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Blach D, Girardi VR, Silber JJ, Correa NM, Falcone RD. How the type of interface can alter the behavior of an aprotic ionic liquid-water mixture entrapped in different reverse micelles. An exploratory study using an enzymatic reaction as a sensor. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Dib N, Girardi VR, Silber JJ, Correa NM, Falcone RD. How the external solvent in biocompatible reverse micelles can improve the alkaline phosphatase behavior. Org Biomol Chem 2021; 19:4969-4977. [PMID: 34002175 DOI: 10.1039/d0ob02371j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In the last decade, the nature of the nonpolar solvents that can be part of reverse micelles (RMs) has been the topic of several investigations to improve their applications. In this sense, the hydrolysis of 1-naphthyl phosphate catalyzed by the enzyme alkaline phosphatase (AP) was used as a probe to investigate the effect of the change of the external solvent on RMs formulated with the anionic surfactant sodium diethylhexyl sulfosuccinate (AOT). As external nonpolar solvents, two biocompatible lipophilic esters, isopropyl myristate and methyl laurate, and the traditional nonpolar solvents, n-heptane and benzene, were used. The results were compared among the RMs investigated and with the reaction in homogeneous media. Thus, the effect of the nanoconfinement as well as the impact of the replacement of a conventional external nonpolar solvent by biocompatible solvents were analyzed. The results indicate that the catalytic efficiency in the AOT RMs is larger than that in homogeneous media, denoting a different hydration level over the AP enzyme, which is directly related to the different degrees of nonpolar solvent penetration to the RM interface. Our findings demonstrated that toxic solvents such as n-heptane and benzene can be replaced by nontoxic ones (isopropyl myristate or methyl laurate) in AOT RMs without affecting the performance of micellar systems as nanoreactors, making them a green and promising alternative toward efficient and sustainable chemistry.
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Affiliation(s)
- Nahir Dib
- Departamento de Química, Universidad Nacional de Rio Cuarto, Agencia Postal 3, C.P. X5804BYA, Ruta Nacional 36, km 601, Rio Cuarto, Córdoba, Argentina and Instituto de Desarrollo Agroindustrial y de la Salud (IDAS), Universidad Nacional de Río Cuarto, Agencia Postal 3, C.P. X5804BYA, Ruta Nacional 36, km 601, Río Cuarto, Córdoba, Argentina.
| | - Valeria R Girardi
- Departamento de Química, Universidad Nacional de Rio Cuarto, Agencia Postal 3, C.P. X5804BYA, Ruta Nacional 36, km 601, Rio Cuarto, Córdoba, Argentina
| | - Juana J Silber
- Departamento de Química, Universidad Nacional de Rio Cuarto, Agencia Postal 3, C.P. X5804BYA, Ruta Nacional 36, km 601, Rio Cuarto, Córdoba, Argentina and Instituto de Desarrollo Agroindustrial y de la Salud (IDAS), Universidad Nacional de Río Cuarto, Agencia Postal 3, C.P. X5804BYA, Ruta Nacional 36, km 601, Río Cuarto, Córdoba, Argentina.
| | - N Mariano Correa
- Departamento de Química, Universidad Nacional de Rio Cuarto, Agencia Postal 3, C.P. X5804BYA, Ruta Nacional 36, km 601, Rio Cuarto, Córdoba, Argentina and Instituto de Desarrollo Agroindustrial y de la Salud (IDAS), Universidad Nacional de Río Cuarto, Agencia Postal 3, C.P. X5804BYA, Ruta Nacional 36, km 601, Río Cuarto, Córdoba, Argentina.
| | - R Dario Falcone
- Departamento de Química, Universidad Nacional de Rio Cuarto, Agencia Postal 3, C.P. X5804BYA, Ruta Nacional 36, km 601, Rio Cuarto, Córdoba, Argentina and Instituto de Desarrollo Agroindustrial y de la Salud (IDAS), Universidad Nacional de Río Cuarto, Agencia Postal 3, C.P. X5804BYA, Ruta Nacional 36, km 601, Río Cuarto, Córdoba, Argentina.
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