Výsledky vyhledávání - "Praveen N. Gunawardene"

Towards the design of self-sorting nanomaterials through kinetically directed chemoselective control over interfacial surface chemistry

Autor: Praveen N. Gunawardene, Max Weissman, Jack E. Bowman, Pierangelo Gobbo, Mark S. Workentin

Publikováno v: Journal of Materials Chemistry B. 11:4661-4665

Gold nanoparticles can be selectively modified post-synthesis using kinetically tunable strain-promoted azide-alkyne (SPAAC) or azide-nitrone (SPANC) cycloaddition interfacial chemistry providing kinetically-directed strategies for self-sorting.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::05013909474344f5592bc69f2d3d081c
https://doi.org/10.1039/d3tb00207a

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Controlling the Structure, Properties and Surface Reactivity of Clickable Azide‐Functionalized Au 25 (SR) 18 Nanocluster Platforms Through Regioisomeric Ligand Modifications

Autor: Praveen N. Gunawardene, Julia Martin, Jonathan M. Wong, Zhifeng Ding, John F. Corrigan, Mark S. Workentin

Publikováno v: Angewandte Chemie. 134

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2b06fc0fa62bccccd51307547daab02d
https://doi.org/10.1002/ange.202205194

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Controlling the Structure, Properties and Surface Reactivity of Clickable Azide-Functionalized Au

Autor: Praveen N, Gunawardene, Julia, Martin, Jonathan M, Wong, Zhifeng, Ding, John F, Corrigan, Mark S, Workentin

Publikováno v: Angewandte Chemie (International ed. in English). 61(29)

To fine-tune structure-property correlations of thiolate-protected gold nanoclusters through post-assembly surface modifications, we report the synthesis of the o, m, and p regioisomeric forms of the anionic azide-functionalized [Au

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::59268e3d2c27dbf92602a4e0c78beb44
https://pubmed.ncbi.nlm.nih.gov/35580012

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Golden Opportunity: A Clickable Azide-Functionalized [Au25(SR)18]− Nanocluster Platform for Interfacial Surface Modifications

Autor: John F. Corrigan, Praveen N. Gunawardene, Mark S. Workentin

Publikováno v: Journal of the American Chemical Society. 141:11781-11785

Ultrasmall atomically precise monolayer-protected gold thiolate nanoclusters are an intensely researched nanomaterial framework, but there is a lack of a system that can be directly synthesized and...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5511553f6559daeff0c901e5685edc80
https://doi.org/10.1021/jacs.9b05182

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Highly Electron-Deficient Pyridinium-Nitrones for Rapid and Tunable Inverse-Electron-Demand Strain-Promoted Alkyne-Nitrone Cycloaddition

Autor: Wilson Luo, Alexander M. Polgar, Mark S. Workentin, Praveen N. Gunawardene, John F. Corrigan

Publikováno v: Organic Letters. 21:5547-5551

Highly accelerated inverse-electron-demand strain-promoted alkyne-nitrone cycloaddition (IED SPANC) between a stable cyclooctyne (bicyclo[6.1.0]nonyne (BCN)) and nitrones delocalized into a Cα-pyridinium functionality is reported, with the most elec

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bb56ae4dd9eaf679538acf32c3587a1b
https://doi.org/10.1021/acs.orglett.9b01863

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Highly Electron-Deficient Pyridinium-Nitrones for Rapid and Tunable Inverse-Electron-Demand Strain-Promoted Alkyne-Nitrone Cycloaddition to Bicyclo[6.1.0]nonyne

Autor: John F. Corrigan, Wilson Luo, Praveen N. Gunawardene, Mark S. Workentin, Alexander M. Polgar

Highly accelerated inverse-electron-demand strain-promoted alkyne-nitrone cycloaddition (IED SPANC) between a sta- ble cyclooctyne (bicyclo[6.1.0]nonyne (BCN)) and nitrones delocalized into a Cα-pyridinium functionality is reported, with the most el

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::03675166aec0642e34fb4e155c439595
https://doi.org/10.26434/chemrxiv.8251370

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NHC Ligated Group 11 Metal-Arylthiolates Containing an Azide Functionality Amenable to 'Click' Reaction Chemistry

Autor: John F. Corrigan, Vaishnavi Somasundaram, Praveen N. Gunawardene, Alexander M. Polgar, Mark S. Workentin

Publikováno v: Inorganic chemistry. 57(17)

The reaction of N-heterocyclic carbene (NHC) Group 11 metal complexes, [(NHC)M–X] (X = chloride, acetate), with the new azide-modified arylthiol 1-HSCH2-2,5-Me2-4-N3CH2-C6H2, 1 (for M = Au; X = Cl)...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::49f98860afc3f3a95ec8a13e913e0bf0
https://pubmed.ncbi.nlm.nih.gov/30113838

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Fluorogenic Gold Nanoparticle (AuNP) Substrate: A Model for the Controlled Release of Molecules from AuNP Nanocarriers via Interfacial Staudinger-Bertozzi Ligation

Autor: Praveen N. Gunawardene, Mark S. Workentin, Wilson Luo, Pierangelo Gobbo

The ability to regulate small-molecule release from metallic nanoparticle substrates offers unprecedented opportunities for nanocarrier-based imaging, sensing, and drug-delivery applications. Herein we report a novel and highly specific release metho

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::939df2116ea1b3a197cde846cf301cdd
https://hdl.handle.net/11368/3004354

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Synthesis of a Toolbox of Clickable Rhodamine B Derivatives

Autor: Mark S. Workentin, Wilson Luo, Praveen N. Gunawardene, Pierangelo Gobbo

An efficient method for the large-scale preparation of rhodamine B clickable derivatives has been developed. Starting from inexpensive rhodamine B as the starting material it was possible to functionalize the carboxylic functionality of rhodamine B w

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::73a66c5486f030579f7d9f49a05239fe
http://hdl.handle.net/11368/3004350

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