See Also: Scatchard plot(medicine)
Niepce, (Joseph-) Nicephore(encyclopedia)
Scatchard(dictionary)
Scatchard, George(medicine)
Plot(medicine)
plot(dictionary)
Plot(money)
Ramachandran plot(medicine)
Plot (as used in expressions)(encyclopedia)
July Plot(encyclopedia)

Niepce, (Joseph-) Nicephore (sh) and Scatchard plot (medicine)


Niepce, (Joseph-) Nicephore (sh)




born March 7, 1765, Chalon-sur-Sa?ne, France
died July 5, 1833, Chalon-sur-Sa?ne

French inventor.

In 1807 Niepce and his brother invented an internal-combustion engine (fueled with lycopodium powder). In 1813 he began experiments with lithography. He is best remembered for his experiments with Photography, which he called heliography. In 1826-27, using a camera, he made a view from his workroom window on a pewter plate
the first permanently fixed image from Nature. In 1829 he began a partnership with L.-J.-M. Daguerre to perfect and exploit heliography, but he died before they had achieved any further advance.


Scatchard plot (medicine)


Scatchard plot


A method for analysing data for freely reversible ligand/receptor binding interactions. The graphical plot is: Bound ligand/Free ligand) against (Bound ligand), the slope gives the negative reciprocal of the binding affinity, the intercept on the x axis the number of receptors (Bound/Free becomes zero at infinite ligand concentration). The Scatchard plot is preferable to the Eadie Hoffstee plot for binding data because it is more dependent upon the values at high ligand concentration which will be the most reliable values. A nonlinear Scatchard plot is often taken to indicate heterogeneity of receptors, although this is not the only explanation possible.