Fibronectin Coating on Implant Material Surface Attracted Both Osteoblasts and Bacteria

2019 ◽  
Vol 48 (8) ◽  
pp. 764-767
Author(s):  
Xinnan Cui ◽  
Yu Hoshino ◽  
Yoshiko Miura
Keyword(s):  
Material Surface ◽  
Implant Material ◽  
Fibronectin Coating

Development of Novel Implant Material Surface with Controllable Antibacterial Properties

Denki Kagaku ◽  
2021 ◽  
Vol 89 (4) ◽  
pp. 346-352
Author(s):  
Yusuke TSUTSUMI ◽  
Masaya SHIMABUKURO ◽  
Harumi TSUTSUMI ◽  
Takao HANAWA
Keyword(s):  
Antibacterial Properties ◽  
Material Surface ◽  
Implant Material

Bioactive and Antibacterial Ag-AgCl-TiO2 Coating on Titanium Implants

2016 ◽  
Vol 852 ◽  
pp. 1213-1219 ◽  
Author(s):  
Tian Tian ◽  
Liu Hui ◽  
Gu Ming Jun ◽  
Jin Ying
Keyword(s):  
Bacterial Adhesion ◽  
Antibacterial Property ◽  
Titanium Implants ◽  
Material Surface ◽  
X Ray Diffraction ◽  
E Coli ◽  
Implant Material ◽  
Titanium Substrates ◽  
Soaking Test

In this work, Ag-AgCl-TiO2 coating was fabricated on titanium substrates to obtain an implant material having excellent antibacterial property and bioactivity. The coating was investigated by scanning electron microscopy and X-ray diffraction. The bioactivity of coatings was examined by simulated body fluid soaking test. To verify the susceptibility of implant material surface to bacterial adhesion, S. aureus (Sau), E. coli (Eco), K. pneumoniae (Kpn), P. Aeruginosa (Pae), four types of major pathogen were chosen for in vitro antibacterial analyses. The results showed that Ag-AgCl-TiO2 coating had excellent antibacterial property and bioactivity.

Modification of implant material surface properties by means of oxide nano-structured coatings deposition

2014 ◽  
Vol 310 ◽  
pp. 174-179 ◽  
Author(s):  
Vladimir Safonov ◽  
Anna Zykova ◽  
Jerzy Smolik ◽  
Renata Rogowska ◽  
Vladimir Lukyanchenko ◽  
...  
Keyword(s):  
Surface Properties ◽  
Material Surface ◽  
Implant Material

Suppression of γ’ Precipitation in a Laser-Melted Nickel-Base Alloy

1977 ◽  
Vol 35 ◽  
pp. 270-271
Author(s):  
J. M. Walsh ◽  
J. C. Whittles ◽  
B. H. Kear ◽  
E. M. Breinan
Keyword(s):  
Cooling Rate ◽  
Base Alloy ◽  
Material Surface ◽  
Intimate Contact ◽  
Absorbed Power ◽  
Perfect Contact ◽  
Nickel Base ◽  
Rapidly Solidified ◽  
Limiting Case ◽  
The Heat Transfer Coefficient

Conventionally cast γ’ precipitation hardened nickel-base superalloys possess well-defined dendritic structures and normally exhibit pronounced segregation. Splat quenched, or rapidly solidified alloys, on the other hand, show little or no evidence for phase decomposition and markedly reduced segregation. In what follows, it is shown that comparable results have been obtained in superalloys processed by the LASERGLAZE™ method.In laser glazing, a sharply focused laser beam is traversed across the material surface at a rate that induces surface localized melting, while avoiding significant surface vaporization. Under these conditions, computations of the average cooling rate can be made with confidence, since intimate contact between the melt and the self-substrate ensures that the heat transfer coefficient is reproducibly constant (h=∞ for perfect contact) in contrast to the variable h characteristic of splat quenching. Results of such computations for pure nickel are presented in Fig. 1, which shows that there is a maximum cooling rate for a given absorbed power density, corresponding to the limiting case in which melt depth approaches zero.

Microstructures of Laser Processed Fe-Cr Surface Alloys

1981 ◽  
Vol 39 ◽  
pp. 328-329
Author(s):  
P. A. Molian ◽  
K. H. Khan ◽  
W. E. Wood
Keyword(s):  
Cooling Rate ◽  
Pure Iron ◽  
Continuous Wave ◽  
Laser Surface ◽  
Material Surface ◽  
Constitution Diagram ◽  
Incident Power ◽  
Surface Alloying ◽  
Laser Surface Alloying ◽  
Spot Diameter

In recent years, the effects of chromium on the transformation characteristics of pure iron and the structures produced thereby have been extensively studied as a function of cooling rate. In this paper, we present TEM observations made on specimens of Fe-10% Cr and Fe-20% Cr alloys produced through laser surface alloying process with an estimated cooling rate of 8.8 x 104°C/sec. These two chromium levels were selected in order to study their phase transformation characteristics which are dissimilar in the two cases as predicted by the constitution diagram. Pure iron (C<0.01%, Si<0.01%, Mn<0.01%, S=0.003%, P=0.008%) was electrodeposited with chromium to the thicknesses of 40 and 70μm and then vacuum degassed at 400°F to remove the hydrogen formed during electroplating. Laser surface alloying of chromium into the iron substrate was then performed employing a continuous wave CO2 laser operated at an incident power of 1200 watts. The laser beam, defocussed to a spot diameter of 0.25mm, scanned the material surface at a rate of 30mm/sec, (70 ipm).

Selection of Wear Resistive Nano coating in En8 Steel

2019 ◽  
Vol 1 (2) ◽  
pp. 73-80
Author(s):  
Ilangkumaran M ◽  
Tiruvenkadam N ◽  
Saranya M ◽  
Thulsidharan R
Keyword(s):  
Mild Steel ◽  
Mechanical Action ◽  
Medium Carbon Steel ◽  
Solid Surfaces ◽  
Material Surface ◽  
Multi Criteria Decision Making ◽  
Sliding Surface ◽  
Medium Carbon ◽  
Nano Coating ◽  
Selection Of

Where is the abrasive or gradual removal of materials at solid surfaces? It is caused due to the interaction between the sliding surface by mechanical action. The abrasive wears can be recognised as scratches or grooves. To enhance the wear resistance suitable nanocoating is applied on the material surface for better tribological properties such as hardness and toughness. Wear resistant nanocoating is used to reduce or eradicate wear to extend the lifetime of the EN8 steel. EN8 is unalloyed medium carbon steel with better mechanical properties than mild steel and also readily machinable in any condition. The nanocoating materials such as Al2O3, TiO2, SiC, ZrO2, WS2, Si3N4 etc., are used to reduce wear and to enhance hardness and toughness on mild steel through various nanocoating techniques. This paper deals with selection of suitable nanocoating material through AHP (Analytical hierarchal process) - a multi-criteria decision-making method.

Tropes of Desire

2018 ◽  
Author(s):  
Lloyd Whitesell
Keyword(s):  
Material Surface ◽  
The Everyday

This chapter investigates how sound and image can be styled to create allure, encouraging particular frames of mind in the viewer. Three such frames are important to glamour’s effect: first, fetishism or captive attention, which involves a fascination with display, senses captivated by a material surface that offers itself up to extended enjoyment; second, the transfiguration of the everyday, through presenting images of impossible beauty and desirability but also through weaving fantasies of escape and transformation; and third, the preservation of distance between spectators and the object of their fascination, using devices such as restraint and remoteness. Finally, anticonsumerist critiques of glamour are evaluated alongside counterarguments upholding glamour’s transformative and sustaining potential.

scholarly journals Special Issue: Biointerface Coatings for Biomaterials and Biomedical Applications

Coatings ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 423
Author(s):  
Hsien-Yeh Chen ◽  
Peng-Yuan Wang
Keyword(s):  
Surface Properties ◽  
Material Science ◽  
Biomedical Applications ◽  
Material Surface ◽  
Special Issue

The success of recent material science and applications in biotechnologies should be credited to developments of malleable surface properties, as well as the adaptation of conjugation reactions to the material surface [...]

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