Search Results - "Mwangi, Joseph N."
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Toxicity of carbon nanotubes to freshwater aquatic invertebrates
Published in Environmental toxicology and chemistry (01-08-2012)“…Carbon nanotubes (CNTs) are hydrophobic in nature and thus tend to accumulate in sediments if released into aquatic environments. As part of our overall effort…”
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2
High Percentage of Isomeric Human MicroRNA and Their Analytical Challenges
Published in Non-coding RNA (02-12-2016)“…MicroRNA (miR) are short non-coding RNAs known to post-transcriptionally regulate gene expression, and have been reported as biomarkers for various diseases…”
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Application of infrared matrix-assisted laser desorption electrospray ionization mass spectrometry for morphine imaging in brain tissue
Published in Analytical and bioanalytical chemistry (01-09-2023)“…Here, we present a method developed for the analysis of spatial distributions of morphine in mouse brain tissue using infrared matrix-assisted laser desorption…”
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4
Mass Spectroscopy Imaging of Hair Strands Captures Short-Term and Long-Term Changes in Emtricitabine Adherence
Published in Antimicrobial agents and chemotherapy (19-04-2022)“…Most measures of adherence to antiretroviral therapy require a blood sample, and none capture longitudinal daily adherence. A new noninvasive method for…”
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Quantitative Imaging Analysis of the Spatial Relationship between Antiretrovirals, Reverse Transcriptase Simian-Human Immunodeficiency Virus RNA, and Collagen in the Mesenteric Lymph Nodes of Nonhuman Primates
Published in Antimicrobial agents and chemotherapy (18-05-2021)“…Human immunodeficiency virus (HIV) persistence in tissue reservoirs is a major barrier to HIV cure. While antiretrovirals (ARVs) suppress viral replication,…”
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Influence of hair treatments on detection of antiretrovirals by mass spectrometry imaging
Published in Analyst (London) (07-07-2020)“…Analysis of drugs in hair by mass spectrometry imaging (MSI) has great potential as an objective, long-term measure of medication adherence. However, the…”
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Nanospray desorption electrospray ionization mass spectrometry of untreated and treated probiotic Lactobacillus reuteri cells
Published in Analytical and bioanalytical chemistry (01-07-2018)“…Mass spectrometry has proven to be a useful technique for rapid identification of bacterial cells. Among various ionization techniques in mass spectrometry,…”
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MALDI matrix cluster ions as internal references for ion mobility measurements
Published in International journal for ion mobility spectrometry (01-10-2020)“…In the absence of high vacuum, the mobility of ions in an electric field is dependent on the charge, mass, shape and size of the ions. To achieve accurate…”
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Evaluating the variation of ion energy under different parameter settings in traveling wave ion mobility mass spectrometry
Published in International journal for ion mobility spectrometry (01-09-2018)“…Ion mobility mass spectrometry (IM-MS) can be used to differentiate and identify isobaric ions. To improve IM-MS resolution, the second generation of traveling…”
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Toxicity of silicon carbide nanowires to sediment-dwelling invertebrates in water or sediment exposures
Published in Environmental toxicology and chemistry (01-04-2011)“…Silicon carbide nanowires (SiCNW) are insoluble in water. When released into an aquatic environment, SiCNW would likely accumulate in sediment. The objective…”
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