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chitosan-g-poly acrylamide function

  • Fabrication of chitosan-g-poly(acrylamide)/CuS ...

    2016-7-1 · Synthesis of chitosan-g-poly(acrylamide)/CuS (CPA/CS) nanocomposite. CPA/CS nanocomposite was synthesized by co-precipitation method in a microwave reactor. 2 g of chitosan dissolved in 1% aqueous acetic acid (100 mL) was added dropwise with constant stirring into 50 mL of 0.1 M acrylamide solution. The CuS nanoparticles prepared above were dispersed into the reaction mixture.

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  • Preparation of a novel chitosan-g-poly(acrylamide)/Zn ...

    2016-3-1 · Synthesis of chitosan-g-poly(acrylamide)/Zn (CPA-Zn) nanocomposite. CPA-Zn nanocomposite was synthesized in a microwave reactor. In a typical procedure, 2 g chitosan dissolved in 100 mL 1% aqueous acetic acid was added drop wise into 50 mL of 0.1 M acrylamide solution with constant stirring. Then Zn nanoparticles prepared above were added into ...

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  • Tough and Self-Healing Chitosan/Poly(acrylamide- co ...

    2017-2-1 · In this work, quaternary ammonium chitosan-g-poly(acrylic acid-co-acrylamide) superabsorbent hydrogels were prepared successfully with preferable water absorbency, good antibacterial activity and some mechanical property. The structure was assured by FTIR and SEM, which indicated porous structure clearly.

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  • Preparation and properties of quaternary ammonium

    Superabsorbent composites based on chitosan‐g‐poly(acrylamide) and montorillonite (CTS‐g‐PAAm/MMT) were synthesized through in situ radical polymerization by grafting of crosslinked acrylamide onto chitosan backbone in presence of MMT at different contents. The formation of the grafted network was confirmed by attenuated total reflectance Fourier transform infrared spectroscopy (ATR ...

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  • Preparation of

    2015-5-29 · This investigation reports the synthesis of magnetic nanocomposite hydrogels based on carboxymethyl chitosan-g-poly(acrylamide) (CMC-g-PAAm). The magnetic nanoparticles were prepared via in situ co-precipitation of iron salts in the presence of laponite RD nanoclay. Different contents of magnetic nanoclay were utilized to prepare magnetic CMC-g-PAAm nanocomposites.

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  • Synthesis of magnetic carboxymethyl chitosan- g

    2017-5-1 · The mechanical strength of N-succinyl chitosan-g-poly (acrylamide-co-acrylic acid) hydrogels was evaluated using oscillatory MCR 301 rheometer (Paar-Physica) at 25 °C with 25 mm in diameter parallel plate geometry. The strain amplitude test was conducted in strain range of 0.01–20% at a constant angular frequency of 10 rad/s.

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  • Physico-chemical characterization of pH-sensitive N ...

    2016-12-6 · Quaternary ammonium chitosan-g-poly(acrylic acid-co-acrylamide) superabsorbent hydrogels were successfully synthesized from acrylic acid (AA), acrylamide (AM) and quaternary ammonium chitosan with high substitution degree. They were prepared ...

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  • Synthesis, characterization and absorption study of ...

    2020-4-9 · In recent years, a couple of researchers have studied the synthesize of the chitosan-g-poly(acrylamide-co-itaconic acid) such as bajpai et. al ; they have investigated the reactions at ambient atmosphere which resulted in low conversion rate due to the reaction of …

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  • Chitosan-based hydrogels: From preparation to

    2018-9-15 · These reactions, so-called Schiff base linkages, are reversible which endows the hydrogel self-healing properties. F. Ding and colleagues developed an acrylamide-modified chitosan and oxidized alginate-based hydrogels with recoverable self-healing and mechanical properties.

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  • Preparation of

    2014-5-5 · Superabsorbent composites based on chitosan‐g‐poly(acrylamide) and montorillonite (CTS‐g‐PAAm/MMT) were synthesized through in situ radical polymerization by grafting of crosslinked acrylamide onto chitosan backbone in presence of MMT at different contents. The formation of the grafted network was confirmed by attenuated total reflectance Fourier transform infrared spectroscopy (ATR ...

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  • Preparation of a novel chitosan-g-poly(acrylamide)/Zn ...

    Chitosan-g-poly(acrylamide)/Zn (CPA-Zn) nanocomposite was synthesized using simple method in the presence of microwave radiations. CPA-Zn nanocomposite was characterized by various analytical techniques. CPA-Zn nanocomposite was used for controlled drug delivery of ofloxacin. The maximum drug release was 75% which was observed in acidic medium.

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  • Preparation of a novel chitosan-g-poly(acrylamide)/Zn ...

    Chitosan-g-poly(acrylamide)/Zn (CPA-Zn) nanocomposite was synthesized using simple method in the presence of microwave radiations. CPA-Zn nanocomposite was characterized by various analytical techniques. CPA-Zn nanocomposite was used for controlled drug delivery of ofloxacin. The maximum drug release was 75% which was observed in acidic medium.

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  • Interpenetrated Chitosan-Poly(Acrylic Acid-Co

    2013-12-24 · groups in chitosan allow the preparation of chitosan de-rivatives with improved properties under relatively mild conditions [23]. Mahdavinia et al. synthesized poly (ac- rylic acid-co-acrylamide) grafted chitosan, and studied the effect of the buffer solution, ionic strength and cro- ss-linker concentration on the swelling properties of

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  • Interpenetrated Chitosan-Poly(Acrylic Acid-Co

    2014-12-19 · Chitosan-g-poly (acrylicacid-co-acrylamide) proved to be an effective adsorbent for the removal of different heavy metal ions from aqueous solution. In present research work natural bio polymer “Chitosan” was grafted onto Acrylic acid and Acrylamide and adsorption of some heavy metal studied by batch method. Synthesis of grafted chitosan ...

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  • Adsorption Studies for the Removal Heavy Metal by

    2019-6-18 · Hydrogel polymers were prepared via graft polymerization of acrylamide (AAm) onto chitosan (CTS) backbone in the presence of methylene bisacrylamide (MBA) as cross-linker and ammonium persulfate (APS) as an initiator. Optimizing the crosslinking graft reaction of AAm onto CTS was studied by varying the concentration of CTS and MBA cross-linker and discussing the effect of these …

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  • Synthesis of Poly(Acrylamide-Graft-Chitosan)

    Poly(acrylamide-chitosan) Hydrogels: Interaction with SurfactantsThis article may be used for research, teaching, and private study purposes. Any substantial or systematic reproduction, redistribution, reselling, loan, sub-licensing, systematic supply, or distribution in any form to anyone is expressly forbidden.The publisher does not give any warranty express or implied or make any ...

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  • (PDF) Poly(acrylamide-chitosan) Hydrogels: Interaction ...

    2010-7-22 · A comb-like dual hydrophilic graft chitosan copolymer, chitosan-graft-poly(N-isopropylacrylamide) (CS-g-PNIPAM), was synthesized by means of atom transfer radical polymerization (ATRP) and click chemistry. The thermo-responsive association behavior of the copolymer in dilute aqueous solutions has been investigated by laser light scattering (LLS), zeta potential, and …

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  • Thermo-Responsive Association of Chitosan-graft

    2012-9-15 · Poly(acrylamide) (PAAm) is a widely used polymer due to its affinity for proteins and other biomolecules, the presence of amide groups making this polymer susceptible for further reactions , , . By their accessibility, biocompatibility, and biodegradability, PAAm hydrogels constitute one of the most investigated matrix in the preparation of ...

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  • Preparation of

    2014-5-5 · Superabsorbent composites based on chitosan‐g‐poly(acrylamide) and montorillonite (CTS‐g‐PAAm/MMT) were synthesized through in situ radical polymerization by grafting of crosslinked acrylamide onto chitosan backbone in presence of MMT at different contents. The formation of the grafted network was confirmed by attenuated total reflectance Fourier transform infrared spectroscopy (ATR ...

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  • (PDF) UV-induced synthesis of chitosan-g

    Removal of Mercury (II) from Aqueous Solution using Chitosan- graft -Polyacrylamide Semi-IPN Hydrogels. By Mustafa Gazi. Water retention and dye adsorption behavior of Gg-cl-poly(acrylic acid-aniline) based conductive hydrogels. By Balbir Kaith. Pullulan based porous semi-IPN hydrogel: Synthesis, characterization and its application in the ...

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  • Synthesis of Poly(Acrylamide-Graft-Chitosan)

    Preparation, Swelling and Antibacterial Behaviors of N-Succinyl Chitosan-g-Poly(Acrylic Acid-co-Acrylamide) Superabsorbent Hydrogels 来自 KNS 喜欢 0 阅读量: 15 作者: 何广华,KE Wanwan,LIU Liang,LI Ya,郑化,YIN Yihua,YI Ying ...

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  • Synthesis of magnetic carboxymethyl chitosan-g-poly ...

    2019-6-18 · Hydrogel polymers were prepared via graft polymerization of acrylamide (AAm) onto chitosan (CTS) backbone in the presence of methylene bisacrylamide (MBA) as cross-linker and ammonium persulfate (APS) as an initiator. Optimizing the crosslinking graft reaction of AAm onto CTS was studied by varying the concentration of CTS and MBA cross-linker and discussing the effect of these …

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  • Pourjavadi, A. and Mahdavinia, G.R. (2006)

    hydrogels based on carboxymethyl chitosan-g-poly(acrylamide) (CMC-g-PAAm). The magnetic nanoparticles were prepared via in situ co-precipitation of iron salts in the presence of laponite RD nanoclay. Different contents of magnetic nanoclay were utilized to prepare magnetic CMC-g-PAAm nanocomposites. The structure of

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  • Thermo-Responsive Association of Chitosan-graft

    Pourjavadi, A. and Mahdavinia, G.R. (2006) Superabsorbency, pH-Sensitivity and Swelling Kinetics of Partially Hydrolyzed Chitosan-g-poly(Acrylamide) Hydrogels. Turkish Journal of Chemistry, 30, 595-608.

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  • Cellular compatibility of copolymer hydrogels based

    Preparation, Swelling and Antibacterial Behaviors of N-Succinyl Chitosan-g-Poly(Acrylic Acid-co-Acrylamide) Superabsorbent Hydrogels 何广华 KE Wanwan LIU Liang LI Ya 郑化 YIN Yihua YI Ying

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  • Superporous hydrogels containing poly(acrylic acid-co ...

    2010-7-22 · A comb-like dual hydrophilic graft chitosan copolymer, chitosan-graft-poly(N-isopropylacrylamide) (CS-g-PNIPAM), was synthesized by means of atom transfer radical polymerization (ATRP) and click chemistry. The thermo-responsive association behavior of the copolymer in dilute aqueous solutions has been investigated by laser light scattering (LLS), zeta potential, and …

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  • Fabrication of Interpenetrating Networks of Poly (vinyl ...

    2012-10-31 · (2012). Fabrication of Interpenetrating Networks of Poly (vinyl alcohol-g-acrylamide) and Chitosan-g-polyacrylamide Chains and Evaluation of Water Sorption, Blood Compatibility and Cytotoxicity Behaviors. Polymer-Plastics Technology and Engineering: Vol. 51, No. 14, pp. 1443-1450.

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  • Poly(vinyl alcohol)/chitosan/honey/clay responsive ...

    2018-2-10 · Jayashree Nath, Anupam Chowdhury, Ilias Ali, Swapan Kumar Dolui, Development of a gelatin‐g‐poly(acrylic acid‐co‐acrylamide)–montmorillonite superabsorbent hydrogels for in vitro controlled release of vitamin B12, Journal of Applied Polymer Science, 10.1002/app.47596, 136, 22, (2019).

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  • Hydrogels Based on Chitosan and Chitosan

    2021-6-20 · Acrylamide is a chemical that can form in some foods during high-temperature cooking processes, such as frying, roasting, and baking. Acrylamide in food …

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  • Acrylamide | FDA

    2020-11-16 · Ana V. Torres-Figueroa, Cinthia J. Pérez-Martínez, Teresa del Castillo-Castro, Enrique Bolado-Martínez, María A. G. Corella-Madueño, Alejandro M. García-Alegría, Tania E. Lara-Ceniceros, Lorena Armenta-Villegas, ' Composite Hydrogel of Poly(acrylamide) and Starch as Potential System for Controlled Release of Amoxicillin and Inhibition of Bacterial Growth ', Journal of Chemistry,. vol ...

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  • Composite Hydrogel of Poly(acrylamide) and Starch as ...

    2018-9-7 · Acrylamide at a dose of 20 mg/kg/day stimulated the degeneration of peripheral nerves and the spinal cord of rats, although no obvious effects were found at doses less than 0.2 mg/kg/day. 152 ...

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  • Polyacrylamide degradation and its implications in ...

    In this work, cellulose nanocrystals (CNCs) obtained by the acid hydrolysis of waste bamboo powder were used to synthesize cellulose nanocrystal-g-poly(acrylic acid-co-acrylamide) (CNC-g-P(AA/AM)) aerogels via graft copolymerization followed by freeze-drying. The structure and morphology of the resulting aerogels were characterized by Fourier transform infrared spectroscopy (FTIR) and scanning ...

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  • Fabrication of Cellulose Nanocrystal-g-Poly(Acrylic

    2019-5-26 · The influence of polymer concentration and temperature on the rheological behavior of chitosan solution was studied. The threshold concentrations for the different viscometric regimes were determined and the different power laws exponents were calculated and compared with those predicted from models. Different observations and the high values of these exponents within the high …

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  • Viscosity of Semiflexible Chitosan Solutions: Influence

    polyacrylamide, an acrylic resin that has the unique property of being soluble in water. It is employed in the treatment of industrial and municipal wastewater. Polyacrylamides are produced by the polymerization of acrylamide (C3H5NO), a compound obtained by the hydration of acrylonitrile.

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  • Direct-write, highly aligned chitosan-poly(ethylene

    2013-2-22 · Desai K, Kit K: Effect of spinning temperature and blend ratios on electrospun chitosan/poly(acrylamide) blends fibers. Polymer 2008, 49: 4046–4050. 10.1016/j.polymer.2008.07.012. Article Google Scholar 11.

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  • Composite Hydrogel of Poly(acrylamide) and Starch as ...

    2020-11-16 · Ana V. Torres-Figueroa, Cinthia J. Pérez-Martínez, Teresa del Castillo-Castro, Enrique Bolado-Martínez, María A. G. Corella-Madueño, Alejandro M. García-Alegría, Tania E. Lara-Ceniceros, Lorena Armenta-Villegas, ' Composite Hydrogel of Poly(acrylamide) and Starch as Potential System for Controlled Release of Amoxicillin and Inhibition of Bacterial Growth ', Journal of Chemistry,. vol ...

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  • Chitin/Chitosan: Versatile Ecological, Industrial, and ...

    2019-3-7 · These materials include chitosan gelatin and chitosan/poly(L-lysine) polyelectrolyte-based scaffolds (Martin-Lopez et al. 2012), chitosan-gold nanocomposites (Lin et al. 2008), chitosan/polylactic acid films (Xie et al. 2008), chitosan/poly(3-hydroxybutyrate-co-3-hydroxyvalerate) nanofibers (Biazar and Heidari Keshel 2014), porous chitosan ...

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  • Viscosity of Semiflexible Chitosan Solutions: Influence

    2019-5-26 · The influence of polymer concentration and temperature on the rheological behavior of chitosan solution was studied. The threshold concentrations for the different viscometric regimes were determined and the different power laws exponents were calculated and compared with those predicted from models. Different observations and the high values of these exponents within the high …

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  • Chitosan 75-85 deacetylated | Sigma-Aldrich

    Deacetylated chitin, Poly (D-glucosamine) CAS Number: 9012-76-4. Product Number. Product Description. SDS. C3646. from shrimp shells, ≥75% (deacetylated)

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  • Blend Hydrogel Microspheres of Carboxymethyl

    2011-5-19 · An in situ gel-forming system composed of rutin- and tyramine-conjugated chitosan derivatives, horseradish peroxidase (HRP), and hydrogen peroxide (H2O2) was prepared and applied to dermal wound repair. Rutin was employed to enhance production and accumulation of extracellular matrix in the healing process. In vitro study demonstrates that released rutin significantly enhanced cell ...

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  • In Situ Forming and Rutin-Releasing Chitosan

    2021-3-12 · A novel functional superabsorbent composite with slow-release fertilizer properties from acrylic acid (AA), acrylamide (AM), and sodium humate (SH), PAA−AM/SH, was prepared by aqueous solution polymerization, using N,N‘-methylenebisacrylamide (MBA) as a cross-linker and ammonium persulfate (APS) as an initiator. In this article, the effects of the SH content on water absorbency and ...

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  • Preparation, Swelling Behaviors, and Slow-Release ...

    Toll-Free : 1.866.422.9842 Telephone : +1.514.421.5517 +1.514.421.5506 Fax : +1.514.421.5518 Emergency : +1.514.887.5517

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  • Chitosan superporous hydrogel composite-based

    Acrylic acid (AA) and Acrylamide (AM) were chosen as the base monomers for their high water affinity and fast copolymerization velocity, while Chitosan was selected as the second polymer component for its biocompatibility. A floating drug delivery system, which was less dense than gastric juice was described.

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  • Chitin/Chitosan: Versatile Ecological, Industrial, and ...

    2019-3-7 · These materials include chitosan gelatin and chitosan/poly(L-lysine) polyelectrolyte-based scaffolds (Martin-Lopez et al. 2012), chitosan-gold nanocomposites (Lin et al. 2008), chitosan/polylactic acid films (Xie et al. 2008), chitosan/poly(3-hydroxybutyrate-co-3-hydroxyvalerate) nanofibers (Biazar and Heidari Keshel 2014), porous chitosan ...

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  • Progress, challenges, and opportunities in enhancing

    2018-6-29 · For the synthesis of SPHC of poly (acrylamide-co-acrylic acid), the following substances were added subsequently into a test tube at 25°C: acrylamide 50%; acrylic acid 50%; methylenebisacrylamide 2.5%; span 80 10%; ammo­nium persulphate 20%; tetramethylethylenediamine 20%; chitosan aqueous solution 6%, and 200 mg of sodium bicarbonate as ...

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  • Preparation and characterization of chitosan-based ...

    2017-2-12 · A chitosan solution (2%) was prepared by dissolving 10 g chitosan powder into 500 mL of 10% glacial acetic acid to get the pH of the solution in a range of 4-5. The solution was stirred for 40 hours at RT until a gold colour was obtained. 2.2.2. Preparation of Chitosan-Acrylamide Encapsulated Urea

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  • Silicone Doped Chitosan-Acrylamide Coencapsulated

    2013-7-2 · E?ect of reaction temperature on the apparent viscosity of grafted polyblends AMPN, 0.125%; formic acid, 0.4 g/g chitosan g; M/L ratio 1:25, MAA, 0.55 g/g chitosan, time, 2 h. of grafted/poly(MAA) growing chains as well as homopoly(MAA) chain radicals by

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  • In Situ Forming and Rutin-Releasing Chitosan

    2011-5-19 · An in situ gel-forming system composed of rutin- and tyramine-conjugated chitosan derivatives, horseradish peroxidase (HRP), and hydrogen peroxide (H2O2) was prepared and applied to dermal wound repair. Rutin was employed to enhance production and accumulation of extracellular matrix in the healing process. In vitro study demonstrates that released rutin significantly enhanced cell ...

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  • Application status and technical analysis of chitosan ...

    2020-9-16 · Chitosan has wide applications in the field of medical dressings due to its good biomedical properties. This review provides the application status and technical analysis of chitosan medical dressings. First, we introduce the source and chemical structure of chitosan. Then, we investigate the mechanism of chitosan 2020 Reviews in RSC Advances

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  • Electron Beam Synthesis and Characterization of

    The purpose of the paper is to present the synthesis and characterization of hydrogels prepared by free-radical copolymerization of acrylamide and acrylic acid in aqueous solutions using potassium persulfate as initiator and trimethylolpropane trimethacrylate as cross-linker, via the radiation technique. The samples were subjected to electron beam treatment in the dose range of 2 to 4  ...

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  • Polyacrylamide degradation and its implications in ...

    2018-9-7 · Acrylamide at a dose of 20 mg/kg/day stimulated the degeneration of peripheral nerves and the spinal cord of rats, although no obvious effects were found at doses less than 0.2 mg/kg/day. 152 ...

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  • NOVEL SUPERABSORBENT HYDROGEL COMPOSITE

    Poly(acrylamide-co-acrylate) ... reports a decreasing in the water uptake of chitosan-graft-PAN hydrogels as function of the cation charge. 32 This effect was attributed to the complexation ability of those multivalent cations with negatively charged groups of the copolymer based on chitosan, acrylic acid and acrylamide. Here, salts contained ...

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  • Chitosan superporous hydrogel composite-based

    Acrylic acid (AA) and Acrylamide (AM) were chosen as the base monomers for their high water affinity and fast copolymerization velocity, while Chitosan was selected as the second polymer component for its biocompatibility. A floating drug delivery system, which was less dense than gastric juice was described.

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  • Preparation and characterization of chitosan-based ...

    2018-6-29 · For the synthesis of SPHC of poly (acrylamide-co-acrylic acid), the following substances were added subsequently into a test tube at 25°C: acrylamide 50%; acrylic acid 50%; methylenebisacrylamide 2.5%; span 80 10%; ammo­nium persulphate 20%; tetramethylethylenediamine 20%; chitosan aqueous solution 6%, and 200 mg of sodium bicarbonate as ...

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  • Progress, challenges, and opportunities in enhancing

    2014-12-28 · Cassia Grandis Seed Gum-graft-poly(acrylamide)-silica Hybrid: An Excellent Cadmium (II) Adsorbent Vandana Singh 1*, Stuti Tiwari 1, Sadanand Pandey 1, Preeti 1, Rashmi Sanghi 2 . 1 Department of Chemistry, University of Allahabad, Allahabad 211 002, India.

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  • Cassia Grandis Seed Gum-graft-poly(acrylamide)-silica ...

    Summary Conventional EOR polymers are acrylamide-based copolymers. Their viscosity in aqueous solution depends on various physicochemical parameters such as: monomer composition, concentration, average molecular weight, polydispersity, salinity level and ionic composition, temperature… Moreover, solutions are non-Newtonian, they exhibit a Low shear Newtonian plateau viscosity at low shear ...

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  • Universal Viscosifying Behavior of Acrylamide-based ...

    2008-1-1 · In this study, a novel approach to provide thermally sensitive neutral solutions based on chitosan/carboxymethyl cellulose (Ch/CMC) combinations is described. The potential of thermosensitive Ch/CMC as a biomaterial is evaluated for the culture of chondrocytes, with the goal of using the Ch/CMC polymer as an injectable matrix/cell therapeutic.

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  • Novel Thermally Sensitive pH-dependent Chitosan ...

    2019-5-2 · Chitosan, generally derived from natural chitin after deacetylation with alkaline treatments is primarily composed of glucosamine, 2‐amino‐2‐deoxy‐D‐glucose 47, 48 and can be produced from marine crustacean shells. 49 Chitosan is used in various fields, such as water treatment, 50-53 drug delivery, 54 and tissue engineering. 55 Being ...

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  • Chitosan biopolymer‐derived self‐powered

    2018-11-23 · Materials. Ammonium persulfate (APS, MW = 228.20), N-isopropylacrylamide (NIPAAm, MW = 113.16), N,N′-methylene-bis-acrylamide (MBA, MW = 154.17), tetramethylenediamine (TEMED, MW = 116.20, d = 0.775 g/ml);triethylamine (MW = 101.19, d = 0.796 g/mL) acryloyl chloride (MW = 90.51, d = 1.114 g/mL) were purchased from Sigma Aldrich. N-methyl pyrrolidone (NMP) was purchased from …

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  • Sliding Crosslinked Thermoresponsive Materials ...

    2020-8-19 · The enzyme-linked immunosorbent assay (ELISA), is the most widely used and reliable clinical routine method for the detection of important protein markers in healthcare. Improving ELISAs is crucial for detecting biomolecules relates to health disorders and facilitating diagnosis at the early diseases stages. Several methods have been developed to improve the ELISA sensitivity through ...

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  • Acrylamide | FDA

    2021-6-20 · Acrylamide is a chemical that can form in some foods during high-temperature cooking processes, such as frying, roasting, and baking. Acrylamide in food …

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  • Preparation and characterization of chitosan-based ...

    2018-6-29 · For the synthesis of SPHC of poly (acrylamide-co-acrylic acid), the following substances were added subsequently into a test tube at 25°C: acrylamide 50%; acrylic acid 50%; methylenebisacrylamide 2.5%; span 80 10%; ammo­nium persulphate 20%; tetramethylethylenediamine 20%; chitosan aqueous solution 6%, and 200 mg of sodium bicarbonate as ...

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  • Poly(ethylene glycol) and Cyclodextrin-Grafted

    2014-4-2 · American Journal of Polymer Science 2014, 4(2): 25-31 DOI: 10.5923/j.ajps.20140402.01 Cross-linking in Hydrogels - A Review Jaya Maitra*, Vivek Kumar Shukla Gautam Buddha University, Greater Noida, Gautam Budh Nagar-201312 (U.P), India

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  • Cross-linking in Hydrogels - A Review

    2020-9-16 · Chitosan has wide applications in the field of medical dressings due to its good biomedical properties. This review provides the application status and technical analysis of chitosan medical dressings. First, we introduce the source and chemical structure of chitosan. Then, we investigate the mechanism of chitosan 2020 Reviews in RSC Advances

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  • Application status and technical analysis of chitosan ...

    Purpose: This study aimed to develop an Arg-Gly-Asp (RGD) peptide-labeled chitosan nanoparticle (RGD-CH-NP) as a novel tumor targeted delivery system for short interfering RNA (siRNA). Experimental Design: RGD peptide conjugated with chitosan by thiolation reaction was confirmed by proton-NMR (H-NMR). Binding of RGD-CH-NP with ανβ3 integrin was examined by flow cytometry and fluorescence ...

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  • Targeted Gene Silencing Using RGD-Labeled Chitosan ...

    2008-1-1 · In this study, a novel approach to provide thermally sensitive neutral solutions based on chitosan/carboxymethyl cellulose (Ch/CMC) combinations is described. The potential of thermosensitive Ch/CMC as a biomaterial is evaluated for the culture of chondrocytes, with the goal of using the Ch/CMC polymer as an injectable matrix/cell therapeutic.

    Get Price
  • Novel Thermally Sensitive pH-dependent Chitosan ...

    polyacrylamide, an acrylic resin that has the unique property of being soluble in water. It is employed in the treatment of industrial and municipal wastewater. Polyacrylamides are produced by the polymerization of acrylamide (C3H5NO), a compound obtained by the hydration of acrylonitrile.

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  • polyacrylamide | chemical compound | Britannica

    2010-8-1 · Free Online Library: Preparation and characterization of swellable polymer-based superporous hydrogel composite of poly (acrylamide-co-acrylic acid). by 'Trends in Biomaterials and Artificial Organs'; Health, general Drug delivery systems Chemical properties …

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  • Preparation and characterization of swellable polymer ...

    The Sci-Hub project supports Open Access movement in science. Research should be published in open access, i.e. be free to read. The Open Access is a new and advanced form of scientific communication, which is going to replace outdated subscription models.

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  • Cross-linking in Hydrogels - A Review

    2014-4-2 · American Journal of Polymer Science 2014, 4(2): 25-31 DOI: 10.5923/j.ajps.20140402.01 Cross-linking in Hydrogels - A Review Jaya Maitra*, Vivek Kumar Shukla Gautam Buddha University, Greater Noida, Gautam Budh Nagar-201312 (U.P), India

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  • Acrylamide and Cancer Risk - National Cancer Institute

    2021-7-6 · Acrylamide is a chemical used primarily to make substances called polyacrylamide and acrylamide copolymers. Polyacrylamide and acrylamide copolymers are used in many industrial processes, such as the production of paper, dyes, and plastics, and in the treatment of drinking water and wastewater, including sewage.

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  • Targeted Gene Silencing Using RGD-Labeled Chitosan ...

    Purpose: This study aimed to develop an Arg-Gly-Asp (RGD) peptide-labeled chitosan nanoparticle (RGD-CH-NP) as a novel tumor targeted delivery system for short interfering RNA (siRNA). Experimental Design: RGD peptide conjugated with chitosan by thiolation reaction was confirmed by proton-NMR (H-NMR). Binding of RGD-CH-NP with ανβ3 integrin was examined by flow cytometry and fluorescence ...

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  • Chitosan nanoparticles having higher degree of

    2018-2-6 · Seeds of pearl millet cultivars AIMP 92901-P3 treated with distilled water and 7042 S treated with chitosan (@ 3 g ... J Appl Poly Sci. 63 ... and an assay applicable to acrylamide gels. ...

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  • Frontiers | Design and Synthesis of Chitosan—Gelatin ...

    2020-7-14 · The development of 3D printable hydrogels based on the crosslinking between chitosan and gelatin is proposed. Chitosan and gelatin were both functionalized with methyl furan groups. Chemical modification was performed by reductive amination with methyl furfural involving the lysine residues of gelatin and the amino groups of chitosan to generate hydrogels with tailored properties.

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  • polyacrylamide | chemical compound | Britannica

    polyacrylamide, an acrylic resin that has the unique property of being soluble in water. It is employed in the treatment of industrial and municipal wastewater. Polyacrylamides are produced by the polymerization of acrylamide (C3H5NO), a compound obtained by the hydration of acrylonitrile.

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  • Polyvinyl alcohol | CH2CHOH - PubChem

    2015-3-31 · Chitosan was supplied by Zhejiang Aoxing Biotechnology Co.,solutionLtd., China,with a deacetylation degree of 95% and molecular weight of 1.2×105. G-105 type Na-MMT was supplied by Nanocor Co., USA. PdCl2 was supplied by Zhejiang Metallurgical Research Institute Co., Ltd.,Finally,China. All

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  • Supporting Information reactions microspheres as ...

    Here, we designed paper sheets coated with chitosan, bacterial cellulose (nanofibers), and ZnO with boosted antibacterial and mechanical activity. We investigated the compositions, with ZnO exhibiting two different sizes/shapes: (1) rods and (2) irregular sphere-like particles. The proposed processing of bacterial cellulose resulted in the formation of nanofibers.

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  • Fabrication of Paper Sheets Coatings Based on

    Academia.edu is a place to share and follow research. Browse By Title: 'Chitosan-Iron Oxide Nano-composite Platform for Mismatch-Discriminating DNA Hybridization for detection of Neisseria gonorrhoeae causing Sexually Transmitted Disease'

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  • Studies on removal of Cr(VI) and Cu(II) ions using ...

    2019-7-9 · The adsorption kinetics of chitosan-g-polyacrylonitrile was found to ... The solubilisation occurs by the protonation of the –NH 2 function on the C-2 position of the D-glucosamine repeat unit, where by the polysaccharide is converted to a ... Graft copolymerization of acrylamide on chitosan using ammonium per sulfate as an initiator, was ...

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  • Silicone Doped Chitosan-Acrylamide Coencapsulated

    2017-2-12 · A chitosan solution (2%) was prepared by dissolving 10 g chitosan powder into 500 mL of 10% glacial acetic acid to get the pH of the solution in a range of 4-5. The solution was stirred for 40 hours at RT until a gold colour was obtained. 2.2.2. Preparation of Chitosan-Acrylamide Encapsulated Urea

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  • Preparation of Carboxymethyl Cellulose-g-

    2019-5-25 · Cellular compatibility of copolymer hydrogels based on site-selectively-modified chitosan with poly(N-isopropyl acrylamide). Journal of Applied Polymer Science 2011 , 120 (1) , 1-12.

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  • Chemospecific manipulations of a rigid polysaccharide ...

    2021-6-20 · Acrylamide is a chemical that can form in some foods during high-temperature cooking processes, such as frying, roasting, and baking. Acrylamide in food …

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  • Acrylamide | FDA

    2013-7-2 · E?ect of reaction temperature on the apparent viscosity of grafted polyblends AMPN, 0.125%; formic acid, 0.4 g/g chitosan g; M/L ratio 1:25, MAA, 0.55 g/g chitosan, time, 2 h. of grafted/poly(MAA) growing chains as well as homopoly(MAA) chain radicals by

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  • Synthesis and Characterization of Lyophilized Chitosan ...

    Poly-N-Isopropylacrylamide/acrylic Acid Copolymers for the. Sep 17, 2009· We have developed a reliable procedure for the deposition of (nanostructured) copolymer nanolayers onto mica surfaces comprising the following steps: A) spincasting of MeOH/H 2 O-dispersions of poly-N-isopropyl-acrylamide-co-acrylic acid(-co-perfluoro-octyl-acrylate) copolymers, which are above their respective lower ...

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  • Application status and technical analysis of chitosan ...

    polyacrylamide, an acrylic resin that has the unique property of being soluble in water. It is employed in the treatment of industrial and municipal wastewater. Polyacrylamides are produced by the polymerization of acrylamide (C3H5NO), a compound obtained by the hydration of acrylonitrile.

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