Materials Map

Discover the materials research landscape. Find experts, partners, networks.

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The Materials Map is an open tool for improving networking and interdisciplinary exchange within materials research. It enables cross-database search for cooperation and network partners and discovering of the research landscape.

The dashboard provides detailed information about the selected scientist, e.g. publications. The dashboard can be filtered and shows the relationship to co-authors in different diagrams. In addition, a link is provided to find contact information.

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The Materials Map is still under development. In its current state, it is only based on one single data source and, thus, incomplete and contains duplicates. We are working on incorporating new open data sources like ORCID to improve the quality and the timeliness of our data. We will update Materials Map as soon as possible and kindly ask for your patience.

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in Cooperation with on an Cooperation-Score of 37%

Topics

Publications (1/1 displayed)

  • 2024Acetic Acid Enables Molecular Enumeration of <i>Mycobacterium tuberculosis</i> from Sputum and Eliminates the Need for a Biosafety Level 3 Laboratory2citations

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Mchugh, Timothy D.
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Morkowska, Anna
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Honeyborne, Isobella
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Morris-Jones, Stephen
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Marakalala, Mohlopheni J.
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Millard, James
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Sambou, Basil
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Owolabi, Olumuyiwa
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Sutherland, Jayne S.
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Zumla, Alimuddin
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2024

Co-Authors (by relevance)

  • Mchugh, Timothy D.
  • Morkowska, Anna
  • Honeyborne, Isobella
  • Morris-Jones, Stephen
  • Billington, Owen
  • Marakalala, Mohlopheni J.
  • Millard, James
  • Sambou, Basil
  • Owolabi, Olumuyiwa
  • Sutherland, Jayne S.
  • Zumla, Alimuddin
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article

Acetic Acid Enables Molecular Enumeration of <i>Mycobacterium tuberculosis</i> from Sputum and Eliminates the Need for a Biosafety Level 3 Laboratory

  • Mchugh, Timothy D.
  • Morkowska, Anna
  • Palekyte, Ana
  • Honeyborne, Isobella
  • Morris-Jones, Stephen
  • Billington, Owen
  • Marakalala, Mohlopheni J.
  • Millard, James
  • Sambou, Basil
  • Owolabi, Olumuyiwa
  • Sutherland, Jayne S.
  • Zumla, Alimuddin
Abstract

<jats:title>Abstract</jats:title><jats:sec><jats:title>Background</jats:title><jats:p>Improved monitoring of Mycobacterium tuberculosis response to treatment is urgently required. We previously developed the molecular bacterial load assay (MBLA), but it is challenging to integrate into the clinical diagnostic laboratory due to a labor-intensive protocol required at biosafety level 3 (BSL-3). A modified assay was needed.</jats:p></jats:sec><jats:sec><jats:title>Methods</jats:title><jats:p>The rapid enumeration and diagnostic for tuberculosis (READ-TB) assay was developed. Acetic acid was tested and compared to 4 M guanidine thiocyanate to be simultaneously bactericidal and preserve mycobacterial RNA. The extraction was based on silica column technology and incorporated low-cost reagents: 3 M sodium acetate and ethanol for the RNA extraction to replace phenol–chloroform. READ-TB was fully validated and compared directly to the MBLA using sputa collected from individuals with tuberculosis.</jats:p></jats:sec><jats:sec><jats:title>Results</jats:title><jats:p>Acetic acid was bactericidal to M. tuberculosis with no significant loss in 16S rRNA or an unprotected mRNA fragment when sputum was stored in acetic acid at 25°C for 2 weeks or −20°C for 1 year. This novel use of acetic acid allows processing of sputum for READ-TB at biosafety level 2 (BSL-2) on sample receipt. READ-TB is semiautomated and rapid. READ-TB correlated with the MBLA when 85 human sputum samples were directly compared (R2 = 0.74).</jats:p></jats:sec><jats:sec><jats:title>Conclusions</jats:title><jats:p>READ-TB is an improved version of the MBLA and is available to be adopted by clinical microbiology laboratories as a tool for tuberculosis treatment monitoring. READ-TB will have a particular impact in low- and middle-income countries (LMICs) for laboratories with no BSL-3 laboratory and for clinical trials testing new combinations of anti-tuberculosis drugs.</jats:p></jats:sec>

Topics
  • impedance spectroscopy
  • extraction
  • Sodium
  • size-exclusion chromatography