Search Results - "Kimani, Martin M"

Evaluation of Suspected Counterfeit Pharmaceutical Tablets Declared to Contain Controlled Substances Using Handheld Raman Spectrometers by Lanzarotta, Adam, Kimani, Martin M., Thatcher, Michael D., Lynch, John, Fulcher, Moseley, Witkowski, Mark R., Batson, JaCinta S.

“…This study describes the performance of handheld Raman devices for determining whether suspect pharmaceutical tablets declared to contain controlled substances…”
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Metallic Single-Walled Carbon Nanotubes for Conductive Nanocomposites by Wang, Wei, Fernando, K. A. Shiral, Lin, Yi, Meziani, Mohammed J, Veca, L. Monica, Cao, Li, Zhang, Puyu, Kimani, Martin M, Sun, Ya-Ping

“…This article reports an unambiguous demonstration that bulk-separated metallic single-walled carbon nanotubes offer superior performance (consistently and…”
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Trace level detection of select opioids (fentanyl, hydrocodone, oxycodone, and tramadol) in suspect pharmaceutical tablets using surface‐enhanced Raman scattering (SERS) with handheld devices by Kimani, Martin M., Lanzarotta, Adam, Batson, JaCinta S.

“…The opioid crisis in the USA has resulted in over 702,000 overdose fatalities between 1999 and 2017 and can be attributed to over‐prescription of opioids and…”
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Rapid determination of eight benzodiazepines in suspected counterfeit pharmaceuticals using surface‐enhanced Raman scattering with handheld Raman spectrometers by Kimani, Martin M., Lanzarotta, Adam, Batson, JaCinta S.

“…The excessive prescription of benzodiazepines is putting more people at risk of dependence on these drugs and is exacerbating the fatal overdose toll of…”
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Screening suspect pharmaceuticals for illicit designer benzodiazepines using raman, SERS, and FT-IR prior to comprehensive analysis using LC-MS by Kimani, Martin M., Smith, Skyler W., Lanzarotta, Adam, Brueggemeyer, Jana L., Batson, JaCinta S.

“…The emergence of illicit designer benzodiazepines with high dependency and no approved clinical use are of great US public health concern. Due to the…”
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Dinuclear copper(I) complexes with N-heterocyclic thione and selone ligands: synthesis, characterization, and electrochemical studies by Kimani, Martin M, Watts, David, Graham, Leigh A, Rabinovich, Daniel, Yap, Glenn P A, Brumaghim, Julia L

“…The synthesis, characterization, and structures of a series of homoleptic and heteroleptic copper(I) complexes supported by N-heterocyclic chalcogenone ligands…”
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Rapid detection of active pharmaceutical ingredients in drug products collected at an international mail facility by a satellite laboratory using a “toolkit” consisting of a handheld Raman spectrometer, portable mass spectrometer and portable FT-IR spectrometer by Lanzarotta, Adam, Kern, Sara, Batson, JaCinta, Boyd, Brian, Kimani, Martin M., Kuo, Weiwei, LaGarde, Donna, Loh, Mark, Adeoshun, Laurenee L., Lorenz, Lisa, Melendez, Rebeca, Morales-Garcia, Flavia, Thatcher, Michael, Wetherby Jr, Anthony E., Witkowski, Mark R.

“…A satellite laboratory “toolkit” consisting of a handheld Raman spectrometer, portable direct analysis in real-time mass spectrometer (DART-MS) and portable…”
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Hydrothermal Crystal Growth on Non-native Substrates: The Case of UO2 by Rickert, Karl, Velez, Michael A, Prusnick, Timothy A, Turner, David B, Kimani, Martin M, Bowen, Thomas, Mann, J. Matthew

“…Large, high-quality single-crystal seeds are required for the orientation-controlled growth of iteratively larger high-quality bulk crystals, but seeds…”
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Probing the Antioxidant Action of Selenium and Sulfur Using Cu(I)-Chalcogenone Tris(pyrazolyl)methane and -borate Complexes by Kimani, Martin M, Brumaghim, Julia L, VanDerveer, Don

“…Hydroxyl radical generated from the reaction of Cu+ with hydrogen peroxide results in oxidative DNA damage, and this damage is implicated in aging, cancer, and…”
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Interband Transitions and Critical Points of Single‐Crystal Thoria Compared with Urania by Dugan, Christina, Wang, Lu, Zhang, Kai, Mann, James Matthew, Kimani, Martin M., Mei, Wai-Ning, Dowben, Peter A., Petrosky, James

“…The interband transitions of UO2 are validated independently through cathode luminescence. A picture emerges consistent with density functional theory. While…”
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Evaluation of “Toolkit” consisting of handheld and portable analytical devices for detecting active pharmaceutical ingredients in drug products collected during a simultaneous nation-wide mail blitz by Lanzarotta, Adam, Kern, Sara, Batson, JaCinta, Falconer, Travis M., Fulcher, Moseley, Gaston, Kirk W., Kimani, Martin M., Lorenz, Lisa, Morales-Garcia, Flavia, Ranieri, Nicola, Skelton, David, Thatcher, Michael D., Toomey, Valerie M., Voelker, Sarah, Witkowski, Mark R.

“…•Drug products were collected during a nationwide mail blitz.•Products were rapidly examined for APIs using a toolkit consisting of three portable devices.•The…”
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Investigating the copper coordination, electrochemistry, and Cu(II) reduction kinetics of biologically relevant selone and thione compounds by Kimani, Martin M, Wang, Hsiao C, Brumaghim, Julia L

“…Selenium- and sulfur-containing compounds can act as antioxidants by binding copper. To determine how this copper coordination results in the observed…”
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Synthesis, characterization, and DFT studies of thione and selone Cu(I) complexes with variable coordination geometries by Kimani, Martin M, Bayse, Craig A, Brumaghim, Julia L

“…Coordination of Cu(I) halides with N,N'-dimethylimidazole selone (dmise) and thione (dmit) ligands was examined by treating CuX (X = Cl, Br, I) with one or two…”
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Hydrothermal Synthesis and Spectroscopic Properties of a New Glaserite Material, K3RE(VO4)2 (RE = Sc, Y, Dy, Ho, Er, Yb, Lu, or Tm) with Potential Lasing and Optical Properties by Kimani, Martin M, Thompson, Lindsey, Snider, Whitney, McMillen, Colin D, Kolis, Joseph W

“…A new series of materials of the glaserite family with the general formula K3RE(VO4)2 (RE = Sc, Y, Dy, Ho, Er, Tm, Yb, and Lu) have been hydrothermally…”
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Oxidation of Biologically Relevant Chalcogenones and Their Cu(I) Complexes: Insight into Selenium and Sulfur Antioxidant Activity by Kimani, Martin M, Bayse, Craig A, Stadelman, Bradley S, Brumaghim, Julia L

“…Hydroxyl radical damage to DNA causes disease, and sulfur and selenium antioxidant coordination to hydroxyl-radical-generating Cu+ is one mechanism for their…”
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Rapid screening of 2‐benzylbenzimidazole nitazene analogs in suspect counterfeit tablets using Raman, SERS, DART‐TD‐MS, and FT‐IR by Kimani, Martin M., Kern, Sara, Lanzarotta, Adam, Thatcher, Michael, Lorenz, Lisa M., Smith, Skyler W., Collins, Melissa, Howe, Gregory W., Wetherby, Anthony E.

“…Developing methods to rapidly screen for novel synthetic 2‐benzylbenzimidazole opioids, also known as nitazenes, has become increasingly important due to their…”
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Europium valence control in the hydrothermal synthesis of apatites and borosilicates by Heyward, Carla C., Kimani, Martin M., Moore, Cheryl A., McMillen, Colin D., Kolis, Joseph W.

“…The solid-state chemistry of novel metal silicate and borosilicate crystals containing Eu2+ and Eu3+ in high temperature hydrothermal fluids was investigated…”
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Hydrothermal Synthesis and Comparative Coordination Chemistry of New Rare-Earth V4+ Compounds by Kimani, Martin M, McMillen, Colin D, Kolis, Joseph W

“…Several new hydrated rare earth vanadates and rare earth oxy-vanadates have been synthesized using hydrothermal techniques and characterized using single…”
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Synthesis and luminescence studies of a novel white Dy:K3Y(VO4)2 and yellow emitting phosphor Dy,Bi:K3Y(VO4)2 with potential application in white light emitting diodes by Kimani, Martin M., Kolis, Joseph W.

“…Potassium yttrium double vanadates (K3Y(VO4)2) doped with Bi3+ or Dy3+ and codoped with Bi3+ and Dy3+ have been synthesized by solid state reactions at 1000°C…”
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Heteroepitaxial growth of OPGaP on OPGaAs for frequency conversion in the IR and THz by Tassev, Vladimir L., Vangala, Shivashankar R., Peterson, Rita D., Kimani, Martin M., Snure, Michael, Stites, Ronald W., Guha, Shekhar, Slagle, Jonathan E., Ensley, Trenton R., Syed, Akbar A., Markov, Ivan V.

“…For the first time thick orientation-patterned GaP (OPGaP) was repeatedly grown heteroepitaxially on OPGaAs templates as a quasi-phase matched medium for…”
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