Environmental FIB/SEM (Quanta)
The environmental scanning electron microscope (ESEM) is a new-generation SEM that can image samples under controlled environments and temperatures. Three-dimensional section analysis morphology, focused ion beam, electron backscattering diffraction, and energy dispersive X-ray analysis make this a versatile instrument for the user program. This instrument provides added capability in SEM imaging with an advanced ability to analyze wet and insulating materials as well as samples at elevated temperatures under controlled gaseous environments.
This instrument:
- Provides precise 3D imaging and compositional analysis at the nanometer scale
- Is ideal for the compositional and size analysis of aerosols and atmospheric particles
- Enables investigation of buried interfaces with nanomachining capabilities
- Enables temperature- and environment-dependent composition analysis.
Instrument ID:
34138
Availability: 10 hours a day, 5 days a week
Custodians
| Alexander Laskin | (509) 371-6129 | Alexander.Laskin@pnnl.gov |
| Scott Lea | (509) 371-6233 | scott.lea@pnnl.gov |
Publications
We report tip-enhanced Raman scattering experiments in which topographic and local electric field images are recorded simultaneously. We employ a...
The micro-structural modifications produced in MgO single crystals exposed to medium-energy heavy ions (1.2-MeV Au) were investigated using...
We record time-resolved nonlinear photoemission electron microscopy (tr-PEEM) images of propagating surface plasmons (PSPs) launched from a...
We study the chemical expansion for neutral and charged oxygen vacancies in fluorite, rocksalt, perovskite and pyrochlores materials using first...
Cloud water and below-cloud atmospheric particle samples were collected onboard a research aircraft during the Southern Oxidant and Aerosol Study (...
Methacryoyl peroxynitrate (MPAN), the acylperoxyl nitrate of methacrolein, has been suggested to be an important secondary organic aerosol (SOA)...
Experimental verification of the microscopic origin of resistance switching in metal/oxide/metal heterostructures is needed for applications in non-...
For applications of tristructural isotropic (TRISO) fuel particles in high temperature reactors, release of radioactive Ag isotope (110mAg) through...
We report the results of a VAMAS (Versailles Project on Advanced Materials and Standards) interlaboratory study on the measurement of composition in...
Magnetic properties including, saturation induction, resistivity, Curie temperature, etc., that make soft magnetic materials attractive for...
We investigate the plasmonic properties of a self-assembled 2D array of Ag nanospheres (average particle diameter/inter-particle separation distance...
Combined x-ray diffraction and first-principles studies of various epitaxial rutile-type metal dioxide films on Al2O3(0001) substrates reveal an...
Cost-effective yet safe creation of high-permeability reservoirs within deep bedrock is the primary challenge for the viability of enhanced...
Organic carbon (OC) accounts for a large fraction of atmospheric aerosol and has profound effects on air quality, atmospheric chemistry and climate...
Most 5d transition-metal (TM) pyrochlores exhibit metallic behavior, but 3d and 4d TM
pyrochlores are generally electronic semiconductors or...
The microstructure and chemistry of SmCo2Fe2B melt-spun alloy after multistage annealing was investigated using high resolution transmission electron...
Grain growth of nanocrystalline materials is generally thermally activated, but can also be driven by irradiation at much lower temperature. In...
We record sequences of Raman spectra at a plasmonic junction formed by a gold AFM tip in contact with a silver surface coated with 4,4’-...
The occurrence of plutonium dioxide (PuO2) either from direct deposition or from the precipitation of plutonium-bearing solutions in contaminated...
In0.20Ga0.80N/GaN multi-quantum wells grown on [0001]-oriented GaN substrates with and without an InGaN buffer layer were characterized using three-...
In order to study the potential swelling behavior of the ODS ferritic alloy MA957 at very high dpa levels, specimens were prepared from pressurized...
Tailored metal alloy thin film-oxide interfaces generated using molecular beam epitaxial (MBE) deposition of alloy thin films on a single crystalline...
Nonlinear photoemission electron microscopy of isolated nanoholes in gold thin films map propagating surface plasmon polaritons (SPPs) launched from...
The metallic compound MnBi is a promising rare-earth-free permanent magnet material. Compare to other rare-earth-free candidates, MnBi stands out for...
The Stopping and Range of Ions in Matter (SRIM) code has been widely used to predict nuclear stopping power and angular distribution of ion-solid...
The microbial reduction of Fe(III) and U(VI) were investigated in shallow aquifer sediments collected from subsurface Pleistocene flood deposits near...
Anthropogenic coal fly ash aerosols may represent a significant source of bioavailable iron in the open ocean. Few measurements have been made to...
The influences of Mn3+ ions on the properties of high voltage spinel LiNi0.5Mn1.5O4 is systematically investigated in this work. The content of Mn3+...
A Pd/ZnO/Al2O3 catalyst was developed for the synthesis of methanol and dimethyl ether (DME) from syngas. Studied were temperatures of operation...
A new SnSb/C nanocomposite based on Na alloying reactions is demonstrated as anode for Na-ion battery applications. The electrode can achieve an...
We report on CdS/CdTe photovoltaic devices that contain a thin Ta2O5 film deposited onto the CdS window layer by sputtering. We show that for...
The mineral respiring bacterium Shewanella oneidensis uses a protein complex, MtrCAB, composed of two decaheme cytochromes brought together inside a...
We employ the atom-centered density-matrix propagation method to illustrate how time-dependent structural and conformational changes affect the...
New photocathode materials capable of producing intense and directed electron pulses are needed for development of next generation light sources and...
This paper presents an analysis of the aerosol chemical composition, optical properties and size distributions for a range of conditions encountered...
In this work, we synthesized monoclinic Li3V2(PO4)3 nanobelts via a single-step, solid-state reaction process in a molten hydrocarbon. The as-...
Functionalized graphene sheets (FGS) are successfully utilized as a novel air electrode for Li-O2 batteries. An extremely high capacity of 15,000 mAh...
Co3O4 exhibits intriguing physical, chemical and catalytic properties and has demonstrated great potential for next-generation renewable energy...
PtAu alloy nanoparticles (~ 3.2 nm in diameter) are synthesized in poly(diallyldimethylammonium chloride) (PDDA) aqueous solution and uniformly...
Some bacterial species are able to utilize extracellular mineral forms of iron and manganese as respiratory electron acceptors. In Shewanella...
The simultaneous nanometer spatial confinement and femtosecond temporal control of an optical excitation has been a long-standing challenge in optics...
A cost effective and scalable method is developed to prepare a core-shell structured Si/B4C composite with graphite coating with high efficiency,...
The chemical composition of secondary organic aerosol (SOA) generated from the ozonolysis of isoprene (C5H8) in the presence of an OH scavenger was...
Certain biogenic secondary organic aerosols (SOA) become absorbent and fluorescent when exposed to reduced nitrogen compounds such as ammonia, amines...
We report the design, synthesis, thermal, and photophysical properties of two phosphine oxide based electron transport/hole blocking materials, 2,6-...
Knowledge of the spatially-resolved composition of atmospheric particles is essential for differentiating between their surface versus bulk chemistry...
A series of cathodes using Pt supported onto graphene sheets with different contents of carbon black in the catalyst layer were prepared and...
A consistent methodology for obtaining enthalpy of formation of Fe2+- containing binary and multicomponent oxides using high temperature oxide melt...
Technetium is an important environmental contaminant introduced by the processing and disposal of irradiated nuclear fuel and atmospheric nuclear...
The defect photoluminescence from TiO2 nanoparticles in the anatase phase is reported for nanosheets which expose predominantly (001) surfaces, and...
Characterization of the chemical composition and chemical transformations of secondary organic aerosol (SOA) is both a major challenge and the area...
Carbonaceous aerosols are responsible for large uncertainties in climate models, degraded visibility, and adverse health effects. The Carbonaceous...
Nanospray desorption electrospray ionization (Nano-DESI) combined with high-resolution mass spectrometry (HR/MS) is a promising approach for detailed...
Atmospheric aging of naturally emitted marine aerosol often leads to formation of internally mixed particles composed of sea salts and water soluble...
Periodic spin-polarized density functional theory calculations were performed to investigate acetaldehyde (CH3CHO) hydrodeoxygenation on the reduced...
Molecular dynamics simulations have been carried out to characterize the structure and solubility of chitosan nanoparticle-like structures as a...
The strong Mo-O bond strength provides promising reactivity of Mo-based catalysts for the deoxygenation of biomass-derived oxygenates. Combining the...
The feasibility of using an online thermal-desorption electron-ionization high-resolution aerosol mass spectrometer (AMS) for the detection of...
We describe the synthesis and characterization of superparamagnetic iron oxide nanoparticle based heavy metal sorbents with various surface...
A systematic study based on first-principles calculations along with a quasi-harmonic approximation has been conducted to calculate the thermodynamic...
Functionalized nanoporous silica, often referred to as self-assembled monolayers on mesoporous supports (SAMMS) have previously demonstrated the...
The structural properties of high-quality epitaxial (Fe1-xCrx)2O3 thin films are investigated across the composition range. Epitaxial films are...
The goal of this study was to quantify the contribution of extracellular polymeric substances (EPS) in U(VI) immobilization by Shewanella sp. HRCR-1...
Electrospray ionization high-resolution mass spectrometry (ESI HR-MS) was used to probe molecular structures of oligomers in secondary organic...
Aqueous extracts of secondary organic aerosols (SOA) generated from the ozonolysis of dlimonene were subjected to dissolution, evaporation, and re-...
Cloud and aerosol data acquired by the National Research Council of Canada (NRC) Convair-580 aircraft in, above, and below single-layer arctic...
A novel nanospray desorption electrospray ionization (nano-DESI) approach is presented and its analytical applications are demonstrated for trace...
The development of the ab initio molecular dynamics (AIMD) method has made it a powerful tool in describing ion–solid interactions in...
We have developed an automated data analysis method for atmospheric particles using scanning transmission X-ray microscopy coupled with near edge X-...
This work demonstrates the utility of a particle-into-liquid sampler (PILS) a technique traditionally used for identification of inorganic ions...
Atmospheric particles often include a complex mixture of nitrate and secondary organic materials accumulated within the same individual particles....
The fate of pertechnetate (99Tc(VII)O4 -) during bioreduction was investigated in the presence of 2-line ferrihydrite (Fh) and various dissimilatory...
Mesoporous carbon (MC) with tunable pore sizes (22nm, 12nm, 7nm, and 3nm) and pore volumes (from 1.3 to 4.8 cc/g) containing sulfur inside the pores...
It is well known that upon lithiation both crystalline and amorphous Si transform to a armorphous LixSi phase, which subsequently crystallizes to a (...
We have developed automated sensor and monitoring devices for trace radionuclides in water, using preconcentrating columns and radiometric detection...
Aerosol samples from the 2010 CalNex field study in Bakersfield (BF) and Los Angeles (LA) were analyzed using positive mode nanospray-desorption...
The critical challenge facing the lithium ion battery development is the basic understanding of the structural evolution during the cyclic operation...
Medical implants, like cardiovascular devices, improve the quality of life for countless individuals but may become infected with bacteria like...
We present results of a combined two-photon photoemission and scanning electron microscopy investigation to determine the electromagnetic enhancement...
Temperature-dependent Void Formation and Growth At Ion-irradiatedNanocrystalline CeO2–Si Interfaces.
Ceria is a thermally stable ceramic that has numerous applications in the nuclear industry, including use in nuclear fuels and waste forms. Recently...
The γ-proteobacterium Shewanella oneidensis MR-1 possesses a periplasmic [NiFe]-hydrogenase (MR-1 [NiFe]-H2ase) that was implicated in both...
Over the past few decades use of an increasing array of molecular-level analytical probes has provided new detailed insight into mineral and...
Applying surface coatings to alloying anodes for Li-ion batteries can improve rate capability and cycle life, but it is unclear how this second phase...
Characterization of SuperLig® 620 solid phase extraction resin was performed in order to develop an automated on-line process monitor for...
The applicability of high resolution electrospray ionization mass spectrometry (HR ESI-MS) to measurements of the average oxygen to carbon ratio (O/C...
Chemical composition of nascent soot in burner-stabilized, premixed ethylene-oxygen argon flames was studied using micro-FTIR spectroscopy. The...
Thin films of nanocrystalline ceria deposited onto a silicon substrate have been irradiated with 3 MeV Au+ ions to a total dose of 34 displacements...
Photoelectron emission microscopy (PEEM) is a versatile technique that can image a variety of materials including metals, semiconductors and even...
Ever increasing energy needs have raised the demands for advanced fuels and cladding materials that withstand the extreme radiation environments with...
Here we report that poly(diallyldimethylammonium chloride) (PDDA) acts as both a reducing agent and a stabilizer to prepare soluble graphene...
The challenge of optimizing both performance and safety in nanomaterials hinges
on our ability to resolve which structural features lead to desired...
Transition metal modified Rh-catalysts can be used for converting syngas (CO+H2) into C2+ oxygenates. It has been found that Mn has a favorable...
Copper(II) ferrocyanide immobilized inside mesoporous silica MCM-41 supports (Cu-FC-EDA-SAMMSTM) has been evaluated against iron(III)...
Quantitative analysis of individual compounds in complex mixtures using high-resolution electrospray ionization mass spectrometry (HR-ESI-MS) is...
Indium-free transparent conducting oxides may provide a lower cost solution for the transparent anode in flexible displays and energy efficient solid...
We have studied desorption of Br atoms from thin crystalline CsBr films grown on KBr(100) and LiF(100) induced by ultraviolet laser irradiation at...
Natural and prescribed biomass fires are a major source of atmospheric aerosols that can persist in the atmosphere for long periods of time. Biomass...
Papers based biosensors such as lateral flow test strips and paper-based microfluidic devices (or paperfluidics) are inexpensive, rapid, flexible,...
Abstract: The catalytic roles of Co0 and Co2+ during steam reforming of ethanol were investigated over Co/MgO catalysts. Catalysts with different...
The degradation of the ionic pathway throughout the catalyst layer in proton exchange membrane fuel cells was studied under an accelerated stress...
Polycyclic aromatic hydrocarbons (PAHs) known for their harmful health effects undergo long-range transport (LRT) when adsorbed on and/or absorbed in...
Grazing incidence infrared reflection absorption spectroscopy (IRRAS) for in situ and in real time characterization of substrates modified by soft-...
Aerosol samples from the CalNex 2010 field study were analyzed using high resolution mass spectrometry (HR-MS) coupled to a nanospray-desorption/...
We report high efficiency and low roll-off for blue electrophosphorescent organic light emitting devices (OLEDs) based on a mixed host layer...
Ambient aerosol properties were measured in the field campaign of the Study of Houston Atmospheric Radical Precursors and Surface-induced Oxidation...
Lithium-ion battery (LIB) is one of the most promising power sources to be deployed in electric vehicles (EV), including solely battery powered...
In the present study, the properties of a series of non-platinum based nanoscale tantalum oxide/tungsten oxide-carbon composite catalysts was...
The stability and migration of Kr, I and Xe in bulk ZrO2 and on the ZrO2(111) surface have been studied by standard density functional theory (DFT)...
Internal structures, hygroscopic properties and heterogeneous reactivity of mixed CH3SO3Na/NaCl particles were investigated using a combination of...
Atomistic simulations were performed to study the diffusion and adsorption of Ca2UO2(CO3)3 and of some of its constituent species, i.e., UO22+, CO32...
Atmospheric organic aerosols (OA) represent a significant fraction of airborne particulate matter and can impact climate, visibility, and human...
We have demonstrated high-efficiency turquoise-blue electrophosphorescence from the complex Pt(ptp)2 = bis[3,5–bis(2–pyridyl)...
Highly alkaline nuclear waste solutions have been released from underground nuclear waste storage tanks and pipelines into the vadose zone at the U.S...
This study reports on heterogeneous ice nucleation activity of predominantly organic or coated with organic material anthropogenic particles sampled...
Radiation response of nanocrystalline ceria films deposited on a silicon substrate was investigated under a 3-MeV Au-ion irradiation at 300 K. A...
The electrochemical behavior for Pt catalysts supported on multiwalled carbon nanotubes and Vulcan XC-72 in proton exchange membrane fuel cells under...
Density functional theory calculations have been carried out to study the stability and migration of charged oxygen interstitials in ThO2 and CeO2....
Epitaxial films along the Fe3-xTixO4 (titanomagnetite) compositional series from pure end-members magnetite (Fe3O4) to ulvöspinel (Fe2TiO4)...
The bacterial enzyme organophosphorous hydrolase (OPH) exhibits both catalytic and substrate promiscuity. It hydrolyzes bonds in a variety of...
Graphene sheets have been extensively studied as a key functional component of graphene-based nanocomposites for electronics, energy, catalysis,and...
Magnetically-separable and highly-stable enzyme system was developed by adsorption of enzymes in superparamagnetic hierarchically ordered...
The evaluation of developed technologies and research on new detection approaches require the ability to generate explosive vapors in the gas phase...
This paper reports development of a lithium-ion battery nanostructure device using a single nanowire for in-stu TEM study of the battery. This...
Accurate knowledge of ion distribution and electronic stopping power for heavy ions in light targets is highly desired due to the large errors in...
We report the first real-time transmission electron microscopy (TEM) observations of the structural evolution and phase transformation of lithium-ion...
Accurate information on electronic stopping power is fundamental for broad advances in materials science, electronic industry, space exploration, and...
Charge injection and transport in bottom-contact regioregular-poly(3-hexylthiophene) (rr-P3HT) based field-effect transistors (FETs), wherein the Au...
Bioavailable iron from atmospheric aerosol is an essential nutrient that can control oceanic productivity, thereby impacting the global carbon budget...
Hollow core-shell structured porous Si-C nanocomposites with void space up to tens of nanometers are designed to accommodate the volume expansion...
The enzyme organophosphorous hydrolase (OPH) catalyzes the hydrolysis of a wide variety of organophosphorous compounds with high catalytic efficiency...
Lipopolysaccharides (LPS) are the main constituent of the outer bacterial membrane of Gram-negative bacteria. Lipid-A is the structural region of LPS...
Thiol-Ene Induced Diphosphonic Acid Functionalization of Superparamagnetic Iron Oxide Nanoparticles.
Multi-functional organic molecules represent an interesting challenge for nanoparticle functionalization due to the potential for undesirable...
Lithium-sulfur (Li-S) batteries have recently attracted extensive attention due to the high theoretical energy density and potential low cost. Even...
Low cost, high performance redox flow batteries are highly demanded for up to multi-megawatt levels of renewable and grid energy storage. Here, we...
Atmospheric absorption by brown carbon aerosol may play an important role in global radiative forcing. Brown carbon arises from both primary and...
Although it has been shown that size of atmospheric particles has a direct correlation with their ability to act as cloud droplet and ice nuclei, the...
A simple ball-milling method is used to synthesize a tin oxide-silicon carbide/few-layer graphene core-shell structure in which nanometer-sized SnO2...
Crystals of goethite were synthesized with reduced technetium [99Tc(IV)] incorporated within the solid lattice. The presence of 99Tc(IV) as a...
We report on a joint theoretical and experimental investigation of the electronic structure of a series of bis(diphenylphosphine oxide) derivatives...
Lipopolysaccharides (LPS) comprise the outermost layer of the Gram-negative bacteria cell envelope. Packed onto a lipid layer, the outer membrane...
Nitrogen-doped graphene (N-graphene) is obtained by exposing graphene to nitrogen plasma. N-graphene exhibits much higher electrocatalytic activity...
A method is established and validated using molecular dynamics (MD) to determine the displacement threshold energies as Ed in nanolayered,...
Metallic or alloy nanoparticles exposed to air at room temperature will be instantaneously oxidized and covered by an oxide layer. However, for most...
Grain growth of nanocrystalline materials is generally thermally activated, but can also be driven by irradiation at much lower temperature. In...
Lithiation-induced-strain (LIS) in electrode materials plagues the performance and lifetime of lithium ion batteries (LIBs). Controlling the LIS is...
Nanospray desorption electrospray ionization (nano-DESI) combined with high-resolution mass spectrometry was used for the first time for the analysis...
Ion profiles in polymer light-emitting electrochemical cells are known to significantly affect performance and stability, but are not easily measured...
We report blue organic light-emitting devices with iridium (III) bis[(4,6-difluorophenyl)-pyridinato-N,C2’]picolinate (FIrpic) as an...
Chemistry occurring in the liquid and liquid surface is important in many applications. Chemical imaging of liquids using vacuum based analytical...
An instrument has been designed and constructed that enables in situ reactivity and time of flight secondary ion mass spectrometry (TOF-SIMS)...
Molecular dynamics (MD) simulations were employed with empirical potentials to study the effects of multilayer interfaces and interface spacing in Al...
In the event of an accidental or intentional release of radionuclides into a populated area, three things must occur in a timely manner: food and...
Computational and experimental studies were performed to explore heterogeneous reduction of U6+ by structural Fe2+ at magnetite (Fe3O4) surfaces....
Sequestration of uranium (U) by magnetite is a potentially important sink for U in natural and contaminated environments. However, molecular-scale...
Conductivity dopants with processing properties suitable for industrial applications are of importance to the organic electronics field. However, the...
Fluorinated hydrogen-bond acidic groups are directly attached to the backbone of single walled carbon nanotubes (SWCNTs) without the introduction of...
We compute the Raman spectra of 1,3-propanedithiol (PDT) in the gas phase, in methanol, linked either to the face or vertex of a finite tetrahedral...
In addition to the electric field E(r), the associated magnetic field H(r) and current density J(r) characterize any electromagnetic device,...
Time and frequency dependent intensity variations in sequences of Raman spectra recorded at plasmonic junctions can be assigned to molecular...
Scanning Transmission X-ray Microscopy combined with Near Edge X-ray Absorption Fine Structure Spectroscopy (STXM/NEXAFS), and optical microscopy...
The effect of UV irradiation on the molecular composition of aqueous extracts of secondary organic aerosol (SOA) was investigated. SOA was prepared...
Time-dependent reduction of PuO2(am) was studied over a range of pH values in the presence of aqueous Fe(II) and magnetite (Fe3O4) nanoparticles. At...
The generation of calibrated vapor samples of explosives compounds remains a challenge due to the low vapor pressures of the explosives, adsorption...
The O-H bond distribution of hydroxyl groups at the {110} goethite (R-FeOOH) surface was investigated by molecular dynamics. This distribution was...
Significantly enhanced immobilization of radionuclides (such as 90Sr and 137Cs) due to adsorption and coprecipitation with neo-formed colloid-sized...
Methods to detect botulinum toxin, the most poisonous substance known, are reviewed. Current assays are being developed with two main objectives in...
Ab initio molecular dynamics simulations of low-energy recoil events in ThO2, CeO2, and ZrO2 have been carried out to determine the threshold...
Understanding of molecular composition and fundamental chemical transformations of organic aerosols (OA) during their formation and aging is both a...
An automated fluidic instrument is described that rapidly determines the total 99Tc content of aged nuclear waste samples, where the matrix is...
True nanoscale optical spectroscopy requires the efficient delivery of light for a spatially nanoconfined excitation.We utilize adiabatic plasmon...
Chemical imaging analysis of internally mixed sea salt/organic particles collected on board the Department of Energy (DOE) G‐1 aircraft...
We report the synthesis, photophysical and organic light-emitting device (OLED) properties of an organic molecular p-dopant 1,3,4,5,7,8-...
We use multi-photon photoemission electron microscopy (PEEM) to image the enhanced electric fields of silver nanoparticles supported on a silver thin...
Synthesized goethite was successfully used with addition of Fe(II) to sequester Tc present in both deionized water and simulated off-gas scrubber...
The chloromethylation of activated carbon is described. Chloromethylation was found to produce a carbon derivative with a surface area of 1357 m2/g...
A renewable surface biosensor for rapid detection of botulinum toxin is described based on fluidic automation of a fluorescence sandwich immunoassay...
A bead-based sandwich immunoassay for botulinum neurotoxin serotype A (BoNT/A) has been developed and demonstrated using a recombinant 50 kDa...
A fluorescence sandwich immunoassay using high affinity antibodies and quantum dot (QD) reporters has been developed for detection of botulinum toxin...
The rapid growth in the use of in vitro methods for nanoparticle toxicity assessment has proceeded with limited consideration of the unique kinetics...
The growing commerce in micro- and nanotechnology is expected to increase our exposure to submicron and nanoscale particles. One of the main targets...
An automated, flow-through spore lysis instrument that is capable of rapidly disrupting bacterial spores is described. The system utilizes a flow-...
A stable and robust trypsin-based biocatalytic system was developed and demonstrated for proteomic applications. The system utilizes polymer...
Nanobiocatalysis with enzymes incorporated into nanostructured materials have emerged as a rapidly growing area. Structures including nanoporous...
In this work, we explore the dispersibility of octanethiol-stabilized gold nanocrystals of different core sizes in compressed ethane and propane over...
The development of more efficient and greener methods for the synthesis and manipulation of nanomaterials has been a major focus of research among...
Strontium-90 is an environmental contaminant at several U.S. Department of Energy sites, including the Hanford Site, WA. Due to its high biological...
A preconcentrating minicolumn sensor for pertechnetate detection in water consists of a packed bed containing a mixture of anion exchange resin and...
Quick Specs
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Science Highlights
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Projects
Electrical, optical and mechanical properties of inorganic nanostructures have strong relationships with their morphologies. For example, one-...
Atmospheric aerosols have a profound effect on climate by scattering and absorbing solar and terrestrial radiation. They can be predominantly...
The first goal of this research program is to develop a robust method to quantify the atomic scale changes in structure, composition and bonding that...
This proposal aims to provide molecular insight into elementary reaction steps and their kinetics in condensed phases at an atomic and molecular...
The goal of this proposal is to understand the microstructural evolution during non-equilibrium, rapid solidification of a molten magnesium-aluminum-...