Optical second-harmonic images of sacran megamolecules aggregates
Optical second-harmonic images of sacran megamolecules aggregates
We have detected a second-order nonlinear optical response from aggregates of the ampholytic megamolecular polysaccharide sacran extracted from cyanobacterial biomaterials by using optical second-harmonic-generation (SHG) microscopy. The SHG images of sacran cotton-like lump, fibers, and cast films showed SHG intensity microspots of several tens of micrometers in size. The dependence of the SHG spot intensity on an excitation light polarization angle was observed to illustrate sacran molecular orientation in these microdomains. We also observed SHG signals around a special region of the cast film edges of sacran. These results show that sacran megamolecules aggregate in several different ways.
146-152
Zhao, Yue
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Khuat, Thi Thu Hien
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Mizutani, Goro
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Rutt, Harvey
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Amornwachirabodee, Kittima
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Okajima, Maiko
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Kaneko, Tatsuo
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February 2017
Zhao, Yue
2e7dbe56-05c2-4b9e-bd73-5c388a875989
Khuat, Thi Thu Hien
ba19e88b-d9d2-4781-ab00-bdcaf32113f4
Mizutani, Goro
65900bcb-3c20-4fb1-9048-3db4c4cffc6a
Rutt, Harvey
e09fa327-0c01-467a-9898-4e7f0cd715fc
Amornwachirabodee, Kittima
614f39a4-f006-4035-a2d1-80f9fe5669a8
Okajima, Maiko
a4b15a60-4791-48c4-b147-fd29214faf8d
Kaneko, Tatsuo
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Zhao, Yue, Khuat, Thi Thu Hien, Mizutani, Goro, Rutt, Harvey, Amornwachirabodee, Kittima, Okajima, Maiko and Kaneko, Tatsuo
(2017)
Optical second-harmonic images of sacran megamolecules aggregates.
Journal of the Optical Society of America A, 34 (2), .
(doi:10.1364/JOSAA.34.000146).
Abstract
We have detected a second-order nonlinear optical response from aggregates of the ampholytic megamolecular polysaccharide sacran extracted from cyanobacterial biomaterials by using optical second-harmonic-generation (SHG) microscopy. The SHG images of sacran cotton-like lump, fibers, and cast films showed SHG intensity microspots of several tens of micrometers in size. The dependence of the SHG spot intensity on an excitation light polarization angle was observed to illustrate sacran molecular orientation in these microdomains. We also observed SHG signals around a special region of the cast film edges of sacran. These results show that sacran megamolecules aggregate in several different ways.
Text
0.JSOAA-Submitted version-160803.pdf
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More information
Accepted/In Press date: 4 December 2016
e-pub ahead of print date: 6 December 2016
Published date: February 2017
Organisations:
Nanoelectronics and Nanotechnology
Identifiers
Local EPrints ID: 403169
URI: http://eprints.soton.ac.uk/id/eprint/403169
ISSN: 1084-7529
PURE UUID: 1e02e362-f451-4c52-8ffd-6fb1c70db9eb
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Date deposited: 01 Feb 2017 09:34
Last modified: 15 Mar 2024 03:36
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Contributors
Author:
Yue Zhao
Author:
Thi Thu Hien Khuat
Author:
Goro Mizutani
Author:
Harvey Rutt
Author:
Kittima Amornwachirabodee
Author:
Maiko Okajima
Author:
Tatsuo Kaneko
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