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Surface enhanced Raman scattering based molecule detection using self-assembled DNA nanostructures
Kim, M.,Lee, J.,Dugasani, S.R.,Huh, N.,Park, S.H.,Park, S.C. Elsevier 2015 Current Applied Physics Vol.15 No.9
A novel method of Surface Enhanced Raman Scattering (SERS) based molecular detection was developed using self-assembled DNA nanostructures. Molecule detection using rigid, shape-controllable DNA nanostructures provides significant advantages such as accurate control of the particle distance and geometrical programmability of the DNA nanostructure. We successfully detected the Cy3 dye, a Raman-active molecule, at 1461, 1590, and 1619 cm<SUP>-1</SUP> using a Ag-enhanced Au-DNA nanostructure. Consequently, DNA-guided SERS detection is expected to contribute significantly to molecular detecting systems in the near future.
Kim, M.,Kim, J. Pergamon Press ; Elsevier Science Ltd 2016 International journal of hydrogen energy Vol.41 No.38
<P>This paper presents a framework for the design and assessment of a renewable energy sources (RES)-based hydrogen supply system. We generate an integrated renewable hydrogen supply (IRHS) system that includes various types of RES and hydrogen technologies such as production, storage, and transportation. We then develop a multi-period deterministic optimization model for the IRHS system by using a mixed integer linear programming (MILP) technique. The proposed model optimizes the configuration and operational strategy of the IRHS system. The capability of the proposed model is demonstrated through its application to the design problem of Korea's future hydrogen economy. We perform an economic evaluation to identify the major parameters for the required cost of the energy system infrastructure. (C) 2016 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.</P>