Preparation and characterization of a novel conducting nanocomposite blended with epoxy coating for antifouling and antibacterial applications

Mostafaei, Amir; Nasirpouri, Farzad

doi:10.1007/s11998-013-9487-1

Cited by 67 publications

(28 citation statements)

References 49 publications

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“…[28] II) The oxirane component on the surface of OSiNDs has the affinity for bacteria. [26] To verify this hypothesis, amine-terminated OSiNDs were prepared via a similar onestep hydrothermal reaction of amine-containing silane molecule, N- [3-(trimethoxysilyl)propyl]ethylenediamine (DAMO), and RB. [24a] The DAMO molecule has a similar structure to GPTMS (Figure 3a,b), and the obtained nanodots (abbreviated as DAMO OSiNDs) had an ultrasmall size of ≈1.9 nm Small 2019, 15,1901647 ( Figure S5, Supporting Information).…”

Section: Resultsmentioning

confidence: 99%

“…Moreover, it has been reported that the epoxy component has a strong affinity for bacteria. [26] Herein, we introduce a simple strategy to synthesize epoxy group-terminated nanodots for use as a multifunctional platform for imaging and eliminating MRB as well as multidrug-resistant bacterial biofilms. Using one-step hydrothermal reaction of an epoxy group-containing silane molecule, 3-glycidoxypropyltrimethoxysilane (GPTMS), and an organic dye, rose bengal (RB), greenemitting organosilica nanodots (abbreviated as OSiNDs) were rationally prepared with several unique properties including a high photoluminescence quantum yield (PLQY) of ≈31% for imaging, the ultrasmall size for entry into bacteria, the proper surface chemistry (with epoxy groups) for further modification and improving the affinity for bacteria, and the negative surface potential endowing the nanodots with the ability to escape from the efflux proteins/intracellular enzymes of MRB and to prevent from being detained by the EPS matrices of bacterial biofilms.…”

Section: Introductionmentioning

confidence: 99%

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One‐Step Synthesis of Epoxy Group‐Terminated Organosilica Nanodots: A Versatile Nanoplatform for Imaging and Eliminating Multidrug‐Resistant Bacteria and Their Biofilms

Chen

Zhang

Lin

et al. 2019

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Multidrug‐resistant bacteria (MRB) and their biofilms, both of which develop high levels of drug tolerance, cause severe threats to global health. This study demonstrates that biocompatible fluorescent silicon‐containing nanodots can be a multifunctional platform for simultaneously imaging and eliminating MRB and their biofilms. Ultrasmall epoxy group (oxirane)‐functionalized organosilica nanodots (OSiNDs) with a high photoluminescence quantum yield of ≈31% are synthesized via a simple one‐step hydrothermal treatment of an epoxy group‐containing silane molecule, 3‐glycidoxypropyltrimethoxysilane, and an organic dye, rose bengal. The resultant OSiNDs can be employed as a universal imaging reagent for visualizing various bacteria/biofilms, including MRB and their biofilms. Moreover, the epoxy group‐terminated OSiNDs can be conjugated with amine‐containing reagents only via the simple stirring of the mixtures at an elevated temperature (e.g., 60 °C) for several hours (e.g., 3 h) without the addition of activating reagents. The amine‐containing antibiotic vancomycin (Van) can thus be easily conjugated with the OSiNDs, and the obtained OSiNDs‐Van can successfully inhibit the growth of MRB and even eliminate their biofilms. Collectively, the present work may give new impetus to the development of novel antibacterial and anti‐biofilm agents for overcoming the drug resistance of bacteria.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

One‐Step Synthesis of Epoxy Group‐Terminated Organosilica Nanodots: A Versatile Nanoplatform for Imaging and Eliminating Multidrug‐Resistant Bacteria and Their Biofilms

Chen

Zhang

Lin

et al. 2019

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“…In some special industries, such as chemical and pharmaceutical industries coatings with both antibacterial and antistatic properties are necessary in order to the safety of plant to be guaranteed . In this regard, nanocomposite material owing to their improved synergetic chemical and physical properties could be a good choice that can be utilized to bestow densification and static charge dispersion ability on the surface coatings …”

Section: Introductionmentioning

confidence: 99%

PANI‐chitosan‐TiO₂ternary nanocomposite and its effectiveness on antibacterial and antistatic behavior of epoxy coating

Mirmohseni

Rastgar

Olad

2019

J of Applied Polymer Sci

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A straightforward approach has been developed for fabricating antibacterial and antistatic epoxy coatings by using polyanilinechitosan modified TiO 2 ternary nanocomposite. This nanocomposite was synthesized through the following steps. First, chitosan was grafted onto the TiO 2 nanoparticles and then final nanocomposite was prepared via solution polymerization of aniline. Electrical conductivity measurement revealed that nanocomposite with 7.5 wt % of the modified TiO 2 nanoparticles has noticeably higher conductivity compared to polyaniline. Evaluating the coatings' antibacterial property indicated epoxy coatings with the content of ternary nanocomposite show significant bactericidal activity against Gram-positive bacteria and have acceptable antibacterial action against Gram-negative ones. Also, obtained results showed that the ternary nanocomposite would greatly decrease coatings' surface resistivity and when nanocomposite content is about 2 wt % surface resistivity is about 3 × 10 7 Ω sq −1 . On the contrary, the coating with nanocomposite loading exhibits improved thermal and mechanical performance compared to the coating made of neat epoxy.

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“…In some industries, especially in the chemical and pharmaceutical industries, utilizing the coatings with antibacterial and antistatic properties would be necessary to safety and efficacy of such plants to be guaranteed [5]. In this regard, nanocomposite material owing to their improved physical and chemical properties could be counted as a proper choice for creating antibacterial and antistatic properties in polymer coatings [5,6].…”

Section: Introductionmentioning

confidence: 99%

Preparation of PANI–CuZnO ternary nanocomposite and investigation of its effects on polyurethane coatings antibacterial, antistatic, and mechanical properties

2018

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In this study, a facile method for the production of Antibacterial and Antistatic polyurethane coatings was investigated using copper modified ZnO nanoparticles-polyaniline nanofibers (PANI-CuZnO) ternary nanocomposite. PANI-CuZnO ternary nanocomposite was synthesized through two steps. First, copper-modified ZnO nanoparticles were produced through the hydrolysis method using acetate precursors, and then they were mixed with polyaniline nanofibers, which were synthesized by seeding method. The obtained nanocomposite was characterized by FTIR, XRD, and FESEM techniques. Results of evaluating the antibacterial action of the polyurethane coatings with the content of ternary nanocomposite showed that the obtained coatings have a proper antibacterial action against Gram-positive and Gram-negative bacteria. In addition, measuring the coatings' surface electrical resistance revealed that addition of the ternary nanocomposite to the polyurethane coatings' matrix causes the surface electrical resistance of the coatings significantly decreases and reaches 8 × 10 7 Ω/sq. Thereby, they could be categorized as an antistatic coating. Moreover, the addition of PANI-CuZnO enhanced adhesion strength and scratch resistance of the final polyurethane coatings.

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Preparation and characterization of a novel conducting nanocomposite blended with epoxy coating for antifouling and antibacterial applications

Cited by 67 publications

References 49 publications

One‐Step Synthesis of Epoxy Group‐Terminated Organosilica Nanodots: A Versatile Nanoplatform for Imaging and Eliminating Multidrug‐Resistant Bacteria and Their Biofilms

One‐Step Synthesis of Epoxy Group‐Terminated Organosilica Nanodots: A Versatile Nanoplatform for Imaging and Eliminating Multidrug‐Resistant Bacteria and Their Biofilms

PANI‐chitosan‐TiO₂ternary nanocomposite and its effectiveness on antibacterial and antistatic behavior of epoxy coating

Preparation of PANI–CuZnO ternary nanocomposite and investigation of its effects on polyurethane coatings antibacterial, antistatic, and mechanical properties

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Preparation and characterization of a novel conducting nanocomposite blended with epoxy coating for antifouling and antibacterial applications

Cited by 67 publications

References 49 publications

One‐Step Synthesis of Epoxy Group‐Terminated Organosilica Nanodots: A Versatile Nanoplatform for Imaging and Eliminating Multidrug‐Resistant Bacteria and Their Biofilms

One‐Step Synthesis of Epoxy Group‐Terminated Organosilica Nanodots: A Versatile Nanoplatform for Imaging and Eliminating Multidrug‐Resistant Bacteria and Their Biofilms

PANI‐chitosan‐TiO2ternary nanocomposite and its effectiveness on antibacterial and antistatic behavior of epoxy coating

Preparation of PANI–CuZnO ternary nanocomposite and investigation of its effects on polyurethane coatings antibacterial, antistatic, and mechanical properties

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PANI‐chitosan‐TiO₂ternary nanocomposite and its effectiveness on antibacterial and antistatic behavior of epoxy coating