51
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Mei L, Zhu S, Yin W, Chen C, Nie G, Gu Z, Zhao Y. Two-dimensional nanomaterials beyond graphene for antibacterial applications: current progress and future perspectives. Theranostics 2020; 10:757-781. [PMID: 31903149 PMCID: PMC6929992 DOI: 10.7150/thno.39701] [Citation(s) in RCA: 99] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Accepted: 09/21/2019] [Indexed: 12/12/2022] Open
Abstract
The marked augment of drug-resistance to traditional antibiotics underlines the crying need for novel replaceable antibacterials. Research advances have revealed the considerable sterilization potential of two-dimension graphene-based nanomaterials. Subsequently, two-dimensional nanomaterials beyond graphene (2D NBG) as novel antibacterials have also demonstrated their power for disinfection due to their unique physicochemical properties and good biocompatibility. Therefore, the exploration of antibacterial mechanisms of 2D NBG is vital to manipulate antibacterials for future applications. Herein, we summarize the recent research progress of 2D NBG-based antibacterial agents, starting with a detailed introduction of the relevant antibacterial mechanisms, including direct contact destruction, oxidative stress, photo-induced antibacterial, control drug/metallic ions releasing, and the multi-mode synergistic antibacterial. Then, the effect of the physicochemical properties of 2D NBG on their antibacterial activities is also discussed. Additionally, a summary of the different kinds of 2D NBG is given, such as transition-metal dichalcogenides/oxides, metal-based compounds, nitride-based nanomaterials, black phosphorus, transition metal carbides, and nitrides. Finally, we rationally analyze the current challenges and new perspectives for future study of more effective antibacterial agents. This review not only can help researchers grasp the current status of 2D NBG antibacterials, but also may catalyze breakthroughs in this fast-growing field.
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Affiliation(s)
- Linqiang Mei
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
- College of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shuang Zhu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Wenyan Yin
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Chunying Chen
- CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Chinese Academy of Sciences, Beijing 100190, China
| | - Guangjun Nie
- CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Chinese Academy of Sciences, Beijing 100190, China
| | - Zhanjun Gu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
- College of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yuliang Zhao
- CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Chinese Academy of Sciences, Beijing 100190, China
- College of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China
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52
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Śmiłowicz D, Kogelheide F, Stapelmann K, Awakowicz P, Metzler-Nolte N. Study on Chemical Modifications of Glutathione by Cold Atmospheric Pressure Plasma (Cap) Operated in Air in the Presence of Fe(II) and Fe(III) Complexes. Sci Rep 2019; 9:18024. [PMID: 31792236 PMCID: PMC6888970 DOI: 10.1038/s41598-019-53538-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Accepted: 10/23/2019] [Indexed: 01/21/2023] Open
Abstract
Cold atmospheric pressure plasma is an attractive new research area in clinical trials to treat skin diseases. However, the principles of plasma modification of biomolecules in aqueous solutions remain elusive. It is intriguing how reactive oxygen and nitrogen species (RONS) produced by plasma interact on a molecular level in a biological environment. Previously, we identified the chemical effects of dielectric barrier discharges (DBD) on the glutathione (GSH) and glutathione disulphide (GSSG) molecules as the most important redox pair in organisms responsible for detoxification of intracellular reactive species. However, in the human body there are also present redox-active metals such as iron, which is the most abundant transition metal in healthy humans. In the present study, the time-dependent chemical modifications on GSH and GSSG in the presence of iron(II) and iron(III) complexes caused by a dielectric barrier discharge (DBD) under ambient conditions were investigated by IR spectroscopy, mass spectrometry and High Performance Liquid Chromatography (HPLC). HPLC chromatograms revealed one clean peak after treatment of both GSH and GSSH with the dielectric barrier discharge (DBD) plasma, which corresponded to glutathione sulfonic acid GSO3H. The ESI-MS measurements confirmed the presence of glutathione sulfonic acid. In our experiments, involving either iron(II) or iron(III) complexes, glutathione sulfonic acid GSO3H appeared as the main oxidation product. This is in sharp contrast to GSH/GSSG treatment with DBD plasma in the absence of metal ions, which gave a wild mixture of products. Also interesting, no nitrosylation of GSH/GSSG was oberved in the presence of iron complexes, which seems to indicate a preferential oxygen activation chemistry by this transition metal ion.
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Affiliation(s)
- Dariusz Śmiłowicz
- Inorganic Chemistry I - Bioinorganic Chemistry, Ruhr University Bochum, 44780, Bochum, Germany
| | - Friederike Kogelheide
- Institute for Electrical Engineering and Plasma Technology, Ruhr University Bochum, 44780, Bochum, Germany
| | - Katharina Stapelmann
- Department of Nuclear Engineering, North Carolina State University, Raleigh, North Carolina, 27695, USA
| | - Peter Awakowicz
- Institute for Electrical Engineering and Plasma Technology, Ruhr University Bochum, 44780, Bochum, Germany
| | - Nils Metzler-Nolte
- Inorganic Chemistry I - Bioinorganic Chemistry, Ruhr University Bochum, 44780, Bochum, Germany.
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53
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Short tryptophan- and arginine-rich peptide shows efficacy against clinical methicillin-resistant Staphylococcus aureus strains isolated from skin and soft tissue infections. Sci Rep 2019; 9:17176. [PMID: 31748670 PMCID: PMC6868180 DOI: 10.1038/s41598-019-53926-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Accepted: 11/07/2019] [Indexed: 11/28/2022] Open
Abstract
In recent years methicillin-resistant Staphylococcus aureus has posed a challenge in treating skin and soft tissue infections. Finding new antimicrobial agents has therefore become imperative. We evaluated the in vitro antimicrobial activity of a synthetic peptide, P6, against multidrug resistant clinical strains of Staphylococcus aureus isolated from skin and soft tissue infections. The P6 antimicrobial effect was evaluated in vitro by determining MIC/MBC, the ratio of live/dead cells and the effects induced at membrane level. The therapeutic efficiency was determined against human skin cells. P6 inhibited growth for all strains between 8 and 16 mg/L and killed all bacterial strains at 16 mg/L. The therapeutic potential was found to be 30 and 15 in the presence of BSA. We showed that P6 localizes at membrane level, where it acts slowly, by depolarizing it and affecting its integrity. P6 can be considered a good candidate for use as an antimicrobial agent in topical applications.
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54
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Salmain M, Fischer-Durand N, Rudolf B. Bioorthogonal Conjugation of Transition Organometallic Complexes to Peptides and Proteins: Strategies and Applications. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900810] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Michèle Salmain
- Sorbonne Université; CNRS; Institut Parisien de Chimie Moléculaire; 4 place Jussieu 75005 Paris France
| | - Nathalie Fischer-Durand
- Sorbonne Université; CNRS; Institut Parisien de Chimie Moléculaire; 4 place Jussieu 75005 Paris France
| | - Bogna Rudolf
- Department of Organic Chemistry; Faculty of Chemistry; University of Lodz; 91-403 Lodz Poland
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55
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Neerukonda M, Pavuluri S, Sharma I, Kumar A, Sailasree P, Lakshmi JB, Sharp JA, Kumar S. Functional evaluation of a monotreme-specific antimicrobial protein, EchAMP, against experimentally induced mastitis in transgenic mice. Transgenic Res 2019; 28:573-587. [PMID: 31599375 DOI: 10.1007/s11248-019-00174-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Accepted: 09/06/2019] [Indexed: 10/25/2022]
Abstract
EchAMP, the tenth most abundant transcript expressed in the mammary gland of echidna, has in vitro broad-spectrum antibacterial effects. However, the effects of EchAMP on mastitis, a condition where inflammation is triggered following mammary gland infection, has not been investigated. To investigate the impact of EchAMP against mastitis, EchAMP transgenic mice were generated. In antibacterial assays, the whey fractions of milk from transgenic mice significantly reduced growth of Staphylococcus aureus, Bacillus subtilis, Escherichia coli and Pseudomonas aeruginosa compared with whey fractions from wildtype mice. Furthermore, a mastitis model created by infecting mammary gland with these four bacterial strains displayed a significant reduction in bacterial load in transgenic mice injected with S. aureus and B. subtilis. On further confirmation, histomorphologic analysis showed absence of necrosis and cell infiltration in the mammary glands of transgenic mice. To understand the role of EchAMP against inflammation, we employed an LPS-injected mastitis mouse model. LPS is known to induce phopshorylation of NF-κB and MAPK pathways, which in turn activate downstream proinflammatory signaling mediators, to promote inflammation. In LPS-treated EchAMP transgenic mice, phosphorylation levels of NF-κB, p38 and ERK1/2 were significantly downregulated. Furthermore, in mammary gland of transgenic mice, there was a significant downregulation of mRNA levels of proinflammatory cytokines, namely TNF-α, IL-6 and IL-1β. Taken together, these data suggest that EchAMP has an antiinflammatory response and is effective against S. aureus and B. subtilis. We suggest that EchAMP may be a potential prophylactic protein against mastitis in dairy animals by expressing this gene in their mammary gland.
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Affiliation(s)
- Manjusha Neerukonda
- Centre for Cellular and Molecular Biology, Hyderabad, India.,University Medical Centre, Johannes Gutenberg University, Mainz, Germany
| | | | - Isha Sharma
- Centre for Cellular and Molecular Biology, Hyderabad, India.,Northwestern University, Chicago, IL, USA
| | - Alok Kumar
- Centre for Cellular and Molecular Biology, Hyderabad, India
| | | | | | - Julie A Sharp
- Institute for Frontier Materials, Deakin University, Waurn Ponds, Australia
| | - Satish Kumar
- Centre for Cellular and Molecular Biology, Hyderabad, India. .,Department of Biotechnology, School of Life Sciences, Central University of Haryana, Jant-Pali, Mahendergarh, Haryana, 123031, India.
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56
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Śmiłowicz D, Slootweg JC, Metzler-Nolte N. Bioconjugation of Cyclometalated Gold(III) Lipoic Acid Fragments to Linear and Cyclic Breast Cancer Targeting Peptides. Mol Pharm 2019; 16:4572-4581. [PMID: 31596097 DOI: 10.1021/acs.molpharmaceut.9b00695] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Cell-targeting peptides (CTPs) are increasingly used in the field of cancer research due to their high affinity and specificity to cell or tissue targets. In the search for novel metal-based drug candidates, our research group is particularly focused on bioconjugates by utilizing peptides to increase the selectivity of cytotoxic organometallic compounds. Motivated by the relatively high cytotoxic activity of gold complexes, such as Auranofin (approved to treat rheumatoid arthritis), for the treatment of various diseases, we anticipated that gold peptide bioconjugates would present interesting candidates for novel breast cancer therapies. For this, we investigate the use of the natural compound lipoic acid (Lpa) as a bioconjugation handle to link Au complexes in the oxidation state +III to peptides using the dithiol moiety. Using this strategy, we have synthesized Au(III) complex bioconjugates linked to the linear LTVSPWY peptide and two cyclic DfKRG and KTTHWGFTLG tumor-targeting peptides. Solid-phase peptide synthesis (SPPS) was used to prepare the peptides, with lipoic acid introduced N-terminally as a conjugation handle. After peptide cleavage, the metal complex was introduced in solution by first reducing the internal disulfide bond, followed by reaction with Au(ppy)Cl2 (1, ppy: 2-phenyl-pyridine), to yield the Au(III)-Lpa-peptide bioconjugates. The new bioconjugates were successfully synthesized, purified by semi-preparative HPLC, and characterized by ESI-MS. Au(III)-peptide bioconjugates were tested as cytotoxic agents against two different human breast cancer cell lines (MCF-7 and MDA-MB-231) and normal human fibroblasts cells (GM5657T) and compared to cisplatin, the parent Au(III) dichloride complex, and metal-free peptides. These in vitro data show that the Au(III)-peptide bioconjugate 5, possessing the cyclic integrin-targeting RGD-derived peptide sequence in the structure, exhibits improved activity compared to the parent gold(III) compound Au(ppy)Cl2 (1) as well as to cisplatin or the metal-free peptide. Moreover, the excellent targeting properties of 5 are supported by the fact that a Au(III)-peptide conjugate with the exact same peptide sequence, but a linear rather than the cyclic form of 5 exhibits 10 times lower cytotoxic activity.
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Affiliation(s)
- Dariusz Śmiłowicz
- Inorganic Chemistry I-Bioinorganic Chemistry , Ruhr-University Bochum , Universitätsstraße 150 , Bochum 44801 , Germany
| | - Jack C Slootweg
- Inorganic Chemistry I-Bioinorganic Chemistry , Ruhr-University Bochum , Universitätsstraße 150 , Bochum 44801 , Germany
| | - Nils Metzler-Nolte
- Inorganic Chemistry I-Bioinorganic Chemistry , Ruhr-University Bochum , Universitätsstraße 150 , Bochum 44801 , Germany
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57
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58
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Du X, Wang S, Zhang R, Li Q, Li Y, Ma C. Novel organotin (IV) complexes derived from 4,4′‐oxybisbenzoic acid: synthesis, structure,
in vitro
cytostatic activity and binding interaction with BSA. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5199] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Xiumei Du
- Institution of Functional Organic Molecules and Materials, School of Chemistry and Chemical EngineeringLiaocheng University Liaocheng 252059 China
| | - Shuo Wang
- Institution of Functional Organic Molecules and Materials, School of Chemistry and Chemical EngineeringLiaocheng University Liaocheng 252059 China
| | - Rufen Zhang
- Institution of Functional Organic Molecules and Materials, School of Chemistry and Chemical EngineeringLiaocheng University Liaocheng 252059 China
| | - Qianli Li
- Institution of Functional Organic Molecules and Materials, School of Chemistry and Chemical EngineeringLiaocheng University Liaocheng 252059 China
| | - Yongxin Li
- Institution of Functional Organic Molecules and Materials, School of Chemistry and Chemical EngineeringLiaocheng University Liaocheng 252059 China
| | - Chunlin Ma
- Institution of Functional Organic Molecules and Materials, School of Chemistry and Chemical EngineeringLiaocheng University Liaocheng 252059 China
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59
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Jia Q, Song Q, Li P, Huang W. Rejuvenated Photodynamic Therapy for Bacterial Infections. Adv Healthc Mater 2019; 8:e1900608. [PMID: 31240867 DOI: 10.1002/adhm.201900608] [Citation(s) in RCA: 203] [Impact Index Per Article: 40.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 06/13/2019] [Indexed: 12/31/2022]
Abstract
The emergence of multidrug resistant bacterial strains has hastened the exploration of advanced microbicides and antibacterial techniques. Photodynamic antibacterial therapy (PDAT), an old-fashioned technique, has been rejuvenated to combat "superbugs" and biofilm-associated infections owing to its excellent characteristics of noninvasiveness and broad antibacterial spectrum. More importantly, bacteria are less likely to produce drug resistance to PDAT because it does not require specific targeting interaction between photosensitizers (PSs) and bacteria. This review mainly focuses on recent developments and future prospects of PDAT. The mechanisms of PDAT against bacteria and biofilms are briefly introduced. In addition to classical macrocyclic PSs, several innovative PSs, including non-self-quenching PSs, conjugated polymer-based PSs, and nano-PSs, are summarized in detail. Numerous multifunctional PDAT systems such as in situ light-activated PDAT, stimuli-responsive PDAT, oxygen self-enriching enhanced PDAT, and PDAT-based multimodal therapy are highlighted to overcome the inherent defects of PDAT in vivo (e.g., limited penetration depth of light and hypoxic environment of infectious sites).
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Affiliation(s)
- Qingyan Jia
- Xi'an Institute of Flexible Electronics (IFE)Xi'an Institute of Biomedical Materials and Engineering (IBME)Northwestern Polytechnical University (NPU) 127 West Youyi Road Xi'an 710072 China
| | - Qing Song
- Xi'an Institute of Flexible Electronics (IFE)Xi'an Institute of Biomedical Materials and Engineering (IBME)Northwestern Polytechnical University (NPU) 127 West Youyi Road Xi'an 710072 China
| | - Peng Li
- Xi'an Institute of Flexible Electronics (IFE)Xi'an Institute of Biomedical Materials and Engineering (IBME)Northwestern Polytechnical University (NPU) 127 West Youyi Road Xi'an 710072 China
| | - Wei Huang
- Xi'an Institute of Flexible Electronics (IFE)Xi'an Institute of Biomedical Materials and Engineering (IBME)Northwestern Polytechnical University (NPU) 127 West Youyi Road Xi'an 710072 China
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60
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Peptide Conjugates with Small Molecules Designed to Enhance Efficacy and Safety. Molecules 2019; 24:molecules24101855. [PMID: 31091786 PMCID: PMC6572008 DOI: 10.3390/molecules24101855] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2019] [Revised: 05/10/2019] [Accepted: 05/12/2019] [Indexed: 12/17/2022] Open
Abstract
Peptides constitute molecular diversity with unique molecular mechanisms of action that are proven indispensable in the management of many human diseases, but of only a mere fraction relative to more traditional small molecule-based medicines. The integration of these two therapeutic modalities offers the potential to enhance and broaden pharmacology while minimizing dose-dependent toxicology. This review summarizes numerous advances in drug design, synthesis and development that provide direction for next-generation research endeavors in this field. Medicinal studies in this area have largely focused upon the application of peptides to selectively enhance small molecule cytotoxicity to more effectively treat multiple oncologic diseases. To a lesser and steadily emerging extent peptides are being therapeutically employed to complement and diversify the pharmacology of small molecule drugs in diseases other than just cancer. No matter the disease, the purpose of the molecular integration remains constant and it is to achieve superior therapeutic outcomes with diminished adverse effects. We review linker technology and conjugation chemistries that have enabled integrated and targeted pharmacology with controlled release. Finally, we offer our perspective on opportunities and obstacles in the field.
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61
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Svendsen JSM, Grant TM, Rennison D, Brimble MA, Svenson J. Very Short and Stable Lactoferricin-Derived Antimicrobial Peptides: Design Principles and Potential Uses. Acc Chem Res 2019; 52:749-759. [PMID: 30829472 DOI: 10.1021/acs.accounts.8b00624] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The alarming rate at which micro-organisms are developing resistance to conventional antibiotics represents one of the global challenges of our time. There is currently ample space in the antibacterial drug pipeline, and scientists are trying to find innovative and novel strategies to target the microbial enemies. Nature has remained a source of inspiration for most of the antibiotics developed and used, and the immune molecules produced by the innate defense systems, as a first line of defense, have been heralded as the next source of antibiotics. Most living organisms produce an arsenal of antimicrobial peptides (AMPs) to rapidly fend off intruding pathogens, and several different attempts have been made to transform this versatile group of compounds into the next generation of antibiotics. However, faced with the many hurdles of using peptides as drugs, the success of these defense molecules as therapeutics remains to be realized. AMPs derived from the proteolytic degradation of the innate defense protein lactoferrin have been shown to display several favorable antimicrobial properties. In an attempt to investigate the biological and pharmacological properties of these much shorter AMPs, the sequence dependence was investigated, and it was shown, through a series of truncation experiments, that these AMPs in fact can be prepared as tripeptides, with improved antimicrobial activity, via the incorporation of unnatural hydrophobic residues and terminal cappings. In this Account, we describe how this class of promising cationic tripeptides has been developed to specifically address the main challenges limiting the general use of AMPs. This has been made possible through the identification of the antibacterial pharmacophore and via the incorporation of a range of unnatural hydrophobic and cationic amino acids. Incorporation of these residues at selected positions has allowed us to extensively establish how these compounds interact with the major proteolytic enzymes trypsin and chymotrypsin and also the two major drug-binding plasma proteins serum albumin and α-1 glycoprotein. Several of the challenges associated with using AMPs relate to their size, susceptibility to rapid proteolytic degradation, and poor oral bioavailability. Our studies have addressed these issues in detail, and the results have allowed us to effectively design and prepare active and metabolically stable AMPs that have been evaluated in a range of functional settings. The optimized short AMPs display inhibitory activities against a plethora of micro-organisms at low micromolar concentrations, and they have been shown to target resistant strains of both bacteria and fungi alike with a very rapid mode of action. Our Account further describes how these compounds behave in in vivo experiments and highlights both the challenges and possibilities of the intriguing compounds. In several areas, they have been shown to exhibit comparable or superior activity to established antibacterial, antifungal, and antifouling commercial products. This illustrates their ability to effectively target and eradicate various microbes in a variety of settings ranging from the ocean to the clinic.
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Affiliation(s)
| | - Thomas M. Grant
- School of Chemical Sciences, University of Auckland, Auckland 1010, New Zealand
| | - David Rennison
- School of Chemical Sciences, University of Auckland, Auckland 1010, New Zealand
| | - Margaret A. Brimble
- School of Chemical Sciences, University of Auckland, Auckland 1010, New Zealand
| | - Johan Svenson
- Department of Chemistry and Materials, RISE Research Institutes of Sweden, SE-501 15 Borås, Sweden
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62
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Cingolani A, Zanotti V, Zacchini S, Massi M, Simpson PV, Maheshkumar Desai N, Casari I, Falasca M, Rigamonti L, Mazzoni R. Synthesis, reactivity and preliminary biological activity of iron(0) complexes with cyclopentadienone and amino-appendedN-heterocyclic carbene ligands. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.4779] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Andrea Cingolani
- Dipartimento di Chimica Industriale “Toso Montanari”; Università degli Studi di Bologna; viale Risorgimento 4 40136 Bologna Italy
| | - Valerio Zanotti
- Dipartimento di Chimica Industriale “Toso Montanari”; Università degli Studi di Bologna; viale Risorgimento 4 40136 Bologna Italy
| | - Stefano Zacchini
- Dipartimento di Chimica Industriale “Toso Montanari”; Università degli Studi di Bologna; viale Risorgimento 4 40136 Bologna Italy
| | - Massimiliano Massi
- School of Molecular and Life Science - Curtin Institute for Functional Molecules and Interfaces; Curtin University; GPO Box U1987 Perth 6845 Western Australia Australia
| | - Peter V. Simpson
- School of Molecular and Life Science - Curtin Institute for Functional Molecules and Interfaces; Curtin University; GPO Box U1987 Perth 6845 Western Australia Australia
| | - Nima Maheshkumar Desai
- Metabolic Signalling Group, School of Pharmacy & Biomedical Sciences, Curtin Health Innovation Research Institute; Curtin University; Perth 6102 Western Australia Australia
| | - Ilaria Casari
- Metabolic Signalling Group, School of Pharmacy & Biomedical Sciences, Curtin Health Innovation Research Institute; Curtin University; Perth 6102 Western Australia Australia
| | - Marco Falasca
- Metabolic Signalling Group, School of Pharmacy & Biomedical Sciences, Curtin Health Innovation Research Institute; Curtin University; Perth 6102 Western Australia Australia
| | - Luca Rigamonti
- Dipartimento di Scienze Chimiche e Geologiche; Università degli Studi di Modena e Reggio Emilia; via G. Campi 103 41125 Modena Italy
| | - Rita Mazzoni
- Dipartimento di Chimica Industriale “Toso Montanari”; Università degli Studi di Bologna; viale Risorgimento 4 40136 Bologna Italy
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63
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Battistin F, Siegmund D, Balducci G, Alessio E, Metzler-Nolte N. Ru(ii)-Peptide bioconjugates with the cppH linker (cppH = 2-(2'-pyridyl)pyrimidine-4-carboxylic acid): synthesis, structural characterization, and different stereochemical features between organic and aqueous solvents. Dalton Trans 2019; 48:400-414. [PMID: 30285015 DOI: 10.1039/c8dt03575j] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Three new Ru(ii) bioconjugates with the C-terminal hexapeptide sequence of neurotensin, RRPYIL, namely trans,cis-RuCl2(CO)2(cppH-RRPYIL-κNp) (7), [Ru([9]aneS3)(cppH-RRPYIL-κNp)(PTA)](Cl)2 (8), and [Ru([9]aneS3)Cl(cppH-RRPYIL-κNp)]Cl (11), where cppH is the asymmetric linker 2-(2'-pyridyl)pyrimidine-4-carboxylic acid, were prepared in pure form and structurally characterized in solution. The cppH linker is capable of forming stereoisomers (i.e. linkage isomers), depending on whether the nitrogen atom ortho (No) or para (Np) to the carboxylate on C4 in the pyrimidine ring binds the metal ion. Thus, one of the aims of this work was to obtain pairs of stereoisomeric conjugates and investigate their biological (anticancer, antibacterial) activity. A thorough NMR characterization clearly indicated that in all cases exclusively Np conjugates were obtained in pure form. In addition, the NMR studies showed that, whereas in DMSO-d6 each conjugate exists as a single species, in D2O two (7) or even three if not four (8 and 11) very similar stable species form (each one corresponding to an individual compound). Similar results were observed for the cppH-RRPYIL ligand alone. Overall, the NMR findings are consistent with the occurrence of a strong intramolecular stacking interaction between the phenol ring of tyrosine and the pyridyl ring of cppH. Such stacking interactions between aromatic rings are expected to be stronger in water. This interaction leads to two stereoisomeric species in the free cppH-RRPYIL ligand and in the bioconjugate 7, and is somehow modulated by the less symmetrical Ru coordination environments in 8 and 11, affording three to four very similar species.
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Affiliation(s)
- Federica Battistin
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Via Giorgieri 1, 34127 Trieste, Italy.
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64
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Carmona-Negrón JA, Santana A, Rheingold AL, Meléndez E. Synthesis, structure, docking and cytotoxic studies of ferrocene–hormone conjugates for hormone-dependent breast cancer application. Dalton Trans 2019; 48:5952-5964. [DOI: 10.1039/c8dt01856a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ferrocene–estrogen conjugates can be recognized by ERα, suggesting that estrogens could serve as vectors to target specifically breast cancer cell lines.
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Affiliation(s)
| | - Alberto Santana
- University of Puerto Rico
- Department of Chemistry
- Mayagüez
- Puerto Rico
| | - Arnold L. Rheingold
- University of California–San Diego
- Department of Chemistry and Biochemistry
- La Jolla
- USA
| | - Enrique Meléndez
- University of Puerto Rico
- Department of Chemistry
- Mayagüez
- Puerto Rico
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65
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Ude Z, Kavanagh K, Twamley B, Pour M, Gathergood N, Kellett A, Marmion CJ. A new class of prophylactic metallo-antibiotic possessing potent anti-cancer and anti-microbial properties. Dalton Trans 2019; 48:8578-8593. [DOI: 10.1039/c9dt00250b] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A family of metallo-antibiotics of general formula [Cu(N,N)(CipA)Cl] where N,N is a phenanthrene ligand and CipA is a derivative of the clinically used fluoroquinolone antibiotic ciprofloxacin – targeting immunocompromised cancer patients undergoing chemotherapy.
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Affiliation(s)
- Ziga Ude
- Centre for Synthesis and Chemical Biology
- Department of Chemistry
- Royal College of Surgeons in Ireland
- Dublin 2
- Ireland
| | | | - Brendan Twamley
- School of Chemistry
- Trinity College Dublin
- University of Dublin College Green
- Dublin 2
- Ireland
| | - Milan Pour
- Department of Organic and Bioorganic Chemistry
- Faculty of Pharmacy
- Charles University
- 500 05 Hradec Kralove
- Czech Republic
| | - Nicholas Gathergood
- ERA Chair of Green Chemistry
- Division of Chemistry
- Department of Chemistry and Biotechnology
- School of Science
- Tallinn University of Technology
| | - Andrew Kellett
- School of Chemical Sciences and the National Institute for Cellular Biotechnology
- Dublin City University
- Dublin 9
- Ireland
| | - Celine J. Marmion
- Centre for Synthesis and Chemical Biology
- Department of Chemistry
- Royal College of Surgeons in Ireland
- Dublin 2
- Ireland
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66
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Liu B, Yao T, Ren L, Zhao Y, Yuan X. Antibacterial PCL electrospun membranes containing synthetic polypeptides for biomedical purposes. Colloids Surf B Biointerfaces 2018; 172:330-337. [DOI: 10.1016/j.colsurfb.2018.08.055] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Revised: 08/24/2018] [Accepted: 08/27/2018] [Indexed: 11/15/2022]
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Smiłowicz D, Metzler-Nolte N. Synthesis of monofunctional platinum(iv) carboxylate precursors for use in Pt(iv)-peptide bioconjugates. Dalton Trans 2018; 47:15465-15476. [PMID: 30334055 DOI: 10.1039/c8dt03082k] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Herein we present platinum(iv) bioconjugates with polyarginine peptides as prospective prodrug delivery systems. Asymmetrical platinum(iv) complexes 3 were obtained via oxidation of parent platinum(ii) complexes 2 with N-bromosuccinimide (NBS) in the presence of succinic anhydride. The combination of these two oxidation reagents furnishes the platinum(iv) environment with two different axial ligands, one of which bears a free carboxylic acid. All platinum(ii) and (iv) compounds were characterized by FT-IR, ESI-MS, HPLC, 1H-, 13C- and 195Pt-NMR. Standard solid-phase peptide chemistry was used for the synthesis of polyarginine (R9) peptides. Coupling of the platinum complexes with peptides N-terminally afforded peptide monoconjugates, which were purified by semi-preparative HPLC and characterized by analytical HPLC and ESI-MS. Platinum(iv)-peptide bioconjugates as well as platinum(ii) and platinum(iv) complexes were tested as cytotoxic agents against two different human cancer cell lines (MCF-7, HepG2) and normal human fibroblasts cell lines (GM5657T). Preliminary in vitro data showed that all platinum(iv) complexes exhibit lower activity than their platinum(ii) precursors towards most cell lines. Interestingly, in the case of HepG2 cells, the Pt(iv)-(R)9-G-A-L bioconjugate (4a) showed even higher activity compared to the non-targeting platinum(iv) parent compound.
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Affiliation(s)
- Dariusz Smiłowicz
- Inorganic Chemistry I - Bioinorganic Chemistry, Faculty of Chemistry and Biochemistry, Ruhr-University Bochum, Universitätsstraße 150, 44801 Bochum, Germany.
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Muñoz-Osses M, Godoy F, Fierro A, Gómez A, Metzler-Nolte N. New organometallic imines of rhenium(i) as potential ligands of GSK-3β: synthesis, characterization and biological studies. Dalton Trans 2018; 47:1233-1242. [PMID: 29299575 DOI: 10.1039/c7dt04344a] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Substituted amino-piperazine derivatives were synthesized and used as precursors for the preparation of a series of new organometallic Re(i) imine complexes with the general formula [(η5-C5H4CH[double bond, length as m-dash]N-(CH2)5-Pz-R)Re(CO)3] (Pz-R: -alkyl or aryl piperazine). The piperazine-based ligands were designed to be potential inhibitors of GSK-3β kinase. All the ligands and complexes were fully characterized and evaluated against the HT-29 and PT-45 cancer cell lines, in which GSK-3β plays a crucial role. In this context, we carried out biological evaluation using the MTT colorimetric assay. In terms of structure activity relationship, our findings indicated improved biological activity when aromaticity increased in the organic ligands (3d). In addition, the presence of the rhenium fragment in the imines (5a-d) leads to better activity with IC50 values in the range of 25-100 μM. In addition, our experimental studies were complemented by computational studies, where the volume and electrostatic surface of the organic ligands and organometallic compounds as well as their binding to the kinase protein are calculated.
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Affiliation(s)
- Michelle Muñoz-Osses
- Laboratory of Organometallic Chemistry, Faculty of Chemistry and Biology, Universidad de Santiago de Chile, Avda. Libertador Bernardo O'Higgins 3363, Estación Central, Santiago, Chile.
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70
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Review of bioactive secondary metabolites from marine bryozoans in the progress of new drugs discovery. Future Med Chem 2018; 10:1497-1514. [PMID: 29788787 DOI: 10.4155/fmc-2018-0012] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Marine bryozoans play an important role for the discovery of novel bioactive compounds among marine organisms. In this review, we summarize 164 new secondary metabolites including macrocyclic lactones, sterols, alkaloids, sphingolipids and so forth from 24 marine bryozoans in the last two decades. The structural features, bioactivity, structure-activity relationship, mechanism and strategies to address the resupply of these scarce secondary metabolites are discussed. The structural and bioactive diversity of the secondary metabolites from marine bryozoans indicated the possibility of using these compounds, especially bryostatin 1 (1), bryostatin analog (BA1), alkaloids (50, 53, 127-128 and 134-139), sphingolipids sulfates (148 and 149) and sulfur-containing aromatic compound (160), as the starting points for new drug discovery.
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Abstract
Self-assembled peptide nanostructures have been increasingly exploited as functional materials for applications in biomedicine and energy. The emergent properties of these nanomaterials determine the applications for which they can be exploited. It has recently been appreciated that nanomaterials composed of multicomponent coassembled peptides often display unique emergent properties that have the potential to dramatically expand the functional utility of peptide-based materials. This review presents recent efforts in the development of multicomponent peptide assemblies. The discussion includes multicomponent assemblies derived from short low molecular weight peptides, peptide amphiphiles, coiled coil peptides, collagen, and β-sheet peptides. The design, structure, emergent properties, and applications for these multicomponent assemblies are presented in order to illustrate the potential of these formulations as sophisticated next-generation bio-inspired materials.
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Affiliation(s)
- Danielle M Raymond
- Department of Chemistry, University of Rochester, Rochester, NY 14627-0216, USA.
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72
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Wen GH, Zhang RF, Li QL, Zhang SL, Ru J, Du JY, Ma CL. Synthesis, structure and in vitro cytostatic activity study of the novel organotin(IV) derivatives of p -aminobenzenesulfonic acid. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.02.033] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Larionov VA, Adonts HV, Gugkaeva ZT, Smol'yakov AF, Saghyan AS, Miftakhov MS, Kuznetsova SA, Maleev VI, Belokon YN. The Elaboration of a General Approach to the Asymmetric Synthesis of 1,4-Substituted 1,2,3-Triazole Containing Amino Acids via
Ni(II) Complexes. ChemistrySelect 2018. [DOI: 10.1002/slct.201800228] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Vladimir A. Larionov
- Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences; Vavilov Str. 28 119991 Moscow Russian Federation
- Department of Inorganic Chemistry; People's Friendship University of Russia (RUDN University); Miklukho-Maklaya Str. 6 117198 Moscow Russian Federation
| | - Hovhannes V. Adonts
- Institute of Pharmacy of the Yerevan State University; Alex Manoogian Str. 1 0025 Yerevan Armenia
| | - Zalina T. Gugkaeva
- Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences; Vavilov Str. 28 119991 Moscow Russian Federation
| | - Alexander F. Smol'yakov
- Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences; Vavilov Str. 28 119991 Moscow Russian Federation
- Department of Inorganic Chemistry; People's Friendship University of Russia (RUDN University); Miklukho-Maklaya Str. 6 117198 Moscow Russian Federation
| | - Ashot S. Saghyan
- Institute of Pharmacy of the Yerevan State University; Alex Manoogian Str. 1 0025 Yerevan Armenia
- SPC “Armbiotechnology” SNPO NAS RA; Gyurjyan Str. 14 0056 Yerevan Armenia
| | - Mansur S. Miftakhov
- Ufa Institute of Chemistry of Russian Academy of Sciences; Prospect Oktyabrya 71 450054 Ufa Russian Federation
| | - Svetlana A. Kuznetsova
- Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences; Vavilov Str. 28 119991 Moscow Russian Federation
| | - Victor I. Maleev
- Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences; Vavilov Str. 28 119991 Moscow Russian Federation
| | - Yuri N. Belokon
- Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences; Vavilov Str. 28 119991 Moscow Russian Federation
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Abstract
Bacterial infection continues to be a growing global health problem with the most widely accepted treatment paradigms restricted to antibiotics. However, antibiotics overuse and misuse have triggered increased multidrug resistance, frustrating the therapeutic outcomes and leading to higher mortalities. Even worse, the tendency of bacteria to form biofilms on living and nonliving surfaces further increases the difficulty in confronting bacteria because the extracellular matrix can act as a robust barrier to prevent the penetration of antibiotics and resist environmental stress. As a result, the inability to completely eliminate bacteria and biofilms often leads to persistent infection, implant failure, and device damage. Therefore, it is of paramount importance to develop alternative antimicrobial agents while avoiding the generation of bacterial resistance. Taking lessons from natural enzymes for destroying cellular structural integrity or interfering with metabolisms such as proliferation, quorum sensing, and programmed death, the construction of artificial enzymes to mimic the enzyme functions will provide unprecedented opportunities for combating bacteria. Moreover, compared to natural enzymes, artificial enzymes possess much higher stability against stringent conditions, easier tunable catalytic activity, and large-scale production for practical use. In this Account, we will focus on our recent progress in the design and synthesis of artificial enzymes as a new generation of "antibiotics", which have been demonstrated as promising applications in planktonic bacteria inactivation, wound/lung disinfection, as well as biofilm inhibition and dispersion. First, we will introduce direct utilization of the intrinsic catalytic activities of artificial enzymes without dangerous chemical auxiliaries for killing bacteria under mild conditions. Second, to avoid the toxicity caused by overdose of H2O2 in conventional disinfections, we leveraged artificial enzymes with peroxidase-mimic activities to catalyze the generation of hydroxyl radicals at low H2O2 levels while achieving efficient antibacterial outcomes. Importantly, the feasibility of these artificial enzymes was further demonstrated in vivo by mitigating mice wound and lung disinfection. Third, by combining artificial enzymes with stimuli-responsive materials, smart on-demand therapeutic modalities were constructed for thwarting bacteria in a controllable manner. For instance, a photoswitchable "Band-Aid"-like hydrogel doped with artificial enzymes was developed for efficiently killing bacteria without compromising mammal cell proliferation, which was promising for accelerating wound healing. Lastly, regarding the key roles that extracellular DNAs (eDNAs) play in maintaining biofilm integrity, we further designed a multinuclear metal complex-based DNase-mimetic artificial enzyme toward cleaving the eDNA for inhibiting biofilm formation and dispersing the established biofilms. We expect that our rational designs would boost the development of artificial enzymes with different formulations as novel antibacterial agents for clinical and industrial applications.
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Affiliation(s)
- Zhaowei Chen
- Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, P.R. China
- Graduate School, University of Chinese Academy of Sciences, Beijing 100039, P.R. China
| | - Zhenzhen Wang
- Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, P.R. China
- Graduate School, University of Chinese Academy of Sciences, Beijing 100039, P.R. China
| | - Jinsong Ren
- Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, P.R. China
| | - Xiaogang Qu
- Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, P.R. China
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Affiliation(s)
- I. W. Hamley
- Department of Chemistry, University of Reading, Whiteknights, Reading RG6 6AD, United Kingdom
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