Chemist, Instrument Development and Deployment Team Leader, Biological Sciences
Chemist, Instrument Development and Deployment Team Leader, Biological Sciences

Biography

Yehia M. Ibrahim is a senior scientist at the Biological Sciences Division at PNNL. He earned his BS and MS degrees in chemistry from Cairo University. His MS degree research involved understanding the physicochemical properties of materials using ultraviolet spectroscopy and molecular orbital calculations. He earned his PhD in chemistry from Virginia Commonwealth University (VCU) in 2003 and spent one year as postdoctoral fellow at VCU before coming to PNNL in 2005. Dr. Ibrahim has authored over 90 journal articles and holds 24 U.S. patents in the fields of mass spectrometry and ion mobility spectrometry (IMS). His research is focused on developing new mass spectrometry and ion mobility-based technologies to improve the sensitivity and the specificity of ion mobility and mass spectrometry in the fields of proteomics and metabolomics. His early work at PNNL involved developing high-pressure ion funnel and ion funnel trap components and integrating them into the IMS-time of flight (TOF) mass spectrometer. Ibrahim’s work has also led to developing a new ultrasensitive IMS-TOF platform for biomolecule analysis for which PNNL was awarded a 2013 R&D 100 award. This platform has since been licensed and commercialized by Agilent Technologies (6560 IMS-QTOF).

Currently, Ibrahim is leading the research efforts for developing Structures for Lossless Ion Manipulations (SLIM) technology, which was also awarded a 2017 R&D 100 award. His team was also awarded the 2018 Federal Laboratory Consortium Award for Excellence in Technology Transfer of SLIM technology to MOBILion Systems Inc. In 2019, Ibrahim received awards for PNNL Inventor of the Year and Distinguished Inventor of Battelle. Dr. Ibrahim has also published on thermochemistry, kinetics, and laser spectroscopy of ion molecules reactions and clusters structures using ion mobility and molecular orbital calculations. He is currently the principal investigator on two National Institutes of Health grants to develop the next-generation ion mobility platforms.

Disciplines and Skills

  • Ion Mobility
  • FAIMS
  • Technology development
  • Proteomics
  • Metabolomics

Education

  • MS, Physical Chemistry, Cairo University
  • PhD, Physical Chemistry, Virginia Commonwealth University

Affiliations and Professional Service

  • The American Society for Mass Spectrometry
  • The American Chemical Society

Awards and Recognitions

  • 2019 Inventor of the Year, PNNL
  • 2019 Distinguished Inventor of Battelle
  • Federal Laboratory Consortium Award for Excellence in Technology Transfer (2018)
  • Mentor of the Year, PNNL (2016)
  • Key Contributor Award 2012, 2013, 2014, 2015
  • Two R&D 100 Awards (2013 and 2017)
  • Resident Research Associateship from the National Research Council at NIST (National Institute of Standards and Technology) and NIH (National Institute of Health)
  • Graduate School Research Fellowship, Virginia Commonwealth University
  • Bass Scholarship, Virginia Commonwealth University
  • Chairman Award in Gordon Conference on Gaseous Ions: Structure, Energetics & Reactions (2003)

Publications

2020

  • Li A., V. Garimella, and Y.M. Ibrahim. 2020. "A Simulation Study of the Influence of the Traveling Wave Patterns on Ion Mobility Separations in Structures for Lossless Ion Manipulations." Analyst 145, no. 1:240-248. PNNL-SA-145853. doi:10.1039/C9AN01509D

2019

  • Attah I.K., V. Garimella, I.K. Webb, G. Nagy, R.V. Norheim, C.E. Schimelfenig, and Y.M. Ibrahim, et al. 2019. "Dual Polarity Ion Confinement and Mobility Separations." Journal of the American Society for Mass Spectrometry 30, no. 6:967-976. PNNL-SA-132014. doi:10.1007/s13361-019-02138-1
  • Couvillion S.P., Y. Zhu, G. Nagy, J.N. Adkins, C.K. Ansong, R.S. Renslow, and P.D. Piehowski, et al. 2019. "New mass spectrometry technologies contributing towards comprehensive and high throughput omics analyses of single cells." Analyst 144, no. 3:794-807. PNNL-SA-137430. doi:10.1039/C8AN01574K
  • Dou M., C.D. Chouinard, Y. Zhu, G. Nagy, A.V. Liyu, Y.M. Ibrahim, and R.D. Smith, et al. 2019. "Nanowell-mediated multidimensional separations combining nanoLC with SLIM IM-MS for rapid, high-peak-capacity proteomic analyses." Analytical and Bioanalytical Chemistry 411, no. 21:5363-5372. PNNL-SA-146403. doi:10.1007/s00216-018-1452-5
  • Garcellano R.C., S. Moinuddin, R.P. Young, M.E. Bowden, M. Zhou, R.S. Renslow, and Y. Yesiltepe, et al. 2019. "Isolation of Tryptanthrin and Reassessment of Evidence for its Isobaric Isostere Wrightiadione in Plants of the Wrightia Genus." Journal of Natural Products 82, no. 3:440-448. PNNL-SA-135279. doi:10.1021/acs.jnatprod.8b00567
  • Garimella V., G. Nagy, Y.M. Ibrahim, and R.D. Smith. 2019. "Opening new paths for biological applications of ion mobility - Mass spectrometry using structures for lossless ion manipulations." Trends in Analytical Chemistry. TrAC 116. PNNL-SA-140349. doi:10.1016/j.trac.2019.04.021
  • Nagy G., D. Velickovic, R.K. Chu, A.A. Carrell, D.J. Weston, Y.M. Ibrahim, and C.R. Anderton, et al. 2019. "Towards Resolving the Spatial Metabolome with Unambiguous Molecular Annotations in Complex Biological Systems by Coupling Mass Spectrometry Imaging with Structures for Lossless Ion Manipulations." Chemical Communications 55, no. 3:306-309. PNNL-SA-138045. doi:10.1039/C8CC07482H
  • Nagy G., K. Kedia, I.K. Attah, V. Garimella, Y.M. Ibrahim, V.A. Petyuk, and R.D. Smith. 2019. "Separation of ß-Amyloid Tryptic Peptide Species with Isomerized and Racemized L-Aspartic Residues with Ion Mobility in Structures for Lossless Ion Manipulations." Analytical Chemistry 91, no. 7:4374-4380. PNNL-SA-138885. doi:10.1021/acs.analchem.8b04696
  • Wojcik R., G. Nagy, I.K. Attah, I.K. Webb, V. Garimella, K.K. Weitz, and A.L. Hollerbach, et al. 2019. "SLIM Ultrahigh Resolution Ion Mobility Spectrometry Separations of Isotopologues and Isotopomers Reveal Mobility Shifts due to Mass Distribution Changes." Analytical Chemistry 91, no. 18:11952-11962. PNNL-SA-147394. doi:10.1021/acs.analchem.9b02808

2018

  • Bilbao Pena A., B.C. Gibbons, G.W. Slysz, K.L. Crowell, M.E. Monroe, Y.M. Ibrahim, and R.D. Smith, et al. 2018. "An Algorithm to Correct Saturated Mass Spectrometry Ion Abundances for Enhanced Quantitation and Mass Accuracy in Omic Studies." International Journal of Mass Spectrometry 427. PNNL-SA-126312. doi:10.1016/j.ijms.2017.11.003
  • Chouinard C.D., G. Nagy, I.K. Webb, T. Shi, E.M. Baker, S.A. Prost, and T. Liu, et al. 2018. "Improved Sensitivity and Separations for Phosphopeptides using Online Liquid Chromotography Coupled with Structures for Lossless Ion Manipulations Ion Mobility-Mass Spectrometry." Analytical Chemistry 90, no. 18:10889-10896. PNNL-SA-135107. doi:10.1021/acs.analchem.8b02397
  • Chouinard C.D., G. Nagy, I.K. Webb, V. Garimella, E.M. Baker, Y.M. Ibrahim, and R.D. Smith. 2018. "Rapid Ion Mobility Separations of Bile Acid Isomers Using Cyclodextrin Adducts and Structures for Lossless Ion Manipulations." Analytical Chemistry 90, no. 18:11086-11091. PNNL-SA-136059. doi:10.1021/acs.analchem.8b02990
  • Hamid A.M., A. Prabhakaran Nair Syamala Amma, V. Garimella, Y.M. Ibrahim, and R.D. Smith. 2018. "Characterization of applied fields for ion mobility separations in traveling wave based structures for lossless ion manipulations (SLIM)." International Journal of Mass Spectrometry 430. PNNL-SA-127372. doi:10.1016/j.ijms.2018.03.006
  • Nagy G., C.D. Chouinard, I.K. Attah, I.K. Webb, V. Garimella, Y.M. Ibrahim, and E.M. Baker, et al. 2018. "Distinguishing Enantiomeric Amino Acids with Chiral Cyclodextrin Adducts and Structures for Lossless Ion Manipulations." Electrophoresis 39, no. 24:3148-3155. PNNL-SA-136376. doi:10.1002/elps.201800294
  • Nagy G., I.K. Attah, V. Garimella, K. Tang, Y.M. Ibrahim, E.M. Baker, and R.D. Smith. 2018. "Unraveling the Isomeric Heterogeneity of Glycans: Ion Mobility Separations in Structures for Lossless Ion Manipulations." Chemical Communications 54, no. 83:11701-11704. PNNL-SA-137134. doi:10.1039/C8CC06966B
  • Prabhakaran Nair Syamala Amma A., A.M. Hamid, V. Garimella, B.R. Valenzuela, R.G. Ewing, Y.M. Ibrahim, and R.D. Smith. 2018. "A Hybrid Constant and Oscillatory Field Ion Mobility Analyzer in Structures for Lossless Ion Manipulations." Journal of the American Society for Mass Spectrometry 29, no. 2:342-351. PNNL-SA-126448. doi:10.1007/s13361-017-1841-6

2017

  • Deng L., I.K. Webb, V. Garimella, A.M. Hamid, X. Zheng, R.V. Norheim, and S.A. Prost, et al. 2017. "Serpentine Ultralong Path with Extended Routing (SUPER) High Resolution Traveling Wave Ion Mobility-MS using Structures for Lossless Ion Manipulations." Analytical Chemistry 89, no. 8:4628-4634. PNNL-SA-123438. doi:10.1021/acs.analchem.7b00185
  • Deng L., V. Garimella, A.M. Hamid, I.K. Webb, I.K. Attah, R.V. Norheim, and S.A. Prost, et al. 2017. "Compression Ratio Ion Mobility Programming (CRIMP) Accumulation and Compression of Billions of Ions for Ion Mobility-Mass Spectrometry Using Traveling Waves in Structures for Lossless Ion Manipulations (SLIM)." Analytical Chemistry 89, no. 12:6432-6439. PNNL-SA-123357. doi:10.1021/acs.analchem.7b00189
  • Garimella V., I.K. Webb, A. Prabhakaran Nair Syamala Amma, I.K. Attah, Y.M. Ibrahim, and R.D. Smith. 2017. "Design of a TW-SLIM Module for Dual Polarity Confinement, Transport, and Reactions." Journal of the American Society for Mass Spectrometry 28, no. 7:1442-1449. PNNL-SA-123670. doi:10.1007/s13361-017-1680-5
  • Hosseinzadeh P., G. Bhardwaj, V.K. Mulligan, M.D. Shortridge, T.W. Craven, F. Pardo-Avila, and S.A. Rettie, et al. 2017. "Comprehensive computational design of ordered peptide macrocycles." Science 358, no. 6369:1461-1466. PNNL-SA-128820. doi:10.1126/science.aap7577
  • Ibrahim Y.M., A.M. Hamid, J.T. Cox, V. Garimella, and R.D. Smith. 2017. "Ion Elevators and Escalators in Multi-level Structures for Lossless Ion Manipulations." Analytical Chemistry 89, no. 3:1972-1977. PNNL-SA-122334. doi:10.1021/acs.analchem.6b04500
  • Ibrahim Y.M., A.M. Hamid, L. Deng, V. Garimella, I.K. Webb, E.M. Baker, and R.D. Smith. 2017. "New Frontiers for Mass Spectrometry based upon Structures for Lossless Ion Manipulations." Analyst 142, no. 7:1010-1021. PNNL-SA-123137. doi:10.1039/C7AN00031F
  • Kyle J.E., C.P. Casey, K.G. Stratton, E.M. Zink, Y. Kim, X. Zheng, and M.E. Monroe, et al. 2017. "Comparing Identified and Statistically Significant Lipids and Metabolites in 15-Year Old Serum and Dried Blood Spot Samples for Longitudinal Studies." Rapid Communications in Mass Spectrometry 31, no. 5:447-456. PNNL-SA-121197. doi:10.1002/rcm.7808
  • Ma J., C.P. Casey, X. Zheng, Y.M. Ibrahim, C.S. Wilkins, R.S. Renslow, and D.G. Thomas, et al. 2017. "PIXiE: An Algorithm for Automated Ion Mobility Arrival Time Extraction and Collision Cross Section Calculation using Global Data Association." Bioinformatics 33, no. 17:2715-2722. PNNL-SA-122828. doi:10.1093/bioinformatics/btx305
  • Tummalacherla M., V. Garimella, S.A. Prost, and Y.M. Ibrahim. 2017. "Toward Artifact-Free Data in Hadamard Transform-Based Double Multiplexing of Ion Mobility - Orbitrap Mass Spectrometry." Analyst 142, no. 10:1735-1745. PNNL-SA-123964. doi:10.1039/C7AN00289K
  • Zheng X., L. Deng, E.M. Baker, Y.M. Ibrahim, V.A. Petyuk, and R.D. Smith. 2017. "Distinguishing D- and L-Aspartic and Isoaspartic Acids in Amyloid ß Peptides with Ultrahigh Resolution Ion Mobility Spectrometry." Chemical Communications 53, no. 56:7913-7916. PNNL-SA-124064. doi:10.1039/C7CC03321D
  • Zheng X., R. Wojcik, X. Zhang, Y.M. Ibrahim, K.E. Burnum-Johnson, D.J. Orton, and M.E. Monroe, et al. 2017. "Coupling Front-end Separations, Ion Mobility Spectrometry, and Mass Spectrometry for Enhanced Multidimensional Biological and Environmental Analyses." Annual Review of Analytical Chemistry 10. PNNL-SA-121198. doi:10.1146/annurev-anchem-061516-045212
  • Zheng X., R.S. Renslow, M.M. Makola, I.K. Webb, L. Deng, D.G. Thomas, and N. Govind, et al. 2017. "Structural Elucidation of cis/trans Dicaffeoylquinic Acid Photoisomerization Using Ion Mobility Spectrometry-Mass Spectrometry." The Journal of Physical Chemistry Letters 8, no. 7:1381-1388. PNNL-SA-123119. doi:10.1021/acs.jpclett.6b03015

2016

  • Burnum-Johnson K.E., S. Nie, C.P. Casey, M.E. Monroe, D.J. Orton, Y.M. Ibrahim, and M.A. Gritsenko, et al. 2016. "Simultaneous Proteomic Discovery and Targeted Monitoring using Liquid Chromatography, Ion Mobility Spectrometry and Mass Spectrometry." Molecular and Cellular Proteomics 15, no. 12:3694-3705. PNNL-SA-118308. doi:10.1074/mcp.M116.061143
  • Chen T., Y.M. Ibrahim, I.K. Webb, V. Garimella, X. Zhang, A.M. Hamid, and L. Deng, et al. 2016. "Mobility-Selected Ion Trapping and Enrichment Using Structures for Lossless Ion Manipulations." Analytical Chemistry 88, no. 3:1728-1733. PNNL-SA-113681. doi:10.1021/acs.analchem.5b03910
  • Deng L., Y.M. Ibrahim, A.M. Hamid, V. Garimella, I.K. Webb, X. Zheng, and S.A. Prost, et al. 2016. "Ultra-High Resolution Ion Mobility Separations Utilizing Traveling Waves in a 13-m Serpentine Path Length Structures for Lossless Ion Manipulations Module." Analytical Chemistry 88, no. 18:8957-8964. PNNL-SA-118270. doi:10.1021/acs.analchem.6b01915
  • Deng L., Y.M. Ibrahim, E.S. Baker, N.A. Aly, A.M. Hamid, X. Zhang, and X. Zheng, et al. 2016. "Ion Mobility Separations of Isomers based upon Long Path Length Structures for Lossless Ion Manipulations Combined with Mass Spectrometry." ChemistrySelect 1, no. 10:2396-2399. PNNL-SA-116187. doi:10.1002/slct.201600460
  • Deng L., Y.M. Ibrahim, V. Garimella, I.K. Webb, A.M. Hamid, R.V. Norheim, and S.A. Prost, et al. 2016. "Greatly Increasing Trapped Ion Populations for Mobility Separations Using Traveling Waves in Structures for Lossless Ion Manipulations." Analytical Chemistry 88, no. 20:10143-10150. PNNL-SA-119618. doi:10.1021/acs.analchem.6b02678
  • Garimella V., A.M. Hamid, L. Deng, Y.M. Ibrahim, I.K. Webb, E.M. Baker, and S.A. Prost, et al. 2016. "Squeezing of Ion Populations and Peaks in Traveling Wave Ion Mobility Separations and Structures for Lossless Ion Manipulations using Compression Ratio Ion Mobility Programming." Analytical Chemistry 88, no. 23:11877-11885. PNNL-SA-121131. doi:10.1021/acs.analchem.6b03660
  • Garimella V., Y.M. Ibrahim, K. Tang, I.K. Webb, E.M. Baker, A.V. Tolmachev, and T. Chen, et al. 2016. "Spatial Ion Peak Compression and its Utility in Ion Mobility Spectrometry." Journal of the American Society for Mass Spectrometry 27, no. 6:1128-1135. PNNL-SA-114168. doi:10.1007/s13361-016-1371-7
  • Hamid A.M., V. Garimella, Y.M. Ibrahim, L. Deng, X. Zheng, I.K. Webb, and G.A. Anderson, et al. 2016. "Achieving high resolution ion mobility separations using traveling waves in compact multi-turn Structures for Lossless Ion Manipulations modules." Analytical Chemistry 88, no. 18:8949-8956. PNNL-SA-118269. doi:10.1021/acs.analchem.6b01914
  • Ibrahim Y.M., V. Garimella, S.A. Prost, R. Wojcik, R.V. Norheim, E.M. Baker, and I. Rusyn, et al. 2016. "Development of an Ion Mobility Spectrometry-Orbitrap Mass Spectrometer Platform." Analytical Chemistry 88, no. 24:12152-12160. PNNL-SA-123568. doi:10.1021/acs.analchem.6b03027
  • Kyle J.E., X. Zhang, K.K. Weitz, M.E. Monroe, Y.M. Ibrahim, R.J. Moore, and J. Cha, et al. 2016. "Uncovering Biologically Significant Lipid Isomers with Liquid Chromatography, Ion Mobility Spectrometry and Mass Spectrometry." Analyst 141, no. 5:1649-1659. PNNL-SA-111991. doi:10.1039/C5AN02062J
  • Webb I.K., V. Garimella, R.V. Norheim, E.S. Baker, Y.M. Ibrahim, and R.D. Smith. 2016. "A Structures for Lossless Ion Manipulations (SLIM) Module for Collision Induced Dissociation." Journal of the American Society for Mass Spectrometry 27, no. 7:1285-1288. PNNL-SA-115654. doi:10.1007/s13361-016-1397-x
  • Zhang X., M.V. Romm, X. Zheng, E.M. Zink, Y. Kim, K.E. Burnum-Johnson, and D.J. Orton, et al. 2016. "SPE-IMS-MS: An automated platform for sub-sixty second surveillance of endogenous metabolites and xenobiotics in bio?uids." Clinical Mass Spectrometry 2. PNNL-SA-117436. doi:10.1016/j.clinms.2016.11.002

2015

  • Baker E.S., K.E. Burnum-Johnson, Y.M. Ibrahim, D.J. Orton, M.E. Monroe, R.T. Kelly, and R.J. Moore, et al. 2015. "Enhancing Bottom-up and Top-down Proteomic Measurements with Ion Mobility Separations." Proteomics 15, no. 16:2766-2776. PNNL-SA-107785. doi:10.1002/pmic.201500048
  • Chen T., I.K. Webb, S.A. Prost, M.B. Harrer, R.V. Norheim, K. Tang, and Y.M. Ibrahim, et al. 2015. "Rectangular Ion Funnel: A New Ion Funnel Interface for Structures for Lossless Ion Manipulations." Analytical Chemistry 87, no. 1:716-722. PNNL-SA-105304. doi:10.1021/ac503564c
  • Chen T., T.L. Fillmore, S.A. Prost, R.J. Moore, Y.M. Ibrahim, and R.D. Smith. 2015. "Orthogonal Injection Ion Funnel Interface Providing Enhanced Performance for Selected Reaction Monitoring-Triple Quadruple Mass Spectrometry." Analytical Chemistry 87, no. 14:7326-7331. PNNL-SA-109430. doi:10.1021/acs.analchem.5b01482
  • Chen Y., F.E. Leach, N.K. Kaiser, X. Dang, Y.M. Ibrahim, R.V. Norheim, and G.A. Anderson, et al. 2015. "Improved ion optics for introduction of ions into a 9.4-T Fourier transform ion cyclotron resonance mass spectrometer." Journal of Mass Spectrometry 50, no. 1:280-284. PNNL-SA-104452. doi:10.1002/jms.3523
  • Garimella V., Y.M. Ibrahim, I.K. Webb, A.B. Ipsen, T. Chen, A.V. Tolmachev, and E.S. Baker, et al. 2015. "ION MANIPULATIONS IN STRUCTURES FOR LOSSLESS ION MANIPULATIONS (SLIM): COMPUTATIONAL EVALUATION OF A 90o TURN AND A SWITCH." Analyst 140, no. 20:6845-6852. PNNL-SA-107773. doi:10.1039/c5an00844a
  • Gunaratne K.D., V. Prabhakaran, Y.M. Ibrahim, R.V. Norheim, G.E. Johnson, and J. Laskin. 2015. "Design and Performance of a High-Flux Electrospray Ionization Source for Ion Soft-Landing." Analyst 140, no. 9:2957-2963. PNNL-SA-108077. doi:10.1039/C5AN00220F
  • Hamid A.M., Y.M. Ibrahim, V. Garimella, I.K. Webb, L. Deng, T. Chen, and G.A. Anderson, et al. 2015. "Characterization of Traveling Wave Ion Mobility Separations in Structures for Lossless Ion Manipulations." Analytical Chemistry 87, no. 22:11301-11308. PNNL-SA-111147. doi:10.1021/acs.analchem.5b02481
  • Ibrahim Y.M., E.M. Baker, W.F. Danielson, R.V. Norheim, D.C. Prior, G.A. Anderson, and M.E. Belov, et al. 2015. "Development of a New Ion Mobility Time-of-Flight Mass Spectrometer." International Journal of Mass Spectrometry 377. PNNL-SA-119651. doi:10.1016/j.ijms.2014.07.034
  • Ibrahim Y.M., E.S. Baker, W.F. Danielson, R.V. Norheim, D.C. Prior, G.A. Anderson, and M.E. Belov, et al. 2015. "Development of a New Ion Mobility (Quadrupole) Time-of-Flight Mass Spectrometer." International Journal of Mass Spectrometry 377. PNNL-SA-102133. doi:10.1016/j.ijms.2014.07.034
  • Zhang X., V. Garimella, S.A. Prost, I.K. Webb, T. Chen, K. Tang, and A.V. Tolmachev, et al. 2015. "Ion Trapping, Storage, and Ejection in Structures for Lossless Ion Manipulations." Analytical Chemistry 87, no. 12:6010-6016. PNNL-SA-107651. doi:10.1021/acs.analchem.5b00214
  • Zhang X., Y.M. Ibrahim, T. Chen, J.E. Kyle, R.V. Norheim, M.E. Monroe, and R.D. Smith, et al. 2015. "Enhancing Biological Analyses with Three Dimensional Field Asymmetric Ion Mobility, Low Field Drift Time Ion Mobility and Mass Spectrometry (µFAIMS/IMS-MS) Separations." Analyst 140. PNNL-SA-110080. doi:10.1039/c5an00897b

2014

  • Baker E.S., K.E. Burnum-Johnson, J.M. Jacobs, D.L. Diamond, R.N. Brown, Y.M. Ibrahim, and D.J. Orton, et al. 2014. "Advancing the High Throughput Identification of Liver Fibrosis Protein Signatures Using Multiplexed Ion Mobility Spectrometry." Molecular and Cellular Proteomics 13, no. 4:1119-1127. PNNL-SA-90826. doi:10.1074/mcp.M113.034595
  • Garimella V., Y.M. Ibrahim, I.K. Webb, A.V. Tolmachev, X. Zhang, S.A. Prost, and G.A. Anderson, et al. 2014. "Simulation of Electric Potentials and Ion Motion in Planar Electrode Structures for Lossless Ion Manipulations (SLIM)." Journal of the American Society for Mass Spectrometry 25, no. 11:1890-1896. PNNL-SA-103104. doi:10.1007/s13361-014-0976-y
  • Ibrahim Y.M., V. Garimella, A.V. Tolmachev, E.S. Baker, and R.D. Smith. 2014. "Improving Ion Mobility Measurement Sensitivity by Utilizing Helium in an Ion Funnel-Trap." Analytical Chemistry 86, no. 11:5295-5299. PNNL-SA-100190. doi:10.1021/ac404250z
  • Prost S.A., K.L. Crowell, E.S. Baker, Y.M. Ibrahim, B.H. Clowers, M.E. Monroe, and G.A. Anderson, et al. 2014. "Detecting and Removing Data Artifacts in Hadamard Transform Ion Mobility-Mass Spectrometry Measurements." Journal of the American Society for Mass Spectrometry 25, no. 12:2020-2027. PNNL-SA-100086. doi:10.1007/s13361-014-0895-y
  • Shvartsburg A.A., Y.M. Ibrahim, and R.D. Smith. 2014. "Differential Ion Mobility Separations in up to 100% Helium Using Microchips." Journal of the American Society for Mass Spectrometry 25, no. 3:480-489. PNNL-SA-97871. doi:10.1007/s13361-013-0797-4
  • Tolmachev A.V., I.K. Webb, Y.M. Ibrahim, V. Garimella, X. Zhang, G.A. Anderson, and R.D. Smith. 2014. "Characterization of Ion Dynamics in Structures for Lossless Ion Manipulations." Analytical Chemistry 86, no. 18:9162-9168. PNNL-SA-103154. doi:10.1021/ac502054p
  • Webb I.K., T. Chen, W.F. Danielson, Y.M. Ibrahim, K. Tang, G.A. Anderson, and R.D. Smith. 2014. "Implementation of Dipolar Resonant Excitation Collision Induced Dissociation with Ion Mobility/Time-of-Flight MS." Journal of the American Society for Mass Spectrometry 25, no. 4:563-571. PNNL-SA-98909. doi:10.1007/s13361-013-0815-6
  • Webb I.K., V. Garimella, A.V. Tolmachev, T. Chen, X. Zhang, J.T. Cox, and R.V. Norheim, et al. 2014. "Mobility-Resolved Ion Selection in Uniform Drift Field Ion Mobility Spectrometry/Mass Spectrometry; Dynamic Switching in Structures for Lossless Ion Manipulations." Analytical Chemistry 86, no. 19:9632-9637. PNNL-SA-103347. doi:10.1021/ac502139e
  • Webb I.K., V. Garimella, A.V. Tolmachev, T. Chen, X. Zhang, R.V. Norheim, and S.A. Prost, et al. 2014. "Experimental Evaluation and Optimization of Structures for Lossless Ion Manipulations for Ion Mobility Spectrometry with Time-of-Flight Mass Spectrometry." Analytical Chemistry 86, no. 18:9169-9176. PNNL-SA-103224. doi:10.1021/ac502055e

2013

  • Crowell K.L., E.S. Baker, S.H. Payne, Y.M. Ibrahim, M.E. Monroe, G.W. Slysz, and B.L. Lamarche, et al. 2013. "Increasing Confidence of LC-MS Identifications by Utilizing Ion Mobility Spectrometry." International Journal of Mass Spectrometry 354-355. PNNL-SA-95461. doi:10.1016/j.ijms.2013.06.028
  • Crowell K.L., G.W. Slysz, E.S. Baker, B.L. Lamarche, M.E. Monroe, Y.M. Ibrahim, and S.H. Payne, et al. 2013. "LC-IMS-MS Feature Finder: Detecting Multidimensional Liquid Chromatography, Ion Mobility, and Mass Spectrometry Features in Complex Datasets." Bioinformatics 29, no. 21:2804-2805. PNNL-SA-95214. doi:10.1093/bioinformatics/btt465
  • Merkley E.D., E.S. Baker, K.L. Crowell, D.J. Orton, T. Taverner, C. Ansong, and Y.M. Ibrahim, et al. 2013. "Mixed-Isotope Labeling with LC-IMS-MS for Characterization of Protein-Protein Interactions by Chemical Cross-Linking." Journal of the American Society for Mass Spectrometry 24, no. 3:444-449. PNNL-SA-88464. doi:10.1007/s13361-012-0565-x

2012

  • Baker E.S., T. Liu, V.A. Petyuk, K.E. Burnum-Johnson, Y.M. Ibrahim, G.A. Anderson, and R.D. Smith. 2012. "Mass Spectrometry for Translational Proteomics: Progress and Clinical Implications." Genome Medicine 4. PNNL-SA-86783. doi:10.1186/gm364
  • Burnum K.E., Y. Hirota, E.S. Baker, M. Yoshie, Y.M. Ibrahim, M.E. Monroe, and G.A. Anderson, et al. 2012. "Uterine deletion of Trp53 compromises antioxidant responses in mouse decidua." Endocrinology 153, no. 9:4568-4579. PNNL-SA-87211. doi:10.1210/en.2012-1335

2011

  • Belov M.E., R.T. Kurulugama, D. Lopez-Ferrer, Y.M. Ibrahim, and E.S. Baker. 2011. "New Developments in LC-MS and Other Hyphenated Techniques." In Sample Preparation in Biological Mass Spectrometry, edited by AR Ivanov & AV Lazarev. 981-1030. New York, New York:Springer. PNNL-SA-74555.
  • Belov M.E., S. Prasad, D.C. Prior, W.F. Danielson, K.K. Weitz, Y.M. Ibrahim, and R.D. Smith. 2011. "Pulsed Multiple Reaction Monitoring Approach to Enhancing Sensitivity of a Tandem Quadrupole Mass Spectrometer." Analytical Chemistry 83, no. 6:2162-2171. PNNL-SA-74498. doi:10.1021/ac103006b
  • Ibrahim Y.M., A.A. Shvartsburg, R.D. Smith, and M.E. Belov. 2011. "Ultrasensitive Identification of Localization Variants of Modified Peptides Using Ion Mobility Spectrometry." Analytical Chemistry 83, no. 14:5617 - 5623. PNNL-SA-78723. doi:10.1021/ac200719n

2010

  • Baker E.S., E.A. Livesay, D.J. Orton, R.J. Moore, W.F. Danielson, D.C. Prior, and Y.M. Ibrahim, et al. 2010. "An LC-IMS-MS Platform Providing Increased Dynamic Range for High-Throughput Proteomic Studies." Journal of Proteome Research 9, no. 2:997-1006. PNNL-SA-67461. doi:10.1021/pr900888b
  • Belov M.E., Y.M. Ibrahim, and R.D. Smith. 2010. "Ion Accumulation Approaches for Increasing Sensitivity and Dynamic Range in the Analysis of Complex Samples." In Practical Aspects of Trapped Ion Mass Spectrometry: Theory and Instrumentation, edited by RE March and JFJ Todd. 401-432. Boca Raton, Florida:CRC Press. PNNL-SA-60908.
  • Ibrahim Y.M., D.C. Prior, E.S. Baker, R.D. Smith, and M.E. Belov. 2010. "Characterization of an Ion Mobility-Multiplexed Collision Induced Dissociation- Tandem Time-of-Flight Mass Spectrometry Approach." International Journal of Mass Spectrometry 293, no. 1-3:34-44. PNNL-SA-68112.
  • Shah A.R., K. Agarwal, E.S. Baker, M. Singhal, A.M. Mayampurath, Y.M. Ibrahim, and L.J. Kangas, et al. 2010. "Machine learning based prediction for peptide drift times in ion mobility spectrometry." Bioinformatics 26, no. 13:1601-1607. PNWD-SA-8802. doi:10.1093/bioinformatics/btq245

2008

  • Clowers B.H., M.E. Belov, D.C. Prior, W.F. Danielson, Y.M. Ibrahim, and R.D. Smith. 2008. "Pseudorandom Sequence Modifications for Ion Mobility Orthogonal Time-of-Flight Mass Spectrometry." Analytical Chemistry 80, no. 7:2464-2473. PNWD-SA-7989. doi:10.1021/ac7022712
  • Clowers B.H., Y.M. Ibrahim, D.C. Prior, W.F. Danielson, M.E. Belov, and R.D. Smith. 2008. "Enhanced Ion Utilization Efficiency Using an Electrodynamic Ion Funnel Trap as an Injection Mechanism for Ion Mobility Spectrometry." Analytical Chemistry 80, no. 3:612-623. PNWD-SA-7885. doi:10.1021/ac701648p
  • Ibrahim Y.M., M.E. Belov, A.V. Liyu, and R.D. Smith. 2008. "Automated Gain Control Ion Funnel Trap for Orthogonal Time-of-Flight Mass Spectrometry." Analytical Chemistry 80, no. 14:5367-5376. PNNL-SA-59266. doi:10.1021/ac8003488

2007

  • Ibrahim Y.M., M.E. Belov, A.V. Tolmachev, D.C. Prior, and R.D. Smith. 2007. "Ion Funnel Trap Interface for Orthogonal Time-of-Flight Mass Spectrometry." Analytical Chemistry 79, no. 20:7845-7852. PNNL-SA-54591. doi:10.1021/ac071091m

2006

  • Ibrahim Y.M., K. Tang, A.V. Tolmachev, A.A. Shvartsburg, and R.D. Smith. 2006. "Improving Mass Spectrometer Sensitivity Using a High-Pressure Electrodynamic Ion Funnel Interface." Journal of the American Society for Mass Spectrometry 17, no. 9:1299-1305. PNNL-SA-49272. doi:10.1016/j.jasms.2006.06.005