nano-tech

An adult male dragonfly that is blue. Photo: Tali Lamkof

The Spriters teach how to produce strong colors without polluting pigments

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Ben-Gurion University-led research reveals how spiders produce a saturated blue-green color from imperfect nanoscale structures. The mechanism may aid in the development of sustainable structural dyes
An EPFL chip based on an ultrafast laser operates in a laboratory experiment. The device generates extremely short laser pulses directly on the photonic chip. From the study

Femtosecond laser scaled down to a photonic chip

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An ultrafast laser that once required a large laboratory system has been scaled down to a photonic chip, paving the way for more compact measurement and sensing tools.
Two-dimensional materials are considered one of the most promising directions for improving computer chips, but researchers at the Vienna University of Technology have found that some of them are unsuitable due to an underestimated physical effect. The study also points to possible alternatives. Credit: Vienna University of Technology, TU Wien.

A tiny atomic gap could change the map of 2D materials for future chips

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TU Wien research published in Science points to a fundamental limitation in the interface between 2D materials and insulating layers in advanced transistors
An artist's impression of a nanorobot (center and inset) interacting with several bacteria of two different types. The dashed arrows indicate the attractive thermophoresis force exerted by the nanorobot on the bacteria in its environment when illuminated. Credit: Jin Chin

Light-driven nanorobots successfully detect and collect bacteria

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Researchers from the University of Würzburg have developed tiny robots, smaller than one micrometer, that are propelled by photon repulsion and capable of manipulating bacteria in a liquid environment.
The transition of the glass states. Illustration by Prof. Haim Diment and Prof. Yael Roychman.

Scientific discovery sheds light on the mystery of the glass passage

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Tel Aviv University researchers have developed a method for precise and energy-efficient control of the stacking structure of graphene, using nanoscale islands in which the layers of the material slide relative to each other and change its electronic properties.

Tel Aviv University researchers have developed a particularly cost-effective method for controlling the structure of graphene.

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Researchers have succeeded in changing the stacking arrangement of graphene at the nanometer scale using tiny force and very low energy input, a step that could advance memory components, sensors, and neuromorphic computing.
Magnetism. Illustration: depositphotos.com

Artificial intelligence scanned thousands of articles and created a huge database of magnetic materials

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A large, rich, and experimentally based database allows models to search for patterns and suggest new candidates quickly. The result is an online database built with large language models that read and extract data from a vast database of
The system in operation. Photo: Technion Spokesperson

New mechanical metafluid from the Technion enables magnetic control of flow rate for cooling and energy

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Prof. Amir Gat and doctoral student Ezra Ben-Abo present in Materials Today Physics a mechanical metafluid that can be compressed and dynamically driven using varying magnetic fields
Porous structures are at the core of many diverse applications in the energy world: space, smart buildings, solar cells, solar fuels, nuclear energy, fuel production, geothermal energy production, fuel cells and fast charging. The researchers explain in the article that proper design of these structures is an essential condition for technological, economic and environmental improvement in the energy sector.

Tiny portholes for a big future: Porous materials as the basis for the next energy revolution

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In an article in the journal Science, researchers from the Technion present a long-term blueprint for developing the world of energy around porous structures – from materials for producing and storing energy, through energy-efficient chips, to applications in biomedical engineering.
In the figure: A demonstration of the change that occurs in the membrane as a result of water flowing through it. Photo: Technion Spokesperson

On the road to improved desalination

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Researchers from the Technion and the University of Texas at Austin have mapped wet membranes for the first time using TEM cryo-tomography, revealing a volume expansion of approximately 30% under water flow, offering insights into designing more efficient membranes; the study was selected as a cover
Electromagnetic structures. Courtesy of the researchers

Scientific breakthrough: A cyclic electromagnetic structure based on topological bonds has been measured for the first time

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Researchers from Tel Aviv University and Rafael have developed an innovative metasurface based on conductive loops in the form of bonds, which allows precise control of electromagnetic waves – and has been measured for the first time in an experiment.
Broken glass on a black background, intricate cracks, beauty in destruction and the fragility of glass.

How internal disorder dictates asymmetric refraction

Weizmann Institute of Science scientists have uncovered laws of physics that explain why cracks in a material propagate asymmetrically, laying the foundation for developing more durable materials.
Overcoming 'blindness' with respect to what is happening deep within the tissue [Photo: Technion Spokesperson]

A new method for non-invasive monitoring of molecular processes deep within tissue

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An innovative approach that simulates the visual system of insects developed at the Technion is expected to impact the monitoring of molecular processes in cancer and other diseases.
Photo by research team: Tel Aviv University. Credit: Sayostudio

Electric memory slide

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A team of researchers from Tel Aviv University has succeeded in exploiting frictionless sliding to significantly improve the performance of memory components in computers and other electrical components.
Transporting medicines. Illustration: depositphotos.com

Innovative technology for biological nanoparticles enables combined treatment against cancerous tumors

Researchers from Tel Aviv University have developed an innovative platform based on nanoparticles, which enables the precise transport of two drugs at the same time to cancerous tumor sites, while improving treatment efficiency and reducing toxicity to healthy cells.
When a point electromagnetic source that propagates perfect circular wavefronts (bottom row, left) is placed in front of a rigid dielectric surface, significant reflections and distortions in the wavefronts are observed (bottom row, right). When the same surface is coated with metal formations designed in the article according to the Generalized Huygens' Condition, the disturbances disappear thanks to the general-angular irregularities (bottom row, middle) and the ideal propagation is fully restored (as if the waves were propagating in free space, similar to the scenario on the left). Top row: Left: the measurement setup in which the surface (device) is illuminated and the field transmitted by a detector (detector) is measured. Middle: the dielectric surface that is created with a coating to suppress reflections at all angles. Right: reference surface without the coating (for which a significant return was observed).

Researchers at the Technion have developed a technology that gives "electromagnetic transparency" to hard surfaces

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This type of transparency is relevant to a wide variety of applications including flat antennas, analog-optical computing devices and compact imaging systems
Nano biological sensors. Illustration: depositphotos.com

What do espresso, oil and microgels have in common?

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Researchers at the Technion have developed an innovative method for producing vital particles that can be used as biological sensors for the worlds of food, medicine, environmental science and more
Scanning electron microscope image of CellFoam™ under laboratory conditions after seeding with fibroblasts. The pore structure of the template is clearly visible, with the fibroblasts growing around and near the pore openings. From the biochange website

BioChange: The company that grows tissue from foam

Nanotechnological materials. Illustration: depositphotos.com

Nanomaterials from both worlds

Researchers grow inorganic materials inside polymers and thus create nanomaterials and nanostructures with improved properties
Nano gold sheets. Illustration: depositphotos.com

What are the heat dimensions of nanometric gold?

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Innovative research on thin gold layers has revealed new photoluminescence behavior while advancing our understanding of measuring temperature as well as chemical reactions at the nanometer level
Nanoparticles, against bacteria. Illustration courtesy of Prof. Raz Yelink, Ben Gurion University

Nanoparticles, against bacteria

Carbon nanoparticles stick to bacterial membranes and puncture them. On new type of antibiotic tools
The second revolution of spintronics. Illustration: depositphotos.com

The race for copper

Researchers aim to launch the second revolution in the field of spintronics - and significantly increase the amount of memory in our electronic devices
Improving graphene production. Illustration: depositphotos.com

The revolution in the nanoelectronics industry is already here

A new development may accelerate the use of graphene in the nanoelectronics industry and be used in many technological applications
drug transfer. Illustration: depositphotos.com

Development of the Technion will allow the creation of cells and tissues deep in the body in a non-invasive way with the help of ultrasound

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The applicability of the new technology is demonstrated in the contexts of local cell transplantation, drug transport for controlled local release over time and 3D bioprinting. The mechanical properties of the scaffolds can be adjusted according to the target tissue and the rate
Smart liquid. Credit: The Science website via DALEE. The picture is not a scientific picture

For the first time: "smart liquids" will be used as sensitive biological sensors

The team of researchers explained that the uniqueness of the smart liquids is that, as a result of their chemical properties, the liquids maintain separation from each other, thus creating distinct droplets
A photograph of the fracture surface in a silicone model, across both fracture planes, shows that the crack profile has a certain curvature

Secrets, cracks and fractures

It turns out that the shorter a crack in brittle materials - the more resistant they are to it, which can help in the design and use of applications that are based on brittle materials
Gene editing using CRISPR. Illustration: depositphotos.com

EIC grant for nanoparticle-based research for cancer therapy

Prof. Rachela Popobzer from the Faculty of Engineering and the Institute for Nanotechnology and Advanced Materials at Bar Ilan University won a grant of 150 euros, for research aimed at making drug treatment more efficient and targeted
Computer simulations showed that changing the coverage of the monolayer changed the smoothness of the surface. Both low coverage and high coverage produced very slippery surfaces, but for different reasons. [Source: Sakari Lepikko et al 2023]

The smoothest surface ever created

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The smoothness of a surface can be adjusted by changing its roughness at the molecular level - this is how researchers from Finland demonstrate
Benzene, a simpler type of carbon ring. Illustration: depositphotos.com

Researchers synthesized a stable C16 carbon ring, although theoretically it should have broken down immediately

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Before the successful synthesis, it was not clear if it was even possible to create such a molecule and keep it stable long enough to study its structure and its electronic properties.
- Spin laser on an atomic scale: the image describes the laser resonator structure consisting of two types of nanoantenna structures. The radiation is trapped in the internal structure only (yellow). The active layer of the laser - a single atomic layer - is on the resonator. The laser beam is split into two beams by the opposite spins of the photons (light particles), which can be controlled with the help of the laser pump (credit: Scholardesigner co, LTD).

For the first time: a spin-optical laser at the atomic level - a new horizon for optoelectronic devices

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Researchers from the Technion have challenged the limits of what is possible in the field of spin-optics at the atomic level. They developed a spin laser from a single atomic layer - a device that does not require magnetic fields or low temperatures
Prof. Shahar Richter. Tel Aviv University photo

The fastest artificial swimming motor in nature

A new material created from natural materials can move quickly through water and carry up to 40 times its own body weight
The atomic structure of the material strontium vanadate (strontium vanadate) - illustration of the atomic structure of the material under tension (right) and compression (left). In the center you can see the true atomic arrangement in the material in an electron microscope image. At the bottom of the picture you can see how the various efforts change the structure of the energy levels in the material and therefore also the way the electrons arrange themselves in it. By controlling these properties, the researchers intend to engineer these materials into future transistors. Photo: Nitzan Zohar, Technion Spokesperson

The materials for the transistors of the future

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Researchers at the Technion have engineered a material that may replace silicon in the world of electronics in the future; Through the stretching of the material at the atomic level, they gain control over the material's conduction and insulation properties, thus progressing towards turning it into a switch
XNUMXD electronics printing. Illustration: depositphotos.com

The world's first printed electronic components that are fully recyclable

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First-of-its-kind pioneering demonstration points to the possibility of a greener future for the electronics sector
Growth of nanoscale structures. Courtesy of Prof. Ernesto Yoslevitz

The world belongs to the little ones

Researchers built surfaces that direct the growth of nanowires and nanotubes and watched their growth process in real time. The forecast for the future: building advanced devices, such as tiny solar cells
The system diagram. Illustration by Ran Levy RNLV-Design

Desalination, the nanorobot version

Futuristic water purification? An Israeli company is developing a new desalination method in which nano-robots will clean seawater of problematic salts; This, without removing from them substances that are important for our health
Nano robots treat a cancer cell. Illustration: shutterstock

The tiny robot that is able to navigate a physiological environment and capture damaged cells

Meet the hybrid microrobot: innovative technology tiny 10 microns (the size of a biological cell)
organic molecules. Illustration: depositphotos.com

Identification of organic compounds using visible light

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Researchers from the University of Santiago in Chile, working in the field of machine learning, have succeeded in developing an innovative method for identifying organic compounds based on the refractive index at a single optical wavelength
Illustration: depositphotos.com

Israeli researchers have developed a smart microscope capable of measuring individual atomic layers

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A team of researchers from the Hebrew University has developed a device that is able to easily and quickly measure the properties and thickness of surfaces 35 times smaller than the diameter of a human hair. The method is expected to significantly optimize the production of solar cells,
The setup the researchers use: a thin membrane made of diamond 30 microns thick with an average of one sensor at the top end of each column. The top image - magnification 2,640 times, the bottom - 32,650 times

Molecular close-up

Weizmann Institute scientists present a new method for imaging a single electron
Magnified microscope image of a single VCSEL. (The size is 0.1 mm). Photo: Nitzan Zohar, Technion Barracks

Researchers at the Technion have developed tiny laser devices for small atomic clocks for the industry

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These watches have unique features including small volume and weight and low energy consumption - essential features because they are mobile components powered by batteries. The tiny clock has similar uses to those of normal atomic clocks used
The image of the structure of the material zeo-3, an innovative silica zeolite with extremely large pores [courtesy: ICMM-CSIC]

Large three-dimensional porous zeolite for water and gas purification

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An international team of researchers succeeded in developing the most stable and porous zeolite known so far composed entirely of silica, which they named ZEO-3
The nano 'spikes' formed from a combination of copper with the polysaccharide, cause damage to the bacteria's membrane and thus kill them. From a study by Prof. Ariel Kushmaro Credit: Sharon Amalani, Ben Gurion University

Thorns in the war against bacteria and fungi

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Long and dense spikes formed by a sulfated polysaccharide substance found in red algae were discovered by a research group from Ben-Gurion University of the Negev to have biological activity against bacteria and fungi
Schematic of the measurement circuit (a), theoretical model (b) and resonant frequencies as a function of the gate voltage (c, d).

A nanometer device developed at the Technion paves the way for memory, sensing and quantum computing technologies

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Schematic of the measurement circuit (a), theoretical model (b) and resonant frequencies as a function of the gate voltage (c, d).
The results of growing the printed tissue in CarGrow medium (above) and without it. You can see that the innovative process maintains approximately the original size of the tissue and prevents its drastic contraction. Courtesy of the Technion spokesperson

New technology for growing printed tissues for transplantation

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The technological innovation suppresses the typical shrinkage of printed tissues in the period before transplantation
"Sliding and climbing between electrical polarizations": The periodic crystal structure contains a pair of atoms at regular intervals in each horizontal layer. Each additional layer can be slid to the right or left in the horizontal plane to place a blue atom exactly above a red atom or vice versa, thereby bouncing electrons with an electrical charge up or down between the layers. Unlike in polarized crystals known so far, the electric potential in the new system changes in a constant and well-defined value between each step. It is possible to climb in a controlled manner between all the different options, that is, it is possible to switch between the information units in the same crystal in contrast to a pair of modes in previous technologies. Courtesy of Tel Aviv University

Atomic steps in the thin electrical scale in nature

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Dental examination. Image: depositphotos.com

Exhale - and discover diseases

Volatile molecules may characterize diseases such as tooth decay and gum disease
Representation of a two-dimensional ferroelectric material [Courtesy: UC Berkeley / Suraj Cheema]

Innovative ferroelectric material for energy efficient devices

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Discovering the behavior of a material of interest on a small scale could reduce energy consumption in computing
Prof. Dror Pixler. Photo: Bar Ilan University Spokesperson

Developments that change the way of looking at existing systems

Prof. Dror Pixler from the Faculty of Engineering and the Institute of Nanotechnology is developing optical tools that expand diagnostic and healing capabilities
teeth brushing. Will we be replaced by robots? Image: depositphotos.com

Tiny robots that clean teeth

In a recent study published in the scientific journal ACS Nano, researchers described how they used a tiny robot to clean the entire oral cavity. The researchers created a swarm of "iron oxide nanoparticles", which they controlled using a field
Micro robots fight bacteria inside the body. Image from a virtual reality simulation. Image: depositphotos.com

Micro-robots swim in the lungs and kill bacteria

Nanotechnology engineers at the University of California San Diego have developed tiny robots - micro-robots, in their full name - that are able to swim inside the lungs, reach the bacteria that cause pneumonia, kill them and reverse the damage they do to the body
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