Applicability of TOF-SIMS for the assessment of lipid composition of cell membrane structures


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Resumo

Langmuir–Blodgett lipid films and plasma membranes of glioma cells were analyzed using timeof-flight secondary ion mass spectrometry (TOF-SIMS). Bi3+ primary ion beam was determined to be most efficient in various experimental setups. TOF-SIMS was shown to be applicable for a quantitative analysis of model lipid structures, as well as plasma membranes of glioma cells U87MG in vitro. A combination of atomic-force microscopy and scanning electron microscopy yielded the depth resolution of ~10–20 nm for cell surface scanning by primary ion beam.

Sobre autores

A. Gulin

Semenov Institute of Chemical Physics; Department of Chemistry

Autor responsável pela correspondência
Email: aleksandr.gulin@phystech.edu
Rússia, ul. Kosygina 4, Moscow, 119991; Leninskiye Gory 1, build. 3, Moscow, 119991

M. Pavlyukov

Shemyakin–Ovchinnikov Institute of Bioorganic Chemistry

Email: aleksandr.gulin@phystech.edu
Rússia, ul. Miklukho-Maklaya 16/10, Moscow, 117997

S. Gusev

Federal Medical & Biological Agency SRI of Physical-Chemical Medicine

Email: aleksandr.gulin@phystech.edu
Rússia, ul. Malaya Pirogovskaya 1a, Moscow, 119992

Yu. Malakhova

National Research Centre “Kurchatov Institute”; Institute of Fine Chemical Technology

Email: aleksandr.gulin@phystech.edu
Rússia, pl. Akademika Kurchatova 1, Moscow, 123182; pr. Vernadskogo 86, Moscow, 119571

A. Buzin

Enikolopov Institute of Synthetic Polymer Materials

Email: aleksandr.gulin@phystech.edu
Rússia, ul. Profsoyuznaya 70, Moscow, 117393

S. Chvalun

National Research Centre “Kurchatov Institute”; Enikolopov Institute of Synthetic Polymer Materials

Email: aleksandr.gulin@phystech.edu
Rússia, pl. Akademika Kurchatova 1, Moscow, 123182; ul. Profsoyuznaya 70, Moscow, 117393

K. Aldarov

Federal Medical & Biological Agency SRI of Physical-Chemical Medicine

Email: aleksandr.gulin@phystech.edu
Rússia, ul. Malaya Pirogovskaya 1a, Moscow, 119992

D. Klinov

Federal Medical & Biological Agency SRI of Physical-Chemical Medicine

Email: aleksandr.gulin@phystech.edu
Rússia, ul. Malaya Pirogovskaya 1a, Moscow, 119992

S. Gularyan

Semenov Institute of Chemical Physics

Email: aleksandr.gulin@phystech.edu
Rússia, ul. Kosygina 4, Moscow, 119991

V. Nadtochenko

Semenov Institute of Chemical Physics; Department of Chemistry

Email: aleksandr.gulin@phystech.edu
Rússia, ul. Kosygina 4, Moscow, 119991; Leninskiye Gory 1, build. 3, Moscow, 119991

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