Biodegradable polyaniline/dextrin conductive nanocomposites: synthesis, characterization, and study of antioxidant activity and sorption of heavy metal ions

Zare‬, Ehsan Nazarzadeh; Lakouraj, Moslem Mansour

doi:10.1007/s13726-014-0221-3

Cited by 83 publications

(35 citation statements)

References 35 publications

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“…[ 362 ] Some of the drawbacks of using biopolymers compared to the conventional nonbiodegradable nanomaterials include poor mechanical (e.g., low compressive strength) and barrier properties (e.g., high‐water permeability), especially when the nanocomposites are used as antibacterial packaging materials. [ 363–365 ] There is also concern that a high concentration of the nanomaterial will influence the property of biopolymer thus the antimicrobial properties. For example, increase in the concentration of metal ions augments the crystallinity of chitosan and reduces the zone of bacteria inhibition.…”

Section: Perspectivesmentioning

confidence: 99%

Metal‐Based Nanomaterials in Biomedical Applications: Antimicrobial Activity and Cytotoxicity Aspects

Makvandi

Wang

Zare

et al. 2020

Adv Funct Materials

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518

368

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Microbial colonization on material surfaces is ubiquitous. Biofilms derived from surface-colonized microbes pose serious problems to the society from both an economical perspective and a health concern. Incorporation of antimicrobial nanocompounds within or on the surface of materials, or by coatings, to prevent microbial adhesion or kill the microorganisms after their attachment to biofilms, represents an important strategy in an increasingly challenging field. Over the last decade, many studies have been devoted to preparing meta-based nanomaterials that possess antibacterial, antiviral, and antifungal activities to combat pathogen-related diseases. Herein, an overview on the state-of-the-art antimicrobial nanosized metal-based compounds is provided, including metal and metal oxide nanoparticles as well as transition metal nanosheets. The antimicrobial mechanism of these nanostructures and their biomedical applications such as catheters, implants, medical delivery systems, tissue engineering, and dentistry are discussed. Their properties as well as potential caveats such as cytotoxicity, diminishing efficacy, and induction of antimicrobial resistance of materials incorporating these nanostructures are reviewed to provide a backdrop for future research.

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Section: Perspectivesmentioning

confidence: 99%

Metal‐Based Nanomaterials in Biomedical Applications: Antimicrobial Activity and Cytotoxicity Aspects

Makvandi

Wang

Zare

et al. 2020

Adv Funct Materials

Self Cite

518

368

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“…Therefore, researchers aim to develop novel composite containing natural and high‐performance polymers such as starch, chitosan, dextrin etc. for various applications . Examples of such biopolymer that L‐ASNase has already been incorporated in are dextran, chitosan, and poly ( d , l ‐lactide‐ co ‐glycolide) .…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of PMMA composites activated with starch for immobilization of L‐asparaginase

Ulu

Köytepe

Ateş

2016

J of Applied Polymer Sci

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Poly (methyl methacrylate) (PMMA)-starch composites were prepared by emulsion polymerization technique for L-asparaginase (L-ASNase) immobilization as highly activated support. The hydroxide groups on the prepared composites offer a very simple, mild and firm combination for enzyme immobilization. The pure PMMA and PMMA-starch composites were characterized as structural, thermal and morphological. PMMA-starch composites were found to have better thermal stability and more hydrophilic character than pure PMMA. L-ASNase was immobilized onto PMMA-starch composites contained the different ratio of starch (1, 3, 5, and 10 wt %). Immobilized L-ASNase showed better performance as compared to the native enzyme in terms of thermal stability and pH. K m value of immobilized enzyme decreased approximately eightfold compared with the native enzyme. In addition to, immobilized L-ASNase was found to retain 60% of activity after 1-month storage period at 4 8C. Therefore, PMMA-starch composites can be provided more advantageous in terms of enzymatic affinity, thermal, pH and storage stability as L-ASNase immobilization matrix.

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“…12 In addition, in our recent works, the removal of Pb(II), Cu(II), and Cd(II) by using PANI and PPy nanocomposites has been investigated. 13,14 On the other hand, the use of magnetic nanoparticles in treatment of wastewater is promising, due to high efficiency and costeffectiveness. 15,16 Magnetic adsorbents are usually composed of the magnetic cores to ensure a strong magnetic response and a polymeric shell to supply favorable functional groups for various applications.…”

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confidence: 99%

Effective Adsorption of Heavy Metal Cations by Superparamagnetic Poly(aniline‐co‐m‐phenylenediamine)@Fe₃O₄ Nanocomposite

2015

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ABSTRACT:The development of simple methods for the removal of heavy metal cations from water samples is a relevant field of research. For this purpose, poly(aniline-co-m-phenylenediamine) (PAMpDA) was synthesized via radical oxidation polymerization of aniline with m-phenylenediamine. Then, superparamagnetic poly(aniline-co-m-phenylenediamine)@Fe 3 O 4 (PAMpDA@Fe 3 O 4 ) nanocomposite was fabricated from PAMpDA, Fe(II), and Fe(III) salts via the in situ coprecipitation technique. The products were characterized in terms of chemical structure, morphology, thermal and magnetic properties by Fourier transform infrared, X-ray diffraction, scanning electron microscopy, thermal gravimetric analysis, and vibrating sample magnetometer, respectively. The capability of PAMpDA and its nanocomposite for the removal of Pb(II), Cd(II), and Co(II) ions was investigated at various contact times, absorbent dosages, pH, and initial concentrations. The experimental data for Co(II) cation with the highest sorption were analyzed by two isotherms and kinetic equations. In addition, the electrical conductivity of PAMpDA and PAMpDA@Fe 3 O 4 nanocomposite was examined after sorption of the heavy metal ions. C

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Biodegradable polyaniline/dextrin conductive nanocomposites: synthesis, characterization, and study of antioxidant activity and sorption of heavy metal ions

Cited by 83 publications

References 35 publications

Metal‐Based Nanomaterials in Biomedical Applications: Antimicrobial Activity and Cytotoxicity Aspects

Metal‐Based Nanomaterials in Biomedical Applications: Antimicrobial Activity and Cytotoxicity Aspects

Synthesis and characterization of PMMA composites activated with starch for immobilization of L‐asparaginase

Effective Adsorption of Heavy Metal Cations by Superparamagnetic Poly(aniline‐co‐m‐phenylenediamine)@Fe₃O₄ Nanocomposite

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Biodegradable polyaniline/dextrin conductive nanocomposites: synthesis, characterization, and study of antioxidant activity and sorption of heavy metal ions

Cited by 83 publications

References 35 publications

Metal‐Based Nanomaterials in Biomedical Applications: Antimicrobial Activity and Cytotoxicity Aspects

Metal‐Based Nanomaterials in Biomedical Applications: Antimicrobial Activity and Cytotoxicity Aspects

Synthesis and characterization of PMMA composites activated with starch for immobilization of L‐asparaginase

Effective Adsorption of Heavy Metal Cations by Superparamagnetic Poly(aniline‐co‐m‐phenylenediamine)@Fe3O4 Nanocomposite

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Effective Adsorption of Heavy Metal Cations by Superparamagnetic Poly(aniline‐co‐m‐phenylenediamine)@Fe₃O₄ Nanocomposite