Journal: ACS Omega
Article Title: In Situ Monitoring of Linear RGD-Peptide Bioconjugation with Nanoscale Polymer Brushes
doi: 10.1021/acsomega.6b00450
Figure Lengend Snippet: In situ ATR-FTIR spectra of GRGDS bioconjugation (0.1 mg/mL) onto polymer brushes. (a) GRGDS covalent binding to PAA brush; (b) GRGDS covalent binding to PNIPAAm–PAA brush with a ratio of 80:20. The experiment was performed in five discrete steps. Step I: swelling of the brush in MES; step II: EDC/NHS activation; step III: GRGDS conjugation; step IV: washing with PBS; and step V: quenching with acetate buffer at pH 4.0. The spectra were dynamically recorded over the entire time frame of each experimental step with a time step of t = 5 min. Curves were shifted along the vertical axis for better display.
Article Snippet: Fibronectin active fragment Gly-Arg-Gly-Asp-Ser (GRGDS) was obtained from Peptides International Inc. (Louisville, KY and Canada).
Techniques: In Situ, Polymer, Binding Assay, Activation Assay, Conjugation Assay