1
|
Mao B, Hodges B, Franklin C, Calatayud DG, Pascu SI. Self-Assembled Materials Incorporating Functional Porphyrins and Carbon Nanoplatforms as Building Blocks for Photovoltaic Energy Applications. Front Chem 2021; 9:727574. [PMID: 34660529 PMCID: PMC8517519 DOI: 10.3389/fchem.2021.727574] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Accepted: 08/13/2021] [Indexed: 11/13/2022] Open
Abstract
As a primary goal, this review highlights the role of supramolecular interactions in the assembly of new sustainable materials incorporating functional porphyrins and carbon nanoplatforms as building blocks for photovoltaics advancements.
Collapse
Affiliation(s)
- Boyang Mao
- Department of Chemistry, University of Bath, Bath, United Kingdom.,Cambridge Graphene Centre, Engineering Department, University of Cambridge, Cambridge, United Kingdom
| | - Benjamin Hodges
- Department of Chemistry, University of Bath, Bath, United Kingdom.,Centre for Sustainable and Circular Technologies (CSCT), University of Bath, Bath, United Kingdom
| | - Craig Franklin
- Department of Chemistry, University of Bath, Bath, United Kingdom
| | - David G Calatayud
- Department of Chemistry, University of Bath, Bath, United Kingdom.,Department of Electroceramics, Instituto de Ceramica y Vidrio (CSIC), Madrid, Spain
| | - Sofia I Pascu
- Department of Chemistry, University of Bath, Bath, United Kingdom.,Centre for Sustainable and Circular Technologies (CSCT), University of Bath, Bath, United Kingdom
| |
Collapse
|
2
|
Kuganathan N, Chroneos A. Technetium Encapsulation by A Nanoporous Complex Oxide 12CaO•7Al 2O 3 (C12A7). NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E816. [PMID: 31151247 PMCID: PMC6631208 DOI: 10.3390/nano9060816] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 05/27/2019] [Accepted: 05/29/2019] [Indexed: 01/02/2023]
Abstract
Technetium (99Tc) is an important long-lived radionuclide released from various activities including nuclear waste processing, nuclear accidents and atmospheric nuclear weapon testing. The removal of 99Tc from the environment is a challenging task, and chemical capture by stable ceramic host systems is an efficient strategy to minimise the hazard. Here we use density functional theory with dispersion correction (DFT+D) to examine the capability of the porous inorganic framework material C12A7 that can be used as a filter material in different places such as industries and nuclear power stations to encapsulate Tc in the form of atoms and dimers. The present study shows that both the stoichiometric and electride forms of C12A7 strongly encapsulate a single Tc atom. The electride form exhibits a significant enhancement in the encapsulation. Although the second Tc encapsulation is also energetically favourable in both forms, the two Tc atoms prefer to aggregate, forming a dimer.
Collapse
Affiliation(s)
- Navaratnarajah Kuganathan
- Department of Materials, Imperial College London, London SW7 2AZ, UK.
- Faculty of Engineering, Environment and Computing, Coventry University, Priory Street, Coventry CV1 5FB, UK.
| | - Alexander Chroneos
- Department of Materials, Imperial College London, London SW7 2AZ, UK.
- Faculty of Engineering, Environment and Computing, Coventry University, Priory Street, Coventry CV1 5FB, UK.
| |
Collapse
|
4
|
Ge H, Riss PJ, Mirabello V, Calatayud DG, Flower SE, Arrowsmith RL, Fryer TD, Hong Y, Sawiak S, Jacobs RM, Botchway SW, Tyrrell RM, James TD, Fossey JS, Dilworth JR, Aigbirhio FI, Pascu SI. Behavior of Supramolecular Assemblies of Radiometal-Filled and Fluorescent Carbon Nanocapsules In Vitro and In Vivo. Chem 2017. [DOI: 10.1016/j.chempr.2017.06.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
|
5
|
Mao B, Calatayud DG, Mirabello V, Kuganathan N, Ge H, Jacobs RMJ, Shepherd AM, Ribeiro Martins JA, Bernardino De La Serna J, Hodges BJ, Botchway SW, Pascu SI. Fluorescence-Lifetime Imaging and Super-Resolution Microscopies Shed Light on the Directed- and Self-Assembly of Functional Porphyrins onto Carbon Nanotubes and Flat Surfaces. Chemistry 2017; 23:9772-9789. [PMID: 28444700 PMCID: PMC5724654 DOI: 10.1002/chem.201605232] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Indexed: 11/10/2022]
Abstract
Functional porphyrins have attracted intense attention due to their remarkably high extinction coefficients in the visible region and potential for optical and energy‐related applications. Two new routes to functionalised SWNTs have been established using a bulky ZnII‐porphyrin featuring thiolate groups at the periphery. We probed the optical properties of this zinc(II)‐substituted, bulky aryl porphyrin and those of the corresponding new nano‐composites with single walled carbon nanotube (SWNTs) and coronene, as a model for graphene. We report hereby on: i) the supramolecular interactions between the pristine SWNTs and ZnII‐porphyrin by virtue of π–π stacking, and ii) a novel covalent binding strategy based on the Bingel reaction. The functional porphyrins used acted as dispersing agent for the SWNTs and the resulting nanohybrids showed improved dispersibility in common organic solvents. The synthesized hybrid materials were probed by various characterisation techniques, leading to the prediction that supramolecular polymerisation and host–guest functionalities control the fluorescence emission intensity and fluorescence lifetime properties. For the first time, XPS studies highlighted the differences in covalent versus non‐covalent attachments of functional metalloporphyrins to SWNTs. Gas‐phase DFT calculations indicated that the ZnII‐porphyrin interacts non‐covalently with SWNTs to form a donor–acceptor complex. The covalent attachment of the porphyrin chromophore to the surface of SWNTs affects the absorption and emission properties of the hybrid system to a greater extent than in the case of the supramolecular functionalisation of the SWNTs. This represents a synthetic challenge as well as an opportunity in the design of functional nanohybrids for future sensing and optoelectronic applications.
Collapse
Affiliation(s)
- Boyang Mao
- Department of Chemistry, University of Bath, Claverton Down, BA2 7AY, Bath, UK.,National Graphene Institute and School of Physics and Astronomy, The University of Manchester, Booth Street East, Manchester, M13 9PL, UK
| | - David G Calatayud
- Department of Chemistry, University of Bath, Claverton Down, BA2 7AY, Bath, UK.,Department of Electroceramics, Instituto de Ceramica y Vidrio - CSIC, Madrid, 28049, Spain
| | - Vincenzo Mirabello
- Department of Chemistry, University of Bath, Claverton Down, BA2 7AY, Bath, UK
| | | | - Haobo Ge
- Department of Chemistry, University of Bath, Claverton Down, BA2 7AY, Bath, UK
| | - Robert M J Jacobs
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford, OX1 3TA, UK
| | - Ashley M Shepherd
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford, OX1 3TA, UK
| | - José A Ribeiro Martins
- Centro de Engenharia Biológica and Departamento de Química, Universidade do Minho, Campus de Gualtar, 4710-057, Braga, Portugal
| | | | - Benjamin J Hodges
- Department of Chemistry, University of Bath, Claverton Down, BA2 7AY, Bath, UK
| | - Stanley W Botchway
- Central Laser Facility, Rutherford Appleton Laboratory, Research Complex at Harwell, STFC Didcot, OX11 0QX, UK
| | - Sofia I Pascu
- Department of Chemistry, University of Bath, Claverton Down, BA2 7AY, Bath, UK
| |
Collapse
|
9
|
Tong LH, Pengo P, Clegg W, Lowe JP, Raithby PR, Sanders JKM, Pascu SI. Complexes of aryl-substituted porphyrins and naphthalenediimide (NDI): investigations by synchrotron X-ray diffraction and NMR spectroscopy. Dalton Trans 2011; 40:10833-42. [DOI: 10.1039/c1dt10880h] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
10
|
Pascu SI, Arrowsmith RL, Bayly SR, Brayshaw S, Hu Z. Towards nanomedicines: design protocols to assemble, visualize and test carbon nanotube probes for multi-modality biomedical imaging. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2010; 368:3683-3712. [PMID: 20603377 DOI: 10.1098/rsta.2010.0081] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Nanomedicine is an interdisciplinary field, still in its infancy, where an accurate scientific assessment of potential risks and benefits is urgently needed, as is the engagement of end users and the public in this facet of the nanotechnology debate. There is increasing interest in improving our understanding of the interactions between nanomaterials and living systems, with regard to both the underlying chemistry and the physics of effects on the nanoscale. Ultimately, such knowledge promises new vistas for designing the 'smart' medicines of the future, of which targeted personalized drugs are the holy grail. Imaging and therapeutic components, including metallic radioisotopes, semiconductor quantum dots and magnetic materials, may be used to construct 'nanocarriers' (by encapsulation or conjugation) by rapid and simple (covalent and supramolecular) chemistry. The biomedical functions of the resulting materials are as yet largely unexplored. Encapsulation in nanocarriers could achieve delivery of the reagents (imaging and therapeutic drugs) to the sites of action in the body, while minimizing systemic toxicity and enzymatic degradation. These functional systems have the potential to become a general solution in drug delivery. Here we review recent developments concerning the applications of nanoparticles, including carbon nanotubes, as synthetic scaffolds for designing nanomedicines. This article will also focus on how understanding and design at the molecular level could help interdisciplinary teams develop research towards new diagnostics and therapeutics both in the short and the long term.
Collapse
Affiliation(s)
- Sofia I Pascu
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, UK.
| | | | | | | | | |
Collapse
|