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Archive for the ‘nanotechnology’ category: Page 59

Apr 5, 2023

Mind-Controlled Robots: New Graphene Sensors Are Turning Science Fiction Into Reality

Posted by in categories: nanotechnology, particle physics, robotics/AI

Researchers have designed a 3D-patterned, graphene.

Graphene is an allotrope of carbon in the form of a single layer of atoms in a two-dimensional hexagonal lattice in which one atom forms each vertex. It is the basic structural element of other allotropes of carbon, including graphite, charcoal, carbon nanotubes, and fullerenes. In proportion to its thickness, it is about 100 times stronger than the strongest steel.

Apr 3, 2023

Diamond NanoTech Battery Lasts 28,000 Years

Posted by in categories: electronics, nanotechnology

In the pearly light of the pocket nucleo-bulb…’ — Isaac Asimov, 1951.

Cheap Paper-Based Sensors Let You Snoop For Pesticides ‘…the unobtrusive inspections with tiny remote-cast snoopers.’ — Frank Herbert, 1965.

Modern App Provides Video Technology From Bradbury’s ‘Fahrenheit 451’ ‘A special spot-wavex scrambler also caused his televised image, in the area immediately about his lips, to mouth the vowels and consonants beautifully.’ — Ray Bradbury, 1953.

Mar 31, 2023

New nanoparticles can perform gene-editing in the lungs

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

Engineers at MIT and the University of Massachusetts Medical School have designed a new type of nanoparticle that can be administered to the lungs, where it can deliver messenger RNA encoding useful proteins.

With further development, these could offer an inhalable treatment for and other diseases of the , the researchers say.

“This is the first demonstration of highly efficient delivery of RNA to the lungs in mice. We are hopeful that it can be used to treat or repair a range of genetic diseases, including cystic fibrosis,” says Daniel Anderson, a professor in MIT’s Department of Chemical Engineering and a member of MIT’s Koch Institute for Integrative Cancer Research and Institute for Medical Engineering and Science (IMES).

Mar 30, 2023

Humans to attain immortality by 2029? Ex-Google scientist makes striking claim

Posted by in categories: genetics, life extension, nanotechnology, Ray Kurzweil, robotics/AI

“You won’t live forever” is a catchphrase which has often been touted and has so far remained the proven truth of life — of humans and almost every other living being on planet earth. But soon, this catchphrase may well become the truth of the past, as humanity steps forward to attain immortality.

A former Google scientist has made a prediction, which if proven right, may redefine human civilisation as we know it. Ray Kurzweil, whose over 85 per cent of 147 predictions have been proven right, has predicted that humans will become immortal by 2029.

The revelation came when the 75-year-old computer scientist dwelled upon genetics, nanotechnology, robotics and more in a YouTube video posted by channel Adagio.

Mar 30, 2023

Mechanical nanosurgery of chemoresistant glioblastoma using magnetically controlled carbon nanotubes

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

Nanomedicine uses nanomaterials [e.g., carbon nanotubes (CNTs), nanoparticles, and nanodiscs] or organic nanostructures (e.g., DNA origami and liposomes) for drug delivery (810), medical imaging (1114), and tissue regeneration (15). Nanomaterials offer therapeutic efficacy through their tissue permeation, interaction with an external energy source, and capability to be combined with other therapeutic modalities (16, 17). Because we recently demonstrated that GBM cells are mechanosensitive (18), we set to use nanomaterials to develop a nanoscale mechanical approach to treat GBM. Mechanical perturbation has been investigated as an approach to target cancer cells. For example, magnetic field–actuated nanomaterials compromise the integrity of plasma membrane, leading to the death of in vitro–cultured GBM cells (19) and breast cancer cells (20). GBM cells, which were preincubated with magnetic nanoparticles, were implanted into mice to generate xenograft tumors. A rotating magnetic field, which was then applied to these magnetic particles–harboring tumors, suppressed GBM growth (21). Similarly, magnetic field mobilization of mitochondria-targeting magnetic nanoparticle chains demonstrated efficacy in inhibiting GBM growth in mice (22). While these studies showed that magnetic field–controlled nanomaterials can be used in cancer treatment, the utility of magnetic nanomaterials in treating chemoresistant tumors, the root cause of tumor relapse and patient death, remains unexplored.

GBM displays an extreme level of heterogeneity at genomic, epigenetic, biochemical signaling, and cellular composition levels (23). The heterogeneous nature of GBM confers treatment resilience to tumors and leads to a unifying therapy resistance mechanism; i.e., suppressing selected proteins or biochemical pathways provides a fertile ground for alternative signaling mechanisms, which are not targeted by the given therapy, to fuel GBM growth (24). In other words, the “whack-a-mole” approach failed to benefit patients with GBM for decades. For this reason, we hypothesized that nanomaterial-based mechanical treatment of cancer cells, rather than specific targeting of signaling pathways, can overcome the therapy resistance of this biologically plastic disease. To this end, we engineered a mechanical nanosurgery approach using magnetic CNTs (mCNTs; nanotubes with carbon surface and a cavity filled with iron particles) based on the following reasons.

Mar 30, 2023

Discovery of a new topological phase could lead to exciting developments in nanotechnology

Posted by in categories: nanotechnology, physics

Cambridge researchers have discovered a new topological phase in a two-dimensional system, which could be used as a new platform for exploring topological physics in nanoscale devices.

Two-dimensional materials such as graphene have served as a playground for the experimental discovery and theoretical understanding of a wide range of phenomena in physics and . Beyond graphene, there are a large number 2D materials, all with different physical properties. This is promising for potential applications in nanotechnology, where a wide range of functionality can be achieved in devices by using different 2D materials or stacking combinations of different layers.

It was recently discovered that in materials such as (hBN), which are less symmetric than graphene, ferroelectricity occurs when one layer slides over the other and breaks a symmetry. Ferroelectricity is the switching of a material’s with an , which is a useful property for information processing and memory storage.

Mar 29, 2023

Former Google engineer predicts humans will achieve immortality within eight years

Posted by in categories: biotech/medical, genetics, life extension, nanotechnology, Ray Kurzweil, robotics/AI

One can only hope.


A former Google engineer has just predicted that humans will achieve immortality in eight years, something more than likely considering that 86% of his 147 predictions have been correct.

Ray Kurzweil visited the YouTube channel Adagio, in a discussion on the expansion of genetics, nanotechnology and robotics, which he believes will lead to age-reversing ‘nanobots’.

Continue reading “Former Google engineer predicts humans will achieve immortality within eight years” »

Mar 29, 2023

Nanotechnology Documentary — The Best Documentary Ever

Posted by in categories: education, nanotechnology, wearables

Thanks for watching!! Comment Anything As Ud Like!!

In this educational film scientists and engineers explain the construction of materials beginning at an atomic scale.

Continue reading “Nanotechnology Documentary — The Best Documentary Ever” »

Mar 29, 2023

Machines on Genes through the Computational Microscope

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

Macromolecular machines acting on genes are at the core of life’s fundamental processes, including DNA replication and repair, gene transcription and regulation, chromatin packaging, RNA splicing, and genome editing. Here, we report the increasing role of computational biophysics in characterizing the mechanisms of “machines on genes”, focusing on innovative applications of computational methods and their integration with structural and biophysical experiments. We showcase how state-of-the-art computational methods, including classical and ab initio molecular dynamics to enhanced sampling techniques, and coarse-grained approaches are used for understanding and exploring gene machines for real-world applications.

Mar 28, 2023

Caltech Engineers Have Developed an Unusually Tough New Material

Posted by in categories: biotech/medical, nanotechnology

Caltech engineers have made a significant breakthrough in the field of nano-and micro-architected materials by creating a novel material composed of multiple interconnected microscale knots.

Compared to structurally identical but unknotted materials, the presence of knots in this new material significantly enhances its toughness by enabling it to absorb more energy and deform more before returning to its original shape without any damage. These new knotted materials may find applications in biomedicine as well as in aerospace applications due to their durability, possible biocompatibility, and extreme deformability.

“The capability to overcome the general trade-off between material deformability and tensile toughness [the ability to be stretched without breaking] offers new ways to design devices that are extremely flexible, durable, and can operate in extreme conditions,” says former Caltech graduate student Widianto P. Moestopo (MS ‘19, Ph.D. ’22), now at Lawrence Livermore National Laboratory. Moestopo is the lead author of a paper on the nanoscale.

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