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The Multidisciplinary Nature of AFM

AFM (atomic force microscopy) is used in a seemingly endless range of disciplines, from biology, chemistry and engineering. This is due to its high resolution and versatility, which make it a very useful and powerful tool for imaging the diverse nanoscale world in liquid, air and vacuum environments. AFM use can be highlighted across the disciplines, here are some prime examples of AFM use in specific discipline areas.  Biology - Nanoscale mechanics of brain abscess: an atomic force microscopy study A brain abscess is a life-threatening swelling of part of the brain which arises from an infection. In this example, the viscoelastic properties: Young’s modulus and hysteresis (H) of three layers of brain abscess tissue were measured using atomic force microscopy for the very first time. The measurements were performed immediately after surgical removal where the tissue was rough and inhomogeneous in terms of its thickness. Therefore, an AFM instrument with a large z-range movement had to
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Tips for Vibration Isolation

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AFM - Where are its Uses?

An atomic force microscope (AFM) is a type of high resolution scanning probe microscope that has a resolution that you can measure in fractions of a nanometer. This scientific technology was pioneered in 1986 by Nobel Prize Winner Gerd Binnig along with Calvin Quate and Christoph Gerber.  Atomic Force Microscopy One of the most important tools for imaging on the nanometer scale, AFM uses a cantilever with a sharp probe that scans the surface of the specimen. When the tip of the probe travels near to a surface, the forces between the tip and sample deflect the cantilever according to Hooke’s law. AFM will measure a number of different forces depending on the situation and the sample that you want to measure. As well as the forces, other microscopes can include a probe that performs more specialised measurements, such as temperature. The force deflects the cantilever, and this changes the reflection of a laser beam that shines on the top surface of the cantilever onto an array of photod

When to Order Heating Oil for the Best Price?

As the 1.5 million UK consumers of heating oil Shropshire will know, there can be significant price fluctuations, which can mean paying a different price depending on what time of year it is. Oil and gas prices fluctuate regularly so it can be quite difficult to know when the best time to purchase heating oil is in order to get the best value or the cheapest price - particularly in the run up to the colder winter months when you’ll be using the most home heating oil. On average, a household that uses home heating oil will use two-thirds of its yearly heating oil consumption between October and March. There are many complex factors that influence the price you pay for your home heating oil, this does make it difficult to predict when the best time to buy your oil is. However, by understanding some of the main factors that affect the price of winter heating oil, you will be in a much better position to make an informed decision about when the best time to order is for you. Although, as

How Does AFM Work?

AFM (Atomic Force Microscopy) is possibly the most versatile and powerful type of microscopy technology available for studying samples at the nanoscale. It is versatile because a budget atomic force microscope can not only image in three-dimensional topography, but it also provides various types of surface measurements to the needs of engineers and scientists. It is powerful because an AFM can easily generate images at atomic resolution with angstrom scale resolution height information, with minimum sample preparation.  AFM Principle - Surface Sensing An AFM uses a cantilever with a very sharp tip to scan over a sample surface. As the tip approaches the surface, the close-range, attractive force between the surface and the tip causes the cantilever to deflect towards the surface. However, as the cantilever is brought even closer to the surface, such that the tip makes contact with it, increasingly repulsive force takes over and causes the cantilever to deflect away from the surface. -

What are Electrical Feedthroughs?

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Home Heating Oil - Best Heating Option

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