Regioisomeric cryptand stabilized gold supraspheres and elongated dodecahedron supraparticles for reversible host–guest chemistry

Authors :: Kalyan K. Sadhu
Kapil Tomar
Parimal K. Bharadwaj
Ashish Kumar Verma
Meenaxi Saini
Source :: Chemical Communications. 54:12836-12839
Publication Year :: 2018
Publisher :: Royal Society of Chemistry (RSC), 2018.
Abstract: Addition of bis-pyrazole based cryptand regioisomers (1 and 2) to citrate stabilized gold nanoparticles (AuNPs) led to gold supraspheres (AuSSL) and elongated dodecahedron (AuEDL) supraparticles, respectively. These supraparticles as heterogenous hosts show a high uptake of a small fluorophore SEA-SC1 in an aqueous medium and reversible release in organic solvents.

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