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Atzori M, Benci S, Morra E, Tesi L, Chiesa M, Torre R, Sorace L, Sessoli R. Structural Effects on the Spin Dynamics of Potential Molecular Qubits. Inorg Chem 2017; 57:731-740. [DOI: 10.1021/acs.inorgchem.7b02616] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Matteo Atzori
- Dipartimento di Chimica “Ugo Schiff” & INSTM RU, Università degli Studi di Firenze, Via della Lastruccia 3, I50019 Sesto Fiorentino (Firenze), Italy
| | - Stefano Benci
- European
Lab. for Non-Linear Spectroscopy, Università degli Studi di Firenze, I50019 Sesto Fiorentino (Firenze), Italy
| | - Elena Morra
- Dipartimento
di Chimica e NIS Centre, Università di Torino, Via P. Giuria
7, I10125 Torino, Italy
| | - Lorenzo Tesi
- Dipartimento di Chimica “Ugo Schiff” & INSTM RU, Università degli Studi di Firenze, Via della Lastruccia 3, I50019 Sesto Fiorentino (Firenze), Italy
| | - Mario Chiesa
- Dipartimento
di Chimica e NIS Centre, Università di Torino, Via P. Giuria
7, I10125 Torino, Italy
| | - Renato Torre
- European
Lab. for Non-Linear Spectroscopy, Università degli Studi di Firenze, I50019 Sesto Fiorentino (Firenze), Italy
- Dipartimento
di Fisica ed Astronomia, Università degli Studi di Firenze, I50019 Sesto Fiorentino (Firenze), Italy
| | - Lorenzo Sorace
- Dipartimento di Chimica “Ugo Schiff” & INSTM RU, Università degli Studi di Firenze, Via della Lastruccia 3, I50019 Sesto Fiorentino (Firenze), Italy
| | - Roberta Sessoli
- Dipartimento di Chimica “Ugo Schiff” & INSTM RU, Università degli Studi di Firenze, Via della Lastruccia 3, I50019 Sesto Fiorentino (Firenze), Italy
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Purdey MS, Capon PK, Pullen BJ, Reineck P, Schwarz N, Psaltis PJ, Nicholls SJ, Gibson BC, Abell AD. An organic fluorophore-nanodiamond hybrid sensor for photostable imaging and orthogonal, on-demand biosensing. Sci Rep 2017; 7:15967. [PMID: 29162856 PMCID: PMC5698319 DOI: 10.1038/s41598-017-15772-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Accepted: 11/02/2017] [Indexed: 11/21/2022] Open
Abstract
Organic fluorescent probes are widely used to detect key biomolecules; however, they often lack the photostability required for extended intracellular imaging. Here we report a new hybrid nanomaterial (peroxynanosensor, PNS), consisting of an organic fluorescent probe bound to a nanodiamond, that overcomes this limitation to allow concurrent and extended cell-based imaging of the nanodiamond and ratiometric detection of hydrogen peroxide. Far-red fluorescence of the nanodiamond offers continuous monitoring without photobleaching, while the green fluorescence of the organic fluorescent probe attached to the nanodiamond surface detects hydrogen peroxide on demand. PNS detects basal production of hydrogen peroxide within M1 polarised macrophages and does not affect macrophage growth during prolonged co-incubation. This nanosensor can be used for extended bio-imaging not previously possible with an organic fluorescent probe, and is spectrally compatible with both Hoechst 33342 and MitoTracker Orange stains for hyperspectral imaging.
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Affiliation(s)
- Malcolm S Purdey
- ARC Centre of Excellence for Nanoscale BioPhotonics (CNBP), Adelaide, Australia.
- Institute for Photonics and Advanced Sensing (IPAS), The University of Adelaide, North Terrace, Adelaide, SA 5005, Australia.
- Department of Chemistry, School of Physical Sciences, The University of Adelaide, North Terrace, Adelaide, SA 5005, Australia.
- South Australian Health and Medical Research Institute (SAHMRI) and School of Medicine, The University of Adelaide, North Terrace, Adelaide, SA 5001, Australia.
| | - Patrick K Capon
- ARC Centre of Excellence for Nanoscale BioPhotonics (CNBP), Adelaide, Australia
- Institute for Photonics and Advanced Sensing (IPAS), The University of Adelaide, North Terrace, Adelaide, SA 5005, Australia
- Department of Chemistry, School of Physical Sciences, The University of Adelaide, North Terrace, Adelaide, SA 5005, Australia
| | - Benjamin J Pullen
- ARC Centre of Excellence for Nanoscale BioPhotonics (CNBP), Adelaide, Australia
- Institute for Photonics and Advanced Sensing (IPAS), The University of Adelaide, North Terrace, Adelaide, SA 5005, Australia
- South Australian Health and Medical Research Institute (SAHMRI) and School of Medicine, The University of Adelaide, North Terrace, Adelaide, SA 5001, Australia
| | - Philipp Reineck
- ARC Centre of Excellence for Nanoscale BioPhotonics (CNBP), Adelaide, Australia
- School of Science, RMIT University, Melbourne, VIC 3001, Australia
| | - Nisha Schwarz
- ARC Centre of Excellence for Nanoscale BioPhotonics (CNBP), Adelaide, Australia
- South Australian Health and Medical Research Institute (SAHMRI) and School of Medicine, The University of Adelaide, North Terrace, Adelaide, SA 5001, Australia
| | - Peter J Psaltis
- ARC Centre of Excellence for Nanoscale BioPhotonics (CNBP), Adelaide, Australia
- South Australian Health and Medical Research Institute (SAHMRI) and School of Medicine, The University of Adelaide, North Terrace, Adelaide, SA 5001, Australia
| | - Stephen J Nicholls
- ARC Centre of Excellence for Nanoscale BioPhotonics (CNBP), Adelaide, Australia
- South Australian Health and Medical Research Institute (SAHMRI) and School of Medicine, The University of Adelaide, North Terrace, Adelaide, SA 5001, Australia
| | - Brant C Gibson
- ARC Centre of Excellence for Nanoscale BioPhotonics (CNBP), Adelaide, Australia
- School of Science, RMIT University, Melbourne, VIC 3001, Australia
| | - Andrew D Abell
- ARC Centre of Excellence for Nanoscale BioPhotonics (CNBP), Adelaide, Australia.
- Institute for Photonics and Advanced Sensing (IPAS), The University of Adelaide, North Terrace, Adelaide, SA 5005, Australia.
- Department of Chemistry, School of Physical Sciences, The University of Adelaide, North Terrace, Adelaide, SA 5005, Australia.
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Oh SW, Weiss JWE, Kerneghan PA, Korobkov I, Maly KE, Bryce DL. Solid-state 11B and 13C NMR, IR, and X-ray crystallographic characterization of selected arylboronic acids and their catechol cyclic esters. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2012; 50:388-401. [PMID: 22499215 DOI: 10.1002/mrc.3815] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2011] [Revised: 02/27/2012] [Accepted: 03/02/2012] [Indexed: 05/31/2023]
Abstract
Nine arylboronic acids, seven arylboronic catechol cyclic esters, and two trimeric arylboronic anhydrides (boroxines) are investigated using (11)B solid-state NMR spectroscopy at three different magnetic field strengths (9.4, 11.7, and 21.1 T). Through the analysis of spectra of static and magic-angle spinning samples, the (11)B electric field gradient and chemical shift tensors are determined. The effects of relaxation anisotropy and nutation field strength on the (11)B NMR line shapes are investigated. Infrared spectroscopy was also used to help identify peaks in the NMR spectra as being due to the anhydride form in some of the arylboronic acid samples. Seven new X-ray crystallographic structures are reported. Calculations of the (11)B NMR parameters are performed using cluster model and periodic gauge-including projector-augmented wave (GIPAW) density functional theory (DFT) approaches, and the results are compared with the experimental values. Carbon-13 solid-state NMR experiments and spectral simulations are applied to determine the chemical shifts of the ipso carbons of the samples. One bond indirect (13)C-(11)B spin-spin (J) coupling constants are also measured experimentally and compared with calculated values. The (11)B/(10)B isotope effect on the (13)C chemical shift of the ipso carbons of arylboronic acids and their catechol esters, as well as residual dipolar coupling, is discussed. Overall, this combined X-ray, NMR, IR, and computational study provides valuable new insights into the relationship between NMR parameters and the structure of boronic acids and esters.
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Affiliation(s)
- Se-Woung Oh
- Department of Chemistry, University of Ottawa, Ottawa, ON, Canada
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Ketuly KA, Hadi AHA. Boronate derivatives of functionally diverse catechols: stability studies. Molecules 2010; 15:2347-56. [PMID: 20428047 PMCID: PMC6257398 DOI: 10.3390/molecules15042347] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2010] [Revised: 02/25/2010] [Accepted: 03/22/2010] [Indexed: 11/16/2022] Open
Abstract
Benzeneboronate of catecholic carboxyl methyl esters, N-acetyldopamine, coumarin and catechol estrogens were prepared as crystalline derivatives in high yield. Related catechol compounds with extra polar functional group(s) (OH, NH2) do not form or only partially form unstable cyclic boronate derivatives.
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Affiliation(s)
- Kamal Aziz Ketuly
- Chemistry Department, Faculty of Science, University Malaya, Kuala Lumpur, Malaysia.
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