Chiral imprinting in molten gallium

Vijay Bhooshan Kumar; Yitzhak Mastai; Ze'ev Porat; Aharon Gedanken

doi:10.1039/c4nj02081b

Chiral imprinting in molten gallium

Vijay Bhooshan Kumar, Yitzhak Mastai, Ze'ev Porat, Aharon Gedanken

Department of Chemistry

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18 Scopus citations

Abstract

Chiral imprinting in molten gallium can be attained by ultrasonic irradiation of molten Ga overlayed by an aqueous solution of D- or L-tryptophan. The products are micro/nanoparticles of Ga encapsulating molecules of one of the enantiomers. After leaching of the enantiomer in pure water, molecular templates are left on the surface of the gallium particles, enabling the entrapment of the specific enantiomer from a solution of the racemate and yielding an enantiomeric excess of 6-12%. The extent of the enantiomeric excess was determined using polarimetry, Chiral HPLC and circular dichroism measurements.

Original language	English
Pages (from-to)	2690-2696
Number of pages	7
Journal	New Journal of Chemistry
Volume	39
Issue number	4
DOIs	https://doi.org/10.1039/c4nj02081b
State	Published - 1 Apr 2015

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Publisher Copyright:
© The Royal Society of Chemistry and the Centre National de la Recherche Scientifique 2015.

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abstract = "Chiral imprinting in molten gallium can be attained by ultrasonic irradiation of molten Ga overlayed by an aqueous solution of D- or L-tryptophan. The products are micro/nanoparticles of Ga encapsulating molecules of one of the enantiomers. After leaching of the enantiomer in pure water, molecular templates are left on the surface of the gallium particles, enabling the entrapment of the specific enantiomer from a solution of the racemate and yielding an enantiomeric excess of 6-12%. The extent of the enantiomeric excess was determined using polarimetry, Chiral HPLC and circular dichroism measurements.",

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AU - Kumar, Vijay Bhooshan

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AU - Porat, Ze'ev

AU - Gedanken, Aharon

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AB - Chiral imprinting in molten gallium can be attained by ultrasonic irradiation of molten Ga overlayed by an aqueous solution of D- or L-tryptophan. The products are micro/nanoparticles of Ga encapsulating molecules of one of the enantiomers. After leaching of the enantiomer in pure water, molecular templates are left on the surface of the gallium particles, enabling the entrapment of the specific enantiomer from a solution of the racemate and yielding an enantiomeric excess of 6-12%. The extent of the enantiomeric excess was determined using polarimetry, Chiral HPLC and circular dichroism measurements.

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Chiral imprinting in molten gallium

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