Extension and measurements on multicomponent phospholipid vesicles by use of dual-beam optical tweezers

Masatoshi Ichikawa, Yoko Shitamichi, Yasuyuki Kimura

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

A micrometer-sized giant vesicle is studied by extending from the inside by using dual-beam optical tweezers in order to measure mechanical properties such as bending rigidity and surface tension of the membrane. As a micrometer-sized vesicle is extended, its shape gradually changes from a sphere to a lemon-shape, and discretely the lemon-shape deforms into a shape of a tube beside a sphere or a lemon part. The surface tension and the bending rigidity of the lipid membrane are obtained from the measured force-extension curve. In the one-phase vesicle, it is found that the surface tension is increasing as the charged component increasing, but the bending rigidity remains almost constant. In the phase-separated vesicle, the characteristic deformation different from one in the one-phase vesicle has been observed.

Original languageEnglish
Title of host publication20th Anniversary MHS 2009 and Micro-Nano Global COE - 2009 International Symposium on Micro-NanoMechatronics and Human Science
Pages170-175
Number of pages6
DOIs
Publication statusPublished - Dec 1 2009
Event20th Anniversary MHS 2009 and Micro-Nano Global COE - 2009 International Symposium on Micro-NanoMechatronics and Human Science - Nagoya, Japan
Duration: Nov 8 2009Nov 11 2009

Publication series

Name20th Anniversary MHS 2009 and Micro-Nano Global COE - 2009 International Symposium on Micro-NanoMechatronics and Human Science

Other

Other20th Anniversary MHS 2009 and Micro-Nano Global COE - 2009 International Symposium on Micro-NanoMechatronics and Human Science
CountryJapan
CityNagoya
Period11/8/0911/11/09

Fingerprint

Optical tweezers
Phospholipids
Rigidity
Surface tension
Membranes
Mechanical properties

All Science Journal Classification (ASJC) codes

  • Computer Science(all)
  • Control and Systems Engineering
  • Electrical and Electronic Engineering

Cite this

Ichikawa, M., Shitamichi, Y., & Kimura, Y. (2009). Extension and measurements on multicomponent phospholipid vesicles by use of dual-beam optical tweezers. In 20th Anniversary MHS 2009 and Micro-Nano Global COE - 2009 International Symposium on Micro-NanoMechatronics and Human Science (pp. 170-175). [5351928] (20th Anniversary MHS 2009 and Micro-Nano Global COE - 2009 International Symposium on Micro-NanoMechatronics and Human Science). https://doi.org/10.1109/MHS.2009.5351928

Extension and measurements on multicomponent phospholipid vesicles by use of dual-beam optical tweezers. / Ichikawa, Masatoshi; Shitamichi, Yoko; Kimura, Yasuyuki.

20th Anniversary MHS 2009 and Micro-Nano Global COE - 2009 International Symposium on Micro-NanoMechatronics and Human Science. 2009. p. 170-175 5351928 (20th Anniversary MHS 2009 and Micro-Nano Global COE - 2009 International Symposium on Micro-NanoMechatronics and Human Science).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Ichikawa, M, Shitamichi, Y & Kimura, Y 2009, Extension and measurements on multicomponent phospholipid vesicles by use of dual-beam optical tweezers. in 20th Anniversary MHS 2009 and Micro-Nano Global COE - 2009 International Symposium on Micro-NanoMechatronics and Human Science., 5351928, 20th Anniversary MHS 2009 and Micro-Nano Global COE - 2009 International Symposium on Micro-NanoMechatronics and Human Science, pp. 170-175, 20th Anniversary MHS 2009 and Micro-Nano Global COE - 2009 International Symposium on Micro-NanoMechatronics and Human Science, Nagoya, Japan, 11/8/09. https://doi.org/10.1109/MHS.2009.5351928
Ichikawa M, Shitamichi Y, Kimura Y. Extension and measurements on multicomponent phospholipid vesicles by use of dual-beam optical tweezers. In 20th Anniversary MHS 2009 and Micro-Nano Global COE - 2009 International Symposium on Micro-NanoMechatronics and Human Science. 2009. p. 170-175. 5351928. (20th Anniversary MHS 2009 and Micro-Nano Global COE - 2009 International Symposium on Micro-NanoMechatronics and Human Science). https://doi.org/10.1109/MHS.2009.5351928
Ichikawa, Masatoshi ; Shitamichi, Yoko ; Kimura, Yasuyuki. / Extension and measurements on multicomponent phospholipid vesicles by use of dual-beam optical tweezers. 20th Anniversary MHS 2009 and Micro-Nano Global COE - 2009 International Symposium on Micro-NanoMechatronics and Human Science. 2009. pp. 170-175 (20th Anniversary MHS 2009 and Micro-Nano Global COE - 2009 International Symposium on Micro-NanoMechatronics and Human Science).
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