Current Microscopy Techniques News and Events | Page 24

Current Microscopy Techniques News and Events, Microscopy Techniques News Articles.
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Physicists design a device inspired by sonic screwdriver
Physicists have designed a handheld device inspired by the sonic screwdriver in Doctor Who and the tricorder in Star Trek that will use the power of MRI and mass spectrometry to perform a chemical analysis of objects. (2017-03-08)

Detailed chemical structure of P22 virus resolved
A team of scientists from Baylor College of Medicine and other institutions has completed a model of unprecedented near-atomic resolution of the chemical structure of bacteriophage P22. (2017-03-07)

Biophysicists propose new approach for membrane protein crystallization
Membrane proteins are of great interest to both fundamental research and applied studies (e.g., drug development and optogenetics). Previously, scientistist had to use detergents to stabilize membare proteins (e.g. for x-ray crystallography). For the first time, a team of scientists showed that membrane proteins trapped in synthetic patches of cell membrane called 'nanodiscs' can be transferred into the lipidic cubic phase and crystallized. (2017-03-06)

Nanoinjection increases survival rate of cells
How do tumours grow? And how do bacteria transform harmless substances into medical agents? When biophysicists want to understand what is happening in living cells, they have to introduce fluorescent probes or other foreign molecules. There are several ways to overcome the cell wall without causing the cell permanent harm. Physicists at Bielefeld University have developed a particularly gentle method for this: nanoinjection. (2017-03-01)

A fine-tuned microscopy technique offers breakthrough imaging of melanoma
Researchers have recently refined a classic Raman-based technique and succeeded in imaging the two dominant melanin molecules -- a breakthrough that could lead to new understandings and, critically, early detection of melanoma (2017-03-01)

Super resolution imaging helps determine a stem cell's future
Scientists at Rutgers and other universities have created a new way to identify the state and fate of stem cells earlier than previously possible. Understanding a stem cell's fate -- the type of cell it will eventually become -- and how far along it is in the process of development can help scientists better manipulate cells for stem cell therapy. (2017-02-27)

Teach yourself everyday happiness with imagery training
In a recently published paper in Frontiers in Human Neuroscience, scientists at the Smartbrain Clinic in Oslo, Norway find that self-guided positive imagery training can successfully combat negative emotions in our daily lives. This tool is so powerful that it also changes the way our brain functions. (2017-02-24)

A new dimension in chemical nanoimaging
Researchers from the Basque institutions CIC nanoGUNE, Ikerbasque and Cidetec, and the German Robert Koch-Institut report the development of hyperspectral infrared nanoimaging. It is based on Fourier transform infrared nanospectroscopy (nano-FTIR) and enables highly sensitive spectroscopic imaging of chemical composition with nanoscale spatial resolution. (2017-02-23)

Researchers pave the way for ionotronic nanodevices
Ionotronic devices rely on charge effects based on ions, instead of electrons or in addition to electrons. These devices open new opportunities for creating electrically switchable memories. Researchers at Aalto University in Finland have visualized how oxygen ion migration in a complex oxide material causes the material to alter its crystal structure in a uniform and reversible fashion, prompting large modulations of electrical resistance. Resistance-switching random access memories could utilize this effect. (2017-02-23)

Brain-machine interfaces: Bidirectional communication at last
A prosthetic limb controlled by brain activity can partially recover the lost motor function. Neuroscientists at UNIGE asked whether it was possible to transmit the missing sensation back to the brain by stimulating neural activity in the cortex. They discovered that not only was it possible to create an artificial sensation of neuroprosthetic movements, but that the underlying learning process occurs very rapidly. These finding were obtained by resorting to imaging and optical stimulation tools. (2017-02-22)

Rapid Imaging of Polymers Could Lead to Better Bioimaging
A recent study by researchers at the Beckman Institute for Advanced Science and Technology at the University of Illinois identifies a method of Quantum Cascade Laser-based (QCL) infrared spectroscopic imaging that provides a more rapid method than conventional Fourier transform infrared imaging (FT-IR) to examine spherulites, large semicrystalline polymer samples, in order to identify chemical and structural properties. (2017-02-22)

New window into the nanoworld
For the first time ever, scientists have captured images of terahertz electron dynamics of a semiconductor surface on the atomic scale. The successful experiment indicates a bright future for the new and quickly growing sub-field called terahertz scanning tunneling microscopy (THz-STM), pioneered by the University of Alberta in Canada. THz-STM allows researchers to image electron behaviour at extremely fast timescales and explore how that behaviour changes between different atoms. (2017-02-21)

Atomic force imaging used to study nematodes
In a new study, researchers report for the first time the effective imaging of the nanoscale structure of C. elegans nematodes' cuticle using atomic force microscopy operating in PeakForce Tapping mode. (2017-02-17)

Scientists reveal the treadmilling motion of dividing bacteria
An international team of scientists using the latest imaging techniques have revealed how bacterial division proteins build a partition wall across the cell, one molecule at a time. (2017-02-16)

Illuminating the contacts
Using super-resolution microscopy, an international research team led by Assistant Professor Pakorn (Tony) Kanchanawong from the Mechanobiology Institute, Singapore (MBI) at the National University of Singapore (NUS) and the Department of Biomedical Engineering at NUS, as well as Dr Cristina Bertocchi, Research Fellow at MBI, has revealed, for the first time, how cadherin-based cell-cell contacts are organised. (2017-02-15)

Turning up the heat for perfect (nano)diamonds
For use in quantum sensing, the bulk nanodiamond crystal surrounding the point defect must be highly perfect. Any deviation from perfection will adversely affect the quantum behavior of the material. Highly perfect nanodiamonds are also quite expensive and difficult to make. A cheaper alternative, say researchers, is to take defect-ridden, low-quality, commercially manufactured diamonds, and then 'heal' them. In APL Materials, they describe a method to heal diamond nanocrystals under high-temperature conditions. (2017-02-14)

Kalinin, Paranthaman elected Materials Research Society fellows
Two researchers at Oak Ridge National Laboratory, Sergei Kalinin and Mariappan Parans Paranthaman, have been elected fellows of the Materials Research Society. (2017-02-14)

Most stretchable elastomer for 3-D printing
Researchers have developed a family of highly stretchable and UV curable (SUV) elastomers that can be stretched by up to 1100%, and are suitable for UV curing based 3-D printing techniques. Using high resolution 3-D printing with the SUV elastomer compositions enables the direct creation of complex 3-D lattices or hollow structures that exhibit extremely large deformation. Fabrication time for such SUV elastomers is also greatly reduced. (2017-02-08)

New technique slashes diagnosis time during brain surgery
Neurosurgeons want the quickest, most accurate information to help them make decisions during brain tumor surgery. A new technique could help. (2017-02-06)

A peek at the nightlife of synapses reveals they weaken, and why
Two studies in this issue offer a glimpse at the nightlife of synapses, the neural connections in the nervous system. Both reveal significant changes in the structure and molecular machinery of synapses during slumber in mice. (2017-02-02)

Complex bacterium writes new evolutionary story
A University of Queensland-led international study has discovered a new type of bacterial structure which has previously only been seen in more complex cells. Research team leader UQ School of Chemistry and Molecular Biosciences microbiologist Emeritus Professor John Fuerst said the study had found pore-like structures in a bacterium called Gemmata obscuriglobus. (2017-02-01)

High-resolution imaging reveals new understanding of battery cathode particles
Using advanced imaging techniques, scientists at the Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) have been able to observe what exactly happens inside a cathode particle as lithium-ion batteries are charged and discharged. (2017-02-01)

Background suppression for super-resolution light microscopy
Researchers of Karlsruhe Institute of Technology have developed a new fluorescence microscopy method: STEDD (Stimulation Emission Double Depletion) nanoscopy produces images of highest resolution with suppressed background. The new method yields an enhanced image quality, which is advantageous when analyzing three-dimensional, densely arranged subcellular structures. STEDD, a further development of the STED method, is now presented in Nature Photonics. (2017-02-01)

Ozone watch
The symposium covers all issues related to atmospheric ozone, including trends of ozone in the stratosphere and troposphere, ozone-climate interactions, latest emerging techniques for ozone observations, and effects of ozone on human health, ecosystems and food production. Future challenges for stratospheric and tropospheric ozone are highlighted. (2017-02-01)

Researchers develop label-free technique to image microtubules
Researchers in the Quantitative Light Imaging Laboratory at the Beckman Institute for Advanced Science and Technology at the University of Illinois have been able to use label-free spatial light interference microscopy (SLIM) and computer processing in order to image microtubules in an assay. The hollow tubular structures serve as the backbone of cells and help carry materials in the cell. Malfunctioning microtubules have been associated with various illnesses including cancer and Alzheimer's disease. (2017-01-27)

First 3-D observation of nanomachines working inside cells
Today scientists at the Institute for Research in Biomedicine (IRB Barcelona) present a study in Cell where they have been able to observe protein nanomachines (also called protein complexes)--the structures responsible for performing cell functions--for the first time in living cells and in 3D. This work has been done in collaboration with researchers at the University of Geneva in Switzerland and the Centro Andaluz de BiologĂ­a del Desarrollo in Seville. (2017-01-26)

Images show cytofilaments linking cell nucleus to extracellular environment
New images are providing the first visual evidence of a long-postulated physical link by which genes can receive mechanical cues from its microenvironment. Created by integrating six different imaging techniques, the images show thread-like cytofilaments reaching into and traversing a human breast cell's chromatin-packed nucleus. (2017-01-25)

Transplanted neurons incorporated into a stroke-injured rat brain
Today, a stroke usually leads to permanent disability -- but in the future, the stroke-injured brain could be reparable by replacing dead cells with new, healthy neurons, using transplantation. Researchers at Lund University in Sweden have taken a step in that direction by showing that some neurons transplanted into the brains of stroke-injured rats were incorporated and responded correctly when the rat's muzzle and paws were touched. (2017-01-23)

How plant cells regulate growth shown for the first time
Researchers have managed to show how the cells in a plant, a multicellular organism, determine their size and regulate their growth over time. The findings overturn previous theories in the field and are potentially significant for the future of agriculture and forestry -- as it reveals more about one of the factors which determine the size of plants and fruits. (2017-01-23)

Nanoscale view of energy storage
Through long shifts at the helm of a highly sophisticated microscope, researchers at Stanford recorded reactions at near-atomic-scale resolution. Their success is another step toward building a better battery. (2017-01-16)

CWRU directly measures how perovskite solar films efficiently convert light to power
Researchers at Case Western Reserve University have directly shown that electrons generated when light strikes a well-oriented perovskite film are unrestricted by grain boundaries and travel long distances without deteriorating. Identification of this property, which is key to efficiently convert sunlight into electricity, could lead to more efficient solar panels. (2017-01-11)

App to help smokers quit is developed by health psychologists and game designers
A smartphone app that could help smokers stick to New Year's resolutions to quit has been developed by academics at Queen Mary University of London (QMUL) and Kingston University. (2017-01-04)

Scripps Florida scientists develop drug discovery approach to predict health impact of endocrine-disruptors
Breast cancer researchers from the Florida campus of The Scripps Research Institute (TSRI) have developed a novel approach for identifying how chemicals in the environment -- called environmental estrogens -- can produce infertility, abnormal reproductive development, including 'precocious puberty,' and promote breast cancer. (2016-12-29)

The late effects of stress: New insights into how the brain responds to trauma
A new study by scientists from the National Centre for Biological Sciences (NCBS) Bangalore, has shown how a single instance of severe stress can lead to delayed trauma. A stressful incident can lead to increased electrical activity in a brain region known as the amygdala. This activity is delayed and is dependent on a molecule known as the N-Methyl-D-Aspartate Receptor (NMDA-R), a protein on nerve cells known to be crucial for memory functions. (2016-12-28)

'Latest spoke in the wheel' drives brain-mapping advances, reports Neurophotonics journal
A special section on 'Super-resolution Microscopy of Neural Structure and Function' in the current issue of the journal Neurophotonics presents ground-breaking new research and comprehensive review papers on a techniques enabling vital insights in understanding the brain. The journal is published by SPIE, the international society for optics and photonics. (2016-12-28)

Forthcoming comprehensive reference guide on deep tissue imaging techniques
A forthcoming reference book for new deep tissue imaging techniques, to be published Jan. 31, 2017 by Pan Stanford, provides a comprehensive guide for researchers and students of multiple disciplines. (2016-12-28)

Threading the RSV vaccine needle
Crafting a vaccine against RSV (respiratory syncytial virus), a common cause of lung infections in infants, has been a minefield for 50 years. Emory/CHOA researchers have engineered a version of RSV that is highly attenuated, yet potent in its ability to induce protective antibodies. (2016-12-21)

'Watershed' discovery reveals plants' medicinal secrets
Metabolons, near-mythical clusters of enzymes, have been discovered for the first time. Using fluorescent tags and microscopy -- molecular movie technology -- scientists have confirmed their existence, thus unlocking plants' secret medicinal toolbox. (2016-12-20)

Scientists boost catalytic activity for key chemical reaction in fuel cells
New catalysts containing platinum and lead could improve the efficiency of fuel cells -- a promising technology for producing clean energy. (2016-12-16)

Optical tractor beam traps bacteria
Up to now, if scientists wanted to study blood cells, algae, or bacteria under the microscope, they had to mount these cells on a substrate such as a glass slide. Physicists at Bielefeld and Frankfurt Universities have developed a method that traps biological cells with a laser beam enabling them to study them at very high resolutions. (2016-12-14)

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