Laser-Induced Magnetic Dipole Spectroscopy

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HINTZE, Christian, Dennis BÜCKER, Silvia DOMINGO KÖHLER, Gunnar JESCHKE, Malte DRESCHER, 2016. Laser-Induced Magnetic Dipole Spectroscopy. In: The Journal of Physical Chemistry Letters. 7(12), pp. 2204-2209. eISSN 1948-7185. Available under: doi: 10.1021/acs.jpclett.6b00765

@article{Hintze2016-06-16Laser-35203, title={Laser-Induced Magnetic Dipole Spectroscopy}, year={2016}, doi={10.1021/acs.jpclett.6b00765}, number={12}, volume={7}, journal={The Journal of Physical Chemistry Letters}, pages={2204--2209}, author={Hintze, Christian and Bücker, Dennis and Domingo Köhler, Silvia and Jeschke, Gunnar and Drescher, Malte} }

<rdf:RDF xmlns:dcterms="" xmlns:dc="" xmlns:rdf="" xmlns:bibo="" xmlns:dspace="" xmlns:foaf="" xmlns:void="" xmlns:xsd="" > <rdf:Description rdf:about=""> <bibo:uri rdf:resource=""/> <dcterms:abstract xml:lang="eng">Pulse electron paramagnetic resonance measurements of nanometer scale distance distributions have proven highly effective in structural studies. They exploit the magnetic dipole-dipole coupling between spin labels site-specifically attached to macromolecules. The most commonly applied technique is double electron-electron resonance (DEER, also called pulsed electron double resonance (PELDOR)). Here we present the new technique of laser-induced magnetic dipole (LaserIMD) spectroscopy based on optical switching of the dipole-dipole coupling. In a proof of concept experiment on a model peptide, we find, already at a low quantum yield of triplet excitation, the same sensitivity for measuring the distance between a porphyrin and a nitroxide label as in a DEER measurement between two nitroxide labels. On the heme protein cytochrome C, we demonstrate that LaserIMD allows for distance measurements between a heme prosthetic group and a nitroxide label, although the heme triplet state is not directly observable by an electron spin echo.</dcterms:abstract> <dc:contributor>Jeschke, Gunnar</dc:contributor> <dcterms:title>Laser-Induced Magnetic Dipole Spectroscopy</dcterms:title> <dc:language>eng</dc:language> <dc:creator>Jeschke, Gunnar</dc:creator> <dc:creator>Drescher, Malte</dc:creator> <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/> <dc:creator>Bücker, Dennis</dc:creator> <dc:date rdf:datatype="">2016-09-09T13:04:03Z</dc:date> <dc:creator>Domingo Köhler, Silvia</dc:creator> <dspace:isPartOfCollection rdf:resource=""/> <dc:contributor>Domingo Köhler, Silvia</dc:contributor> <dc:contributor>Hintze, Christian</dc:contributor> <foaf:homepage rdf:resource="http://localhost:8080/jspui"/> <dcterms:issued>2016-06-16</dcterms:issued> <dc:creator>Hintze, Christian</dc:creator> <dc:contributor>Drescher, Malte</dc:contributor> <dc:contributor>Bücker, Dennis</dc:contributor> <dcterms:available rdf:datatype="">2016-09-09T13:04:03Z</dcterms:available> <dcterms:isPartOf rdf:resource=""/> </rdf:Description> </rdf:RDF>

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