Time-of-flight maSurface-assisted laser desorptionIonizationMALDIIonsMassUltravioletSpectraPulsesCharacterizationWavelengthFluenceRadiationBeamNitrogen laserSpeciesSurfacesShowChemistryAbsorptionMetalTechniquesHighUltraviolet laser desorptionAcoustic desorptionSpectrometryProteinsDetectionMolecularChemistrySurfaceNitrogenStudyTechniques
Time-of-flight ma17
- Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) was employed to characterize the polygalloyl polyflavan-3-ols (PGPF) in grape seed extracts. (nih.gov)
- In recent years matrix assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS) has emerged as a tool for microbial identification and diagnosis. (matis.is)
- Evaluation of the Andromas matrix-assisted laser desorption ionization-time of flight mass spectrometry system for identification of aerobically growing Gram-positive bacilli. (pasteur.fr)
- Matrix-associated laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS) is a rapid and simple microbial identification method. (pasteur.fr)
- It comprises a protocol for cleanup of whole blood samples, followed by direct ultraviolet laser desorption (LD) time-of-flight mass spectrometry. (johnshopkins.edu)
- Matrix-Assisted Laser Desorption/Ionization Time-of-Flight Mass Spectrometry (MALDI-TOF MS) is widely used in clinical laboratories for routine identification of bacteria and yeasts. (knaw.nl)
- Dive into the research topics of 'A New Filter Based Cultivation Approach for Improving Aspergillus Identification using Matrix-Assisted Laser Desorption/Ionization Time-of-Flight Mass Spectrometry (MALDI-TOF MS)'. Together they form a unique fingerprint. (knaw.nl)
- A New Filter Based Cultivation Approach for Improving Aspergillus Identification using Matrix-Assisted Laser Desorption/Ionization Time-of-Flight Mass Spectrometry (MALDI-TOF MS) . Mycopathologia , 187 (1), 39-52. (knaw.nl)
- Dive into the research topics of 'Efficient identification of Malassezia yeasts by matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS)'. Together they form a unique fingerprint. (uab.cat)
- Efficient identification of Malassezia yeasts by matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS) . British Journal of Dermatology , 170 , 332-341. (uab.cat)
- Ma-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS) has been reported to be a rapid and reliable diagnostic tool to identify clinically important yeasts, but so far no data have been reported on identification of Malassezia isolates with this technique. (uab.cat)
- Matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS) has been developed for the rapid identification of microorganisms and proved to be a robust tool for the recognition of bacterial species. (uab.cat)
- Although the matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF MS) systems are relatively less studied, they have been reported to be a promising method for the identification of anaerobes. (elsevierpure.com)
- Matrix-Assisted Laser Desorption/Ionization Time-Of-Flight Mass Spectrometry (MALDI-TOF MS) technique for identification of Pseudomonas aeruginosa isolated from broilers and human. (ekb.eg)
- Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) was used for species determination. (lu.se)
- Cell proteins were analysed with 2-dimensional electrophoresis and differentially expressed proteins were identified by matrix-assisted laser desorption/ ionization time-of-flight mass spectrometry. (who.int)
- Two-dimensional differential gel electrophoresis (2D-DIGE) and matrix-assisted laser desorption/ionization-time of flight-mass spectrometry (MALDI-TOF-MS) based proteomics was used to study differential protein abundance in various B cell types during B cell maturation (cell lines are listed in Supplementary Table 1 ). (lu.se)
Surface-assisted laser desorption3
- The surface-assisted laser desorption/ionization (SALDI) approach uses a liquid plus graphite particle matrix. (wikipedia.org)
- Surface-assisted laser desorption/ionization mass spectrometry (SALDI-MS) is ideally suited for the high-throughput analysis of small molecules in bodily fluids (e.g. saliva, urine, and blood plasma). (bsz-bw.de)
- In this study, we propose a simple and rapid technique for characterization of free fatty acids and triacylglycerides (TAG) based on palladium nanoparticular (Pd-NP) surface-assisted laser desorption/ionization (SALDI) mass spectrometry (MS). The implemented Pd-NP material allowed detection of free fatty acids and TAGs exclusively as [M + K]+ ions in positive ion mode. (tib.eu)
Ionization22
- Soft laser desorption (SLD) is laser desorption of large molecules that results in ionization without fragmentation. (wikipedia.org)
- The term "soft laser desorption" has not been widely used by the mass spectrometry community, which in most cases uses matrix-assisted laser desorption/ionization (MALDI) to indicate soft laser desorption ionization that is aided by a separate matrix compound. (wikipedia.org)
- Koichi Tanaka was awarded 1/4 of the prize for his use of a mixture of cobalt nanoparticles and glycerol in what he called the "ultra fine metal plus liquid matrix method" of laser desorption ionization. (wikipedia.org)
- The term soft laser desorption is now used to refer to MALDI as well as "matrix free" methods for laser desorption ionization with minimal fragmentation. (wikipedia.org)
- A colloidal graphite matrix has been called "GALDI" for colloidal graphite-assisted laser desorption/ionization. (wikipedia.org)
- The desorption ionization on silicon (DIOS) approach is laser desorption/ionization of a sample deposited on a porous silicon surface. (wikipedia.org)
- This approach was later commercialized as Nanowire-assisted laser desorption/ionization (NALDI) uses a target consisting of nanowires made from metal oxides or nitrides. (wikipedia.org)
- The surface-enhanced laser desorption/ionization (SELDI) variant is similar to MALDI, but uses a biochemical affinity target. (wikipedia.org)
- Matrix-Assisted Laser Desorption Ionization-Mass Spectrometry Signal E" by N Rodthongkum, YB Chen et al. (umass.edu)
- This thesis encompasses work done to aid in the incorporation of matrix-assisted laser desorption/ionization - mass spectrometry imaging (MALDI-MSI) into the forensic workflow. (ojp.gov)
- Nursing Central , nursing.unboundmedicine.com/nursingcentral/view/Tabers-Dictionary/737987/all/matrix_assisted_laser_desorption_ionization. (unboundmedicine.com)
- Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus, MeSH (Medical Subject Headings) . (rush.edu)
- This graph shows the total number of publications written about "Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization" by people in this website by year, and whether "Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization" was a major or minor topic of these publications. (rush.edu)
- Below are the most recent publications written about "Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization" by people in Profiles. (rush.edu)
- Malik, MI, Trathnigg, B & Saf, R 2009, ' Characterization of ethylene oxide - propylene oxide block copolymers by combination of different chromatographic techniques and matrix-assisted laser desorption ionization time-of-flight mass spectroscopy ', Journal of Chromatography A , vol. 1216, pp. 6627-6635. (elsevierpure.com)
- Here we report the first application of a matrix-assisted laser desorption/ionization (MALDI) triplequadrupole mass spectrometer for targeted proteomics. (canada.ca)
- Matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) mass spectrometry, and its associated analytic software, was recently approved for clinical microbiology diagnostic use by the United States Food and Drug Administration. (temple.edu)
- A method based on the analyte-to-matrix ion abundance ratio in the matrix-assisted laser desorption ionization (MALDI) spectrum was used for the quantification of phosphatidylcholine (PC) in mouse brain tissue. (kribb.re.kr)
- Herein, we report that breast cancer (BC) patients can be distinguished from cancer-free (NC) controls by serum immunoglobulin G (IgG) crystallizable fragment (Fc) region N-glycosylation profiling using matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS). Recently, there has been much progress in the field of tumor immunology. (elsevierpure.com)
- Metabolite characterization was conducted with matrix assisted laser desorption ionization (MALDI) and liquid chromatography mass spectrometry (LC-MS). The metabolomics analysis revealed a significant increase in 44 metabolites in BALF, including 1,2-Dipalmitoyl-sn-glycero-3-phosphoglycerol (DPPG) and cholesterol in the rats exposed to 112 microg at the 7- and 28-day time points. (cdc.gov)
- Analysis of carbohydrates and glycoconjugates by matrix-assisted laser desorption/ionization mass spectrometry: An update for 2017-2018. (bvsalud.org)
- We used 3 different approaches: biochemical testing, matrix-assisted laser desorption ionization time-of-flight (MALDI-TOF) mass spectrometry, and 16S ribosomal RNA (rRNA) gene sequencing. (medscape.com)
MALDI2
- The "modern" MALDI approach came into being several years after the first soft laser desorption of proteins was demonstrated. (wikipedia.org)
- The technique known as surface-enhanced neat desorption (SEND) is a related variant of MALDI with the matrix is covalently linked to the target surface. (wikipedia.org)
Ions2
- The matrix absorbs the laser energy, thus inducing a soft disintegration of the sample-matrix mixture into free (gas phase) matrix and analyte molecules and molecular ions. (rush.edu)
- However, thermal desorption spectra indicate that preformed ions and cationized species can be generated by purely thermal means, while differences in fast atom bombardment and field desorption spectra indicate the importance of external or localized fields in the kinds of ions extracted from the condensed phase. (johnshopkins.edu)
Mass2
- Although nanostructures are typically formed by etching, laser etching can also be used, for example as in laser-induced silicon microcolumn arrays (LISMA) for matrix-free mass spectrometry analysis. (wikipedia.org)
- The desorption behavior has been investigated with surface enhanced Raman scattering (SERS), mass spectrometry, conventional thermal desorption and X-ray photoemission spectroscopy. (spie.org)
Ultraviolet1
- Each sample is irradiated by 240 brief pulses from an ultraviolet nitrogen laser (337 nm), desorbed from the plate into the gas phase and ionized. (matis.is)
Spectra1
- The desorption methods show similarities in their spectra and suggest common mechanisms. (johnshopkins.edu)
Pulses2
- It is observed that when the ring mode vibration of pyridine molecules adsorbed on silver island films at either 15K or 95K is excited by CO 2 laser pulses in 1025~1042 cm -1 frequency region, pyridine desorption from the metal surfaces is readily detected by these surface techniques. (spie.org)
- Proper diagnostics of intense free-electron laser (FEL) X-ray pulses is indisputably important for experimental data analysis as well as for the protection of beamline optical elements. (utwente.nl)
Characterization1
- In this paper, we report the first characterization of a defocused MHz 13.5-nm beam generated by the free-electron laser in Hamburg (FLASH) using the method of multi-pulse desorption imprints in poly(methyl methacrylate)(PMMA). (utwente.nl)
Wavelength1
- Analyte molecules are embedded in an excess matrix of small organic molecules that show a high resonant absorption at the laser wavelength used. (rush.edu)
Fluence1
- The influence of experimental factors, such as desorbed ion polarity, laser exposure and fluence, sample size, and parasite growth stage, on the threshold for parasite detection is also addressed. (johnshopkins.edu)
Radiation2
- In this report, we present the first study of resonantly stimulated desorption of pyridine from silver surfaces excited by polarized CO 2 laser radiation. (spie.org)
- The desorption yield per laser pulse increases nonlinearly with the laser intensity and is strongly dependent on the polarization of the incident radiation. (spie.org)
Beam2
- Consideration of laser beam parameters (spot size, rastering across the sample surface) and actual sample consumption suggests that the detection limits can be further improved by at least an order of magnitude. (johnshopkins.edu)
- The generation process is driven by a Gaussian infrared laser beam that is perturbed by a weak beam of the same colour that carries OAM. (nature.com)
Nitrogen laser1
- Countering this argument is the fact that Tanaka was the first to use a 337 nm nitrogen laser while Karas and Hillenkamp were using a 266 nm Nd:YAG laser. (wikipedia.org)
Species1
- The results clearly show the important role played by the vibrational excitation of adsorbed species in the observed desorption phenomenon. (spie.org)
Surfaces1
- There is yet a third group of authors who claim no difference in adhesion to surfaces prepared with either laser irradiation or rotary instruments 15 . (bvsalud.org)
Show1
- Reconstructed response functions show a great agreement with the theoretical desorption response function model. (utwente.nl)
Chemistry1
- The term soft laser desorption was used most notably by the Nobel Foundation in public information released in conjunction with the 2002 Nobel Prize in Chemistry. (wikipedia.org)
Absorption1
- Among several alternatives for preparation of conservative cavities, the use of Er,Cr:YSGG (Erbium, chromium:yttrium-scandiumgallium-garnet) laser has been proposed due to its high absorption of water and hydroxyapatite 2 . (bvsalud.org)
Metal1
- The technique known as laser induced acoustic desorption (LIAD) is transmission geometry LDI with a metal film target. (wikipedia.org)
Techniques2
- To evaluate the leakage on Er,Cr:YSGG laser- and bur- prepared Class V cavities restored with a silorane-based composite resin using different insertion techniques. (bvsalud.org)
- Er,Cr:YSGG laser, when safely used in conjunction with air/water spray 3 andappropriate irradiation parameters, have some advantages over conventional cavity preparation techniques, namely production of less noise and vibration, preservation of more tooth structure and less injury to pulp tissue, antibacterial properties, and no need of anesthesia during preparation 4-5 . (bvsalud.org)
High1
- The algorithm is applied to experimental data of single-shot ablation imprints and multi-shot desorption imprints at both low (10 Hz) and high (1 MHz) repetition rates. (utwente.nl)
Ultraviolet laser desorption1
- It comprises a protocol for cleanup of whole blood samples, followed by direct ultraviolet laser desorption (LD) time-of-flight mass spectrometry. (nih.gov)
Acoustic desorption1
- The technique known as laser induced acoustic desorption (LIAD) is transmission geometry LDI with a metal film target. (wikipedia.org)
Spectrometry3
- Although nanostructures are typically formed by etching, laser etching can also be used, for example as in laser-induced silicon microcolumn arrays (LISMA) for matrix-free mass spectrometry analysis. (wikipedia.org)
- Detection of Plasmodium falciparum in pregnancy by laser desorption mass spectrometry. (nih.gov)
- In 2001, it was first demonstrated that the organic dye crystal violet from a blue ballpoint pen ink could be detected directly from paper by using laser desorption mass spectrometry (LDMS). (ojp.gov)
Proteins1
Detection2
- Consideration of laser beam parameters (spot size, rastering across the sample surface) and actual sample consumption suggests that the detection limits can be further improved by at least an order of magnitude. (nih.gov)
- The influence of experimental factors, such as desorbed ion polarity, laser exposure and fluence, sample size, and parasite growth stage, on the threshold for parasite detection is also addressed. (nih.gov)
Molecular2
- Femtosecond laser-induced dynamics of molecules on metal surfaces can be seamlessly simulated with all nuclear degrees of freedom using ab initio molecular dynamics with electronic friction (AIMDEF) and stochastic forces, which are a function of a time-dependent electronic temperature. (irb.hr)
- To keep ab initio accuracy and allow for better statistical sampling, we have developed a neural network interatomic potential of hydrogen on the Ru(0001) surface based on data from ab initio molecular dynamics simulations of recombinative desorption. (irb.hr)
Chemistry1
- The term soft laser desorption was used most notably by the Nobel Foundation in public information released in conjunction with the 2002 Nobel Prize in Chemistry. (wikipedia.org)
Surface1
- This has recently been demonstrated for hot-electron-mediated desorption of hydrogen molecules from a Ru(0001) surface covered with H and D atoms [Juaristi, J. I. Phys. (irb.hr)
Nitrogen1
- Countering this argument is the fact that Tanaka was the first to use a 337 nm nitrogen laser while Karas and Hillenkamp were using a 266 nm Nd:YAG laser. (wikipedia.org)
Study1
- As a result, we can systematically study a wide range of these parameters and follow dynamics over longer times than hitherto possible, demonstrating that our methodology is a promising way to realistically simulate femtosecond laser-induced dynamics of molecules on metals. (irb.hr)
Techniques1
- The MWCNTs are decorated by Pd nanoparticles via various techniques including laser ablation in liquid, chemical reduction, and simultaneously both of them. (researchgate.net)