2- C(CH3)= CH - CH2 - b - H2C - CH2 - c - HC(CH3)- CH2 - d -HC(CH3) - CH(CH3) - e -HC(C6H5) - CH2 - Answer Save 2 Answers Relevance Xemyst Lv 4 10 years ago Favourite answer e -HC(C6H5) - CH2 - 0 0 0 Log in to reply to the answers Post ayyad Lv 4 3 years ago Repeating Unit Of Polystyrene Source(s):

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Alginate Particles as Platform for Drug Delivery by the

Due to the high chemical functionality (two –OH and one –COOH per repeating unit) the chemical modification of the side chain of ALG has been extensively explored to increase its solubility in aprotic solvents [27 68] to modify other physicochemical properties [69 70] to attain biomimetic and amphiphilic features and to conjugate cell signalling ligands [73 74]

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The basic repeating unit in polystyrene is?

28/10/2010The basic repeating unit in polystyrene is? a -CH2- C(CH3)= CH - CH2 - b - H2C - CH2 - c - HC(CH3)- CH2 - d -HC(CH3) - CH(CH3) - e -HC(C6H5) - CH2 - Answer Save 2 Answers Relevance Xemyst Lv 4 10 years ago Favourite answer e -HC(C6H5) - CH2 - 0 0 0 Log in to reply to the answers Post ayyad Lv 4 3 years ago Repeating Unit Of Polystyrene Source(s):

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Alginate Particles as Platform for Drug Delivery by the

Due to the high chemical functionality (two –OH and one –COOH per repeating unit) the chemical modification of the side chain of ALG has been extensively explored to increase its solubility in aprotic solvents [27 68] to modify other physicochemical properties [69 70] to attain biomimetic and amphiphilic features and to conjugate cell signalling ligands [73 74]

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Carbohydrates

Carbohydrates - Chemical Structure Cellulose Cellulose is a polymer of β-D-Glucose which in contrast to starch is oriented with -CH 2 OH groups alternating above and below the plane of the cellulose molecule thus producing long unbranched chains The absence of side chains allows cellulose molecules to lie close together and form rigid structures

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The Slime of Pattern: Hidden Order in Gooey Glubber

So each repeating unit in polymer has a negatively charged region and a positively charged region Water (H20) itself is like this with the oxygen hogging the electrons from the hydrogen In the case of water and PVOH the Hydrogen atom has a net positive charge because its electrons are hogged by Oxygen Because the PVOH molecules are polar as is water it dissolves in water Another

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Depolymerization of Sodium Alginates by e

The chemical structure of the depolymerized sodium alginate (DSA) was analyzed to have scission of 1 4-glycoside bond mainly and a few fragmentary formate end groups which may be produced by the cleavage between C2 and C3 in repeating unit of alginate It turned out to have simple chemical structures at the DSA end groups produced by e-beam irradiation similar with those in the polymer

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pH‐sensitive hydrogel based on carboxymethyl chitosan

Journal of Applied Polymer Science Volume 136 Issue 1 Article Free Access pH‐sensitive hydrogel based on carboxymethyl chitosan/sodium alginate and its application for drug delivery Cong‐Xia Xie State Key Laboratory Base of Eco‐chemical Engineering College of Chemistry and Molecular Engineering Qingdao University of Science and Technology Qingdao 266042 People's Republic of

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Biomedical and Pharmaceutical Applications of Alginate and

The characterization of key parameters for each polymer will be necessary Description of alginate and chitosan ALGINATE Alginate extracted from brown algae is a linear polymer composed of two uronic acid monosaccharides: D-mannuronic (M) and L-guluronic (G) acid linked by ~(1--+4) and Il( 1-+4) glycosidic bonds The two monomers are arranged in homopolymeric blocks 'To whom

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Spectroscopic Studies on the Interaction of Toludine Blue

Blue Dye with Sodium Alginate Polyelectrolyte Banti Ganguly1 R K Nath2 include the molecular weight of each repeating unit of polymer stoichiometry of the dye-polymer complex association constant and other related thermodynamic parameters Such studies are beneficial in understanding the physiology biochemistry and physical chemistry of macromolecules [6] Studies on dye-polymer

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Transport and Stability of Biological Molecules in

2 Materials and Methods Cell culture grade sodium alginate (lot#1353824 %G ≥ 60 M v ~240 kDa determined from intrinsic viscosity in 0 1 M sodium chloride []) was obtained from Sigma Aldrich (St Louis MO) Polymer solutions were made with water from a NanoPure Water System (nanopure water) purified to 18 mΩ/cm Bovine serum albumin (BSA) HEPES buffer D(+)-glucose sodium pyruvate

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Polymers containing polysaccharides such as alginates

04/11/2003Polymers containing polysaccharides such as alginates or modified alginates i e # of repeating unit on each polymer molecule: 535-695 Nondegradable from of backbone Side Chain: Oligo-guluronate(Gul) Each of the sodium guluronate units has 198 MW so 25 units has MW of 4950 i e −5000 Comb Polymers PAM-Gul by Direct Linking of Backbone to Side Chains Incorporation of

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and Reagents

Analysis: Enzymes Kits and Reagents Agarase 2 Alginate Lyase 2 Cellulose Lichenen and Glucan Degrading sodium alginate (pH 6 3) Incubate at 37 C for 30 minutes Terminate reaction by addition of 4 65 mL of 0 1 N NaOH One unit will produce an increase the A235 nm of 1 0 per minute per mL of sodium alginate solution at pH 6 3 at 37 C E A1603-100MG 100 mg Cellulose Lichenan

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Alginate dialdehyde (AD)

Moreover alginate can be regarded as a true block copol - ymer composed of homo-polymeric regions of M and g termed M- and g-blocks respectively interspersed with regions of alternating structure Finally alginates have no regular repeating unit and that the distribu-tion of the monomers along the polymer

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Graft modification of chitosan cellulose and alginate

Review article Graft modification of chitosan cellulose and alginate using reversible deactivation radical polymerization (RDRP) Joe Glasing a Pascale Champagne b Michael F Cunningham a * a Department of Chemical Engineering Queen's University Kingston Ontario K7L 3N6 Canada b Department of Civil Engineering Queen's University Kingston Ontario K7L 3N6 Canada

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Sodium Alginate (alginate algin)

Sodium Alginate is a natural polysaccharide product extracted from brown seaweed that grows in cold water regions In modernist cuisine sodium alginate is mostly used with calcium salts to produce small caviar-like and large spheres with liquid inside that burst in the mouth Sodium Alginate is also used in the food industry to increase viscosity and as an emulsifier

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Introduction of polymer

Introduction of polymer 1 POLYMERS By Ravi Goyani M S(Pharm )Pharmaceutic s I D No 307/14 1/04/2015 1 2 Contents 1 Introduction 2 Classification 3 Properties of polymer 4 Characteristics of ideal polymer 5 Advantages of polymer 6 Applications of polymer 1/04/2015 2 3 Introduction A word polymer is a combination of two Greek word "POLY" means many and "MEROS" meaning "parts o

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Influence of concentration ionic strength and pH on zeta

In this work sodium alginate carragennan chitosan and two galactomannans were characterized in terms of Zp and Z-average as a function of polysaccharides and NaCl concentrations and pH The most relevant effects of these factors on Zp and on Z-average were analysed using a 23 full factorial design With a few exceptions the effect of independent variables on Zp and Z-average values is

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Novel thermo

Novel thermo-responsive polymers composed of sodium alginate and poly(N-isopropylacrylamide) Oana-Nicoleta Ciocoiu 1* repeating unit brings one carboxylic acid unit it is accessible to chemical modifications which could enrich it with new properties and uses in new applications Grafting of NaAl with PNIPAM chains in dimethylformamide was proposed by Kim at All18 for the preparation of

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