Soft biological samples
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Soft biological samples
Shear force
Optische Nahfeldmethoden zur Erkennung einzelner Moleküle


Near-field microscopy on soft biological samples in water



Topography and fluorescence images of a growth cone of nerve cells of the hippocampus of rat. The samples are fluorescence labeled with DIC18, showing an absorption peak at 540 nm and an emission maximum at 570 nm. The sample was excited with an argon ion laser (l = 514 nm) at a power of about 5nW, as measured in the far field of the tip.(Samples courtesy of P. Fromherz, MPI Martinsried)


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Copyright © 1998 Experimentelle Physik, Universität Ulm
Last modified: 30. Juli 1999