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31 Current news about the topic atomic force microscopes

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Tips for making nanographene

A new and efficient way to create nanographene for power and display devices

12-Nov-2020

Nanographene is a material that is anticipated to radically improve solar cells, fuel cells, LEDs and more. Typically the synthesis of this material has been imprecise and difficult to control. For the first time, researchers have discovered a simple way to gain precise control over the ...

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How to Gently Caress Atoms: A single oxygen atom is used as a highly sensitive sensor

How can surfaces be studied as gently as possible on an atomic scale?

10-Jun-2020

Oxygen is highly reactive. It accumulates on many surfaces and determines their chemical behavior. At the Vienna University of Technology, scientists study the interaction between oxygen and metal oxide surfaces, which play an important role in many technical applications - from chemical sensors ...

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Hydrogen bonds directly detected for the first time

16-May-2017

For the first time, scientists have succeeded in studying the strength of hydrogen bonds in a single molecule using an atomic force microscope. Hydrogen is the most common element in the universe and is an integral part of almost all organic compounds. Molecules and sections of macromolecules are ...

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Nanowires as Sensors in New Type of Atomic Force Microscope

19-Oct-2016

A new type of atomic force microscope (AFM) uses nanowires as tiny sensors. Unlike standard AFM, the device with a nanowire sensor enables measurements of both the size and direction of forces. Physicists at the University of Basel and at the EPF Lausanne have described these results in the ...

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Microscope creates near-real-time videos of nanoscale processes

16-Dec-2015

State-of-the-art atomic force microscopes (AFMs) are designed to capture images of structures as small as a fraction of a nanometer. In recent years, AFMs have produced desktop-worthy close-ups of atom-sized structures, from single strands of DNA to individual hydrogen bonds between ...

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Magnetic actuation enables nanoscale thermal analysis

Heated nanoprobes perform thermo-mechanical measurements using magnetic actuation

16-Jan-2012

Polymer nano-films and nano-composites are used in a wide variety of applications from food packaging to sports equipment to automotive and aerospace applications. Thermal analysis is routinely used to analyze materials for these applications, but the growing trend to use nanostructured materials ...

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AFM positioning: Shining light on a needle in a haystack

17-Nov-2010

The researchers characterize their new technique as a neat solution to the "needle in a haystack" problem of nanoscale microscopy, but it's more like the difference between finding the coffee table in a darkened room either by walking around until you fall over it, or using a flashlight. In a new ...

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'White graphene' to the rescue

Hexagonal boron nitride sheets may help graphene supplant silicon

03-Aug-2010

What researchers might call "white graphene" may be the perfect sidekick for the real thing as a new era unfolds in nanoscale electronics. But single-atom-thick layers of hexagonal boron nitride (h-BN), the material under intense study at Rice University's world-class Department of Mechanical ...

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Scientists strive to replace silicon with graphene on nanocircuitry

15-Jun-2010

Scientists have made a breakthrough toward creating nanocircuitry on graphene, widely regarded as the most promising candidate to replace silicon as the building block of transistors. They have devised a simple and quick one-step process based on thermochemical nanolithography (TCNL) for creating ...

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New technique shows unprecedented precision in measuring liquid-solid interaction

New images improve resolution of measurements by a factor of 10,000 or more

27-Apr-2010

Wettability — the degree to which a liquid either spreads out over a surface or forms into droplets — is crucial to a wide variety of processes. It influences, for example, how easily a car's windshield fogs up, and also affects the functioning of advanced batteries and fuel-cell systems. Until ...

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