Results 61 to 70 of about 167,858 (299)

Identification of Lactobacillus from the saliva of adult patients with caries using matrix-assisted laser desorption/ionization time-of-flight mass spectrometry. [PDF]

PLoS ONE, 2014
Matrix-assisted laser desorption/ionization (MALDI) time-of-flight (TOF) mass spectrometry (MS) has been presented as a superior method for the detection of microorganisms in body fluid samples (e.g., blood, saliva, pus, etc.) However, the performance of
Yifei Zhang, Yingyi Liu, Qingwei Ma, Yeqing Song, Qian Zhang, Xiaoyan Wang, Feng Chen   +6 more
doaj   +1 more source

A Molecular Engineering Strategy to Fine‐Tune Phototoxicity of AIE Probes for Super‐Resolution Imaging of Mitochondrial Cristae Dynamics

Advanced Science, EarlyView.
Regulation of molecular packing, phototoxicity, and ROS output of AIE photosensitizers is achieved through carboxylation and alkyl‐chain‐length tuning. The probe designed via this strategy enables super‐resolution visualization of inner‐mitochondrial‐membrane cristae dynamics under controlled oxidative stress, and fluorescence‐lifetime imaging of ...
Kongqi Chen, Mengjie Wang, Chuen Kam, Zhiming Wang, Qinrong Zhang, Sijie Chen   +5 more
wiley   +1 more source

MALDI imaging mass spectrometry: statistical data analysis and current computational challenges

BMC Bioinformatics, 2012
Matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) imaging mass spectrometry, also called MALDI-imaging, is a label-free bioanalytical technique used for spatially-resolved chemical analysis of a sample.
Alexandrov Theodore
doaj   +1 more source

Cluster-Assembled Nanoporous Super-Hydrophilic Smart Surfaces for On-Target Capturing and Processing of Biological Samples for Multi-Dimensional MALDI-MS

Molecules, 2022
Matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS) on cluster-assembled super-hydrophilic nanoporous titania films deposited on hydrophobic conductive-polymer substrates feature a unique combination of surface properties that ...
Emanuele Barborini, Giacomo Bertolini, Monica Epifanio, Alexander Yavorskyy, Simone Vinati, Marc Baumann   +5 more
doaj   +1 more source

Polymer‐Grafted Cu(II) Metal–Organic Polyhedra as Scalable, Melt‐Processable Porous Materials

Advanced Science, EarlyView.
The use of a direct synthetic route to obtain polymer‐grafted Cu(II)‐based metal–organic polyhedra gives rise to a low‐cost and scalable cage. This material combines low‐temperature melting, achieving phase changes while preserving cage integrity, and high CO2 uptake exceeding 0.6 mmol g−1.
Alba Cortés‐Martínez, Francisco Sánchez‐Férez, José A. Suárez del Pino, Sergio Royuela, Félix Zamora, Daniel Maspoch, Arnau Carné‐Sánchez   +6 more
wiley   +1 more source

Identification of Mycobacterium abscessus using the peaks of ribosomal protein L29, L30 and hemophore-related protein by MALDI-MS proteotyping

Scientific Reports
Mycobacteroides (Mycobacterium) abscessus, which causes a variety of infectious diseases in humans, is becoming detected more frequently in clinical specimens as cases are spreading worldwide. Taxonomically, M.
Satomi Takei, Kanae Teramoto, Yuji Sekiguchi, Hiroaki Ihara, Mari Tohya, Shinichi Iwamoto, Koichi Tanaka, Abdullah Khasawneh, Yuki Horiuchi, Shigeki Misawa, Toshio Naito, Teruo Kirikae, Tatsuya Tada, Yoko Tabe   +13 more
doaj   +1 more source

Isolation and identification of Wickerhamiella tropicalis from blood culture by MALDI-MS

Frontiers in Cellular and Infection Microbiology
Wickerhamiella is a genus of budding yeast that is mainly isolated from environmental samples, and 40 species have been detected. The yeast isolated from human clinical samples usually only contain three species: W. infanticola, W.
Satomi Takei, Satomi Takei, Kanae Teramoto, Kanae Teramoto, Junya Fujimura, Megumi Fujiwara, Mai Suzuki, Yukiko Fukui, Yuji Sekiguchi, Takaaki Kawakami, Masayoshi Chonan, Mitsuru Wakita, Yuki Horiuchi, Takashi Miida, Toshio Naito, Toshio Naito, Teruo Kirikae, Teruo Kirikae, Tatsuya Tada, Yoko Tabe, Yoko Tabe   +20 more
doaj   +1 more source

A New Method for Extraction and Analysis of Ricin Samples through MALDI-TOF-MS/MS

Toxins, 2019
We report for the first time the efficient use of accelerated solvent extraction (ASE) for extraction of ricin to analytical purposes, followed by the combined use of sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE), Matrix-assisted ...
Roberto B. Sousa, Keila S. C. Lima, Caleb G. M. Santos, Tanos C. C. França, Eugenie Nepovimova, Kamil Kuca, Marcos R. Dornelas, Antonio L. S. Lima   +7 more
doaj   +1 more source

Covalently Linked Peptides and Membrane Potential Enable CyaA Segment Translocation

Advanced Science, EarlyView.
Using a newly developed Droplet Interface Bilayer‐Pipette assay, the authors show that two segments of the CyaA toxin cross membranes by distinct mechanisms. One segment translocates spontaneously, whereas the translocation of the other depends on membrane potential.
Gaia Scilironi, Nicolas Carvalho, Jacinthe Frangieh, Corentin Léger, Dorothée Raoux‐Barbot, J. Iñaki Guijarro, Daniel Ladant, Sophie Cribier, Nicolas Rodriguez, Alexandre Chenal   +9 more
wiley   +1 more source

Impact of rapid MALDI-TOF MS and susceptibilities on hospitalized children with Gram-negative bloodstream infections

Microbiology Spectrum
Matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS) offers fast identification to improve time to appropriate antibiotics in Gram-negative bloodstream infections (GN-BSIs).
Maria E. Santos, Claire Justin, Margaret J. Trost, Jeffrey Bender, Choo Phei Wee, Kanokporn Mongkolrattanothai, Jennifer Dien Bard   +6 more
doaj   +1 more source