Programme

P.80 -- Poster, VCTP-44

Date: Thursday, 1 August 2019

Time: 08:30 - 10:00

Effects of the gold nanoparticle size on resonance energy transfers in optics system

N. Minh Hoa (1), L. Anh Thi (2), T. V. Nhan Hao (3), D Duc Anh (4), D. Quang Tam (1), D. T. N. Hoa (1), D. Hoang Tung (5)

(1) Faculty of Basic Sciences, Hue University of Medicine and Pharmacy, 06 Ngo Quyen Street, Hue City, Vietnam; (2) Institute of Research and Development, Duy Tan University, 03 Quang Trung Street, Da Nang City, Vietnam; (3) Faculty of Physics, University of Education, Hue University, 34 Le Loi Street, Hue City, Vietnam (4) NTT Hi-Tech Insitute, Nguyen Tat Thanh University, Ho Chi Minh City, 700000, Vietnam; (5) Institute of Physics, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Street, Hanoi, Vietnam

We present an analytical model for the fluorescence resonance energy transfer (FRET) between the molecules (donor) and the gold nanoparticles (acceptor). Using a simple model, the dependence of nanoparticle size on the resonance energy transfer’s intensity and the energy transfer mechanism has been analyzed. By taking into account the interaction between gold nanoparticles in vivo studies, the mechanism of energy transfer from the excited donors to acceptors has been described by a virtual photon exchange. Also, we suppose that the dipole-dipole interaction dominates in the electronic coupling. The obtained results show that, for small gold nanoparticles the energy transfer is the conventional FRET whereas the surface energy transfer (SET) dominates for the bigger particle size. Keywords: Metal, FRET, SET, gold nanoparticles. Email: nmhoa@huemed-univ.edu.vn

Presenter: Nguyễn Minh Hoa