@article{MansourSteigerNageletal.2019,
  author    = {Mansour, Ahmed M. and Steiger, Christoph and Nagel, Christoph and Schatzschneider, Ulrich},
  title     = {Wavelength-dependent control of the CO release kinetics of manganese(I) tricarbonyl PhotoCORMs with benzimidazole coligands},
  series = {European Journal of Inorganic Chemistry},
  volume    = {2019},
  journal   = {European Journal of Inorganic Chemistry},
  number    = {42},
  doi       = {10.1002/ejic.201900894},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-218362},
  pages     = {4572-4581},
  year      = {2019},
  abstract  = {A series of photoactivatable CO-releasing molecules (PhotoCORMs) was prepared from manganese pentacarbonyl bromide and 1H-benzimidazol-2-ylmethyl-(N-phenyl)amine ligands (L) bearing different electron-donating and electron-withdrawing groups R = H, 4-CH\(_3\), 4-OCH\(_3\), 4-Cl, 4-NO\(_2\), 2-, 3-, and 4-COOCH\(_3\) on the phenyl substituent to give octahedral manganese(I) complexes of the general formula [MnBr(CO)\(_3\)(L)]. Aerated DMSO solutions of the compounds are stable in the dark for 16 h with no CO release. However, the compounds rapidly release CO upon illumination at 412-525 nm, depending on the substitution pattern. Its influence on the photophysical and photochemical properties was systematically explored using UV/Vis spectroscopy and CO release measurements with a commercial gas sensor system. In the nitro-substituted compound, the electronically excited state switched from benzimidazole- to phenyl-centered, leading to a markedly different photochemical behavior of this visible-light activated PhotoCORM.},
  language  = {en}
}
@phdthesis{Steiger2017,
  author    = {Steiger, Christoph},
  title     = {Drug delivery of therapeutic gases - strategies for controlled and local delivery of carbon monoxide},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-141054},
  school      = {Universit{\"a}t W{\"u}rzburg},
  year      = {2017},
  abstract  = {The isoenzyme heme oxygenase 1 (HO-1) is a key element for maintaining cellular homeostasis. Upregulated in response to cellular stress, the HO-1 degrades heme into carbon monoxide (CO), biliverdin, and Fe2+. By means of a local cell-protective feedback loop the enzyme triggers numerous effects including anti-oxidative, anti-apoptotic, and anti-inflammatory events associated with complex signalling patterns which are largely orchestrated by CO. Various approaches to mimic this physiological HO-1 / CO system aiming for a treatment of medical conditions have been described [1]. These preclinical studies commonly applied CO systemically via (i) inhalation or (ii) using CO-Releasing Molecules (CORMs) [2]. The clinical use of these approaches, however, is challenged by a lack of practicability and substantial safety issues associated with the toxicity of high systemic doses of CO that are required for triggering therapeutic effects. Therefore, one rational of this thesis is to describe and evaluate strategies for the local delivery of CO aiming for safe and effective CO therapeutics of tomorrow.},
  subject      = {Targeted drug delivery},
  language  = {en}
}