Haumann M - Search Results

1

Operando tracking of oxidation-state changes by coupling electrochemistry with time-resolved X-ray absorption spectroscopy demonstrated for water oxidation by a cobalt-based catalyst film.

Pasquini C, Liu S, Chernev P, Gonzalez-Flores D, Mohammadi MR, Kubella P, Jiang S, Loos S, Klingan K, Sikolenko V, Mebs S, Haumann M, Beyer P, D'Amario L, Smith RDL, Zaharieva I, Dau H. Pasquini C, et al. Among authors: haumann m. Anal Bioanal Chem. 2021 Sep;413(21):5395-5408. doi: 10.1007/s00216-021-03515-0. Epub 2021 Jul 17. Anal Bioanal Chem. 2021. PMID: 34274992 Free PMC article.

2

The first room-temperature X-ray absorption spectra of higher oxidation states of the tetra-manganese complex of photosystem II.

Haumann M, Grabolle M, Neisius T, Dau H. Haumann M, et al. FEBS Lett. 2002 Feb 13;512(1-3):116-20. doi: 10.1016/s0014-5793(02)02237-8. FEBS Lett. 2002. PMID: 11852063 Free article.

3

First steps towards time-resolved BioXAS at room temperature: state transitions of the manganese complex of oxygenic photosynthesis.

Haumann M, Pospísil P, Grabolle M, Müller C, Liebisch P, Solé VA, Neisius T, Dittmer J, Iuzzolino L, Dau H. Haumann M, et al. J Synchrotron Radiat. 2002 Sep 1;9(Pt 5):304-8. doi: 10.1107/s0909049502012955. Epub 2002 Aug 31. J Synchrotron Radiat. 2002. PMID: 12200574

4

X-ray absorption spectroscopy to watch catalysis by metalloenzymes: status and perspectives discussed for the water-splitting manganese complex of photosynthesis.

Dau H, Haumann M. Dau H, et al. Among authors: haumann m. J Synchrotron Radiat. 2003 Jan 1;10(Pt 1):76-85. doi: 10.1107/s090904950201720x. Epub 2002 Dec 24. J Synchrotron Radiat. 2003. PMID: 12511796

5

X-ray absorption spectroscopy to analyze nuclear geometry and electronic structure of biological metal centers--potential and questions examined with special focus on the tetra-nuclear manganese complex of oxygenic photosynthesis.

Dau H, Liebisch P, Haumann M. Dau H, et al. Among authors: haumann m. Anal Bioanal Chem. 2003 Jul;376(5):562-83. doi: 10.1007/s00216-003-1982-2. Epub 2003 Jun 11. Anal Bioanal Chem. 2003. PMID: 12802563

6

Hydrogen-induced structural changes at the nickel site of the regulatory [NiFe] hydrogenase from Ralstonia eutropha detected by X-ray absorption spectroscopy.

Haumann M, Porthun A, Buhrke T, Liebisch P, Meyer-Klaucke W, Friedrich B, Dau H. Haumann M, et al. Biochemistry. 2003 Sep 23;42(37):11004-15. doi: 10.1021/bi034804d. Biochemistry. 2003. PMID: 12974636

7

A novel BioXAS technique with sub-millisecond time resolution to track oxidation state and structural changes at biological metal centers.

Haumann M, Müller C, Liebisch P, Neisius T, Dau H. Haumann M, et al. J Synchrotron Radiat. 2005 Jan;12(Pt 1):35-44. doi: 10.1107/S0909049504027803. Epub 2004 Dec 23. J Synchrotron Radiat. 2005. PMID: 15616363

8

Structural and oxidation-state changes at its nonstandard Ni-Fe site during activation of the NAD-reducing hydrogenase from Ralstonia eutropha detected by X-ray absorption, EPR, and FTIR spectroscopy.

Burgdorf T, Löscher S, Liebisch P, Van der Linden E, Galander M, Lendzian F, Meyer-Klaucke W, Albracht SP, Friedrich B, Dau H, Haumann M. Burgdorf T, et al. Among authors: haumann m. J Am Chem Soc. 2005 Jan 19;127(2):576-92. doi: 10.1021/ja0461926. J Am Chem Soc. 2005. PMID: 15643882

9

Non-standard structures of the Ni-Fe cofactor in the regulatory and the NAD-reducing hydrogenases from Ralstonia eutropha.

Löscher S, Burgdorf T, Buhrke T, Friedrich B, Dau H, Haumann M. Löscher S, et al. Among authors: haumann m. Biochem Soc Trans. 2005 Feb;33(Pt 1):25-7. doi: 10.1042/BST0330025. Biochem Soc Trans. 2005. PMID: 15667255

10

Structural and oxidation state changes of the photosystem II manganese complex in four transitions of the water oxidation cycle (S0 --> S1, S1 --> S2, S2 --> S3, and S3,4 --> S0) characterized by X-ray absorption spectroscopy at 20 K and room temperature.

Haumann M, Müller C, Liebisch P, Iuzzolino L, Dittmer J, Grabolle M, Neisius T, Meyer-Klaucke W, Dau H. Haumann M, et al. Biochemistry. 2005 Feb 15;44(6):1894-908. doi: 10.1021/bi048697e. Biochemistry. 2005. PMID: 15697215

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