Objective
Current microelectronics is rigorously based on silicon. DNA-based electronics is a prime example of an entirely alternative approach that, we believe, will enable to reduce the size of the current devices by ~1000 times. A specific innovative focus of this project is to investigate novel DNA-based derivatives that hold potential for improved properties with respect to native DNA. The derivatives that we suggest, G4-DNA, M-DNA and PC-DNA, pioneer as modified bio molecules that are proposed as electrical molecular wires. The research proposed here will provide a unique combination of state of the art capabilities for the production of DNA-based molecules, unique surface chemistry, scanning probe microscopy and spectroscopy and electrical transport measurements, sophisticated nano-fabrication, and leading theoretical skills, all combined to provide new solutions and information about conduction through DNA derivatives.
OBJECTIVES
The general objective of our collaborative research is to develop DNA-based nano-electronics. For that purpose we will:
1. Produce G4-DNA, M-DNA and PC-DNA molecular nano-wires and characterise their electrical properties;
2. Develop a control of the molecule-electrode and molecule-substrate interaction;
3. Develop a theoretical understanding of the energetic and the conduction mechanisms in these wires;
4. Develop model nano-electronic devices on the basis of the above DNA-Based wires.
DESCRIPTION OF WORK
The G4-DNA and M-DNA, with and without a variety of redox active metal ions, will be produced by the biochemistry group of Kotlyar. This group will continue to produce the wires in an increasing maximum length. It will modify the chemical structure of the molecules according to the feedback obtained by the 'measuring' groups and the theoretical modelling. The molecules will be transferred to the measuring groups and to Yitzchaik group that will wrap the molecules with various types of conducting polymers. This group will also selectively coat the metal surfaces and the non-conducting surfaces of the sample substrates in order to tune the charge injection to the molecules and their surface affinity. The samples, either on suitable substrate or in solution, will be transferred to the groups of Porath, Gomez and Kapon for the performance of the SPM, electrical transport measurements and electrical transport measurements combined with optical excitations. The electrical transport measurements will be performed on single molecules that are attached to lithographically prepare metal electrodes.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: https://op.europa.eu/en/web/eu-vocabularies/euroscivoc.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: https://op.europa.eu/en/web/eu-vocabularies/euroscivoc.
- natural sciences biological sciences genetics DNA
- natural sciences physical sciences optics microscopy
- natural sciences physical sciences electromagnetism and electronics microelectronics
- natural sciences chemical sciences inorganic chemistry metalloids
- natural sciences physical sciences optics spectroscopy
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Coordinator
69978 TEL AVIV
Israel
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.