1
|
Feizpour S, Hosseini-Yazdi SA, Safarzadeh E, Baradaran B, Dusek M, Poupon M. A novel water-soluble thiosemicarbazone Schiff base ligand and its complexes as potential anticancer agents and cellular fluorescence imaging. J Biol Inorg Chem 2023:10.1007/s00775-023-02001-5. [PMID: 37129705 DOI: 10.1007/s00775-023-02001-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Accepted: 04/12/2023] [Indexed: 05/03/2023]
Abstract
A novel fluorescent ligand (H2LCl⋅1.5CH3OH, 1) was synthesized and metal complexes of 1 with Mn(II), Fe(III), Ni(II), Cu(II), and Zn(II) were obtained as Mn(HL)2Cl2 (2), Fe(HL)2Cl3⋅3H2O (3), Ni(L)(HL)Cl⋅8H2O (4), Cu(HL)Cl2⋅4H2O (5), Zn(H2L)Cl3 (6), respectively. These compounds were identified by spectroscopic methods, elemental analysis, molar conductivity, and single-crystal X-ray crystallography. According to the crystal structure of 4 nickel (II), center is surrounded by two ligands in a distorted octahedral geometry. The ligand and its complexes are soluble in water and have excellent stability. In vitro anti-proliferative activity of these compounds was evaluated against human breast adenocarcinoma (MCF-7) and human lipo-sarcoma (SW-872) as cancer cells and human fibroblasts (HFF-2) as normal cells by MTT assay. Interestingly, complex 5 exhibited excellent activity against both cancer cells with low IC50 value 22.18 ± 0.35 μg/mL (35.66 ± 0.56 μM) for SW-872 and 79.41 ± 3.54 μg/mL (127.6 ± 5.69 μM) for MCF-7 among the compounds and in comparison with paclitaxel (PTX) which acts finely. Morphological changes were evaluated by flow cytometry that revealed apoptosis is the main cause of cell death. Likewise, cell cycle studies indicated the cell cycle arrest in the G1 and S phases for complex 5 against MCF-7 and SW-872 cancer cells, while complex 6 could arrest the MCF-7 and SW-872 cells in G2 and G1 phases, respectively. All of the compounds are fluorescent which enabled us to monitor the uptake and intracellular distribution in living human cancer cells by fluorescence microscopy.
Collapse
Affiliation(s)
- Sima Feizpour
- Department of Inorganic Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, 51666-14766, Iran
| | | | - Elham Safarzadeh
- Department of Microbiology and Immunology, Faculty of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Behzad Baradaran
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, 5166614731, Iran
| | - Michal Dusek
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 21, Prague 8, Czech Republic
| | - Morgane Poupon
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 21, Prague 8, Czech Republic
| |
Collapse
|
2
|
Xie M, Zhao J, Mai X, Chen Y, Zhao W, Sun M, Yu L, Yu HJ. A dual-function luminescent probe for copper(II) ions and pH detection based on ruthenium(II) complex. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 277:121265. [PMID: 35439674 DOI: 10.1016/j.saa.2022.121265] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 04/05/2022] [Accepted: 04/10/2022] [Indexed: 06/14/2023]
Abstract
A new ruthenium complex-based luminescent probe Ru-impa for Cu2+ and pH detection has been synthesized and characterized. Ru-impa could rapidly and selectively detect Cu2+ in aqueous solutions and the working pH ranges from weakly acidic to alkaline. The detection limit calculated using the S/N and S/B ratio was 24.7 nM and 3.4 μM, respectively. The test strips for practical detecting application were also prepared and the actual detection limit in drinking water was found to be 3 μM, which is lower than the WHO-guided drinking water limit (30 µM) and the upper limit of human serum free copper content (1.7-3.9 μM). Luminescence imaging study showed that Ru-impa could monitor Cu2+ level fluctuation in the cells. In addition, Ru-impa also shows a sensitive on-off luminescence response when pH > 10, indicating that it can also be used as a pH sensor under extremely alkaline conditions.
Collapse
Affiliation(s)
- Mengting Xie
- Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, PR China
| | - Jiecheng Zhao
- Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, PR China
| | - Xufeng Mai
- Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, PR China
| | - Yan Chen
- Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, PR China
| | - Wei Zhao
- Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, PR China
| | - Ming Sun
- Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, PR China
| | - Lin Yu
- Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, PR China
| | - Hui-Juan Yu
- Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, PR China.
| |
Collapse
|
3
|
Schwehr BJ, Hartnell D, Massi M, Hackett MJ. Luminescent Metal Complexes as Emerging Tools for Lipid Imaging. Top Curr Chem (Cham) 2022; 380:46. [PMID: 35976575 PMCID: PMC9385838 DOI: 10.1007/s41061-022-00400-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Accepted: 06/20/2022] [Indexed: 12/01/2022]
Abstract
Fluorescence microscopy is a key tool in the biological sciences, which finds use as a routine laboratory technique (e.g., epifluorescence microscope) or more advanced confocal, two-photon, and super-resolution applications. Through continued developments in microscopy, and other analytical methods, the importance of lipids as constituents of subcellular organelles, signalling or regulating molecules continues to emerge. The increasing recognition of the importance of lipids to fundamental cell biology (in health and disease) has prompted the development of protocols and techniques to image the distribution of lipids in cells and tissues. A diverse suite of spectroscopic and microscopy tools are continuously being developed and explored to add to the "toolbox" to study lipid biology. A relatively recent breakthrough in this field has been the development and subsequent application of metal-based luminescent complexes for imaging lipids in biological systems. These metal-based compounds appear to offer advantages with respect to their tunability of the photophysical properties, in addition to capabilities centred around selectively targeting specific lipid structures or classes of lipids. The presence of the metal centre also opens the path to alternative imaging modalities that might not be applicable to traditional organic fluorophores. This review examines the current progress and developments in metal-based luminescent complexes to study lipids, in addition to exploring potential new avenues and challenges for the field to take.
Collapse
Affiliation(s)
- Bradley J Schwehr
- School of Molecular and Life Sciences, Curtin University, Perth, WA, 6845, Australia
| | - David Hartnell
- School of Molecular and Life Sciences, Curtin University, Perth, WA, 6845, Australia.,Curtin Health Innovation Research Institute, Curtin University, Perth, WA, 6845, Australia
| | - Massimiliano Massi
- School of Molecular and Life Sciences, Curtin University, Perth, WA, 6845, Australia.
| | - Mark J Hackett
- School of Molecular and Life Sciences, Curtin University, Perth, WA, 6845, Australia. .,Curtin Health Innovation Research Institute, Curtin University, Perth, WA, 6845, Australia.
| |
Collapse
|
4
|
Wen MH, Xie X, Huang PS, Yang K, Chen TY. Crossroads between membrane trafficking machinery and copper homeostasis in the nerve system. Open Biol 2021; 11:210128. [PMID: 34847776 PMCID: PMC8633785 DOI: 10.1098/rsob.210128] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Imbalanced copper homeostasis and perturbation of membrane trafficking are two common symptoms that have been associated with the pathogenesis of neurodegenerative and neurodevelopmental diseases. Accumulating evidence from biophysical, cellular and in vivo studies suggest that membrane trafficking orchestrates both copper homeostasis and neural functions-however, a systematic review of how copper homeostasis and membrane trafficking interplays in neurons remains lacking. Here, we summarize current knowledge of the general trafficking itineraries for copper transporters and highlight several critical membrane trafficking regulators in maintaining copper homeostasis. We discuss how membrane trafficking regulators may alter copper transporter distribution in different membrane compartments to regulate intracellular copper homeostasis. Using Parkinson's disease and MEDNIK as examples, we further elaborate how misregulated trafficking regulators may interplay parallelly or synergistically with copper dyshomeostasis in devastating pathogenesis in neurodegenerative diseases. Finally, we explore multiple unsolved questions and highlight the existing challenges to understand how copper homeostasis is modulated through membrane trafficking.
Collapse
Affiliation(s)
- Meng-Hsuan Wen
- Department of Chemistry, University of Houston, Houston, TX 77204, USA
| | - Xihong Xie
- Department of Chemistry, University of Houston, Houston, TX 77204, USA
| | - Pei-San Huang
- Department of Chemistry, University of Houston, Houston, TX 77204, USA
| | - Karen Yang
- Department of Molecular Biology, Princeton University, Princeton, NJ 08544, USA
| | - Tai-Yen Chen
- Department of Chemistry, University of Houston, Houston, TX 77204, USA
| |
Collapse
|
5
|
Priessner M, Summers PA, Lewis BW, Sastre M, Ying L, Kuimova MK, Vilar R. Selective Detection of Cu
+
Ions in Live Cells via Fluorescence Lifetime Imaging Microscopy. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202109349] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Martin Priessner
- Department of Chemistry Imperial College London White City Campus London W12 0BZ UK
| | - Peter A. Summers
- Department of Chemistry Imperial College London White City Campus London W12 0BZ UK
| | - Benjamin W. Lewis
- Department of Chemistry Imperial College London White City Campus London W12 0BZ UK
| | - Magdalena Sastre
- Department of Brain Sciences Imperial College London Hammersmith Campus London W12 0NN UK
| | - Liming Ying
- National Heart and Lung Institute Molecular Sciences Research Hub White City Campus Imperial College London London W12 0BZ UK
| | - Marina K. Kuimova
- Department of Chemistry Imperial College London White City Campus London W12 0BZ UK
| | - Ramon Vilar
- Department of Chemistry Imperial College London White City Campus London W12 0BZ UK
| |
Collapse
|
6
|
Priessner M, Summers PA, Lewis BW, Sastre M, Ying L, Kuimova MK, Vilar R. Selective Detection of Cu + Ions in Live Cells via Fluorescence Lifetime Imaging Microscopy. Angew Chem Int Ed Engl 2021; 60:23148-23153. [PMID: 34379368 PMCID: PMC8596571 DOI: 10.1002/anie.202109349] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Indexed: 11/06/2022]
Abstract
Copper is an essential trace element in living organisms with its levels and localisation being carefully managed by the cellular machinery. However, if misregulated, deficiency or excess of copper ions can lead to several diseases. Therefore, it is important to have reliable methods to detect, monitor and visualise this metal in cells. Herein we report a new optical probe based on BODIPY, which shows a switch-on in its fluorescence intensity upon binding to copper(I), but not in the presence of high concentration of other physiologically relevant metal ions. More interestingly, binding to copper(I) leads to significant changes in the fluorescence lifetime of the new probe, which can be used to visualize copper(I) pools in lysosomes of live cells via fluorescence lifetime imaging microscopy (FLIM).
Collapse
Affiliation(s)
- Martin Priessner
- Department of ChemistryImperial College LondonWhite City CampusLondonW12 0BZUK
| | - Peter A. Summers
- Department of ChemistryImperial College LondonWhite City CampusLondonW12 0BZUK
| | - Benjamin W. Lewis
- Department of ChemistryImperial College LondonWhite City CampusLondonW12 0BZUK
| | - Magdalena Sastre
- Department of Brain SciencesImperial College LondonHammersmith CampusLondonW12 0NNUK
| | - Liming Ying
- National Heart and Lung InstituteMolecular Sciences Research HubWhite City CampusImperial College LondonLondonW12 0BZUK
| | - Marina K. Kuimova
- Department of ChemistryImperial College LondonWhite City CampusLondonW12 0BZUK
| | - Ramon Vilar
- Department of ChemistryImperial College LondonWhite City CampusLondonW12 0BZUK
| |
Collapse
|
7
|
Calabrò M, Rinaldi C, Santoro G, Crisafulli C. The biological pathways of Alzheimer disease: a review. AIMS Neurosci 2020; 8:86-132. [PMID: 33490374 PMCID: PMC7815481 DOI: 10.3934/neuroscience.2021005] [Citation(s) in RCA: 97] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 11/23/2020] [Indexed: 12/18/2022] Open
Abstract
Alzheimer disease is a progressive neurodegenerative disorder, mainly affecting older people, which severely impairs patients' quality of life. In the recent years, the number of affected individuals has seen a rapid increase. It is estimated that up to 107 million subjects will be affected by 2050 worldwide. Research in this area has revealed a lot about the biological and environmental underpinnings of Alzheimer, especially its correlation with β-Amyloid and Tau related mechanics; however, the precise molecular events and biological pathways behind the disease are yet to be discovered. In this review, we focus our attention on the biological mechanics that may lie behind Alzheimer development. In particular, we briefly describe the genetic elements and discuss about specific biological processes potentially associated with the disease.
Collapse
Affiliation(s)
| | | | | | - Concetta Crisafulli
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, Italy
| |
Collapse
|
8
|
Noor A, Hayne DJ, Lim S, Van Zuylekom JK, Cullinane C, Roselt PD, McLean CA, White JM, Donnelly PS. Copper Bis(thiosemicarbazonato)-stilbenyl Complexes That Bind to Amyloid-β Plaques. Inorg Chem 2020; 59:11658-11669. [PMID: 32799487 DOI: 10.1021/acs.inorgchem.0c01520] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Alzheimer's disease is characterized by the presence of extracellular amyloid-β plaques. Positron emission tomography (PET) imaging with tracers radiolabeled with positron-emitting radionuclides that bind to amyloid-β plaques can assist in the diagnosis of Alzheimer's disease. With the goal of designing new imaging agents radiolabeled with positron-emitting copper-64 radionuclides that bind to amyloid-β plaques, a family of bis(thiosemicarbazone) ligands with appended substituted stilbenyl functional groups has been prepared. The ligands form charge-neutral and stable complexes with copper(II). The new ligands can be radiolabeled with copper-64 at room temperature. Two lead complexes were demonstrated to bind to amyloid-β plaques present in post-mortem brain tissue from subjects with clinically diagnosed Alzheimer's disease and crossed the blood-brain barrier in mice. The work presented here provides strategies to prepare compounds with radionuclides of copper that can be used for targeted brain PET imaging.
Collapse
Affiliation(s)
| | | | | | | | | | | | - Catriona A McLean
- Department of Anatomical Pathology, The Alfred Hospital, Victoria 3181, Australia
| | | | | |
Collapse
|
9
|
Paterson BM, Cullinane C, Crouch PJ, White AR, Barnham KJ, Roselt PD, Noonan W, Binns D, Hicks RJ, Donnelly PS. Modification of Biodistribution and Brain Uptake of Copper Bis(thiosemicarbazonato) Complexes by the Incorporation of Amine and Polyamine Functional Groups. Inorg Chem 2019; 58:4540-4552. [PMID: 30869878 DOI: 10.1021/acs.inorgchem.9b00117] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The synthesis of new bis(thiosemicarbazonato)copper(II) complexes featuring polyamine substituents via selective transamination reactions is presented. Polyamines of different lengths, with different ionizable substituent groups, were used to modify and adjust the hydrophilic/lipophilic balance of the copper complexes. The new analogues were radiolabeled with copper-64 and their lipophilicities estimated using distribution coefficients. The cell uptake of the new polyamine complexes was investigated with preliminary in vitro biological studies using a neuroblastoma cancer cell line. The in vivo biodistribution of three of the new analogues was investigated in vivo in mice using positron-emission tomography imaging, and one of the new complexes was compared to [64Cu]Cu(atsm) in an A431 squamous cell carcinoma xenograft model. Modification of the copper complexes with various amine-containing functional groups alters the biodistribution of the complexes in mice. One complex, with a pendent ( N, N-dimethylamino)ethane functional group, displayed tumor uptake similar to that of [64Cu]Cu(atsm) but higher brain uptake, suggesting that this compound has the potential to be of use in the diagnostic brain imaging of tumors and neurodegenerative diseases.
Collapse
Affiliation(s)
| | - Carleen Cullinane
- The Centre for Molecular Imaging and Translational Research Laboratory , The Peter MacCallum Cancer Centre , Melbourne , Victoria 3000 , Australia
| | | | | | | | - Peter D Roselt
- The Centre for Molecular Imaging and Translational Research Laboratory , The Peter MacCallum Cancer Centre , Melbourne , Victoria 3000 , Australia
| | - Wayne Noonan
- The Centre for Molecular Imaging and Translational Research Laboratory , The Peter MacCallum Cancer Centre , Melbourne , Victoria 3000 , Australia
| | - David Binns
- The Centre for Molecular Imaging and Translational Research Laboratory , The Peter MacCallum Cancer Centre , Melbourne , Victoria 3000 , Australia
| | - Rodney J Hicks
- The Centre for Molecular Imaging and Translational Research Laboratory , The Peter MacCallum Cancer Centre , Melbourne , Victoria 3000 , Australia
| | | |
Collapse
|
10
|
Sirois JJ, Padgitt-Cobb L, Gallegos MA, Beckman JS, Beaudry CM, Hurst JK. Oxidative Release of Copper from Pharmacologic Copper Bis(thiosemicarbazonato) Compounds. Inorg Chem 2018; 57:8923-8932. [DOI: 10.1021/acs.inorgchem.8b00853] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
11
|
Zhang H, Wei Z, Xia Y, Fang M, Zhu W, Yang X, Li F, Tian Y, Zhang X, Zhou H. Exploration research on synthesis and application of a new dye containing di-2-picolyamine. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 196:256-261. [PMID: 29454254 DOI: 10.1016/j.saa.2018.02.023] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2017] [Revised: 02/01/2018] [Accepted: 02/07/2018] [Indexed: 06/08/2023]
Abstract
A newly designed fluorescence dye L based on di-2-picolyamine (DPA) moiety as a chelator was obtained under the protection of N2 at 120°C, and KI as catalyst with relatively better yield. More interestingly, L not only could selectively and sensitively detect Cu2+ ions in aqueous medium but also examine the Cu2+ ions of the actual water samples. Nevertheless, L could be visual in Hela cells with excellent cell permeability, viz, monitoring exogenous Cu2+ ions as well as realizing an "on-off-on" process.
Collapse
Affiliation(s)
- Huihui Zhang
- College of Chemistry and Chemical Engineering, Anhui University and Key Labotatory of Functional Inorganic Materials Chemistry of Anhui Province, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, 230601 Hefei, PR China
| | - Zeyue Wei
- College of Chemistry and Chemical Engineering, Anhui University and Key Labotatory of Functional Inorganic Materials Chemistry of Anhui Province, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, 230601 Hefei, PR China
| | - Ying Xia
- College of Chemistry and Chemical Engineering, Anhui University and Key Labotatory of Functional Inorganic Materials Chemistry of Anhui Province, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, 230601 Hefei, PR China
| | - Min Fang
- College of Chemistry and Chemical Engineering, Anhui University and Key Labotatory of Functional Inorganic Materials Chemistry of Anhui Province, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, 230601 Hefei, PR China
| | - Weiju Zhu
- College of Chemistry and Chemical Engineering, Anhui University and Key Labotatory of Functional Inorganic Materials Chemistry of Anhui Province, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, 230601 Hefei, PR China
| | - Xingyuan Yang
- Faculty of Health Science, Anhui University, Hefei 230601, PR China
| | - Fei Li
- College of Chemistry and Chemical Engineering, Anhui University and Key Labotatory of Functional Inorganic Materials Chemistry of Anhui Province, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, 230601 Hefei, PR China
| | - Yupeng Tian
- College of Chemistry and Chemical Engineering, Anhui University and Key Labotatory of Functional Inorganic Materials Chemistry of Anhui Province, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, 230601 Hefei, PR China
| | - Xuanjun Zhang
- Faculty of Health Science, University of Macau, Taipa, Macau, SAR, PR China
| | - Hongping Zhou
- College of Chemistry and Chemical Engineering, Anhui University and Key Labotatory of Functional Inorganic Materials Chemistry of Anhui Province, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, 230601 Hefei, PR China.
| |
Collapse
|
12
|
Wang Y, Yao H, Zhou J, Hong Y, Chen B, Zhang B, Smith TA, Wong WWH, Zhao Z. A water-soluble, AIE-active polyelectrolyte for conventional and fluorescence lifetime imaging of mouse neuroblastoma neuro-2A cells. ACTA ACUST UNITED AC 2018. [DOI: 10.1002/pola.28943] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Yinan Wang
- College of Material, Chemistry and Chemical Engineering; Hangzhou Normal University; Hangzhou 310036 People's Republic of China
| | - Hongming Yao
- College of Material, Chemistry and Chemical Engineering; Hangzhou Normal University; Hangzhou 310036 People's Republic of China
| | - Jian Zhou
- College of Material, Chemistry and Chemical Engineering; Hangzhou Normal University; Hangzhou 310036 People's Republic of China
| | - Yuning Hong
- Department of Chemistry and Physics; La Trobe University; Victoria 3086 Australia
| | - Bin Chen
- State Key Laboratory of Luminescent Materials and Devices; South China University of Technology; Guangzhou 510640 People's Republic of China
| | - Bolong Zhang
- School of Chemistry; The University of Melbourne; Victoria 3010 Australia
| | - Trevor A. Smith
- School of Chemistry; The University of Melbourne; Victoria 3010 Australia
| | - Wallace W. H. Wong
- School of Chemistry; The University of Melbourne; Victoria 3010 Australia
| | - Zujin Zhao
- State Key Laboratory of Luminescent Materials and Devices; South China University of Technology; Guangzhou 510640 People's Republic of China
| |
Collapse
|
13
|
Thakur N, Pandey MD, Pandey R. A uniquely fabricated Cu(ii)-metallacycle as a reusable highly sensitive dual-channel and practically functional metalloreceptor for Fe3+ and Ca2+ ions: an inorganic site of cation detection. NEW J CHEM 2018. [DOI: 10.1039/c7nj03294c] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Dimeric Cu(ii)-complex developed from disulfane ligand, serves as dual-channel metalloreceptor for Fe3+/Ca2+ and detection of Fe3+ in real water samples.
Collapse
Affiliation(s)
- Neha Thakur
- Department of Chemistry
- Dr. Harisingh Gour Central University
- Sagar
- India
| | | | - Rampal Pandey
- Department of Chemistry
- Dr. Harisingh Gour Central University
- Sagar
- India
| |
Collapse
|
14
|
Matesanz AI, Jimenez-Faraco E, Ruiz MC, Balsa LM, Navarro-Ranninger C, León IE, Quiroga AG. Mononuclear Pd(ii) and Pt(ii) complexes with an α-N-heterocyclic thiosemicarbazone: cytotoxicity, solution behaviour and interaction versus proven models from biological media. Inorg Chem Front 2018. [DOI: 10.1039/c7qi00446j] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Pd(ii) and P(ii) thiosemicarbazone complexes with high selectivity towards cancer cells and a novel biological interaction profile.
Collapse
Affiliation(s)
- Ana I. Matesanz
- Dept. Química Inorgánica and IAdChem (Institute for Advanced Research in Chemical Science) Universidad Autónoma de Madrid
- 28045 Madrid
- Spain
| | - Eva Jimenez-Faraco
- Dept. Química Inorgánica and IAdChem (Institute for Advanced Research in Chemical Science) Universidad Autónoma de Madrid
- 28045 Madrid
- Spain
| | - María C. Ruiz
- Centro de Química Inorgánica (CEQUINOR
- CONICET)
- Facultad de Ciencias Exactas
- Universidad Nacional de La Plata
- 1900 La Plata
| | - Lucia M. Balsa
- Centro de Química Inorgánica (CEQUINOR
- CONICET)
- Facultad de Ciencias Exactas
- Universidad Nacional de La Plata
- 1900 La Plata
| | - Carmen Navarro-Ranninger
- Dept. Química Inorgánica and IAdChem (Institute for Advanced Research in Chemical Science) Universidad Autónoma de Madrid
- 28045 Madrid
- Spain
| | - Ignacio E. León
- Centro de Química Inorgánica (CEQUINOR
- CONICET)
- Facultad de Ciencias Exactas
- Universidad Nacional de La Plata
- 1900 La Plata
| | - Adoracion G. Quiroga
- Dept. Química Inorgánica and IAdChem (Institute for Advanced Research in Chemical Science) Universidad Autónoma de Madrid
- 28045 Madrid
- Spain
| |
Collapse
|
15
|
Electron paramagnetic resonance microscopy using spins in diamond under ambient conditions. Nat Commun 2017; 8:458. [PMID: 28878240 PMCID: PMC5587709 DOI: 10.1038/s41467-017-00466-y] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Accepted: 06/30/2017] [Indexed: 11/08/2022] Open
Abstract
Magnetic resonance spectroscopy is one of the most important tools in chemical and bio-medical research. However, sensitivity limitations typically restrict imaging resolution to ~ 10 µm. Here we bring quantum control to the detection of chemical systems to demonstrate high-resolution electron spin imaging using the quantum properties of an array of nitrogen-vacancy centres in diamond. Our electron paramagnetic resonance microscope selectively images electronic spin species by precisely tuning a magnetic field to bring the quantum probes into resonance with the external target spins. This provides diffraction limited spatial resolution of the target spin species over a field of view of 50 × 50 µm2 with a spin sensitivity of 104 spins per voxel or ∼100 zmol. The ability to perform spectroscopy and dynamically monitor spin-dependent redox reactions at these scales enables the development of electron spin resonance and zepto-chemistry in the physical and life sciences.Electron paramagnetic resonance spectroscopy has important scientific and medical uses but improving the resolution of conventional methods requires cryogenic, vacuum environments. Simpson et al. show nitrogen vacancy centres can be used for sub-micronmetre imaging with improved sensitivity in ambient conditions.
Collapse
|
16
|
Syntheses, structures, and electrochemical studies of N,N′-bis(alkylthiocarbamate)butane-2,3-diimine Cu(II) complexes as pendent alkoxy derivatives of Cu(ATSM). Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2017.02.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
|
17
|
Syntheses, characterizations and third-order NLO properties of a series of Ni(II), Cu(II) and Zn(II) complexes using a novel S-benzyldithiocarbazate ligand. Polyhedron 2017. [DOI: 10.1016/j.poly.2016.09.025] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
|
18
|
González-García C, Mendiola MA, Perles J, López-Torres E. Structural diversity and supramolecular architectures of Zn(ii), Cu(ii) and Ni(ii) complexes by selective control of the degree of deprotonation of diacetyl bis(4-isopropyl-3-thiosemicarbazone). CrystEngComm 2017. [DOI: 10.1039/c6ce02488b] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
19
|
Gupta AK, Dhir A, Pradeep CP. Multifunctional Zn(II) Complexes: Photophysical Properties and Catalytic Transesterification toward Biodiesel Synthesis. Inorg Chem 2016; 55:7492-500. [PMID: 27439021 DOI: 10.1021/acs.inorgchem.6b00804] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Using 4-substituted derivatives of phenol-based compartmental Schiff-base hydroxyl-rich ligand, four multifunctional binuclear Zn(II) complexes have been synthesized and characterized. The photophysical properties of these complexes were explored in the solid state, in solutions, and in poly(methyl methacrylate) (PMMA) matrix, which revealed their good potential as tunable solid state emitters. Some of these complexes acted as efficient catalysts for the transesterification of esters and canola oil showing their potential in biodiesel generation. Mechanistic investigations using ESI-MS revealed that the transesterification catalyzed by these complexes proceeds through two types of acyl intermediates.
Collapse
Affiliation(s)
- Abhishek Kumar Gupta
- School of Basic Sciences, Indian Institute of Technology Mandi , Kamand 175 005, Himachal Pradesh, India
| | - Abhimanew Dhir
- School of Basic Sciences, Indian Institute of Technology Mandi , Kamand 175 005, Himachal Pradesh, India
| | - Chullikkattil P Pradeep
- School of Basic Sciences, Indian Institute of Technology Mandi , Kamand 175 005, Himachal Pradesh, India
| |
Collapse
|