Computational Modeling of Gold Nanoparticle Interacting with Molecules of Pharmaceutical Interest in Water
We derived a theory of biomolecule binding to the surface of Au<i><sub>n</sub></i> clusters and of the Au plane based on the hard soft acid base (HSAB) principle and the free electron metallic surface model. With the use of quantum mechanical calculations, the chemical potent...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-10-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/28/20/7167 |
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| author | Massimo Fusaro Andrzej Leś Elżbieta U. Stolarczyk Krzysztof Stolarczyk |
| author_facet | Massimo Fusaro Andrzej Leś Elżbieta U. Stolarczyk Krzysztof Stolarczyk |
| author_sort | Massimo Fusaro |
| collection | DOAJ |
| description | We derived a theory of biomolecule binding to the surface of Au<i><sub>n</sub></i> clusters and of the Au plane based on the hard soft acid base (HSAB) principle and the free electron metallic surface model. With the use of quantum mechanical calculations, the chemical potential (<i>μ</i>) and the chemical hardness (<i>η</i>) of the biomolecules are estimated. The effect of the gold is introduced via the empirical value of the gold chemical potential (−5.77 eV) as well as by using the expression (modified here) for the chemical hardness (<i>η</i>). The effect of an aqueous environment is introduced by means of the ligand molecular geometry influenced by the PCM field. This theory allows for a fast and low-cost estimation of binding biomolecules to the AuNPs surface. The predicted binding of thiolated genistein and abiraterone to the gold surface is about 20 kcal/mol. The model of the exchange reaction between these biomolecules and citrates on the Au surface corresponds well with the experimental observations for thiolated abiraterone. Moreover, using a model of the place exchange of linear mercaptohydrocarbons on 12-mercaptododecane acid methyl ester bound to the Au surface, the present results reflect the known relation between exchange energy and the size of the reagents. |
| first_indexed | 2024-03-10T21:00:53Z |
| format | Article |
| id | doaj.art-aa129e197cde4b13a121ca85c54d177d |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-10T21:00:53Z |
| publishDate | 2023-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-aa129e197cde4b13a121ca85c54d177d2023-11-19T17:33:44ZengMDPI AGMolecules1420-30492023-10-012820716710.3390/molecules28207167Computational Modeling of Gold Nanoparticle Interacting with Molecules of Pharmaceutical Interest in WaterMassimo Fusaro0Andrzej Leś1Elżbieta U. Stolarczyk2Krzysztof Stolarczyk3Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, PolandFaculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, PolandNational Medicines Institute, Chełmska 30/34, 00-725 Warsaw, PolandFaculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, PolandWe derived a theory of biomolecule binding to the surface of Au<i><sub>n</sub></i> clusters and of the Au plane based on the hard soft acid base (HSAB) principle and the free electron metallic surface model. With the use of quantum mechanical calculations, the chemical potential (<i>μ</i>) and the chemical hardness (<i>η</i>) of the biomolecules are estimated. The effect of the gold is introduced via the empirical value of the gold chemical potential (−5.77 eV) as well as by using the expression (modified here) for the chemical hardness (<i>η</i>). The effect of an aqueous environment is introduced by means of the ligand molecular geometry influenced by the PCM field. This theory allows for a fast and low-cost estimation of binding biomolecules to the AuNPs surface. The predicted binding of thiolated genistein and abiraterone to the gold surface is about 20 kcal/mol. The model of the exchange reaction between these biomolecules and citrates on the Au surface corresponds well with the experimental observations for thiolated abiraterone. Moreover, using a model of the place exchange of linear mercaptohydrocarbons on 12-mercaptododecane acid methyl ester bound to the Au surface, the present results reflect the known relation between exchange energy and the size of the reagents.https://www.mdpi.com/1420-3049/28/20/7167gold nanoparticlesderivativesgenisteinabirateroneethanethiolmethanethiol |
| spellingShingle | Massimo Fusaro Andrzej Leś Elżbieta U. Stolarczyk Krzysztof Stolarczyk Computational Modeling of Gold Nanoparticle Interacting with Molecules of Pharmaceutical Interest in Water Molecules gold nanoparticles derivatives genistein abiraterone ethanethiol methanethiol |
| title | Computational Modeling of Gold Nanoparticle Interacting with Molecules of Pharmaceutical Interest in Water |
| title_full | Computational Modeling of Gold Nanoparticle Interacting with Molecules of Pharmaceutical Interest in Water |
| title_fullStr | Computational Modeling of Gold Nanoparticle Interacting with Molecules of Pharmaceutical Interest in Water |
| title_full_unstemmed | Computational Modeling of Gold Nanoparticle Interacting with Molecules of Pharmaceutical Interest in Water |
| title_short | Computational Modeling of Gold Nanoparticle Interacting with Molecules of Pharmaceutical Interest in Water |
| title_sort | computational modeling of gold nanoparticle interacting with molecules of pharmaceutical interest in water |
| topic | gold nanoparticles derivatives genistein abiraterone ethanethiol methanethiol |
| url | https://www.mdpi.com/1420-3049/28/20/7167 |
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