Single- and multi-component chiral supraparticles as modular enantioselective catalysts

Li, Si; Liu, Juan; Ramesar, Naomi S.; Heinz, Hendrik; Xu, Liguang; Xu, Chuanlai; Kotov, Nicholas A.

doi:10.1038/s41467-019-12134-4

Single- and multi-component chiral supraparticles as modular enantioselective catalysts

Journal Article · Wed Oct 23 00:00:00 EDT 2019 · Nature Communications

DOI:https://doi.org/10.1038/s41467-019-12134-4· OSTI ID:1624192

Li, Si ^[1]; Liu, Juan ^[2]; Ramesar, Naomi S. ^[3]; Heinz, Hendrik ^[2]; Xu, Liguang ^[4]; ^[4]; ^[5]

State Key Lab of Food Science and Technology, International Joint Research Laboratory for Biointerface and Biodetection, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, Jiangsu, People’s Republic of China Department of Chemi; DOE/OSTI
Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado, USA
Department of Chemical Engineering, University of Michigan, Ann Arbor, MI, 48109, USA Biointerfaces Institute, University of Michigan, Ann Arbor, MI, 48109, USA
State Key Lab of Food Science and Technology, International Joint Research Laboratory for Biointerface and Biodetection, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, Jiangsu, People’s Republic of China
Department of Chemical Engineering, University of Michigan, Ann Arbor, MI, 48109, USA Biointerfaces Institute, University of Michigan, Ann Arbor, MI, 48109, USA Department of Materials Science, University of Michigan, Ann Arbor, MI, 48109, USA Macrom

Nanoscale biological assemblies exemplified by exosomes, endosomes and capsids, play crucial roles in all living systems. Supraparticles (SP) from inorganic nanoparticles (NPs) replicate structural characteristics of these bioassemblies, but it is unknown whether they can mimic their biochemical functions. Here, we show that chiral ZnS NPs self-assemble into 70–100 nm SPs that display sub-nanoscale porosity associated with interstitial spaces between constituent NPs. Similarly to photosynthetic bacterial organelles, these SPs can serve as photocatalysts, enantioselectively converting L- or D-tyrosine (Tyr) into dityrosine (diTyr). Experimental data and molecular dynamic simulations indicate that the chiral bias of the photocatalytic reaction is associated with the chiral environment of interstitial spaces and preferential partitioning of enantiomers into SPs, which can be further enhanced by co-assembling ZnS with Au NPs. Besides replicating a specific function of biological nanoassemblies, these findings establish a path to enantioselective oxidative coupling of phenols for biomedical and other needs.

View Accepted Manuscript (DOE)

Research Organization:: Argonne National Lab. (ANL), Argonne, IL (United States)

Sponsoring Organization:: Department of the Army; National Natural Science Foundation of China; National Science Foundation; USDOE Office of Science (SC)

Grant/Contract Number:: AC02-06CH11357

OSTI ID:: 1624192

Journal Information:: Nature Communications, Journal Name: Nature Communications Journal Issue: 1 Vol. 10; ISSN 2041-1723

Publisher:: Nature Publishing GroupCopyright Statement

Country of Publication:: United States

Language:: English

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