Bioinspired self-adhesive polymer for surface modification to improve antifouling property / Heo Seong-Beom in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 10, N° 6 (11/2013)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 10, N° 6 (11/2013) . - p. 811-819 Titre : Bioinspired self-adhesive polymer for surface modification to improve antifouling property Type de document : texte imprimé Auteurs : Heo Seong-Beom, Auteur ; Jeon Young-Sil, Auteur ; Kim Young Jun, Auteur ; Kim Soo Hyun, Auteur ; Kim Ji-Heung, Auteur Année de publication : 2013 Article en page(s) : p. 811-819 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Dopamine Polyaspartamide Polyéthylène glycol Revêtements antisalissures Traîtements de surface Index. décimale : 667.9 Revêtements et enduits Résumé : The catechol functional group of dopamine (3,4-dihydroxyphenethylamine) forms a strong coordinate bond with both inorganic and organic substrates in a wet environment. The nonfouling surfaces required for this process are typically prepared through the immobilization of poly(ethylene glycol), so-called, PEGylation. In this work, polyaspartamides containing adhesive catechol and methoxy PEG pendants were synthesized from polysuccinimide through successive aminolysis reactions. The adhesion and crosslinking of the polyaspartamide derivatives in pH-controlled aqueous media was successfully utilized to modify a glass surface using a simple immersion method. Contact angle, ?-step profiler, SEM and EDS, XPS, and AFM were used to characterize and verify the surface coating. In addition, the biocompatibility and antifouling properties of the modified surface were elucidated with a cell viability test, and a protein adsorption experiment, respectively. This biocompatible polymer system has biomedical application potential for use in adhesives and the surface coating of various biomaterials. Note de contenu : - EXPERIMENTAL : Materials - Synthesis of PolyAsPam (MPEG/DOP/EDA) derivatives - Surface coating on glass substrates - Characterization and measurement - RESULTS AND DISCUSSION : Synthesis and characterization of MPEG-dopamine-conjugated PolyAspAm - Modification of glass substrates and surface analysis - Biocompatibility and antifouling property DOI : 10.1007/s11998-013-9528-9 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-013-9528-9.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=19820 [article]

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Enhancing antibacterial and anticorrosion properties of 304 stainless steel surfaces: a multi-modification approach based on DA/PEI/SiO2/AMPs / De Liu in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 20, N° 3 (05/2023)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 20, N° 3 (05/2023) . - p. 979-994 Titre : Enhancing antibacterial and anticorrosion properties of 304 stainless steel surfaces: a multi-modification approach based on DA/PEI/SiO2/AMPs Type de document : texte imprimé Auteurs : De Liu, Auteur ; Huming Wang, Auteur ; Xuxu Dong, Auteur ; Xiaodan Liu, Auteur ; Sergi Dosta, Auteur ; Chao Zhang, Auteur ; Pan Cao, Auteur Année de publication : 2023 Article en page(s) : p. 979-994 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Acier L'acier est un alliage métallique utilisé dans les domaines de la construction métallique et de la construction mécanique. L'acier est constitué d'au moins deux éléments, le fer, très majoritaire, et le carbone, dans des proportions comprises entre 0,02 % et 2 % en masse1. C'est essentiellement la teneur en carbone qui confère à l'alliage les propriétés du métal qu'on appelle "acier". Il existe d’autres métaux à base de fer qui ne sont pas des aciers comme les fontes et les ferronickels par exemple. Antibactériens Anticorrosifs Anticorrosion Dioxyde de silicium Dopamine Matériaux hybrides Métaux -- Revêtements protecteurs Peptides Polyéther imide Revêtements antisalissures Revêtements organiques Index. décimale : 667.9 Revêtements et enduits Résumé : Marine fouling can cause a series of hazards in the marine industrial field, and the traditional antifouling methods do not fulfill the green antifouling requirement. Herein, a novel DA/PEI/SiO2/antibacterial peptide antifouling coating was prepared by a multi-modification approach. Initially, the nanocoatings were prepared by depositing DA, PEI, and SiO2 on the dopamine (DA)-modified 304 stainless steel (SS) surface, and finally, the DA/PEI/SiO2/AMPs composite coatings were prepared by grafting antimicrobial peptides (AMPs). The surfaces of SS before and after modification were characterized by Fourier transform infrared spectrometer (FTIR), X-ray photoelectron spectrometer (XPS), field emission scanning electron microscopy (SEM), contact angle measurement, and 3D optical profilometer. SSN-1 cells were used to evaluate the cytocompatibility of the modified surface. The results revealed that the cells cultured on the modified surface still maintained a good adhesion morphology, demonstrating the superior cytocompatibility of the composite coating. The anti-biofilm and antimicrobial properties of the modified samples were evaluated using Vibrio natriegens. The antibacterial efficiency of SS-DA/PEI/SiO2 surfaces before and after AMPs modification reached 78.39 and 95.90%, and anti-biofilm efficiency of AMPs modified surface achieved 72.87% corresponding to 44.19% of SS-DA/PEI/SiO2. The successful grafting of AMPs improved the antibacterial and anti-biofilm properties of the modified sample surfaces. Electrochemical and stability tests indicated that the modified sample surfaces exhibited excellent corrosion resistance and antifouling stability properties. This research could provide a novel green anti-fouling and anti-corrosion strategy for the marine industry and other related fields. Note de contenu : - EXPERIMENTAL SECTION : Materials and reagents - Preparation of SS-DA/PEI/SiO2-M composite surfaces - Surface characterization - Antibiofilm evaluation - Antibacterial testing - Electrochemical performance tests - Cell adhesion assays - Robustness analysis - Statistical analysis - RESULTS AND DISCUSSION : Fabrication of nanocomposite films and MAG II grafting - Characterization of SS, SS-DA/PEI/SiO2, and SS-DA/PEI/SiO2-M - Anti-biofilm and antibacterial performance assessment - Corrosion resistance analysis - Cell adhesion assays - Robustness analysis - Table 1 : XPS quantitative analysis results - Table 2 : Analyzed parameters of Tafel plots of SS, SS-DA/PEI/SiO2, and SS-DA/PEI/SiO2-M after exposure to V. natriegens inoculation medium for 1, 3, and 7 days DOI : https://doi.org/10.1007/s11998-022-00718-7 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-022-00718-7.pdf?pdf=button Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39442 [article]

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Rapid fabrication of robust and bright colloidal amorphous arrays on textiles / Xiaodi Shi in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 17, N° 4 (07/2020)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 17, N° 4 (07/2020) . - p. 1033-1042 Titre : Rapid fabrication of robust and bright colloidal amorphous arrays on textiles Type de document : texte imprimé Auteurs : Xiaodi Shi, Auteur ; Jialei He, Auteur ; Lianchao Wu, Auteur ; Shuoran Chen, Auteur ; Xihua Lu, Auteur Année de publication : 2020 Article en page(s) : p. 1033-1042 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Caractérisation Dopamine Latex Polydopamine Réseaux amorphes colloïdaux Revêtements -- Propriétés mécaniques Revêtements organiques Textiles et tissus -- Apprêt Index. décimale : 667.9 Revêtements et enduits Résumé : Angle-independent colloidal amorphous arrays (CAA) have attracted considerable research interest because of their fantastic advantages, such as being low-cost, noniridescent, and fadeless. However, the color of CAA coating is usually dim because of the incoherent scattering of latex spheres in the CAA coating. Moreover, weak interactive forces among the latex spheres in CAA coating lead to the mechanical strength of CAA being poor. This study proposes a low-cost and effective strategy to fabricate a high mechanical strength, brilliant, and noniridescent CAA coating within hours on fabric, pretreated by dopamine prepolymer and therefore possessing a highly adhesive property. Consequently, the CAA coating can be adhered tightly to fabric. In addition, with the improvement of the self-assembly temperature of latex spheres, dopamine prepolymer can flow and penetrate into the voids of latex spheres in the CAA coating and further polymerize into highly adhesive polydopamine (PDA), and the latex spheres in the CAA coating can be tightly bonded together by PDA, meaning that the prepared CAA coating possesses robust mechanical strength. Furthermore, black PDA can enhance and highlight the color visibility of the CAA coating, where brilliant and bright CAA coatings are achieved through the penetration of black PDA into the CAA coating. The fabrication of a robust and bright CAA coating makes the practical application of CAA dye possible. Note de contenu : - EXPERIMENTAL SECTION : Materials - Pretreatment of fabric by dopamine - Characterization - SUPPORTING INFORMATION - COMPLIANCE WITH ETHICAL STANDARD DOI : https://doi.org/10.1007/s11998-019-00311-5 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-019-00311-5.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34390 [article]

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