A simple, dependable method has been described for counting particles of chlymydiae in partially purified suspensions. A latex-particle suspension of known concentration is used as a standard. The ...

Researchers performing cryo-EM experiments can acquire the training to make their own cryo-EM and negative-stain grids, and collect and process their own high-resolution data. We also offer sample ...

NEGATIVE staining has become widely accepted as a means of visualizing macromolecular structures under the electron microscope 1,2. Its advantages lie in its simplicity and the high contrast which it ...

Three patients who were diagnosed with rheumatoid arthritis (RA) and being treated with antitumor necrosis factor (anti-TNF) therapy presented with septic monoarthritis confirmed by joint aspiration.

Gram-positive bacteria show blue or purple after Gram-staining in a laboratory test. They have thick cell walls. Gram-negative bacteria show pink or red on staining and have thin walls. They release ...

Scanning Electron Microscopes (SEM) are powerful magnification tools that utilize focused beams of electrons to obtain detailed topographical, morphological and compositional data. In the past samples ...