Normally Oriented Adhesion versus Friction Forces in Bacterial Adhesion to Polymer-Brush Functionalized Surfaces Under Fluid Flow

2014 ◽  
Vol 24 (28) ◽  
pp. 4435-4441 ◽  
Author(s):  
Jan J. T. M. Swartjes ◽  
Deepak H. Veeregowda ◽  
Henny C. van der Mei ◽  
Henk J. Busscher ◽  
Prashant K. Sharma
Keyword(s):  
Fluid Flow ◽  
Bacterial Adhesion ◽  
Polymer Brush ◽  
Friction Forces ◽  
Functionalized Surfaces

Bacterial adhesion on hybrid cationic nanoparticle–polymer brush surfaces: Ionic strength tunes capture from monovalent to multivalent binding

2011 ◽  
Vol 87 (1) ◽  
pp. 109-115 ◽  
Author(s):  
Bing Fang ◽  
Saugata Gon ◽  
Myoung Park ◽  
Kushi-Nidhi Kumar ◽  
Vincent M. Rotello ◽  
...  
Keyword(s):  
Ionic Strength ◽  
Bacterial Adhesion ◽  
Polymer Brush ◽  
Multivalent Binding

Bacterial adhesion and growth on a polymer brush-coating

Biomaterials ◽  
2008 ◽  
Vol 29 (30) ◽  
pp. 4117-4121 ◽  
Author(s):  
M. Reza Nejadnik ◽  
Henny C. van der Mei ◽  
Willem Norde ◽  
Henk J. Busscher
Keyword(s):  
Bacterial Adhesion ◽  
Polymer Brush ◽  
Brush Coating

Functionalized Surfaces: Bacterial Adhesion

2016 ◽  
pp. 3509-3525 ◽  
Author(s):  
Narendra Pal Singh Chauhan ◽  
Sangeeta Kalal ◽  
Priya Juneja ◽  
Pinki B. Punjabi
Keyword(s):  
Bacterial Adhesion ◽  
Functionalized Surfaces

How Functionalized Surfaces Can Inhibit Bacterial Adhesion and Viability

2019 ◽  
Vol 5 (10) ◽  
pp. 4920-4936 ◽  
Author(s):  
Fiorela Ghilini ◽  
Diego E. Pissinis ◽  
Alejandro Miñán ◽  
Patricia L. Schilardi ◽  
Carolina Diaz
Keyword(s):  
Bacterial Adhesion ◽  
Functionalized Surfaces

scholarly journals Determination of the Shear Force at the Balance between Bacterial Attachment and Detachment in Weak-Adherence Systems, Using a Flow Displacement Chamber

2007 ◽  
Vol 74 (3) ◽  
pp. 916-919 ◽  
Author(s):  
M. Reza Nejadnik ◽  
Henny C. van der Mei ◽  
Henk J. Busscher ◽  
Willem Norde
Keyword(s):  
Bacterial Adhesion ◽  
Biofilm Formation ◽  
Shear Force ◽  
Polymer Brush ◽  
Bacterial Attachment ◽  
Adhesion Forces ◽  
Shear Forces ◽  
Flow Displacement

ABSTRACT We introduce a procedure for determining shear forces at the balance between attachment and detachment of bacteria under flow. This procedure can be applied to derive adhesion forces in weak-adherence systems, such as polymer brush coatings, which are currently at the center of attention for their control of bacterial adhesion and biofilm formation.

Characterization of Plastic Hypodermic Needles

2009 ◽  
Vol 3 (4) ◽  
Author(s):  
Eric Busillo ◽  
Jonathan S. Colton
Keyword(s):  
Finite Element ◽  
Fluid Flow ◽  
Silicone Oil ◽  
Hypodermic Needle ◽  
Finite Element Analyses ◽  
Friction Forces ◽  
Pig Skin ◽  
Polyurethane Film ◽  
Penetration Tests ◽  
Design And Testing

A significant potential for plastic hypodermic needles exists as an alternative to current steel needles. This paper presents the design and testing of one type of plastic hypodermic needle. The buckling and penetration characteristics of the needles were modeled and analyzed analytically and by finite element analyses. Experimental penetration tests using plastic and steel control hypodermic needles with skin mimics, specifically polyurethane film and pig skin, were performed to determine penetration and friction forces. Lubricated plastic needles achieved successful penetrations in 25–75% of the tests in both polyurethane film and pig skin with penetration forces ranging from 7 N to 10 N. Penetration tests into butyl rubber stoppers also were conducted with lubricated plastic needles penetrating in 75% of the tests with an average penetration force of 8.3 N. Various lubricants, including silicone oil and a medical grade silicone dispersion, were also studied. In addition, the needles underwent successful perpendicular bending tests and cannula stiffness tests. Finally, fluid flow tests determined fluid flow rates through the needles. Experimental results were compared with each other and to finite element analyses and are discussed.

Polymer Brush-Functionalized Surfaces with Reversible, Precisely Controllable Two-Way Responsive Wettability

2013 ◽  
Vol 46 (17) ◽  
pp. 7018-7026 ◽  
Author(s):  
Wei Sun ◽  
Shouxue Zhou ◽  
Bo You ◽  
Limin Wu
Keyword(s):  
Polymer Brush ◽  
Functionalized Surfaces

scholarly journals Antibacterial Efficacy of Iron-Oxide Nanoparticles against Biofilms on Different Biomaterial Surfaces

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Monica Thukkaram ◽  
Soundarya Sitaram ◽  
Sathish kumar Kannaiyan ◽  
Guruprakash Subbiahdoss
Keyword(s):  
Iron Oxide ◽  
Iron Oxide Nanoparticles ◽  
Bacterial Adhesion ◽  
Biofilm Formation ◽  
Polymer Brush ◽  
Oxide Nanoparticles ◽  
Implant Surface ◽  
Biofilm Growth ◽  
Biomaterial Surfaces ◽  
Coated Surfaces

Biofilm growth on the implant surface is the number one cause of the failure of the implants. Biofilms on implant surfaces are hard to eliminate by antibiotics due to the protection offered by the exopolymeric substances that embed the organisms in a matrix, impenetrable for most antibiotics and immune cells. Application of metals in nanoscale is considered to resolve biofilm formation. Here we studied the effect of iron-oxide nanoparticles over biofilm formation on different biomaterial surfaces and pluronic coated surfaces. Bacterial adhesion for 30 min showed significant reduction in bacterial adhesion on pluronic coated surfaces compared to other surfaces. Subsequently, bacteria were allowed to grow for 24 h in the presence of different concentrations of iron-oxide nanoparticles. A significant reduction in biofilm growth was observed in the presence of the highest concentration of iron-oxide nanoparticles on pluronic coated surfaces compared to other surfaces. Therefore, combination of polymer brush coating and iron-oxide nanoparticles could show a significant reduction in biofilm formation.

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