Article
Chemistry, Physical
Martin Laemmle, Benedikt Bagemihl, Djawed Nauroozi, Lydia Petermann, Andrea Pannwitz, Sven Rau
Summary: Six different monoarylated N-aryl-1H-imidazo[4,5-f][1,10]phenanthroline (Rip) ligands and their corresponding ruthenium complexes [(tbbpy)(2)Ru(Rip)](2+) Ru(Rip) have been synthesized. The structural, photophysical, photochemical, and electrochemical properties of the complexes were characterized. The results showed that the monoarylated Ru(Rip) complexes exhibited higher luminescence quantum yields compared to [Ru(bpy)(3)](2+) under inert conditions, while the Ru(RR'ip) complexes with imidazolium unit had notable loss of quantum yields.
Article
Chemistry, Inorganic & Nuclear
R. Owen Bonello, Mateusz B. Pitak, Graham J. Tizzard, Simon J. Coles, Ian A. Fallis, Simon J. A. Pope
Summary: A series of new imidazo[4,5-f]-1,10-phenanthroline based ligands have been synthesized and characterized. These ligands, with conjugated aryl groups of varying functionalities, readily react with [ReBr(CO)5] to form neutral coordination complexes. The complexes exhibit fluorescent and phosphorescent properties, emitting visible light in solution.
Article
Chemistry, Inorganic & Nuclear
Hashini N. K. Herath, Austin L. L. MacRae, Angel Ugrinov, Glenn R. R. Morello, Alexander R. R. Parent
Summary: Two phosphorus-containing ruthenium complexes were synthesized and characterized spectroscopically and electrochemically. Both complexes exhibited proton-coupled electron transfer (PCET) behavior. A Ru(V/IV) couple was detected at 1.4 V vs. NHE for [Ru(bpyPO(3)H(2))(bpy)Cl]Cl. The complexes were tested for their ability to catalyze C-H bond oxidation and it was found that [Ru(bpyPO(3)H(2))(bpy)Cl]Cl can oxidize secondary C-H bonds using NaIO4 as the primary oxidant under aqueous conditions.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Olga Mazuryk, Ewelina Janczy-Cempa, Justyna Lagosz, Dorota Rutkowska-Zbik, Agata Machnicka, Aneta Krasowska, Piotr Pietrzyk, Grazyna Stochel, Malgorzata Brindell
Summary: This study investigated the correlation between the spectroscopic and photophysical properties of Ru(ii) polypyridyl complexes and their photodynamic activity in vitro. The Ru(ii) complexes were found to exhibit phototoxic activity mainly through the generation of H2O2 and O-1(2), highlighting the importance of electron-transfer processes in their observed photodynamic activity. The compounds also retained their cytotoxic activity under hypoxic conditions, suggesting a potential for overcoming limitations in photodynamic therapy.
DALTON TRANSACTIONS
(2022)
Article
Biochemistry & Molecular Biology
Najwa Mansour, Kikki Bodman-Smith, Rony S. Khnayzer, Costantine F. Daher
Summary: The photoactivatable Ru(II) complex 1 exhibited promising anticancer activity against triple negative adenocarcinoma MDA-MB-231 cells. Upon photoactivation, complex 1 showed time-dependent cytotoxic activity, inducing cell apoptosis and activating intrinsic and extrinsic pathways while inhibiting MAPK and PI3K pathways. The study suggests that complex 1 is a potent multimechanistic photoactivatable chemotherapeutic drug with potential for targeted cancer chemotherapy.
CHEMICO-BIOLOGICAL INTERACTIONS
(2021)
Article
Chemistry, Medicinal
Przemyslaw Gajda-Morszewski, Ilona Gurgul, Ewelina Janczy-Cempa, Olga Mazuryk, Michal Lomzik, Malgorzata Brindell
Summary: The study evaluated a series of Ru(II) polypyridyl complexes for their cytotoxicity, cell adhesion properties, and inhibition of MMP-2 and MMP-9 activities in lung cancer A549 cells. Results showed that these complexes have moderate cytotoxicity and can enhance cell adhesion while inhibiting MMP-2 and MMP-9 enzyme activities, with [Ru(dip)(2)(bpy-SC)](2+) being the most effective in increasing cell adhesion and influencing MMP-9 activity.
Article
Chemistry, Physical
Mikhail A. Bondarenko, Alexander S. Novikov, Ilyas F. Sakhapov, Maxim N. Sokolov, Sergey A. Adonin
Summary: Heteroleptic Cu(I) complexes with 1,10-octachlorophenanthroline (OCP) were synthesized and characterized by XRD and TGA. The structures of the complexes showed non-covalent interactions of Cl···Br and Cl···I, which were identified as halogen bonding (XB) with energies up to 2.1 kcal/mol according to DFT calculations.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Article
Biochemistry & Molecular Biology
Nayara Junia de Souza Bontempo, Drielly Aparecida Paixao, Paula Marynella Alves Pereira Lima, Deysse Carla Tolentino Barros, Dayanne Silva Borges, Priscila Capelari Orsolin, Isabella Castro Martins, Pedro Henrique Alves Machado, Ricardo Campos Lino, Tiago Rodrigues de Souza, Luana Munique Sousa Ramos, Samuel Cota Teixeira, Raoni Pais Siqueira, Luiz Ricardo Goulart Filho, Wendell Guerra, Robson Jose de Oliveira Junior, Thaise Goncalves de Araujo
Summary: Prostate cancer is the second leading cause of cancer-related deaths among men. This study demonstrates that copper complex 1 has selective cytotoxic effects on prostate cancer cells and does not significantly affect mutagenic/recombinogenic abilities in Drosophila melanogaster. Complex 1 exhibits anticarcinogenic potential and could serve as a starting point for developing new antitumor agents for prostate cancer treatment.
Article
Chemistry, Inorganic & Nuclear
Purificacion Canadas, Julio Perez, Ramon Lopez, Lucia Riera
Summary: For the first time, the pyridine ring-opening of a metal-coordinated 1,10-phenanthroline has been demonstrated. The reaction of specific compounds followed by the addition of an electrophile resulted in the easy formation of ring-opening products at room temperature. The regiochemistry of the phenanthroline ring-opening products differed from those obtained with another ligand, and calculations suggest this is due to the avoidance of a larger loss of aromaticity. The new products were characterized both spectroscopically and through X-ray diffraction.
INORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Inorganic & Nuclear
Satish S. Bhat, Vidyanand K. Revankar, Rahul V. Pinjari, Vijay Kumbar, Kishore Bhat, Vitthal A. Kawade
Summary: Two water-soluble ruthenium(II) polypyridyl complexes have been synthesized and characterized, and their structural, optical, and cellular imaging properties have been investigated. The complexes exhibit strong emission in aqueous solutions and show low toxicity towards human cancer and kidney cell lines. Fluorescence microscopy confirms their potential for cellular imaging applications.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Biochemistry & Molecular Biology
Francesco Fagnani, Alessia Colombo, Graziella Malandrino, Claudia Dragonetti, Anna Lucia Pellegrino
Summary: Substituting the diglyme ligand with simple 1,10-phenanthroline in [Eu(hfa)(3)(diglyme)] results in a six-fold increase in mu beta(EFISH), as measured by EFISH technique. Similarly, [Eu(tta)(3)(1,10-phenanthroline)] shows a large second-order NLO response, indicating great potential for use as multifunctional materials for photonics.
Article
Chemistry, Inorganic & Nuclear
Yang Lu, Zhiying Hou, Mengshan Li, Ning Wang, Jinhui Wang, Feng Ni, Yufen Zhao, Bin Zhang, Ning Xi
Summary: This study investigates the relationship between electronic properties and chemotherapeutic activities of Ruthenium-based complexes. It is found that increasing the electron densities of Ruthenium enhances its bioactivity against amino acids and nucleic acids. Additionally, the study demonstrates that these complexes can also be used as potential cellular imaging probes through an unprecedented off-on light-switching mechanism of living cells.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Inorganic & Nuclear
Elodie Rousset, Olivier Mongin, Juliette Moreau, Latevi Max Lawson-Daku, Marc Beley, Philippe C. Gros, Sylviane Chevreux, Mireille Blanchard-Desce, Gilles Lemercier
Summary: A series of homo- and heteroleptic Ru(II) complexes were synthesized and evaluated for their photo-physical properties with different substituents. The results indicate that the nature of the substituent and the symmetry of the complex play a crucial role in tuning the redox potentials and photophysical characteristics.
DALTON TRANSACTIONS
(2021)
Article
Microbiology
Thais P. Mello, Ana Carolina Aor, Iuri C. Barcellos, Matheus M. Pereira, Malachy McCann, Michael Devereux, Marta H. Branquinha, Andre L. S. Santos
Summary: This study tested the effects of 16 metal-based compounds on human pathogens belonging to the Scedosporium/Lomentospora genera. All 16 compounds interfered with the viability of these fungal pathogens to different degrees. A manganese-containing compound showed the best activity against the fungal species and had the least toxicity to human lung cells. Additionally, it reduced the formation of biofilms by these fungi.
FUTURE MICROBIOLOGY
(2023)
Article
Nanoscience & Nanotechnology
Congcong Lv, Xiaoyan Guo, Yue Hou, Wei Liu, Yanli Guo, Zixuan Zhang, Yan Jin, Baoxin Li
Summary: The paper successfully transformed the flash-type system of luminol into a long-lasting chemiluminescence system by loading Cu(II)-based organic complex on the paper substrate, achieving a long-lasting emission of over 30 minutes. By controlling the amount of water in the synthesis process, the morphology of the complex can be adjusted, thus controlling the luminescent effect.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Inorganic & Nuclear
Dmytro Havrylyuk, David K. Heidary, Leona Nease, Sean Parkin, Edith C. Glazer
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2017)
Article
Microbiology
Brian C. Russo, Jeffrey K. Duncan, Alexandra L. Wiscovitch, Austin C. Hachey, Marcia B. Goldberg
Article
Chemistry, Inorganic & Nuclear
Dmytro Havrylyuk, Kimberly Stevens, Sean Parkin, Edith C. Glazer
INORGANIC CHEMISTRY
(2020)
Article
Biochemistry & Molecular Biology
John Roque, Dmytro Havrylyuk, Patrick C. Barrett, Tariq Sainuddin, Julia McCain, Katsuya Colon, William T. Sparks, Evan Bradner, Susan Monro, David Heidary, Colin G. Cameron, Edith C. Glazer, Sherri A. McFarland
PHOTOCHEMISTRY AND PHOTOBIOLOGY
(2020)
Article
Chemistry, Multidisciplinary
Dmytro Havrylyuk, David K. Heidary, Yang Sun, Sean Parkin, Edith C. Glazer
Article
Biochemistry & Molecular Biology
Houston D. Cole, John A. Roque, Liubov M. Lifshits, Rachel Hodges, Patrick C. Barrett, Dmytro Havrylyuk, David Heidary, Elamparuthi Ramasamy, Colin G. Cameron, Edith C. Glazer, Sherri A. McFarland
Summary: This study explores the activity of a pair of isomers and their functionalized derivatives in photodynamic and photochemo-therapies, showing that minor structural modifications can dramatically modulate the normoxic and hypoxic activity of strained compounds, exerting a greater influence on photocytotoxicity than expected.
PHOTOCHEMISTRY AND PHOTOBIOLOGY
(2022)
Article
Chemistry, Medicinal
David K. Heidary, Sarah M. Kriger, Austin C. Hachey, Edith C. Glazer
Summary: This study introduces a novel cell-based assay that allows for multiplexed assessment of enzyme activity, protein half-life, cell viability, and identification of inhibitors with slow off-rates in live cells.
Article
Chemistry, Inorganic & Nuclear
Raphael T. Ryan, Dmytro Havrylyuk, Kimberly C. Stevens, L. Henry Moore, Sean Parkin, Jessica S. Blackburn, David K. Heidary, John P. Selegue, Edith C. Glazer
Summary: The beta-diketone scaffold, a commonly used synthetic intermediate, showed promising structure-dependent cytotoxicity in constructing Ru(II) complexes, suggesting the potential for future drug development.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2021)
Article
Multidisciplinary Sciences
Dmytro Havrylyuk, Austin C. Hachey, Alexander Fenton, David K. Heidary, Edith C. Glazer
Summary: This study describes the creation of light-triggered CYP1B1 inhibitors as prodrugs, which achieve a significant improvement in potency upon activation with low-energy light. These inhibitors show high selectivity in live cells and have potential for providing similar selectivity and control.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Inorganic & Nuclear
Raphael T. Ryan, Dmytro Havrylyuk, Kimberly C. Stevens, L. Henry Moore, Doo Young Kim, Jessica S. Blackburn, David K. Heidary, John P. Selegue, Edith C. Glazer
DALTON TRANSACTIONS
(2020)
Article
Multidisciplinary Sciences
Roby P. Bhattacharyya, Mark Walker, Rich Boykin, Sophie S. Son, Jamin Liu, Austin C. Hachey, Peijun Ma, Lidan Wu, Kyungyong Choi, Kaelyn C. Cummins, Maura Benson, Jennifer Skerry, Hyunryul Ryu, Sharon Y. Wong, Marcia B. Goldberg, Jongyoon Han, Virginia M. Pierce, Lisa A. Cosimi, Noam Shoresh, Jonathan Livny, Joseph Beechem, Deborah T. Hung
SCIENTIFIC REPORTS
(2019)
Article
Chemistry, Multidisciplinary
Dmytro Havrylyuk, Megha Deshpande, Sean Parkin, Edith C. Glazer
CHEMICAL COMMUNICATIONS
(2018)