Shaping Nanoparticles for Interface Catalysis: Concave Hollow Spheres via Deflation-Inflation Asymmetric Growth

Advanced Science
Rongtai YuChengzhong Yu

Abstract

Hollow spheres are charming objects in nature. In this work, an unexpected deflation-inflation asymmetric growth (DIAG) strategy is reported, generating hollow nanoparticles with tailored concave geometry for interface catalysis. Starting from aminophenol-formaldehyde (APF) nanospheres where the interior crosslinking degree is low, fully deflated nanobowls are obtained after etching by acetone. Due to APF etching and repolymerization reactions occuring asymmetrically within a single particle, an autonomous inflation process is observed similar to a deflated basketball that inflates back to a "normal" ball, which is rare at the nanoscale. A nucleophilic addition reaction between acetone and APF is elucidated to explain the chemistry origin of the DIAG process. Interestingly, the deflated APF hollow spheres enable preferential immobilization of lipase in the concave domain, which facilitates the stabilization of Pickering emulsion droplets for enhanced enzymatic catalysis at the oil-water interface. The study provides new understandings in the designable synthesis of hollow nanoparticles and paves the way toward a wide range of applications of asymmetric architectures.

References

Dec 1, 2007·Journal of the American Chemical Society·Jing Li, Hua Chun Zeng
Oct 27, 2010·Journal of the American Chemical Society·Zhiyu WangXiong Wen Lou
Feb 9, 2012·Chemical Society Reviews·Matthew E Belowich, J Fraser Stoddart
Oct 25, 2012·Chemical Society Reviews·Yiding LiuYadong Yin
Jun 4, 2013·Journal of the American Chemical Society·Jianwei NaiLin Guo
Oct 27, 2014·Nature Materials·Ulrike G K WegstRobert O Ritchie
Jul 30, 2015·Journal of the American Chemical Society·Deyu LiuGalen D Stucky
Apr 26, 2017·Journal of the American Chemical Society·Prasanna Lakshmi AbbarajuChengzhong Yu
Sep 1, 2017·Journal of the American Chemical Society·De-Shan BinLi-Jun Wan
Dec 28, 2017·Journal of the American Chemical Society·Zhaogang TengGuangming Lu
Jul 12, 2018·Journal of the American Chemical Society·Tiancong ZhaoDongyuan Zhao
Aug 31, 2018·Advanced Materials·Hao SongChengzhong Yu
Oct 5, 2018·Advanced Materials·Zhaogang TengDongyuan Zhao
Apr 6, 2019·Nature Communications·Fei HanHongyu Chen
Apr 17, 2019·Angewandte Chemie·Lei WangSamuel Sánchez

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Citations

Oct 1, 2021·Chemistry : a European Journal·Yanzhi WangHaoquan Zheng

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Methods Mentioned

BETA
transmission electron microscopy
electron tomography
NMR
nuclear magnetic resonance
electron microscopy
dynamic light scattering
confocal microscopy

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