Search Results - "Petersen, Poul B"

Extending the Capabilities of Heterodyne-Detected Sum-Frequency Generation Spectroscopy: Probing Any Interface in Any Polarization Combination by Vanselous, Heather, Petersen, Poul B

“…Vibrational sum-frequency generation spectroscopy (SFG) is a powerful tool for studying noncentrosymmetric environments, particularly interfaces. Conventional…”
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On the nature of ions at the liquid water surface by Petersen, Poul B, Saykally, Richard J

“…A qualitatively new understanding of the nature of ions at the liquid water surface is emerging. Traditionally, the characterization of liquid surfaces has…”
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Structure-Function Relations and Rigidity Percolation in the Shear Properties of Articular Cartilage by Silverberg, Jesse L., Barrett, Aliyah R., Das, Moumita, Petersen, Poul B., Bonassar, Lawrence J., Cohen, Itai

“…Among mammalian soft tissues, articular cartilage is particularly interesting because it can endure a lifetime of daily mechanical loading despite having…”
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DNA’s Chiral Spine of Hydration by McDermott, M. Luke, Vanselous, Heather, Corcelli, Steven A, Petersen, Poul B

“…The iconic helical structure of DNA is stabilized by the solvation environment, where a change in the hydration state can lead to dramatic changes to the DNA…”
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Electrolytes induce long-range orientational order and free energy changes in the H-bond network of bulk water by Chen, Yixing, Okur, Halil I, Gomopoulos, Nikolaos, Macias-Romero, Carlos, Cremer, Paul S, Petersen, Poul B, Tocci, Gabriele, Wilkins, David M, Liang, Chungwen, Ceriotti, Michele, Roke, Sylvie

“…Electrolytes interact with water in many ways: changing dipole orientation, inducing charge transfer, and distorting the hydrogen-bond network in the bulk and…”
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Robust Self-Referencing Method for Chiral Sum Frequency Generation Spectroscopy by McDermott, M. Luke, Petersen, Poul B

“…Chiral sum frequency generation spectroscopy (SFG) is of great interest for studying biological systems, among others. Whereas the chiral response in circular…”
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Strong Intermolecular Vibrational Coupling through Cyclic Hydrogen-Bonded Structures Revealed by Ultrafast Continuum Mid-IR Spectroscopy by Stingel, Ashley M, Calabrese, Carmella, Petersen, Poul B

“…Cyclic hydrogen-bonded structures are common motifs in biological systems, providing structural stability and mediating proton transfer for redox reactions…”
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Adsorption of Ions to the Surface of Dilute Electrolyte Solutions:  The Jones−Ray Effect Revisited by Petersen, Poul B, Saykally, Richard J

“…The controversial observation of a minimum in the surface tension of dilute aqueous electrolyte solutions by Jones and Ray in the 1930s is confirmed by new…”
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Observation of a Zundel-like transition state during proton transfer in aqueous hydroxide solutions by Roberts, Sean T, Petersen, Poul B, Ramasesha, Krupa, Tokmakoff, Andrei, Ufimtsev, Ivan S, Martinez, Todd J

“…It is generally accepted that the anomalous diffusion of the aqueous hydroxide ion results from its ability to accept a proton from a neighboring water…”
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Oriented chiral water wires in artificial transmembrane channels by Kocsis, Istvan, Sorci, Mirco, Vanselous, Heather, Murail, Samuel, Sanders, Stephanie E, Licsandru, Erol, Legrand, Yves-Marie, van der Lee, Arie, Baaden, Marc, Petersen, Poul B, Belfort, Georges, Barboiu, Mihail

“…Aquaporins (AQPs) feature highly selective water transport through cell membranes, where the dipolar orientation of structured water wires spanning the AQP…”
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Enhanced Concentration of Polarizable Anions at the Liquid Water Surface:  SHG Spectroscopy and MD Simulations of Sodium Thiocyanide by Petersen, Poul B, Saykally, Richard J, Mucha, Martin, Jungwirth, Pavel

“…Contrasting current textbook descriptions, a consistent picture of substantial concentration enhancement of highly polarizable anions at the surface of aqueous…”
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Proton Transfer in Concentrated Aqueous Hydroxide Visualized Using Ultrafast Infrared Spectroscopy by Roberts, Sean T, Ramasesha, Krupa, Petersen, Poul B, Mandal, Aritra, Tokmakoff, Andrei

“…While it is generally recognized that the hydroxide ion can rapidly diffuse through aqueous solution due to its ability to accept a proton from a neighboring…”
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Near-Field Imaging of Nonlinear Optical Mixing in Single Zinc Oxide Nanowires by Johnson, Justin C, Yan, Haoquan, Schaller, Richard D, Petersen, Poul B, Yang, Peidong, Saykally, Richard J

“…The nonlinear optical response of semiconductor nanowires has potential application for frequency conversion in nanoscale optical circuitry. Here, second- and…”
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Solvation Shell Structure of Small Molecules and Proteins by IR-MCR Spectroscopy by Sun, Yuchen, Petersen, Poul B

“…The flexibility of the hydrogen-bonded network of water is the basis for its excellent solvation properties. Accordingly, it is valuable to understand the…”
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Order of Dry and Wet Mixed-Length Self-Assembled Monolayers by Barrett, Aliyah, Petersen, Poul B

“…Functionalizing the surface of metal and oxide materials with self-assembled monolayers is an elegant method for tuning the chemical properties of the…”
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Interferometric 2D Sum Frequency Generation Spectroscopy Reveals Structural Heterogeneity of Catalytic Monolayers on Transparent Materials by Vanselous, Heather, Stingel, Ashley M, Petersen, Poul B

“…Molecular monolayers exhibit structural and dynamical properties that are different from their bulk counterparts due to their interaction with the substrate…”
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Couplings Across the Vibrational Spectrum Caused by Strong Hydrogen Bonds: A Continuum 2D IR Study of the 7‑Azaindole–Acetic Acid Heterodimer by Stingel, Ashley M, Petersen, Poul B

“…Strongly hydrogen-bonded motifs provide structural stability and can act as proton transfer relays to drive chemical processes in biological and chemical…”
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Is the liquid water surface basic or acidic? Macroscopic vs. molecular-scale investigations by Petersen, Poul B., Saykally, Richard J.

“…Results from resonant UV second harmonic generation 21 (SHG) experiments that are best modeled by surface depletion of hydroxide and establish at most a weak…”
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Wedge-Based Design for Phase Stable and Phase Accurate Heterodyne-Detected Sum-Frequency Generation Spectroscopy by Sanders, Stephanie E, Stingel, Ashley M, Petersen, Poul B

“…Phase sensitive and heterodyne-detected (HD) sum-frequency generation (SFG) spectroscopy offers the ability to separate the nonlinear susceptibility into its…”
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Decomposition of the Experimental Raman and Infrared Spectra of Acidic Water into Proton, Special Pair, and Counterion Contributions by Daly, Clyde A., Streacker, Louis M., Sun, Yuchen, Pattenaude, Shannon R., Hassanali, Ali A., Petersen, Poul B., Corcelli, Steven A., Ben-Amotz, Dor

“…Textbooks describe excess protons in liquid water as hydronium (H3O+) ions, although their true structure remains lively debated. To address this question, we…”
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