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921.
Hans Hahn 《Monatshefte für Mathematik》1903,14(1):325-342
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922.
923.
H. C. Hahn 《Fresenius' Journal of Analytical Chemistry》1873,12(1):441-442
Ohne Zusammenfassung 相似文献
924.
925.
Joseph Hahn 《Mathematische Annalen》1879,15(1):111-121
Ohne Zusammenfassung 相似文献
926.
Dr. Isabelle Marie Daubit Svenja Wortmann Dr. Daniel Siegmund Prof. Dr. Stephan Hahn Prof. Dr. Patrick Nuernberger Prof. Dr. Nils Metzler-Nolte 《Chemistry (Weinheim an der Bergstrasse, Germany)》2021,27(22):6783-6794
Complexes of RhI and IrI of the [M(COD)(NHC)X] type (where M=Rh or Ir, COD=1,5-cyclooctadiene, NHC=N-heterocyclic carbene, and X=halide) have recently shown promising cytotoxic activities against several cancer cell lines. Initial mechanism of action studies provided some knowledge about their interaction with DNA and proteins. However, information about their cellular localization remains scarce owing to luminescence quenching within this complex type. Herein, the synthesis of two rare examples of luminescent RhI and IrI [M(COD)(NHC)I] complexes with 1,8-naphthalimide-based emitting ligands is reported. All new complexes are comprehensively characterized, including with single-crystal X-ray structures. Steric crowding in one derivative leads to two distinct rotamers in solution, which apparently can be distinguished both by pronounced NMR shifts and by their respective spectral and temporal emission signatures. When the photophysical properties of these new complexes are exploited for cellular imaging in HT-29 and PT-45 cancer cell lines, it is demonstrated that the complexes accumulate predominantly in the endoplasmic reticulum, which is an entirely new finding and provides the first insight into the cellular localization of such IrI(NHC) complexes. 相似文献
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928.
Dr. Sebastian Hahn Julian Butscher Qingzhi An Angelina Jocic Olena Tverskoy Marcus Richter Prof. Dr. Xinliang Feng Dr. Frank Rominger Prof. Dr. Yana Vaynzof Prof. Uwe H. F. Bunz 《Chemistry (Weinheim an der Bergstrasse, Germany)》2019,25(30):7285-7291
Binaphthyl-3,3′,4,4′-tetraone was prepared and coupled to different bis(TIPS-ethynyl)-substituted (TIPS=triisopropyl silane) aromatic diamines, resulting in the formation of dimeric benzo-fused azaacenes, centrally connected by a single bond. The two halves of the molecules are highly twisted with respect to each other and showed limited electronic interaction in the ground state because their absorption spectra remained very similar to those of the constituting monomers. The dimers displayed greatly reduced fluorescence when compared to the monomers, suggesting that there is a significant interaction of the two azarene units in the excited state. Preliminary investigations showed that the dimers are attractive for application as acceptors in organic photovoltaic because they significantly outperform their monomeric counterparts. 相似文献
929.
Gwendolyn Cramer Robert Lewis Ashley Gymarty Sarah Hagan Michela Mickler Sydney Evans Salman R. Punekar Lee Shuman Charles B. Simone II Stephen M. Hahn Theresa M. Busch Douglass Fraker Keith A. Cengel 《Photochemistry and photobiology》2020,96(3):684-691
Peritoneal carcinomatosis (PC) can occur as an advanced consequence of multiple primary malignancies. Surgical resection, radiation or systemic interventions alone have proven inadequate for this aggressive cancer presentation, since PC still has a poor survival profile. Photodynamic therapy (PDT), in which photosensitive drugs are exposed to light to generate cytotoxic reactive oxygen species, may be an ideal treatment for PC because of its ability to deliver treatment to a depth appropriate for peritoneal surface tumors. Additionally, epidermal growth factor receptor (EGFR) signaling plays a variety of roles in cancer progression and survival as well as PDT-mediated cytotoxicity, so EGFR inhibitors may be valuable in enhancing the therapeutic index of intraperitoneal PDT. This study examines escalating doses of benzoporphyrin derivative (BPD)-mediated intraperitoneal PDT combined with the EGFR-inhibitor cetuximab in a canine model. In the presence or absence of small bowel resection (SBR) and cetuximab, we observed a tolerable safety and toxicity profile related to the light dose received. Additionally, our findings that BPD levels are higher in the small bowel compared with other anatomical regions, and that the risk of anastomotic failure decreases at lower light doses will help to inform the design of similar PC treatments in humans. 相似文献
930.