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Design And Production Of A Hydrogel Forming Polypeptide: Engaging High School Students In Protein Design, James K. Deyling
Design And Production Of A Hydrogel Forming Polypeptide: Engaging High School Students In Protein Design, James K. Deyling
ETD Archive
Bioinks are a class of hydrogel that have the potential to be the ink used in the creation of printed organs, connective tissue, and other important structures within the body. One class of material that may be a suitable bioink hydrogel is elastin-like polypeptides (ELPs), which are synthetic biopolymers inspired by the naturally existing connective tissue elastin. ELPs consist of a repeat pentapeptide sequence (GXGVP)n, where X is any of the 20 naturally existing amino acids other than proline. These biomolecules are capable of exhibiting environmental responsiveness when exposed to certain stimulus such as salt concentration, temperature, and pH, depending …
Time And Temperature Dependent Surface Tension Measurements Of Responsive Protein-Based Polymer Surfactant Solutions, Hakan Celik
Time And Temperature Dependent Surface Tension Measurements Of Responsive Protein-Based Polymer Surfactant Solutions, Hakan Celik
ETD Archive
A three-armed star elastin-like polypeptide (ELP-foldon) has thermoreversible character which exhibits phase separation above a transition temperature (Tt) in physiologic salt concentrations. At lower salt concentration, the ELP-foldon behaves like a thermoresponsive surfactant, exhibiting micelle formation above its Tt. The purpose of this study is characterize the surfactant behavior of the ELP-foldon at air-liquid interface by measuring the surface tension. The surface tension is measured as a function of time for different ELP concentrations from 10 nM to 50 ℗æM and over range of temperatures from 25 to 35 ℗¿ using the axisymmetric drop shape analysis (ADSA). The ADSA is …