직/편성물 염색

critical slowing down in lipid bilayer membrane studied by a differential ultrasonic resonator

  • 출판일1999.03
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 285
a differential ultrasonic resonator was developed for the measurements of ultrasonic velocity as well as absorption in dilute aqueous suspensions of biological materials. the accuracy of the resonator was improved by analyzing the resonance peak shape with the aid of a microcomputer: the accuracy of 1*10/sup -5/ for velocity and 5*10/sup -5/ for absorption per wavelength was obtained in the frequency range between 0.8 and 8 mhz. an aqueous suspension of multilamellar lipid bilayers was measured by this apparatus, and a marked slowing down of the relaxation time was observed in the vicinity of a gel-to-liquid crystal phase transition
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