scholarly journals The Potential of a Surface-Modified Titanium Implant with Tetrapeptide for Osseointegration Enhancement

2021 ◽  
Vol 11 (6) ◽  
pp. 2616
Author(s):  
Syamsiah Syam ◽  
Chia-Jen Wu ◽  
Wen-Chien Lan ◽  
Keng-Liang Ou ◽  
Bai-Hung Huang ◽  
...  
Keyword(s):  
Titanium Implant ◽  
Dip Coating ◽  
Force Microscopy ◽  
Panoramic Imaging ◽  
Atomic Force ◽  
Diphenyltetrazolium Bromide ◽  
L929 Fibroblast ◽  
Surface Modified ◽  
Dip Coating Technique ◽  
Contact Angle Analysis

In this study, the innovative dip-coating technique treated titanium (IDCT-Ti) implant with tetrapeptide Gly-Arg-Gly-Asp (GRGD) coating was investigated for its potential to enhance osseointegration. The L929 fibroblast cells were cultured in different concentrations of the GRGD (1%, 2%, and 5%). The cell viability was assessed through 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide (MTT) assay and live/dead staining. The surface topography and nano-indentation were analyzed by atomic force microscopy. The hemocompatibility was evaluated via field-emission scanning electron microscopy, while contact angle analysis was detected by a goniometer. Radiograph evaluation was determined by panoramic imaging. It was found that the cell growth increased and had a survival rate of more than 70% in 1% GRGD. The mortality of L929 increased with the higher concentration of GRGD. The IDCT-Ti coated with 1% GRGD showed a nano-surface with a Young’s modulus that was similar to human cortical bone, and it displayed greater red blood cell accumulations with abundant fibrin formation. As regards the wettability, the IDCT-Ti coated with 1% GRGD was lower than the SLA (sandblasted, large-grit, and acid-etched) treated implant. The X-ray image exhibited no bone loss around the implant at six months after placement. As a result, this study suggests that the IDCT-Ti implant, coated with 1% GRGD, has a tremendous likeliness to enhance osseointegration.

Fabrication of Uniformly Growing Graphene Films via the Dip-Coating Method

2013 ◽  
Vol 320 ◽  
pp. 185-189
Author(s):  
Juan Yang ◽  
Hong Bo Sun ◽  
Dan Li
Keyword(s):  
Sheet Resistance ◽  
Photoelectron Spectroscopy ◽  
Dip Coating ◽  
X Ray ◽  
Force Microscopy ◽  
Atomic Force ◽  
Graphene Films ◽  
Coating Method ◽  
Dip Coating Method ◽  
Dip Coating Technique

The graphene (GE) films were fabricated in this paper through the deposition of graphene oxide (GO) sheets onto the quartz slide by means of dip-coating technique, followed by thermal annealing. The growth process and transmittance of the film were monitored by ultraviolet and visible spectrophotometer (UV-Vis), the surface morphology and structure were investigated by Atomic force microscopy (AFM), Scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS) and Raman. The sheet resistance of the film was also tested and results showed that the sheet resistance is about 60 kΩ-1and the transmittance is as high as 81 % (at 550 nm).

Preparation and Characterization of SiO2-Coated TiO2 Thin Films via Sol-Gel Dip Coating Technique

2015 ◽  
Vol 1109 ◽  
pp. 148-152
Author(s):  
A.K.M. Muaz ◽  
U. Hashim ◽  
Sharipah Nadzirah ◽  
M. Wesam Al-Mufti ◽  
Fatimah Ibrahim ◽  
...  
Keyword(s):  
Thin Films ◽  
Sol Gel ◽  
Dip Coating ◽  
Spherical Particles ◽  
Thickness Variation ◽  
Morphological Effect ◽  
Force Microscopy ◽  
Atomic Force ◽  
Dip Coating Technique

In the present research, nanocrystalline TiO2thin films have been prepared via a sol-gel method using Ti {OCH(CH3)2}4act as a precursor. The morphological effect of sets of as-deposited and annealed samples (100, 300, 500 and 700°C for 1 hour) and thickness variation on the structural properties were investigated by Atomic Force Microscopy (AFM) measurements. The observation showed that the size of grain increases with film thickness, indicating that the size of the particles in the films can be effectively controlled by changing the temperature of thermal treatment. AFM topology images of the as-deposited and annealed TiO2films at 100 and 300°C indicates the films are rather smooth, compact, bulky, not uniform and column-like structure. TiO2thin films annealed at 500 and 700°C showed homogenous morphology surface with regular size of spherical particles.

On the Properties of Yttria-Stabilized Zirconia Thin Films Prepared by Sol-Gel Method

1970 ◽  
Vol 17 (2) ◽  
pp. 191-196
Author(s):  
Artūras ŽALGA ◽  
Brigita ABAKEVIČIENĖ ◽  
Aleksej ŽARKOV ◽  
Aldona BEGANSKIENĖ ◽  
Aivaras KAREIVA ◽  
...  
Keyword(s):  
Thin Films ◽  
Sol Gel ◽  
Xrd Analysis ◽  
Dip Coating ◽  
X Ray Diffraction ◽  
Force Microscopy ◽  
Angle Measurements ◽  
Atomic Force ◽  
Contact Angle Measurements ◽  
Dip Coating Technique

The synthesis of nanostructured films of 20 mol% Y2O3 stabilized ZrO2 on corundum (Al2O3) substrates was performed from different sols using dip-coating technique. All obtained samples were repeatedly annealed at 800 °C temperature after each dipping procedure and fully characterized by X-ray diffraction (XRD) analysis. XRD data exhibited that at 800 °C temperature nano-sized Y0.2Zr0.8O2 thin films with cubic (Fm-3m) crystal structure have been formed. The morphological features of obtained coatings were investigated by scanning electron microscopy (SEM) and atomic force microscopy (AFM). The surface tension and hydrophility of the synthesized films were determined by contact angle measurements (CAM).http://dx.doi.org/10.5755/j01.ms.17.2.491

Observation of a Polystyrene Surface Modified by Ultrasonic Scratching Using Atomic Force Microscopy

1999 ◽  
Vol 38 (Part 1, No. 6B) ◽  
pp. 3936-3939 ◽  
Author(s):  
Futoshi Iwata ◽  
Tarou Matsumoto ◽  
Ryuhei Ogawa ◽  
Akira Sasaki
Keyword(s):  
Atomic Force Microscopy ◽  
Force Microscopy ◽  
Polystyrene Surface ◽  
Atomic Force ◽  
Surface Modified

Surface diagnostics for scale analysis

2004 ◽  
Vol 49 (2) ◽  
pp. 183-190 ◽  
Author(s):  
S. Dunn ◽  
S. Impey ◽  
C. Kimpton ◽  
S.A. Parsons ◽  
J. Doyle ◽  
...  
Keyword(s):  
Adhesion Force ◽  
Polymer Materials ◽  
Rapid Screening ◽  
Force Measurements ◽  
Energy Materials ◽  
Force Microscopy ◽  
Atomic Force ◽  
Surface Modified ◽  
Surface Diagnostics ◽  
Microscopy Techniques

Stainless steel, polymethylmethacrylate and polytetrafluoroethylene coupons were analysed for surface topographical and adhesion force characteristics using tapping mode atomic force microscopy and force-distance microscopy techniques. The two polymer materials were surface modified by polishing with silicon carbide papers of known grade. The struvite scaling rate was determined for each coupon and related to the data gained from the surface analysis. The scaling rate correlated well with adhesion force measurements indicating that lower energy materials scale at a lower rate. The techniques outlined in the paper provide a method for the rapid screening of materials in potential scaling applications.

scholarly journals An investigation of surface properties, local elastic modulus and interaction with simulated pulmonary surfactant of surface modified inhalable voriconazole dry powders using atomic force microscopy

RSC Advances ◽  
2016 ◽  
Vol 6 (31) ◽  
pp. 25789-25798 ◽  
Author(s):  
Sumit Arora ◽  
Michael Kappl ◽  
Mehra Haghi ◽  
Paul M. Young ◽  
Daniela Traini ◽  
...  
Keyword(s):  
Atomic Force Microscopy ◽  
Elastic Modulus ◽  
Surface Properties ◽  
Pulmonary Surfactant ◽  
Dry Powders ◽  
Force Microscopy ◽  
Atomic Force ◽  
Surface Modified ◽  
Spray Dried

l-Leucine modified voriconazole spray dried micropartcles.

Topography analysis of grit-blasted and grit-blasted-acid-etched titanium implant surfaces using multi-scale measurements and multi-parameter statistics

2008 ◽  
Vol 23 (10) ◽  
pp. 2704-2713 ◽  
Author(s):  
Guruprasad Sosale ◽  
S. Adam Hacking ◽  
Srikar Vengallatore
Keyword(s):  
Atomic Force Microscopy ◽  
Full Range ◽  
Titanium Implant ◽  
Titanium Implants ◽  
Statistical Parameters ◽  
Grit Blasting ◽  
Force Microscopy ◽  
Topographic Features ◽  
Atomic Force ◽  
Bone Response

Micro texturing of titanium implant surfaces is commonly used to enhance fixation by osseointegration, and devising robust and specific correlations between surface topographic features and implant performance is an area of active current research. In this context, we present a detailed analysis of the topographies of titanium surfaces prepared by grit blasting (GB) and grit blasting followed by acid etching (GB+AE) at two different imaging scales over a full range of statistical parameters. The surfaces were characterized using white light interferometry and atomic force microscopy, and the topographic images were processed to extract the amplitude, spatial, hybrid, and functional parameters of the surface. Although GB+AE surfaces are known to elicit significantly higher bone response than GB surfaces, the topographies differed by less than 20% (over all parameters) when averaged over 242 × 181 μm interferometric images. In contrast, measurements over smaller 25 × 25 μm areas obtained using high-resolution atomic force microscopy indicated that the GB+AE surfaces exhibit a 26% increase in root-mean-square (rms) roughness, a 63% increase in rms slope, a 75% increase in the curvature of the summits, and a 21% increase in surface area over GB surfaces. These results constitute the first identification of rms slope and summit curvatures as important topographic variables that must be considered in ongoing efforts to correlate surface topography with the performance of endosseous titanium implants.

Porous SiO2/TiO2 Bilayer Antireflection Coatings with Self-Cleaning Capacity

2011 ◽  
Vol 233-235 ◽  
pp. 2970-2974 ◽  
Author(s):  
Ruo Yu Chen ◽  
Jian Wu Wang ◽  
Hong Ning Wang ◽  
Wei Yao ◽  
Jing Zhong
Keyword(s):  
Methyl Orange ◽  
Mechanical Strength ◽  
Sol Gel ◽  
Dip Coating ◽  
Antireflection Coatings ◽  
Force Microscopy ◽  
Atomic Force ◽  
Coating Method ◽  
Self Cleaning ◽  
Dip Coating Method

The porous SiO2/TiO2bilayer antireflection coatings with self-cleaning capacity have been prepared by a sol-gel dip-coating method, the surfactant template, Pluronic F123 (PF123) was added to the sol as a pore generator. The performances of the coatings were analyzed with ultraviolet visible spectrophotometer (UV-Vis), scanning electron microscope (SEM) and atomic force microscopy (AFM). The self-cleaning function of coatings was evaluated by means of photocatalytic degradation of methyl orange in aqueous solution, and mechanical strength of the coatings has also been studied. The results indicate that the average transmittance of porous SiO2/TiO2coating increases by 6% as compared to uncoated glass, the coating has a small particle size, a porous structure and a low roughness. After illuminated by ultraviolet light for 3 h, the 5 mg/L methyl orange can be degraded by 56.5%. In addition, the coating has an excellent mechanical strength.

Interaction of salicylic acid with zirconium diphosphate and its reactivity toward uranium (VI)

2018 ◽  
Vol 106 (4) ◽  
pp. 291-300
Author(s):  
Nidia García-González ◽  
Eduardo Ordoñez-Regil ◽  
María Guadalupe Almazán-Torres ◽  
Eric Simoni
Keyword(s):  
Salicylic Acid ◽  
Photoelectron Spectroscopy ◽  
Room Temperature ◽  
Analytical Techniques ◽  
Batch Method ◽  
Sorption Data ◽  
X Ray ◽  
Force Microscopy ◽  
Atomic Force ◽  
Surface Modified

AbstractThe interaction of salicylic acid with zirconium diphosphate surface and its reactivity toward uranium (VI) was investigated. The interaction of salicylic acid with zirconium diphosphate was firstly studied using several analytical techniques including atomic force microscopy, scanning electron microscopy and X-ray photoelectron spectroscopy. The sorption of uranium (VI) onto surface-modified zirconium diphosphate was evaluated by the classical batch method at room temperature. This study showed that the uranium (VI) sorption onto zirconium diphosphate is influenced by the presence of salicylic acid. A fluorescence spectroscopy study revealed the presence of a uranyl specie onto the modified solid surface. The spectroscopy results were then used to restrain the modeling of experimental sorption data, which are interpreted in terms of a constant capacitance model using the FITEQL code. The results indicated that interaction between the uranium (VI) and the surface of zirconium diphosphate modified with salicylic acid leads to the formation of a ternary surface complex.

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