Editorial
Copyright ©2011 Baishideng Publishing Group Co.
World J Gastroenterol. Oct 28, 2011; 17(40): 4456-4460
Published online Oct 28, 2011. doi: 10.3748/wjg.v17.i40.4456
Table 1 Comparison of two-photon microscopy with confocal microscopy
Confocal microscopyTwo-photon microscopy
Excitation wavelengthShort (ultraviolet light)Long (infra-red light)
Tissue imaging depthAbout 50-100 μmAbout 400-1000 μm
Spatial resolutionnm (3D-resolution with pinhole aperture )nm (3D-resolution with inherent optical sectioning)
Photodamage and photobleachingHighLow