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Examination of Intermolecular Forces Influencing Headspace Analysis of Biological Samples [PDF]

Metabolites
Headspace analysis is an effective method for assessing the concentrations of volatile and semi-volatile metabolites in biological samples. In particular, solid-phase microextraction (SPME) is an efficient tool for headspace analyses. Metabolites present
Young Eun Lee, Bruce A. Kimball
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Development of Mass Spectrometry-Based SCFA Analysis Methods in Diverse Samples for Microbiome Research [PDF]

Life
With the growing interest in the microbiome, short-chain fatty acids (SCFAs) have emerged as key metabolites due to their critical roles in host physiology, including immune regulation, energy homeostasis, and inflammatory control.
Chaeeun Park, Md Abdur Rahim, Indrajeet Barman, Hanieh Tajdozian, Youjin Yoon, Sukyung Kim, Mijung Kim, Hoonhee Seo, Ho-Yeon Song   +8 more
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Mental health outcomes and use of online mental health tools following a public health deployment of the mindfulness meditation app headspace [PDF]

Frontiers in Digital Health
BackgroundDigital mental health interventions (DMHIs), such as mindfulness-based apps, have become popular mental health resources and can be associated with benefits such as reducing stress, anxiety, and depression.
Judith Borghouts, Elizabeth V. Eikey, Elizabeth V. Eikey, Cinthia De Leon, Jeongmi Kim, Stephen M. Schueller, Stephen M. Schueller, Margaret Schneider, Nicole A. Stadnick, Nicole A. Stadnick, Nicole A. Stadnick, Kai Zheng, Dara H. Sorkin   +12 more
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Pharmaceutical Residual Solvent Analysis: A Comparison of GC-FID and SIFT-MS Performance

AppliedChem, 2023
Residual solvents in pharmaceutical excipients, active pharmaceutical ingredients (APIs), and finished products are usually analyzed using gas chromatography (GC)-based techniques according to a pharmacopeial monograph, such as the United States ...
Mark J. Perkins, Colin Hastie, Sophia E. Whitlock, Vaughan S. Langford   +3 more
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Antibacterial Activity of Thymus vulgaris L. Essential Oil Vapours and Their GC/MS Analysis Using Solid-Phase Microextraction and Syringe Headspace Sampling Techniques

Molecules, 2021
While the inhalation of Thymus vulgaris L. essential oil (EO) is commonly approved for the treatment of mild respiratory infections, there is still a lack of data regarding the antimicrobial activity and chemical composition of its vapours.
Julien Antih, Marketa Houdkova, Klara Urbanova, Ladislav Kokoska   +3 more
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Headspace Volatile Organic Compound Profiling of Pleural Mesothelioma and Lung Cancer Cell Lines as Translational Bridge for Breath Research

Frontiers in Oncology, 2022
IntroductionMalignant pleural mesothelioma (MPM) is a lethal cancer for which early-stage diagnosis remains a major challenge. Volatile organic compounds (VOCs) in breath proved to be potential biomarkers for MPM diagnosis, but translational studies are ...
Eline Janssens, Eline Janssens, Zoë Mol, Lore Vandermeersch, Sabrina Lagniau, Sabrina Lagniau, Sabrina Lagniau, Karim Y. Vermaelen, Karim Y. Vermaelen, Karim Y. Vermaelen, Jan P. van Meerbeeck, Jan P. van Meerbeeck, Jan P. van Meerbeeck, Jan P. van Meerbeeck, Christophe Walgraeve, Elly Marcq, Kevin Lamote, Kevin Lamote, Kevin Lamote   +18 more
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β-caryophyllene as an attractant for the cacao mirid bug, Helopeltis bakeri Poppius (Hemiptera: Miridae), and chemodiversity of its host plant volatiles

Frontiers in Agronomy, 2023
The cacao mirid bug, Helopeltis bakeri, is a major insect pest of cacao in the Philippines. It feeds on pods causing puncture wounds that become necrotic lesions and may lead eventually to pod abortion.
Mary Angelique A. Tavera, Mary Angelique A. Tavera, Maria Criselda V. Dela Cruz, Maria Criselda V. Dela Cruz, Kris Lord T. Santos, Kris Lord T. Santos, Divina M. Amalin, Divina M. Amalin, Jose Isagani B. Janairo, Jose Isagani B. Janairo   +9 more
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Exploratory Study Using Urinary Volatile Organic Compounds for the Detection of Hepatocellular Carcinoma

Molecules, 2021
Hepatocellular carcinoma (HCC) biomarkers are lacking in clinical practice. We therefore explored the pattern and composition of urinary volatile organic compounds (VOCs) in HCC patients.
Ayman S. Bannaga, Heena Tyagi, Emma Daulton, James A. Covington, Ramesh P. Arasaradnam   +4 more
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Sensitivity Increase in Headspace Analysis of Hydrocarbons in Water by Using Online Selective Elimination of Gas Extractant

Separations, 2022
In this study, a novel approach in headspace gas chromatographic analysis using the selective absorption of the gas extractant during concentration of the analytes was developed.
Oleg V. Rodinkov, Alexey Y. Pisarev, Leonid N. Moskvin, Aleksandra S. Bugaichenko, Pavel N. Nesterenko   +4 more
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Characterization of Polyphenols and Volatile Compounds from Understudied Algerian Pallenis spinosa by HS-SPME-GC-MS, NMR and HPLC-MSⁿ Approaches

Applied Sciences, 2023
Pallenis spinosa (L.) Cass. is a widespread plant in the Mediterranean region. Traditionally, it is used as a medicinal species to treat several ailments, from inflammation to skin injuries.
Nabila Adoui, Nabila Souilah, Hamdi Bendif, Stefania Sut, Stefano Dall’Acqua, Guido Flamini, Filippo Maggi, Gregorio Peron   +7 more
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