Uvinduni Premadasa R&D Associate - Nonlinear Spectroscopy and Microscopy Contact PREMADASAUI@ORNL.GOV All Publications Conformationally Adaptable Extractant Flexes Strong Lanthanide Reverse-Size Selectivity Polymer Layer-Accelerated CO2 Absorption in Aqueous Amino Acid Solutions Hierarchical Ion Interactions in the Direct Air Capture of CO2 at Air/Aqueous Interfaces Towards Energy-Efficient Direct Air Capture with Photochemically-Driven CO2 Release and Solvent Regeneration Physicochemical control of solvation and molecular assembly of charged amphiphilic oligomers at air-aqueous interfaces... Spatial and Bidirectional Work Function Modulation of Monolayer Graphene with Patterned Polymer “Fluorozwitterists” Adsorption, Orientation, and Speciation of Amino Acids at Air–Aqueous Interfaces for the Direct Air Capture of CO2 Synergistic Assembly of Charged Oligomers and Amino Acids at the Air–Water Interface: An Avenue toward Surface-Directed CO2... Unravelling photoisomerization dynamics in a metastable-state photoacid... Probing liquid/liquid interfaces at and away from equilibrium using vibrational sum frequency generation Cations Control Lipid Bilayer Memcapacitance Associated with Long-Term Potentiation Ice Recrystallization Inhibition Activity of Soy Protein Hydrolysates Tracking Molecular Transport Across Oil/Aqueous Interfaces: Insight into “Antagonistic” Binding in Solvent Extraction Photochemically-Driven CO2 Release Using a Metastable-State Photoacid for Energy Efficient Direct Air Capture Chemical Feedback in the Self-Assembly and Function of Air–Liquid Interfaces: Insight into the Bottlenecks of CO 2 Direct Air Capture The Unexpected Role of Cations in the Self-Assembly of Positively Charged Amphiphiles at Liquid/Liquid Interfaces Assembly of polyelectrolyte star block copolymers at the oil–water interface... Considerations in upconversion: A practical guide to sum-frequency generation spectrometer design and implementation Understanding Self-Assembly and the Stabilization of Liquid/Liquid Interfaces: The Importance of Ligand Tail Branching and Oil-Phase Solvation Nanoparticle-Induced Disorder at Complex Liquid–Liquid Interfaces: Effects of Curvature and Compositional Synergy on Functional Surfaces Spatially Co-registered Wide-field Nonlinear Optical Imaging of Living and Complex Biosystems in a Total Internal Reflection Geometry Total internal reflection enabled wide-field coherent anti-Stokes Raman scattering microscopy Key Links ORCID Google Scholar Organizations Physical Sciences Directorate Chemical Sciences Division Separations and Polymer Chemistry Section Chemical Separations Group