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FältnamnIndikatorerMetadata
00004644naa a2200937 4500
001oai:DiVA.org:uu-177586
003SwePub
008120716s2012 | |||||||||||000 ||eng|
024a https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-1775862 URI
024a https://doi.org/10.1038/nature112222 DOI
040 a (SwePub)uu
041 a engb eng
042 9 SwePub
072 7a ref2 swepub-contenttype
072 7a art2 swepub-publicationtype
100a Loh, N. D.4 aut
2451 0a Fractal morphology, imaging and mass spectrometry of single aerosol particles in flight
264 c 2012-06-27
264 1b Springer Science and Business Media LLC,c 2012
338 a print2 rdacarrier
520 a The morphology of micrometre-size particulate matter is of critical importance in fields ranging from toxicology(1) to climate science(2), yet these properties are surprisingly difficult to measure in the particles' native environment. Electron microscopy requires collection of particles on a substrate(3); visible light scattering provides insufficient resolution(4); and X-ray synchrotron studies have been limited to ensembles of particles(5). Here we demonstrate an in situ method for imaging individual sub-micrometre particles to nanometre resolution in their native environment, using intense, coherent X-ray pulses from the Linac Coherent Light Source(6) free-electron laser. We introduced individual aerosol particles into the pulsed X-ray beam, which is sufficiently intense that diffraction from individual particles can be measured for morphological analysis. At the same time, ion fragments ejected from the beam were analysed using mass spectrometry, to determine the composition of single aerosol particles. Our results show the extent of internal dilation symmetry of individual soot particles subject to non-equilibrium aggregation, and the surprisingly large variability in their fractal dimensions. More broadly, our methods can be extended to resolve both static and dynamic morphology of general ensembles of disordered particles. Such general morphology has implications in topics such as solvent accessibilities in proteins(7), vibrational energy transfer by the hydrodynamic interaction of amino acids(8), and large-scale production of nanoscale structures by flame synthesis(9).
700a Hampton, C. Y.4 aut
700a Martin, A. V.4 aut
700a Starodub, D.4 aut
700a Sierra, R. G.4 aut
700a Barty, A.4 aut
700a Aquila, A.4 aut
700a Schulz, J.4 aut
700a Lomb, L.4 aut
700a Steinbrener, J.4 aut
700a Shoeman, R. L.4 aut
700a Kassemeyer, S.4 aut
700a Bostedt, C.4 aut
700a Bozek, J.4 aut
700a Epp, S. W.4 aut
700a Erk, B.4 aut
700a Hartmann, R.4 aut
700a Rolles, D.4 aut
700a Rudenko, A.4 aut
700a Rudek, B.4 aut
700a Foucar, L.4 aut
700a Kimmel, N.4 aut
700a Weidenspointner, G.4 aut
700a Hauser, G.4 aut
700a Holl, P.4 aut
700a Pedersoli, E.4 aut
700a Liang, M.4 aut
700a Hunter, M. M.4 aut
700a Gumprecht, L.4 aut
700a Coppola, N.4 aut
700a Wunderer, C.4 aut
700a Graafsma, H.4 aut
700a Maia, F. R. N. C.4 aut
700a Ekeberg, Tomasu Uppsala universitet,Molekylär biofysik4 aut0 (Swepub:uu)tomek611
700a Hantke, Maxu Uppsala universitet,Molekylär biofysik4 aut0 (Swepub:uu)maxha207
700a Fleckenstein, H.4 aut
700a Hirsemann, H.4 aut
700a Nass, K.4 aut
700a White, T. A.4 aut
700a Tobias, H. J.4 aut
700a Farquar, G. R.4 aut
700a Benner, W. H.4 aut
700a Hau-Riege, S. P.4 aut
700a Reich, C.4 aut
700a Hartmann, A.4 aut
700a Soltau, H.4 aut
700a Marchesini, S.4 aut
700a Bajt, S.4 aut
700a Barthelmess, M.4 aut
700a Bucksbaum, P.4 aut
700a Hodgson, K. O.4 aut
700a Strueder, L.4 aut
700a Ullrich, J.4 aut
700a Frank, M.4 aut
700a Schlichting, I.4 aut
700a Chapman, H. N.4 aut
700a Bogan, M. J.4 aut
710a Uppsala universitetb Molekylär biofysik4 org
773t Natured : Springer Science and Business Media LLCg 486:7404, s. 513-517q 486:7404<513-517x 0028-0836x 1476-4687
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-177586
8564 8u https://doi.org/10.1038/nature11222

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