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RDX (121-82-4)

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  • 1.
    The "refereed" or "peer review" status of a journal comes from the Ulrichsweb Global Serials Directory (http://ulrichsweb.serialssolutions.com/), as supplied by the publisher. The term refers to the system of critical evaluation of manuscripts/articles by professional colleagues or peers. The content of refereed publications is sanctioned, vetted, or otherwise approved by a peer-review or editorial board. The peer-review and evaluation system is utilized to protect, maintain, and raise the quality of scholarly material published in serials. Publications subject to the referee process are assumed, then, to contain higher quality content than those that are not.
    Peer
    Reviewed
    Journal
    Article
    Solution structure of selenoprotein W and NMR analysis of its interaction with 14-3-3 proteins

    Authors: Aachmann, FL; Fomenko, DE; Soragni, A; Gladyshev, VN; Dikiy, A
    (2007) Journal of Biological Chemistry 282:37036-37044.
    Minus Sign. Click to see only selected choices. Selenium is a trace element with significant biomedical potential. It is essential in mammals due to . . . Plus Sign. Click to expand choices. Selenium is a trace element with significant biomedical potential. It is essential in mammals due to its occurrence in several proteins in the form of selenocysteine (Sec). One of the most abundant mammalian Sec-containing proteins is selenoprotein W (SelW). This protein of unknown function has a broad expression pattern and contains a candidate CXXU (where U represents Sec) redox motif. Here, we report the solution structure of the Sec13-->Cys variant of mouse SelW determined through high resolution NMR spectroscopy. The protein has a thioredoxin-like fold with the CXXU motif located in an exposed loop similarly to the redox-active site in thioredoxin. Protein dynamics studies revealed the rigidity of the protein backbone and mobility of two external loops and suggested a role of these loops in interaction with SelW partners. Molecular modeling of structures of other members of the Rdx family based on the SelW structure identified new conserved features in these proteins, including an aromatic cluster and interacting loops. Our previous study suggested an interaction between SelW and 14-3-3 proteins. In the present work, with the aid of NMR spectroscopy, we demonstrated specificity of this interaction and identified mobile loops in SelW as interacting surfaces. This finding suggests that 14-3-3 are redox-regulated proteins.
    Tagged With: PubMed, Excluded/Not on Topic, Not relevant, Not chemical specific, Database Searches - 2013 (private), Database searches, Pubmed
  • 2.
    The "refereed" or "peer review" status of a journal comes from the Ulrichsweb Global Serials Directory (http://ulrichsweb.serialssolutions.com/), as supplied by the publisher. The term refers to the system of critical evaluation of manuscripts/articles by professional colleagues or peers. The content of refereed publications is sanctioned, vetted, or otherwise approved by a peer-review or editorial board. The peer-review and evaluation system is utilized to protect, maintain, and raise the quality of scholarly material published in serials. Publications subject to the referee process are assumed, then, to contain higher quality content than those that are not.
    Peer
    Reviewed
    Journal
    Article
    Morphological Variations of Explosive Residue Particles and Implications for Understanding Detonation Mechanisms

    Authors: Abdul-Karim, N; Blackman, CS; Gill, PP; Morgan, RM; Matjacic, L; Webb, R; Ng, WH
    (2016)
    Minus Sign. Click to see only selected choices. The possibility of recovering undetonated explosive residues following detonation events is well-known; . . . Plus Sign. Click to expand choices. The possibility of recovering undetonated explosive residues following detonation events is well-known; however, the morphology and chemical identity of these condensed phase postblast particles remains undetermined. An understanding of the postblast explosive particle morphology would provide vital information during forensic examinations, allowing rapid initial indication of the explosive material to be microscopically determined prior to any chemical analyses and thereby saving time and resources at the crucial stage of an investigation. In this study, condensed phase particles collected from around the detonations of aluminized ammonium nitrate and RDX-based explosive charges were collected in a novel manner utilizing SEM stubs. By incorporating the use of a focused ion beam during analysis, for the first time it is possible to determine that such particles have characteristic shapes, sizes, and internal structures depending on the explosive and the distance from the detonation at which the particles are recovered. Spheroidal particles (10-210 μm) with microsurface features recovered following inorganic charge detonations were dissimilar to the irregularly shaped particles (5-100 μm) recovered following organic charge firings. Confirmatory analysis to conclude that the particles were indeed explosive included HPLC-MS, Raman spectroscopy, and mega-electron volt-secondary ionization mass spectrometry. These results may impact not only forensic investigations but also the theoretical constructs that govern detonation theory by indicating the potential mechanisms by which these particles survive and how they vary between the different explosive types.
    Tagged With: Database Searches - May 2016 (private), New May 2016 (private), PubMed 5/16, Database searches, Pubmed, Excluded/Not on Topic, Not relevant, Other
  • 3.
    The "refereed" or "peer review" status of a journal comes from the Ulrichsweb Global Serials Directory (http://ulrichsweb.serialssolutions.com/), as supplied by the publisher. The term refers to the system of critical evaluation of manuscripts/articles by professional colleagues or peers. The content of refereed publications is sanctioned, vetted, or otherwise approved by a peer-review or editorial board. The peer-review and evaluation system is utilized to protect, maintain, and raise the quality of scholarly material published in serials. Publications subject to the referee process are assumed, then, to contain higher quality content than those that are not.
    Peer
    Reviewed
    Journal
    Article
    The Spatial Distribution of Postblast RDX Residue: Forensic Implications

    Authors: Abdul-Karim, N; Morgan, R; Binions, R; Temple, T; Harrison, K
    (2012) Journal of Forensic Sciences.
    Minus Sign. Click to see only selected choices. Locating exactly where trace explosive residue samples should be sought during sample collection at . . . Plus Sign. Click to expand choices. Locating exactly where trace explosive residue samples should be sought during sample collection at bomb scenes is not specified in the published literature or guidelines; in this area, it is generally acknowledged that forensic practices are based on tradition rather than evidence. This study investigated patterns in the spatial distribution of postblast 1,3,5-trinitro-1,3,5-triazocyclohexane residue from a series of unconfined detonations, over a range of sampling sites, and at two different detonation heights. The amount of residue recovered from the sites decreased as a function of distance from the center of the explosion. [Correction added after online publication 27 December 2012: In the preceding sentence, "increased" was corrected to "decreased" to agree with the conclusion of the article.] As the height of the detonations increased, more residues were found from all sampling sites. The findings of this empirical study have a number of important practical implications including determining where residue samples are best sought at crime scenes.
    Tagged With: PubMed, Secondary Literature and Sources of Other RDX Information, Fate and Transport / Exposure levels, Database Searches - 2013 (private), Database Searches - January 2014 (private), Pubmed - 1/2014, Database searches, Pubmed
  • 4.
    The "refereed" or "peer review" status of a journal comes from the Ulrichsweb Global Serials Directory (http://ulrichsweb.serialssolutions.com/), as supplied by the publisher. The term refers to the system of critical evaluation of manuscripts/articles by professional colleagues or peers. The content of refereed publications is sanctioned, vetted, or otherwise approved by a peer-review or editorial board. The peer-review and evaluation system is utilized to protect, maintain, and raise the quality of scholarly material published in serials. Publications subject to the referee process are assumed, then, to contain higher quality content than those that are not.
    Peer
    Reviewed
    Journal
    Article
    Wavefront Velocity Oscillations of Carbon-Nanotube-Guided Thermopower Waves: Nanoscale Alternating Current Sources

    Authors: Abrahamson, JT; Choi, W; Schonenbach, NS; Park, J; Han, JH; Walsh, MP; Kalantar-zadeh, K; Strano, MS
    (2011) ACS Nano 5:367-375.
    Minus Sign. Click to see only selected choices. The nonlinear coupling between exothermic chemical reactions and a nanowire or nanotube with large axial . . . Plus Sign. Click to expand choices. The nonlinear coupling between exothermic chemical reactions and a nanowire or nanotube with large axial heat conduction results in a self-propagating thermal wave guided along the nanoconduit. The resulting reaction wave induces a concomitant thermopower wave of high power density (>7 kW/kg), resulting in an electrical current along the same direction. We develop the theory of such waves and analyze them experimentally, showing that for certain values of the chemical reaction kinetics and thermal parameters, oscillating wavefront velocities are possible. We demonstrate such oscillations experimentally using a cyclotrimethylene-trinitramine/multiwalled carbon nanotube system, which produces frequencies in the range of 400 to 5000 Hz. The propagation velocity oscillations and the frequency dispersion are well-described by Fourier's law with an Arrhenius source term accounting for reaction and a linear heat exchange with the nanotube scaffold. The frequencies are in agreement with oscillations in the voltage generated by the reaction. These thermopower oscillations may enable new types of nanoscale power and signal processing sources.
    Tagged With: PubMed, Excluded/Not on Topic, Not relevant, Not chemical specific, Database Searches - 2013 (private), Database searches, Pubmed
  • 5.
    The "refereed" or "peer review" status of a journal comes from the Ulrichsweb Global Serials Directory (http://ulrichsweb.serialssolutions.com/), as supplied by the publisher. The term refers to the system of critical evaluation of manuscripts/articles by professional colleagues or peers. The content of refereed publications is sanctioned, vetted, or otherwise approved by a peer-review or editorial board. The peer-review and evaluation system is utilized to protect, maintain, and raise the quality of scholarly material published in serials. Publications subject to the referee process are assumed, then, to contain higher quality content than those that are not.
    Peer
    Reviewed
    Journal
    Article
    Remediating RDX-contaminated ground water with permanganate: laboratory investigations for the Pantex perched aquifer

    Authors: Adam, ML; Comfort, SD; Morley, MC; Snow, DD
    (2004) Journal of Environmental Quality 33:2165-2173.
    Minus Sign. Click to see only selected choices. Ground water beneath the U.S. Department of Energy Pantex Plant is contaminated with the high explosive . . . Plus Sign. Click to expand choices. Ground water beneath the U.S. Department of Energy Pantex Plant is contaminated with the high explosive RDX (hexahydro-1,3,5-trinitro-1,3,5 triazine). The USDOE Innovative Treatment and Remediation Demonstration (ITRD) program identified in situ oxidation by permanganate as a technology fit for further investigation. We evaluated the efficacy of KMnO(4) to transform and mineralize RDX by determining degradation kinetics and carbon mass balances using (14)C-RDX. Aqueous RDX solutions (2-5 mg L(-1)) and RDX-contaminated slurries (50% solids, w/v) were treated with KMnO(4) at 1000, 2000, 4000, and 20000 mg L(-1). Treating an aqueous RDX solution of 2.8 mg L(-1) with 20000 mg KMnO(4) L(-1) decreased RDX to 0.1 mg L(-1) within 11 d while cumulative mineralization proceeded for 14 d until 87% of the labeled carbon was trapped as (14)CO(2). Similar cumulative mineralization was obtained when Pantex aquifer material was included in the solution matrix. Other experiments using 4000 mg KMnO(4) L(-1) showed that initial RDX concentrations (1.3-10.4 mg L(-1)) or initial pH (4-11) had little effect on reaction rates. Attempts to identify RDX degradates and reaction products showed that N(2)O was a product of permanganate oxidation and constituted 20 to 30% of the N balance. Time-course measurements of a (14)C-RDX solution treated with KMnO(4) revealed few (14)C-labeled degradates but through liquid chromatography-mass spectrometry (LC-MS) analysis, we present evidence that 4-nitro-2,4-diaza-butanol is formed. Aquifer microcosm studies confirmed that the transformation products not mineralized by KMnO(4) were much more biodegradable than parent RDX. These results indicate permanganate can effectively transform and mineralize RDX in the presence of aquifer material and support its use as an in situ chemical oxidation treatment for the Pantex perched aquifer.
    Tagged With: PubMed, Excluded/Not on Topic, Not relevant, Treatment/Remediation, Database Searches - 2013 (private), Database searches, Pubmed
  • 6.
    Technical Report
    Technical
    Report
    Adsorption and Transformation of Explosives in Low-Carbon Aquifer Soils

    (2000)
    Minus Sign. Click to see only selected choices. Disposal operations from the manufacturing processes of the explosives 2,4,6-trinitrotoluene (TNT), . . . Plus Sign. Click to expand choices. Disposal operations from the manufacturing processes of the explosives 2,4,6-trinitrotoluene (TNT), 1,3,5-trinitro- 1,3,5-hexahydrotriazine (RDX), and octahydro-1,3,5,7-tetranito- 1,3,5,7-tetrazocine (HMX) have resulted in the contamination of soil and groundwater at many active and inactive munitions sites. One option to be investigated for site cleanup is natural attenuation of these contaminants. The potential success of this option depends upon the ability of low-carbon aquifer materials to adsorb and transform explosive contaminants. Therefore, an understanding of the processes that control the mobility and transformation of explosives in low-carbon aquifer soils is needed to improve evaluation of natural attenuation in aquifers. The objective of this study was to investigate the effects of environmental conditions such as redox potential, pH, and groundwater quality on sorption and transformation of explosives in low-carbon aquifer soils.
    Tagged With: Toxline, Secondary Literature and Sources of Other RDX Information, Fate and Transport / Exposure levels, Database Searches - 2013 (private), Database searches, Toxline

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  • 7.
    Technical Report
    Technical
    Report
    Adsorption and Transformation of RDX in Low-Carbon Aquifer Soils

    (2001)
    Minus Sign. Click to see only selected choices. Disposal operations from the manufacturing process of the explosives 2,4,6-trinitrotoluene (TNT), 1,3,5-trinitro- . . . Plus Sign. Click to expand choices. Disposal operations from the manufacturing process of the explosives 2,4,6-trinitrotoluene (TNT), 1,3,5-trinitro- 1,3,5-hexahydrotriazine (RDX), and octahydro-1,3,5,7-tetranitro- 1,3,5,7-tetrazocine (HMX) have resulted in the contamination of soil and groundwater at many active and inactive munitions sites. Natural attenuation of these compounds is one option for addressing site cleanup. The potential for this option to be successful in low-carbon aquifer soils is dependant upon the ability of these soils to adsorb and transform explosives. Therefore, an understanding of the processes that control the mobility and transformation of explosives in these types of soils is needed to evaluate the processes of natural attenuation in aquifers. The objective of these studies was to investigate environmental conditions such as redox potential, pH, and groundwater quality on sorption and transformation of explosives in low-carbon aquifer soils. Laboratory investigations addressing the effects of redox potential and pH on RDX transformation in an aquifer soil were conducted by testing at two different redox potentials and three pH levels. An 18:1 (water:soil) suspension spiked with 15 mg RDX was used. Results indicate that RDX added to a low-carbon soil was relatively stable under aerobic conditions. Highly reducing conditions promoted removal of RDX from solution, and increased transformation was seen. Studies addressing various degrees of cation substitution on adsorption of TNT in an aquifer soil and two clay minerals were conducted. Results of batch shake tests showed that groundwater cation composition strongly affected TNT sorption by aquifer soils. TNT sorption was most pronounced at 100-percent saturation with K(+), but results showed that increases in sorption could be attained at saturation levels below 40 percent.
    Tagged With: Toxline, Secondary Literature and Sources of Other RDX Information, Fate and Transport / Exposure levels, Database Searches - 2013 (private), Database searches, Toxline

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  • 8.
    The "refereed" or "peer review" status of a journal comes from the Ulrichsweb Global Serials Directory (http://ulrichsweb.serialssolutions.com/), as supplied by the publisher. The term refers to the system of critical evaluation of manuscripts/articles by professional colleagues or peers. The content of refereed publications is sanctioned, vetted, or otherwise approved by a peer-review or editorial board. The peer-review and evaluation system is utilized to protect, maintain, and raise the quality of scholarly material published in serials. Publications subject to the referee process are assumed, then, to contain higher quality content than those that are not.
    Peer
    Reviewed
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    Article
    Environmental immunoassays: Practical applications and recent developments

    Author: Aga, DS
    (1997) Analusis 25:M25-M29.
    Minus Sign. Click to see only selected choices. BIOSIS COPYRIGHT: BIOL ABS. The applications of immunoassays (IA) in environmental analysis have increased . . . Plus Sign. Click to expand choices. BIOSIS COPYRIGHT: BIOL ABS. The applications of immunoassays (IA) in environmental analysis have increased significantly in the past ten years. The IA technology, which is based on the high degree of specificity characteristic of antibody-antigen interactions, offers unique advantages over conventional analytical techniques.
    Tagged With: Database searches, Toxline, Database Searches - 2013 (private), Toxline, Database searches, Toxline, Excluded/Not on Topic, Not relevant, Not chemical specific

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  • 9.
    Technical Report
    Technical
    Report
    Health Assessment for Milan Army Ammunition Plant, Milan, Carroll and Gibson Counties, Tennessee, Region 4. CERCLIS No. TN0210020582

    Author: ATSDR
    (1993) Atlanta, GA.
    : Department H.E.W. Office of Toxic Substance and Disease.
    Minus Sign. Click to see only selected choices. Milan Army Ammunition Plant (MAAP) lies in both Carroll and Gibson Counties, Tennessee. Past operations . . . Plus Sign. Click to expand choices. Milan Army Ammunition Plant (MAAP) lies in both Carroll and Gibson Counties, Tennessee. Past operations have resulted in the contamination of environmental media with a variety of explosives-related compounds, including RDX, TNT, HMX, tetryl, and heavy metals. In the past, wastewaters from LAP Line activities were discharged to concrete-lined sumps or unlined ponds where the settling of explosives occurred. Potential pathways include consumption of potentially contaminated game, livestock, and crops grown on MAAP and exposure to wind-borne contaminants arising from open-burning of explosives.
    Tagged With: Toxline, Secondary Literature and Sources of Other RDX Information, Fate and Transport / Exposure levels, Database Searches - 2013 (private), Database searches, Toxline, Cited 2015 (private)

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  • 10.
    Technical Report
    Technical
    Report
    Health assessment for Nebraska Army Ordnance Plant (former), Mead, Saunders County, Nebraska, Region 7. CERCLIS No. NE6211890011

    Author: ATSDR
    (1992) (PB92177815). Atlanta, GA: Department H.E.W. Office of Toxic Substance and Disease.
    Minus Sign. Click to see only selected choices. The former Nebraska Ordance Plant (NOP), a National Priorities List (NPL) site, is located in Saunders . . . Plus Sign. Click to expand choices. The former Nebraska Ordance Plant (NOP), a National Priorities List (NPL) site, is located in Saunders County, Nebraska. The plant assembled bombs from 1942 through 1945 and 1950 through 1956. Past waste disposal practices at NOP resulted in soil contamination with trinitrotoluene (TNT), cyclonite (RDX), and polychlorinated biphenyls (PCBs) and groundwater contamination with trichloroethylene (TCE), TNT, and RDX. In addition, the unused portions of the former manufacturing buildings contain steam pipes covered with frayed asbestos. From the available information, the Agency for Toxic Substances and Disease Registry concludes that the former Nebraska Ordnance Plant NPL site is a public health hazard because a risk to human health may exist from possible exposure to hazardous substances at concentrations that may result in adverse human health effects. Exposure to elevated levels of TCE and RDX has occurred in some on-site and off-site residents of the NOP site who used contaminated groundwater for drinking and bathing. This groundwater contamination could migrate into additional drinking water supplies in the future. Moreover, bioaccumulation of RDX in crops irrigated with contaminated water is another pathway of concern. Individuals could also have skin contact and ingestion exposures to RDX, TNT, and PCBs in on-site soils. The asbestos located in the unused manufacturing buildings is an additional public health hazard. Although there are indications that human exposure to on- and off-site contaminants occurred in the past, this site is not being considered for follow-up health activities at this time because no current exposure is occurring at levels of public health concern. However, if data become available suggesting that human exposure to hazardous substances at levels of public health concern is currently occurring, the Agency for Toxic Substances and Disease Registry will reevaluate this site for any indicated follow-up. ATSDR will continue coordination with the State of Nebraska Department of Health, the U.S. Environmental Protection Agency (EPA), and the Army Corps of Engineers to ensure provision of alternate water to the affected families. ATSDR will also continue to support protective actions taken by the proper authorities to mitigate the asbestos hazard.
    Tagged With: Database Searches - 2013 (private), Toxline, Database searches, Toxline, Secondary Literature and Sources of Other RDX Information, Fate and Transport / Exposure levels, Cited 2015 (private), Toxline

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Database searches (1,247)
Pubmed (698)
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