FRET Measurement of Polymer Response under Shear

Polymer solutions under shear flow are often observed in manufacturing processes. Classically, polymer behavior is represented by Kuhn’s bead-spring model, in which only the elongation of polymer chains is assumed. In recent years, the compression of polymer chains under shear flow has been reported...

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Main Authors: Ryo Iwao, Hiroki Yamaguchi, Makoto Obata, Yu Matsuda
Format: Article
Language:English
Published: MDPI AG 2021-12-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/21/23/8033
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author Ryo Iwao
Hiroki Yamaguchi
Makoto Obata
Yu Matsuda
author_facet Ryo Iwao
Hiroki Yamaguchi
Makoto Obata
Yu Matsuda
author_sort Ryo Iwao
collection DOAJ
description Polymer solutions under shear flow are often observed in manufacturing processes. Classically, polymer behavior is represented by Kuhn’s bead-spring model, in which only the elongation of polymer chains is assumed. In recent years, the compression of polymer chains under shear flow has been reported. In this study, we investigated the behavior of polymer chains dissolved in various concentrations under shear flow. We measured the time variation of the fluorescence intensity emitted from a FRET (fluorescence resonance energy transfer) polymer, which enabled us to study the change in the distance between both ends of a polymer chain. The polymer chains appeared to stretch and compress depending on the concentration of the polymer solution. The results showed that the deformation of polymer chains was different from the classical theory. The FRET measurement is a promising diagnostic method for understanding the dynamics of polymer chains.
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spelling doaj.art-42589480848645ecb759c87e1e94f89e2023-11-23T03:02:58ZengMDPI AGSensors1424-82202021-12-012123803310.3390/s21238033FRET Measurement of Polymer Response under ShearRyo Iwao0Hiroki Yamaguchi1Makoto Obata2Yu Matsuda3Department of Micro-Nano Mechanical Science and Engineering, Nagoya University, Furo-cho, Chikusa, Nagoya 464-8603, JapanDepartment of Micro-Nano Mechanical Science and Engineering, Nagoya University, Furo-cho, Chikusa, Nagoya 464-8603, JapanInterdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 4-4-37 Takeda, Kofu 400-8510, JapanDepartment of Modern Mechanical Engineering, Waseda University, 3-4-1 Ookubo, Shinjuku-ku, Tokyo 169-8555, JapanPolymer solutions under shear flow are often observed in manufacturing processes. Classically, polymer behavior is represented by Kuhn’s bead-spring model, in which only the elongation of polymer chains is assumed. In recent years, the compression of polymer chains under shear flow has been reported. In this study, we investigated the behavior of polymer chains dissolved in various concentrations under shear flow. We measured the time variation of the fluorescence intensity emitted from a FRET (fluorescence resonance energy transfer) polymer, which enabled us to study the change in the distance between both ends of a polymer chain. The polymer chains appeared to stretch and compress depending on the concentration of the polymer solution. The results showed that the deformation of polymer chains was different from the classical theory. The FRET measurement is a promising diagnostic method for understanding the dynamics of polymer chains.https://www.mdpi.com/1424-8220/21/23/8033fluorescence measurementFRET (fluorescence resonance energy transfer)Couette flowshearpolystyrene
spellingShingle Ryo Iwao
Hiroki Yamaguchi
Makoto Obata
Yu Matsuda
FRET Measurement of Polymer Response under Shear
Sensors
fluorescence measurement
FRET (fluorescence resonance energy transfer)
Couette flow
shear
polystyrene
title FRET Measurement of Polymer Response under Shear
title_full FRET Measurement of Polymer Response under Shear
title_fullStr FRET Measurement of Polymer Response under Shear
title_full_unstemmed FRET Measurement of Polymer Response under Shear
title_short FRET Measurement of Polymer Response under Shear
title_sort fret measurement of polymer response under shear
topic fluorescence measurement
FRET (fluorescence resonance energy transfer)
Couette flow
shear
polystyrene
url https://www.mdpi.com/1424-8220/21/23/8033
work_keys_str_mv AT ryoiwao fretmeasurementofpolymerresponseundershear
AT hirokiyamaguchi fretmeasurementofpolymerresponseundershear
AT makotoobata fretmeasurementofpolymerresponseundershear
AT yumatsuda fretmeasurementofpolymerresponseundershear