Category Archives: microscopy

Researchers develop integrated nanomechanical sensor for atomic force microscopy

From PhysOrg.com:

As reported in Nano Letters, CNST researchers have fabricated a novel integrated sensor combining a nanomechanical cantilever probe with a high sensitivity nanophotonic interferometer on a single silicon chip. Replacing the bulky laser detection system allowed them to build cantilevers orders of magnitude smaller than those used in conventional AFMs.

Because each of these smaller structures has an effective mass less than a picogram, the detection bandwidth is dramatically increased, reducing the system response time to a few hundred nanoseconds.

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Universal detector made of DNA building blocks

From PhysOrg.com:

A method for detecting such diverse substances as antibiotics, narcotics and explosives – a universal detector, so to speak – has been developed by German researchers at the Max Planck Institute for Polymer Research in Mainz.

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Researchers create next-generation chemical mapping on the nanoscale

From PhysOrg.com:

A pixel is worth a thousand words? Not exactly how the saying goes, but in this case, it holds true: scientists at Berkeley Lab’s Molecular Foundry have pioneered a new chemical mapping method that provides unprecedented insight into materials at the nanoscale. Moving beyond traditional static imaging techniques, which provide a snapshot in time, these new maps will guide researchers in deciphering molecular chemistry and interactions at the nanoscale — critical for artificial photosynthesis, biofuels production and light-harvesting applications such as solar cells.

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New method for studying molecule reactions a breakthrough in organic chemistry

From PhysOrg.com:

In a feat of manipulating substances at the nanoscale, UCLA researchers and colleagues demonstrated a method for isolating two molecules together on a substrate and controlling how those two molecules react when excited with ultraviolet light, making detailed observations both before and after the reaction.

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New microscope produces dazzling 3-D movies of live cells

From PhysOrg.com:

A new microscope invented by scientists at Howard Hughes Medical Institute’s Janelia Farm Research Campus will let researchers use an exquisitely thin sheet of light — similar to that used in supermarket bar-code scanners — to peer inside single living cells, revealing the three-dimensional shapes of cellular landmarks in unprecedented detail. The microscopy technique images at high speed, so researchers can create dazzling movies that make biological processes, such as cell division, come alive.

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Filed under biotechnology, cellular biology, microscopy