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Claudio Mendoza
Residence Venezuela
Nationality Venezuelan
Awards Carey Foster Research Prize (1978), Lorenzo Mendoza Fleury Science Prize (1989), Premio Fundaci�ón Juan Alberto Olivares (F��ísica, 2013)
Scientific career
Fields Computational physics
Institutions Venezuelan Institute for Scientific Research

Claudio Mendoza PhD (born August 16, 1951) is a computational physicist and a Senior Research Fellow at the Physics Center of the Venezuelan Institute for Scientific Research (IVIC), Caracas, Venezuela. For more than 30 years he has been involved in high-performance scientific computing related to problems in atomic astrophysics and surface astrochemistry, in the design and implementation of scientific databases (data science) and in the mathematical modeling of biochemical reactions.



Dr. Mendoza began his schooling at Escuela Comunitaria, San Antonio de Los Altos, Venezuela, and Colegio Santiago de León de Caracas (1963-1965), Caracas, Venezuela. He later obtained his Ordinary Level and Advanced Level General Certificate of Education examinations from William Ellis School (1965-1970), Highgate, London, UK, and a BSc (1970-1973) and PhD (1975-1980) from University College London, London, UK.

Professional Work[edit]

He began his professional career as an Associate Professor at the Universidad Nacional Experimental del Táchira, San Cristóbal, Venezuela (1974-1975), and after obtaining his PhD, he worked in the Department of Physics and Astronomy of University College London as a Science and Engineering Research Council Research Assistant (1979-1982). During 1982-1985 he joined the faculty of the Physics Department of Universidad Simón Bolívar, Caracas, and as from 1983 he worked for ten years as a Research Consultant at the IBM Venezuela Scientific Center. In 1994 he entered the Physics Center of the Venezuelan Institute for Scientific Research where he has worked ever since, becoming a Senior Research Fellow in 2000.

From 2001-2004, he was Junior Research Fellow at Christ Church (a college of the University of Oxford) and a Research Fellow of the Welcome Trust at the Center for Mathematical Biology in the University of Oxford. He was Assistant Professor of Informatics and Associate Director of the Biocomplexity Institute at Indiana University, Bloomington between 2004-2008. Currently he is an Associate Professor of Molecular & Integrative Physiology, a U-M Brehm Investigator in the Brehm Center for Diabetes Research, and a Research Associate Professor of Computational Medicine & Bioinformatics at the University of Michigan.

Dr. Schnell is member of the Board of Directors[1] of the Society for Mathematical Biology. He serves on the Editorial Boards of Mathematical Biosciences,[2] Computational Biology & Chemistry,[3] Computational and Mathematical Methods in Medicine [4] and IET Systems Biology.[5]


Dr. Schnell systematically investigated for the first time how the rate laws describing intracellular reactions vary as a function of the physico-chemical conditions of the intracellular environments. His work has focused to resolve the ambiguities in the quantitative analysis and modeling of reactions inside cells. He has also focused his research attention on deriving mathematical expressions to estimate enzyme kinetics parameters under different reaction conditions. He has systematically obtained equations to estimate kinetic parameters for the family of Michaelis-Menten reaction mechanisms and determined their region of validity for the initial enzyme and substrate concentrations. Dr. Schnell derived a generic expression, known nowadays as the Schnell-Mendoza equation, to determine the Michaelis-Menten constant and maximum velocity for enzyme catalyzed reactions following Michaelis-Menten kinetics using time course data.

In addition, Dr. Schnell has also extensive experience in developing multiscale models of developmental processes and cancer. His work has been highlighted in popular science magazines, such as American Scientist[6] (USA), Investigación y Ciencia[7] (Spain and Latin-America), Spektrum der Wissenschaft (Germany).

Teaching and Outreach[edit]

Dr. Schnell received the Faculty Award for Teaching Excellence from the School of Informatics at Indiana University in 2006. As a member the Hispanic community, Dr. Schnell is actively promoting involvement of Hispanic and other minorities in science. He is life member[8] of the Society for the Advancement of Hispanics/Chicanos and Native Americans in Science.


He has published over 80 articles in academic journals, edited several special issues and a book.[9] His most highly cited publications include:

  • T. E. Turner, S. Schnell and K. Burrage (2004). Stochastic approaches for modelling in vivo reactions. Computational Biology and Chemistry 28, 165-178. doi:10.1016/j.compbiolchem.2004.05.001
  • S. Schnell and T. E. Turner (2004). Reaction kinetics in intracellular environments with macromolecular crowding: simulations and rate laws. Progress in Biophysics and Molecular Biology 85, 235-260. doi:10.1016/j.pbiomolbio.2004.01.012
  • E. J. Crampin, S. Schnell and P. McSharry (2004). Mathematical and computational techniques to deduce complex biochemical reaction mechanisms. Progress in Biophysics and Molecular Biology 86, 77-112. doi:10.1016/j.pbiomolbio.2004.04.002
  • S. Schnell and C. Mendoza (1997). A closed-form solution for time-dependent enzyme kinetic. Journal of theoretical Biology 187, 207-212. doi:10.1006/jtbi.1997.0425
  • B. Ribba, T. Collin and S. Schnell (2006). A multiscale mathematical model of cancer, and its use in analyzing irradiation therapies. Theoretical Biology and Medical Modelling 3, 7. doi:10.1186/1742-4682-3-7
  • S. Schnell and P. K. Maini (2003). A century of enzyme kinetics: Reliability of the KM and vmax estimates. Comments on Theoretical Biology 8, 169-187. doi:10.1080/08948550390206768
  • S. Schnell and P. K. Maini (2000). Enzyme kinetics at high enzyme concentration. Bulletin of Mathematical Biology 62, 483-499. doi:10.1006/bulm.1999.0163
  • S. Schnell and C. Mendoza (1997). Enzymological considerations for a theoretical description of the Quantitative Competitive Polymerase Chain Reaction (QC-PCR). Journal of theoretical Biology 184, 433-440. doi:10.1006/jtbi.1996.0283
  • S. Schnell and C. Mendoza (1997). Theoretical description for polymerase chain reaction. Journal of theoretical Biology 188, 313-318. doi:10.1006/jtbi.1997.0473
  • S. Schnell and P. K. Maini (2000). Clock and induction model for somitogenesis. Developmental Dynamics 217, 415-420. doi:10.1002/(SICI)1097-0177(200004)217:4<415::AID-DVDY8>3.0.CO;2-3
  • R. Grima and S. Schnell (2006). A systematic investigation of the rate laws valid in intracellular environments. Biophysical Chemistry 124, 1-10. doi:10.1016/j.bpc.2006.04.019


External links[edit]

DEFAULTSORT:Schnell, Santiago Category:Theoretical biologists Category:Venezuelan biologists Category:Simón Bolívar University alumni Category:Living people Category:University of Michigan faculty