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One step construction of an electrochemical sensor for melamine detection in milk towards an integrated portable system. Food Chem 2022; 383:132403. [PMID: 35158131 DOI: 10.1016/j.foodchem.2022.132403] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Revised: 01/28/2022] [Accepted: 02/07/2022] [Indexed: 12/27/2022]
Abstract
Excessive intake of melamine (MEL) can be harmful to human health, and it is important to establish a rapid and accurate MEL detection method. As the electrochemical activity of MEL is very low, ferrocenylglutathione (Fc-ECG) was used as an electron transfer mediator to assist with the detection of MEL using screen-printed carbon electrode (SPCE). This modified electrode (MEL/Fc-ECG/SPCE) was prepared by stepwise drop-casting and was fully characterized. Results showed that MEL significantly enhanced signal of Fc-ECG/SPCE sensor due to the three p-π conjugated double bonds that facilitated electron transfer. Under optimal conditions, the sensor exhibits two linearities in the range of 0.20-2.00 μM and 8.00-800 μM, with a sensitivity of 15.03 μA·μM-1·cm-2. The selectivity, stability, and reproducibility were investigated and successfully used to detect MEL in raw milk and confirms safety verification of foods. Moreover, a portable testing platform was designed for MEL detection based on a CH32 chip.
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Fan YR, Wang BJ, Jia DG, Yang XB, Huang Y. Synthesis, electrochemistry, DNA binding and in vitro cytotoxic activity of tripodal ferrocenyl bis-naphthalimide derivatives. J Inorg Biochem 2021; 219:111425. [PMID: 33831713 DOI: 10.1016/j.jinorgbio.2021.111425] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 03/03/2021] [Accepted: 03/10/2021] [Indexed: 01/16/2023]
Abstract
A series of tripodal ferrocenyl bis-naphthalimide derivatives were synthesized and characterized. All of the bis-naphthalimide derivatives exhibited good DNA binding ability which was confirmed by ethidium bromide (EB) displacement experiment and ultraviolet (UV)-visible absorption titration. And the binding mode of these compounds was proved to be a hybrid binding mode by experiments. The cytotoxicity of synthesized compounds against 4 different human cancer cell lines (EC109, BGC823, SGC7901 and HEPG2) was evaluated by thiazolyl blue tetrazolium bromide (MTT) assay. All of the bis-naphthalimide derivatives exhibited good anticancer activity than the positive control drug (amonafide), which was due to the promotion of reactive oxygen species (ROS) level in test cancer cells by the reversible one-electron redox process of ferrocenyl bis-naphthalimide derivatives. Although there was no obvious relationship between the binding constants and the chain length, the structure cytotoxicity relationship revealed that the linker of n = 3, m = 1 was the best choice for the tested tripodol bis-naphthalimide derivatives. SYNOPSIS: A series of tripodal ferrocenyl bis-naphthalimide derivatives were synthesized to study the DNA binding ability and the cytotoxicity induced by reactive oxygen species. All of the compounds exhibited good DNA binding ability. And the structure cytotoxicity relationship revealed that the structure of 5h was the best choice.
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Affiliation(s)
- Yan-Ru Fan
- Key Laboratory of Hui Ethnic Medicine Modernization, Ministry of Education, Ningxia Engineering and Technology Research Center of Characteristic Chinese Medicine Modernization, College of Pharmacy, Ningxia Medical University, Yinchuan 750004, PR China
| | - Bo-Jin Wang
- Key Laboratory of Hui Ethnic Medicine Modernization, Ministry of Education, Ningxia Engineering and Technology Research Center of Characteristic Chinese Medicine Modernization, College of Pharmacy, Ningxia Medical University, Yinchuan 750004, PR China
| | - Deng-Guo Jia
- Key Laboratory of Hui Ethnic Medicine Modernization, Ministry of Education, Ningxia Engineering and Technology Research Center of Characteristic Chinese Medicine Modernization, College of Pharmacy, Ningxia Medical University, Yinchuan 750004, PR China
| | - Xin-Bin Yang
- Southwest University, Rongchang Campus, Chongqing 402460, PR China
| | - Yu Huang
- Key Laboratory of Hui Ethnic Medicine Modernization, Ministry of Education, Ningxia Engineering and Technology Research Center of Characteristic Chinese Medicine Modernization, College of Pharmacy, Ningxia Medical University, Yinchuan 750004, PR China.
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The Cytotoxic Effect of Newly Synthesized Ferrocenes against Cervical Carcinoma Cells Alone and in Combination with Radiotherapy. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10113728] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Cervical cancer is one of the most common types of cancer in women, with approximately 500,000 new cases and 250,000 deaths every year. Radiotherapy combined with chemotherapy represents the treatment of choice for advanced cervical carcinomas. The role of the chemotherapy is to increase the sensitivity of the cancer cells to irradiation. Cisplatin, the most commonly used drug for this purpose, has its limitations. Thus, we used a family of ferrocene derivatives (in addition, one new species was prepared using standard Schlenk techniques) and studied their effects on cervical cancer cells alone and in combination with irradiation. We applied colorimetric assay to determine the cytotoxicity of the compounds; flow cytometry to analyze the production of reactive oxygen species (ROS), cell cycle, and mitochondrial membrane potential (MMP); immunochemistry to study protein expression; and colony forming assay to evaluate changes in radiosensitivity. Treatment with ferrocenes exhibited significant cytotoxicity against cervical cancer cells, associated with increasing ROS production and MMP changes, suggesting the induction of apoptosis. The combined activity of ferrocenes and ionizing radiation highlighted ferrocenes as potential radiosensitizing drugs, while their higher single-agent toxicity in comparison with routinely used cisplatin could also be promising. Our results demonstrate antitumor activity of several tested ferrocenes both alone and in combination with radiotherapy.
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Aminobenzosuberone derivatives as PfA-M1 inhibitors: Molecular recognition and antiplasmodial evaluation. Bioorg Chem 2020; 98:103750. [DOI: 10.1016/j.bioorg.2020.103750] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 01/27/2020] [Accepted: 03/09/2020] [Indexed: 12/16/2022]
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Gelle D, Lamač M, Mach K, Šimková L, Gyepes R, Sommerová L, Martišová A, Bartošík M, Vaculovič T, Kanický V, Hrstka R, Pinkas J. Enhanced Intracellular Accumulation and Cytotoxicity of Ferrocene‐Ruthenium Arene Conjugates. Chempluschem 2020. [DOI: 10.1002/cplu.202000022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Donát Gelle
- J. Heyrovský Institute of Physical ChemistryAcademy of Sciences of the Czech Republic v.v.i. Dolejškova 2155/3 182 23 Prague 8 Czech Republic
- Department of ChemistryFaculty of EducationJ. Selye University Bratislavská cesta 3322 945 01 Komárno Slovak Republic
| | - Martin Lamač
- J. Heyrovský Institute of Physical ChemistryAcademy of Sciences of the Czech Republic v.v.i. Dolejškova 2155/3 182 23 Prague 8 Czech Republic
| | - Karel Mach
- J. Heyrovský Institute of Physical ChemistryAcademy of Sciences of the Czech Republic v.v.i. Dolejškova 2155/3 182 23 Prague 8 Czech Republic
| | - Ludmila Šimková
- J. Heyrovský Institute of Physical ChemistryAcademy of Sciences of the Czech Republic v.v.i. Dolejškova 2155/3 182 23 Prague 8 Czech Republic
| | - Róbert Gyepes
- J. Heyrovský Institute of Physical ChemistryAcademy of Sciences of the Czech Republic v.v.i. Dolejškova 2155/3 182 23 Prague 8 Czech Republic
- Department of ChemistryFaculty of EducationJ. Selye University Bratislavská cesta 3322 945 01 Komárno Slovak Republic
| | - Lucia Sommerová
- Regional Centre for Applied Molecular OncologyMasaryk Memorial Cancer Institute Žlutý kopec 7 65653 Brno Czech Republic
| | - Andrea Martišová
- Regional Centre for Applied Molecular OncologyMasaryk Memorial Cancer Institute Žlutý kopec 7 65653 Brno Czech Republic
| | - Martin Bartošík
- Regional Centre for Applied Molecular OncologyMasaryk Memorial Cancer Institute Žlutý kopec 7 65653 Brno Czech Republic
| | - Tomáš Vaculovič
- Department of ChemistryFaculty of ScienceMasaryk University Kamenice 753/5 62500 Brno Czech Republic
| | - Viktor Kanický
- Department of ChemistryFaculty of ScienceMasaryk University Kamenice 753/5 62500 Brno Czech Republic
| | - Roman Hrstka
- Regional Centre for Applied Molecular OncologyMasaryk Memorial Cancer Institute Žlutý kopec 7 65653 Brno Czech Republic
| | - Jiří Pinkas
- J. Heyrovský Institute of Physical ChemistryAcademy of Sciences of the Czech Republic v.v.i. Dolejškova 2155/3 182 23 Prague 8 Czech Republic
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Peñalver R, Campillo N, López-García I, Hernández-Córdoba M. Solid-phase microextraction for the determination of iron organic compounds in seawaters and soils by gas chromatography coupled to microwave-induced plasma with atomic emission detection spectrometry. Microchem J 2020. [DOI: 10.1016/j.microc.2020.104630] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Skoupilova H, Bartosik M, Sommerova L, Pinkas J, Vaculovic T, Kanicky V, Karban J, Hrstka R. Ferrocenes as new anticancer drug candidates: Determination of the mechanism of action. Eur J Pharmacol 2020; 867:172825. [DOI: 10.1016/j.ejphar.2019.172825] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Revised: 11/15/2019] [Accepted: 11/22/2019] [Indexed: 12/18/2022]
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Kaneyoshi S, Zou T, Ozaki S, Takeuchi R, Udou A, Nakahara T, Fujimoto K, Fujii S, Sato S, Takenaka S. Cyclic Naphthalene Diimide with a Ferrocene Moiety as a Redox-Active Tetraplex-DNA Ligand. Chemistry 2019; 26:139-142. [PMID: 31680317 DOI: 10.1002/chem.201903883] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2019] [Revised: 10/27/2019] [Indexed: 12/31/2022]
Abstract
Cyclic naphthalene diimides (cNDIs), with a ferrocene moiety (cFNDs) and different linker lengths between the ferrocene and cNDI moieties, were designed and synthesized as redox-active, tetraplex-DNA ligands. Intramolecular stacking was observed between ferrocene and the NDI planes, which could affect the binding properties for G-quadruplexes. Interestingly, the circular dichroism spectrum of one of these compounds clearly shows new Cotton effects around 320-380 and 240 nm, which can be considered a direct evidence of intramolecular stacking of ferrocene and the NDI. Regarding recognition of hybrid G-quadruplexes, the less rigid structures (longer linkers) show higher binding affinity (106 m-1 order of magnitude). All new compounds show higher selectivity for G4 during electrochemical detection than noncyclic FND derivatives, which further identifies the redox-active potentiality of the cFNDs. Two of the three compounds tested even show preferential inhibition of cell growth in cancer cells over normal cells in a low concentration range, highlighting the potential for bioapplications of these cFNDs.
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Affiliation(s)
- Shuma Kaneyoshi
- Department of Applied Chemistry, Kyushu Institute of Technology, Fukuoka, 804-8550, Japan
| | - Tingting Zou
- Department of Applied Chemistry, Kyushu Institute of Technology, Fukuoka, 804-8550, Japan.,Research Center for Bio-microsensing Technology, Kyushu Institute of Technology, Fukuoka, 804-8550, Japan
| | - Shunsuke Ozaki
- Department of Applied Chemistry, Kyushu Institute of Technology, Fukuoka, 804-8550, Japan
| | - Ryusuke Takeuchi
- Department of Applied Chemistry, Kyushu Institute of Technology, Fukuoka, 804-8550, Japan
| | - Ayano Udou
- Department of Applied Chemistry, Kyushu Institute of Technology, Fukuoka, 804-8550, Japan
| | - Takumi Nakahara
- Department of Applied Chemistry, Kyushu Institute of Technology, Fukuoka, 804-8550, Japan
| | - Kazuhisa Fujimoto
- Department of Applied Chemistry and Biochemistry, Kyushu Sangyo University, Fukuoka, 813-8503, Japan
| | - Satoshi Fujii
- Department of Bioscience and Bioinformatics, Kyushu Institute of Technology, Fukuoka, 820-8502, Japan
| | - Shinobu Sato
- Department of Applied Chemistry, Kyushu Institute of Technology, Fukuoka, 804-8550, Japan.,Research Center for Bio-microsensing Technology, Kyushu Institute of Technology, Fukuoka, 804-8550, Japan
| | - Shigeori Takenaka
- Department of Applied Chemistry, Kyushu Institute of Technology, Fukuoka, 804-8550, Japan.,Research Center for Bio-microsensing Technology, Kyushu Institute of Technology, Fukuoka, 804-8550, Japan
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Hodík T, Lamač M, Červenková Šťastná L, Cuřínová P, Karban J, Skoupilová H, Hrstka R, Císařová I, Gyepes R, Pinkas J. Improving cytotoxic properties of ferrocenes by incorporation of saturated N-heterocycles. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2017.06.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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