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Title: Direct Laser Writing of Magneto-Photonic Sub-Microstructures for Prospective Applications in Biomedical Engineering

Here, we report on the fabrication of desired magneto-photonic devices by a low one-photon absorption (LOPA) direct laser writing (DLW) technique on a photocurable nanocomposite consisting of magnetite ( Fe 3O 4) nanoparticles and a commercial SU-8 photoresist. The magnetic nanocomposite was synthesized by mixing Fe 3O 4 nanoparticles with different kinds of SU-8 photoresists. We demonstrated that the degree of dispersion of Fe 3O 4 nanoparticles in the nanocomposite depended on the concentration of Fe 3O 4 nanoparticles, the viscosity of SU-8 resist, and the mixing time. By tuning these parameters, the most homogeneous magnetic nanocomposite was obtained with a concentration of about 2 wt % of Fe 3O 4 nanoparticles in SU-8 2005 photoresist for the mixing time of 20 days. The LOPA-based DLW technique was employed to fabricate on demand various magneto-photonic submicrometer structures, which are similar to those obtained without Fe 3O 4 nanoparticles. The magneto-photonic 2D and 3D structures with sizes as small as 150 nm were created. Finally, we demonstrated the strong magnetic field responses of the magneto-photonic nanostructures and their use as micro-actuators when immersed in a liquid solution. View Full-Text
Authors:
 [1] ;  [2] ;  [3] ;  [2] ;  [2] ;  [4] ;  [1]
  1. Univ. Paris-Saclay, Cachan (France). Laboratoire de Photonique Quantique et Moleculaire
  2. Hanoi National Univ. of Education, Cau Giay, Hanoi (Vietnam). Faculty of Physics
  3. Univ. Paris-Saclay, Cachan (France). Laboratoire de Photonique Quantique et Moleculaire; Vietnam Academy of Science and Technology, Hanoi (Vietnam). Inst. of Materials Science
  4. Univ. of South Florida, Tampa, FL (United States). Dept. of Physics
Publication Date:
Grant/Contract Number:
FG02-07ER46438; 03.03-2015.78
Type:
Accepted Manuscript
Journal Name:
Nanomaterials
Additional Journal Information:
Journal Volume: 7; Journal Issue: 12; Journal ID: ISSN 2079-4991
Publisher:
MDPI
Research Org:
Univ. of South Florida, Tampa, FL (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division; French National Research Agency (ANR)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; magnetic nanocomposite; magneto-photonic microstructures; one-photon absorption direct laser writing
OSTI Identifier:
1423809

Au, Thi Huong, Trinh, Duc Thien, Tong, Quang Cong, Do, Danh Bich, Nguyen, Dang Phu, Phan, Manh-Huong, and Lai, Ngoc Diep. Direct Laser Writing of Magneto-Photonic Sub-Microstructures for Prospective Applications in Biomedical Engineering. United States: N. p., Web. doi:10.3390/nano7050105.
Au, Thi Huong, Trinh, Duc Thien, Tong, Quang Cong, Do, Danh Bich, Nguyen, Dang Phu, Phan, Manh-Huong, & Lai, Ngoc Diep. Direct Laser Writing of Magneto-Photonic Sub-Microstructures for Prospective Applications in Biomedical Engineering. United States. doi:10.3390/nano7050105.
Au, Thi Huong, Trinh, Duc Thien, Tong, Quang Cong, Do, Danh Bich, Nguyen, Dang Phu, Phan, Manh-Huong, and Lai, Ngoc Diep. 2017. "Direct Laser Writing of Magneto-Photonic Sub-Microstructures for Prospective Applications in Biomedical Engineering". United States. doi:10.3390/nano7050105. https://www.osti.gov/servlets/purl/1423809.
@article{osti_1423809,
title = {Direct Laser Writing of Magneto-Photonic Sub-Microstructures for Prospective Applications in Biomedical Engineering},
author = {Au, Thi Huong and Trinh, Duc Thien and Tong, Quang Cong and Do, Danh Bich and Nguyen, Dang Phu and Phan, Manh-Huong and Lai, Ngoc Diep},
abstractNote = {Here, we report on the fabrication of desired magneto-photonic devices by a low one-photon absorption (LOPA) direct laser writing (DLW) technique on a photocurable nanocomposite consisting of magnetite ( Fe3O4) nanoparticles and a commercial SU-8 photoresist. The magnetic nanocomposite was synthesized by mixing Fe3O4 nanoparticles with different kinds of SU-8 photoresists. We demonstrated that the degree of dispersion of Fe3O4 nanoparticles in the nanocomposite depended on the concentration of Fe3O4 nanoparticles, the viscosity of SU-8 resist, and the mixing time. By tuning these parameters, the most homogeneous magnetic nanocomposite was obtained with a concentration of about 2 wt % of Fe3O4 nanoparticles in SU-8 2005 photoresist for the mixing time of 20 days. The LOPA-based DLW technique was employed to fabricate on demand various magneto-photonic submicrometer structures, which are similar to those obtained without Fe3O4 nanoparticles. The magneto-photonic 2D and 3D structures with sizes as small as 150 nm were created. Finally, we demonstrated the strong magnetic field responses of the magneto-photonic nanostructures and their use as micro-actuators when immersed in a liquid solution. View Full-Text},
doi = {10.3390/nano7050105},
journal = {Nanomaterials},
number = 12,
volume = 7,
place = {United States},
year = {2017},
month = {5}
}