Multiphoton fabrication of freeform polymer microstructures with gold nanorods

Wen Shuo Kuo; Chi Hsiang Lien; Keng Chi Cho; Chia Yuan Chang; Chun Yu Lin; Lynn L.H. Huang; Paul J. Campagnola; Chen Yuan Dong; Shean Jen Chen

doi:10.1364/OE.18.027550

Multiphoton fabrication of freeform polymer microstructures with gold nanorods

Wen Shuo Kuo^*, Chi Hsiang Lien, Keng Chi Cho, Chia Yuan Chang, Chun Yu Lin, Lynn L.H. Huang, Paul J. Campagnola, Chen Yuan Dong, Shean Jen Chen

^*Corresponding author for this work

Institute of Imaging and Biomedical Photonics

Research output: Contribution to journal › Article › peer-review

32 Scopus citations

Abstract

In this study, three-dimensional (3D) polyacrylamide microstructures containing gold nanorods (AuNRs) were fabricated by two-photon polymerization (TPP) using Rose Bengal (RB) as the photoinitiator. To retain AuNRs in the 3D polymer microstructures, the laser wavelength was chosen for two-photon RB absorption for improved TPP efficiency, but not for enhancing the longitudinal plasmon resonance of AuNRs which may result in photothermal damage of AuNRs. After TPP processing, the laser wavelength was tuned for the longitudinal plasmon resonance and the laser power was increased to beyond the damage threshold of the AuNRs for reshaping the AuNRs into gold nanospheres. As a result, AuNRs in designated positions of the fabricated 3D microstructures can be achieved. Two-photon luminescence from the doped AuNRs can also act as contrast agent for the visualization of 3D polymer microstructures.

Original language	English
Pages (from-to)	27550-27559
Number of pages	10
Journal	Optics Express
Volume	18
Issue number	26
DOIs	https://doi.org/10.1364/OE.18.027550
State	Published - 20 Dec 2010

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title = "Multiphoton fabrication of freeform polymer microstructures with gold nanorods",

abstract = "In this study, three-dimensional (3D) polyacrylamide microstructures containing gold nanorods (AuNRs) were fabricated by two-photon polymerization (TPP) using Rose Bengal (RB) as the photoinitiator. To retain AuNRs in the 3D polymer microstructures, the laser wavelength was chosen for two-photon RB absorption for improved TPP efficiency, but not for enhancing the longitudinal plasmon resonance of AuNRs which may result in photothermal damage of AuNRs. After TPP processing, the laser wavelength was tuned for the longitudinal plasmon resonance and the laser power was increased to beyond the damage threshold of the AuNRs for reshaping the AuNRs into gold nanospheres. As a result, AuNRs in designated positions of the fabricated 3D microstructures can be achieved. Two-photon luminescence from the doped AuNRs can also act as contrast agent for the visualization of 3D polymer microstructures.",

author = "Kuo, {Wen Shuo} and Lien, {Chi Hsiang} and Cho, {Keng Chi} and Chang, {Chia Yuan} and Lin, {Chun Yu} and Huang, {Lynn L.H.} and Campagnola, {Paul J.} and Dong, {Chen Yuan} and Chen, {Shean Jen}",

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doi = "10.1364/OE.18.027550",

language = "English",

volume = "18",

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T1 - Multiphoton fabrication of freeform polymer microstructures with gold nanorods

AU - Kuo, Wen Shuo

AU - Lien, Chi Hsiang

AU - Cho, Keng Chi

AU - Chang, Chia Yuan

AU - Lin, Chun Yu

AU - Huang, Lynn L.H.

AU - Campagnola, Paul J.

AU - Dong, Chen Yuan

AU - Chen, Shean Jen

PY - 2010/12/20

Y1 - 2010/12/20

N2 - In this study, three-dimensional (3D) polyacrylamide microstructures containing gold nanorods (AuNRs) were fabricated by two-photon polymerization (TPP) using Rose Bengal (RB) as the photoinitiator. To retain AuNRs in the 3D polymer microstructures, the laser wavelength was chosen for two-photon RB absorption for improved TPP efficiency, but not for enhancing the longitudinal plasmon resonance of AuNRs which may result in photothermal damage of AuNRs. After TPP processing, the laser wavelength was tuned for the longitudinal plasmon resonance and the laser power was increased to beyond the damage threshold of the AuNRs for reshaping the AuNRs into gold nanospheres. As a result, AuNRs in designated positions of the fabricated 3D microstructures can be achieved. Two-photon luminescence from the doped AuNRs can also act as contrast agent for the visualization of 3D polymer microstructures.

AB - In this study, three-dimensional (3D) polyacrylamide microstructures containing gold nanorods (AuNRs) were fabricated by two-photon polymerization (TPP) using Rose Bengal (RB) as the photoinitiator. To retain AuNRs in the 3D polymer microstructures, the laser wavelength was chosen for two-photon RB absorption for improved TPP efficiency, but not for enhancing the longitudinal plasmon resonance of AuNRs which may result in photothermal damage of AuNRs. After TPP processing, the laser wavelength was tuned for the longitudinal plasmon resonance and the laser power was increased to beyond the damage threshold of the AuNRs for reshaping the AuNRs into gold nanospheres. As a result, AuNRs in designated positions of the fabricated 3D microstructures can be achieved. Two-photon luminescence from the doped AuNRs can also act as contrast agent for the visualization of 3D polymer microstructures.

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SN - 1094-4087

VL - 18

SP - 27550

EP - 27559

JO - Optics Express

JF - Optics Express

IS - 26

ER -

Multiphoton fabrication of freeform polymer microstructures with gold nanorods

Abstract

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