1
|
Zhu Q, Hsu W, Wang S, Lin F, Wu Y, Fang Y, Chen J, Song L. Synthesis, antimicrobial activity and application of polymers of praseodymium complexes based on pyridine nitrogen oxide. RSC Adv 2024; 14:18519-18527. [PMID: 38860246 PMCID: PMC11164178 DOI: 10.1039/d4ra03003f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Accepted: 05/27/2024] [Indexed: 06/12/2024] Open
Abstract
The traditional pyridine nitrogen oxide-based antimicrobial agents are often associated with health risks due to heavy metal enrichment. To mitigate this concern, we synthesized two novel complexes, Pr2(mpo)6(H2O)2 and Pr(hpo)(mpo)2(H2O)2, and integrated rare-earth salts, Hhpo (2-hydroxypyridine-N-oxide) and Nampo (2-mercapto-pyridine-N-oxide sodium salt). These complexes were characterized through infrared analysis, elemental analysis, thermogravimetric analysis, and X-ray crystallographic analysis. Our comparative analyses demonstrate that the synthesized rare-earth complexes exhibit stronger antimicrobial activity against Staphylococcus aureus (S. aureus ATCC6538) and Escherichia coli (E. coli ATCC25922) compared to the ligands and rare-earth salts alone. Quantitative results revealed the lowest inhibitory concentrations of the two complexes against S. aureus ATCC6538 and E. coli ATCC25922 at 3.125 μg mL-1, 6.25 μg mL-1, 3.125 μg mL-1 and 6.25 μg mL-1, respectively. Preliminary investigations indicated that the antibacterial mechanism of these complexes involved promoting intracellular substance exudation to achieve antibacterial effects. Incorporation of these complexes into polymeric antimicrobial films resulted in a potent antimicrobial effect, achieving a 100% inhibition rate against S. aureus ATCC6538 and E. coli ATCC25922 at a low addition level of 0.6 wt%. Our results suggest that nitrogen oxide-based praseodymium complexes have potential for various antimicrobial applications.
Collapse
Affiliation(s)
- Qiuyin Zhu
- JiangXi University of Science and Technology Ganzhou Jiangxi 341000 China
- Xiamen Institute of Rare Earth Materials, Chinese Academy of Sciences Xiamen Fujian 361021 China
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences Fuzhou Fujian 350002 China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials Xiamen Fujian 361021 China
| | - Wayne Hsu
- Xiamen Institute of Rare Earth Materials, Chinese Academy of Sciences Xiamen Fujian 361021 China
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences Fuzhou Fujian 350002 China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials Xiamen Fujian 361021 China
| | - Shenglong Wang
- Xiamen Institute of Rare Earth Materials, Chinese Academy of Sciences Xiamen Fujian 361021 China
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences Fuzhou Fujian 350002 China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials Xiamen Fujian 361021 China
| | - Fenglong Lin
- Xiamen Institute of Rare Earth Materials, Chinese Academy of Sciences Xiamen Fujian 361021 China
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences Fuzhou Fujian 350002 China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials Xiamen Fujian 361021 China
| | - Yincai Wu
- Xiamen Institute of Rare Earth Materials, Chinese Academy of Sciences Xiamen Fujian 361021 China
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences Fuzhou Fujian 350002 China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials Xiamen Fujian 361021 China
| | - Yimin Fang
- Xiamen AXENT Co. Ltd Xiamen Fujian 361000 China
| | - Jinglin Chen
- JiangXi University of Science and Technology Ganzhou Jiangxi 341000 China
| | - Lijun Song
- Xiamen Institute of Rare Earth Materials, Chinese Academy of Sciences Xiamen Fujian 361021 China
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences Fuzhou Fujian 350002 China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials Xiamen Fujian 361021 China
| |
Collapse
|
2
|
Kapurwan S, Sahu PK, Raizada M, Kharel R, Konar S. [α-AsW 9O 33] 9- bridged hexagonal clusters of Ln(III) showing field induced SMM behavior: experimental and theoretical insight. Dalton Trans 2023. [PMID: 37357913 DOI: 10.1039/d3dt00406f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/27/2023]
Abstract
Polyoxometalates (POM), as inorganic polydentate oxygen donors, provide binding opportunities for oxophilic lanthanide metal centers to construct novel Ln-substituted POM materials with exciting structures and attractive properties. Herein, we have reported four arsenotungstate [α-AsW9O33]9- based lanthanide-containing polyoxometalates [CsxK36-x{Ln6(H2O)12(α-AsW9O33)6}]·yH2O (Ln = Er (1), Gd (2), Ho (3), and Tb (4)), which are synthesized in an alkaline medium. Complexes 1-3 are the dimeric structures of [Ln3(H2O)6(α-AsW9O33)3]18- polyanions, whereas complex 4 is a hexamer of the polyanion [Tb (H2O)2(α-AsW9O33)]6- as a building unit. In all the complexes, [α-AsW9O33]9- units are staggered up and down and give rise to the chair conformation, where one [α-AsW9O33]9- unit bridges two Ln(III) centers through four μ2-oxygen and two terminal oxygen atoms, resulting in the hexagonal arrangement of lanthanides. The dynamic magnetic measurement indicates that only complex 1 exhibits slow relaxation of magnetization with an applied dc field (1500 Oe). To gain insight into the slow relaxation of magnetization in complex 1, the ligand-field parameters and the splitting of the ground-state multiplet of the Er(III) ions have been estimated. The ab initio calculation results confirm that the ground state wave function of these molecules (1, 3, and 4) is mainly composed of a mixture of mJ states, and the non-axial crystal field (CF) terms are more predominant than the axial CF term. The solid-state fluorescence spectra of 1-4 reveal that the photoexcitation O → M ligand-to-metal charge-transfer (LMCT) of arsenotungstate fragments is effectively quenched due to the spatial coordination environment around the Ln(III) ion.
Collapse
Affiliation(s)
- Sandhya Kapurwan
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Bhopal By-pass Road, Bhauri, Bhopal-462066, Madhya Pradesh, India.
| | - Pradip Kumar Sahu
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Bhopal By-pass Road, Bhauri, Bhopal-462066, Madhya Pradesh, India.
| | - Mukul Raizada
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Bhopal By-pass Road, Bhauri, Bhopal-462066, Madhya Pradesh, India.
| | - Ranjan Kharel
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Bhopal By-pass Road, Bhauri, Bhopal-462066, Madhya Pradesh, India.
| | - Sanjit Konar
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Bhopal By-pass Road, Bhauri, Bhopal-462066, Madhya Pradesh, India.
| |
Collapse
|
3
|
Sun W, Xu S, Shen T, Li G, Zhang J, Pan C, Lu W, Liu X, Zheng J, Ling J, Sun J. Fe 3+@PDOPA‑ b‑PSar Nanoparticles for Magnetic Resonance Imaging and Cancer Chemotherapy. Int J Nanomedicine 2023; 18:2197-2208. [PMID: 37131547 PMCID: PMC10149081 DOI: 10.2147/ijn.s393846] [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: 10/28/2022] [Accepted: 04/11/2023] [Indexed: 05/04/2023] Open
Abstract
Purpose Chemotherapy treatments for cancer are always accompanied by a low concentration of drug delivered in the tumor area and severe side effects including systemic toxicity. Improving the concentration, biocompatibility, and biodegradability of regional chemotherapy drugs is a pressing challenge in the field of materials. Methods N-Phenyloxycarbonyl-amino acids (NPCs) which exhibit significant tolerance to nucleophiles, such as water and hydroxyl-containing compounds, are promising monomers for the synthesis of polypeptides and polypeptoids. Cell line and mouse models were used to comprehensively explore how to enhance the tumor MRI signal and evaluate the therapeutic effect of Fe@POS-DOX nanoparticles. Results In this study, poly(3,4-dihydroxy-L-phenylalanine)-b-polysarcosine (PDOPA-b-PSar, simplified as POS) was synthesized by the block copolymerization of DOPA-NPC with Sar-NPC. Fe@POS-DOX nanoparticles were prepared in order to utilize the strong chelation of catechol ligands to iron (III) cations and the hydrophobic interaction between DOX and DOPA block to deliver chemotherapeutics to tumor tissue. The Fe@POS-DOX nanoparticles exhibit high longitudinal relaxivity (r 1 = 7.06 mM-1·s-1) and act as T 1-weighted magnetic resonance (MR) imaging contrast agents. Further, the main focus was improving tumor site-specific bioavailability and achieving therapeutic effects through the biocompatibility and biodegradability of Fe@POS-DOX NPs. The Fe@POS-DOX treatment exhibited excellent antitumor effects. Conclusion Upon intravenous injection, Fe@POS-DOX delivers DOX specifically to the tumor tissues, as revealed by MR, and leads to the inhibition of tumor growth without overt toxicity to normal tissues, thus displaying considerable potential for use in clinical applications.
Collapse
Affiliation(s)
- Wei Sun
- Department of Radiology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, People’s Republic of China
- Department of Radiology, Ningbo No. 2 Hospital, Ningbo, People’s Republic of China
| | - Songyi Xu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, People’s Republic of China
| | - Tianlun Shen
- Department of Radiology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, People’s Republic of China
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, People’s Republic of China
| | - Guangyao Li
- Department of Radiology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, People’s Republic of China
| | - Jingfeng Zhang
- Department of Radiology, Ningbo No. 2 Hospital, Ningbo, People’s Republic of China
| | - Chunshu Pan
- Department of Radiology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, People’s Republic of China
- Department of Radiology, Ningbo No. 2 Hospital, Ningbo, People’s Republic of China
| | - Wei Lu
- Department of Radiology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, People’s Republic of China
- Department of Radiology, Ningbo No. 2 Hospital, Ningbo, People’s Republic of China
| | - Xiangrui Liu
- Department of Radiology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, People’s Republic of China
| | - Jianjun Zheng
- Department of Radiology, Ningbo No. 2 Hospital, Ningbo, People’s Republic of China
- Jianjun Zheng, President of Ningbo No. 2 Hospital, Ningbo, People’s Republic of China, Tel +86 574 83870280, Email
| | - Jun Ling
- Department of Radiology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, People’s Republic of China
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, People’s Republic of China
| | - Jihong Sun
- Department of Radiology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, People’s Republic of China
- Correspondence: Jihong Sun, Department of Radiology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Tel +86 13857176538, Email
| |
Collapse
|
4
|
Advanced techniques for performing photodynamic therapy in deep-seated tissues. Biomaterials 2022; 291:121875. [PMID: 36335717 DOI: 10.1016/j.biomaterials.2022.121875] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 10/07/2022] [Accepted: 10/23/2022] [Indexed: 11/23/2022]
Abstract
Photodynamic therapy (PDT) is a promising localized cancer treatment modality. It has been used successfully to treat a range of dermatological conditions with comparable efficacy to conventional treatments. However, some drawbacks limit the clinical utility of PDT in treating deep-seated tumors. Notably, the penetration limitation of UV and visible light, commonly applied to activate photosensitizers, makes PDT incompetent in treating deep-seated tumors. Development in light delivery technologies, especially fiber optics, led to improved clinical strategies for accessing deep tissues for irradiation. However, PDT efficacy issues remained partly due to light penetration limitations. In this review, we first summarized the current PDT applications for deep-seated tumor treatment. Then, the most recent progress in advanced techniques to overcome the light penetration limitation in PDT, including using functional nanomaterials that can either self-illuminate or be activated by near-infrared (NIR) light and X-rays as transducers, and implantable light delivery devices were discussed. Finally, current challenges and future opportunities of these technologies were discussed, which we hope may inspire the development of more effective techniques to enhance PDT efficacy against deep-seated tumors.
Collapse
|
5
|
Nguyen A, Kumar S, Kulkarni AA. Nanotheranostic Strategies for Cancer Immunotherapy. SMALL METHODS 2022; 6:e2200718. [PMID: 36382571 PMCID: PMC11056828 DOI: 10.1002/smtd.202200718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 09/13/2022] [Indexed: 06/16/2023]
Abstract
Despite advancements in cancer immunotherapy, heterogeneity in tumor response impose barriers to successful treatments and accurate prognosis. Effective therapy and early outcome detection are critical as toxicity profiles following immunotherapies can severely affect patients' quality of life. Existing imaging techniques, including positron emission tomography, computed tomography, magnetic resonance imaging, or multiplexed imaging, are often used in clinics yet suffer from limitations in the early assessment of immune response. Conventional strategies to validate immune response mainly rely on the Response Evaluation Criteria in Solid Tumors (RECIST) and the modified iRECIST for immuno-oncology drug trials. However, accurate monitoring of immunotherapy efficacy is challenging since the response does not always follow conventional RECIST criteria due to delayed and variable kinetics in immunotherapy responses. Engineered nanomaterials for immunotherapy applications have significantly contributed to overcoming these challenges by improving drug delivery and dynamic imaging techniques. This review summarizes challenges in recent immune-modulation approaches and traditional imaging tools, followed by emerging developments in three-in-one nanoimmunotheranostic systems co-opting nanotechnology, immunotherapy, and imaging. In addition, a comprehensive overview of imaging modalities in recent cancer immunotherapy research and a brief outlook on how nanotheranostic platforms can potentially advance to clinical translations for the field of immuno-oncology is presented.
Collapse
Affiliation(s)
- Anh Nguyen
- Department of Chemical Engineering, University of Massachusetts, Amherst, MA, USA
| | - Sahana Kumar
- Department of Chemical Engineering, University of Massachusetts, Amherst, MA, USA
| | - Ashish A. Kulkarni
- Department of Chemical Engineering, University of Massachusetts, Amherst, MA, USA
- Center for Bioactive Delivery, Institute for Applied Life Sciences, University of Massachusetts, Amherst, MA, USA
| |
Collapse
|
6
|
Zheng R, Guo J, Cai X, Bin L, Lu C, Singh A, Trivedi M, Kumar A, Liu J. Manganese complexes and manganese-based metal-organic frameworks as contrast agents in MRI and chemotherapeutics agents: Applications and prospects. Colloids Surf B Biointerfaces 2022; 213:112432. [PMID: 35259704 DOI: 10.1016/j.colsurfb.2022.112432] [Citation(s) in RCA: 40] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 02/17/2022] [Accepted: 02/27/2022] [Indexed: 12/20/2022]
Abstract
Manganese-based Metal-organic Frameworks (Mn-MOFs) represents a unique sub-class of MOFs with low toxicity, oxidative ability, and biocompatibility, which plays vital role in the application of this class of MOFs in medical field. Mn-MOFs show great potential in biomedical applications, and has been extensively studied as compared to other MOFs in transition metal series. They are important in medical applications because Mn(II) possess large electron spin number and longer electron relaxation time. They display fast water exchange rate and could be employed as a potential MRI contrast agent because of their strong targeting ability. Manganese complexes with different ligands also display prospective applications in area such as carrier for drug targeting in anti-tumor and antimicrobial therapy. In the review presented herewith, the application of Mn-based complexes and Mn-MOFs have been emphasized in the area such as imaging viz. MRI, multimodal imaging, antitumor activities such as chemodynamic therapy, photodynamic therapy, sonodynamic therapy and antimicrobial applications. Also, how rational designing and syntheses of targeted Mn-based complexes and Mn-MOFs can engender desired applications.
Collapse
Affiliation(s)
- Rouqiao Zheng
- The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, China
| | - Junru Guo
- The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, China
| | - Xinyi Cai
- The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, China
| | - Lianjie Bin
- Department of General Surgery, Dongguan People's Hospital, Wanjiang District, Dongguan 523000, China.
| | - Chengyu Lu
- The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, China
| | - Amita Singh
- Department of Chemistry, Dr. Ram Manohar Lohiya Awadh University, Ayodhya, India
| | - Manoj Trivedi
- Department of Chemistry, Sri Venkateswara College, University of Delhi, New Delhi 110021, India
| | - Abhinav Kumar
- Department of Chemistry, Faculty of Science, University of Lucknow, Lucknow 226007, India.
| | - Jianqiang Liu
- The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, China.
| |
Collapse
|
7
|
Synthesis of new nicotinic acid hydrazide metal complexes: Potential anti-cancer drug, supramolecular architecture, antibacterial studies and catalytic properties. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131860] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
8
|
Abdallah AM, Zaki NG, Mahmoud WH, El Kerdawy AM, Mohamed GG. Synthesis, structural characterization, density functional theory calculations, and antimicrobial, anticancer, and antimetastatic properties of nanosized heteroleptic complexes of cocaine/TMEDA with d‐block metal ions. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6441] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
Affiliation(s)
- Abanoub Mosaad Abdallah
- Narcotic Research Department National Center for Social and Criminological Research (NCSCR) Giza Egypt
| | - Nadia G. Zaki
- Narcotic Research Department National Center for Social and Criminological Research (NCSCR) Giza Egypt
| | - Walaa H. Mahmoud
- Chemistry Department, Faculty of Science Cairo University Giza Egypt
| | - Ahmed M. El Kerdawy
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy Cairo University Cairo Egypt
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy New Giza University Cairo Egypt
| | - Gehad G. Mohamed
- Chemistry Department, Faculty of Science Cairo University Giza Egypt
| |
Collapse
|
9
|
Huclier-Markai S, Alliot C, Mazza M, Reiller PE. Complexation of europium(III) with exopolysaccharides from a marine bacterium envisaged as luminescent probe in a theranostic approach. Dalton Trans 2021; 50:17215-17227. [PMID: 34783812 DOI: 10.1039/d1dt03288g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Exopolysaccharide (EPS) derivatives, produced by Alteromonas infernus bacterium, showed anti-metastatic properties in osteosarcoma (bone tumor). These EPSs could be employed as new drug delivery systems for therapeutic uses. They may represent a new class of ligands to be combined in a theranostic approach with fluorescent metals, such as Eu(III), to serve as imaging probe. The goal of this work was to investigate the feasibility of such coupling by time-resolved laser-induced fluorescence spectroscopy (TRLFS). Since these EPSs are polyelectrolytes their conformation could affect the complexation properties. Thus, viscosimetric measurements were performed as a function of their concentration as well as the background electrolyte concentration. Polysaccharides conformation exhibited a lower hydrodynamic volume for the highest ionic strengths. The resulting random-coiled conformation could affect the complexation with metal for high concentration but no change was evidenced when increasing europium concentration. Two sites of complexation of Eu(III) were evidenced by TRLFS in heparin, whereas only one site was evidenced in two modified EPSs produced from Alteromonas infernus.
Collapse
Affiliation(s)
- Sandrine Huclier-Markai
- GIP ARRONAX, 1 rue Aronnax, F-44817 Nantes Cedex 3, France. .,SUBATECH, 4 rue Alfred Kastler, BP 20722, 44307 Nantes Cedex 3, France
| | - Cyrille Alliot
- GIP ARRONAX, 1 rue Aronnax, F-44817 Nantes Cedex 3, France. .,INSERM U892- 8 quai Moncousu, F-44007 Nantes Cedex 1, France
| | - Mattia Mazza
- GIP ARRONAX, 1 rue Aronnax, F-44817 Nantes Cedex 3, France. .,SUBATECH, 4 rue Alfred Kastler, BP 20722, 44307 Nantes Cedex 3, France
| | - Pascal E Reiller
- Université Paris-Saclay, CEA, Service d'Etudes Analytiques et de Réactivité des Surfaces (SEARS), F-91191, Gif sur Yvette, France
| |
Collapse
|
10
|
Yousuf I, Bashir M, Arjmand F, Tabassum S. Advancement of metal compounds as therapeutic and diagnostic metallodrugs: Current frontiers and future perspectives. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.214104] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|
11
|
Stanojević IM, Glišić BĐ, Radanović DD, Djuran MI. Copper(II) complexes of aminopolycarboxylate ligands with N2O2, N2O3 and N2O4 donor sets. The relationship between the ligand structure and molecular geometry of the complex. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
12
|
Mohammadi Z, Attaran N, Sazgarnia A, Shaegh SAM, Montazerabadi A. Superparamagnetic cobalt ferrite nanoparticles as T2 contrast agent in MRI: in vitro study. IET Nanobiotechnol 2021; 14:396-404. [PMID: 32691742 DOI: 10.1049/iet-nbt.2019.0210] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Superparamagnetic cobalt ferrite nanoparticles (CoFe2O4) possess favourite advantages for theranostic applications. Most of previous studies reported that CoFe2O4 magnetic nanoparticles (MNPs) are suitable candidates for induction of hyperthermia and transfection agents for drug delivery. The present study synthesized and investigated the potential use of CoFe2O4 as a contrast agent in magnetic resonance imaging (MRI) by using a conventional MRI system. The CoFe2O4 were synthesized using co-precipitation method and characterized by TEM, XRD, FTIR, EDX and VSM techniques. Relaxivities r1 and r2 of CoFe2O4 were then calculated using a 1.5 Tesla clinical magnetic field. The cytotoxicity of CoFe2O4 was evaluated by the MTT assay. Finally, the optimal concentrations of MNPs for MRI uses were calculated through the analysis of T2 weighted imaging cell phantoms. The superparamagnetic CoFe2O4 NPs with an average stable size of 10.45 nm were synthesized. Relaxivity r1,2 calculations resulted in suitable r2 and r2/ r1 with values of 58.6 and 51 that confirmed the size dependency on relaxivity values. The optimal concentration of MNPs for MR image acquisition was calculated as 0.154 mM. Conclusion: CoFe2O4 synthesized in this study could be considered as a suitable T2 weighted contrast agent because of its high r2/r1 value.
Collapse
Affiliation(s)
- Zahra Mohammadi
- Medical Physics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Neda Attaran
- Department of Medical Nanotechnology, Applied Biophotonics Research Center, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Ameneh Sazgarnia
- Medical Physics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Alireza Montazerabadi
- Medical Physics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
| |
Collapse
|
13
|
Verma A, Hossain SKS, Sunkari SS, Reibenspies J, Saha S. Ligand influence versus electronic configuration of d-metal ion in determining the fate of NIR emission from Ln III ions: a case study with Cu II, Ni II and Zn II complexes. NEW J CHEM 2021. [DOI: 10.1039/d0nj04020g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Based on fifteen lanthanide complexes, where Cu, Ni and Zn ions with a Schiff-base ligand act as an antenna, it is demonstrated that electronic configuration of the d-block metal ion is very crucial for obtaining emission in NIR region.
Collapse
Affiliation(s)
- Abhineet Verma
- Department of Chemistry
- Institute of Science
- Banaras Hindu University
- Varanasi
- India
| | | | - Sailaja S. Sunkari
- Department of Chemistry
- Mahila Maha Vidhyalaya
- Banaras Hindu University
- Varanasi
- India
| | - Joseph Reibenspies
- X-ray Diffraction Laboratory
- Department of Chemistry
- Texas A&M University
- USA
| | - Satyen Saha
- Department of Chemistry
- Institute of Science
- Banaras Hindu University
- Varanasi
- India
| |
Collapse
|
14
|
Yan Q, Dong X, Xie R, Xu X, Wang X, Zhang K, Xia J, Ling J, Zhou F, Sun J. Preparation of Mn2+@PolyDOPA-b-polysarcosine micelle as MRI contrast agent with high longitudinal relaxivity. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2020. [DOI: 10.1080/10601325.2020.1840918] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Qingda Yan
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, China
| | - Xue Dong
- Department of Radiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Rongze Xie
- Department of Radiology, Jiulongpo People’s Hospital, Chongqing, China
| | - Xiufang Xu
- Department of Medical Imagine, Hangzhou Medical College, Hangzhou, China
| | - Xiaoyan Wang
- Department of Radiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Ke Zhang
- Department of Radiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Jingya Xia
- Department of Radiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Jun Ling
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, China
| | - Fei Zhou
- Department of Radiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Jihong Sun
- Department of Radiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Department of Radiology, Jiulongpo People’s Hospital, Chongqing, China
- Innovation Center for Minimally Invasive Techniques and Devices, Zhejiang University, Hangzhou, China
| |
Collapse
|
15
|
Photophysical, DFT and molecular docking studies of Sm(III) and Eu(III) complexes of newly synthesized coumarin ligand. INORG CHEM COMMUN 2020. [DOI: 10.1016/j.inoche.2020.108213] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
|
16
|
|
17
|
Zaki NG, Mahmoud WH, El Kerdawy AM, Abdallah AM, Mohamed GG. Structural characterization, thermal, DFT, cytotoxicity, and antimetastatic properties of cocaine complexes with La(III), Er(III), and Yb(III). RESEARCH ON CHEMICAL INTERMEDIATES 2020. [DOI: 10.1007/s11164-020-04146-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
|
18
|
Synthesis and Antibacterial Properties of Novel ZnMn 2O 4-Chitosan Nanocomposites. NANOMATERIALS 2019; 9:nano9111589. [PMID: 31717589 PMCID: PMC6915490 DOI: 10.3390/nano9111589] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 11/06/2019] [Accepted: 11/07/2019] [Indexed: 01/06/2023]
Abstract
The development of productive antibacterial agents from nontoxic materials via a simple methodology has been an immense research contribution in the medicinal chemistry field. Herein, a sol–gel one-pot reaction was used to synthesize hybrid composites of hausmannite–chitosan (Mn3O4–CS) and its innovative derivative zinc manganese oxide–chitosan (ZnMn2O4–CS). Fixed amounts of CS with different metal matrix w/v ratios of 0.5%, 1.0%, 1.5%, and 2.0% for Mn and Zn precursors were used to synthesize ZnMn2O4–CS hybrid composites. X-ray diffraction analysis indicated the formation of polycrystalline tetragonal-structured ZnMn2O4 with a CS matrix in the hybrids. Fourier-transform infrared spectroscopic analysis confirmed the formation of ZnMn2O4–CS hybrids. Detailed investigations of the surface modifications were conducted using scanning electron microscopy; micrographs at different magnifications revealed that the composites’ surface changed depending on the ratio of the source materials used to synthesize the ZnMn2O4–CS hybrids. The antibacterial activity of the Mn3O4–CS and ZnMn2O4–CS composites was tested against various bacterial species, including Bacillus subtilis, Escherichia coli, Salmonella typhi, and Pseudomonas aeruginosa. The zone of inhibition and minimum inhibitory concentration values were deduced to demonstrate the efficacy of the ZnMn2O4–CS nanocomposites as antibacterial agents.
Collapse
|
19
|
Packirisamy RG, Govindasamy C, Sanmugam A, Venkatesan S, Kim HS, Vikraman D. Synthesis of novel Sn1-xZnxO-chitosan nanocomposites: Structural, morphological and luminescence properties and investigation of antibacterial properties. Int J Biol Macromol 2019; 138:546-555. [DOI: 10.1016/j.ijbiomac.2019.07.120] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Revised: 04/19/2019] [Accepted: 07/19/2019] [Indexed: 11/26/2022]
|
20
|
Andiappan K, Sanmugam A, Deivanayagam E, Karuppasamy K, Kim HS, Vikraman D. Schiff base rare earth metal complexes: Studies on functional, optical and thermal properties and assessment of antibacterial activity. Int J Biol Macromol 2019; 124:403-410. [DOI: 10.1016/j.ijbiomac.2018.11.251] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 11/21/2018] [Accepted: 11/26/2018] [Indexed: 01/14/2023]
|
21
|
Pawlak-Jarosz N, Oczko G, Starynowicz P, Kot K. Relationship between the optical properties and the structure of a new complex: Nd(III)-isothiocyanate-2,2′-bipyridine. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.05.094] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
|
22
|
Miao Y, Xie F, Cen J, Zhou F, Tao X, Luo J, Han G, Kong X, Yang X, Sun J, Ling J. Fe 3+@polyDOPA- b-polysarcosine, a T 1-Weighted MRI Contrast Agent via Controlled NTA Polymerization. ACS Macro Lett 2018; 7:693-698. [PMID: 35632979 DOI: 10.1021/acsmacrolett.8b00287] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
α-Amino acid N-thiocarboxyanhydrides (NTAs) are promising cyclic monomers to synthesize polypeptides and polypeptoids via controlled ring-opening polymerizations. Superior to N-carboxyanhydrides requiring protection on hydroxyl groups, NTAs are able to tolerate such nucleophiles. In this work, we report the synthesis of NTA monomers containing unprotected phenolic hydroxyl groups of 3,4-dihydroxy-l-phenylalanine (DOPA) and l-tyrosine (Tyr). Their controlled ROPs and sequential copolymerizations with polysarcosine (PSar) yield PDOPA, PTyr, and PDOPA-b-polysarcosine (PDOPA-b-PSar) products quantitatively with designable degrees of polymerization. Micellar nanoparticles of Fe3+@PDOPA-b-PSar have been prepared thanks to the strong chelation of iron(III) cation by catechol ligands that act as T1-weighted magnetic resonance imaging (MRI) contrast agents. For instance, Fe3+@PDOPA10-b-PSar50 exhibits higher longitudinal relaxivity (r1 = 5.6 mM-1 s-1) than commercial Gd3+-based compounds. Effective MRI contrast enhancement in vivo of nude mice with a moderate duration (150 min) and 3D magnetic resonance angiography in rabbit illustrated by using volume rendering and maximal intensity projection techniques ignite the clinical application of Fe3+-based polypept(o)ides in diagnostic radiology as Gd-free MRI contrast agents.
Collapse
Affiliation(s)
- Yuedong Miao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Fengnan Xie
- Department of Radiology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310016, China
- Department of Medical Imagine, Hangzhou Medical College, Hangzhou 310053, China
| | - Jiayu Cen
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Fei Zhou
- Department of Radiology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310016, China
| | - Xinfeng Tao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Jingfeng Luo
- Department of Radiology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310016, China
| | - Guocan Han
- Department of Radiology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310016, China
| | - Xianglei Kong
- Department of Radiology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310016, China
| | - Xiaoming Yang
- Department of Radiology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310016, China
| | - Jihong Sun
- Department of Radiology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310016, China
- Innovation Center for Minimally Invasive Technique and Device, Zhejiang University, Hangzhou 310016, China
| | - Jun Ling
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| |
Collapse
|
23
|
de Azevedo MDBM, de Melo VHS, Soares CRJ, Miyamoto DM, Katayama RA, Squair PL, Barros CHN, Tasic L. Development and characterisation of polymeric microparticle of poly(d,l-lactic acid) loaded with holmium acetylacetonate. J Microencapsul 2018; 35:281-291. [DOI: 10.1080/02652048.2018.1477843] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Affiliation(s)
- Mariangela de Burgos M. de Azevedo
- Biotechnology Center, Nuclear and Energy Research Institute (IPEN/CNEN-SP), São Paulo, Brazil
- Biotechnology Center of Amazon, CBA, Manaus – AM, Brazil
| | - Vitor H. S. de Melo
- Biotechnology Center, Nuclear and Energy Research Institute (IPEN/CNEN-SP), São Paulo, Brazil
| | | | - Douglas M. Miyamoto
- Biotechnology Center, Nuclear and Energy Research Institute (IPEN/CNEN-SP), São Paulo, Brazil
| | - Ricardo A. Katayama
- Biotechnology Center, Nuclear and Energy Research Institute (IPEN/CNEN-SP), São Paulo, Brazil
| | - Peterson L. Squair
- Biotechnology Center, Nuclear and Energy Research Institute (IPEN/CNEN-SP), São Paulo, Brazil
| | - Caio H. N. Barros
- Department of Organic Chemistry, Institute of Chemistry, UNICAMP SP, São Paulo, Brazil
| | - Ljubica Tasic
- Department of Organic Chemistry, Institute of Chemistry, UNICAMP SP, São Paulo, Brazil
| |
Collapse
|
24
|
In vitro cytotoxicity activity of novel Schiff base ligand-lanthanide complexes. Sci Rep 2018; 8:3054. [PMID: 29445233 PMCID: PMC5812993 DOI: 10.1038/s41598-018-21366-1] [Citation(s) in RCA: 86] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Accepted: 02/02/2018] [Indexed: 12/31/2022] Open
Abstract
A Schiff base ligand (SBL), N2, N3-bis (anthracen-9-ylmethylene) pyridine-2, 3-diamine, was synthesized through the condensation of 2,6-diaminopyridine and anthracene-9-carbaldehyde using a 1:2 ratio. 1H NMR spectra confirmed the observation of non-involvement aromatic carboxylic proton in SBL. A novel series of lanthanide (i.e., praseodymium (Pr), erbium (Er), and ytterbium (Yb))-based SBL metal complexes was successfully synthesized, and their functional groups were elaborately demonstrated using UV–visible, Fourier transform infrared (FT-IR), and fluorescence spectroscopy analyses. FT-IR spectral studies revealed that SBL behaved as a bidentate ligand and it was structured with metal ions by the two azomethine nitrogens. The synthesized SBL-based metal complexes were elaborately performed for cytotoxicity activity versus Vero, human breast cancer (MCF7), and cervical (HeLa) anticancer cell lines.
Collapse
|
25
|
Xiao YD, Paudel R, Liu J, Ma C, Zhang ZS, Zhou SK. MRI contrast agents: Classification and application (Review). Int J Mol Med 2016; 38:1319-1326. [PMID: 27666161 DOI: 10.3892/ijmm.2016.2744] [Citation(s) in RCA: 236] [Impact Index Per Article: 29.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2015] [Accepted: 07/13/2016] [Indexed: 12/13/2022] Open
Abstract
Magnetic resonance imaging (MRI) contrast agents are categorised according to the following specific features: chemical composition including the presence or absence of metal atoms, route of administration, magnetic properties, effect on the magnetic resonance image, biodistribution and imaging applications. The majority of these agents are either paramagnetic ion complexes or superparamagnetic magnetite particles and contain lanthanide elements such as gadolinium (Gd3+) or transition metal manganese (Mn2+). These elements shorten the T1 or T2 relaxation time, thereby causing increased signal intensity on T1-weighted images or reduced signal intensity on T2-weighted images. Most paramagnetic contrast agents are positive agents. These agents shorten the T1, so the enhanced parts appear bright on T1-weighted images. Dysprosium, superparamagnetic agents and ferromagnetic agents are negative contrast agents. The enhanced parts appear darker on T2-weighted images. MRI contrast agents incorporating chelating agents reduces storage in the human body, enhances excretion and reduces toxicity. MRI contrast agents may be administered orally or intravenously. According to biodistribution and applications, MRI contrast agents may be categorised into three types: extracellular fluid, blood pool and target/organ-specific agents. A number of contrast agents have been developed to selectively distinguish liver pathologies. Some agents are also capable of targeting other organs, inflammation as well as specific tumors.
Collapse
Affiliation(s)
- Yu-Dong Xiao
- Department of Radiology, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, P.R. China
| | - Ramchandra Paudel
- Department of Radiology, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, P.R. China
| | - Jun Liu
- Department of Radiology, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, P.R. China
| | - Cong Ma
- Department of Radiology, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, P.R. China
| | - Zi-Shu Zhang
- Department of Radiology, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, P.R. China
| | - Shun-Ke Zhou
- Department of Radiology, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, P.R. China
| |
Collapse
|
26
|
Kinetic study of thermal decomposition of new Eu(III), Tb(III) and Gd(III) complexes with beta-diketone ligands and 4,4-diphenyl-2,2-dipyridyl, chloride of 1,10-phenantrolinium. INORG CHEM COMMUN 2015. [DOI: 10.1016/j.inoche.2015.07.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
27
|
Dunbar L, Sowden RJ, Trotter KD, Taylor MK, Smith D, Kennedy AR, Reglinski J, Spickett CM. Copper complexes as a source of redox active MRI contrast agents. Biometals 2015; 28:903-12. [PMID: 26253716 DOI: 10.1007/s10534-015-9875-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Accepted: 07/27/2015] [Indexed: 01/31/2023]
Abstract
The study reports an advance in designing copper-based redox sensing MRI contrast agents. Although the data demonstrate that copper(II) complexes are not able to compete with lanthanoids species in terms of contrast, the redox-dependent switch between diamagnetic copper(I) and paramagnetic copper(II) yields a novel redox-sensitive contrast moiety with potential for reversibility.
Collapse
Affiliation(s)
- Lynsey Dunbar
- Department of Pure & Applied Chemistry, Strathclyde University, 295 Cathedral St., Glasgow, G1 1XL, UK
| | - Rebecca J Sowden
- Strathclyde Institute of Pharmacy and Biomedical Sciences, Strathclyde University, 27 Taylor Street, Glasgow, G4 0NR, UK
| | - Katherine D Trotter
- Department of Pure & Applied Chemistry, Strathclyde University, 295 Cathedral St., Glasgow, G1 1XL, UK
| | - Michelle K Taylor
- Department of Pure & Applied Chemistry, Strathclyde University, 295 Cathedral St., Glasgow, G1 1XL, UK.,School of Science and Technology, University of New England, Armidale, NSW 2351, Australia
| | - David Smith
- Department of Pure & Applied Chemistry, Strathclyde University, 295 Cathedral St., Glasgow, G1 1XL, UK
| | - Alan R Kennedy
- Department of Pure & Applied Chemistry, Strathclyde University, 295 Cathedral St., Glasgow, G1 1XL, UK
| | - John Reglinski
- Department of Pure & Applied Chemistry, Strathclyde University, 295 Cathedral St., Glasgow, G1 1XL, UK.
| | - Corinne M Spickett
- Strathclyde Institute of Pharmacy and Biomedical Sciences, Strathclyde University, 27 Taylor Street, Glasgow, G4 0NR, UK.,School of Life and Health Sciences, Aston University, Aston Triangle, Birmingham, B4 7ET, UK
| |
Collapse
|
28
|
Gavey EL, Pilkington M. Coordination complexes of 15-membered pentadentate aza, oxoaza and thiaaza Schiff base macrocycles “Old Complexes Offer New Attractions”. Coord Chem Rev 2015. [DOI: 10.1016/j.ccr.2015.03.017] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
|
29
|
Gao S, Fu R, Hosmane NS. Nanomaterials for boron and gadolinium neutron capture therapy for cancer treatment. PURE APPL CHEM 2015. [DOI: 10.1515/pac-2014-0801] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
AbstractCancer is one of the leading causes of death; with it may different types, it kills thousands of people every day. Various types of treatment have been developed to treat and cure cancer. Nanotechnology has emerged as one of the most fruitful areas of science in cancer treatment and the nanomaterials are considered as a medical boon for the diagnosis, treatment and prevention of cancer. The major approaches of nanotechnology in tumor treatment include the development of nanoparticles with less or no tissue-resistance, their biocompatibility, ability as nanocarriers for drug delivery, and enhanced energy deposition in tissue with or without the external influence of microwave, light, magnet, etc. This review presents some of the recent developments in the use of nanoparticles as adjuncts to boron and gadolinium containing compounds in boron neutron capture therapy (BNCT) and gadolinium neutron capture therapy (GdNCT) along with the latest developments in the area of boron nanotubes (BNTs), gadolinium oxide, boron nitride nanotubes (BNNTs) and the boron agent itself.
Collapse
Affiliation(s)
| | - Rongrong Fu
- 2School of Chemistry and Materials Science, Ludong University, Yantai 264025, China
| | | |
Collapse
|
30
|
Cao F, Huang T, Wang Y, Liu F, Chen L, Ling J, Sun J. Novel lanthanide–polymer complexes for dye-free dual modal probes for MRI and fluorescence imaging. Polym Chem 2015. [DOI: 10.1039/c5py01011j] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
High-resolution imaging is a powerful technique in theranostics and staging of tumors.
Collapse
Affiliation(s)
- Fangyi Cao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Tongcun Huang
- Department of Radiology
- Sir Run Run Shaw Hospital
- School of Medicine
- Zhejiang University
- Hangzhou 310016
| | - Yifei Wang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Fei Liu
- Department of Radiology
- Sir Run Run Shaw Hospital
- School of Medicine
- Zhejiang University
- Hangzhou 310016
| | - Lumin Chen
- Department of Radiology
- Sir Run Run Shaw Hospital
- School of Medicine
- Zhejiang University
- Hangzhou 310016
| | - Jun Ling
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Jihong Sun
- Department of Radiology
- Sir Run Run Shaw Hospital
- School of Medicine
- Zhejiang University
- Hangzhou 310016
| |
Collapse
|
31
|
Zamani HA, Faridbod F, Ganjali MR. A new selectophore for gadolinium selective sensor. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 43:488-93. [PMID: 25175240 DOI: 10.1016/j.msec.2014.07.035] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2012] [Revised: 05/20/2014] [Accepted: 07/13/2014] [Indexed: 10/25/2022]
Abstract
Based on a selective complexation of N'-(2-oxo-1,2-di(pyridin-2-yl)ethylidene)furan-2-carbohydrazide (L) with Gd(III) ions, it was used as a selectophore in construction of a Gd(III) selective PVC membrane sensor. Different compositions for the membrane were tested. The o-nitrophenyloctyl ether (NPOE) was used as suitable plasticizer, and a mixture of sodium tetraphenyl borate (NaTPB) and oleic acid (OA) as anion excluders. The proposed sensor displayed a Nernstian behavior with the slope of 19.9 ± 0.6 mV decade(-1) in concentration range of 1.0 × 10(-6) to 1.0 × 10(-2)mol L(-1). Detection limit was 4.2 × 10(-7)molL(-1) and response time was ~10s. Applicable pH range of the electrode was 4.2-8.0. Lifetime of the sensor is at least 10 weeks. Analysis of certified reference materials confirmed the accuracy of the proposed electrode.
Collapse
Affiliation(s)
- Hassan Ali Zamani
- Department of Applied Chemistry, Mashhad Branch, Islamic Azad University, Mashhad, Iran.
| | - Farnoush Faridbod
- Center of Excellence in Electrochemistry, Faculty of Chemistry, University of Tehran, Tehran, Iran; Biosensor Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Reza Ganjali
- Center of Excellence in Electrochemistry, Faculty of Chemistry, University of Tehran, Tehran, Iran; Biosensor Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| |
Collapse
|
32
|
Alves LG, Souto M, Madeira F, Adão P, Munhá RF, Martins AM. Syntheses and solid state structures of cyclam-based copper and zinc compounds. J Organomet Chem 2014. [DOI: 10.1016/j.jorganchem.2013.11.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
33
|
Nibha, Baranwal B, Singh G, Daniliuc CG. Synthesis, characterization and thermolysis of lanthanide metal nitrate complexes with 1, 10-phenanthroline, Part-95. J RARE EARTH 2014. [DOI: 10.1016/s1002-0721(14)60106-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
34
|
|
35
|
Schiff base complexes of rare earth metal ions: Synthesis, characterization and catalytic activity for the oxidation of aniline and substituted anilines. J Organomet Chem 2014. [DOI: 10.1016/j.jorganchem.2013.12.014] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
36
|
Unexpected lanthanide cation selectivity of bis-β-ketovinylated diaza-18-crown-6 and open-chain diamines: cooperative effect of the second keto group. J INCL PHENOM MACRO 2013. [DOI: 10.1007/s10847-013-0345-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
37
|
Zhang X, Zuo Z, Tang J, Wang K, Wang C, Chen W, Li C, Xu W, Xiong X, Yuntai K, Huang J, Lan X, Zhou HB. Design, synthesis and biological evaluation of novel estrogen-derived steroid metal complexes. Bioorg Med Chem Lett 2013; 23:3793-7. [DOI: 10.1016/j.bmcl.2013.04.088] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2012] [Revised: 04/26/2013] [Accepted: 04/30/2013] [Indexed: 01/30/2023]
|
38
|
Drahoš B, Lukeš I, Tóth É. Manganese(II) Complexes as Potential Contrast Agents for MRI. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201101336] [Citation(s) in RCA: 135] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
39
|
Halime Z, Balieu S, Najjari B, Lachkar M, Roisnel T, Boitrel B. Functionalization of porphyrins: towards the synthesis of bifunctional chelates for bismuth coordination. J PORPHYR PHTHALOCYA 2012. [DOI: 10.1142/s1088424610002215] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
We report the condensation of 3-chloromethyl-benzoyl chloride with two atropisomers ααββ and αβαβ of meso-5,10,15,20-tetrakis-(2-amino)phenylporphyrin (TAPP), followed by the reaction of the anion of either cyano-acetic acid ethyl ester or (4-nitro-phenyl)-acetic acid ethyl ester to prepare various pre-organized strapped porphyrins. These two reagents were selected as both allow the easy formation of the anion in the α position of the ester group while their electron-withdrawing group (EWG) can be further transformed in a reactive functional group. In the ααββ series, this reaction leads to three isomeric porphyrins differing only by the location of their ethoxycarbonyl groups, oriented either towards the center of the porphyrin or maintained outside of the cavity. In the αβαβ series, as expected, a single porphyrin is obtained in which both straps bear an ethoxycarbonyl group, precursor of a hanging carboxylic function and a cyano or a 4-nitro-phenyl group, which can be reduced to an amine function, suitable for the coupling on a biomolecule.
Collapse
Affiliation(s)
- Zakaria Halime
- Université de Rennes 1, Sciences Chimiques de Rennes, UMR CNRS 6226 (ICMV), 35042 Rennes Cedex, France
- Université Sidi Mohammed Ben Abdellah, Faculté des Sciences Dhar El Mehraz, Laboratoire d'Ingénierie des Matériaux Organométalliques et Moléculaires (LIMOM), B.P. 1796 (Atlas), 30000 Fès, Morocco
| | - Sébatien Balieu
- Université de Rennes 1, Sciences Chimiques de Rennes, UMR CNRS 6226 (ICMV), 35042 Rennes Cedex, France
| | - Btissam Najjari
- Université de Rennes 1, Sciences Chimiques de Rennes, UMR CNRS 6226 (ICMV), 35042 Rennes Cedex, France
- Université Sidi Mohammed Ben Abdellah, Faculté des Sciences Dhar El Mehraz, Laboratoire d'Ingénierie des Matériaux Organométalliques et Moléculaires (LIMOM), B.P. 1796 (Atlas), 30000 Fès, Morocco
| | - Mohammed Lachkar
- Université Sidi Mohammed Ben Abdellah, Faculté des Sciences Dhar El Mehraz, Laboratoire d'Ingénierie des Matériaux Organométalliques et Moléculaires (LIMOM), B.P. 1796 (Atlas), 30000 Fès, Morocco
| | - Thierry Roisnel
- Université de Rennes 1, Sciences Chimiques de Rennes, UMR CNRS 6226, Centre de Diffractométrie X, 35042 Rennes Cedex, France
| | - Bernard Boitrel
- Université de Rennes 1, Sciences Chimiques de Rennes, UMR CNRS 6226 (ICMV), 35042 Rennes Cedex, France
| |
Collapse
|
40
|
Galezowska J, Gumienna-Kontecka E. Phosphonates, their complexes and bio-applications: A spectrum of surprising diversity. Coord Chem Rev 2012. [DOI: 10.1016/j.ccr.2011.07.002] [Citation(s) in RCA: 98] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
41
|
Grawunder A, Merten D. Rare Earth Elements in Acidic Systems – Biotic and Abiotic Impacts. SOIL BIOLOGY 2012. [DOI: 10.1007/978-3-642-23327-2_4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
|
42
|
Della Rocca J, Liu D, Lin W. Nanoscale metal-organic frameworks for biomedical imaging and drug delivery. Acc Chem Res 2011; 44:957-68. [PMID: 21648429 DOI: 10.1021/ar200028a] [Citation(s) in RCA: 1398] [Impact Index Per Article: 107.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Metal-organic frameworks (MOFs), a class of hybrid materials formed by the self-assembly of polydentate bridging ligands and metal-connecting points, have been studied for a variety of applications. Recently, these materials have been scaled down to nanometer sizes, and this Account details the development of nanoscale metal-organic frameworks (NMOFs) for biomedical applications. NMOFs possess several potential advantages over conventional nanomedicines such as their structural and chemical diversity, their high loading capacity, and their intrinsic biodegradability. Under relatively mild conditions, NMOFs can be obtained as either crystalline or amorphous materials. The particle composition, size, and morphology can be easily tuned to optimize the final particle properties. Researchers have employed two general strategies to deliver active agents using NMOFs: by incorporating active agents into the frameworks or by loading active agents into the pores and channels of the NMOFs. The modification of NMOF surfaces with either silica coatings or organic polymers improves NMOF stability, fine-tunes their properties, and imparts additional functionality. Preliminary biomedical applications of NMOFs have focused on their use as delivery vehicles for imaging contrast agents and molecular therapeutics. Because NMOFs can carry large amounts of paramagnetic metal ions, they have been extensively explored as magnetic resonance imaging (MRI) contrast agents. Both Gd(3+)- and Mn(2+)-containing NMOFs have shown excellent efficacy as T(1)-weighted contrast agents with large per metal- and per particle-based MR relaxivities. Fe(3+)-containing NMOFs have demonstrated excellent T(2)-weighted contrast enhancement. Upon intravenous injection of iron carboxylate NMOFs in Wistar rats, researchers observed negative signal enhancement in the liver and spleen, which dissipated over time, indicating the degradation and clearance of the NMOF. Through the incorporation of luminescent or high Z element building blocks, NMOFs have also served as viable contrast agents for optical imaging or X-ray computed tomography (CT) imaging. Incorporation of membrane impermeable dyes into NMOFs allowed for their uptake by cancer cells and for their controlled release as the framework decomposed. NMOFs have been used to deliver anticancer drugs and other chemotherapeutics. Cisplatin prodrugs were incorporated within NMOFs at exceptionally high levels, either through use of the prodrug as the building block or through attachment of the prodrug onto the framework after synthesis. These NMOFs were encapsulated within a silica shell and targeted to cancer cells. In vitro assays revealed that the targeted NMOFs possessed similar efficacy to cisplatin, while the nontargeted NMOFs were less active. Several different therapeutic molecules were loaded within porous iron-carboxylate NMOFs at unprecedented levels. The NMOF showed sustained drug release with no burst effect, and in vitro assays revealed that the nanoencapsulated drug possessed similar efficacy to the free drug. Although still at a very early stage of development, NMOFs have already shown great promise as a novel platform for nanomedicine. The compositional tunability and mild synthetic conditions used to produce NMOFs should allow for the incorporation of other imaging and therapeutic agents and their effective delivery to targeted cells in vivo.
Collapse
Affiliation(s)
- Joseph Della Rocca
- Department of Chemistry, CB#3290, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Demin Liu
- Department of Chemistry, CB#3290, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Wenbin Lin
- Department of Chemistry, CB#3290, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| |
Collapse
|
43
|
Shen L, Yang J, Ma YS, Tang XY, Yang GW, Li QY, Zhou F, Miao ZF, Fei XW, Huang JW. Two yttrium(III) coordination compounds containing a3-ptz or atza [a3-ptz = 5-[N-acetato(3-pyridyl)]tetrazole; atza = 5-aminotetrazole-1-acetato]. J COORD CHEM 2011. [DOI: 10.1080/00958972.2010.550283] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Lei Shen
- a Department of Chemistry and Materials Engineering , Jiangsu Laboratory of Advanced Functional Materials, Changshu Institute of Technology , Changshu 215500, P.R. China
| | - Jie Yang
- a Department of Chemistry and Materials Engineering , Jiangsu Laboratory of Advanced Functional Materials, Changshu Institute of Technology , Changshu 215500, P.R. China
| | - Yun-Sheng Ma
- a Department of Chemistry and Materials Engineering , Jiangsu Laboratory of Advanced Functional Materials, Changshu Institute of Technology , Changshu 215500, P.R. China
| | - Xiao-Yan Tang
- a Department of Chemistry and Materials Engineering , Jiangsu Laboratory of Advanced Functional Materials, Changshu Institute of Technology , Changshu 215500, P.R. China
| | - Gao-Wen Yang
- a Department of Chemistry and Materials Engineering , Jiangsu Laboratory of Advanced Functional Materials, Changshu Institute of Technology , Changshu 215500, P.R. China
| | - Qiao-Yun Li
- a Department of Chemistry and Materials Engineering , Jiangsu Laboratory of Advanced Functional Materials, Changshu Institute of Technology , Changshu 215500, P.R. China
| | - Feng Zhou
- a Department of Chemistry and Materials Engineering , Jiangsu Laboratory of Advanced Functional Materials, Changshu Institute of Technology , Changshu 215500, P.R. China
| | - Zhu-Feng Miao
- a Department of Chemistry and Materials Engineering , Jiangsu Laboratory of Advanced Functional Materials, Changshu Institute of Technology , Changshu 215500, P.R. China
| | - Xiang-Wen Fei
- a Department of Chemistry and Materials Engineering , Jiangsu Laboratory of Advanced Functional Materials, Changshu Institute of Technology , Changshu 215500, P.R. China
| | - Jun-Wei Huang
- a Department of Chemistry and Materials Engineering , Jiangsu Laboratory of Advanced Functional Materials, Changshu Institute of Technology , Changshu 215500, P.R. China
| |
Collapse
|
44
|
Josan JS, De Silva CR, Yoo B, Lynch RM, Pagel MD, Vagner J, Hruby VJ. Fluorescent and lanthanide labeling for ligand screens, assays, and imaging. Methods Mol Biol 2011; 716:89-126. [PMID: 21318902 PMCID: PMC3365840 DOI: 10.1007/978-1-61779-012-6_6] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/23/2023]
Abstract
The use of fluorescent (or luminescent) and metal contrast agents in high-throughput screens, in vitro assays, and molecular imaging procedures has rapidly expanded in recent years. Here we describe the development and utility of high-affinity ligands for cancer theranostics and other in vitro screening -studies. In this context, we also illustrate the syntheses and use of heteromultivalent ligands as targeted imaging agents.
Collapse
|
45
|
Paryzek Z, Piasecka M, Joachimiak R, Luks E, Radecka-Paryzek W. New steroid dimer derived from cholic acid as receptor for lanthanum(III) and calcium(II) nitrates. J RARE EARTH 2010. [DOI: 10.1016/s1002-0721(10)60385-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
46
|
Rodrigues DA, da Costa NB, Freire RO. Would the Pseudocoordination Centre Method Be Appropriate To Describe the Geometries of Lanthanide Complexes? J Chem Inf Model 2010; 51:45-51. [DOI: 10.1021/ci100205c] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Danilo A. Rodrigues
- Departamento de Química, Universidade Federal de Sergipe, 49.100-000, São Cristóvão, SE, Brazil
| | - Nivan B. da Costa
- Departamento de Química, Universidade Federal de Sergipe, 49.100-000, São Cristóvão, SE, Brazil
| | - Ricardo O. Freire
- Departamento de Química, Universidade Federal de Sergipe, 49.100-000, São Cristóvão, SE, Brazil
| |
Collapse
|
47
|
|
48
|
Della Rocca J, Lin W. Nanoscale Metal–Organic Frameworks: Magnetic Resonance Imaging Contrast Agents and Beyond. Eur J Inorg Chem 2010. [DOI: 10.1002/ejic.201000496] [Citation(s) in RCA: 172] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Joseph Della Rocca
- Department of Chemistry, University of North Carolina at Chapel Hill, Caudill and Kenan Laboratories, CB#3290, Chapel Hill, North Carolina 27599, USA, Fax: +1‐919‐962‐2388
| | - Wenbin Lin
- Department of Chemistry, University of North Carolina at Chapel Hill, Caudill and Kenan Laboratories, CB#3290, Chapel Hill, North Carolina 27599, USA, Fax: +1‐919‐962‐2388
| |
Collapse
|
49
|
Yamada Y, Takenouchi SI, Miyoshi Y, Okamoto KI. Syntheses, crystal structures, and some properties of heavier lanthanide(III) complexes with optically active N,N ′-bis(2-hydroxybenzyl)-N,N ′-bis(2-pyridylmethyl)-R-1,2-propanediamine. J COORD CHEM 2010. [DOI: 10.1080/00958971003682600] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Yasunori Yamada
- a Faculty of Science and Engineering, Department of Chemistry and Applied Chemistry , Saga University , 1 Honjo-machi, Saga, Saga 840-8502, Japan
| | - Shin-Ichi Takenouchi
- a Faculty of Science and Engineering, Department of Chemistry and Applied Chemistry , Saga University , 1 Honjo-machi, Saga, Saga 840-8502, Japan
| | - Yusuke Miyoshi
- a Faculty of Science and Engineering, Department of Chemistry and Applied Chemistry , Saga University , 1 Honjo-machi, Saga, Saga 840-8502, Japan
| | - Ken-Ichi Okamoto
- b Department of Chemistry , Graduate School of Pure and Applied Science, University of Tsukuba , 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8571, Japan
| |
Collapse
|
50
|
Hatzipanayioti D, Petropouleas P. Theoretical and experimental investigation of the semiquinone forms of protocatechuic acid. The effect of manganese. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2010; 75:997-1007. [PMID: 20080058 DOI: 10.1016/j.saa.2009.12.025] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2009] [Revised: 11/30/2009] [Accepted: 12/07/2009] [Indexed: 05/28/2023]
Abstract
Ten oxidized, oxygenated and dimeric forms of protocatechuic acid (PCA, 3,4-dihydroxybenzoic acid, 3,4-DHBA) have been studied using DFT calculations (at the B3LYP/TZVP level of theory) and their structural and spectroscopic parameters (electronic transitions, NMR resonances) have been calculated. Combination with experimental results (under anaerobic or aerobic environment) determines the conditions for the existence of protonated, fully deprotonate and/or oxygenated semiquinones of PCA. Several energy optimized conformers containing manganese-(PCA-semiquinones) and water or/and peroxo-groups have been drawn (species 11-16) and their structural and spectroscopic properties have been calculated at the same level of theory. Experimental parallel to the theoretical results provide evidence for the existence of Mn(II)- and Mn(III)-[PCA-semiquinone] as well the conditions of dioxygen activation. Two of the blue solids (17 and 18) isolated from these solutions, have been characterized. Elemental analyzes, TGA, IR and ESR spectra support the formulation Mn(2)(PCA)(2)(O(2))(OH)(2)(AcO)(ClO(4))(2)(H(2)O)(3) (17), and Mn(2)(PCA)(2)(O(2))(2)(OH)(2)(AcO)H(2)O (18). Their ESR spectra, in solution (blue solutions), are almost identical and indicative of Mn(IV) existence. From the whole investigation, the activation of dioxygen by the PCA, its relocation on manganese and the oxidation of the metal ion have been provided.
Collapse
|