Paul D Ashby
Staff Scientist (Molecular Foundry)
Materials Sciences Division
Mail stop 67R02206 (Office 67-1202/1208)
Lawrence Berkeley National Laboratory
1 Cyclotron Road, Berkeley, California 94720 USA
Phone: +1-510-486-7081
FAX: +1-510-486-7268
Email:PDAshby*lbl.gov (replace * by @)
Eduction
B.S. Chemistry, Westmont College
Ph.D Physical Chemistry, Harvard University with Charles Lieber, “Intermolecular and Interfacial Forces: Elucidating Molecular Mechanisms using Chemical Force Microscopy”
Postdoctoral Fellow Lawrence Berkeley National Laboratory with Miquel Salmeron
Research interests
My research aims to understand the chemical factors that influence assembly and dynamics of molecular and nanostructured systems. The fruit of this work will be the design and self-assembly of higher utility nanostructures, such as designer proteins, synthetic biological systems, higher efficiency plastic photovoltaic devices, and more powerful and longer lifetime batteries. To this end, I use chemically sensitive interfacial analytical tools such as chemical force spectroscopy.
Research projects
- Imaging of membrane protein complexation and dynamics with ultrasmall cantilever AFM
- Water adsorption and structure of initial monolayers on well ordered organic functionalities (collaborators Zhi Liu (ALS), Miquel Salmeron)
- Solvation of well defined hydrophilic organic interfaces
- Structure of aqueous electrolyte solutions at solid-fluid interfaces (collaborator Alberto Striolo University of Oklahoma)
- Mechanical characterization of nanocrystal superlattices (collaborator Elena Shevchenko ANL)
Selected Publications
- Ashby, P.D., Lieber, C. M. Brownian Force Profile Reconstruction of interfacial 1-nonanol solvent structure, J. Am. Chem. Soc., 2004, 126, 16973-16980.
- Ashby, P.D., Lieber, C. M. Ultra Sensitive Imaging and Interfacial Analysis of Patterned Hydrophilic SAM Surfaces using Energy Dissipation Chemical Force Microscopy, J. Am. Chem. Soc., 2005, 127, 6814-6818.
- Ashby, P.D., Gentle imaging of soft materials in solution with amplitude modulation atomic force microscopy: Q control and thermal noise, Appl. Phys. Lett., 2007, 91, 254102.
- Ketteler, G., Ashby, P., Mun, B.S., Ratera, I., Bluhm, H., Kasemo, B., Salmeron, M., In situ photoelectron spectroscopy study of water adsorption on model biomaterial surfaces, J. Phys. Cond. Mat., 2008, 20, 184024.
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