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    •   BracU IR
    • School of Engineering (SoE)
    • Department of Electrical and Electronic Engineering (EEE)
    • Thesis & Design Report, BSc (Electrical and Electronic Engineering)
    • View Item
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    Investigation of gold nanorod monomer biosensors for label free molecule detection

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    12221030 & 12121058.pdf (498.0Kb)
    Date
    2016-12-14
    Publisher
    BRAC University
    Author
    Hasan, Rakib
    Rabbi, Fazle
    Metadata
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    URI
    http://hdl.handle.net/10361/7742
    Abstract
    Plasmon resonances have attracted a lot of recent research interest for their potential applications, including bio-sensing, sub-wavelength optics, negative refractive index metamaterials and their ability to produce massively enhanced electromagnetic fields. Localized surface plasmon resonances (LSPR) in metallic nanostructure can offer large electromagnetic enhancements and nanometer-scale localization of electric fields. Their resonance wavelength and properties can be tuned by variation of the nanostructure geometry and are sensitive to environmental refractive index. This thesis contains in depth investigation of gold nanorod monomer biosensors for label free molecule detection. Some core plasmonic properties of gold and its importance in LSPR sensing are analyzed. In addition, LSPR shifts are closely observed by varying different physical parameters of the biosensor structure. Furthermore, we closely observed the LSPR response by changing the physical environment of the biosensor structure by tuning corresponding refractive indices. Finally, we explored the responsible factors for the sensitivity of bio-proteins and compared our results with theory.
    Keywords
    Nanoplasmonics; Localized surface plasmon resonances (LSPR); Gold nanorod monomer; Label free molecule
     
    Description
    This thesis report is submitted in partial fulfillment of the requirements for the degree of Bachelor of Science in Electrical and Electronic Engineering, 2016.
     
    Cataloged from PDF version of thesis report.
     
    Includes bibliographical references (page 58-77).
    Department
    Department of Electrical and Electronic Engineering, BRAC University
    Collections
    • Thesis & Design Report, BSc (Electrical and Electronic Engineering)

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