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Fryerja dhe Degradimi×Lirimi i BMP×Analiza Mekanike Dinamike×GPC/SEC×
FushaBiomaterialetBiomaterialetBiomaterialetBiomaterialet
FamiljaProcess / pipelineProcess / pipelineProcess / pipelineProcess / pipeline
Viti i origjinës1960196519601962
KrijuesiWichterle and LimMarshall UristFerry and SchwarzlMoore and Debye
LlojiKinetic assayKinetic release assayRheological characterizationChromatographic analysis
Burimi themeluesWichterle, O., & Lim, D. (1960). Hydrophilic gels for biological use. Nature, 185(4706), 117-118. DOI ↗Urist, M. R. (1965). Bone: formation by autoinduction. Science, 150(3698), 893-899. DOI ↗Menard, K. P. (2008). Dynamic mechanical analysis: a practical introduction (2nd ed.). CRC Press. link ↗Striegel, A. M., Yau, W. W., Kirkland, J. J., & Bly, D. D. (2009). Modern size-exclusion liquid chromatography: practice and theory. John Wiley & Sons. link ↗
Emërtime të tjerahydrogel swelling, polymer degradation, mass loss assayBMP release kinetics, BMP elution profile, growth factor release assayDMA, rheological analysis, viscoelastic testingsize exclusion chromatography, molecular weight determination, polymer characterization
Të lidhura4433
PërmbledhjaThe swelling and degradation assay measures how biomaterial scaffolds absorb water (swelling) and lose mass over time due to degradation. Developed by Wichterle and Lim in 1960 for hydrogels, the assay is fundamental for characterizing hydrogels, synthetic polymers, and composite scaffolds intended for tissue engineering. The assay provides quantitative data on swelling kinetics (equilibrium water content, swelling ratio), degradation kinetics (mass loss rate, half-life), and mechanisms of degradation (chain scission, enzymatic breakdown).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.Dynamic mechanical analysis (DMA) measures the viscoelastic properties of materials—their elastic stiffness and viscous damping—by applying a sinusoidal stress or strain and measuring the phase lag and amplitude of the material's response. Developed from rheology principles in the 1960s and formalized by Ferry, Schwarzl, and others, DMA provides quantitative measures of how polymeric biomaterials respond to time-dependent and frequency-dependent mechanical stimuli. Key outputs include the storage modulus (elastic component), loss modulus (viscous component), and loss tangent (tan δ), which together characterize the material's mechanical behavior across temperature and frequency ranges.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.
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ScholarGateKrahasoni metodat: Swelling and Degradation · BMP Release · Dynamic Mechanical Analysis · GPC/SEC. Marrë më 2026-06-19 nga https://scholargate.app/sq/compare