positioned Protocols

Category: Microscopy Protocols: Optical Microscopy Protocols

Near-field scanning optical microscopy can achieve spatial resolution performance beyond the classical diffraction limit by employing a sub-wavelength light source or detector positioned in close proximity to a specimen. Such a sub-wavelength source usually consists of an aperture at the end of a tapered probe, which functions basically as a wave guide. Includes info.: Fiber Probe Fabrication; Pulling Method; Meniscus Etching; Selective Etching; Apertureless and Alternative Probe Designs etc. - [Read Near-Field Scanning Optical Microscopy: NSOM Probes]

Category: Antibody Protocols: Antibody Production Protocols

Polyclonal antibodies can be isolated from animal plasma or serum using the procedure described in this protocol. The Gradiflow BF400 instrument has two liquid streams that circulate through a separation cartridge positioned between two electrodes and composed of three hydrogel polyacrylamide membranes, which define the channels for the two sample streams. The central membrane forms a physical barrier between the two streams. - [Read Preparation of Polyclonal Antibodies from Plasma or Serum Using the Gradiflow BF400]