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(9,094 items)
Research & Technology News
Superresolution Microscope Builds 3D Images by Mapping Negative Space
AUSTIN, Texas, Oct. 14, 2016 — Thermal noise imaging, a novel method for making 3D images of biological structures at high resolution and under natural conditions, may offer insight into how cells communicate with one another, helping to further the development of artificial organs such as skin or heart disease. Nanometer-scale imaging of soft structures at room temperature poses a challenge because fast thermal fluctuations can lead to significant motion blur if the position of the structure is measured with
Imaging Biomarker for Parkinson’s Clinical Trials Gains EMA Support
LONDON and TUCSON, Oct. 13, 2016 — The European Medicines Agency (EMA) has issued a letter of support on the use of neuroimaging biomarker dopamine transporter imaging as an exploratory biomarker for early Parkinson’s disease (PD). The biomarker will help researchers select...
Novel Pathway to Light Suppresses Kasha’s Rule
BURLINGTON, Vt., Oct. 11, 2016 — A discovery about how some molecules produce light, in apparent contradiction of Kasha's rule, could have several applications, from industrial to biomedical. To explore the origin of aggregation-induced emission, researchers from the University of...
Holographic Imaging Technique Diagnoses Malaria Automatically, Accurately
DURHAM, N.C., Oct. 11, 2016 — A quantitative phase spectroscopy (QPS) system that incorporates digital holography has been used to spot malaria-infected cells from a simple, untouched blood sample without any help from a human. The technique employs machine learning algorithms...
Fiber-Optics-Based System Monitors Structural Health
BLACKSBURG, Va., Oct. 7, 2016 — An all fiber-optics based system for monitoring structure health shows promise as a reliable means to oversee structural soundness under extreme conditions. Active ultrasonic non-destructive evaluation (NDE), currently a widely used technique in...
Quantum Approach Measures Optical Molecular Activity With Precision
SYDNEY, Oct. 6, 2016 — Quantum optical rotatory dispersion, a technique that uses quantum methods to differentiate and measure molecules when light passes through chiral media, could offer a precise way to measure intricate molecular properties, even when low light or a...
Optical Vortex Discovery Could Lead to Microscopy, Fiber Optics Advances
COLLEGE PARK, Md., Oct. 4, 2016 — 3D ring-shaped light structures, generated by high-intensity lasers, have been identified and could lead to new opportunities for the use of lasers in microscopy and telecommunications.
Novel Device Adds to Interferometry’s Optical Capabilities
ROCHESTER, N.Y., Sept. 30, 2016 — Interferometers make minute measurements by manipulating beams of light using an optical delay — an effect that's typically achieved by adding length to one of the beam's paths, which slows the signal down. The creators of the Hilbert-space analyzer...
Novel Lens Delivers Controlled Doses of Medicine
BOSTON, Sept. 29, 2016 — A contact lens-based system that uses a strategically placed drug polymer film to deliver medication gradually to the eye was shown to be as effective as daily eye drops in a preclinical model for managing glaucoma. In a study supported by a grant...
Sensor Can Find E. coli Quickly Over Wide Temperature Range
OUTAOUAIS, Quebec, Sept. 28, 2016 — A fiber-optic biosensor has been developed that can detect E.coli bacteria in 15-20 minutes. The sensor is temperature-insensitive over a wide range, making it well-suited for the accurate detection of E. coli bacteria in outdoor environments.
Using Graphene to Lower the Cost and Footprint of LEDs
TAIPEI, Taiwan, Sept. 26, 2016 — A white LED (WLED) has been developed using a hybrid metal-organic framework (MOF) material, which provides electrically driven white light emission with a continuous spectrum that matches well with natural sunlight. It could offer an economical,...
Printing Shape-Changing 3D Structures With Light
CAMBRIDGE, Mass., Sept. 23, 2016 — A high-resolution 3D printing process that uses light from a projector to print patterns on shape-memory polymers (SMPs) was used to fabricate structures that can morph back to their original shape quickly. The process, called...
Novel Monomer Enhances Resolution in Live-Cell Imaging
BEIJING, Sept. 22, 2016 — A novel protein with a fluorescent probe for imaging live cells could improve live-cell superresolution (SR) imaging. While the use of reversibly switchable fluorescent proteins (RSFPs) reduces illumination intensity and thus enables SR imaging of...
Scientists Discern Light-Driven Molecular Changes Using LCLS Laser
LEMONT, Ill., Sept. 20, 2016 — To better understand how molecules undergo light-driven chemical transformations, a research team from the Argonne National Laboratory, Northwestern University, the University of Washington and the Technical University of Denmark used the Linac...
Laser Treatment Boosts Conductivity in Printed Graphene
AMES, Iowa, Sept. 19, 2016 — Treating inkjet-printed, multilayer graphene electric circuits and electrodes with a pulsed-laser process improves electrical conductivity of the graphene without damaging paper, polymers or other fragile printing surfaces. The discovery of this...
NIR Light Upregulates CCO, Stimulates Blood Flow
ARLINGTON, Texas, Sept. 15, 2016 — Broadband NIRS has potential as a non-invasive, in vivo means to study mechanisms of photobiomodulation and perform treatment evaluations of low-level laser/light therapy (LLLT). In a placebo-controlled study, researchers at the University of Texas...
More Underrepresented Students Pursue STEM Due to Research Mentoring
NEW YORK, Sept. 14, 2016 — A recent study indicates that undergraduates in minority-serving institutions who participate in mentored research not only graduate more often with science degrees, but also attend graduate school and pursue STEM careers at higher rates. Although...
Direct-Drive Laser Fusion Experiments Move Toward Target Ignition
ROCHESTER, NY, Sept. 13, 2016 — Conditions capable of producing a direct drive laser fusion yield that is five times higher than the current record for laser fusion energy yield have been demonstrated.
Ultrahigh-Resolution Microscope Images Whole Cells in 3D
WEST LAFAYETTE, Ind., Sept. 12, 2016 — A novel super-resolution nanoscope allows 3D imaging of an entire mammalian cell and its cellular constituents at a resolution that is 20–50 times higher than conventional microscopy, with imaging depth improved ∼10-fold over...
Solid-State Photodetector May Speed Switching of Optoelectronic Devices
NAGAKUTE, Japan, Sept. 9, 2016 — An all-solid-state-wavelength-dependent bipolar photodetector (WBPD), composed of a single semiconductor, has demonstrated a faster response time than existing WBPDs that are comprised of hetero-nanostructures. The novel WBPD has also demonstrated...
Hyperspectral Imaging Shines Light on Ancient Mexican Text
OXFORD, England, Sept. 8, 2016 — Researchers at the Bodleian Libraries have used hyperspectral imaging to reveal never-before-seen pictographic scenes from a rare precolonial Mexican codex that has been hidden underneath a layer of gypsum and chalk gesso for 500 years. Until now,...
Laser Identifies Size, Shape of Materials for Quicker Optical Design
ST. PETERSBURG, Russia, Sept. 7, 2016 — When optical diffraction was used to analyze the structure of a photonic crystal, researchers found that it created a characteristic light pattern that corresponded exactly to the number of scattering microscopic particles in the sample. The ability...
Vortex Laser May Help Shape the Future of Data Transfer
BUFFALO, N.Y., Sept. 6, 2016 — A light-based communications tool that is structured to carry data in a helical path may enable fast transfer of large amounts of data, resolving potential bottlenecks in data transfer as the demand for information sharing grows. The novel technique...
Virtual Reality May Offer Advances in Microscope Imaging
NEW YORK, Sept. 2, 2016 — A novel microscope image injection system has demonstrated the ability to relay virtual reality imaging to a surgeon through an eyepiece, known as the ocular, during microscopic surgery. The system, named CaptiView, allows images to be superimposed...
Photon Pairs Offer Alternate Approach to Quantum Computing
ESPOO, Finland, Sept. 1, 2016 — Microwave signals comprised of correlated photons could be used to code information for quantum computing and may offer an alternative to use of optical systems to build quantum computers. Researchers at Aalto University chilled a microwave...
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