title: Holographic characterization of colloidal fractal aggregates.
abstract: In-line holographic microscopy images of micrometer-scale fractal aggregates can be interpreted with an effective-sphere model to obtain each aggregate's size and the population-averaged fractal dimension. We demonstrate this technique experimentally using model fractal clusters of polystyrene nanoparticles and fractal protein aggregates composed of bovine serum albumin and bovine pancreas insulin.
authors.affiliation: Department of Physics and Center for Soft Matter Research, New York University, New York, NY 10003, USA. david.grier@nyu.edu.
authors.forename: Chen
authors.initials: C
authors.lastname: Wang
authors.affiliation: Spheryx, Inc., 333 E. 38th St., New York, NY 10016, USA.
authors.forename: Fook Chiong
authors.initials: FC
authors.lastname: Cheong
authors.affiliation: Spheryx, Inc., 333 E. 38th St., New York, NY 10016, USA.
authors.forename: David B
authors.initials: DB
authors.lastname: Ruffner
authors.affiliation: Department of Chemistry and Molecular Design Institute, New York University, New York, NY 10003, USA.
authors.forename: Xiao
authors.initials: X
authors.lastname: Zhong
authors.affiliation: Department of Chemistry and Molecular Design Institute, New York University, New York, NY 10003, USA.
authors.forename: Michael D
authors.initials: MD
authors.lastname: Ward
authors.affiliation: Department of Physics and Center for Soft Matter Research, New York University, New York, NY 10003, USA. david.grier@nyu.edu.
authors.forename: David G
authors.identifier: http://orcid.org/0000-0002-4382-5139
authors.initials: DG
authors.lastname: Grier