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Observation of self-spreading lipid bilayer on hydrophilic surface with a periodic array of metallic nano-gate

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Title: Observation of self-spreading lipid bilayer on hydrophilic surface with a periodic array of metallic nano-gate
Authors: Nabika, H.1, Takimoto, B.1, Iijima, N.1, Murakoshi, K. kei@sci.hokudai.ac.jp
Source: Electrochimica Acta. Sep2008, Vol. 53 Issue 21, p6278-6283. 6p.
Subjects: Electron optics, Particles (Nuclear physics), Electron beams, Electron beam lithography
Abstract: Abstract: We have fabricated micro-channel with a periodic array of nano-gate with a width of 500 and 100nm by electron beam lithography. The effect of nano-gates on the self-spreading of egg-PC bilayer doped with dye-labeled lipid TR-DHPE was investigated using fluorescence microscope. Compared with the control channel without the nano-gate, the self-spreading velocity was suppressed due to the presence of nano-gate. The quantitative analysis of the spreading behavior suggests that the self-spreading bilayer was compressed during passing through the gate. This structural deformation imposed an energetic barrier for the self-spreading, leading to reduction of the spreading velocity. Furthermore, the number of TR-DHPE molecule in the spreading bilayer was apparently decreased during spreading in the gate channels. This phenomenon was also closely related to the possible structural deformation at the gate. Formation of higher lipid density state at the gate region induced by the compression was thought to be responsible to the reduced penetration ability of bulky TR-DHPE molecules into the nano-gates, which resulted in the gradual decrease in TR-DHPE concentration in the spreading bilayer. [Copyright &y& Elsevier]
Copyright of Electrochimica Acta is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 32645011
AccessLevel: 6
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PubTypeId: academicJournal
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  Data: Observation of self-spreading lipid bilayer on hydrophilic surface with a periodic array of metallic nano-gate
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  Data: <searchLink fieldCode="AR" term="%22Nabika%2C+H%2E%22">Nabika, H.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Takimoto%2C+B%2E%22">Takimoto, B.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Iijima%2C+N%2E%22">Iijima, N.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Murakoshi%2C+K%2E%22">Murakoshi, K.</searchLink><i> kei@sci.hokudai.ac.jp</i>
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  Data: <searchLink fieldCode="JN" term="%22Electrochimica+Acta%22">Electrochimica Acta</searchLink>. Sep2008, Vol. 53 Issue 21, p6278-6283. 6p.
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  Data: <searchLink fieldCode="DE" term="%22Electron+optics%22">Electron optics</searchLink><br /><searchLink fieldCode="DE" term="%22Particles+%28Nuclear+physics%29%22">Particles (Nuclear physics)</searchLink><br /><searchLink fieldCode="DE" term="%22Electron+beams%22">Electron beams</searchLink><br /><searchLink fieldCode="DE" term="%22Electron+beam+lithography%22">Electron beam lithography</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Abstract: We have fabricated micro-channel with a periodic array of nano-gate with a width of 500 and 100nm by electron beam lithography. The effect of nano-gates on the self-spreading of egg-PC bilayer doped with dye-labeled lipid TR-DHPE was investigated using fluorescence microscope. Compared with the control channel without the nano-gate, the self-spreading velocity was suppressed due to the presence of nano-gate. The quantitative analysis of the spreading behavior suggests that the self-spreading bilayer was compressed during passing through the gate. This structural deformation imposed an energetic barrier for the self-spreading, leading to reduction of the spreading velocity. Furthermore, the number of TR-DHPE molecule in the spreading bilayer was apparently decreased during spreading in the gate channels. This phenomenon was also closely related to the possible structural deformation at the gate. Formation of higher lipid density state at the gate region induced by the compression was thought to be responsible to the reduced penetration ability of bulky TR-DHPE molecules into the nano-gates, which resulted in the gradual decrease in TR-DHPE concentration in the spreading bilayer. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Electrochimica Acta is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1016/j.electacta.2008.01.030
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      – Code: eng
        Text: English
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        PageCount: 6
        StartPage: 6278
    Subjects:
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        Type: general
      – SubjectFull: Particles (Nuclear physics)
        Type: general
      – SubjectFull: Electron beams
        Type: general
      – SubjectFull: Electron beam lithography
        Type: general
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      – TitleFull: Observation of self-spreading lipid bilayer on hydrophilic surface with a periodic array of metallic nano-gate
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            NameFull: Iijima, N.
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            – D: 01
              M: 09
              Text: Sep2008
              Type: published
              Y: 2008
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