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Reinforcement of polymeric nanofibers by ferritin nanoparticles
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Image of FIG. 1.
FIG. 1.

TEM images of PVA/ferritin nanofibers with a diameter of about deposited on a carbon coating grid: (a) a PVA/ferritin nanofiber containing uniformly dispersed ferritin and (b) a high magnification image of ferritin incorporated homogeneously within the polymeric matrix. The arrows indicate the core diameter of approximately .

Image of FIG. 2.
FIG. 2.

(Color) (a) An AFM contact mode image of PVA and PVA/ferritin nanofibers oriented linearly on an AFM calibration grating with -wide periodic trenches, with the inset showing an AFM image taken at high magnification. The height profiles of a nanofiber taken along the direction of the dashed and solid lines shown in (a) are shown in (b) and (c), respectively.

Image of FIG. 3.
FIG. 3.

(a) A schematic diagram of a nanofiber deflected by an AFM tip. (b) The force-displacement curves obtained on an AFM calibration grating as a reference (dashed line) and at the midpoint of a suspended nanofiber (solid line). The deflection of the nanofiber signifies the difference between the nanofiber and the reference curve.


Generic image for table
Table I.

The elastic modulus of PVA and PVA/ferritin nanofibers for . ( is the width of the , is the diameter of the measured nanofiber, and is the elastic modulus.)


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Reinforcement of polymeric nanofibers by ferritin nanoparticles