Subdiffraction-Limit Two-Photon Fluorescence Microscopy for GFP-Tagged Cell Imaging. Li, Q., Wu, S., & Chou, K. C. Biophysical Journal, 97(12):3224–3228, December, 2009.
Subdiffraction-Limit Two-Photon Fluorescence Microscopy for GFP-Tagged Cell Imaging [link]Paper  doi  abstract   bibtex   
We report applications of two-photon excitation fluorescence (2PEF) microscopy with subdiffraction-limit resolution for green-fluorescent-protein-tagged cell imaging. The microscope integrates 2PEF microscopy and stimulated emission depletion microscopy in one microscope that has the benefits of both techniques: intrinsic three-dimensional resolution, confined photobleaching, and subdiffraction-limit resolution. The subdiffraction-limit resolution was demonstrated by resolving green-fluorescent-protein-tagged caveolar vesicles located within a distance shorter than the diffraction limit of a regular 2PEF microscope, which is ~250 nm even with the best optics. The full width at half-maximum of the effective point-spread function for the 2PEF microscope was estimated to be ~54 nm.
@Article{Li2009,
  author   = {Li, Qifeng and Wu, Sherry and Chou, Keng C.},
  journal  = {Biophysical Journal},
  title    = {Subdiffraction-{Limit} {Two}-{Photon} {Fluorescence} {Microscopy} for {GFP}-{Tagged} {Cell} {Imaging}},
  year     = {2009},
  issn     = {0006-3495},
  month    = dec,
  number   = {12},
  pages    = {3224--3228},
  volume   = {97},
  abstract = {We report applications of two-photon excitation fluorescence (2PEF) microscopy with subdiffraction-limit resolution for green-fluorescent-protein-tagged cell imaging. The microscope integrates 2PEF microscopy and stimulated emission depletion microscopy in one microscope that has the benefits of both techniques: intrinsic three-dimensional resolution, confined photobleaching, and subdiffraction-limit resolution. The subdiffraction-limit resolution was demonstrated by resolving green-fluorescent-protein-tagged caveolar vesicles located within a distance shorter than the diffraction limit of a regular 2PEF microscope, which is ~250 nm even with the best optics. The full width at half-maximum of the effective point-spread function for the 2PEF microscope was estimated to be ~54 nm.},
  doi      = {10.1016/j.bpj.2009.09.038},
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  language = {en},
  url      = {http://www.sciencedirect.com/science/article/pii/S0006349509015227},
  urldate  = {2020-06-19TZ},
}

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