منابع مشابه
Nonlinear vibrational microscopy applied to lipid biology.
Optical microscopy is an indispensable tool that is driving progress in cell biology. It still is the only practical means of obtaining spatial and temporal resolution within living cells and tissues. Most prominently, fluorescence microscopy based on dye-labeling or protein fusions with fluorescent tags is a highly sensitive and specific method of visualizing biomolecules within sub-cellular s...
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The use of chemically modified atomic force microscopy (AFM) probes allows us to measure the surface charges of supported planar lipid bilayers with high sensitivity through the force spectroscopy operation mode. By controlling the chemistry of the tip, we can perform a classical analytical chemistry titration where the titration agent is a weak acid (attached to the AFM tip) with the particula...
متن کاملTransmission Electron Microscopy of Lipid Vesicles in Liquid Cells
Liquid cell transmission electron microscopy (TEM) shows promise for enabling nanometer-scale imaging of fluid-hydrated biological material by enclosing specimens within windowed devices [1]. However, the thickness of the liquid cell reduces the signal-to-noise ratios of acquired images, a particular problem for researchers imaging biological specimens. Thus investigators typically image biolog...
متن کاملNon-invasive lipid measurement in living insects using NMR microscopy.
Nuclear magnetic resonance (NMR) microscopy allows us to image and quantify the distribution of NMR-active nuclei in living specimens. Using high-field NMR microscopy at a magnetic field strength of 14.1 T and strong gradients up to 3 T m(-1), we show that separation of fat and water nuclear resonances in living insects can be achieved. In contrast to destructive conventional photometric and ma...
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The atomic force microscope (AFM) can image individual molecules by raster-scanning a sharp tip over a surface. In this paper we present molecular-resolution images of immunoglobulin M (IgM) and of ultraviolet light-polymerized films of the lipid dimethyl-bis(pentacosadiynoyloxyethyl) ammonium bromide ("BRONCO"). The polar head groups of individual lipid molecules can be resolved on the surface...
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ژورنال
عنوان ژورنال: Journal of Cell Biology
سال: 2006
ISSN: 1540-8140,0021-9525
DOI: 10.1083/jcb.1752rr3