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Available techniques for nanoparticle characterization are predominantly focused on size characterization. However, simultaneous size and shape characterization is still an unresolved major challenge. We demonstrate that analytical ultracentrifugation with a multiwavelength detector is a powerful technique to address multidimensional nanoparticle analysis. Using a high performance optical setup and data acquisition software, information on size, shape anisotropy and optical properties were accessible in one single experiment with unmatched accuracy and resolution. A dynamic rotor speed gradient allowed us to investigate broad distributions on a short time scale and differentiate between gold nanorod species including the precise evaluation of aggregate formation. We report how to distinguish between different species of single-wall carbon nanotubes in just one experiment using the wavelength-dependent sedimentation coefficient distribution without the necessity of time-consuming purification methods. Furthermore, CdTe nanoparticles of different size and optical properties were investigated in a single experiment providing important information on structure\u2013property relations. Thus, multidimensional information on size, density, shape and optical properties of nanoparticulate systems becomes accessible by means of analytical ultracentrifugation equipped with multiwavelength detection.<\/jats:p>","DOI":"10.1021\/nn503205k","type":"journal-article","created":{"date-parts":[[2014,8,17]],"date-time":"2014-08-17T12:23:03Z","timestamp":1408278183000},"page":"8871-8886","source":"Crossref","is-referenced-by-count":150,"title":["Multidimensional Analysis of Nanoparticles with Highly Disperse Properties Using Multiwavelength Analytical Ultracentrifugation"],"prefix":"10.1021","volume":"8","author":[{"given":"Johannes","family":"Walter","sequence":"first","affiliation":[{"name":"Friedrich-Alexander University Erlangen-Nu\u0308rnberg (FAU) , , Cauerstr. 4 , ,","place":["Erlangen, Germany, 91058"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Konrad","family":"Lo\u0308hr","sequence":"additional","affiliation":[{"name":"Friedrich-Alexander University Erlangen-Nu\u0308rnberg (FAU) , , Cauerstr. 4 , ,","place":["Erlangen, Germany, 91058"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Engin","family":"Karabudak","sequence":"additional","affiliation":[{"name":"University of Twente , , P.O. Box 217, ,","place":["Enschede, The Netherlands, 7500 AE"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wieland","family":"Reis","sequence":"additional","affiliation":[{"name":"BASF SE , , ,","place":["Ludwigshafen, Germany, 67056"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jules","family":"Mikhael","sequence":"additional","affiliation":[{"name":"BASF SE , , ,","place":["Ludwigshafen, Germany, 67056"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wolfgang","family":"Peukert","sequence":"additional","affiliation":[{"name":"Friedrich-Alexander University Erlangen-Nu\u0308rnberg (FAU) , , Cauerstr. 4 , ,","place":["Erlangen, Germany, 91058"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wendel","family":"Wohlleben","sequence":"additional","affiliation":[{"name":"BASF SE , , ,","place":["Ludwigshafen, Germany, 67056"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Helmut","family":"Co\u0308lfen","sequence":"additional","affiliation":[{"name":"University of Konstanz , , Universita\u0308tsstr. 10 , ,","place":["Konstanz, Germany, 78457"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"316","published-online":{"date-parts":[[2014,8,17]]},"reference":[{"key":"2026082008293271900_cit1","doi-asserted-by":"crossref","first-page":"7","DOI":"10.1007\/s10971-006-7302-5","article-title":"Colloidal ZnO Nanostructures and Functional Coatings: A Survey","volume":"39","author":"Spanhel","year":"2006","journal-title":"J. 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