Curriculum Vitae for:

David R Day

David R. Day is the CTO and a co-founder of SciAps INC, where he led the development of the first fully self-contained handheld instrumentation for laser-induced laser spectroscopy (LIBS) with subsystems that include high resolution spectrometers, timegated laser rastering, argon purging, internal video, and full onboard data analysis. Dr. Day also served as the technical lead in three prior instrumentation startups including Micromet Instruments (cofounder, sold to Netzsch), Auburn International (sold to Oxford Instruments), and Polychromix (sold to Thermo Fisher). While at Polychromix, he managed the engineering team that developed the NIR spectrometers NASA used (LCROSS mission) to discover water on  the Moon’s south pole in 2009. He has accumulated extensive experience in most aspects of instrumentation development including spectroscopy (FTIR, NIR, RAMAN, LIBS, NMR, XPS, SIMS), electronics, mechanics, optics, software, algorithms, and chemometrics. He received a Ph.D. in Polymer Science from Case Western Reserve University and held a postdoctoral position at MIT in the departments of Electrical Engineering and Material Science. He has more than 40 peer-reviewed scientific publications and has been issued 30 patents.

Publications, papers & Reports:

  1. “Polymerisation in Monomolekularen Schichten an der Grenzflache Wasser/Gas”, D. Naegele, H. Ringsdorf, B. Tieke, G. Wegner, D. Day and J.B. Lando, Chemiker-Zeitung, No. 10, 426(1976)
  2. “Polymerization of Mono- and Multilayer Forming Diacetylenes”, B. Tieke, H.J. Graf, G. Wegner, D. Naegele, H. Ringsdorf, A. Banerjie, D. Day and J.B. Lando, Colloid and Polymer Science, 225, 521(1977)
  3. “Electron Diffraction Studies of Multilayers of Vinyl Stearate”, D. Day and J.B. Lando, Journal of Polymer Science (Chem.),16, 1431(1978)
  4. “Structural Relationships in the Solid-State Synthesis of Poly-(bis-Phenyl Gluterate Diacetylene)”, D. Day and J.B. Lando, Journal of Polymer Science (Phys.), 16, 1009(1978)
  5. “Polymerization of Diacetylene Carbonic Acid Monolayers at the Gas-Water Interface”, D. Day and H. Ringsdorf, Journal of Polymer Science (Lett.),16, 205(1978).
  6. “Molecular Mechanisms in the Formation of Polydiacetylenes in the Solid State”, J.B. Lando, D. Day and V. Enkelmann, Journal of Polymer Science (Polym. Symp.), 65, 73(1978)
  7. “Monolayer Polymerization of Diacetylene Monocarbonic Acids at the Gas-Water Interface”, D.Day, H.Hub, H.Ringsdorf and W.Sioll, Ber. Bunsenges. Phys. Chem., 82,878(1978)
  8. “The Monolayer Polymerization of 10,12-Nonacosadiynoic Acid Studied by a Specroscopic Technique”, D.Day and H. Ringsdorf, Makromolekular Chemie, 180, 1059(1979)
  9. “Structure of Mesomorphic Polymer Phases”, H. Finkelmann and D. Day, Makromolekular Chemie, 180, 2269(1979)
  10. “Polyreactions in Ordered Monolayers”,D. Day, H. Hub, and H. Ringsdorf, Isr. J. Chem., 18, 325(1979).
  11. “Polymerization and Characterization of Diacetylene Monolayers Formed at the Gas-Water Interface”, D. Day, J.B. Lando, and H. Ringsdorf, Ordering in Two Dimensions, Ed. by S.K. Sinha, North Holland Inc., 455(1980)
  12. “Morphology of Crystalline Diacetylene Monolayers Polymerized at the Gas-Water Interface”, D. Day and J.B. Lando, Macromolecules, 13, 1478(1980)
  13. “Structure Determination of a Polydiacetylene Monolayer”, D.Day and J.B. Lando, Macromolecules, 13, 1483(1980)
  14. “Conduction in Polydiacetylene Bilayers”, D. Day and J.B. Lando, Journal of Applied Polymer Science, 26, 1605 (1981)
  15. “Characterization of Monolayer Fibers”, D. Day and J.B. Lando, Journal of Polymer Science (Phys.), 19, 165(1981)
  16. “Synthesis and Characterization of Poly(1,11 Dodecoidiyne) and Related Polymers”, D. Day and J.B. Lando, Journal of Polymer Science (Lett.), 19, 227(1981)
  17. “Origin and Prevention of High Contact Resistance in Multilevel Metal-Polyimide Circuits”, D.R. Day and S.D. Senturia, J. Elect. Mat., 11, 441(1982)
  18. “Electrical Properties of Ion-Implanted Poly(p-Phenylene Sulfide)”, H. Mazurek, D.R. Day, E.W. Maby, J.S. Abel, S.D. Senturia, G. Dresselhaus, and M.S. Dresselhaus, J. Polymer Science (Phys.), 21, 537(1983)
  19. “Electrical Properties of Ion-Implanted Poly (p-Phenlyene Sulfide)”, J.S. Abel, H.Mazurek, D.Day, E.W. Maby, S.D. Senturia, G.Dresselhaus, and M.S. Dresselhaus, Metastable Materials Formation By Ion Implantation, ed. S.T. Picraux and W.J. Choyke, North Holland, Amsterdam, 7, 173(1982)
  20. “Microdielectrometry”, N.F. Sheppard, D.Day, H.L. Lee, and S.D. Senturia, Sensors and Actuators, 2, 263(1982)
  21. “Evaluation of a Process for Achieving Low Between Metal Contact Resistance in Plasma Etched Polyimide Vias”, P.K. Smith, T.O. Herndon, R.L. Burke, D.R. Day, and S.D. Senturia, J. Electrochem. Soc, 13, 67(1982)
  22. “In-Situ Measurements of the Properties of Curing Systems with Microdielectrometry”, S.D. Senturia, N.F. Sheppard, H.L. Lee, and D.R. Day, J. of Adhesion, 15, 69(1982)
  23. “Fabrication of Conductive Polyimide Gate Transistors”, D.R.Day, Polymers In Electronics, Am. Chem. Soc. Press, Ed. by T. Davidson, ACS Symp. Ser., 22, 423(1983)
  24. “Planarization of Polyimide Films”, D.R. Day, D. Ridley, J.Mario, and S.D. Senturia, Polyimides, ed. by K.Mittal, Plenum Press, N.Y., V.2, 767(1984)
  25. “In-Situ Monitoring of Polyamic Acid Imidization”, D.R. Day, S.D. Senturia, Polyimides, ed K.Mittal, Plenum Press, N.Y., V.1, 249(1984)
  26. “Moisture Diffusion in Polyimide Films in Integrated Circuits”, D.D.Denton, D.R. Day, D.F. Priore, S.D. Senturia, E.S. Anolick, and D. Scheider, J.Electron. Mat., 14, 119(1985)
  27. “Sodium Transport in Polyimide-SiO2 Systems”, H.J. Neuhaus, D.R. Day, & S.D. Senturia, J. Electronic Mat., 14, 379(1985)
  28. “The Role of Blocking Layer Capacitance at Blocking Electrodes in the Interpretation of Dielectric Cure Data in Adhesives”, D.R. Day, T.J. Lewis, H.L. Lee, and S.D. Senturia, J. of Adhesion, v18, 73(1985)
  29. “Microdielectric Sensors for Cure Control and Materials Evaluation”, D.R. Day, Quantitative Nondestructive Evaluation, Plenum Press, NY, v5B, 1037(1986)
  30. “Measurement and Application of Dielectric Properties”, M.L. Bromberg, D.R. Day, and K.R. Snable, IEEE Electrical Insulation, v2, n3, 18(1986)
  31. “Effects of Stoichiometric Mixing Ratio on Epoxy Cure- A Dielectric Analysis”, D.R. Day, Poly. Eng. Sci., v26, n5, 362(1986)
  32. “Effects of Stoichiometric Mixing Ratio on Epoxy Cure- A Dielectric Analysis”, D.R. Day, J. of Reinforced Plastics and Composites, v7, n5, 475(1988) [selected for re-publication, see previous publication] p;P7
  33. “Electrical Conduction in Polyimide Between 20 & 350 C”, F.W.Smith, Z.Feit, H.J. Neuhaus, D.R.Day, T.J. Lewis, and S.D. Senturia, J. Electron. Mat., v16, n1, 93(1987)
  34. “Cure Control- Strategies for Using Dielectric Sensors”, D.R. Day, Quantitative Nondestructive Evaluation, Plenum Press, NY, v7B, 1573(1988)
  35. “Dynmanic Cure and Diffusion Monitoring in Thin Coatings”, D.R.Day and D.D. Shepard, J. of Coatings Technology, v60, n760, 57(1988)
  36. “Moisture Monitoring at the Polyimide-Silicon Dioxide Interface Using Microdielectric Sensors”, D.R.Day, Polyimides: Materials, Chemistry, and Characterization, Ed. C.Feger .., Elsevier Science Pub., Amsterdam, 537(1989)
  37. “Microdielectrometry”, D.R.Day, chapter in Characterization Techniques for Thin Polymer Films, Ho-Ming Tong editor, Wiley & Sons, pg.1 (1990)
  38. “Analysis and Control of the Resin Transfer Molding Process using In-Mold Sensors”, D.Melotik, M.Czaplicki, T.Whalen, & D.R.Day, Proc. of the Eighth International Conference on Composite Materials, Ed. – Tsai & Springer, Covina CA, SAMPE, p. 15-F, (1991)
  39. “Effect of Advancement on Epoxy Prepreg Processing- A Dielectric Analysis”, D.R.Day and D.D.Shepard, Polymer Composites, v12, n2, April (1991)
  40. “A Microdielectric Analysis of Moisture Diffusion in Thin Epoxy/Amine Films of Varying Cure State and Mix Ratio”, D.R.Day, D.D.Shepard, and K.J.Craven, Polymer Engineering and Science, Vol. 32, No.8, p.524, April (1992)
  41. “Cure Characterization of Thick SMC Parts Using Dielectric and Finite Difference Analysis”, D.R.Day, J. of Reinforced Plastics and Composites, Vol. 13, No. 10, p.918 (1994)
  42. “True Reading of Catalyst Mass Flow – VAALER AWARD”, D.R.Day, Chemical Processing, Vol. 56, No.12, pg.36(1993)
  43. “Novel Real Time Catalyst Mass Flow Measurement System”, D.R.Day & S.A.Marino, ANTEC 95, Vol. 2, pg.2110 (1995)
  44. “New Advances in Triboelectric System Technology”, J. Merk, K.Preiss, D.R.Day, R. Tacelli, & R. Dechene, Powder & Bulk Conf. Proc., Chicago, pg.479, (1995)
  45. “Predicting Baghouse Failures”, D.R.Day, J.Merk, J.Yang, Powder & Bulk Conf. Proc., (1996)
  46. “Process Control for Two-Phase Mixtures”, D.R.Day, C.R.Reiner, M.Pepe, Hydrocarbon Asia, AP En. Bus. Pub. Ltd, 10 (1996)
  47. “Multi-channel gain equalizer MEMS surface topology effects on chromatic dispersion: A comparison of scalar diffraction modeling to actual product”, (Invited paper), D.R.Day, Photonics North 2004, Ottawa CA, pg 609 (2004)
  48. “MEMS DCE/Blocker filter shape and chromatic dispersion: A comparison of modeling results and device measurements”, D.R.Day, European Conference on Optical Communications, Stockholm (2004)
  49. “Diffractive-MEMS Impelementation of a Hadamard near-Infrared Spectrometer”, D.R.Day, M.A.Butler, M.C.Smith, A.Mcallister, E.R.Deutsch, K.Zafiriou and S.D. Senturia, Proc. 13th Intl. Conference on Solid State Sensors, Actuators, and Microsystems (Transducers 2005), Seoul, Korea, June 5-9, 2005, pp. 1246-1249
  50. “Mixture Analysis Mixture Analysis in Hand-held NIR Instrumentation”, D.R.Day, M.A.Butler, F.Haibach, and S.Schreyer, Proc. of the Int. Conf. on Near Infrared Spectroscopy, Bangkok, Thailand, Nov. 9-13, 2009 pg 42
  51. “NIR Spectrometers on the Moon”, D.R.Day, NIR News, Vol 21, No 1 (Jan 2010)
  52. “Applicationof Handheld Laser-Induced Breakdown Spectroscopy (LIBS) to Geochemical Analysis”, B.Connors, A. Somers, and D. Day, Applied Spectroscopy, Vol.70-5(2016)
  53. “Handheld LIBS”, chapter in “Portable Spectroscopy”, D.Day, Wiley& Sons, Vol 1, Chapt.13 (in publication 2020)
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