In-situ Monitoring of Photocontrollable Wrinkle Erasure in Azobenzene-based Supramolecular Systems

Yujiao Dong; Pedro E.S. Silva; Jaakko V.I. Timonen; Jaana Vapaavuori

doi:10.1002/cphc.202300153

In-situ Monitoring of Photocontrollable Wrinkle Erasure in Azobenzene-based Supramolecular Systems

Yujiao Dong, Pedro E.S. Silva, Jaakko V.I. Timonen, Jaana Vapaavuori^*

^*Corresponding author for this work

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

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Abstract

In this contribution, dynamic photoinduced wrinkle erasure enabled by photomechanical changes in supramolecular polymer-azo complexes was characterized via confocal microscopy. Different photoactive molecules, disperse yellow 7 (DY7) and 4,4′-dihydroxyazobenzene (DHAB), were compared to 4-hydroxy-4′-dimethylaminoazobenzene (OH-azo-DMA). The characteristic erasure times of wrinkles were quickly assessed by using an image processing algorithm. The results confirm that the photoinduced movement on the topmost layer can be successfully transferred to the substrate. Furthermore, the chosen supramolecular strategy allows decoupling the effect of molecular weight of the polymer and photochemistry of the chromophore, allowing quantitative comparison of wrinkling erasure efficiency of different materials and providing a facile way to optimize the system for specific applications.

Original language	English
Article number	e202300153
Number of pages	8
Journal	ChemPhysChem
Volume	24
Issue number	13
Early online date	5 May 2023
DOIs	https://doi.org/10.1002/cphc.202300153
Publication status	Published - 3 Jul 2023
MoE publication type	A1 Journal article-refereed

Keywords

Azo compounds
confocal microscope
photocontrollable wrinkle erasure
supramolecular chemistry

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10.1002/cphc.202300153Licence: CC BY

CHEM_Dong_et_al_In‐situ_Monitoring_2023_ChemPhysChemFinal published version, 935 KBLicence: CC BY

Cite this

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title = "In-situ Monitoring of Photocontrollable Wrinkle Erasure in Azobenzene-based Supramolecular Systems",

abstract = "In this contribution, dynamic photoinduced wrinkle erasure enabled by photomechanical changes in supramolecular polymer-azo complexes was characterized via confocal microscopy. Different photoactive molecules, disperse yellow 7 (DY7) and 4,4′-dihydroxyazobenzene (DHAB), were compared to 4-hydroxy-4′-dimethylaminoazobenzene (OH-azo-DMA). The characteristic erasure times of wrinkles were quickly assessed by using an image processing algorithm. The results confirm that the photoinduced movement on the topmost layer can be successfully transferred to the substrate. Furthermore, the chosen supramolecular strategy allows decoupling the effect of molecular weight of the polymer and photochemistry of the chromophore, allowing quantitative comparison of wrinkling erasure efficiency of different materials and providing a facile way to optimize the system for specific applications.",

keywords = "Azo compounds, confocal microscope, photocontrollable wrinkle erasure, supramolecular chemistry",

author = "Yujiao Dong and Silva, {Pedro E.S.} and Timonen, {Jaakko V.I.} and Jaana Vapaavuori",

note = "| openaire: EC/H2020/949648/EU//ModelCom Funding Information: Academy of Finland project SUPER‐WEAR (decision number 322214) and PREIN (decision number 320167), as well as Horizon Europe project “ModelCom” (grant agreement number 949648) are gratefully acknowledged for funding. This work utilized the facilities of RAMI national research infrastructure based at Aalto University. In addition, Yujiao Dong acknowledges Tytti K{\"a}rki from Active Matter group in the Department of Applied Physics Aalto University School of Science, for the help with confocal microscope. Publisher Copyright: {\textcopyright} 2023 The Authors. ChemPhysChem published by Wiley-VCH GmbH.",

year = "2023",

month = jul,

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doi = "10.1002/cphc.202300153",

language = "English",

volume = "24",

journal = "ChemPhysChem",

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publisher = "Wiley-VCH Verlag",

number = "13",

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T1 - In-situ Monitoring of Photocontrollable Wrinkle Erasure in Azobenzene-based Supramolecular Systems

AU - Dong, Yujiao

AU - Silva, Pedro E.S.

AU - Timonen, Jaakko V.I.

AU - Vapaavuori, Jaana

N1 - | openaire: EC/H2020/949648/EU//ModelCom Funding Information: Academy of Finland project SUPER‐WEAR (decision number 322214) and PREIN (decision number 320167), as well as Horizon Europe project “ModelCom” (grant agreement number 949648) are gratefully acknowledged for funding. This work utilized the facilities of RAMI national research infrastructure based at Aalto University. In addition, Yujiao Dong acknowledges Tytti Kärki from Active Matter group in the Department of Applied Physics Aalto University School of Science, for the help with confocal microscope. Publisher Copyright: © 2023 The Authors. ChemPhysChem published by Wiley-VCH GmbH.

PY - 2023/7/3

Y1 - 2023/7/3

N2 - In this contribution, dynamic photoinduced wrinkle erasure enabled by photomechanical changes in supramolecular polymer-azo complexes was characterized via confocal microscopy. Different photoactive molecules, disperse yellow 7 (DY7) and 4,4′-dihydroxyazobenzene (DHAB), were compared to 4-hydroxy-4′-dimethylaminoazobenzene (OH-azo-DMA). The characteristic erasure times of wrinkles were quickly assessed by using an image processing algorithm. The results confirm that the photoinduced movement on the topmost layer can be successfully transferred to the substrate. Furthermore, the chosen supramolecular strategy allows decoupling the effect of molecular weight of the polymer and photochemistry of the chromophore, allowing quantitative comparison of wrinkling erasure efficiency of different materials and providing a facile way to optimize the system for specific applications.

AB - In this contribution, dynamic photoinduced wrinkle erasure enabled by photomechanical changes in supramolecular polymer-azo complexes was characterized via confocal microscopy. Different photoactive molecules, disperse yellow 7 (DY7) and 4,4′-dihydroxyazobenzene (DHAB), were compared to 4-hydroxy-4′-dimethylaminoazobenzene (OH-azo-DMA). The characteristic erasure times of wrinkles were quickly assessed by using an image processing algorithm. The results confirm that the photoinduced movement on the topmost layer can be successfully transferred to the substrate. Furthermore, the chosen supramolecular strategy allows decoupling the effect of molecular weight of the polymer and photochemistry of the chromophore, allowing quantitative comparison of wrinkling erasure efficiency of different materials and providing a facile way to optimize the system for specific applications.

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In-situ Monitoring of Photocontrollable Wrinkle Erasure in Azobenzene-based Supramolecular Systems

Abstract

Keywords

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ModelCom: Autonomously adapting and communicating modular textiles

-: Super-stretchable functionalized materials and fibers for third generation wearable technology

PREIN: Photonics Research and Innovation

Raw Materials Research Infrastructure

Cite this

In-situ Monitoring of Photocontrollable Wrinkle Erasure in Azobenzene-based Supramolecular Systems

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Projects

ModelCom: Autonomously adapting and communicating modular textiles

-: Super-stretchable functionalized materials and fibers for third generation wearable technology

PREIN: Photonics Research and Innovation

Equipment

Raw Materials Research Infrastructure

Cite this