Results 71 to 80 of about 103,901 (253)

Beyond the Fixed Charge: A New On‐Tissue Derivatisation Strategy Employing Photoionisable Chromophores for Mass Spectrometry Imaging of Amino‐Containing Metabolites

Angewandte Chemie, EarlyView.
We introduce a novel chemical derivatisation strategy for the UV‐activated detection of elusive metabolites. Incorporation of a tocopherol‐active chromophore allows for the detection of tagged analytes as photoionised radical cations, selectively induced by a 266 nm laser.
Sofia R. McGowan, Andrew J. Tague, Ashna A. Kumar, Marie Ranson, Christopher J. T. Hyland, Shane R. Ellis   +5 more
wiley   +2 more sources

Interspecies Biofilm Dynamics Among Staphylococci: Inflammatory Contributions to Chronic Rhinosinusitis

International Forum of Allergy &Rhinology, EarlyView.
ABSTRACT Introduction Staphylococcus species are frequently isolated from the sinonasal niche of chronic rhinosinusitis (CRS) patients. While Staphylococcus aureus is often associated with recalcitrant CRS, Staphylococcus epidermidis and Staphylococcus lugdunensis are largely deemed commensal.
Sintayehu Ambachew, Mahnaz Ramezanpour, Clare M. Cooksley, Sholeh Feizi, Muhammed Awad, Kevin Aaron Fenix, Peter‐John Wormald, Alkis J. Psaltis, Sarah Vreugde   +8 more
wiley   +1 more source

Chemoenzymatic Synthesis of Well‐Defined α(2,8)‐ and α(2,9)‐Linked Oligosialosides

Angewandte Chemie, EarlyView.
Well‐defined α(2,8)‐ and α(2,9)‐linked oligosialic acids of different lengths can be prepared by employing recombinant bacterial polysialyltransferases in combination with chemically modified CMP‐Neu5Ac derivatives. After transfer, a sialoside is formed bearing an artificial entity, which blocks further glycosylation.
Jelle A. Fok, Keshav Kishor, Mehman I. Bunyatov, Gerlof P. Bosman, Geert‐Jan Boons   +4 more
wiley   +2 more sources

Development of a loop‐mediated isothermal amplification‐lateral flow dipstick (LAMP‐LFD) assay and on‐site rapid detection evaluation for Rodentibacter heylii and Rodentibacter pneumotropicus

Animal Models and Experimental Medicine, EarlyView.
This study established a closed‐tube LAMP‐LFD assay for detecting Rodentibacter heylii and Rodentibacter pneumotropicus. The method exhibited high sensitivity (detection limits of 10−5 ng/μL for R. heylii and 10−4 ng/μL for R. pneumotropicus), high specificity, reliable performance with clinical samples, and effective validation in experimental ...
Huiqiong Yan, Sisi Chen, Yuhan Gan, Jing Xing, Yufang Feng, Xin Wen, Jie Fang, Jiangtao Du, Shasang Zhou, Honggang Guo, Xiaoyin Jin, Zhiyuan Wang, Junhao Tao, Lingqun Lu, Qingming Kong, Huazhong Ying, Wei Han, Fangwei Dai   +17 more
wiley   +1 more source

Discovery of a Reversible Sub‐Picomolar Thrombin Inhibitor Using DCC

Angewandte Chemie, EarlyView.
An ultrapotent yet fully reversible trivalent thrombin inhibitor discovered through screening a large dynamic combinatorial library (DCL) of 125 000 members of self‐assembled fragments. The innovative approach leverages size‐exclusion‐based affinity selection, coupled with MALDI‐TOF mass spectrometry readout, enabling the full workflow to be completed ...
Millicent Dockerill, Richard J. Payne, Nicolas Winssinger   +2 more
wiley   +2 more sources

Comparison of Vacuum MALDI and AP-MALDI Platforms for the Mass Spectrometry Imaging of Metabolites Involved in Salt Stress in Medicago truncatula

Frontiers in Plant Science, 2018
Matrix-assisted laser desorption/ionization-mass spectrometry imaging (MALDI-MSI) is routinely used to determine the spatial distributions of various biomolecules in tissues.
Caitlin Keller, Junko Maeda, Dhileepkumar Jayaraman, Sanhita Chakraborty, Michael R. Sussman, Jeanne M. Harris, Jean-Michel Ané, Jean-Michel Ané, Lingjun Li, Lingjun Li   +9 more
doaj   +1 more source

Das fehlende Glied der Ferrocenophan‐Chemie: Isolierung eines Carba[1]Ferrocenophans

Angewandte Chemie, EarlyView.
Die Synthese und Isolierung eines kristallinen Carba[1]Ferrocenophans wird berichtet. Ein einzelnes Kohlenstoffatom ist das bislang kleinste Verbrückungsmotiv, das in ein Ferrocenophan eingebaut werden konnte. Dies resultiert in einem Diederwinkel der Ebenen der Cyclopentadienylringe von 36.7°, was entsprechend die größte Abwinkelung relativ zu ...
Aylin Feuerstein, Sergi Danés, Kathrin Kolling, Bernd Morgenstern, Markus Gallei, André Schäfer   +5 more
wiley   +1 more source

3‐Deoxy‐3‐Fluoro Mannuronic Acid Alginates: Stereoselective Automated Synthesis and Conformational Behaviour

Angewandte Chemie, EarlyView.
The impact of C‐3 fluorination on the synthesis and conformation of alginate oligosaccharides is investigated. A C‐3‐fluoro mannuronic acid building block is generated and shown to react with high β‐selectivity. Automated glycan assembly enables access to uniquely fluorinated mannuronic acid alginates where deoxyfluorination is shown not to perturb the
Sean T. Evans, Nishu Yadav, Wouter A. Remmerswaal, Daan Hoogers, Koen N. A. van de Vrande, Sarah Hosking, Ana Poveda, Jeroen D. C. Codée, Jesús Jiménez‐Barbero, Martina Delbianco, Gavin J. Miller   +10 more
wiley   +2 more sources

Assessment of matrix-assisted laser desorption ionization-time of flight mass spectrometry for identification and biotyping of the pathogenic oomycete Pythium insidiosum

International Journal of Infectious Diseases, 2018
Objective: Pythiosis is a life-threatening infectious disease caused by the oomycete Pythium insidiosum. The disease has been increasingly reported worldwide. Most patients with pythiosis undergo surgical removal of an infected organ.
Theerapong Krajaejun, Tassanee Lohnoo, Paisan Jittorntam, Atthapol Srimongkol, Yothin Kumsang, Wanta Yingyong, Thidarat Rujirawat, Onrapak Reamtong, Suthee Mangmee   +8 more
doaj   +1 more source

Environmental Identification of Novel Enzymes for Polyurethane and Polyamide Degradation

Angewandte Chemie, EarlyView.
Heteroatom‐containing plastics such as polyurethanes and nylons are produced at scale yet remain largely unrecycled. Biocatalysts offer a promising route to depolymerization under mild conditions. Here, we present a screening platform for the discovery of novel polyurethane‐ and nylon‐degrading enzymes from environmental samples and demonstrate ...
Malthe Kjær Bendtsen, Andreas Møllebjerg, Samuel Peña‐Díaz, Rosie Graham, Nicolai Claus Petersen, Bjørk Nolsøe Isaksen, Mathias Carstensen, Martin B. Johansen, Andreas Sommerfeldt, Allan R. Petersen, Iddi Khamisi Chuma, Cecilie Ryberg, Thomas Rea Wittenborn, Virginia Gichuru, Huabing Wang, Carsten Scavenius, Alexander Sandahl, Daniel E. Otzen   +17 more
wiley   +2 more sources