قارن الطرق

	تحليل مخطط سكاتشارد	الفيزيولوجيا الكهربائية بتقنية الالتقاط الرقعي (Patch-Clamp Electrophysiology)	تحليل شيلد
المجال	علم الأدوية	علم الأدوية	علم الأدوية
العائلة	Process / pipeline	Process / pipeline	Process / pipeline
سنة النشأة	1949	1976	1947
صاحب الطريقة	George Scatchard	Erwin Neher and Bert Sakmann	Henry Schild
النوع	binding affinity measurement	ion channel screening	antagonism quantification
المصدر التأسيسي	Scatchard, G. (1949). The attractions of proteins for small molecules and ions. Annals of the New York Academy of Sciences, 51(4), 660-672.	Neher, E., & Sakmann, B. (1976). Single-channel currents recorded from membrane of denervated frog muscle fibres. Nature, 260(5554), 799-802.	Schild, H. O. (1947). pA, a new scale for the measurement of drug antagonism. Journal of Physiology, 106(3), 337-357.
الأسماء البديلة	Scatchard plot, binding analysis, Kd determination	patch clamp, whole-cell recording, ion channel assay	Schild plot, pA2
ذات صلة	3	3	3
الملخص	Scatchard analysis is a graphical method for determining ligand-receptor binding affinity (Kd) and binding capacity (Bmax) from binding data. Developed by George Scatchard in 1949, the Scatchard plot linearizes hyperbolic binding curves, enabling visual detection of multiple binding sites and quantitative parameter estimation.	Patch-clamp electrophysiology is a technique for measuring ionic currents through ion channels in cell membranes, developed by Neher and Sakmann in 1976. It enables direct observation of single-channel and whole-cell currents at millisecond resolution, making it essential for characterizing drug effects on ion channels and cardiac safety assessment.	Schild analysis is a quantitative method for characterizing competitive receptor antagonism developed by Henry Schild in 1947. It uses dose-response curves in the presence and absence of antagonist to estimate the antagonist affinity constant (pA2), enabling standardized comparison of antagonist potency across drugs and experimental systems.