Electrophoretic Co-Deposition of Chitosan and Graphene Oxide Results in Antibacterial Coatings for Medical Applications

2015 ◽  
Vol 654 ◽  
pp. 176-182 ◽  
Author(s):  
Anke Lisa Metze ◽  
Fatemehsadat Pishbin ◽  
Mary P. Ryan ◽  
Sigrid Seuss ◽  
Mani Diba ◽  
...  
Keyword(s):  
Contact Angle ◽  
Stainless Steel ◽  
Graphene Oxide ◽  
Polymer Matrix ◽  
Electrophoretic Deposition ◽  
Composite Coatings ◽  
Medical Applications ◽  
Antibacterial Studies ◽  
Graphene Oxide Sheets ◽  
Roughness Measurements

Chitosan – graphene oxide (GO) composite coatings intended for antibacterial applications were obtained by cathodic electrophoretic deposition (EPD) on stainless steel. The coatings were characterized using SEM, FTIR, contact angle and roughness measurements and by antibacterial studies againstE.coli. The coating was observed to consist of a polymer matrix with embedded, agglomerated graphene oxide sheets. A decrease in bacteria cell viability of at least 50 % was measured on the chitosan – GO surface in comparison to uncoated stainless steel.

Alginate/Bioglass® composite coatings on stainless steel deposited by direct current and alternating current electrophoretic deposition

2013 ◽  
Vol 233 ◽  
pp. 49-56 ◽  
Author(s):  
Qiang Chen ◽  
Luis Cordero-Arias ◽  
Judith A. Roether ◽  
Sandra Cabanas-Polo ◽  
Sannakaisa Virtanen ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Electrophoretic Deposition ◽  
Direct Current ◽  
Composite Coatings ◽  
Alternating Current

Electrophoretic Deposition of PEEK-TiO2 Composite Coatings on Stainless Steel

2012 ◽  
Vol 507 ◽  
pp. 127-133 ◽  
Author(s):  
Sigrid Seuss ◽  
Tayyab Subhani ◽  
Min Yi Kang ◽  
Kenji Okudaira ◽  
Isaac E. Aguilar Ventura ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Stainless Steel ◽  
Electrophoretic Deposition ◽  
Biomedical Applications ◽  
316L Stainless Steel ◽  
Treatment Process ◽  
Composite Coatings ◽  
Heat Treatment Process ◽  
Steel Substrates ◽  
Scanning Electron

Electrophoretic deposition (EPD) has been successfully used to deposit composite coatings composed of polyetheretherketone (PEEK) and titanium dioxide (TiO2) nanoparticles on 316L stainless steel substrates. The suspensions of TiO2 nanoparticles and PEEK microparticles for EPD were prepared in ethanol. PEEK-TiO2 composite coatings were optimized using suspensions containing 6wt% PEEK-TiO2 in ethanol with a 3:1 ratio of PEEK to TiO2 in weight and by applying a potential difference of 30 V for 1 minute. A heat-treatment process of the optimized PEEK-TiO2 composite coatings was performed at 335°C for 30 minutes with a heating rate of 10°Cminto densify the deposits. The EPD coatings were microstructurally evaluated by scanning electron microscopy (SEM). It was demonstrated that EPD is a convenient and rapid method to fabricate PEEK/TiO2 coatings on stainless steel which are interesting for biomedical applications.

High temperature friction and wear properties of graphene oxide/polytetrafluoroethylene composite coatings deposited on stainless steel

RSC Advances ◽  
2016 ◽  
Vol 6 (7) ◽  
pp. 5977-5987 ◽  
Author(s):  
N. Nemati ◽  
M. Emamy ◽  
S. Yau ◽  
J.-K. Kim ◽  
D.-E. Kim
Keyword(s):  
Stainless Steel ◽  
Graphene Oxide ◽  
Friction And Wear ◽  
Solid Lubricant ◽  
Composite Coatings ◽  
Friction Material ◽  
Wear Properties ◽  
Low Friction ◽  
Solid Lubricant Coating ◽  
Friction And Wear Properties

Polytetrafluoroethylene (PTFE) coating is known as a low friction material that is often used as a solid lubricant coating.

Electrophoretic deposition of nanostructured TiO2/alginate and TiO2-bioactive glass/alginate composite coatings on stainless steel

2013 ◽  
Vol 113 (1) ◽  
pp. 42-49 ◽  
Author(s):  
L. Cordero-Arias ◽  
S. Cabanas-Polo ◽  
J. Gilabert ◽  
O. M. Goudouri ◽  
E. Sanchez ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Bioactive Glass ◽  
Electrophoretic Deposition ◽  
Composite Coatings ◽  
Nanostructured Tio2

scholarly journals Electrochemical Polymerization of PEDOT–Graphene Oxide–Heparin Composite Coating for Anti-fouling and Anti-clotting of Cardiovascular Stents

Polymers ◽  
2019 ◽  
Vol 11 (9) ◽  
pp. 1520 ◽  
Author(s):  
Yang ◽  
Tsou ◽  
Hsiao ◽  
Cheng ◽  
Liu ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Graphene Oxide ◽  
Blood Clotting ◽  
Electrochemical Polymerization ◽  
Composite Coatings ◽  
3T3 Cells ◽  
Clotting Time ◽  
Cardiovascular Stents ◽  
Electrochemical Copolymerization ◽  
Steel Substrates

ABSTRACT: In this study, a novel hemocompatible coating on stainless steel substrates was prepared by electrochemically copolymerizing 3,4-ethylenedioxythiophene (EDOT) with graphene oxide (GO), polystyrene sulfonate (PSS), or heparin (HEP) on SUS316L stainless steel, producing an anti-fouling (anti-protein adsorption and anti-platelet adhesion) surface to avoid the restenosis of blood vessels. The negative charges of GO, PSS, and HEP repel negatively charged proteins and platelets to achieve anti-fouling and anti-clotting. The results show that the anti-fouling capability of the poly(3,4-ethylenedioxythiophene) (PEDOT)/PSS coating is similar to that of the PEDOT/HEP coating. The anti-fouling capability of PEDOT/GO is higher than those of PEDOT/HEP and PEDOT/PSS. The reason for this is that GO exhibits negatively charged functional groups (COO−). The highest anti-fouling capability was found with the PEDOT/GO/HEP coating, indicating that electrochemical copolymerization of PEDOT with GO and HEP enhances the anti-fouling capability. Furthermore, the biocompatibility of the PEDOT coatings was tested with 3T3 cells for 1–5 days. The results show that all PEDOT composite coatings exhibited biocompatibility. The blood clotting time (APTT) of PEDOT/GO/HEP was prolonged to 225 s, much longer than the 40 s of pristine SUS316L stainless steel (the control), thus greatly improving the anti-blood-clotting capability of cardiovascular stents.

scholarly journals Electrophoretic Deposition of Chitosan/h-BN and Chitosan/h-BN/TiO2 Composite Coatings on Stainless Steel (316L) Substrates

Materials ◽  
2014 ◽  
Vol 7 (3) ◽  
pp. 1814-1829 ◽  
Author(s):  
Namir Raddaha ◽  
Luis Cordero-Arias ◽  
Sandra Cabanas-Polo ◽  
Sannakaisa Virtanen ◽  
Judith Roether ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Electrophoretic Deposition ◽  
Composite Coatings ◽  
Stainless Steel 316L

Electrophoretic deposition of PEEK-nano alumina composite coatings on stainless steel

2009 ◽  
Vol 203 (10-11) ◽  
pp. 1349-1359 ◽  
Author(s):  
Ilaria Corni ◽  
Nico Neumann ◽  
Saša Novak ◽  
Katja König ◽  
Paolo Veronesi ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Electrophoretic Deposition ◽  
Composite Coatings ◽  
Nano Alumina ◽  
Alumina Composite
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