Tunable, Low–Cost, Multi–Channel, Broadband Liquid Crystal Shutter for Fluorescence Imaging in Widefield Microscopy

Bistable liquid crystal (LC) shutters have attracted much interest due to their low energy consumption and fast response time. In this paper, we demonstrate an electrically tunable/switchable biostable LC light shutter in biological optics through a three–step easy–assembly, inexpensive, multi–chann...

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Main Authors: Yan Gong, Bo Li, Cheng-You Yao, Weiyang Yang, Qi Hua Fan, Zhen Qiu, Wen Li
Format: Article
Language:English
Published: MDPI AG 2022-08-01
Series:Micromachines
Subjects:
Online Access:https://www.mdpi.com/2072-666X/13/8/1310
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author Yan Gong
Bo Li
Cheng-You Yao
Weiyang Yang
Qi Hua Fan
Zhen Qiu
Wen Li
author_facet Yan Gong
Bo Li
Cheng-You Yao
Weiyang Yang
Qi Hua Fan
Zhen Qiu
Wen Li
author_sort Yan Gong
collection DOAJ
description Bistable liquid crystal (LC) shutters have attracted much interest due to their low energy consumption and fast response time. In this paper, we demonstrate an electrically tunable/switchable biostable LC light shutter in biological optics through a three–step easy–assembly, inexpensive, multi–channel shutter. The liquid crystal exhibits tunable transparency (100% to 10% compared to the initial light intensity) under different voltages (0 V to 90 V), indicating its tunable potential. By using biomedical images, the response time, resolution, and light intensity changes of the LC under different voltages in three common fluorescence wavelengths are displayed intuitively. Particularly, the shutter’s performance in tumor images under the near–infrared band shows its application potential in biomedical imaging fields.
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spelling doaj.art-07f9b966b89d44d69d09e16f608e42d72023-11-30T22:00:46ZengMDPI AGMicromachines2072-666X2022-08-01138131010.3390/mi13081310Tunable, Low–Cost, Multi–Channel, Broadband Liquid Crystal Shutter for Fluorescence Imaging in Widefield MicroscopyYan Gong0Bo Li1Cheng-You Yao2Weiyang Yang3Qi Hua Fan4Zhen Qiu5Wen Li6Electrical and Computer Engineering Department, Michigan State University, 428 S Shaw Ln, #2120, East Lansing, MI 48824, USAElectrical and Computer Engineering Department, Michigan State University, 428 S Shaw Ln, #2120, East Lansing, MI 48824, USABiomedical Engineering Department, Michigan State University, 775 Woodlot Dr, East Lansing, MI 48824, USAElectrical and Computer Engineering Department, Michigan State University, 428 S Shaw Ln, #2120, East Lansing, MI 48824, USAElectrical and Computer Engineering Department, Michigan State University, 428 S Shaw Ln, #2120, East Lansing, MI 48824, USABiomedical Engineering Department, Michigan State University, 775 Woodlot Dr, East Lansing, MI 48824, USAElectrical and Computer Engineering Department, Michigan State University, 428 S Shaw Ln, #2120, East Lansing, MI 48824, USABistable liquid crystal (LC) shutters have attracted much interest due to their low energy consumption and fast response time. In this paper, we demonstrate an electrically tunable/switchable biostable LC light shutter in biological optics through a three–step easy–assembly, inexpensive, multi–channel shutter. The liquid crystal exhibits tunable transparency (100% to 10% compared to the initial light intensity) under different voltages (0 V to 90 V), indicating its tunable potential. By using biomedical images, the response time, resolution, and light intensity changes of the LC under different voltages in three common fluorescence wavelengths are displayed intuitively. Particularly, the shutter’s performance in tumor images under the near–infrared band shows its application potential in biomedical imaging fields.https://www.mdpi.com/2072-666X/13/8/1310liquid crystal shutternematic liquid crystalfluorescence imagingtumor imagingbroadband
spellingShingle Yan Gong
Bo Li
Cheng-You Yao
Weiyang Yang
Qi Hua Fan
Zhen Qiu
Wen Li
Tunable, Low–Cost, Multi–Channel, Broadband Liquid Crystal Shutter for Fluorescence Imaging in Widefield Microscopy
Micromachines
liquid crystal shutter
nematic liquid crystal
fluorescence imaging
tumor imaging
broadband
title Tunable, Low–Cost, Multi–Channel, Broadband Liquid Crystal Shutter for Fluorescence Imaging in Widefield Microscopy
title_full Tunable, Low–Cost, Multi–Channel, Broadband Liquid Crystal Shutter for Fluorescence Imaging in Widefield Microscopy
title_fullStr Tunable, Low–Cost, Multi–Channel, Broadband Liquid Crystal Shutter for Fluorescence Imaging in Widefield Microscopy
title_full_unstemmed Tunable, Low–Cost, Multi–Channel, Broadband Liquid Crystal Shutter for Fluorescence Imaging in Widefield Microscopy
title_short Tunable, Low–Cost, Multi–Channel, Broadband Liquid Crystal Shutter for Fluorescence Imaging in Widefield Microscopy
title_sort tunable low cost multi channel broadband liquid crystal shutter for fluorescence imaging in widefield microscopy
topic liquid crystal shutter
nematic liquid crystal
fluorescence imaging
tumor imaging
broadband
url https://www.mdpi.com/2072-666X/13/8/1310
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