Natalie Gruenke
Natalie L. Gruenke, Ph.D.
Scientist
Polymer Science & Materials Chemistry
Menlo Park

Dr. Gruenke’s expertise lies in the areas of spectroscopy, materials chemistry, optics, and nanomaterials. A physical chemist by training, her research experience spans the areas of Raman and infrared spectroscopies, electrochemical characterization, and plasmonic structure-property relationships. She has designed and built optical systems for a number of ultrafast spectroscopic techniques and has extensive experience with laser systems and a wide range of analytical chemistry methods.

As a chemist, Dr. Gruenke has expertise characterizing materials using Raman spectroscopy and microscopy, UV-visible absorption spectroscopy, Fourier-transform infrared spectroscopy (FTIR), transient absorption (TA) spectroscopy in both the visible and IR, transmission electron microscopy (TEM), cyclic voltammetry (CV), and differential pulse voltammetry (DPV). Additionally, she has synthesized a range of plasmonic nanomaterials, selectively making gold and silver nanoparticles of a variety of sizes and shapes for research towards the improvement of plasmonic devices.

Before joining Exponent, Dr. Gruenke was a postdoctoral fellow in the Division of Molecular Biophysics & Integrated Biology at Lawrence Berkeley National Laboratory where she worked developing and applying a novel two-dimensional electronic-vibrational ultrafast spectroscopic technique to study energy transfer in photosynthetic systems and nanomaterials. Before her postdoctoral work, she was a National Science Foundation Graduate Research Fellow in the Department of Chemistry at Northwestern University, where she developed a new experimental combination of time-resolved stimulated Raman spectroscopy with the single-molecule sensitivity of surface-enhanced Raman spectroscopy for the study of plasmonic materials in photovoltaics. Dr. Gruenke also has research experience characterizing electrochemical and photophysical properties of fullerene-based semiconductors for organic photovoltaic (OPV) applications. 

CREDENTIALS & PROFESSIONAL HONORS

  • Ph.D., Chemistry, Northwestern University, 2015
  • B.S., Chemistry and Physics, Furman University, 2010
  • Postdoctoral Fellow, Molecular Biophysics & Integrated Biology, Lawrence Berkeley National Lab, 2017

    Graduate Teaching Certificate, Northwestern University, 2013

    National Science Foundation Graduate Research Fellow, 2012-2015

    National Defense Science and Engineering Graduate Fellowship (declined for NSF award), 2012

    Phi Lambda Upsilon Chemistry Honors Society, Northwestern Chapter, 2012

    Northwestern Dole Chemistry Fellow, 2010

    American Chemical Society Undergraduate Award in Analytical Chemistry, 2010

    Phi Beta Kappa Honors Society, 2010

    Phi Eta Sigma Physics Honors Society, 2007

Publications

LE Buchanan, MO McAnally, NL Gruenke, GC Schatz, RP Van Duyne. Studying Stimulated Raman Activity in Surface-Enhanced Femtosecond Stimulated Raman Spectroscopy by Varying the Excitation Wavelength. The Journal of Physical Chemistry Letters 2017 8 (14), 3328-3333.

NL Gruenke, MO McAnally, GC Schatz, RP Van Duyne. Balancing the effects of scattering and enhancement in surface-enhanced femtosecond stimulated Raman studies. Journal of Physical Chemistry C, 2016, 120 (51), 29449.

LE Buchanan, NL Gruenke, MO McAnally, B Negru, HE Mayhew, VA Apkarian, GC Schatz, RP Van Duyne. Surface-enhanced femtosecond stimulated Raman spectroscopy at 1 MHz repetition rates. The Journal of Physical Chemistry Letters 2016 7 (22), 4629-4634.

NHC Lewis, NL Gruenke, TAA Oliver, M Ballottari, R Bassi, GR Fleming. Observation of Electronic Excitation Transfer through Light Harvesting Complex II Using Two-dimensional Electronic-vibrational Spectroscopy. The Journal of Physical Chemistry Letters, 2016, 7 (20), 4197.

EA Pozzi, NL Gruenke, N Chiang, DV Zhdanov, N Jiang, T Seideman, GC Schatz, MC Hersam, RP Van Duyne. Operational Regimes in Picosecond and Femtosecond Pulse-Excited Ultrahigh Vacuum SERS. The Journal of Physical Chemistry Letters, 2016, 7 (15), 2971.

NL Gruenke, MF Cardinal, M. McAnally, RR Frontiera, GC Schatz, RP Van Duyne. Ultrafast and nonlinear surface enhanced Raman spectroscopy. Chemical Society Reviews, 2016, 45 (8), 2263.

RR Frontiera, NL Gruenke, RP Van Duyne. Fano-like resonances arising from long-lived molecule-plasmon interactions in colloidal nanoantennas. Nano Letters, 2012, 12 (11), 5989.

RR Frontiera, AI Henry, NL Gruenke, RP Van Duyne. Surface-enhanced femtosecond stimulated Raman spectroscopy. The Journal of Physical Chemistry Letters, 2016, 2 (10), 1199.

Presentations


NL Gruenke, MO McAnally, LE Buchanan, and RP Van Duyne. Advances in surface-enhanced femtosecond stimulated Raman spectroscopy. Oral and poster presentations. Vibrational Spectroscopy Gordon Research Seminar, Biddeford, Maine, 2014.

NL Gruenke, MO McAnally, LE Buchanan, and RP Van Duyne. Advances in surface-enhanced femtosecond stimulated Raman spectroscopy. Poster presentation, Vibrational Spectroscopy Gordon Research Conference, Biddeford, Maine, 2014.

NL Gruenke, RR Frontiera, and RP Van Duyne. Towards excited-state surface-enhanced femtosecond stimulated Raman spectroscopy. Poster presentation, XVIth International Conference on Time-Resolved Vibrational Spectroscopy, Beppu, Japan, 2013.

NL Gruenke, RR Frontiera, and RP Van Duyne. Towards excited-state surface-enhanced femtosecond stimulated Raman spectroscopy. Poster presentation, Vibrational Spectroscopy Gordon Research Conference, Biddeford, Maine, 2012.

NL Gruenke, A Iwan, H Janeczek, F Oswald, S Sadki, and P Rannou. Electrochemical and Photophysical Characterizations of Thiazolo[5,4-d]-Thiazole and Fullerene-Based Organic Semiconductors for Solar Cells. Poster presentation, Southeastern Regional American Chemical Society meeting, San Juan, Puerto Rico, 2009.

NL Gruenke, CN Reese, JJ Banisaukas III, and LB Knight, Jr..Thermal Dissociation of Water to Produce Hydrogen Gas. Poster presentation, Southeastern Regional Meeting of the American Chemical Society, Nashville, Tennessee, 2008.

Professional Affiliations

American Chemical Society - ACS member since 2008

CREDENTIALS & PROFESSIONAL HONORS

  • Ph.D., Chemistry, Northwestern University, 2015
  • B.S., Chemistry and Physics, Furman University, 2010
  • Postdoctoral Fellow, Molecular Biophysics & Integrated Biology, Lawrence Berkeley National Lab, 2017

    Graduate Teaching Certificate, Northwestern University, 2013

    National Science Foundation Graduate Research Fellow, 2012-2015

    National Defense Science and Engineering Graduate Fellowship (declined for NSF award), 2012

    Phi Lambda Upsilon Chemistry Honors Society, Northwestern Chapter, 2012

    Northwestern Dole Chemistry Fellow, 2010

    American Chemical Society Undergraduate Award in Analytical Chemistry, 2010

    Phi Beta Kappa Honors Society, 2010

    Phi Eta Sigma Physics Honors Society, 2007