Tunable seat belt behavior in nanocomposite interfaces inspired from bacterial adhesion pili

Soft Matter ◽  
2018 ◽  
Vol 14 (9) ◽  
pp. 1530-1539 ◽  
Author(s):  
Kerim C. Dansuk ◽  
Sinan Keten
Keyword(s):  
Bacterial Adhesion ◽  
Seat Belt ◽  
Cohesive Strength ◽  
Catch Bond ◽  
Abiotic Surfaces ◽  
Responsive Behavior ◽  
Rate Responsive

Chaperone-Usher pilus with catch bond adhesin—a bacterial biopolymer with the ability to attach to biotic/abiotic surfaces—can act as a “molecular seat belt” that has tunable cohesive strength and rate-responsive behavior.

scholarly journals Catch-Bond Model Derived from Allostery Explains Force-Activated Bacterial Adhesion

2006 ◽  
Vol 90 (3) ◽  
pp. 753-764 ◽  
Author(s):  
Wendy Thomas ◽  
Manu Forero ◽  
Olga Yakovenko ◽  
Lina Nilsson ◽  
Paolo Vicini ◽  
...  
Keyword(s):  
Bacterial Adhesion ◽  
Catch Bond ◽  
Bond Model

scholarly journals High force catch bond mechanism of bacterial adhesion in the human gut

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Zhaowei Liu ◽  
Haipei Liu ◽  
Andrés M. Vera ◽  
Rafael C. Bernardi ◽  
Philip Tinnefeld ◽  
...  
Keyword(s):  
Bacterial Adhesion ◽  
Human Gut ◽  
Catch Bond ◽  
Bond Mechanism

Modeling of the Rate Responsive Behavior of Elastomer Foam Materials

2008 ◽  
Vol 130 (1) ◽  
Author(s):  
Feixia Pan
Keyword(s):  
Finite Element ◽  
Constitutive Model ◽  
Test Data ◽  
Experimental Test ◽  
Strain Rates ◽  
Foam Material ◽  
Material Models ◽  
Rate Dependent ◽  
Responsive Behavior ◽  
Rate Responsive

Elastomer foam materials are shock absorbers that have been extensively used in applications of electronic packaging. Finite element modeling simulation plays an important role in helping the designers determine the best elastomer foam material and the best structure of a shock absorber. Elastomer foam materials have very complicated material behaviors. The prediction of the rate responsive behavior is one of the most interesting topics in elastomer material modeling. The focus of this article is to present a unique method for deriving the rate dependent constitutive model of an elastomer foam based on the extension of the Cowper and Symond law and the curve fitting on experimental test data. The research on rate dependent material models and the material models available in commercially available finite element analysis software have been reviewed. Test data collection at various strain rates has been discussed. Two steps of curve fitting on experimental test data are used to retrieve analytical expression of the constitutive model. The performance of the constitutive model for a foam material has been illustrated and shown to be quite good. This method is easy to understand and the simple formulation of the constitutive model is very suitable for applications in numerical simulation. The constitutive model could be used to predict the stress-strain curves of a foam material at any strain rate, especially at the intermediate strain rates, which are the most difficult to collect so far. In addition, this model could be readily integrated with the hyperelastic material models to more efficiently evaluate the mechanical behavior of an elastomer foam material. The model could potentially be implemented in commercially available software such as ABAQUS and LS-DYNA. The method presented is also useful in deriving constitutive models of rubberlike elastomer materials.

scholarly journals Surface adhesins and exopolymers of selected foodborne pathogens

Microbiology ◽  
2014 ◽  
Vol 160 (12) ◽  
pp. 2561-2582 ◽  
Author(s):  
Zoran Jaglic ◽  
Mickaël Desvaux ◽  
Agnes Weiss ◽  
Live L. Nesse ◽  
Rikke L. Meyer ◽  
...  
Keyword(s):  
Immune Response ◽  
Foodborne Pathogens ◽  
Bacterial Adhesion ◽  
Clinical Impact ◽  
Surface Structures ◽  
Bacterial Surface ◽  
Abiotic Surfaces ◽  
Specific Manner ◽  
Biofilm Development ◽  
Surface Adhesins

The ability of bacteria to bind different compounds and to adhere to biotic and abiotic surfaces provides them with a range of advantages, such as colonization of various tissues, internalization, avoidance of an immune response, and survival and persistence in the environment. A variety of bacterial surface structures are involved in this process and these promote bacterial adhesion in a more or less specific manner. In this review, we will focus on those surface adhesins and exopolymers in selected foodborne pathogens that are involved mainly in primary adhesion. Their role in biofilm development will also be considered when appropriate. Both the clinical impact and the implications for food safety of such adhesion will be discussed.

Nanofabrication of mechano-bactericidal surfaces

Nanoscale ◽  
2017 ◽  
Vol 9 (43) ◽  
pp. 16564-16585 ◽  
Author(s):  
Denver P. Linklater ◽  
Saulius Juodkazis ◽  
Elena P. Ivanova
Keyword(s):  
Bacterial Adhesion ◽  
Biofilm Formation ◽  
Bacterial Inactivation ◽  
Standard Methods ◽  
Abiotic Surfaces

The search for alternatives to standard methods of preventing bacterial adhesion and biofilm formation on biotic and abiotic surfaces alike has led to the use of biomimetics to reinvent, through nanofabrication methods, surfaces whereby the nanostructured topography is directly responsible for bacterial inactivation through physico-mechanical means.

scholarly journals Modeling Bacterial Adhesion to Unconditioned Abiotic Surfaces

2021 ◽  
Vol 7 ◽  
Author(s):  
Christian Spengler ◽  
Erik Maikranz ◽  
Ludger Santen ◽  
Karin Jacobs
Keyword(s):  
Contact Mechanics ◽  
Bacterial Adhesion ◽  
Biofilm Formation ◽  
Abiotic Surfaces ◽  
Colloidal Science ◽  
Traditional Approaches ◽  
Adhesion Process

Understanding bacterial adhesion as a first step toward biofilm formation is of fundamental interests in many applications. While adhesion to abiotic surfaces is directly relevant for some applications, it also provides a controlled reference setting to study details of the adhesion process in general. This review describes the traditional approaches from contact mechanics and colloidal science, which treat the bacterium–substratum interaction in a continuous manner. We will discuss its shortcomings and provide an introduction to different approaches, which understand the adhesion process as a result of individual stochastic interactions of many macromolecules with the substratum.

scholarly journals Surface Physicochemistry and Ionic Strength Affects eDNA’s Role in Bacterial Adhesion to Abiotic Surfaces

PLoS ONE ◽  
2014 ◽  
Vol 9 (8) ◽  
pp. e105033 ◽  
Author(s):  
Viduthalai R. Regina ◽  
Arcot R. Lokanathan ◽  
Jakub J. Modrzyński ◽  
Duncan S. Sutherland ◽  
Rikke L. Meyer
Keyword(s):  
Ionic Strength ◽  
Bacterial Adhesion ◽  
Abiotic Surfaces
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