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Browsing by Subject "Atomic force microscopy"

Now showing items 1-17 of 17

Arrangement of Type IV Collagen and Laminin on Substrates with Controlled Density of ¿OH Groups

Coelho, Nuno Miranda; González García, Cristina; Salmerón Sánchez, Manuel; Altankov, George (Mary Ann Liebert, 2011)

Collagen IV (Col IV) and laminin (Lam) are the main structural components of the basement membrane where they form two overlapping polymeric networks. We studied the adsorption pattern of these proteins on five model ...
Arrangement of Type IV Collagen on NH2 and COOH Functionalized Surfaces

Miranda Coelho, Nuno; González García, Cristina; Salmerón Sánchez, Manuel; Altankov, George (Wiley-Blackwell, 2011-07)

Apart from the paradigm that cell-biomaterials interaction depends on the adsorption of soluble adhesive proteins we anticipate that upon distinct conditions also other, less soluble ECM proteins such as collagens, associate ...
Atomic force microscopy as a tool for binder identification in ancient photographic processes

Nieto-Villena, A; Martinez, J. R.; de la Cruz-Mendoza, J. A.; Valcarcel Andrés, Juan Cayetano; Ortega-Zarzosa, G.; Solbes-Garcia, A.; Vazquez-Martinez, E. (John Wiley & Sons, 2018)

[EN] Focusing in the photographic archive of Julian Carrillo (Mexico), a microstructural analysis of surface photography was carried on to prove the feasibility of atomic force microscopy to identify the binder used in the ...
BIOLOGICAL ACTIVITY OF FIBRONECTIN AT THE CELL-MATERIAL INTERFACE

González García, Cristina (Universitat Politècnica de València, 2012-11-05)

Esta tesis aborda la actividad biológica de la fibronectina (FN) como proteína de interfase en la interacción célula-material. La tesis investiga la respuesta de la proteína, en términos de cantidad adsorbida y conformación, ...
Characterization of azo dyes on Pt and Pt/polyaniline/dispersed Pt electrodes

Molina Puerto, Javier; Fernández Sáez, Javier; Del Río García, Ana Isabel; Bonastre Cano, José Antonio; Cases Iborra, Francisco Javier (Elsevier, 2012-06-15)

The electrochemical characterization of two organic dyes (amaranth and procion orange MX-2R) has been performed on Pt electrodes and Pt electrodes coated with polyaniline and dispersed Pt. Electrodes with different Pt loads ...
Direct visualization of the native structure of viroid RNAs at single-molecule resolution by atomic force microscopy

Moreno, M.; Vázquez, L.; López Carrasco, A.; Martín-Gago, J. A.; FLORES PEDAUYE, RICARDO; Briones, C. (Landes Bioscience, 2019)

[EN] Viroids are small infectious, non-protein-coding circular RNAs that replicate independently and, in some cases, incite diseases in plants. They are classified into two families: Pospiviroidae, composed of species that ...
Fabricación y caracterización de biomateriales basados en policaprolactona y ácido poliláctico en su interacción con medio de cultivo acelular

Melchior, Quentin (Universitat Politècnica de València, 2021-03-10)

[ES] En este TFM, de carácter experimental, se pretende, en primer lugar, desarrollar el procedimiento de fabricación de superficies continuas con rugosidades superficiales muy bajas de policaprolactona, ácido poliláctico ...
Fibrinogen organization at the cell-material interface directs endothelial cell behavior

Gugutkov, Dencho; González García, Cristina; Altankov, George; Salmerón Sánchez, Manuel (SAGE Publications, 2011)

[EN] Fibrinogen (FG) adsorption on surfaces with controlled fraction of -OH groups was investigated with AFM and correlated to the initial interaction of primary endothelial cells (HUVEC). The -OH content was tailored ...
Fibronectin distribution on demixed nanoscale topographies

Perez Garnes, Manuel; González García, Cristina; Moratal Pérez, David; Rico Tortosa, Patricia María; Salmerón Sánchez, Manuel (Wichtig Editore, 2011-02-04)

[EN] Purpose: It is known that surface nanotopography influences cell adhesion and differentiation. Our aim is to analyze the effect of nanoscale topography on fibronectin adsorption and, afterwards, on cell adhesion in ...
Gas Nitriding of Sintered Austenitic Stainless Steel

Baranowska, Jolanta; Amigó Borrás, Vicente (Trans Tech Publications, 2011-04)

The results concerning gas nitriding of sintered stainless steel are presented in the paper. The samples made of 316L steel were gas nitrided at temperatures between 400-550°C. The microstructure of the layer was investigated ...
Modification of surface wettability of sodium ionomer sheets via atmospheric plasma treatment

España Giner, José Manuel; García Sanoguera, David; Sánchez Nacher, Lourdes; López Martínez, Juan; Balart Gimeno, Rafael Antonio (Wiley-Blackwell, 2012-12)

[EN] In this study, atmospheric plasma treatment has been used to modify the wetting properties of ethylene-methacrylic acid sodium ionomer. The effects of the plasma treatment on surface properties of this ionomer have ...
Morphological and statistical analysis of biomaterials with applications in tissue engineering by means of microscopy image processing

Cardona Marsal, Ramón; Salmerón Sánchez, Manuel; Vallés Lluch, Ana; Moratal Pérez, David (Institute of Electrical and Electronics Engineers (IEEE), 2011-06)

This work presents the software implementation of a tissue engineering image analysis tool through the study of several biomaterials by means of different microscopy techniques (optical, scanning electron, and atomic force ...
Role of fibronectin in topographical guidance of neurite extension onelectrospun fibers

Mukhatyar, Vivek J.; Salmerón Sánchez, Manuel; Rudra, Soumon; Mukhopadaya, Shoumit; Barker, Thomas H.; Garcia, Andres J.; Bellamkonda, Ravi V. (Elsevier, 2011)

Bridging of long peripheral nerve gaps remains a significant clinical challenge. Electrospun nanofibers have been used to direct and enhance neurite extension in vitro and in vivo. While it is well established that oriented ...
Role of surface chemistry in protein remodeling at the cell-material interface

Llopis Hernández, Virginia; Rico Tortosa, Patricia María; Ballester Beltrán, José; Moratal Pérez, David; Salmerón Sánchez, Manuel (Public Library of Science, 2011)

Background: The cell-material interaction is a complex bi-directional and dynamic process that mimics to a certain extent the natural interactions of cells with the extracellular matrix. Cells tend to adhere and rearrange ...
Segmental Poly(urethane-urea) elastomers based on polycaporlactone: structure and porperties

May Hernandez, Luis Humberto; Hernandez Sanchez, Fernando; Gómez Ribelles, José Luís; Sabater i Serra, Roser (Wiley, 2011)

A series of segmented poly(urethane-urea) polymers have been synthesized varying the hard segments content, based on the combination of polycaprolactone diol and aliphatic diisocyanate (Bis(4-isocyanatocyclohexyl)methane), ...
Surface modification of polypropylene substrates by UV photografting of methyl methacrylate (MMA) for improved surface wettability

Balart Gimeno, Javier Francisco; Fombuena Borrás, Vicent; Boronat Vitoria, Teodomiro; Reig Pérez, Miguel Jorge; Balart Gimeno, Rafael Antonio (Springer Verlag (Germany), 2012-03)

Despite polypropylene is one of the most used commodity plastics, its adhesion properties are remarkably restricted by its non-polar nature which leads to low wetting properties and, consequently, poor adhesion behavior. ...
The Springback Characteristics of a Porous Tantalum Sheet-Metal

Nebosky, Paul S.; Schmid, Steven R.; Sellés Cantó, Miguel Ángel (American Society of Mechanical Engineers (ASME), 2011)

[EN] This study examines the elastic recovery (springback) of a porous tantalum foam after sheet forming operations. The foam and sheet-like form is applicable to bone ingrowth surfaces on orthopedic implants and is desirable ...