方法对比

	骨形态发生蛋白（BMP）释放测定	GPC/SEC
领域	生物材料	生物材料
方法族	Process / pipeline	Process / pipeline
起源年份	1965	1962
提出者	Marshall Urist	Moore and Debye
类型	Kinetic release assay	Chromatographic analysis
开创性文献	Urist, M. R. (1965). Bone: formation by autoinduction. Science, 150(3698), 893-899.	Striegel, A. M., Yau, W. W., Kirkland, J. J., & Bly, D. D. (2009). Modern size-exclusion liquid chromatography: practice and theory. John Wiley & Sons.
别名	BMP release kinetics, BMP elution profile, growth factor release assay	size exclusion chromatography, molecular weight determination, polymer characterization
相关	4	3
摘要	The bone morphogenetic protein (BMP) release assay measures the kinetics and amount of BMP elution from a biomaterial carrier over time. BMP-2, BMP-6, BMP-7, and BMP-9 are potent osteoinductive growth factors discovered by Marshall Urist in 1965 that trigger bone and cartilage formation. When loaded into scaffolds, hydrogels, or implants, BMPs must be released in a controlled manner to maximize biological effect while minimizing systemic exposure. The release assay quantifies how much BMP is present in the surrounding medium at defined timepoints, enabling optimization of carrier materials and release profiles for bone regeneration and fracture healing applications.	Gel permeation chromatography (GPC), also known as size exclusion chromatography (SEC), is an analytical technique for determining the molecular weight distribution (MWD) and average molecular weight (Mw, Mn) of polymers. The method separates polymer molecules by their hydrodynamic size as they pass through a porous chromatography column: larger molecules elute first (excluded from pores), while smaller molecules are retained longer. Developed by Moore and colleagues in the 1960s, GPC/SEC is now the standard method for characterizing polymer chains, assessing polymer degradation over time, and verifying batch consistency in biomaterial production.