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Archive for the ‘nanotechnology’ category: Page 21

May 7, 2024

D-peptide-magnetic nanoparticles fragment tau fibrils and rescue behavioral deficits in a mouse model of Alzheimer’s disease

Posted by in categories: biotech/medical, nanotechnology, neuroscience

A new peptide-carrying magnetic nanoparticle described in Science Advances has resolved both biological and behavioral symptoms in mouse models of Alzheimer’s disease.


A short peptide disassembles stable pathogenic tau fibrils of Alzheimer’s disease.

May 6, 2024

Scientists create vaccine with potential to protect against future coronaviruses

Posted by in categories: biotech/medical, nanotechnology

Ohh nice! New vaccine science it seems though I’m not familiar with vaccines, this does seem like a novel approach. It’s kinda future proof to train the immune system to target proteins that are shared across all coronavirus’ I’m hoping it provides, as do they, that it provides a better solution than current vaccines.


The vaccine is made by attaching harmless proteins from different coronaviruses to minuscule nanoparticles that are then injected to prime the body’s defences to fight the viruses should they ever invade.

Because the vaccine trains the immune system to target proteins that are shared across many different types of coronavirus, the protection it induces is extremely broad, making it effective against known and unknown viruses in the same family.

Continue reading “Scientists create vaccine with potential to protect against future coronaviruses” »

May 5, 2024

Engineering an Escherichia coli strain for production of long single-stranded DNA

Posted by in categories: biotech/medical, engineering, nanotechnology

Excellent paper wherein Shen et al.


Abstract. Long single-stranded DNA (ssDNA) is a versatile molecular reagent with applications including RNA-guided genome engineering and DNA nanotechnology, yet its production is typically resource-intensive. We introduce a novel method utilizing an engineered Escherichia coli ‘helper’ strain and phagemid system that simplifies long ssDNA generation to a straightforward transformation and purification procedure. Our method obviates the need for helper plasmids and their associated contamination by integrating M13mp18 genes directly into the E. coli chromosome. We achieved ssDNA lengths ranging from 504 to 20 724 nt with titers up to 250 μg/l following alkaline lysis purification. The efficacy of our system was confirmed through its application in primary T-cell genome modifications and DNA origami folding. The reliability, scalability and ease of our approach promise to unlock new experimental applications requiring large quantities of long ssDNA.

May 5, 2024

Revolutionizing Industries: Graphene’s Nanoscale Innovation

Posted by in categories: nanotechnology, robotics/AI

Center for natural and artificial intelligence.

May 3, 2024

Nanostructured copper surface shows potential for transparent, antimicrobial surfaces in touch displays

Posted by in category: nanotechnology

The interest in antimicrobial solutions for personal and multi-user touch screens, such as tablets and mobile devices, has grown in recent years. Traditional methods like sprayable alcohols or wipes are not ideal for these delicate displays. Antimicrobial coatings applied directly to the glass are a promising alternative, but only if they are transparent and long-lasting.

May 3, 2024

Nanotubes, nanoparticles and antibodies detect tiny amounts of fentanyl

Posted by in categories: biotech/medical, chemistry, nanotechnology

A research team at the University of Pittsburgh led by Alexander Star, a chemistry professor in the Kenneth P. Dietrich School of Arts and Sciences, has developed a fentanyl sensor that is six orders of magnitude more sensitive than any electrochemical sensor for the drug reported in the past five years. The portable sensor can also tell the difference between fentanyl and other opioids.

May 2, 2024

Nano-drugs hitching a ride on bacteria could help treat pancreatic cancer

Posted by in categories: biotech/medical, nanotechnology

Many pancreatic tumors are like malignant fortresses, surrounded by a dense matrix of collagen and other tissue that shields them from immune cells and immunotherapies that have been effective in treating other cancers. Employing bacteria to infiltrate that cancerous fortification and deliver these drugs could aid treatment for pancreatic cancer, according to newly published findings from a team of University of Wisconsin–Madison researchers.

May 2, 2024

2008-jungmann-dna-nano-synth-bio.pdf

Posted by in categories: bioengineering, biotech/medical, nanotechnology

From DNA nanotechnology to synthetic biology.


Shared with Dropbox.

May 1, 2024

New research reveals terahertz waves’ impact on dynamics of nanoconfined water molecules

Posted by in category: nanotechnology

In a new discovery, researchers have revealed novel insights into the behavior of water molecules confined within nanostructures. Their study, published in Science Advances on April 24, delves into how terahertz (THz) waves influence the dynamics of water molecules confined in two-dimensional (2D) spaces within nanoresonators.

Apr 30, 2024

Discovery of uranium-contaminated soil purification material without secondary environmental pollution

Posted by in categories: chemistry, economics, engineering, health, nanotechnology, nuclear energy, sustainability

Nuclear energy has long been regarded as a next-generation energy source, and major countries around the world are competing to secure cutting-edge technologies by leveraging the high economic efficiency and sustainability of nuclear power. However, uranium, which is essential for nuclear power generation, has serious implications for both soil ecosystems and human health.

Despite being a key radioactive material, uranium poses significant health risks due to its chemical toxicity to the kidneys, bones, and cells. As a result, both the U.S. Environmental Protection Agency and the World Health Organization recommend allowing and advocating for uranium concentrations in wastewater to be below 30 μg/L.

The Korea Institute of Civil Engineering and Building Technology (KICT) has conducted research on a nano-material-based adsorption process to efficiently remove uranium wastewater extracted from actual radioactive-contaminated soil. They have also proposed its applicability to prevent secondary environmental pollutions.

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