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Characterizing Viscoelastic Properties of Polyacrylamide Gels

By studying the mechanical properties of polyacrylamide gels, the hope is to generate a range of consistent stiffness values for two gel concentrations. Thus far, there has been limited scientific research aimed at detailing the various mechanical parameters which polyacrylamide shares with natural soft tissues.

Characterizing Viscoelastic Properties of Polyacrylamide Gels

Characterizing Viscoelastic Properties of Polyacrylamide Gels. Clear variation between localized and bulk properties. Techniques studying local (AFM, Ball Indentation) yielded higher stiffness values to those measuring bulk. Atomic Force Microscopy is more precise with the stiffer gels then

Viscoelastic properties of polyacrylamide solutions from

Summary. The viscoelastic properties of polyacrylamide/Cr (III) hydrogels were characterized with the help of oscillatory shear rheometer. The serrated-plate geometry rather than the cone-plate geometry was used in order to avoid the slip effect.

Apr 27, 2006 · Despite its common use in cell culture studies, polyacrylamide gel's mechanical properties remain unclear. To characterize this gel fully, atomic force microscopy, uniaxial testing, rheology, and b...

Altogether, we can investigate cell mechanosensing on additively manufactured PAA substrates of varying viscoelastic properties by interrogating basic cell traction response. It would provide us with more accurate, reliable, and physiologically relevant information.

Worcester Polytechnic Institute (WPI)

Worcester Polytechnic Institute (WPI)

Polyacrylamide degradation and its implications in - Nature

In this paper, the viscoelastic properties of partially hydrolyzed polyacrylamide (HPAM) solution have been investigated. Results show that the viscoelastic properties of HPAM increase with HPAM concentration increasing, and decrease with the increase of sodium dodecyl sulfate (SDS). Meanwhile, adding NaCl can destroy the viscoelastic properties.

Characterization of viscoelastic properties of polyacrylamide

The viscoelastic properties of polyacrylamide/Cr(III) hydrogels were characterized with the help of oscillatory shear rheometer. The serrated-plate geometry rather than the cone-plate geometry was used in order to avoid the slip effect. The dynamic storage modulus (G') increased with increasing polyacrylamide and/or Cr(III) concentrations. The mean molecular weight of the chains adjoining

Viscoelastic properties of polyacrylamide solutions from

Polymer solutions have very important applications in the enhanced oil recovery due to their unique viscoelastic properties increasing microscale displacement efficiency. In this paper, the viscoelastic properties of partially hydrolyzed polyacrylamide (HPAM) solution have been investigated. Results show that the viscoelastic properties of HPAM increase with HPAM concentration increasing, and

Characterization of viscoelastic properties of polyacrylamide

The viscoelastic properties of polyacrylamide/Cr(III) hydrogels were characterized with the help of oscillatory shear rheometer. The serrated-plate geometry rather than the cone-plate geometry was used in order to avoid the slip effect. The dynamic storage modulus (G') increased with increasing polyacrylamide and/or Cr(III) concentrations. The mean molecular weight of the chains adjoining

A novel method to make viscoelastic polyacrylamide gels for

Polymer solutions have very important applications in the enhanced oil recovery due to their unique viscoelastic properties increasing microscale displacement efficiency. In this paper, the viscoelastic properties of partially hydrolyzed polyacrylamide (HPAM) solution have been investigated. Results show that the viscoelastic properties of HPAM increase with HPAM concentration increasing, and

A Novel Method to Make Polyacrylamide Gels with Mechanical

bulk viscoelastic properties of the whole fiber. In order to accurately measure macroscopic mechanical pro-perties of fibers several di?erent methods have been developed over the years. For example, when characterizing the properties of humanhair,di?erent testsbased ontension,bendingandtorsion