1
|
Fonseca-López D, Lozano JD, Macías MA, Muñoz-Castro Á, MacLeod-Carey D, Nagles E, Hurtado J. Biological Activity of Complexes Involving Nitro-Containing Ligands and Crystallographic-Theoretical Description of 3,5-DNB Complexes. Int J Mol Sci 2024; 25:6536. [PMID: 38928242 PMCID: PMC11203423 DOI: 10.3390/ijms25126536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2024] [Revised: 05/24/2024] [Accepted: 05/25/2024] [Indexed: 06/28/2024] Open
Abstract
Drug resistance in infectious diseases developed by bacteria and fungi is an important issue since it is necessary to further develop novel compounds with biological activity that counteract this problem. In addition, new pharmaceutical compounds with lower secondary effects to treat cancer are needed. Coordination compounds appear to be accessible and promising alternatives aiming to overcome these problems. In this review, we summarize the recent literature on coordination compounds based on nitrobenzoic acid (NBA) as a ligand, its derivatives, and other nitro-containing ligands, which are widely employed owing to their versatility. Additionally, an analysis of crystallographic data is presented, unraveling the coordination preferences and the most effective crystallization methods to grow crystals of good quality. This underscores the significance of elucidating crystalline structures and utilizing computational calculations to deepen the comprehension of the electronic properties of coordination complexes.
Collapse
Affiliation(s)
- Daniela Fonseca-López
- Grupo de Investigación en Química Inorgánica, Catálisis y Bioinorgánica, Departamento de Química, Universidad de los Andes, Bogotá 111711, Colombia;
| | - Johan D. Lozano
- Crystallography and Chemistry of Materials, Departamento de Química, Universidad de los Andes, Bogotá 111711, Colombia; (J.D.L.); (M.A.M.)
| | - Mario A. Macías
- Crystallography and Chemistry of Materials, Departamento de Química, Universidad de los Andes, Bogotá 111711, Colombia; (J.D.L.); (M.A.M.)
| | - Álvaro Muñoz-Castro
- Facultad de Ingeniería, Arquitectura y Diseño, Universidad San Sebastián, Bellavista 7, Santiago 8420524, Chile;
| | - Desmond MacLeod-Carey
- Inorganic Chemistry and Molecular Materials Laboratory, Instituto de Ciencias Aplicadas, Facultad de Ingeniería, Universidad Autónoma de Chile, El Llano Subercaseaux 2801, Santiago 8910124, Chile;
| | - Edgar Nagles
- Facultad de Química e Ing. Química, Universidad Nacional Mayor de San Marcos, Lima 15081, Peru
| | - John Hurtado
- Grupo de Investigación en Química Inorgánica, Catálisis y Bioinorgánica, Departamento de Química, Universidad de los Andes, Bogotá 111711, Colombia;
| |
Collapse
|
2
|
Fan Y, Sun H. Manipulation of Bowl-Shaped Nanoparticles Self-Assembled from a Bipyridine Pendant Containing Homopolymer. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:5828-5836. [PMID: 38456904 DOI: 10.1021/acs.langmuir.3c03712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/09/2024]
Abstract
The morphological control and transformation of soft nanomaterials are critical for their physical and chemical properties, which can be achieved by dynamically regulating the hydrophilicity of amphiphilic polymers during self-assembly. Herein, an amphiphilic homopolymer poly(N-(2,2'-bipyridine)-4-acrylamide) (PBPyAA) with bipyridine pendants is synthesized, and the effect of various parameters including initial concentration, temperature, pH, and metal ion coordination on the self-assembly behavior and morphology of the assemblies is investigated. Upon changing the initial concentration of PBPyAA, bowl-shaped nanoparticles (BNPs) with precisely controlled diameter, opening size, and thickness are obtained. With the decrease of pH of the solution, the negatively charged surface of BNPs transforms to a positively charged state. Furthermore, the addition of divalent metal ions (Co2+, Mn2+, and Zn2+) induces the transformation of BNPs to vesicles and giant vesicles. The effect of the above factors on the morphology of the assemblies is essential to change the hydrophilicity of PBPyAA dynamically, leading to variation of the local viscosity during self-assembly. Overall, manipulation of the structural parameters of BNPs and transformation of BNPs to vesicles are achieved, providing fresh insights for the precise control of the morphologies of soft nanomaterials.
Collapse
Affiliation(s)
- Yirong Fan
- State Key Laboratory of High-Efficiency Coal Utilization and Green Chemical Engineering, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan 750021, China
| | - Hui Sun
- State Key Laboratory of High-Efficiency Coal Utilization and Green Chemical Engineering, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan 750021, China
| |
Collapse
|
3
|
Bilyachenko AN, Gutsul EI, Khrustalev VN, Chusova O, Dorovatovskii PV, Aliyeva VA, Paninho AB, Nunes AVM, Mahmudov KT, Shubina ES, Pombeiro AJL. A Family of Cagelike Mn-Silsesquioxane/Bathophenanthroline Complexes: Synthesis, Structure, and Catalytic and Antifungal Activity. Inorg Chem 2023; 62:15537-15549. [PMID: 37698451 DOI: 10.1021/acs.inorgchem.3c02040] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/13/2023]
Abstract
This study reports a novel family of cage manganesesilsesquioxanes prepared via complexation with bathophenanthroline (4,7-diphenyl-1,10-phenanthroline). The resulting Mn4-, Mn6Li2-, and Mn4Na-compounds exhibit several unprecedented cage metallasilsesquioxane structural features, including intriguing self-assembly of silsesquioxane ligands. Complexes were tested in vitro for fungicidal activity against seven classes of phytopathogenic fungi. The representative Mn4Na-complex acts as a catalyst in the cycloaddition of CO2 to epoxides under solvent-free conditions to form cyclic carbonates in good yields.
Collapse
Affiliation(s)
- Alexey N Bilyachenko
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Street, 28, 119991 Moscow, Russia
- Peoples' Friendship University of Russia, Miklukho-Maklay St., 6, 117198 Moscow, Russia
| | - Evgenii I Gutsul
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Street, 28, 119991 Moscow, Russia
| | - Victor N Khrustalev
- Peoples' Friendship University of Russia, Miklukho-Maklay St., 6, 117198 Moscow, Russia
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect, 47, 119991 Moscow, Russia
| | - Olga Chusova
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Street, 28, 119991 Moscow, Russia
| | - Pavel V Dorovatovskii
- National Research Center "Kurchatov Institute", Acad. Kurchatov Sq., 1, 123182 Moscow, Russia
| | - Vusala A Aliyeva
- Centro de Química Estrutural, Institute of Molecular Sciences, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
- LAQV-REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Ana B Paninho
- LAQV-REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Ana V M Nunes
- LAQV-REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Kamran T Mahmudov
- Centro de Química Estrutural, Institute of Molecular Sciences, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
- Excellence Center, Baku State University, Z. Xalilov Str. 23, Az 1148 Baku, Azerbaijan
| | - Elena S Shubina
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Street, 28, 119991 Moscow, Russia
| | - Armando J L Pombeiro
- Peoples' Friendship University of Russia, Miklukho-Maklay St., 6, 117198 Moscow, Russia
- Centro de Química Estrutural, Institute of Molecular Sciences, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| |
Collapse
|
4
|
Mallick Ganguly O, Moulik S. Interactions of Mn complexes with DNA: the relevance of therapeutic applications towards cancer treatment. Dalton Trans 2023; 52:10639-10656. [PMID: 37475585 DOI: 10.1039/d3dt00659j] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/22/2023]
Abstract
Manganese (Mn) is one of the most significant bio-metals that helps the body to form connective tissue, bones, blood clotting factors, and sex hormones. It is necessary for fat and carbohydrate metabolism, calcium absorption, blood sugar regulation, and normal brain and nerve functions. It accelerates the synthesis of proteins, vitamin C, and vitamin B. It is also involved in the catalysis of hematopoiesis, regulation of the endocrine level, and improvement of immune function. Again, Mn metalloenzymes like arginase, glutamine synthetase, phosphoenolpyruvate decarboxylase, and Mn superoxide dismutase (MnSOD) contribute to the metabolism processes and reduce oxidative stress against free radicals. Recent investigations have revealed that synthetic Mn-complexes act as antibacterial and antifungal agents. As a result, chemists and biologists have been actively involved in developing Mn-based drugs for the treatment of various diseases including cancer. Therefore, any therapeutic drugs based on manganese complexes would be invaluable for the treatment of cancer/infectious diseases and could be a better substitute for cisplatin and other related platinum based chemotherapeutic drugs. From this perspective, attempts have been made to discuss the interactions and nuclease activities of Mn(II/III/IV) complexes with DNA through which one can evaluate their therapeutic applications.
Collapse
Affiliation(s)
- Oishi Mallick Ganguly
- St Xavier's College, 30, Park St, Mullick Bazar, Park Street area, Kolkata, West Bengal 700016, India
| | - Shuvojit Moulik
- Suraksha Diagnostics Pvt Ltd, Newtown 12/1, Premises No. 02-0327, DG Block(Newtown), Action Area 1D, Newtown, Kolkata, West Bengal 700156, India.
| |
Collapse
|
5
|
Synthesis, physicochemical, quantitative analysis and crystal structures of two mononuclear diperchlorate cobalt(II) complexes of 1,10-phenanthroline: antimicrobial, cytotoxicity and DNA/BSA interaction studies. Struct Chem 2022. [DOI: 10.1007/s11224-022-02093-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
|
6
|
Redox Data of Tris(polypyridine)manganese(II) Complexes. DATA 2022. [DOI: 10.3390/data7090130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Very little cyclic voltammetry data for tris(polypyridine)manganese(II) complexes, [MnII(N^N)3]2+, where N^N is bipyridine (bpy), phenanthroline (phen) or substituted bpy or phen ligands, respectively; are available in the literature. Cyclic voltammograms were found for tris(4,7-diphenyl-1,10-phenanthroline)manganese(II) perchlorate only. In addition to our recently published related research article, the data presented here provides cyclic voltammograms and corresponding voltage-current data obtained during electrochemical oxidation and the reduction of four [MnII(N^N)3]2+ complexes, using different scan rates and analyte concentrations. The results show increased concentration and scan rates resulting in higher Mn(II/III) peak oxidation potentials and increased peak current-voltage separations of the irreversible Mn(II/III) redox event. The average peak oxidation and peak reduction potentials of the Mn(II/III) redox events stayed constant within 0.01 V. Similarly, the average of the peak oxidation and reduction potentials of the ligand-based reduction events of [MnII(N^N)3]2+ were constant within 0.01 V.
Collapse
|
7
|
Synthesis of Cu(II)-Caffeine Complex as Potential Therapeutic Agent: Studies on Antioxidant, Anticancer and Pharmacological Activities. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
8
|
Porath AJ, Hettiarachchi MA, Li S, Bour JR. A Ni(COD) 2-free approach for the synthesis of high surface area porous aromatic frameworks. Chem Commun (Camb) 2022; 58:6841-6844. [PMID: 35616139 DOI: 10.1039/d2cc01720b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Porous aromatic frameworks (PAFs) are attractive materials for applications where high surface area and material stability govern performance. Most of the highest surface area PAFs are synthesized using poorly scalable and costly methods involving super-stoichiometric bis(1,5-cyclooctadiene)Nickel(0) (Ni(COD)2). This communication describes a general approach for the synthesis of high surface area PAFs that does not use isolated Ni(COD)2. The method is general to at least seven microporous polymers and can be conducted on gram scales without the use of an inert atmosphere glovebox. This work is expected to improve the synthetic accessibility of these materials.
Collapse
Affiliation(s)
- Anthony J Porath
- Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, MI, 48202, USA.
| | - Malsha A Hettiarachchi
- Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, MI, 48202, USA.
| | - Shuxiao Li
- Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, MI, 48202, USA.
| | - James R Bour
- Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, MI, 48202, USA.
| |
Collapse
|
9
|
Min D, Cheng L, Liu JQ, Liu DF, Li WW, Yu HQ. Ligand-Assisted Formation of Soluble Mn(III) and Bixbyite-like Mn 2O 3 by Shewanella putrefaciens CN32. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:3812-3820. [PMID: 35226466 DOI: 10.1021/acs.est.2c00342] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Functional material synthesis through biomineralization is effective and environmentally friendly. Biomineralized manganese (Mn) oxides are important for remediation and energy storage. Manganese(II) biomineralization is achieved by a diverse group of bacteria. We show that in the presence of oxygen the dissimilatory manganese-reducing bacterium Shewanella putrefaciens CN32 can oxidize Mn(II). The Mn(II) oxidation was accelerated with the increase in the initial Mn(II) concentration from 0.5 to 3 mM. The reaction was mainly associated with a cell-free filtrate, rather than the direct enzymatic oxidation or indirect oxidation by reactive oxygen species or macrocyclic siderophores. Instead, indirect oxidization of Mn(II) into soluble Mn(III) and bixbyite-like Mn2O3 via microbially produced extracellular ligands (molecular weights of 1-3 kDa) was identified. This work broadens our view about microbial Mn(II) oxidation and unveils the important roles of Shewanella species in the geochemical cycling of manganese.
Collapse
Affiliation(s)
- Di Min
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Lei Cheng
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Jia-Qi Liu
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Dong-Feng Liu
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Wen-Wei Li
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Han-Qing Yu
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| |
Collapse
|
10
|
Ahmad AA, Ulusoy Ghobadi TG, Buyuktemiz M, Ozbay E, Dede Y, Karadas F. Light-Driven Water Oxidation with Ligand-Engineered Prussian Blue Analogues. Inorg Chem 2022; 61:3931-3941. [PMID: 35200012 PMCID: PMC8905577 DOI: 10.1021/acs.inorgchem.1c03531] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
![]()
The
elucidation of the ideal coordination environment
of a catalytic site has been at the heart of catalytic
applications. Herein, we show that the water oxidation
activities of catalytic cobalt sites in a Prussian blue
(PB) structure could be tuned systematically by
decorating its coordination sphere with a combination of cyanide
and bidentate pyridyl groups. K0.1[Co(bpy)]2.9[Fe(CN)6]2 ([Cobpy–Fe]), K0.2[Co(phen)]2.8[Fe(CN)6]2 ([Cophen–Fe]), {[Co(bpy)2]3[Fe(CN)6]2}[Fe(CN)6]1/3 ([Cobpy2–Fe]), and {[Co(phen)2]3[Fe(CN)6]2}[Fe(CN)6]1/3 Cl0.11 ([Cophen2–Fe]) were prepared by introducing bidentate pyridyl groups (phen:
1,10-phenanthroline, bpy: 2,2′-bipyridine) to the common synthetic
protocol of Co–Fe Prussian blue analogues. Characterization
studies indicate that [Cobpy2–Fe] and [Cophen2–Fe] adopt a pentanuclear molecular structure, while [Cobpy–Fe] and [Cophen–Fe] could be described as cyanide-based
coordination polymers with lower-dimensionality and less crystalline
nature compared to the regular Co–Fe Prussian blue analogue
(PBA), K0.1Co2.9[Fe(CN)6]2 ([Co–Fe]). Photocatalytic studies reveal that
the activities of [Cobpy–Fe] and [Cophen–Fe] are significantly enhanced compared to those of [Co–Fe], while molecular [Cobpy2–Fe] and [Cophen2–Fe] are inactive toward water oxidation. [Cobpy–Fe] and [Cophen–Fe] exhibit upper-bound turnover
frequencies (TOFs) of 1.3 and 0.7 s–1, respectively,
which are ∼50 times higher than that of [Co–Fe] (1.8 × 10–2 s–1). The complete
inactivity of [Cobpy2–Fe] and [Cophen2–Fe] confirms the critical role of aqua coordination to the catalytic
cobalt sites for oxygen evolution reaction (OER). Computational
studies show that bidentate pyridyl groups enhance the susceptibility
of the rate-determining Co(IV)-oxo species to the nucleophilic water
attack during the critical O–O bond formation. This study opens
a new route toward increasing the intrinsic water oxidation activity
of the catalytic sites in PB coordination polymers. Bidentate pyridyl groups are coordinated
to the catalytic
cobalt sites in a cyanide-based Co−Fe structure to afford well-tuned
extended network structures, which exhibit an outstanding photocatalytic
performance compared to the regular Co−Fe PBA.
Collapse
Affiliation(s)
- Aliyu A Ahmad
- Department of Chemistry, Faculty of Science, Bilkent University, 06800 Ankara, Turkey
| | | | - Muhammed Buyuktemiz
- Department of Chemistry, Faculty of Science, Gazi University Teknikokullar, 06500 Ankara, Turkey
| | - Ekmel Ozbay
- NANOTAM─Nanotechnology Research Center, Bilkent University, 06800 Ankara, Turkey.,Department of Electrical and Electronics Engineering, Bilkent University, 06800 Ankara, Turkey.,Department of Physics, Faculty of Science, Bilkent University, 06800 Ankara, Turkey
| | - Yavuz Dede
- Department of Chemistry, Faculty of Science, Gazi University Teknikokullar, 06500 Ankara, Turkey
| | - Ferdi Karadas
- Department of Chemistry, Faculty of Science, Bilkent University, 06800 Ankara, Turkey.,UNAM─National Nanotechnology Research Center, Bilkent University, 06800 Ankara, Turkey
| |
Collapse
|
11
|
Razmara Z, Shahraki S, Eigner V, Dusek M. Sonochemical synthesis, crystal structure and catalase interaction of a new 2D coordination polymer based on isoniazid and oxalato bridges. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.131276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
12
|
Mtshali Z, von Eschwege KG, Conradie J. Electrochemical study of the Mn(II/III) oxidation of tris(polypyridine)manganese(II) complexes. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138965] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
13
|
Razmara Z, Kubicki M. Sonochemical synthesis, crystal structure, and magnetic properties of a novel organic-inorganic complex based on Mn (II), designed to produce a highly efficient and recyclable sorbent. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130143] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
|
14
|
Fiedler C, Ulbricht C, Truglas T, Wielend D, Bednorz M, Groiss H, Brüggemann O, Teasdale I, Salinas Y. Reversible Speed Regulation of Self-Propelled Janus Micromotors via Thermoresponsive Bottle-Brush Polymers. Chemistry 2021; 27:3262-3267. [PMID: 33205559 PMCID: PMC7898474 DOI: 10.1002/chem.202004792] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Indexed: 01/01/2023]
Abstract
This work reports a reversible braking system for micromotors that can be controlled by small temperature changes (≈5 °C). To achieve this, gated-mesoporous organosilica microparticles are internally loaded with metal catalysts (to form the motor) and the exterior (partially) grafted with thermosensitive bottle-brush polyphosphazenes to form Janus particles. When placed in an aqueous solution of H2 O2 (the fuel), rapid forward propulsion of the motors ensues due to decomposition of the fuel. Conformational changes of the polymers at defined temperatures regulate the bubble formation rate and thus act as brakes with considerable deceleration/acceleration observed. As the components can be easily varied, this represents a versatile, modular platform for the exogenous velocity control of micromotors.
Collapse
Affiliation(s)
- Christine Fiedler
- Institute of Polymer ChemistryJohannes Kepler University LinzAltenbergerstraße 694040LinzAustria
| | - Christoph Ulbricht
- Institute of Physical Chemistry-Linz Institute for Organic Solar CellsJohannes Kepler University LinzAltenbergerstraße 694040LinzAustria
| | - Tia Truglas
- Christian Doppler Laboratory for Nanoscale Phase TransformationsCenter of Surface and NanoanalyticsJohannes Kepler University LinzAltenbergerstraße 694040LinzAustria
| | - Dominik Wielend
- Institute of Physical Chemistry-Linz Institute for Organic Solar CellsJohannes Kepler University LinzAltenbergerstraße 694040LinzAustria
| | - Mateusz Bednorz
- Institute of Physical Chemistry-Linz Institute for Organic Solar CellsJohannes Kepler University LinzAltenbergerstraße 694040LinzAustria
| | - Heiko Groiss
- Christian Doppler Laboratory for Nanoscale Phase TransformationsCenter of Surface and NanoanalyticsJohannes Kepler University LinzAltenbergerstraße 694040LinzAustria
| | - Oliver Brüggemann
- Institute of Polymer ChemistryJohannes Kepler University LinzAltenbergerstraße 694040LinzAustria
| | - Ian Teasdale
- Institute of Polymer ChemistryJohannes Kepler University LinzAltenbergerstraße 694040LinzAustria
- Linz Institute of TechnologyJohannes Kepler University LinzAltenbergerstraße 694040LinzAustria
| | - Yolanda Salinas
- Institute of Polymer ChemistryJohannes Kepler University LinzAltenbergerstraße 694040LinzAustria
- Linz Institute of TechnologyJohannes Kepler University LinzAltenbergerstraße 694040LinzAustria
| |
Collapse
|
15
|
Madanhire T, Davids H, Pereira MC, Hosten EC, Abrahams A. Mixed-ligand complexes of lanthanides derived from an α-hydroxycarboxylic acid (benzilic acid) and 1,10-phenanthroline: Physicochemical properties and anticancer activity. Polyhedron 2020. [DOI: 10.1016/j.poly.2020.114583] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
16
|
Eni DB, Yufanyi DM, Nono JH, Tabong CD, Agwara MO. Synthesis, characterization and thermal properties of 1,10-phenanthroline mixed-ligand complexes of cobalt(II) and copper(II): metal-mediated transformations of the dicyanamide ion. CHEMICAL PAPERS 2020. [DOI: 10.1007/s11696-020-01109-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
17
|
Shukla SN, Gaur P, Vaidya P, Chaurasia B, Jhariya S. Biomimetic complexes of Mn(II), Fe(III), Co(II), and Ni(II) with 1,10-phenanthroline and a salen type ligand: tailored synthesis, characterization, DFT, enzyme kinetics, and antibacterial screening. J COORD CHEM 2018. [DOI: 10.1080/00958972.2018.1536267] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Satyendra N. Shukla
- Coordination Chemistry Research Lab, Department of Chemistry, Government Science College, Jabalpur, Madhya Pradesh, India
| | - Pratiksha Gaur
- Coordination Chemistry Research Lab, Department of Chemistry, Government Science College, Jabalpur, Madhya Pradesh, India
| | - Preeti Vaidya
- Coordination Chemistry Research Lab, Department of Chemistry, Government Science College, Jabalpur, Madhya Pradesh, India
| | - Bhaskar Chaurasia
- Coordination Chemistry Research Lab, Department of Chemistry, Government Science College, Jabalpur, Madhya Pradesh, India
| | - Sangeeta Jhariya
- Coordination Chemistry Research Lab, Department of Chemistry, Government Science College, Jabalpur, Madhya Pradesh, India
| |
Collapse
|
18
|
Su E, Guven A, Kani I. Oxygen bridged Homobinuclear Mn(II) compounds with Anthranilic acid: Theoretical calculations, oxidation and catalase activity. Appl Organomet Chem 2017. [DOI: 10.1002/aoc.4105] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Esra Su
- Department of ChemistryFaculty of Science & Letters, Istanbul Technical University Maslak, 34469 Istanbul Turkey
- Department of Chemistry, Faculty of ScienceAnadolu University 26470 Eskisehir Turkey
| | - Alaettin Guven
- Department of Chemistry, Faculty of ScienceAnadolu University 26470 Eskisehir Turkey
| | - Ibrahim Kani
- Department of Chemistry, Faculty of ScienceAnadolu University 26470 Eskisehir Turkey
| |
Collapse
|
19
|
SAHKI FERIELAOUATEF, MESSAADIA LYAMINE, MERAZIG HOCINE, CHIBANI AISSA, BOURAIOU ABDELMALEK, BOUACIDA SOFIANE. Synthesis, X-ray structure and theoretical investigation of 2-(2’-quinolyl)benzimidazole metal complexes. J CHEM SCI 2017. [DOI: 10.1007/s12039-016-1210-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|