Science Lab

Benvenuti nel portale delle conoscenze di Leica Microsystems. Troverete materiale didattico e di ricerca scientifica sul tema della microscopia. Il portale supporta i principianti, i professionisti esperti e gli scienziati nel loro lavoro quotidiano e negli esperimenti. Esplorate i tutorial interattivi e le note applicative, scoprite le basi della microscopia e le tecnologie di punta. Entrate a far parte della comunità di Science Lab e condividete la vostra esperienza.

Video Tutorials: Filling and Assembling of Different Carriers for High-Pressure Freezing

High pressure freezing (HPF) is a cryo-fixation method primarily for biological samples, but also for a variety of non-biological materials. It is a technique that yields optimal preservation in many…

FusionOptics in Neurosurgery and Ophthalmology – for a Larger 3D Area in Focus

Neurosurgeons and ophthalmologists deal with delicate structures, deep or narow cavities and tiny structures with vitally important functions. A clear, three-dimensional view on the surgical field is…

Brief Introduction to Freeze Fracture and Etching

Freeze fracture describes the technique of breaking a frozen specimen to reveal internal structures. Freeze etching is the sublimation of surface ice under vacuum to reveal details of the fractured…

Brief Introduction to Specimen Trimming

Before ultrathin sectioning a sample with an ultramicrotome it has to be pre-prepared. For this pre-preparation, special attention must be paid to the sample size (size of the section), location of…

Glycerol Spraying/Platinum Low Angle Rotary Shadowing of DNA with the Leica EM ACE600 e-beam

Glycerol spraying/low angle rotary shadowing (Aebi and Baschong, 2006) is a preparation technique used in biology to visualize structures yielding insufficent contrast with other techniques, due to…

125 Years of Comparison Microscopy

To be able to optically compare two objects with scientific accuracy, it must be possible to view them at the same time. This is particularly true for comparing small objects that can only be…

Sample Preparation for GSDIM Localization Microscopy – Protocols and Tips

The widefield super-resolution technique GSDIM (Ground State Depletion followed by individual molecule return) is a localization microscopy technique that is capable of resolving details as small as…

Brief Introduction to Freeze Substitution

Freeze-substitution is a process of dehydration, performed at temperatures low enough to avoid the formation of ice crystals and to circumvent the damaging effects observed after ambient-temperature…

Acousto Optics in True Confocal Spectral Microscope Systems

Acousto-optical elements have successfully replaced planar filters in many positions. The white confocal, regarded as the fully spectrally tunable confocal microscope, was not possible without this…