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Archive for the ‘nanotechnology’ category: Page 7

Mar 2, 2024

Researchers demonstrate 3D nanoscale optical disk memory with petabit capacity

Posted by in categories: economics, information science, life extension, nanotechnology, robotics/AI

The most popular words of 2023 were recently released, with AI Large Language Model (LLM) unquestionably topping the list. As a front-runner, ChatGPT also emerged as one of the international buzzwords of the year. These disruptive innovations in AI owe much to big data, which has played a pivotal role. Yet, AI has simultaneously presented new opportunities and challenges to the development of big data.

High-capacity data storage is indispensable in today’s digital economy. However, major storage devices like and semiconductor flash devices face limitations in terms of cost-effectiveness, durability, and longevity.

Optical data storage offers a promising green solution for cost-effective and long-term data storage. Nonetheless, optical data storage encounters a fundamental limitation in the spacing of adjacent recorded features, owing to the optical diffraction limit. This physical constraint not only impedes the further development of direct laser writing machines but also affects and storage technology.

Mar 2, 2024

Complete miscibility of immiscible elements at the nanometre scale

Posted by in categories: materials, nanotechnology

Nanoparticles containing immiscible elements can be synthesized under certain experimental conditions.

Mar 2, 2024

RNA interference in the era of nucleic acid therapeutics

Posted by in categories: biotech/medical, nanotechnology

With six approved drugs, siRNA is now an established therapeutic modality poised for expansion.

Mar 1, 2024

Scientists create dancing nanoparticles to explore quantum limitations

Posted by in categories: nanotechnology, particle physics, quantum physics

Enhancing quantum features compensates for environmental losses, amplifying particle interactions, achieving entanglement at higher scales.

One of the oldest topics of contemporary science is where to draw the line between classical and quantum physics.


Abstract

Continue reading “Scientists create dancing nanoparticles to explore quantum limitations” »

Mar 1, 2024

Perovskite’s nanoscale secrets revealed in solar breakthrough

Posted by in categories: nanotechnology, solar power, sustainability

The key revelation from this study is the dual impact of the passivation process.


MIT’s research is set to make solar panels lighter, cheaper, and more efficient by addressing key challenges associated with perovskite solar panels.

Mar 1, 2024

Fabrication of mechanochromic gallium nanostructures by capillary interactions

Posted by in category: nanotechnology

A process that leverages capillary interactions between oligomers in an elastomeric polydimethylsiloxane substrate and deposited Ga enables the formation of Ga nanodroplets with nanoscale gaps in a single step. Gap-plasmon resonances excited within the nanogaps give rise to structural colours that can be tuned by changing the oligomer content in the substrate or by mechanical stretching.

Mar 1, 2024

In vivo biomolecule corona and the transformation of a foe into an ally for nanomedicine

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

Nanoparticles (NPs) administered in the human body will undergo rapid surface modification upon contact with biological fluids driven by their interfacial interaction with a diverse range of biomolecules. Such spontaneous self-assembly and adsorption of proteins and other biomolecules onto the NP surface constitute what is commonly known as the protein or biomolecule corona. This surface biotransformation of the NPs modulates their biological interactions and impact on physiological systems and can influence their overall pharmacological profile. Here, we comment on how the initially considered ‘nuisance’ of the in vivo corona formation can now be considered a nanoparticle engineering tool for biomedical use, such as in endogenous tissue targeting, personalized biomarker discovery and immunomodulation.

Mar 1, 2024

Scientists make nanoparticles dance to unravel quantum limits

Posted by in categories: nanotechnology, particle physics, quantum physics

The question of where the boundary between classical and quantum physics lies is one of the longest-standing pursuits of modern scientific research, and in new research published today, scientists demonstrate a novel platform that could help us find an answer.

The laws of quantum physics govern the behavior of particles at miniscule scales, leading to phenomena such as , where the properties of entangled particles become inextricably linked in ways that cannot be explained by classical physics.

Research in quantum physics helps us to fill gaps in our knowledge of physics and can give us a more complete picture of reality, but the tiny scales at which operate can make them difficult to observe and study.

Mar 1, 2024

AI could find out when cancer cells will resist chemotherapy

Posted by in categories: biotech/medical, information science, nanotechnology, robotics/AI

In a new study, scientists have been able to leverage a machine learning algorithm to tackle one of the biggest challenges facing cancer researchers — predicting when cancer will resist chemotherapy.


But in what could be a game-changer, scientists at the University of California San Diego School of Medicine revealed today in a study that a high-tech machine learning tool might just figure out when cancer is going to give the cold shoulder to chemotherapy.

Teaming up against cancer

Continue reading “AI could find out when cancer cells will resist chemotherapy” »

Feb 28, 2024

Study unlocks nanoscale secrets for designing next-generation solar cells

Posted by in categories: engineering, life extension, nanotechnology, solar power, sustainability

Perovskites, a broad class of compounds with a particular kind of crystal structure, have long been seen as a promising alternative or supplement to today’s silicon or cadmium telluride solar panels. They could be far more lightweight and inexpensive, and could be coated onto virtually any substrate, including paper or flexible plastic that could be rolled up for easy transport.

In their efficiency at converting sunlight to electricity, perovskites are becoming comparable to silicon, whose manufacture still requires long, complex, and energy-intensive processes. One big remaining drawback is longevity: They tend to break down in a matter of months to years, while silicon can last more than two decades. And their efficiency over large module areas still lags behind silicon.

Now, a team of researchers at MIT and several other institutions has revealed ways to optimize efficiency and better control degradation, by engineering the nanoscale structure of perovskite devices.

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