Category: Nanotech
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Fabrication of conductive Ag/AgCl/Ag nanorods ink on Laser-induced graphene electrodes on flexible substrates for non-enzymatic glucose detection
Tafoya, R. R. et al. Morphology and electrical properties of high-speed flexography-printed graphene. Microchim. Acta 189, 123 (2022). Article CAS Google Scholar Xiang, L. et al. Inkjet-printed flexible biosensor based on graphene field effect transistor. IEEE Sens. J. 16, 8359–8364 (2016). CAS Google Scholar Yamada, K., Henares, T. G., Suzuki, K. & Citterio, D. Paper-based…
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Durable, inexpensive electrocatalyst generates clean hydrogen and oxygen from water
Natural clay magadiite containing silicon (Si) was heated in a sealed vessel in a water-based solution containing iron chloride (FeCl3) and nickel chloride (NiCl2) to create a metallic silicate made up of nickel (Ni), iron (Fe) and Si. The metallic silicate was then reduced by adding electrons to metallic silicate atoms with magnesium, salt and…
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Oral delivery a possibility for silica-based nanocarriers for therapeutics
Credit: Monstera Production from Pexels Take a pill, or get a shot? Given the choice, most people would likely go for the former. Ultrasmall fluorescent core-shell hybrid silica nanoparticles—known as Cornell Prime Dots, or C’Dots—are among the nanocarriers for therapeutics that were thought to be viable only by injection, but new Cornell research has shown…
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Researchers develop photoactivatable nanomedicine for the treatment of age-related macular degeneration
Photodynamic therapy (PDT) offers a clinical solution by utilising non-toxic photosensitisers activated by specific wavelengths of light to generate reactive oxygen species (ROS), which can damage and obliterate neovascularisation. Credit: The University of Hong Kong Researchers at the LKS Faculty of Medicine of the University of Hong Kong (HKUMed), and collaborators from the Zhongshan Ophthalmic…
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The ‘jigglings and wigglings of atoms’ reveal key aspects of COVID-19 virulence evolution
Illustration of multiple viruses in a fluid turbulent environment interacting with human cells. Credit: Computational Biophysics Group—Auburn University Richard Feynman famously stated, “Everything that living things do can be understood in terms of the jigglings and wigglings of atoms.” This week, Nature Nanotechnology features a study that sheds new light on the evolution of the…
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Light activated nanomedicine ushers in a new era for age-related macular degeneration therapy
Nov 27, 2023 (Nanowerk News) Researchers at the LKS Faculty of Medicine of the University of Hong Kong (HKUMed), and collaborators from the Zhongshan Ophthalmic Centre of Sun Yat-sen University, Guangzhou, have developed a light-activatable prodrug nanomedicine for age-related macular degeneration (AMD) therapy. Through the intravenous injection of the nanomedicine and application of light irradiation…
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The jigglings and wigglings of atoms reveal key aspects of COVID-19 virulence evolution
Nov 27, 2023 (Nanowerk News) Richard Feynman famously stated, “Everything that living things do can be understood in terms of the jigglings and wigglings of atoms.” This week, Nature Nanotechnology (“Single-molecule force stability of the SARS-CoV-2–ACE2 interface in variants-of-concern”) features a groundbreaking study that sheds new light on the evolution of the coronavirus and its…
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Injectable nanoscale stimulator transforms spinal cord therapy and motor function recovery
Nov 27, 2023 (Nanowerk News) A Johns Hopkins materials scientist and collaborators have developed a tiny device that may hold promise for restoring mobility to those with lower limb paralysis, a condition affecting approximately 1.4 million Americans. Key Takeaways New spinal stimulator, injectable and nanoscale, promises significant advances in treating lower limb paralysis. Designed for…
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Oral delivery a possibility for silica-based C’Dots
Nov 27, 2023 (Nanowerk News) Take a pill, or get a shot? Given the choice, most people would likely go for the former. Key Takeaways Cornell researchers have found a way to potentially administer C’Dots – ultrasmall fluorescent core-shell hybrid silica nanoparticles – orally, which was previously thought possible only via injection. This development could…
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CRISPR enhanced nanotweezers for ultra-precise DNA manipulation and detection
Nov 27, 2023 (Nanowerk News) Since the concept of optical trapping was first proposed in the 1960s and 1970s by Arthur Ashkin, researchers have pursued innovative techniques to precisely manipulate and analyze individual biomolecules like DNA. Such capabilities would revolutionize genetics, molecular biology, and medicine by enhancing our understanding of biological systems and enabling ultra-sensitive…