51
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Ling J, Naren G, Kelly J, Fox DB, Prasanna de Silva A. Small molecular logic systems can draw the outlines of objects via edge visualization. Chem Sci 2015; 6:4472-4478. [PMID: 29142699 PMCID: PMC5665087 DOI: 10.1039/c5sc01537e] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Accepted: 06/04/2015] [Indexed: 01/30/2023] Open
Abstract
The recently-discovered ability of small logical molecules to recognize edges is exploited to achieve outline drawing from binary templates. Outlines of arbitrary curvature, several colours and thicknesses down to 1 mm are drawn in around 30 min or less by employing a common laboratory two-colour ultraviolet lamp. The outlines and the light dose-driven XOR logic with fluorescence output or 'off-on-off' action which is observed in the irradiated regions are modelled by combining foundational principles of photochemistry, acid-base neutralization and diffusion.
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Affiliation(s)
- Jue Ling
- School of Chemistry and Chemical Engineering , Queen's University , Belfast BT9 5AG , Northern Ireland , UK . ; ; Tel: +44(0) 28 9097 4422
| | - Gaowa Naren
- School of Chemistry and Chemical Engineering , Queen's University , Belfast BT9 5AG , Northern Ireland , UK . ; ; Tel: +44(0) 28 9097 4422
| | - Jessica Kelly
- School of Chemistry and Chemical Engineering , Queen's University , Belfast BT9 5AG , Northern Ireland , UK . ; ; Tel: +44(0) 28 9097 4422
| | - David B Fox
- School of Chemistry and Chemical Engineering , Queen's University , Belfast BT9 5AG , Northern Ireland , UK . ; ; Tel: +44(0) 28 9097 4422
| | - A Prasanna de Silva
- School of Chemistry and Chemical Engineering , Queen's University , Belfast BT9 5AG , Northern Ireland , UK . ; ; Tel: +44(0) 28 9097 4422
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52
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Tran TM, Alan Y, Glass TE. A highly selective fluorescent sensor for glucosamine. Chem Commun (Camb) 2015; 51:7915-8. [DOI: 10.1039/c5cc00415b] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A new fluorescent chemical sensor with a multifunctional binding pocket produces high selectivity for glucosamine over related biomolecules.
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Affiliation(s)
- Tam Minh Tran
- Department of Chemistry
- University of Missouri
- Columbia
- USA
| | - Yuksel Alan
- Department of Chemistry
- University of Missouri
- Columbia
- USA
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53
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Zhang P, Li J, Li B, Xu J, Zeng F, Lv J, Wu S. A logic gate-based fluorescent sensor for detecting H2S and NO in aqueous media and inside live cells. Chem Commun (Camb) 2015; 51:4414-6. [DOI: 10.1039/c4cc09737h] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A single fluorescent probe herein can sensitively and selectively detect H2S and NO in solution and in cells by using a logic gate approach.
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Affiliation(s)
- Peisheng Zhang
- College of Materials Science & Engineering
- State Key Lab of Luminescent Materials & Devices
- South China University of Technology
- Guangzhou 510640
- P. R. China
| | - Jun Li
- College of Materials Science & Engineering
- State Key Lab of Luminescent Materials & Devices
- South China University of Technology
- Guangzhou 510640
- P. R. China
| | - Bowen Li
- College of Materials Science & Engineering
- State Key Lab of Luminescent Materials & Devices
- South China University of Technology
- Guangzhou 510640
- P. R. China
| | - Jiangsheng Xu
- College of Materials Science & Engineering
- State Key Lab of Luminescent Materials & Devices
- South China University of Technology
- Guangzhou 510640
- P. R. China
| | - Fang Zeng
- College of Materials Science & Engineering
- State Key Lab of Luminescent Materials & Devices
- South China University of Technology
- Guangzhou 510640
- P. R. China
| | - Jun Lv
- College of Materials Science & Engineering
- State Key Lab of Luminescent Materials & Devices
- South China University of Technology
- Guangzhou 510640
- P. R. China
| | - Shuizhu Wu
- College of Materials Science & Engineering
- State Key Lab of Luminescent Materials & Devices
- South China University of Technology
- Guangzhou 510640
- P. R. China
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54
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55
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Norouzy A, Azizi Z, Nau WM. Indicator Displacement Assays Inside Live Cells. Angew Chem Int Ed Engl 2014; 54:792-5. [DOI: 10.1002/anie.201407808] [Citation(s) in RCA: 92] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Revised: 10/14/2014] [Indexed: 11/11/2022]
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56
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Hettie KS, Glass TE. Coumarin-3-aldehyde as a scaffold for the design of tunable PET-modulated fluorescent sensors for neurotransmitters. Chemistry 2014; 20:17488-99. [PMID: 25346467 DOI: 10.1002/chem.201403128] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2014] [Revised: 09/10/2014] [Indexed: 12/20/2022]
Abstract
NeuroSensor 521 (NS521) is a fluorescent sensor for primary-amine neurotransmitters based on a platform that consists of an aryl moiety appended to position C4 of the coumarin-3-aldehyde scaffold. We demonstrate that sensors based on this platform behave as a directly linked donor-acceptor system that operates through an intramolecular acceptor-excited photoinduced electron transfer (a-PET) mechanism. To evaluate the PET process, a series of benzene- and thiophene-substituted derivatives were prepared and the photophysical properties, binding affinities, and fluorescence responses toward glutamate, norepinephrine, and dopamine were determined. The calculated energy of the highest occupied molecular orbital (EHOMO ) of the pendant aryl substituents, along with oxidation and reduction potential values derived from the calculated molecular orbital energy values of the platform components, allowed for calculation of the fluorescence properties of the benzene sensor series. Interestingly, the thiophene derivatives did not fit the typical PET model, highlighting the limitations of the method. A new sensor, NeuroSensor 539, displayed enhanced photophysical properties aptly suited for biological imaging. NeuroSensor 539 was validated by selectively labeling and imaging norepinephrine in secretory vesicles of live chromaffin cells.
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Affiliation(s)
- Kenneth S Hettie
- Department of Chemistry, University of Missouri, Columbia, MO 65211 (USA)
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57
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Rao ML, Kumar A. Pd-catalyzed chemo-selective mono-arylations and bis-arylations of functionalized 4-chlorocoumarins with triarylbismuths as threefold arylating reagents. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.07.059] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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58
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Cooley CM, Hettie KS, Klockow JL, Garrison S, Glass TE. A selective fluorescent chemosensor for phosphoserine. Org Biomol Chem 2014; 11:7387-92. [PMID: 24065122 DOI: 10.1039/c3ob41677a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A fluorescent chemosensor for the detection of phosphoserine is reported. The ditopic sensor features a phosphate-coordinating zinc(II)-dipicolylamine (Zn(2+)-DPA) unit tethered to an amine-binding coumarin aldehyde fluorophore. With phosphoserine, the sensor demonstrates a 30-fold fluorescence enhancement under buffered aqueous conditions.
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Affiliation(s)
- Chad M Cooley
- Department of Chemistry, University of Missouri, 601 South College Avenue, Columbia, MO 65211, USA.
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59
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Wilson JN, Ladefoged LK, Babinchak WM, Schiøtt B. Binding-induced fluorescence of serotonin transporter ligands: A spectroscopic and structural study of 4-(4-(dimethylamino)phenyl)-1-methylpyridinium (APP(+)) and APP(+) analogues. ACS Chem Neurosci 2014; 5:296-304. [PMID: 24460204 DOI: 10.1021/cn400230x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
The binding-induced fluorescence of 4-(4-(dimethylamino)-phenyl)-1-methylpyridinium (APP(+)) and two new serotonin transporter (SERT)-binding fluorescent analogues, 1-butyl-4-[4-(1-dimethylamino)phenyl]-pyridinium bromide (BPP(+)) and 1-methyl-4-[4-(1-piperidinyl)phenyl]-pyridinium (PPP(+)), has been investigated. Optical spectroscopy reveals that these probes are highly sensitive to their chemical microenvironment, responding to variations in polarity with changes in transition energies and responding to changes in viscosity or rotational freedom with emission enhancements. Molecular docking calculations reveal that the probes are able to access the nonpolar and conformationally restrictive binding pocket of SERT. As a result, the probes exhibit previously not identified binding-induced turn-on emission that is spectroscopically distinct from dyes that have accumulated intracellularly. Thus, binding and transport dynamics of SERT ligands can be resolved both spatially and spectroscopically.
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Affiliation(s)
- James N. Wilson
- Department of Chemistry, University of Miami, Coral Gables, Florida 33124, United States
| | - Lucy Kate Ladefoged
- inSPIN
and iNANO Centers, Department of Chemistry, Aarhus University, 8000 Aarhus C, Denmark
| | - W. Michael Babinchak
- Department of Chemistry, University of Miami, Coral Gables, Florida 33124, United States
| | - Birgit Schiøtt
- inSPIN
and iNANO Centers, Department of Chemistry, Aarhus University, 8000 Aarhus C, Denmark
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60
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Hettie KS, Klockow JL, Glass TE. Three-Input Logic Gates with Potential Applications for Neuronal Imaging. J Am Chem Soc 2014; 136:4877-80. [DOI: 10.1021/ja501211v] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Kenneth S. Hettie
- Department of Chemistry, University of Missouri 601 South College Avenue, Columbia, Missouri 65211, United States
| | - Jessica L. Klockow
- Department of Chemistry, University of Missouri 601 South College Avenue, Columbia, Missouri 65211, United States
| | - Timothy E. Glass
- Department of Chemistry, University of Missouri 601 South College Avenue, Columbia, Missouri 65211, United States
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61
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An angular fluidic channel for prism-free surface-plasmon-assisted fluorescence capturing. Nat Commun 2013; 4:2855. [DOI: 10.1038/ncomms3855] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2013] [Accepted: 11/01/2013] [Indexed: 12/30/2022] Open
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62
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Klockow JL, Hettie KS, Glass TE. ExoSensor 517: a dual-analyte fluorescent chemosensor for visualizing neurotransmitter exocytosis. ACS Chem Neurosci 2013; 4:1334-8. [PMID: 23926946 DOI: 10.1021/cn400128s] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
A dual-analyte fluorescent chemosensor (ExoSensor 517) for the direct visualization of neurotransmitters released upon exocytosis is presented. The sensor exploits the high concentration of neurotransmitters (e.g., glutamate, norepinephrine, and dopamine) and the pH gradient between the vesicle and synaptic cleft. The cooperative recognition elements require both binding and a change in environmental pH to afford a fluorescence response which makes ExoSensor 517 one of the first integrated molecular logic gates to be used for biological applications.
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Affiliation(s)
- Jessica L. Klockow
- Department of Chemistry, University of Missouri—Columbia, 601 South College
Avenue, Columbia, Missouri 65211, United States
| | - Kenneth S. Hettie
- Department of Chemistry, University of Missouri—Columbia, 601 South College
Avenue, Columbia, Missouri 65211, United States
| | - Timothy E. Glass
- Department of Chemistry, University of Missouri—Columbia, 601 South College
Avenue, Columbia, Missouri 65211, United States
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