The authors developed new material based upon polytetrafluoroethylene (Teflon) with nanostructured metal and ceramic coatings. The task was formulated to study integrating potential of different chemical composition surfaces of intraosseous implants using Teflon with the mentioned above coatings as the experimental model. In experiments on rats using histomorphologic criterion there were compared implants from Teflon with Ti-, Ti-Ca-P-C-O-N- and Ti-Ca-Mn-K-C-O-N-coatings and Teflon without coating as the group for reference. It was shown that new experimental implant model based upon Teflon with different nanostructured coatings opened the possibility to profound investigation of interface contact substrate of metal (ceramic) surface with surrounding tissue structures. Optimal results upon the osteointegration criterion were received with Teflon + Ti-Ca-P-C-O-N-coating.
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Colloids Surf B Biointerfaces
February 2025
Fisheries Department, Faculty of Marine Sciences, University of Hormozgan, Bandar Abbas, Iran. Electronic address:
Based on current research, a highly effective, completely biocompatible, and eco-friendly antifouling method was developed. Sepia pharaonis was used to synthesize melanin nanoparticles from its ink. To improve the anti-biofouling characteristics, CuO nanoparticles were synthesized from Padina sp.
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September 2024
Physiology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, IND.
Mikrochim Acta
October 2024
Laboratory of Bioanalysis, Institute of Biochemistry & Biophysics, University of Tehran, Tehran, Iran.
A low-cost, lab-made polytetrafluoroethylene micro-cell, equipped with three electrodes, wasd eveloped for the impedimetric detection of SARS-CoV-2. The gold working electrode was modified with a double-ended thiolated poly-adenine probe, which was conjugated with magnetic Fe₃O₄@Au nanoparticles (FeO@Au-(S-polyA-S)-Au). After the loop-mediated isothermal amplification (LAMP) of viral RNA, the single-guide RNA (sgRNA), specifically bound to the SARS-CoV-2 target sequence, activates Cas12a.
View Article and Find Full Text PDFSmall
October 2024
Centre of Micro/Nano Manufacturing Technology (MNMT-Dublin), School of Mechanical & Materials Engineering, University College Dublin, Dublin, D04 V1W8, Ireland.
Nanoimprinting large-area structures, especially high-density features like meta lenses, poses challenges in achieving defect-free nanopatterns. Conventional high-resolution molds for nanoimprinting are often expensive, typically constructed from inorganic materials such as silicon, nickel (Ni), or quartz. Unfortunately, replicated nanostructures frequently suffer from breakage or a lack of definition during demolding due to the high adhesion and friction at the polymer-mold interface.
View Article and Find Full Text PDFInt J Biol Macromol
June 2024
School of Environmental and Chemical Engineering, Jiangsu Ocean University, Lianyungang 222005, China. Electronic address:
Poly (vinyl alcohol) (PVA) hydrogel showed potential applications in bioengineering and wearable sensors fields. It is still a huge challenge to prepare highly adhesive yet strong poly (vinyl alcohol) hydrogel with good biocompatibility. Herein, we prepared a highly self-adhesive and strong poly (vinyl alcohol)/tannic acid@cellulose nanocrystals (PVA/TA@CNCs) composite hydrogel using TA@CNCs as functional nanofiller via facile freezing-thawing method.
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