| Photoemission spectroscopy (9) |  |
| Spectroscopy (154) | |
"By far the most powerful combination right now is the combination of transit detections and Doppler spectroscopy,
and do the spectroscopy, #says Macintosh.""And if Tess finds a habitable planet around a very nearby star,
Marginprobe utilizes non-destructive radio-frequency spectroscopy technology in the operating room to analyze the outer margins of removed cancerous tissue to detect traces of cancer cells.
The technique called uartz-enhanced photoacoustic absorption spectroscopy (QEPAS invented at Rice university in 2002 by engineer Frank Tittel, Professor Robert Curl,
The researchers believe that the protein has these properties because of its extremely compact three-dimensional structure as NMR spectroscopy has shown.
The palm-reading device which uses resonance Raman spectroscopy (RRS) has the potential to help nutritionists
The technique is based on Fourier transform infrared spectroscopy, which provides information on how molecules vibrate.
The researchers believe that the protein has these properties because of its extremely compact three-dimensional structure as NMR spectroscopy has shown.
The palm-reading device which uses resonance Raman spectroscopy (RRS) has the potential to help nutritionists
and identify out of place-place molecules on its surface using terahertz spectroscopy. They expect the finding to be important to manufacturers considering the use of graphene in electronic devices.
The technique is based on Fourier transform infrared spectroscopy, which provides information on how molecules vibrate.
The technique called uartz-enhanced photoacoustic absorption spectroscopy (QEPAS invented at Rice university in 2002 by engineer Frank Tittel, Professor Robert Curl,
Medical imaging could also benefit greatly as the dots show robust performance as fluorescent agents. ne of the problems with standard probes in fluorescent spectroscopy is that
The researchers used X-ray crystallography and Raman scattering spectroscopy to ensure they had produced the crystal structure and symmetry they intended.
or their analysis the researchers used ultraviolet spectroscopy data obtained with the Cosmic Origins Spectrograph on board the Hubble space telescope of the white dwarf GD 61.
Hong has used long solid-state nuclear magnetic resonance (NMR) spectroscopy to study structural biology including the mechanism used by the flu virus to infect host cells.
So the researchers##working with specialists from the Bruker Biospin Corp. a manufacturer of scientific instruments##used a technology called dynamic nuclear polarization (DNP) to enhance the sensitivity of spectroscopy instruments.
but it can also be used to do spectroscopy a technique that involves scattering light over a substance to infer its chemical composition.
but both need expensive bulky equipment to be sensitive enough for spectroscopy applications.##We set out to make an optomechanical thermal infrared detector#says Ertugrul Cubukcu assistant professor at the University of Pennsylvania.#
It based on near-infrared spectroscopy, which means it reflects light onto an object, then collects and analyzes the light reflected back.
While scientists and researchers use near-infrared spectroscopy on a regular basis, there are lots of consumers that would love to know more about the chemical composition of the world around them,
then monitored their brain activity using a noninvasive optical imaging technique called functional near-infrared spectroscopy.
(or fluorophore) that showed up under fluorescence spectroscopy. The beads were injected into mice along with the same amount of other beads tagged with a different colour fluorophore but not the peptide.
Using near-IR spectroscopy, the SCIO (pronounced ki-oh uses a source light and an optical sensor to identify the molecular structure of any given material.
Typically, the constituents of a chemical compound can be determined through spectroscopy, among other tools, but in the case of eumelanin the spectrographs don show the sharp peaks that are ordinarily useful in identification.
because the material naturally works at near-infrared wavelengths, this could enable new avenues for infrared spectroscopy,
and spectroscopy complemented with first principles theoretical calculations has shown that it gives rise to a system with very interesting electronic properties
and the Carnegie Institution for Science including X-ray diffraction neutron diffraction Raman spectroscopy first-principle calculations transmission electron microscopy and solid-state nuclear magnetic resonance (NMR).
Then, in May 2014, scientists from the University of California, Irvine, showed for the first time that these sensors can also be used to improve signals in a related imaging mode known as inelastic electron tunnelling spectroscopy.
"We believe that the results of this work are an important contribution to the use of inelastic electron tunnelling spectroscopy that will allow the technique to be used as an additional source of information in materials science
and spectroscopy techniques where beams of high-frequency photons bombard and bounce off a material to reveal elemental structure and composition.
While they further confirmed the results with x-ray absorption spectroscopy and electron microscopy after the heating trials the team needed to map the changes at higher resolutions.
To capture the atoms'electronic structures the scientists used electron energy loss spectroscopy (EELS. In this technique measurements of the energy lost by a well-defined electron beam reveal local charge densities and elemental configurations.
With gold as a chemically inert electrode and slightly-saline water as an electrolyte Salmeron and colleagues used a new twist on x-ray absorption spectroscopy XAS) to probe the interface
This study which is reported in Science in a paper titled The structure of interfacial water on gold electrodes studied by x-ray absorption spectroscopy marks the first time that the scientific community has shown such high sensitivity in an in-situ environment under working electrode conditions s
and time-resolved spectroscopy at the Center for Nanoscale Materials verified the movements of the electrons within the system,
In their study the researchers used x-ray photoelectron spectroscopy and Raman spectroscopy to confirm that the bioreceptor molecules had attached to the graphene biosensor once fabricated
Scanning tunneling microscopy/spectroscopy of picene thin films formed on Ag (111) by Yasuo Yoshida Hung-Hsiang Yang Hsu-Sheng Huang Shu-You Guan Susumu Yanagisawa Takuya
(impedance spectroscopy) that is affordable, widely available to manufacturers, and relatively easy to perform. The technique is repeatable, non-destructive,
For the impedance spectroscopy measurements, the sample was installed beneath an LED broadband white light, calibrated to one Sun illumination (natural sunlight).
These resulting data provide additional information about the recombination effects in the device that impedance spectroscopy is unable to provide.
Through highly precise control of the geometry of the nanostructures and using Raman spectroscopy an ultra-sensitive molecular identification technique the light can be trapped between the mirrors allowing the researchers to'fingerprint'individual molecules.
the Brookhaven team used a combination of full-field, nanoscale-resolution transmission x-ray microscopy (TXM) and x-ray absorption near-edge spectroscopy (XANES) at the National Synchrotron Light source (NSLS),
Raman spectroscopy allows researchers to measure these bonds and vibrations. Housed within the Center for Nanoscale Materials a DOE Office of Science User Facility the spectroscope allows researchers to use light to shift the position of one atom in a crystal lattice
which is described this week in the journal Nature Communications, uses a form of Raman spectroscopy in combination with an intricate but mass reproducible optical amplifier.
"The optical sensor uses Raman spectroscopy, a technique pioneered in the 1930s that blossomed after the advent of lasers in the 1960s.
By measuring and analyzing these re-emitted photons through Raman spectroscopy, scientists can decipher the types of atoms in a molecule as well as their structural arrangement.
a two-coherent-laser technique called"coherent anti-Stokes Raman spectroscopy,"or CARS. By using CARS in conjunction with a light amplifier made of four tiny gold nanodiscs,
and 666ma/g (1c) for voltages of 0 to 3v over 50 cycles (Fig. 2). In addition electronic and structural changes were analyzed microscopically by TEM/STEM/EELS and 57fe MÓ§ssbauer spectroscopy.
"Ultraviolet spectroscopy was used on the silica-gold core-shell nanoparticles made by Mr Duczynski to better understand their optical properties, such as extinction, scattering and absorption.
The researchers applied the experimental spectroscopy technique to examine hydrogen absorption in single palladium nanoparticles.
The scientists used a spectroscopy technique to analyze the chemical composition of dark streaks (which NASA refers to as Recurring Slope Lineae
and orders of magnitude larger than any equivalent frequency shifting observed through traditional magnetic resonance spectroscopy approaches.
California, has developed a miniaturized sensor based on Raman spectroscopy that can quickly and accurately detect or diagnose substances at a molecular level. ur system can do chemistry, biology, biochemistry, molecular biology, clinical diagnosis,
without much human intervention. he technology is enhanced based on surface Raman spectroscopy, a technique for molecular fingerprinting.
The key discovery that led to the formation of Optokey was the development of the nanoplasmonic resonators to dramatically improve the signal and reliability of Raman spectroscopy.
Besides Chen, the other cofounder is Richard Mathies, a UC Berkeley chemistry professor and world-renowned expert on Raman spectroscopy.
#Dresden Nanoscope Combines Microscopy and Ultra-Fast Spectroscopy for Precise Filming of Dynamic Processes To gain even deeper insights into the smallest of worlds,
near-field optical microscopy and ultra-fast spectroscopy. Computer-assisted technology developed especially for this purpose combines the advantages of both methods
microscopy and ultra-fast spectroscopy. It enables unaltered optical measurements of extremely small, dynamic changes in biological, chemical or physical processes.
Using ultra-fast spectroscopy is the crucial tool, on the other hand, enabling scientists to study dynamic processes on short timescales and with extreme sensitivity.
Hybrid approaches such as ours bring together multiple capabilities, in this case, spectroscopy and high-resolution microscopy. Rubye Farahi Closer observation of the new hybrid microscope reveals a photonic module
Using a refined procedure of solid-state nuclear magnetic resonance spectroscopy (solid-state NMR), they managed, for the first time ever,
"Starting from this intuition, Giachin and colleagues went on to conduct in depth experiments using XAFS (X-ray absorption fine structure) spectroscopy,
Fourier transform infrared spectroscopy, x-ray photoelectron spectroscopy, Raman and AFM imaging to determine the CDSVARIOUS optical and material properties. ynthesizing
A Raman spectroscopy probe then uses light to analyze the bacteria. In their studies the team was able to spot E coli
Raman spectroscopy and transport measurements on the graphene/boron nitride heterostructures reveals high electron mobilities comparable with those observed in similar assemblies based on exfoliated graphene.
The research was reported in the journal Nature Methods in a paper titled, ltrahigh-throughput single-molecule spectroscopy and spectrally resolved super-resolution microscopy,
"Hybrid approaches such as ours bring together multiple capabilities, in this case, spectroscopy and high-resolution microscopy.""Looking inside, the hybrid microscope consists of a photonic module that is incorporated into a mode-synthesizing atomic force microscope.
near-field optical microscopy and ultra-fast spectroscopy. Computer-assisted technology developed especially for this purpose combines the advantages of both methods
microscopy and ultra-fast spectroscopy. It enables unaltered optical measurements of extremely small, dynamic changes in biological, chemical or physical processes.
Using ultra-fast spectroscopy is the crucial tool, on the other hand, enabling scientists to study dynamic processes on short timescales and with extreme sensitivity.
which--in addition to the outstanding resolution of near-field optical microscopy that is at least three orders of magnitude better than the resolution of common ultra-fast spectroscopy--we can now also measure dynamic changes in the sample with high sensitivity,
Berkeley Lab scientist invents technique to combine spectroscopy with super-resolution microscopy, enabling new ways to examine cell structures
Berkeley Lab scientist invents technique to combine spectroscopy with super-resolution microscopy, enabling new ways to examine cell structures
The research was reported in the journal Nature Methods in a paper titled,"Ultrahigh-throughput single-molecule spectroscopy and spectrally resolved super-resolution microscopy"
The research is detailed in the current issue of Nature Nanotechnology("Nanoscale optical tomography with cathodoluminescence spectroscopy".
The paper("Probing the Molecular Architecture of Arabidopsis thaliana Secondary cell Walls Using Two-and Three-dimensional 13c Solid State Nuclear Magnetic resonance Spectroscopy")describing this work was Editors Choice for the American
NMR spectroscopy is a vital analytical tool across science. It is a powerful technique that can provide detailed information on the three-dimensional structure and dynamics of molecules in solution and the solid state e
and whispering galleries are found in applications ranging from sensing, spectroscopy and communications to the generation of laser frequency combs.
Imperial College London and the University of Buenos aires have published the results of a study testing a silicon nanodevice in the journal Nature Communications("Non-plasmonic nanoantennas for surface enhanced spectroscopies with ultra-low
Common laboratory analytical techniques such as Raman and fluorescence spectroscopy determine the properties of biological molecules,
The researchers at IBS used a multi-technique approach, combining solid-state NMR spectroscopy, simulations of molecular dynamics and X-ray crystallography.
"I believe that this work will benefit researchers in the area of surface plasmonics by providing a new strategy/design for enhancing the surface enhanced Raman spectroscopy (SERS) detection limit,
#Shape-shifting molecule tricks viruses into mutating themselves to death A newly developed spectroscopy method is helping to clarify the poorly understood molecular process by
Supporting data were collected with two-dimensional infrared spectroscopy, an advanced laser technique that combines ultrafast time resolution with high sensitivity to chemical structure.
Critical tool"Two-dimensional infrared spectroscopy will be critical on the path ahead. It lets us look at the structures that exist in aqueous solution,
With 2d infrared spectroscopy, the UCHICAGO team was able to distinguish between the two structures.
The hints given us by the spectroscopy guide us toward even better mutagenic molecules, "Essigmann said.
imaging and spectroscopy. Imaging using terahertz waves is similar to imaging using X-rays, but unlike X-rays it is not a form of ionizing radiation.
However, for spectroscopy applications, "such as analyzing food for poisons or baggage for drugs or explosives it is useful for the terahertz radiation to be as'broadband'as possible,"
Buccheri explains that spectroscopy works by looking at which frequencies are absorbed by certain materials. Different materials have different spectra--they have peaks and troughs at different frequencies.
"Spectroscopy is like taking a picture, "said Buccheri.""If the camera has a low resolution,
The direction of the spin can be detected with the aid of fluorescence spectroscopy. Extremely fast spin oscillation In this latest publication, the scientists have shaken the resonators in a way that allows them to induce a coherent oscillation of the coupled spin for the first time.
Raman spectroscopy and transport measurements on the graphene/boron nitride heterostructures reveals high electron mobilities comparable with those observed in similar assemblies based on exfoliated graphene.
The team's concept then adds Raman spectroscopy to its centrifugal microfluidic platform.""Raman spectroscopy uses the way light interacts with matter to produce'unique scattering,'the equivalent of a molecular fingerprint,
which can then be used to identify the types of bacteria present, "said Ute Neugebauer, group leader at the Jena University Hospital and Leibniz Institute of technology.
The team will continue toward its goal of developing an easy-to-use spectroscopy-based point-of-care medical device for fast and reliable diagnostics."
The research was reported in the journal Nature Methods in a paper titled, ltrahigh-throughput single-molecule spectroscopy and spectrally resolved super-resolution microscopy,
The market for spectroscopy equipment is dominated by German manufacturers says the scientist. Our new sensor which was developed in Germany
Spectroscopy showed that these artificial membranes were stable over a wide range of temperatures. More work is needed to standardize the process by
The technique called quartz-enhanced photoacoustic absorption spectroscopy (QEPAS invented at Rice by Tittel, Professor Robert Curl and their collaborators in 2002,
Using near infrared spectroscopy the device connects with a mobile app and a cloud-based database of items to quickly scan
#New Method to See Inside Supercapacitors at the Atomic Level By using a combination of nuclear magnetic resonance (NMR) spectroscopy
Given that, few sensing techniques can match the buzz created by surface-enhanced Raman spectroscopy (SERS.
Other Diseases Researchers at the University of Adelaide in Australia are using optical spectroscopy to develop a quick,
of a sample of gas. ur device will use broadband cavity-enhanced frequency-comb spectroscopy to achieve sensitivities to molecular concentrations in the low parts-per-million,
A team of scientists used a newly developed reaction chamber to combine x-ray absorption spectroscopy and electron microscopy for an unprecedented portrait of a common chemical reaction.
x-ray absorption spectroscopy (XAS. In XAS, a beam of x-rays bombards the catalyst sample and deposits energy as it passes through the micro-reactor.
and Raman spectroscopy-and plans to introduce other complex and complementary x-ray and electron probe techniques over time.
"Through Laboratory Directed Research and development funding, we will be part of the initial experiments at the Submicron Resolution X-ray (SRX) Spectroscopy beamline this summer,
Rice physicists build superconductor analog, observe antiferromagnetic order February 23rd, 2015quantum Computing Forbidden quantum leaps possible with high-res spectroscopy March 2nd,
at USC Los angeles. They focus mainly on optical spectroscopy and electron transport at the nanometer scale.
Analytical techniques including photoluminescence spectroscopy (PL), Raman spectroscopy, atomic force microscopy (AFM), and electron energy loss spectroscopy (EELS) are used to follow the effects of the plasma treatments on a range of samples having different numbers of layers.
The authors successfully demonstrate the generation of an indirect-to-direct bandgap transition in many-layer Mos2 through the use of an easy to use, scalable oxygen induced plasma process.
When later Boyd examined the copper plate using Raman spectroscopy, a technique used for detecting and identifying graphene,
They discharged a very small current between the electrodes to create a spatial map of the underlying tissue based upon the flow of electricity at different frequencies, a technique called impedance spectroscopy.
"Our device is a comprehensive demonstration that tissue health in a living organism can be mapped locally using impedance spectroscopy,
"In the past, people have used impedance spectroscopy for cell cultures or relatively simple measurements in tissue. What makes this unique is extending that to detect
a simple but very sensitive sensor based on fluorescence spectroscopy was presented by using cadmium telluride quantum dots to quickly measure protamine drug.
low production cost and the availability of the devices required for tracing signal (fluorescence spectroscopy device) c
"Raman and infrared spectroscopy are the two tools that one uses to see molecular structure, "Bhargava said."
We use spectroscopy to confirm the formulation as well as visualize the delivery of the particles and drug molecules."
including optical and infrared microscopy and spectroscopy experiments, thermodynamic experiments, and computer simulation and modeling. They are currently working on adapting the engineering lessons learned from the study of Saharan silver ants to create flat optical components,
New technique combines electron microscopy and synchrotron X-rays to track chemical reactions under real operating conditions A team of scientists used a newly developed reaction chamber to combine x-ray absorption spectroscopy and electron microscopy for an unprecedented portrait of a common chemical reaction.
x-ray absorption spectroscopy (XAS. In XAS, a beam of x-rays bombards the catalyst sample and deposits energy as it passes through the micro-reactor.
and Raman spectroscopy--and plans to introduce other complex and complementary x-ray and electron probe techniques over time.
"Through Laboratory Directed Research and development funding, we will be part of the initial experiments at the Submicron Resolution X-ray (SRX) Spectroscopy beamline this summer,
2015green Chemistry Methods Used in Iran to Produce Zinc oxide nanoparticles June 27th, 2015laser spectroscopy: A novel microscope for nanosystems June 25th, 2015iranian Researchers Synthesize Nanostructures with Controlled Shape, Structure June 25th, 2015discoveries June 29th, 2015efforts to Use Smart Nanocarriers to Cure Leukemia Yield
infrared absorption spectroscopy. In the standard method, light is used to excite the molecules, which vibrate differently depending on their nature.
as supported by electron energy loss spectroscopy (EELS) measurements and also by the fact that no anelastic behaviour could be observed under tension.
because the material naturally works at near-infrared wavelengths, this could enable new avenues for infrared spectroscopy,
#New anotechnology promises to make surface-enhanced Raman spectroscopy simpler (Nanowerk News) From airport security detecting explosives to art historians authenticating paintings,
Given that, few sensing techniques can match the buzz created by surface-enhanced Raman spectroscopy (SERS.
A Universal Surface-Enhanced Raman Spectroscopy Substrate for All Excitation Wavelengths"),the photonics advancement aims to improve our ability to detect trace amounts of molecules in diseases, chemical warfare agents, fraudulent
issue of Physical Review Letters("Strong Asymmetric Charge Carrier Dependence in Inelastic Electron Tunneling Spectroscopy of Graphene Phonons").
The technique, called inelastic electron tunneling spectroscopy, elicits only a small blip that can be hard to pick out over more raucous disturbances."
By using a combination of nuclear magnetic resonance (NMR) spectroscopy and tiny scales sensitive enough to detect changes in mass of a millionth of a gram,
from the characterization of nanomaterials and biological nanosystems to spectroscopy of quantum emitters s
#Sensors and drones: hi-tech sentinels for crops (Nanowerk News) Sensors and drones can be among the farmers'best friends,
including time-lapse crystallography and single-crystal spectroscopy, to slow down the reaction rate by nearly 10,000 times.
The researchers used time-lapse crystallography and single-crystal spectroscopy to observe intermediate steps of the reaction."
and fluorescence spectroscopy as well as UV curing and disinfection. A further application field is plant lighting, for
Arrayat the fair, the FBH exhibits novel dual-wavelength diode lasers that are suitable for use in miniaturized, portable laser measurement systems for Raman spectroscopy applications.
The innovative diode laser chip is ideally applicable for SERDS (Shifted Excitation Raman Difference Spectroscopy), enabling to measure Raman spectra under real-world conditions even in highly fluorescent environments
Moreover, SERDS improves the detection limit by one order of magnitude compared to standard Raman spectroscopy. With these FBH tiny monolithic light sources on chip level, a compact SERDS measurement head that is only as small as a laser pointer was realized for the first time.
This device is the basis for a unique miniaturized and versatile SERDS spectroscopy system, enabling in-situ measurements in various security and health relevant fields including biology, medicine, food control, and pharmacy.
Applications in absorption spectroscopy and for generating terahertz radiation are also conceivable. Arrayfiber-coupled demonstrators newly developed at FBH for industrial use aim at integrating laser radiation with high spectral brightness into various systems
from the characterization of nanomaterials and biological nanosystems to spectroscopy of quantum emitters. e
#Nanostructure design enables pixels to produce two different colors depending on polarization of incident light Through precise structural control,
The group used single-molecule fluorescence spectroscopy to watch the codes being used by the satellite tobacco necrosis virus, a single stranded RNA plant virus.
because the material naturally works at near-infrared wavelengths, this could enable new avenues for infrared spectroscopy,
They used spectroscopy to confirm the formulation as well as visualize the delivery of the particles and drug molecules.
Whereas, the latter use infrared tissue spectroscopy, wherein the sensor measures the intensity of light absorbed by alcohol, to zero in on the blood alcohol level.
utilizing spectroscopy to measure alcohol levels in skin tissue. Infrared light will shine on the driver's skin upon touching a sensor
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