Article
Chemistry, Multidisciplinary
Hiwa K. Saeed, Paul J. Jarman, Sreejesh Sreedharan, Rachel Mowll, Alexander J. Auty, Adrien A. P. Chauvet, Carl G. W. Smythe, Jorge Bernardino de la Serna, Jim A. Thomas
Summary: The synthesis of a new heterodinuclear metallointercalator containing Ru-II(dppz) and Re-I(dppn) moieties is reported. Cell-free studies show that the complex has similar photophysical properties and DNA binding affinity as its homoleptic M(dppz) analogue. However, it exhibits different in-cell properties, accumulating preferentially in mitochondria and displaying phototoxicity. These observations demonstrate the impact of small structural changes on the mechanism of action of metal-based therapeutic leads.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Christian Bruckner, Nivedita Chaudhri, Dustin E. Nevonen, Sayantan Bhattacharya, Arthur Graf, Elizabeth Kaesmann, Ruoshi Li, Matthew J. Guberman-Pfeffer, Tomoyasu Mani, Arunpatcha Nimthong-Roldan, Matthias Zeller, Adrien A. P. Chauvet, Victor Nemykin
Summary: By treating beta-octaethylporphyrin with H2O2/conc. H2SO4, various isomers including beta-oxochlorin and beta,beta'-dioxo-derivatives are synthesized. Through thorough characterization of their structures, UV-vis absorption spectra, fluorescence emission, and electronic properties, this study provides insights for further investigation and application of these compounds.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Ponnusamy Packialakshmi, Perumal Gobinath, Daoud Ali, Saud Alarifi, Raman Gurusamy, Akbar Idhayadhulla, Radhakrishnan Surendrakumar
Summary: In this study, chitosan derivatives were synthesized into sulfonated Schiff bases compounds without the use of a catalyst. The synthesized compounds showed high anticancer activity against MCF-7 cancer cells and low cytotoxicity against normal cell lines. In-silico study also revealed that one of the compounds exhibited higher binding affinity for a specific protein, indicating its potential as an anticancer drug.
FRONTIERS IN CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Ahmed M. Mansour, Nourhan M. Ibrahim, Ahmad M. Farag, Mahmoud T. Abo-Elfadl
Summary: In this study, two Re(I) complexes were synthesized and their solvatochromic characteristics were examined. The study found that both complexes exhibited autofluorescence emission inside cells and showed increased apoptotic changes in specific cell lines.
Article
Biochemistry & Molecular Biology
Aleksandra Grzelakowska, Julia Modrzejewska, Jolanta Kolinska, Marcin Szala, Monika Zielonka, Karolina Debowska, Malgorzata Zaklos-Szyda, Adam Sikora, Jacek Zielonka, Radoslaw Podsiadly
Summary: A new water-soluble and cationic boronate probe (CI-Bz-BA) based on a coumarin-imidazolium scaffold for the fluorescent detection of ONOO- in cells was developed. The probe reacts stoichiometrically with ONOO- to form major phenolic product CI-OH and minor nitrated product CI-Bz-NO2, which were not formed by other oxidants tested. Detection of endogenously produced ONOO- was demonstrated using the probe in RAW 264.7 cells through fluorescence measurements and liquid chromatography/mass spectrometry analyses.
FREE RADICAL BIOLOGY AND MEDICINE
(2022)
Article
Fisheries
Xiaoqin Yuan, Yi Rong, You Chen, Chaoqun Ren, Yufan Meng, Yinnan Mu, Xinhua Chen
Summary: Interleukin-4 (IL-4) and IL-13 are closely related cytokines that play key roles in the Th-2 immune response. In the large yellow croaker, four IL-4/13 receptor subunit genes have been identified, showing conserved characteristic domains and involvement in the immune response to pathogenic infections.
FISH & SHELLFISH IMMUNOLOGY
(2022)
Article
Chemistry, Inorganic & Nuclear
Betul Harurluoglu, Ahmet Altay, Sema Caglar, Esma Kubra Kagan Yeniceri, Bulent Caglar, Zarife Sibel Sahin
Summary: Two new binuclear silver(I)-tolfenamic acid complexes were synthesized and investigated for their cytotoxicity against human breast cancer cells. The structures of the complexes were determined and showed potent cytotoxic effects with mechanisms involving apoptosis induction in cancer cells.
Article
Radiology, Nuclear Medicine & Medical Imaging
Anupriya Chhabra, Jaya Shukla, Uma Sharma, Rakhee Vatsa, Alka Bhatia, Deepti Upadhyay, Bhagwant Rai Mittal
Summary: A novel theranostic radiopharmaceutical was developed for estrogen receptor-positive breast cancers, showing high cytotoxicity towards cells. Additionally, the radiolabeled complex allows for radionuclide therapy using a lower amount of tamoxifen compared to traditional therapy.
NUCLEAR MEDICINE COMMUNICATIONS
(2021)
Article
Chemistry, Medicinal
Sho'leh Ghaedamini, Saeed Karbasi, Batool Hashemibeni, Ali Honarvar, Abbasali Rabiei
Summary: This study fabricated polycaprolactone (PCL) scaffolds using a novel 3D printing method and coated them with 2% agarose (Ag) hydrogel. The incorporation of Ag enhanced the hydrophilicity and water absorption of the scaffolds, positively influencing cell behavior.
RESEARCH IN PHARMACEUTICAL SCIENCES
(2023)
Review
Chemistry, Analytical
Lucyano J. A. Macedo, Fernando P. Rodrigues, Ayaz Hassan, Leandro N. C. Maximo, Fabio Zobi, Roberto S. da Silva, Frank N. Crespilho
Summary: Recent emergence of FTIR spectromicroscopy (micro-FTIR) as a dynamic spectroscopy for imaging to study biological chemistry has opened new possibilities for investigating in situ drug release, redox chemistry effects on biological molecules, DNA and drug interactions, membrane dynamics, and redox reactions with proteins at the single cell level. Micro-FTIR applied to metallodrugs has been playing an important role since the last decade because of its great potential to achieve more robust and controlled pharmacological effects against several diseases, including cancer. An important aspect in the development of these drugs is to understand their cellular properties, such as uptake, accumulation, activity, and toxicity. The review highlights both the potential application of micro-FTIR and its importance for studying metal-based drugs, emphasizing the perspectives of chemistry of living cells and the significance of bioimaging for localization of cellular processes to understand the mechanism of action.
ANALYTICAL METHODS
(2022)
Review
Biochemistry & Molecular Biology
Kevin Schindler, Fabio Zobi
Summary: Organometallic compounds of rhenium, particularly its tri- and dicarbonyl complexes, have shown promising potential as anticancer and antibiotic drugs due to their ease of preparation, stability, and unique photophysical and luminescent properties. This review focuses on discussing the structural variations and in vitro efficacy of these complexes in the past seven years, with an initial emphasis on tricarbonyl complexes and a later discussion on the future prospects of dicarbonyl species in this field.
Article
Multidisciplinary Sciences
Hagir B. Suliman, Zachary Healy, Fabio Zobi, Bryan D. Kraft, Karen Welty-Wolf, Joshua Smith, Christina Barkauskas, Claude A. Piantadosi
Summary: The preclinical model of bleomycin-induced lung fibrosis is useful to study mechanisms related to human pulmonary fibrosis. The study found that HO-1/NRF-1 signaling protects lung AT2 cells against injury and fibrosis by maintaining mitochondrial health and suppressing the TGF beta 1 pathway.
Review
Chemistry, Multidisciplinary
Mirco Natali, Andrea Sartorel, Albert Ruggi
Summary: The political and environmental problems associated with fossil fuel usage have led to the exploration of alternative strategies for green and renewable fuels. The light-driven water splitting process has been extensively studied as a means to obtain hydrogen. However, the water oxidation reaction remains challenging. Recent research efforts have focused on alternative oxidation processes, such as the oxidation of organic compounds. Hybrid photoanodes, which combine light-absorbing components with catalysts, have been investigated for photoelectrochemical reactions. Challenges and future perspectives, particularly in the activation of C-H bonds, are also discussed briefly.
FRONTIERS IN CHEMISTRY
(2022)
Article
Biochemistry & Molecular Biology
Sara Nasiri Sovari, Taryn M. Golding, Mziyanda Mbaba, Roxanne Mohunlal, Timothy J. Egan, Gregory S. Smith, Fabio Zobi
Summary: A small library of aminoquinoline and imidazolopiperidine (IMP)-based ligands showed potent inhibitory activities against chloroquine-sensitive (CQS) and multidrug-resistant (MDR) strains of P. falciparum. The compounds may act through hemozoin inhibition and the quinoline-based compounds exhibited higher binding affinities than the reference drug chloroquine.
JOURNAL OF INORGANIC BIOCHEMISTRY
(2022)
Article
Chemistry, Medicinal
Kevin Schindler, Youri Cortat, Miroslava Nedyalkova, Aurelien Crochet, Marco Lattuada, Aleksandar Pavic, Fabio Zobi
Summary: Antimicrobial resistance poses a significant threat to human health and has a major impact on the global economy. Metal complexes, including rhenium complexes, have untapped potential as antimicrobial agents. This study investigates the antimicrobial potential of rhenium di- and tricarbonyl diimine complexes and identifies two potential targets for these compounds. The findings have implications for the future design of rhenium tricarbonyl diimine-based antibiotics.
Article
Biochemistry & Molecular Biology
Antonio Orlando, Fiorella Lucarini, Elisabetta Benazzi, Federico Droghetti, Albert Ruggi, Mirco Natali
Summary: This study reports on light-driven hydrogen production in an aqueous solution using a series of coordination complexes as hydrogen evolving catalysts. A peculiar trend in activity has been observed depending on the substituents present on the ligand, suggesting that the electronic effects on light-triggered molecular catalysis depend on the whole photochemical system.
Article
Chemistry, Organic
Fatlinda Rahmani, Aurelien Crochet, Fabio Zobi
Summary: In this study, (E)-3-(2-(4-methylthiazol-2-yl)hydrazineylidene)chromane-2,4-dione was synthesized for the first time and characterized using various spectroscopic techniques. The chemical structure and isomeric configuration of the molecule were confirmed by single-crystal X-ray diffraction.
Article
Infectious Diseases
Youri Cortat, Miroslava Nedyalkova, Kevin Schindler, Parth Kadakia, Gozde Demirci, Sara Nasiri Sovari, Aurelien Crochet, Stefan Salentinig, Marco Lattuada, Olimpia Mamula Steiner, Fabio Zobi
Summary: In the context of the global health issue caused by antimicrobial resistance (AMR), the need for novel antimicrobial agents is urgent. Inorganic and organometallic complexes show potential as untapped sources of antibiotics. This study used a computer-aided drug design approach to synthesize and evaluate fac-Re(I) tricarbonyl complexes as antibacterial agents, with promising results.
Article
Chemistry, Inorganic & Nuclear
Kevin Schindler, Justine Horner, Gozde Demirci, Youri Cortat, Aurelien Crochet, Olimpia Mamula Steiner, Fabio Zobi
Summary: Cancer is still a leading cause of death worldwide, and the interest in organometallic complexes as anticancer drug candidates is crucial. Rhenium dicarbonyl complexes have been given less attention compared to tricarbonyl complexes. This study tested various rhenium dicarbonyl complexes in vitro against different cancer cell lines and found that some compounds showed good activity against specific cancer lines but were also toxic to healthy cells.
Review
Pharmacology & Pharmacy
Youri Cortat, Fabio Zobi
Summary: This review discusses the research work on coordination derivatives of antifungal azoles (AAs) synthesized for medical purposes, highlighting the most promising compounds and emphasizing the efficiency of AAs and their metallic species.
Article
Chemistry, Physical
Fiorella Lucarini, Jennifer Fize, Adina Morozan, Federico Droghetti, Euro Solari, Rosario Scopelliti, Marco Marazzi, Mirco Natali, Mariachiara Pastore, Vincent Artero, Albert Ruggi
Summary: Cobalt(II) complexes with hexadentate amino-pyridyl ligands have been found to be highly active catalysts for the Hydrogen Evolution Reaction (HER) due to the possibility of assisting proton transfer processes. Three new proton reduction catalysts based on amino-polypyridyl ligands are reported, with different pyridine ortho-position substitutions that aim to enhance intramolecular proton transfer and catalyst efficiency. The cobalt complex C3 exhibits the highest turnover frequency among the catalysts, but with large overpotentials. Density Functional Theory (DFT) calculations suggest a typical ECEC mechanism for the catalytic routes, except in the case of complex C2 where an initial protonation of the carboxylate group triggers a less common (C)ECEC mechanism.
SUSTAINABLE ENERGY & FUELS
(2023)
Article
Chemistry, Inorganic & Nuclear
Sara Nasiri Sovari, Isabelle Kolly, Kevin Schindler, Ana Djuric, Tatjana Srdic-Rajic, Aurelien Crochet, Aleksandar Pavic, Fabio Zobi
Summary: This study reports the synthesis, characterization, and in vivo evaluation of a series of rhenium tricarbonyl complexes containing 5- and 6-(halomethyl)-2,2'-bipyridine ligands. The aim was to investigate the role of a reactive halomethyl substituent on the diimine ligand system in the design of effective and non-toxic anticancer agents. Compounds capable of undergoing ligand-based alkylating reactions exhibited significant antiproliferative activity against colorectal and pancreatic cell lines. One specific compound (5-(chloromethyl)-2,2'-bipyridine derivative) displayed significant inhibition of pancreatic tumor growth in vivo in zebrafish-Panc-1 xenografts at a concentration of 8 μM, lower than its in vitro IC50 values, and also inhibited in vivo cancer cell dissemination.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Multidisciplinary
Anastasia Yu Gitlina, Farzaneh Fadaei-Tirani, Albert Ruggi, Carolina Plaice, Kay Severin
Summary: This study demonstrates that fac-Ir(C^N)(3) can be converted into the thermodynamically less stable mer form through a consecutive reaction with acid and base, which is fast, quantitative, and stereoselective and can be reversed by light. This new isomerization process opens up the possibility of using highly luminescent Ir(C^N)(3) complexes as molecular switches.
Review
Chemistry, Inorganic & Nuclear
Federico Droghetti, Fiorella Lucarini, Alessandra Molinari, Albert Ruggi, Mirco Natali
Summary: This article summarizes the information on cobalt polypyridine complexes used for the hydrogen evolution reaction (HER) under light-driven conditions in aqueous solution, highlighting promising chemical motifs and aiming for efficient catalytic activity to stimulate further efforts in designing molecular catalysts for hydrogen production.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Inorganic & Nuclear
Vaibhav Bedi, Dipendu Mandal, Zahid Hussain, Shi-Ming Chen, Yile Wu, Zheng-Wang Qu, Stefan Grimme, Douglas W. Stephan
Summary: The reaction of (tBuO(2)CN)(2) with 9-BBN leads to the formation of a bicyclic heterocyclic compound, while its reactions with BF3 or [Et3Si][B(C6F5)(4)] result in the isolation of different compounds. Computational studies reveal that the steric and electronic properties of the Lewis acid are important in the formation of one of the compounds.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Chisa Itoh, Haruka Yoshino, Taku Kitayama, Wataru Kosaka, Hitoshi Miyasaka
Summary: A new synthetic route for constructing functional paddlewheel diruthenium(II,II) complexes was developed, utilizing Schiff base condensation reactions. The attached Schiff base groups significantly affected the electronic states of the resulting complexes, as revealed by cyclic voltammetry and DFT calculations.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Danrui Ni, Haozhe Wang, Xianghan Xu, Weiwei Xie, Robert J. Cava
Summary: A layered rhombohedral polymorph of indium(iii) triiodide is synthesized at high pressure and temperature. It has an orange color, which is different from ambient pressure InI3, which has a monoclinic molecular structure and a light-yellow color.
DALTON TRANSACTIONS
(2024)
Review
Chemistry, Inorganic & Nuclear
Juan Carlos Perez-Sanchez, Raquel P. Herrera, M. Concepcion Gimeno
Summary: Gold(II) complexes have been less utilized in catalysis compared to their gold(I) and gold(III) counterparts. However, gold(II) complexes offer potential in homo-coupling and cross-coupling reactions, as they are more easily accessible through simplified oxidation and reduction processes. Gold(II) exhibits characteristics of both soft acid gold(I) and hard acid gold(III). This review explores the unique reactivity and potential applications of gold(II) species, highlighting their significance in catalytic transformations.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Nighat Yousuf, Yanping Ma, Qaiser Mahmood, Wenjuan Zhang, Yizhou Wang, Hassan Saeed, Wen-Hua Sun
Summary: In this study, a series of structurally rigid cyclooctyl-fused iminopyridine iron complexes were synthesized and used with methylaluminoxane for isoprene polymerization. The extent of steric hindrance of the ligand framework was found to significantly affect catalytic performance, with less hindrance leading to better activity and stability.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Chenghao Song, Huiwei Du, Menglei Xu, Jie Yang, Xinyu Zhang, Jungan Wang, Yuanfang Zhang, Chengjun Gu, Rui Li, Tao Hong, Jingji Zhang, Jiangying Wang, Yongchun Ye
Summary: This study improves the performance of perovskite solar cells by using a dual-hole transport layer strategy. This strategy enhances the charge transfer efficiency of the transport layer, reduces charge recombination, and improves the quality of the perovskite film layer. Ultimately, the stability of the device is enhanced.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Mahender Singh, Aakash Yadav, Ranjit Singh, Chullikkattil P. Pradeep
Summary: A new aryl selenonium polyoxometalate hybrid was developed and compared with an aryl sulfonium polyoxometalate hybrid in terms of their photocatalytic properties. It was found that the aryl selenonium hybrid exhibited better catalytic performance, which could be attributed to the larger atomic radii of selenium stabilizing the photogenerated electron-hole pair more efficiently. Additionally, the generation of elemental selenium through cleavage of C-Se bonds during catalysis was observed.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Yuhan Xie, Boyu Dong, Xuemin Wang, Siyuan Wang, Jinxi Chen, Yongbing Lou
Summary: This study successfully fabricated visible-light-responsive three-dimensional core-shell CoSe2/ZnIn2S4 heterostructures and achieved attractive activity in photocatalytic hydrogen evolution. The presence of CoSe2 improved light absorption and accelerated charge transfer kinetics. The strong interaction between CoSe2 and ZnIn2S4 reduced charge recombination, further enhancing photocatalytic activity for hydrogen evolution.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Andre L. de O. Batista, Joao Marcos T. Palheta, Mauricio J. Piotrowski, Celso R. C. Rego, Diego Guedes-Sobrinho, Alexandre C. Dias
Summary: This study presents a simulation protocol that provides a solid foundation for exploring two-dimensional materials. Using the TiBr2 2H monolayer as an example, the study reveals its promising properties for optoelectronic and valleytronic applications, including its stability, spin-orbit coupling effects, and optical helicity selection rule.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Jiang Jiang, Zi-Wei Li, Zhi-Zhuan Zhang, Bin Tan, Zhao-Feng Wu, Xiao-Ying Huang
Summary: In this work, two metal organic frameworks (MOFs) containing {Cu2I2} clusters, Eu-CuI-INA and Sr-K-CuI-INA, were synthesized and characterized. Both materials have a three-dimensional structure with {Cu2I2} clusters coordinated by INA(-) ligands and Eu3+ or Sr2+ ions. The Sr-K-CuI-INA material exhibited sensitive fluorescence sensing behaviors towards cysteine and nitro-bearing molecules, showing potential applications in bio and explosive molecule sensing. This work provides a good reference for designing fluorescent MOF probes containing CuI molecules.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Zhiya Lin, Jiasheng Wu, Qianwen Ye, Yulong Chen, Hai Jia, Xiaohui Huang, Shaoming Ying
Summary: Na-ion batteries (NIBs) have attracted great interest as a potential technology for grid-scale energy storage due to the wide distribution, low cost, and environmental friendliness of sodium resources. However, their implementation is hindered by low rate capability and cycling stability caused by the large ionic size of Na+. In this study, a three-dimensional nanoarchitectured coral-like CoSe2@N-doped carbon (CL-CoSe2@NC) was synthesized, and it exhibited improved sodium storage properties with better electrode kinetics and a stable SEI film.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Ya-Qiong Zhang, Yu Zhang, Guoping Zeng, Rong-Zhen Liao, Man Li
Summary: The mechanism and selectivity of CO2 reduction under visible light were investigated using density functional calculations. The results showed that a tetradentate PNNP-type Iridium(III) complex exhibited high activity and selectivity in the reaction.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Sanyukta Ghosh, Shubhanth Jain, Soumya Ranjan Mishra, Gerda Rogl, Peter Rogl, Ernst Bauer, B. S. Murty, A. Govindaraj, Ramesh Chandra Mallik
Summary: In this study, reduced graphene oxide (rGO) was uniformly dispersed in the In0.5Co4Sb12 bulk material by ultrasonication, which effectively reduced the lattice thermal conductivity and improved the thermoelectric efficiency.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Mika Takeuchi, Yutaka Amao
Summary: This study developed an effective visible-light driven system for fumaric acid production using renewable resources such as biomass derivatives, providing an alternative to the current petroleum-based synthesis methods.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Juan Jian, Meiting Wang, Zhuo Wang, Jingwen Meng, Yuqin Yang, Limin Chang
Summary: Developing low-cost and self-supported bifunctional catalysts is crucial for highly efficient water splitting devices. In this study, nano-NiFe2O4 was directly grown onto iron foil surface and Sn4+ was introduced into the NiFe2O4. The resulting Sn-NiFe2O4/IF showed low overpotentials and high current densities during oxygen evolution reaction (OER) and hydrogen evolution reaction (HER), making it a promising catalyst for large-scale hydrogen production.
DALTON TRANSACTIONS
(2024)