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Opportunity at National Institute of Standards and Technology (NIST)

Characterization of Complex Colloids via Analytical Ultracentrifugation

Location

Material Measurement Laboratory, Materials Science and Engineering Division

RO# Location
50.64.21.B7793 Gaithersburg, MD

Please note: This Agency only participates in the February and August reviews.

Advisers

Name E-mail Phone
Fagan, Jeffrey Alan jeffrey.fagan@nist.gov 301.975.6740

Description

With the development of nanoparticle and colloidal technologies that include processing in the dispersed phase (or are fundamentally liquid phase processes), there is a need for measurement methods and applications of theory to adequately describe distributions of particles in complex fluid environments. Our goal will be to develop analytical ultracentrifugation methods, with other polymer and colloidal science tools, to characterize particle or polymer distributions that occur in complex environments. Possible ideas for projects include characterization of Pickering (particle stabilized) emulsions for particle-interface adhesion strength, MW characterization of extended or structured polymers for organic electronics in organic solvents, characterization of interfacial coatings and interparticle interactions between single-wall carbon nanotubes in complex environments such as depleting polymers, or particle transport in nearly jammed suspensions.

 

References

Mace CR, et al: Journal of American Chemical Society 134 (22): 9094, 2012

Khripin CY, et al: ACS Nano 5(10): 8258, 2011

 

Keywords:
Colloid; Polymer; Characterization; Analytical ultracentrifugation; Emulsion; Complex fluid; Ultracentrifugation; Nanotechnology;

Eligibility

Citizenship:  Open to U.S. citizens
Level:  Open to Postdoctoral applicants
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