نتایج جستجو برای: tof

تعداد نتایج: 12111  

2017
Sören Schubert Markus Kostrzewa

Within less than a decade matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) has become a gold standard for microbial identification in clinical microbiology laboratories. Besides identification of microorganisms the typing of single strains as well as the antibiotic and antimycotic resistance testing has come into focus in order to speed up the microbio...

Journal: :علوم گیاهان زراعی ایران 0
فواد فاتحی دانشجوی سابق دکتری،پردیس کشاورزی و منابع طبیعی دانشگاه تهران عبدالهادی حسین زاده دانشیار پردیس کشاورزی و منابع طبیعی دانشگاه تهران هوشنگ علیزاده استادیار پردیس کشاورزی و منابع طبیعی دانشگاه تهران

a proteomic approach was conducted to further understand the mechanism of plant responses to salinity in hordeum bulbosom. three-week-old seedlings were treated with 300 mm of nacl for 21 days. total proteins of fourth leaf were extracted and separated by two-dimensional gel electrophoresis. more than 500 protein spots were reproducibly detected, including 46 spots that were up-regulated and 16...

2012
Qian Wu Ming-Hua Li

BACKGROUND A subarachnoid hemorrhage (SAH) due to the rupture of a cerebral aneurysm (CA) is a devastating event associated with high rates of mortality. Magnetic resonance angiography (MRA), as a noninvasive technique, is typically used initially. The object of our study is to evaluate the feasibility of 4D time-resolved MRA with keyhole (4D-TRAK) for the diagnostic accuracy and reliability of...

Journal: :Clinical microbiology reviews 2013
Andrew E Clark Erin J Kaleta Amit Arora Donna M Wolk

Within the past decade, clinical microbiology laboratories experienced revolutionary changes in the way in which microorganisms are identified, moving away from slow, traditional microbial identification algorithms toward rapid molecular methods and mass spectrometry (MS). Historically, MS was clinically utilized as a high-complexity method adapted for protein-centered analysis of samples in ch...

Journal: :Enfermedades infecciosas y microbiologia clinica 2014
María Guembe Belén Rodríguez-Sánchez Adrián Ruiz Pablo Martín-Rabadán Marta Rodríguez-Créixems Emilio Bouza

INTRODUCTION The use of the matrix-assisted laser desorption/ionization time of flight (MALDI-TOF) mass spectrometry has shown to be effective and fast in some clinical specimens for the identification of colonizing microorganisms. The objective of the study was to analyze the validity values for the prediction of colonization and catheter-related bloodstream infection (C-RBSI) of the MALDI-TOF...

Journal: :Mass spectrometry reviews 1999
M Frank S E Labov G Westmacott W H Benner

Energy-sensitive calorimetric detectors that operate at low temperatures ("cryogenic detectors") have recently been applied for the first time as ion detectors in time-of-flight mass spectrometry. Compared to conventional, ionization-based detectors, which rely on secondary electron formation or the charge created in a semiconductor, cryogenic detectors measure low-energy solid state excitation...

Journal: :Journal of clinical microbiology 2010
Agnès Ferroni Stéphanie Suarez Jean-Luc Beretti Brunhilde Dauphin Emmanuelle Bille Julie Meyer Marie-Elisabeth Bougnoux Alexandre Alanio Patrick Berche Xavier Nassif

Delays in the identification of microorganisms are a barrier to the establishment of adequate empirical antibiotic therapy of bacteremia. Matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF-MS) allows the identification of microorganisms directly from colonies within minutes. In this study, we have adapted and tested this technology for use with blood culture...

2011
Mojtaba Rahimi Varposhti Saied Morteza Heidari Mohammadreza Safavi Azim Honarmand Shahnam Raeesi

BACKGROUND Residual neuromuscular blockade continues to be a clinical problem after surgical procedures. The purpose of this study was to determine the incidence of residual paralysis in the postanesthesia care unit (PACU) after a single intubating dose of twice of the 95% estimated dose (ED95) of a nondepolarizing muscle relaxant with an intermediate duration of action. METHODS Two hundred a...

2010
Kathryn M. Bolles Fang Cheng Jesse Burk-Rafel Manish Dubey Daniel M. Ratner

Covalent modification of surfaces with carbohydrates (glycans) is a prerequisite for a variety of glycomics-based biomedical applications, including functional biomaterials, glycoarrays, and glycan-based biosensors. The chemistry of glycan immobilization plays an essential role in the bioavailability and function of the surface bound carbohydrate moiety. However, the scarcity of analytical meth...

Journal: :Biochimica et biophysica acta 2006
Mariëlle J van Breemen Boris Bleijlevens Chris G de Koster Johannes M F G Aerts

SELDI-TOF MS assisted the discovery of the chemokine CCL18/PARC as plasma biomarker for pathological storage cells in Gaucher disease patients. Prognostic elevation of CCL18 in blood of Gaucher patients has been confirmed by ELISA. Given its low molecular mass, positive charge, and relatively high abundance, CCL18 seems a particular attractive protein for SELDI-TOF based quantitation. Therefore...

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