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Light-Induced Deformation of Azobenzene-Containing Colloidal Spheres

  • We report on light-induced deformation of colloidal spheres consisting of azobenzene-containing polymers. The colloids of the size between 60 nm and 2 mu m in diameter were drop casted on a glass surface and irradiated with linearly polarized light. It was found that colloidal particles can be deformed up to ca. 6 times of their initial diameter. The maximum degree of deformation depends on the irradiation wavelength and intensity, as well as on colloidal particles size. On the basis of recently proposed theory by Toshchevikov et al. [J. Phys. Chem. Lett. 2017, 8, 1094], we calculated the optomechanical stresses (ca. 100 MPa) needed for such giant deformations and compared them with the experimental results.

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Author details:Sarah Loebner, Nino Lomadze, Alexey KopyshevORCiDGND, Markus Koch, Olga GuskovaORCiD, Marina SaphiannikovaORCiD, Svetlana SanterORCiDGND
DOI:https://doi.org/10.1021/acs.jpcb.7b11644
ISSN:1520-6106
Pubmed ID:https://pubmed.ncbi.nlm.nih.gov/29337554
Title of parent work (English):The journal of physical chemistry : B, Condensed matter, materials, surfaces, interfaces & biophysical chemistry
Subtitle (English):Calculation and Measurement of Opto-Mechanical Stresses
Publisher:American Chemical Society
Place of publishing:Washington
Publication type:Article
Language:English
Date of first publication:2018/02/15
Publication year:2018
Release date:2022/01/24
Volume:122
Issue:6
Number of pages:9
First page:2001
Last Page:2009
Funding institution:German Research Council (DFG)German Research Foundation (DFG) [GU 1510/3-1, SA 1657/13-1]; Helmholtz Graduate School on Macromolecular Bioscience (Teltow, Germany)
Organizational units:Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie
DDC classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Peer review:Referiert
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