Mechanophysical Synthesis of Core/Shell Hybrid Supraparticles

Surface modification of polymer microparticles (MPs) is often essential to impart functionalities beyond their inherent properties. However, decorating these surfaces typically requires complex, multi-step wet chemistry processes to direct assembly and bonding between surfaces, which are not only challenging to control and scale up but also pose significant environmental concerns. Inspired by asteroid impact events, assembly of core/shell hybrid supraparticles (HSPs) is demonstrated via collision-driven, one-step dry mixing of inorganic nanoparticles (NPs) and polymer MPs with a significant contrast in elastic moduli- a process termed "mechanophysical synthesis." Through the interplay of interfacial energy and collision energy, NPs are stably embedded onto the MP surface. The degree of surface coverage depends on mixing velocity and duration, aligning with results from particle collision simulations. HSPs can be created from a diverse combination of MPs and NPs, regardless of their shapes or chemistry. Furthermore, different types of functional NPs-such as magnetic, photocatalytic, and ion-adsorptive-can be simultaneously introduced onto the MPs. The resulting HSPs can not only remove toxic water pollutants, but also be easily recovered and reused. The mechanophysical synthesis approach opens a new direction for sustainable and versatile self-assembly of heterogeneous MPs, minimizing the use of excessive chemicals and solvents.

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Publication Details

Journal
Advanced Materials
Published
2025-04-24
DOI
https://doi.org/10.1002/adma.202502718
Citations
4
Primary Topic
Pickering emulsions and particle stabilization
Type
article
Field-Weighted Citation Impact
2.07

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article

Mechanophysical Synthesis of Core/Shell Hybrid Supraparticles

Jin Hong Lee, Cheol‐Min Yang, Seung‐Yeol Jeon, Seong Hwan Lee et al.
4 citations
Advanced Materials
Pickering emulsions and particle stabilization
2.07
article

Mechanophysical Synthesis of Core/Shell Hybrid Supraparticles

Jin Hong Lee, Cheol‐Min Yang, Seung‐Yeol Jeon, Seong Hwan Lee, Bo‐In Park, Dong Woog Lee, Seunggun Yu, Geonho Lee, Jeonguk Hwang, Jinhoon Lee, Il Jin Kim, Jae Ryung Choi, Shu Yang, Jinwoo Park, Jin Su Kim, Yunseok Choi
article en
4 citations

Abstract

Surface modification of polymer microparticles (MPs) is often essential to impart functionalities beyond their inherent properties. However, decorating these surfaces typically requires complex, multi-step wet chemistry processes to direct assembly and bonding between surfaces, which are not only challenging to control and scale up but also pose significant environmental concerns. Inspired by asteroid impact events, assembly of core/shell hybrid supraparticles (HSPs) is demonstrated via collision-driven, one-step dry mixing of inorganic nanoparticles (NPs) and polymer MPs with a significant contrast in elastic moduli- a process termed "mechanophysical synthesis." Through the interplay of interfacial energy and collision energy, NPs are stably embedded onto the MP surface. The degree of surface coverage depends on mixing velocity and duration, aligning with results from particle collision simulations. HSPs can be created from a diverse combination of MPs and NPs, regardless of their shapes or chemistry. Furthermore, different types of functional NPs-such as magnetic, photocatalytic, and ion-adsorptive-can be simultaneously introduced onto the MPs. The resulting HSPs can not only remove toxic water pollutants, but also be easily recovered and reused. The mechanophysical synthesis approach opens a new direction for sustainable and versatile self-assembly of heterogeneous MPs, minimizing the use of excessive chemicals and solvents.

Advanced MaterialsVol. 37(28)
Korea Electrotechnology Research Institute (KR), Washington University in St. Louis (US), Korea Institute of Materials Science (KR), Ulsan National Institute of Science and Technology (KR), Pusan National University (KR), Korea Institute of Science and Technology (KR), University of Pennsylvania (US), Jeonbuk National University (KR), Korea University of Science and Technology (KR)
National Research Foundation, Korea Institute of Science and Technology, Korea Electrotechnology Research Institute, Ministry of Science and ICT, South Korea, Institute of Civil-Military Technology Cooperation, Defense Acquisition Program Administration
Responsible consumption and production
Openalex Percentile: Top 14%
Pickering emulsions and particle stabilization
2.07
DOIOpen Access PDFOpenAlex
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