Cellulose acetate nanofibers embedded with AgNPs anchored TiO2 nanoparticles for long term excellent antibacterial applications

2019 ◽  
Vol 207 ◽  
pp. 640-649 ◽  
Author(s):  
Abdul Wahab Jatoi ◽  
Ick Soo Kim ◽  
Qing-Qing Ni
Keyword(s):  
Cellulose Acetate ◽  
Tio2 Nanoparticles ◽  
Anchored Tio2

scholarly journals Novel Surfactant-Free Water Dispersion Technique of TiO2 NPs Using Focused Ultrasound System

Nanomaterials ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 427
Author(s):  
Seon Ae Hwangbo ◽  
Minjeong Kwak ◽  
Jaeseok Kim ◽  
Tae Geol Lee
Keyword(s):  
Tio2 Nanoparticles ◽  
Focused Ultrasound ◽  
Pure Water ◽  
Free Water ◽  
Dispersion Stability ◽  
Renewable Energy Resources ◽  
Water Dispersion ◽  
Dispersion State ◽  
Dispersion Technique

Titanium dioxide (TiO2) nanoparticles are used in a wide variety of products, such as renewable energy resources, cosmetics, foods, packaging materials, and inks. However, large quantities of surfactants are used to prepare waterborne TiO2 nanoparticles with long-term dispersion stability, and very few studies have investigated the development of pure water dispersion technology without the use of surfactants and synthetic auxiliaries. This study investigated the use of focused ultrasound to prepare surfactant-free waterborne TiO2 nanoparticles to determine the optimal conditions for dispersion of TiO2 nanoparticles in water. Under 395–400 kHz and 100–105 W conditions, 1 wt% TiO2 colloids were prepared. Even in the absence of a surfactant, in the water dispersion state, the nanoparticles were dispersed with a particle size distribution of ≤100 nm and did not re-agglomerate for up to 30 days, demonstrating their excellent dispersion stability.

scholarly journals A Stable and Indurative Superhydrophobic Film with Excellent Anti-Bioadhesive Performance for 6061 Al Protection

Materials ◽  
2020 ◽  
Vol 13 (23) ◽  
pp. 5564
Author(s):  
Jie Liu ◽  
Xinwen Zhang ◽  
Ruoyun Wang ◽  
Fei Long ◽  
Lei Liu
Keyword(s):  
Tio2 Nanoparticles ◽  
Strong Support ◽  
Thick Layer ◽  
Superhydrophobic Surfaces ◽  
Harsh Environment ◽  
Promising Candidate ◽  
Environmental Friendliness ◽  
Porous Framework ◽  
The Common

Superhydrophobic surfaces have attracted intensive attention in the antifouling field because of their excellent anti-bioadhesive performance and environmental friendliness. However, promising surfaces have met great challenges of poor mechanical robustness under harsh serving conditions. Herein, an organic-inorganic composite strategy, that the silane-modified TiO2 nanoparticles are compounded into the porous framework provided by the stable and indurative aluminum oxide film, is proposed to address the common serious problem in superhydrophobic surfaces. Different from the traditional superhydrophobic surfaces, this composite film possesses a ~18 μm thick layer which can provide strong support to silane-modified TiO2 nanoparticles. The resulting film can reserve superhydrophobicity to the surface even after a thickness loss of ~15 μm under continuous abrasion. At the same time, the results of the bacterial adhesive tests also verify that the film has the same long-term anti-bioadhesive performance. The film with superhydrophobicity, excellent anti-bioadhesive property, and stable robustness will make it a promising candidate for serving in a harsh environment, and the design concept of this film could be applied to various substrates.

Modelling of long-term photoresponse of bacteriorhodopsin immobilized on cellulose acetate membranes

1996 ◽  
Vol 113 (1) ◽  
pp. 65-71 ◽  
Author(s):  
Vedat Sediroglu ◽  
Adnan Aydemir ◽  
Ufuk Gündüz ◽  
Meral Yücel ◽  
Lemi Türker ◽  
...  
Keyword(s):  
Cellulose Acetate ◽  
Cellulose Acetate Membranes
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