Raman small particles. Medical search. Frequent questions

However, the information required by the European authorities and even in janimine the Raman spectra of small molecules. (abruzzo.it)
That branch of spectroscopy concerned with Raman spectra and used to provide a means of studying pure rotational, pure vibrational and rotation-vibration energy changes in the ground level of molecules. (photonics.com)
However, the signals from water molecules are very weak in Raman spectra, meaning wet samples can be more accurately analysed. (edinst.com)
However, the RM5 from Edinburgh Instruments offers Confocal Raman Microscopy with a selection of up to 3 lasers, reducing the interference and improving the quality of spectra. (edinst.com)
Raman spectra are produced when a beam of light is scattered by a collection of molecules, causing the frequency of the light to change. (chemistryworld.com)
Raman spectra produced by organic molecules are often weak, but attaching gold or silver nanoparticles can increase the intensity. (chemistryworld.com)
COINs containing these compounds produced unique Raman spectra, and those containing different combinations of the compounds also produced unique spectra. (chemistryworld.com)
A notable increase in the intensity ratio of the D band to G band in the Raman spectra indicates that the FG has more edge defects due to their smaller crystallite sizes. (researchsquare.com)
Like a fingerprint, the Raman spectra of various molecules differ. (uni-hannover.de)
It allows real-time recording of Raman spectra over a large wavenumber range of more than 2000 cm-1 in 8 ms. In this work, the required phase matching conditions in the nonlinear crystal, as well as the influence of the dispersion on the output spectra, are discussed in detail. (uni-hannover.de)
Raman spectroscopy: brings out other information than IR absorption spectra. (lu.se)

The structure and electronic state of the obtained CNT-ND hybrid material were studied using optical and electron microscopy and Infrared, Raman, X-ray photoelectron and near-edge X-ray absorption fine structure spectroscopy. (nature.com)
This Perspective discusses how different single particle imaging and spectroscopy techniques together with electron microscopy can be applied to reveal the relationships between the plasmonic response and the morphology of individual nanoparticles as well as their assemblies. (acs.org)
Learn more about Raman microscopy and Raman spectroscopy, and the different applications the technology offers for analysis. (thermofisher.com)
Advances in Raman microscopy and imaging have made the technique accessible to a wide variety of researchers, regardless of expertise or field of study. (thermofisher.com)
Learn how Raman microscopy and imaging can help you answer your research questions. (thermofisher.com)
This article outlines the need for more research into microplastics and how Raman microscopy offers unique advantages for microplastic analysis and identifying the chemical composition of the material. (edinst.com)
Due to its high spatial resolution, Raman microscopy allows the smallest particle size to be examined. (edinst.com)
Raman microscopy is proving to be a vital method for microplastic analysis. (edinst.com)
We describe design and characterization of an aerosol NanoSpotTM collector, designed for collection of airborne particles on a microscopy substrate for direct electron and optical microscopy, and laser spectroscopy analysis. (cdc.gov)
Particles as small as 7 nm were activated and collected on the electron microscopy stub. (cdc.gov)
The collected particle samples were analyzed using electron microscopy and Raman spectroscopy for the acquisition of the particle spatial distribution, the spot sample uniformity, and the analyte concentration. (cdc.gov)
Finally, the NanoSpotTM collector's analytical measurement sensitivity for laser Raman analysis and counting statistics for fiber count measurement using optical microscopy were calculated and were compared with those of the conventional aerosol sampling methods. (cdc.gov)
After transfer to filters, these can then be further investigated, which is primarily done using microscopy and subsequent verification of the identified microplastic particles via spectroscopic methods such as FTIR and Raman spectroscopy. (zeiss.com)
X-ray diffraction, Raman spectroscopy, X-ray Photoelectron spectroscopy, scanning and transmission electron microscopy were used to characterise the thin films which exhibited a columnar morphology together with smaller equi-axed particles. (whiterose.ac.uk)
Aggregated haematite particles (α-Fe 2 O 3 ) about 6 ∼ 8 μm in diameter are also identified inside the vascular canals using confocal Raman microscopy, where the organic remains were preserved. (nature.com)
In this work, different sizes of graphite flakes for preparation of graphene oxide (GO) were tested and the final characterization of the resulting GO was focused on a quick and reliable methods such as Raman and UV-Vis spectroscopy, atomic force microscopy, and surface plasmon resonance. (muni.cz)
The ultimate goal of microscopy is to make the smallest things visible and what could be smaller than the building blocks of matter: atoms and molecules. (aip.org)
However, some modern techniques are able to circumvent this limit through different means, such as fluorescence-based stimulated emission depletion (STED), 1 photoactivated localization microscopy (PALM), 2 stochastic optical reconstruction microscopy (STORM), 3 and near-field methods such as scanning near-field optical microscopy (SNOM), 4 and tip-enhanced Raman spectroscopy (TERS). (aip.org)
Infrared microscopy can do both, but is unsuited to analysing very small particles and is also challenged by the particle morphology. (renishaw.com.cn)
Concentrated collection of aerosol particles on a substrate is essential for their chemical analysis using various microscopy and laser spectroscopic techniques. (cdc.gov)

Surface-enhanced Raman spectroscopy or surface-enhanced Raman scattering (SERS) is a surface-sensitive technique that enhances Raman scattering by molecules adsorbed on rough metal surfaces or by nanostructures such as plasmonic-magnetic silica nanotubes. (wikipedia.org)
The answer is atoms and molecules, teeny-tiny particles that we cannot see with our eyes, but scientists have developed many different ways to distinguish. (tamu.edu)
Raman scattering is the inelastic scattering of a photon by molecules. (tamu.edu)
That may ultimately make it possible to detect very small amounts of such organic molecules as DNA and biomarkers, found in bodily fluids, for particular diseases. (rdworldonline.com)
If we take the spectrum of organic molecules in solution and compare it to when they are adsorbed on a gold particle, the difference can be millions of times," he said. (rdworldonline.com)
As a laser beam is transmitted through a combustion environment the interaction between laser photons and atoms/molecules or particles results in scattering or fluorescence, which upon detection can provide information on quantities such as flame temperature and species concentration. (lu.se)

A Northern Arizona University (NAU) research team, led by professor Miguel José Yacamán, is developing a new test technology for SARS-CoV-2 using single-molecule surface-enhanced Raman spectroscopy (SM-SERS). (photonics.com)
This publication highlights the important research topic of extracellular vesicles (EVs) which were studied using Timegated® Raman (TG-Raman) and surface-enhanced Timegated® Raman spectroscopy (TG-SERS). (timegate.com)
Raman with SERS enhancement and without disturbing fluorescence is highly interesting since this serves as a potential technique to screen EVs even on the level of single EVs. (timegate.com)
We further assessed the efficacy of time-gated Raman spectroscopy (TG-RS) and surface-enhanced time-gated Raman spectroscopy (TG-SERS) to characterize EVs. (timegate.com)
While the conventional continuous wave excitation Raman spectroscopy did not provide a notable signal, prominent signals were obtained with the TG-RS that were further enhanced in the TG-SERS. (timegate.com)
The process of deciphering the original hues of the painting involved Surface Enhanced Raman Spectroscopy (SERS), which unlike the x-ray fluorescence often used in art conservation was able to use incredibly small particles of the paint to reveal their composition. (hyperallergic.com)
Here, we report a surface enhanced Raman scattering technology for rapid and label-free exosomal detection (Exo-SERS) to aid in the discrimination of different cancer cells based on specific Raman phenotypes and multivariate statistical analysis. (mdpi.com)
This deposition technique can be applied to a variety of colloidal systems, including the fabrication of conductive and antireflective coatings, surface-enhancing Raman scattering (SERS) substrates, and lithographic masks. (ncsu.edu)
Highly active and stable substrates for surface-enhanced Raman scattering (SERS) can be fabricated by using colloidal crystals to template gold nanoparticles into structured porous films. (ncsu.edu)
Raman spectroscopy (SERS). (rdworldonline.com)

In this application note, we present a reproducible and time-effective method for fast and thorough morphological and chemical characterization of microplastics using a semi-automated scanning of particles coupled to micro-Raman spectroscopy. (horiba.com)
Careful analysis using a number of different spectrographic methods - including energy dispersive X-ray spectroscopy (SEM-EDS) and micro-Raman spectroscopy - revealed the blue pigment to be made from lapis lazuli. (mpg.de)

Recently, this interest in the contamination of aquatic systems by plastics has shifted to smaller particles, microplastics. (horiba.com)
In recent years, Raman Spectroscopy has been found to be a key technique in identifying the chemical composition of ocean microplastics. (edinst.com)
Its ability to investigate such small samples and utilise multiple laser wavelengths to avoid background interference make the technique hugely advantageous as we further our understanding of how microplastics impact in our environment and potentially could impact human health. (edinst.com)
Edinburgh Instruments offers Raman Microscopes that can help to identify the chemical composition of microplastics, and therefore study the impact on human health. (edinst.com)
Microplastics" are microscopic particles fabricated for products like facial scrubs, or produced when physical, chemical, and biological forces break down larger pieces of plastic debris. (newswise.com)
Nanoplastics are particles even smaller than microplastics, with sizes ranging from 1 nanometer to 1,000 nanometers or a micron. (newswise.com)
Unfortunately, these make their way into the environment and cause significant pollution, not only as bulk material but also as microplastics: small, hard-to-spot, particles. (renishaw.com.cn)
A Danish research institute is using a Raman spectroscopy system, from Renishaw, to help its clients understand and reduce the amount of microplastics in the environment. (renishaw.com.cn)

Also, browse the resources at the bottom of this page to see how you can put Thermo Scientific Raman spectrometers and microscopes to work for your specific application. (thermofisher.com)
Are you interested in other applications of our Raman Spectrometers? (edinst.com)
Among them, Raman spectrometers are a specific type of scattering spectrometer that measures minute frequency shifts in scattered light, which are related to the molecular vibrational modes of the sample. (msesupplies.com)

Stimulated Raman spectroscopy is a powerful chemical analysis technique that provides information about the investigated material composition by selectively stimulating a molecular vibrational transition. (uni-hannover.de)
In contrast to spontaneous Raman spectroscopy, which is based on inelastic scattering with low efficiency, stimulated Raman spectroscopy is a coherent process. (uni-hannover.de)
In this dissertation, a non-collinear optical parametric oscillator (NOPO) is evaluated for stimulated Raman spectroscopy. (uni-hannover.de)
Furthermore, the NOPO in combination with stimulated Raman spectroscopy allows real-time observation of mixtures of substances. (uni-hannover.de)

There are examples using UV, Raman and fluorescence. (abruzzo.it)
A large variety of techniques are being developed and applied, for example laser-induced fluorescence (LIF) for imaging of species concentrations, coherent anti-Stokes Raman spectroscopy (CARS) for temperature measurements, structured laser illumination for spray characterization, laser-induced incandescence (LII) for characterization of soot particles, and laser radar (LIDAR) concepts for single-ended diagnostics over large distances. (lu.se)

In a second step, the mineral components (e.g. sand) are separated from the microplastic particles by density separation. (zeiss.com)
Another challenge is a lack of automation, especially for identifying microplastic particles on the filter. (zeiss.com)
Furthermore, microplastic particles are detected. (uni-hannover.de)

Signatures of Small Morphological Anisotropies in the Plasmonic and Vibrational Responses of Individual Nano-objects. (acs.org)
Engineered deposition of coatings from nano- and micro-particles: A brief review of convective assembly at high volume fraction. (ncsu.edu)
Abstract In this paper, we review the state of the art of a simple, easily controlled convective assembly technique for rapid deposition of structured micro- and nano-particle coatings. (ncsu.edu)
Our focus is on the application of different microorganisms to CFA, the domestication of microorganisms, preprocessing of CFA to facilitate effective biometallurgical processes, the use of bioreactors, and synthesis of nano silica particles. (researchgate.net)

The spectral shift and the widening of the Raman line belonging to CdS evidences the lattice stress on the CdS/In 2 O 3 interfaces and confirms the formation of a close contact between the nanoparticles. (beilstein-journals.org)
Researchers at US microprocessor company Intel have developed a nanoscale particle that generates millions of different Raman spectral signatures. (chemistryworld.com)
Using a diagrammatic approach we furthermore show that the molecular spectral function serves as a direct precursor of the elusive Fulde-Ferell-Larkin-Ovchinnikov phase, which is realized for a finite density of fermionic impurity particles. (arxiv.org)
Then it produces Raman maps of the particles, using height tracking to keep a good focus, and uses advanced spectral analysis to identify the plastics and inorganics. (renishaw.com.cn)

Coupling the Raman spectrometer with a confocal microscope allows us to visualise tiny particles, helping to create a clearer picture of the material and potential harmful impacts on humans. (edinst.com)
Key steps taken during Microplastic Analysis using the RM5 Raman Microscope. (edinst.com)
But Anita Radini, an archaeologist at the University of York in Britain, saw something under the microscope she wasn't expecting: "It looked like nothing I had seen before - bright blue particles, almost like robins' eggs. (metrovoicenews.com)
They use their existing Renishaw inVia™ confocal Raman microscope so extensively that they purchased an inVia Qontor system, to increase their Raman capacity. (renishaw.com.cn)
The microscope automatically locates the particles and determines their sizes and statistics. (renishaw.com.cn)

The chemical theory is based on resonance Raman spectroscopy, in which the frequency coincidence (or resonance) of the incident photon energy and electron transition greatly enhances Raman scattering intensity. (wikipedia.org)

Single particle spectroscopy techniques have therefore become the standard for understanding how the energy of the localized surface plasmon of individual nanoparticles scales with small changes in the morphology. (acs.org)
In this work we show theoretically how the molecular state can be directly prepared experimentally even in its excited state using state-of-the-art cold atom Raman spectroscopy techniques. (arxiv.org)

Aerosol optical tweezers represent a complimentary tool to single-particle mass spectrometry, which Sullivan also uses to study individual atmospheric particles. (cmu.edu)
Single-Particle Investigation of Plexcitons in Bimetallic Nanorods. (acs.org)
Controlled Overgrowth of Five-Fold Concave Nanoparticles into Plasmonic Nanostars and Their Single-Particle Scattering Properties. (acs.org)
With the previous system, when a single particle flows through we can measure its buoyant mass, but we don't get any information about whether it's a very small, dense particle, or maybe a large, not-so-dense particle. (cytofluidix.com)

The earth's atmosphere is full of airborne particles called aerosols. (cmu.edu)

Currently, there are many different Raman techniques that are widely used and range from microscopic imaging, high-resolution spectroscopy and even the detection of fatality inducing spores such as anthrax. (tamu.edu)
A spot deposit of approximately 0.7-mm diameter is formed for particles over a broad particle diameter range, for effective coupling with microscopic and spectroscopic analysis. (cdc.gov)
But the spectroscopic methods of FTIR and Raman are also based on optical (microscopic) identification, in which the light source is replaced by a laser excitation source of specific wavelengths. (zeiss.com)
The particles suspended inside evaporating sessile droplets can be assembled into microscopic objects with long-ranged ordered structure. (ncsu.edu)

Optical tweezers take advantage of the small forces exerted by light to trap and gently manipulate small particles or droplets. (cmu.edu)
Surface-guided templating of particle assemblies inside drying sessile droplets. (ncsu.edu)
A technique for fabrication of porous hemispherical particle assemblies by drying small droplets on silanized surfaces is presented. (ncsu.edu)

The field enhancement is greatest when the plasmon frequency, ωp, is in resonance with the radiation ( ω = ω p / 3 {\displaystyle \omega =\omega _{p}/{\sqrt {3}}} for spherical particles). (wikipedia.org)

Very small and very large nanostructures each present a unique set of challenges, and a separate strategy for each kind of sample is necessary for fully revealing the relationships among size, shape, orientation, and spacing between nanoparticles. (acs.org)
Role of the micro- and nanostructure in the performance of surface-enhanced Raman scattering substrates assembled from gold nanoparticles. (ncsu.edu)
A new technique invented at MIT can measure the relative positions of tiny particles as they flow through a fluidic channel, potentially offering an easy way to monitor the assembly of nanoparticles, or to study how mass is distributed within a cell. (cytofluidix.com)
Research shows for the first time that plastic nanoparticles can cross the human placenta, possibly exposing the developing fetus to the tiny materials that are increasingly used in medicines, vaccines and personal care products. (whale.to)
The smaller nanoparticles (50, 80, and 240 nm) appeared on the fetal side of the placenta within 15 minutes after injection, while the larger particles (500 nm) stayed on the maternal side for the six-hour duration of the study. (whale.to)

When it comes to viewing these building blocks of life, this new technique attains low-background coherent Raman scattering that is controlled by a tunable infrared laser. (tamu.edu)
The technique developed by Yakovlev is called Mid-infrared Assisted Coherent anti-Stokes Raman Scattering/Spectroscopy (MIRA CARS) and is an entirely new technique. (tamu.edu)

Other tattooists may use any pointed object to place pigment particles into the various layers of the dermis or epidermis. (medscape.com)

Particle filter material choice for Raman and FTIR. (bruker.com)

As these particles travel in the air, they encounter and react with other chemicals such as secondary organic aerosol, evolving into a chemically complex goop. (cmu.edu)
Within this tiny core was an emulsion that contained more secondary organic aerosol particles. (cmu.edu)
pH is important to many chemical processes that we can study directly using optical tweezers, including aerosol particle structure, its chemical reactivity and evolution, and even protein folding," said Sullivan. (cmu.edu)
This paper presents measurements of mineral dust concentration in the diameter range from 0.4 to 14.0 µm with a novel balloon-borne optical particle counter, the Universal Cloud and Aerosol Sounding System (UCASS). (nerc.ac.uk)
The aerosol optical depth at 500 nm reached values up to 0.5 during that event over Cyprus, and particle number concentrations were as high as 50 cm−3 for the diameter range between 0.8 and 13.9 µm. (nerc.ac.uk)

Experimental evidence suggests an extremely high, possibly even sub-molecular, spatial resolution of tip-enhanced Raman spectroscopy (TERS). (aip.org)

Plastic particles are not easy to detect even with the use of microscopes and often resemble natural substances in their shape. (zeiss.com)

But there exists a well-established alternative: Raman beams are used to connect neighboring Zeeman states, inducing spin-orbit coupling and leading to a circular path along a trajectory that's comprised of one spatial dimension and one synthetic "spin" dimension. (uni-kl.de)
While the underlying mechanism is currently still under discussion, two main contributions are considered: The involved plasmonic particles are able to highly confine light to small spatial regions in the near-field, i.e., the electromagnetic effect and the chemical effect due to altered molecular properties of the sample in close proximity to the plasmonic tip. (aip.org)

The researchers found their particles returned signals 25 times stronger than similar nanorods with smooth surfaces. (rdworldonline.com)
With further advancements, this technology has the potential to resolve the shape of objects in flow as small as viruses, the researchers say. (cytofluidix.com)
In this study, the researchers wanted to see if they could gain more information about a collection of particles, such as their individual sizes and relative positions. (cytofluidix.com)
The cumulative sum of these effects allows the researchers to determine not only the mass, but also the position of each particle. (cytofluidix.com)
The particles flow along the entire cantilever in about 100 milliseconds, so a key advance that allowed the researchers to take rapid measurements at each point along the channel was the incorporation of a control system known as a phase-locked loop (PLL). (cytofluidix.com)
This allows the researchers to rapidly measure any changes caused by particles flowing through the channel. (cytofluidix.com)
In this paper, the researchers tracked two particles as they flowed through a channel together, and showed they could distinguish the masses and positions of each particle as it flowed. (cytofluidix.com)
Researchers call their new method shell-isolated nanoparticle-enhanced Raman spectroscopy, or SHINERS. (whale.to)
Just by making stuff smaller researchers have discovered forms of materials and even completely new materials that can be applied as diversely as better drugs, better paints or faster electronics. (cdc.gov)

Optical tweezers allow us to simulate the chemical evolution of particles much closer to what happens in the actual atmosphere. (cmu.edu)
Raman spectroscopy is essential to competitive academic research in many applied scientific disciplines, including materials science, life science research, and chemical and biological engineering. (thermofisher.com)
Most of these were based on the use of catalyst particles, including the chemical vapour deposition (CVD) route. (springer.com)
The Raman signal showed characteristic changes in the amide regions due to alteration in the chemical bonds of the EV proteins. (timegate.com)
The performed quantum chemical simulations reveal a pronounced enhancement of the Raman intensity under non-resonant and resonant conditions with respect to the uncharged reference system, while the contribution of charge transfer phenomena and of locally excited states of SnPc is highly dependent on the tip's charge. (aip.org)
Raman spectroscopy is a highly useful technique for analyzing molecular structures, lattice vibrations, and chemical bond information. (msesupplies.com)

Even though there is so far not much evidence that simply nanosize leads to toxicological properties that are different from the bulk material or unique for the nanosize, many studies have shown that nanoscale particles can be more biologically active such as eliciting greater pulmonary inflammation at a given mass dose 5 6 . (cdc.gov)

The only remarkable aspect to her remains was the blue particles found in her teeth. (mpg.de)
It came as a complete surprise - as the calculus dissolved, it released hundreds of tiny blue particles," recalls co-first author Anita Radini of the University of York. (mpg.de)
The blue particles, it turns out, were lapis lazuli, a semi-precious stone that was highly prized at the time for its vivid color and was ground up and used as a pigment. (metrovoicenews.com)

Scientists are rushing to study the tiny plastic particles that are in marine animals - and in us. (zeiss.com)
It is important to accurately separate plastic particles from all others, as only then can their number, shape and size be determined. (zeiss.com)
The tiny plastic particles are ubiquitous in our modern society. (uni-hannover.de)
Morten Køcks and colleagues at the Danish Technological Institute (DTI, Aarhus, Denmark) are working both with private companies and the Danish Environmental Protection Agency on technologies to remove plastic particles from the aqueous environment, for example, waste water. (renishaw.com.cn)

Magnified view of lapis lazuli particles embedded within the dental calculus of a woman from the Middle Ages. (mpg.de)

The Rotating Disk Thermodiluter 379020A is highly regarded in the field of particle emission measurement, especially for sampling, diluting and conditioning exhaust from diesel and spark-ignition engines. (etesters.com)
Measurement report: Balloon-borne in situ profiling of Saharan dust over Cyprus with the UCASS optical particle counter. (nerc.ac.uk)
An overestimation of the UCASS-derived extinction coefficient of a factor of 2 compared to the lidar measurement was found for layers with particle number concentrations that exceed 25 cm−3, i.e. in the centre of the dust plume where particle concentrations were highest. (nerc.ac.uk)
In the future, profile measurements of the particle number concentration and particle size distribution with the UCASS could provide a valuable addition to the measurement capabilities generally used in field experiments that are focussed on the observation of coarse aerosols and clouds. (nerc.ac.uk)

Measure air particles, temperature (IR and air), with this affordable air quality tester for environmental and safety testing. (etesters.com)

First, the field enhancement magnifies the intensity of incident light, which will excite the Raman modes of the molecule being studied, therefore increasing the signal of the Raman scattering. (wikipedia.org)
Dr. Vladislav Yakovlev, professor in the Department of Biomedical Engineering at Texas A&M University, has recently had a breakthrough with one of these ways, Raman scattering. (tamu.edu)
The theory for the new Raman scattering method was developed by Dr. Marlan Scully, Zhenhuan Yi and Luqi Yuan of the Institute of Quantum Science and Engineering and Department of Physics and Astronomy at Texas A&M. Their experimental research eventually became the groundwork for Yakovlev. (tamu.edu)
Scattering occurs when light interacts with small particles or structures within the sample, resulting in changes in the direction and energy of the light. (msesupplies.com)

The goal of this technology is to manipulate atomic and molecular particles to create devices that are thousands of times smaller and faster than those of the current microtechnologies. (photonics.com)

prulifloxacin Since, at most, the particle size may depend upon aziswift the shape and resolution. (abruzzo.it)
This includes background interference such as water, and of course the very small sample size. (edinst.com)
This is important as the human gut can only absorb particles smaller than 150 µm so being able to investigate samples of this size is vital when researching the impacts of plastic on human health. (edinst.com)
Proper dilution and conditioning of exhaust emissions is essential to obtain accurate size distribution and particle number measurements. (etesters.com)
Comparisons of the total particle number concentration and the particle size distribution from two cases of balloon-borne measurements with aircraft observations show reasonable agreement in magnitude and shape despite slight mismatches in time and space. (nerc.ac.uk)
This is likely the result of a variation in the refractive index and the shape and size dependency of the extinction efficiency of dust particles along the UCASS measurements. (nerc.ac.uk)
For a long time, our group has been interested in size amplification of particles," he said. (rdworldonline.com)
They are increasingly used in engineering applications, as well as medicine and personal care products where their small size helps move drugs and ingredients through the body. (whale.to)
OVA-DS displayed the smallest particle size and turbidity, while OVA-κC-ACN exhibited the largest ones. (bvsalud.org)
The low density and small size of these bridges, and aneuploid chromosome number biologically persistent particles makes respiratory were observed. (cdc.gov)
The findings and conclusions in this report are those of the authors and do not necessarily represent the views of the National Institute for Occu- sity and small size of carbon nanotubes makes respiratory pational Safety and Health. (cdc.gov)

8 The raw material concentration by floatation generally utilizes the surface physicochemical properties of water-repellent (hydrophobic) particles to enable to float with air bubbles in order to form a froth 9 and together with which fine particles move upwards and float on the water surface. (researchsquare.com)
The effects of major parameters controlling the process, including contact angle, particle concentration, and electrolyte, were investigated in detail. (ncsu.edu)

Iijima analysed the deposit on the cathode and found macroscopic amounts of multi-walled carbon nanotubes (MWNTs) and facetted graphitic particles. (springer.com)

Tiny Dots, Big Impact: The Luminous World of Quantum. (bruker.com)
Our results pave the way to a systematic understanding of how composite particles form in quantum many-body environments and provide a basis to develop new schemes for the observation of exotic phases of quantum many-body systems. (arxiv.org)

The increase in intensity of the Raman signal for adsorbates on particular surfaces occurs because of an enhancement in the electric field provided by the surface. (wikipedia.org)
The Raman peak intensity was consistently highest for nanoporous substrates with three-dimensionally ordered micropores, and decreases if the micropores are not ordered or not templated. (ncsu.edu)
The intensity change of the input radiation provides information about the strength of the Raman transition. (uni-hannover.de)

An impurity interacting with an ultracold Fermi gas can form either a polaron state or a dressed molecular state in which the impurity forms a bound state with one gas particle. (arxiv.org)
This molecular state features rich physics, including a first-order transition to the polaron state and a negative effective mass at small interactions. (arxiv.org)

Raman spectroscopy can be used to analyse samples as small as 1 µm in diameter with the latest research studying the possibility of measuring the even smaller nanoplastics. (edinst.com)

This emulsified state of secondary organic aerosols has implications for the particles' behavior that we hadn't even considered," said Sullivan. (cmu.edu)
As no one had previously studied secondary organic aerosols using optical tweezers, we weren't aware that it could form a colloid of tiny liquid-like particles suspended in a droplet. (cmu.edu)

Nanomaterials are tiny particles, crafted from atoms of metals, plastics and a variety of other materials. (whale.to)

Extinction coefficient inferred from the balloon-borne measurements agrees with those derived from coinciding Raman lidar observations at height levels with particle number concentrations smaller than 10 cm−3 for the diameter range from 0.8 to 13.9 µm. (nerc.ac.uk)

Raman spectroscopy is a versatile vibrational technique and excels at identifying both organic and inorganic compounds in solids and liquids. (thermofisher.com)
These materials are composed basically by polymeric matrix based on methacrylate monomers, inorganic filler particles, silane and photo-initiator system 3 . (bvsalud.org)

The Raman signal is then further magnified by the surface due to the same mechanism that excited the incident light, resulting in a greater increase in the total output. (wikipedia.org)
For those frequencies for which the Raman signal is only slightly shifted from the incident light, both the incident laser light and the Raman signal can be near resonance with the plasmon frequency, leading to the E4 enhancement. (wikipedia.org)
When the frequency shift is large, the incident light and the Raman signal cannot both be on resonance with ωp, thus the enhancement at both stages cannot be maximal. (wikipedia.org)
Raman spectroscopy is dependent on the collision of incident light quanta with the molecule, inducing the molecule to undergo the change. (photonics.com)

The rapid analysis of large number of collected particles allows for an exhaustive assessment of both large sample sizes and small subsamples. (horiba.com)
So, to provide a comprehensive analysis system, Køcks and co-workers have turned to Raman spectroscopy. (renishaw.com.cn)

For the first time, with this paper the writers Anatoliy Samoylenko, Martin Kögler, Artem Zhyvolozhnyi, Olha Makieieva, Geneviève Bart, Sampson S. Andoh, Matthieu Roussey, Seppo J. Vainio & Jussi Hiltunen show that Timegated® Raman can distinguish between the low level of oxygen deficiency (hypoxia) and normoxia of EVs and that it is a fast and far less expensive method than mass-spectroscopy, showing comparable results. (timegate.com)

The trapping laser induces a Raman vibrational spectrum from the droplet, which is collected using the same lens. (cmu.edu)
He then exposes the droplet to different types of gases and particles and measures data each second as the droplet's composition evolves over the course of a day, or even days. (cmu.edu)

Our research with monodisperse polystyrene latex showed that a volumetric flux balance incorporating the evaporating solvent and assembling particle fluxes can accurately relate the deposition process parameters to the coating structure and properties. (ncsu.edu)

They started with seed particles of highly purified gold nanorods with pentagonal cross-sections developed by Zubarev's laboratory in 2008 and added them to a mixture of silver nitrate, ascorbic acid, and gold chloride. (rdworldonline.com)

Raman spectroscopy is rapidly gathering momentum as a valuable laboratory tool - an interesting development for a technique discovered in 1929. (thermofisher.com)

We present an ongoing series of complimentary half-hour to one-hour webinars that reveal how the Thermo Scientific Raman instrumentation can improve your work. (thermofisher.com)

Anatomy5

Organisms4

Chemicals and Drugs28

Analytical, Diagnostic and Therapeutic Techniques and Equipment17

Phenomena and Processes12

Disciplines and Occupations2

Technology, Industry, Agriculture7

Information Science1

Health Care2

Spectra11

Microscopy20

Molecules6

SERS10

Micro-Raman spectr2

Microplastics8

Spectrometers3

Stimulated Raman spectroscopy4

Fluorescence2

Microplastic particles3

Nano4

Spectral4

Microscope5

Electron1

Spectroscopy techniques2

Single-particle4

Airborne particles1

Microscopic4

Droplets3

Spherical1

Nanoparticles5

Coherent2

Pigment particles1

FTIR1

Aerosol5

TERS1

Microscopes1

Spatial2

Researchers9

Chemical6

Nanoscale1

Blue particles3

Plastic particles4

Lapis lazuli1

Measurement4

Temperature1

Scattering4

Atomic1

Size11

Concentration2

Graphitic1

Quantum2

Intensity3

Molecular2

Nanoplastics1

Aerosols2

Nanomaterials1

Concentrations1

Inorganic2

Incident light4

Analysis2

Distinguish1

Droplet2

Accurately1

Nanorods1

Technique1

Reveal1