scholarly journals Poly caprolactone/titanium dioxide nanofiber coating on AM50 alloy for biomedical application

2020 ◽  
Author(s):  
Mani Karthega ◽  
Mogan Pranesh ◽  
Chockalingam Poongothai ◽  
Nagarajan Srinivasan
Keyword(s):  
Titanium Dioxide ◽  
Biomedical Application ◽  
Am50 Alloy ◽  
Poly Caprolactone ◽  
Nanofiber Coating

scholarly journals Polyhydroxyoctanoate films reinforced with titanium dioxide microfibers for biomedical application

2021 ◽  
Vol 285 ◽  
pp. 129100
Author(s):  
Ivana Malagurski ◽  
Ruggero Frison ◽  
Anjani K. Maurya ◽  
Antonia Neels ◽  
Boban Andjelkovic ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Biomedical Application

scholarly journals Improvement of Titanium Corrosion Resistance by Coating with Poly-Caprolactone and Poly-Caprolactone/Titanium Dioxide: Potential Application in Heart Valves

2018 ◽  
Vol 20 (suppl 1) ◽  
pp. 126-133 ◽  
Author(s):  
Carolina Cruz Ferreira ◽  
Virgilio Pereira Ricci ◽  
Lucíola Lucena de Sousa ◽  
Neide Aparecida Mariano ◽  
Maria Gabriela Nogueira Campos
Keyword(s):  
Corrosion Resistance ◽  
Titanium Dioxide ◽  
Potential Application ◽  
Heart Valves ◽  
Poly Caprolactone

Surface Modification of Titanium Dioxide Thin Film for ss-DNA Detection

2013 ◽  
Vol 832 ◽  
pp. 124-127 ◽  
Author(s):  
Sharipah Nadzirah ◽  
Uda Hashim
Keyword(s):  
Thin Film ◽  
Titanium Dioxide ◽  
Biomedical Application ◽  
Sol Gel ◽  
Electrical Characterization ◽  
Titanium Butoxide ◽  
Coating Method ◽  
P Type ◽  
Modification Of Titanium ◽  
Electrical Data

This paper studies the Capacitance-Frequency of titanium dioxide (TiO2) thin film-based interdigitated electrodes (IDEs) for ss-DNA immobilization. TiO2thin film was deposited on P-type silicon dioxide (SiO2) (1 0 0) substrates using monoethanolamine (MEA) sol-gel route by spin-coating method. Titanium butoxide was used as a precursor source while ethanol and MEA were used as a disperser and stabilizer respectively. Metal IDEs of aluminium (Al) was deposited on the synthesized films for the electrical characterization. From the electrical data, it proves that the synthesized TiO2thin film is effective and can be used for the synthesis of TiO2thin films with biomedical application.

The Influence of the PCL-T Concentration in PLDLA Membrane

2012 ◽  
Vol 730-732 ◽  
pp. 50-55
Author(s):  
Marcia Adriana Tomaz Duarte ◽  
Larissa Coppini ◽  
C. Lucchesi ◽  
Marcelo Macedo ◽  
Eliana Aparecida De Rezende Duek
Keyword(s):  
Medical Devices ◽  
Biomedical Application ◽  
Cellular Adhesion ◽  
Solvent Casting ◽  
Implantation Time ◽  
Force Microscopy ◽  
Atomic Force ◽  
Copolymer Poly ◽  
Poly Caprolactone

The use of bioabsorbable polymers in biomedical application has increased greatly in recent years due to their good compatibility and bio-reabsorption. To obtain a polymeric material suitable for medical applications, the obtention and characterization of copolymer poly (L-co-DL lactic acid) (PLDLA) with the addition of poly (caprolactone triol) (PCL-T) was studied. PLDLA/PCL-T membranes were prepared by solvent casting in the 100/0, 90/10 and 70/30 (w/w) compositions. The membranes were characterized by Atomic Force Microscopy (AFM), Cellular Adhesion and Energy Dispersed Spectroscopy (EDS). Using MFA it was observed that an addition of PCL-T contributes to rough morphology and greater porosity. Increased cell adhesion on 90/10 and 70/30 membranes compared to 100/0 composition and controls was observed. From these results, it was observed that PCL-T improved cellular adhesion of the PLDLA membrane when compared to membranes without PCL-T. The PLDLA/PCL-T membrane is indicated for use in medical devices which do not require long implantation time, such as support for cell culture, dressings for skin ulceration and guided regeneration in periodontics.

scholarly journals Nano Titanium Dioxide -An Effective Photocatalyst for Emerging Applications

2019 ◽  
Vol 8 (10) ◽  
pp. 4464-4472
Keyword(s):  
Titanium Dioxide ◽  
Biomedical Application ◽  
High Reactivity ◽  
High Catalytic Activity ◽  
Electrochromic Devices ◽  
Titanium Dioxide Nanoparticle ◽  
Photo Catalysis ◽  
Surrounding Environment ◽  
Synthesis Properties ◽  
Nano Titanium Dioxide

Titanium dioxide (TiO2 ) is a widely studied material and exists in three major crystal structures: rutile, brookite and anatase. Due to its advantages in high chemical and thermal stability, non-toxicity, high catalytic activity, resistance to corrosion, and high reactivity under ultraviolet light (<387 nm),it can be used in many applications such as photo catalysis, photovoltaics, sensors, hydrogen generators batteries, self-cleaning, electrochromic devices and also used in some biomedical application for site specific drug delivery . These applications in various fields depends not only on the properties of the TiO2 material but also it involves in modifying TiO2 structure and doping of other element on it which will show adverse impact in application of TiO2 with the surrounding environment. In this review, we are discussing about the synthesis, properties, and applications of titanium dioxide nanoparticle (TiO2 NP) in various fields.

scholarly journals Titanium dioxide nanoparticles enhance thrombosis through triggering the phosphatidylserine exposure and procoagulant activation of red blood cells

2021 ◽  
Vol 18 (1) ◽  
Author(s):  
Yiying Bian ◽  
Han-Young Chung ◽  
Ok-Nam Bae ◽  
Kyung-Min Lim ◽  
Jin-Ho Chung ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Red Blood Cells ◽  
Blood Cells ◽  
Biomedical Application ◽  
Morphological Changes ◽  
Thrombus Formation ◽  
Procoagulant Activity ◽  
Ros Generation ◽  
Potential Health

Abstract Background Expanding biomedical application of anatase titanium dioxide (TiO2) nanoparticles (NPs) is raising the public concern on its potential health hazards. Here, we demonstrated that TiO2 NPs can increase phosphatidylserine (PS) exposure and procoagulant activity of red blood cells (RBCs), which may contribute to thrombosis. Results We conducted in vitro studies using RBCs freshly isolated from healthy male volunteers. TiO2 NPs exposure (≦ 25 μg/mL) induced PS exposure and microvesicles (MV) generation accompanied by morphological changes of RBCs. While ROS generation was not observed following the exposure to TiO2 NPs, intracellular calcium increased and caspase-3 was activated, which up-regulated scramblase activity, leading to PS exposure. RBCs exposed to TiO2 NPs could increase procoagulant activity as measured by accelerated thrombin generation, and enhancement of RBC-endothelial cells adhesion and RBC-RBC aggregation. Confirming the procoagulant activation of RBC in vitro, exposure to TiO2 NPs (2 mg/kg intravenously injection) in rats increased thrombus formation in the venous thrombosis model. Conclusion Collectively, these results suggest that anatase TiO2 NPs may harbor prothrombotic risks by promoting the procoagulant activity of RBCs, which needs attention for its biomedical application.

Studies on the mechanism of printing film-coated tablets containing titanium dioxide in the film by using UV laser irradiation

2009 ◽  
Vol 00 (00) ◽  
pp. 090915102728058-8
Author(s):  
Yoshiteru Kato ◽  
Yasuhiko Nakashima ◽  
Naoki Shino ◽  
Koichi Sasaki ◽  
Akihiro Hosokawa ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Laser Irradiation ◽  
Uv Laser

Development and production experience of the multilayer curtain-coated linerboard of Ji’an PM No. 3,

TAPPI Journal ◽  
2014 ◽  
Vol 13 (2) ◽  
pp. 17-25
Author(s):  
JUNMING SHU ◽  
ARTHAS YANG ◽  
PEKKA SALMINEN ◽  
HENRI VAITTINEN
Keyword(s):  
Titanium Dioxide ◽  
High Speed ◽  
Food Packaging ◽  
Production Efficiency ◽  
Positive Impact ◽  
Low Cost ◽  
Board Structure ◽  
Flexographic Printing ◽  
Curtain Coating ◽  
Coating Formulations

The Ji’an PM No. 3 is the first linerboard machine in China to use multilayer curtain coating technology. Since successful startup at the end of 2011, further development has been carried out to optimize running conditions, coating formulations, and the base paper to provide a product with satisfactory quality and lower cost to manufacture. The key challenges include designing the base board structure for the desired mechanical strength, designing the surface properties for subsequent coating operations, optimizing the high-speed running of the curtain coater to enhance production efficiency, minimizing the amount of titanium dioxide in the coating color, and balancing the coated board properties to make them suitable for both offset and flexographic printing. The pilot and mill scale results show that curtain coating has a major positive impact on brightness, while smoothness is improved mainly by the blade coating and calendering conditions. Optimization of base board properties and the blade + curtain + blade concept has resulted in the successful use of 100% recycled fiber to produce base board. The optical, mechanical, and printability properties of the final coated board meet market requirements for both offset and flexographic printing. Machine runnability is excellent at the current speed of 1000 m/min, and titanium dioxide has been eliminated in the coating formulations without affecting the coating coverage. A significant improvement in the total cost of coated white liner production has been achieved, compared to the conventional concept of using virgin fiber in the top ply. Future development will focus on combining low cost with further quality improvements to make linerboard suitable for a wider range of end-use applications, including frozen-food packaging and folding boxboard.

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