High-resolution x-ray diffraction microscopy of specifically labeled yeast cells
Journal Article
·
· Proceedings of the National Academy of Sciences of the United States of America
- Stony Brook Univ., Stony Brook, NY (United States); Argonne National Laboratory
- Stony Brook Univ., Stony Brook, NY (United States)
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). Advanced Light Source
- Northwestern Univ., Evanston, IL (United States)
- Stony Brook Univ., Stony Brook, NY (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). Advanced Light Source; Argonne National Laboratory (ANL), Argonne, IL (United States). Advanced Photon Source
X-ray diffraction microscopy complements other x-ray microscopy methods by being free of lens-imposed radiation dose and resolution limits, and it allows for high-resolution imaging of biological specimens too thick to be viewed by electron microscopy. We report here the highest resolution (11-13 nm) x-ray diffraction micrograph of biological specimens, and a demonstration of molecular-specific gold labeling at different depths within cells via through-focus propagation of the reconstructed wavefield. The lectin concanavalin A conjugated to colloidal gold particles was used to label the α-mannan sugar in the cell wall of the yeast Saccharomyces cerevisiae. Cells were plunge-frozen in liquid ethane and freeze-dried, after which they were imaged whole using x-ray diffraction microscopy at 750 eV photon energy.
- Research Organization:
- Stony Brook Univ., Stony Brook, NY (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
- Grant/Contract Number:
- FG02-04ER46128
- OSTI ID:
- 1164150
- Journal Information:
- Proceedings of the National Academy of Sciences of the United States of America, Journal Name: Proceedings of the National Academy of Sciences of the United States of America Journal Issue: 16 Vol. 107; ISSN 0027-8424
- Publisher:
- National Academy of SciencesCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Soft X-Ray Diffraction Microscopy of a Frozen Hydrated Yeast Cell
Soft X-Ray Diffraction Microscopy of a Frozen Hydrated Yeast Cell
Biological imaging by soft x-ray diffraction microscopy
Journal Article
·
Sat Oct 31 20:00:00 EDT 2009
· Physical Review Letters
·
OSTI ID:1164142
Soft X-Ray Diffraction Microscopy of a Frozen Hydrated Yeast Cell
Journal Article
·
Thu Nov 05 23:00:00 EST 2009
· Physical Review Letters
·
OSTI ID:21370816
Biological imaging by soft x-ray diffraction microscopy
Journal Article
·
Mon Oct 24 20:00:00 EDT 2005
· Proceedings of the National Academy of Sciences of the United States of America
·
OSTI ID:1164139