Analytical Chemist
Johns Hopkins University
The McMeniman group at Johns Hopkins is recruiting an analytical chemist to study human scent chemistry scent-based malaria diagnostics.
See the full job description on jobRxiv: https://jobrxiv.org/job/johns-hopkins-university-27778-analytical-chemist/
#Analyticalchemistry #AnalyticalMethodDevelopment #GCMS #LCMS #massspectrometry #ScienceJobs #hiring #resea...
https://jobrxiv.org/job/johns-hopkins-university-27778-analytical-chemist/?fsp_sid=10281
Analytical Chemist
Johns Hopkins University
The McMeniman group at Johns Hopkins is recruiting an analytical chemist to study human scent chemistry scent-based malaria diagnostics.
See the full job description on jobRxiv: https://jobrxiv.org/job/johns-hopkins-university-27778-analytical-chemist/
#Analyticalchemistry #AnalyticalMethodDevelopment #GCMS #LCMS #massspectrometry #ScienceJobs #hiring #resear...
https://jobrxiv.org/job/johns-hopkins-university-27778-analytical-chemist/?fsp_sid=9524
Just spent four hours trying to make a leak-free seal between a tank of UHP He and a regulator.
Turns out the seat in the tank was corroded and no matter how tight I attached the regulator, nothing was going to work.
(Luckily my wife suggested I try another regulator, and w/in ten mins of my conversation with her I realized I was on a fool's errand.)
I need a beer. 🍻#GCMS
🚨 #publication alert!
Just a few days into the new year and we already have a published #paper first-authored by our PhD candidate Sarah. 🎉
It is the first study on the volatile emissions of Synchytrium endobioticum (potato wart disease) on potatoes. We identified seven possible marker compounds using TD-GC-MS and #chemometrics.
S. endobioticum is a highly potent fungus classified as a quarantine pathogen in the EU, since it can affect #potato fields for more than 40 years.
Our research offers new insights into the volatilome and may enable future screening methods for potato diseases.
Read more ➡️ https://link.springer.com/article/10.1007/s41348-025-01216-9
#voc #planthealth #gcms #analyticalchemistry #potatowartdisease
Volatile organic compounds (VOCs) can serve as sensitive indicators of plant health and pathogen infection. In this study, gas chromatography–mass spectrometry combined with multivariate chemometric analysis was applied to identify VOC patterns specific to potato wart disease caused by the pathogen Synchytrium endobioticum. Healthy and artificially infected potato tubers were analyzed under controlled conditions, and the resulting chromatographic data were processed using a Python-based workflow integrating data merging, preprocessing, principal component analysis, and linear discriminant analysis. The chemometric models successfully distinguished infected from healthy tubers. Seven compounds, 1-methoxy-3-methylbutane, 3-methyl-1-butanol, 2-methyl-1-butanol, 2,3-butanediol, prenyl ethyl ether, styrene, and solavetivone, were identified as indicative for infection. In addition, a mass-specific evaluation demonstrated that discrimination is possible using selected ion fragments alone, providing a basis for simplified on-site applications. This study presents the first characterization of a volatile fingerprint for S. endobioticum infection and establishes a robust, time-efficient workflow for non-invasive detection of quarantine pathogens in potato crops.
Postdoctoral Analytical Chemist
Johns Hopkins University
Come join us at Johns Hopkins Malaria Research Institute as an #Analytical Chemistry Postdoc
See the full job description on jobRxiv: https://jobrxiv.org/job/johns-hopkins-university-27778-postdoctoral-analytical-chemist/
#AnalyticalMethodDevelopment #analyticalmethods #GCMS #LCMS #metabolomics #ScienceJobs #hiring #research
https://jobrxiv.org/job/johns-hopkins-university-27778-postdoctoral-analytical-chemist/?fsp_sid=4120
Postdoctoral Analytical Chemist
Johns Hopkins University
Come join us at Johns Hopkins Malaria Research Institute as an #Analytical Chemistry Postdoc
See the full job description on jobRxiv: https://jobrxiv.org/job/johns-hopkins-university-27778-postdoctoral-analytical-chemist/
#AnalyticalMethodDevelopment #analyticalmethods #GCMS #LCMS #metabolomics #ScienceJobs #hiring #research
https://jobrxiv.org/job/johns-hopkins-university-27778-postdoctoral-analytical-chemist/?fsp_sid=2496
Postdoctoral Analytical Chemist
Johns Hopkins University
Come join us at Johns Hopkins Malaria Research Institute as an #Analytical Chemistry Postdoc
See the full job description on jobRxiv: https://jobrxiv.org/job/johns-hopkins-university-27778-postdoctoral-analytical-chemist/
#AnalyticalMethodDevelopment #analyticalmethods #GCMS #LCMS #metabolomics #ScienceJobs #hiring #research
https://jobrxiv.org/job/johns-hopkins-university-27778-postdoctoral-analytical-chemist/?fsp_sid=1523
Postdoctoral Analytical Chemist
Johns Hopkins University
Come join us at Johns Hopkins Malaria Research Institute as an #Analytical Chemistry Postdoc
See the full job description on jobRxiv: https://jobrxiv.org/job/johns-hopkins-university-27778-postdoctoral-analytical-chemist/
#AnalyticalMethodDevelopment #analyticalmethods #GCMS #LCMS #metabolomics #ScienceJobs #hiring #research
https://jobrxiv.org/job/johns-hopkins-university-27778-postdoctoral-analytical-chemist/?fsp_sid=368
🌱 International Day of Plant Health🌱
Today, we highlight an often-overlooked topic: plant health – vital for food security, biodiversity, and sustainable agriculture.
In our current research at Hochschule Bonn-Rhein-Sieg and Julius Kühn-Institute, we’re tackling a key question:
How can we detect plant diseases and pests before visible symptoms appear?
🔬 The answer: With the nose of chemistry!
We analyze volatile organic compounds (VOCs) that plants emit when under stress or attacked by
🦠 bacteria,
🍄 fungi, and
🪲 insect pests.
Using advanced GC-MS technology (gas chromatography-mass spectrometry), we aim to identify these unique molecular “scent signatures” and use them as an early-warning system to detect harmful organisms before they cause damage.
🧪 Our goal: to “sniff out” plant diseases and pests.
#PlantHealth #InternationalPlantHealthDay #VOCs #GCMS #EarlyDetection #Pathogens #InvasiveSpecies #AnalyticalChemistry #ScienceForSustainability #PlantPathogens #PlantProtection #VOCAnalysis
jobRxiv
Andy Napper
Markus Witzler
CCR Feline Research Center