News tagged with electrostatic forces
Electric charge disorder: A key to biological order?
Theoretical physicist Ali Naji from the IPM in Tehran and the University of Cambridge, UK, and his colleagues have shown how small random patches of disordered, frozen electric charges can make a difference when they are ...
Apr 30, 2012 |
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Eye on ionization: Visualizing and controlling bound electron dynamics in strong laser fields
(PhysOrg.com) -- Subatomic events can be remarkably counterintuitive. Such is the case in theoretical physics when, under certain specific conditions, atoms exposed to intense infrared laser pulses remain ...
Oct 19, 2011 |
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New complex offers potentially safer alternative for gene therapy delivery
Spontaneous ordering of DNA fragments in a special matrix holds the key to creating non-toxic gene therapy delivery vectors, according to a study recently published in the European Physical Journal E.
Sep 08, 2011 |
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Seeing an atomic thickness
Scientists from NPL, in collaboration with Linkoping University, Sweden, have shown that regions of graphene of different thickness can be easily identified in ambient conditions using Electrostatic Force ...
May 19, 2011 |
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Depth Charge: Using Atomic Force Microscopy to Study Subsurface Structures
Over the past couple of decades, atomic force microscopy (AFM) has emerged as a powerful tool for imaging surfaces at astonishing resolutions—fractions of a nanometer in some cases. But suppose you're more ...
Nanotechnology / Nanomaterials
Jun 24, 2010 |
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Scientists record yoctonewton forces
(PhysOrg.com) -- Scientists in Australia and the US have discovered that trapped ions are "exquisitely sensitive" force detectors, and have used them to record the tiniest forces ever measured.
Apr 14, 2010 |
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Life after silicon: Using exotic materials to help microchips keep improving
(PhysOrg.com) -- The huge increases in the power and capacity of computers, cell phones and communications networks in the last 40 years have been the result of ever-shrinking silicon transistors. But silicon ...
Dec 08, 2009 |
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Electrostatic surface cleaning
It's often the little things that count in industrial manufacturing processes. Particles less than half the diameter of a hair in size can significantly impair quality in production. For example, there should ...
Oct 07, 2009 |
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DNA gripped in nanopores
Molecular biologists, including the cool dudes from CSI, use gel electrophoresis to separate DNA fragments from each other in order to analyze the DNA. A team of researchers under the leadership of Vici winner Serge Lemay, ...
Nanotechnology / Bio & Medicine
May 14, 2009 |
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Making a Point: Picoscale Stability in a Room-Temperature AFM
(PhysOrg.com) -- Forget dancing angels, a research team from the National Institute of Standards and Technology (NIST) and the University of Colorado (CU) has shown how to detect and monitor the tiny amount ...
Mar 25, 2009 |
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Nanoscopic static electricity generates chiral patterns
In the tiny world of amino acids and proteins and in the helical shape of DNA, a biological phenomenon abounds.
Nanotechnology / Bio & Medicine
Feb 02, 2009 |
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