High Possibility Assembling Method for Nano-Wire Sensor Using Optically Induced Dielectrophoresis and Its Application for the Manipulation of Etching Masks of Graphene Nanoribbon for the Detection of Protein Biomarker

Project: National Science and Technology CouncilNational Science and Technology Council Academic Grants

Project Details


In this project, we aim to use optically induced dielectrophoresis platform to manipulate nanowires, which can facilitate the assembling of nanowire sensor and position the nanowire as an etching mask of fabricarion graphene nanoribbons. The traditional bottom-up methods for assembling nanowire sensor highly rely on the possibility. In this study, the optical image generated from the optically induced dielectrophoresis platform is used to manipulate nanowire toward the electrodes. Then, the dielectrophoretic force is switched to the electrodes and thus the nanowire can be aligned on the gap of two electrodes. By using this method, each gap of electrodes can have a nanowire and thus the high possibility assembling method can be achieved. The purpose of the first year is to achieve the connection of nanowire between two electrodes gap through optically induced dielectrophoresis platform and to measure the electric property of nanowire material connected on the electrodes. Furthermore, the nanowire will be treated with some surface modification methods such as APTES to be able to link with an antibody. The modified nanowire will be integrated in a microchannel to measure a cancer related protein biomarker. We expect that with the aid of high sensitivity of nanowire sensor, cancer related protein can be early detected in the early stage of cancer. The purpose of the second year is to achieve the surface modification of nanowire sensor and quantitative measure a bladder cancer related protein APOA1 through the nanowire sensor. In addition, the manipulation of nanowire can be a promising tool for the arrangement of the etching mask for the fabrication of graphene nanoribbons. With different diameter of nanowire as etching mask and different etching parameter of oxygen plasma, the width of graphene nanoribbon can be controlled accordingly. The graphene is a well-known material for high speed electronic devices or high sensitivity sensor. The purpose of the third year is to achieve the manipulation of nanowire as the etching mask of fabrication graphene nanoribbon. The fabrication of various width of ribbon and the measurement of electric properties of those ribbons are also achieved. The feasibility of using graphene nanoribbon as a biosensor is also studied.

Project IDs

Project ID:PB10401-1792
External Project ID:MOST103-2221-E182-016-MY2
Effective start/end date01/08/1531/07/16


  • optically induced dielectrophoresis
  • nanowire
  • sensor
  • graphene nanoribbon
  • microfluidics


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