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Solvent Selection as a Key Factor in the Performance of Semitransparent Heterojunctions Composed of Hydrogenated Nanotubes and Bismuth Sulfides.
ACS Appl Mater Interfaces
January 2025
Centre for Plasma and Laser Engineering, Institute of Fluid-Flow Machinery, Polish Academy of Sciences, 14 Fiszera Street, 80-231 Gdańsk, Poland.
Research on titanium nanotubes modified with metal sulfides, particularly bismuth sulfide (BiS), aims to create heterostructures that efficiently absorb sunlight and then separate photogenerated charge carriers, thereby enhancing the energy conversion efficiency. This study shows a key role of solvent used for sulfide and bismuth salt solutions used during successive ionic layer adsorption and reaction (SILAR) onto the morphology, structure, and photoresponse of the heterojunction where one element is represented by semitransparent titania nanotubes (gTiNT) and the second is BiS. Using 2-methoxyethanol and methanol during SILAR, results in remarkably photoactive 3D heterostructure and recorded photocurrents were 44 times higher compared to bare titania nanotubes.
View Article and Find Full Text PDFDifferential expression of osteoblast-like cells on self-organized titanium dioxide nanotubes.
J Dent Sci
December 2024
Division for Globalization Initiative, Liaison Center for Innovative Dentistry, Tohoku University Graduate School of Dentistry, Sendai, Japan.
Background/purpose: Titanium dioxide nanotube (TNT) structures have been shown to enhance the early osseointegration of dental implants. Nevertheless, the optimal nanotube diameter for promoting osteogenesis remains unclear due to variations in cell types and manufacture of nanotubes. This study aimed to evaluate the differences in MC3T3-E1 and Saos-2 cells behavior on nanotubes of varying diameters.
View Article and Find Full Text PDFA novel electrochemical biosensor based on TiO nanotube array films for highly sensitive detection of exosomes.
Talanta
January 2025
Department of Chemistry, Yanbian University, Yanji, 133002, Jilin, China. Electronic address:
Exosomes have emerged as a powerful biomarker for early cancer diagnosis, however, accurately detecting cancer-derived exosomes in biofluids remains a crucial challenge. In this study, we present a novel label-free electrochemical biosensor utilizing titanium dioxide nanotube array films (TiONTAs) for the sensitive detection of exosomes in complex biological samples. This innovative biosensor takes advantage of the excellent electrochemical properties of TiONTAs and their specific interactions with the phosphate groups of exosomes.
View Article and Find Full Text PDFSuper hydrophilic and super oleophobic carbon nanotube/TiO composite membranes for efficient separation of algal-derived oil/water emulsions.
Colloids Surf B Biointerfaces
December 2024
Department of Chemical Technologies, Iranian Research Organization for Science and Technology (IROST), Tehran, Iran.
The separation of oil from microalgae aqueous emulsions is a critical step in producing algal-derived biofuels and nutraceuticals. This study presents the development of super hydrophilic and super oleophobic composite membranes to efficiently separate algal oil from oil/water emulsions. Carbon nanotubes (CNTs) were functionalized with polydopamine (PDA), polyethylene glycol (PEG), and titanium dioxide (TiO) nanoparticles and coated onto a mixed cellulose ester (MCE) substrate to fabricate the composite membranes.
View Article and Find Full Text PDFElectrophoretic Deposition of Gentamicin Into Titania Nanotubes Prevents Evidence of Infection in a Mouse Model of Periprosthetic Joint Infection.
J Orthop Res
December 2024
Department of Orthopedic Surgery, Rush University Medical Center, Chicago, Illinois, USA.
Periprosthetic joint infection (PJI) is a leading cause and major complication of joint replacement failure. As opposed to standard-of-care systemic antibiotic prophylaxis for PJI, we developed and tested titanium femoral intramedullary implants with titania nanotubes (TNTs) coated with the antibiotic gentamicin and slow-release agent chitosan through electrophoretic deposition (EPD) in a mouse model of PJI. We hypothesized that these implants would enable local gentamicin delivery to the implant surface and surgical site, effectively preventing bacterial colonization.
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