Figure 3

Measured end-to-end distance plotted as log r versus log shear rate. Data for 800kD 4-BCMU²³ has the fitted equation: log r = −0.0046 log(\(\dot{\gamma }\,\)) + 1.7 with the coefficient of determination: R² = 0.23. Data for 49kD FRET tagged PMMA in Couette flow shows the fitted equation: log r = −0.072 log(\(\dot{\gamma }\,\)) + 0.69 with R² = 0.88. The lines of best fit yield an inverse 0.07 +/− 0.02 power of the radius with shear rate for the PMMA and 0.0042 +/− 0.002 for the 4-BCMU. The error bars are approximately the size of the symbols. The error associated with each point is: ~5% in the shear rate due to the radius/gap ratio of the Couette cell. For the 4-BCMU the un-sheared size of the chain is 49 +/− 1 nm and for PMMA the size is 4 +/− 0.1 nm. Taken from ref.²⁵, Fig. 1.