title: Technical note: characterizing individual milk fat globules with holographic video microscopy.
abstract: We used in-line holography to create images of individual milk fat globules in diluted samples of milk. Analyzing these images with the exact Lorenz-Mie light scattering theory then yields the droplets' radii with nanometer resolution and their refractive indexes to within one part in a thousand. This procedure rapidly and directly characterizes both the quantity and quality of fat in milk.
authors.affiliation: Department of Physics and Center for Soft Matter Research, New York University, New York, NY 10003, USA.
authors.forename: F C
authors.initials: FC
authors.lastname: Cheong
authors.forename: K
authors.initials: K
authors.lastname: Xiao
authors.forename: D G
authors.initials: DG
authors.lastname: Grier
mesh_terms: D000818:Animals; D002417:Cattle; D006017:Glycolipids / Q000032:analysis / Q000737:chemistry*; D006023:Glycoproteins / Q000032:analysis / Q000737:chemistry*; D006041:Goats; D006696:Holography; D066292:Lipid Droplets; D018715:Microscopy, Video / Q000379:methods*; D008892:Milk / Q000737:chemistry*; D012031:Refractometry
chemical_list: D006017:Glycolipids; D006023:Glycoproteins; C110367:milk fat globule