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Zhou J, Song D, Mergelsberg ST, Wang Y, Adhikari NM, Lahiri N, Zhao Y, Chen P, Wang Z, Zhang X, Rosso KM. Facet-dependent dispersion and aggregation of aqueous hematite nanoparticles. SCIENCE ADVANCES 2024; 10:eadi7494. [PMID: 38354235 PMCID: PMC10866548 DOI: 10.1126/sciadv.adi7494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 01/12/2024] [Indexed: 02/16/2024]
Abstract
Nanoparticle aggregates in solution controls surface reactivity and function. Complete dispersion often requires additive sorbents to impart a net repulsive interaction between particles. Facet engineering of nanocrystals offers an alternative approach to produce monodisperse suspensions simply based on facet-specific interaction with solvent molecules. Here, we measure the dispersion/aggregation of three morphologies of hematite (α-Fe2O3) nanoparticles in varied aqueous solutions using ex situ electron microscopy and in situ small-angle x-ray scattering. We demonstrate a unique tendency of (104) hematite nanoparticles to maintain a monodisperse state across a wide range of solution conditions not observed with (001)- and (116)-dominated particles. Density functional theory calculations reveal an inert, densely hydrogen-bonded first water layer on the (104) facet that favors interparticle dispersion. Results validate the notion that nanoparticle dispersions can be controlled through morphology for specific solvents, which may help in the development of various nanoparticle applications that rely on their interfacial area to be highly accessible in stable suspensions.
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Affiliation(s)
| | | | | | - Yining Wang
- Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, USA
| | - Narendra M. Adhikari
- Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, USA
| | - Nabajit Lahiri
- Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, USA
| | - Yatong Zhao
- Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, USA
| | - Ping Chen
- Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, USA
| | - Zheming Wang
- Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, USA
| | - Xin Zhang
- Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, USA
| | - Kevin M. Rosso
- Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, USA
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Bai M, Sutrisno L, Duan J, Wan H, Chen G, Liu X, Ma R. Rare-earth hydroxide/MXene hybrid: a promising agent for near-infrared photothermy and magnetic resonance imaging. Chem Sci 2023; 14:10795-10799. [PMID: 37829024 PMCID: PMC10566459 DOI: 10.1039/d3sc02604c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 09/19/2023] [Indexed: 10/14/2023] Open
Abstract
Layered gadolinium hydroxide (LGdH) and Ti3C2 monolayers were assembled into a LGdH/Ti3C2 (GTC) hybrid. The hybrid demonstrated enhanced near-infrared (NIR) light absorption properties and superior photothermal performance. Moreover, the GTC hybrid achieved an excellent T1-weighted magnetic resonance imaging (MRI) effect.
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Affiliation(s)
- Mingjun Bai
- College of Materials Science and Engineering, Chongqing University of Technology Chongqing 400054 P. R. China
- Zhongyuan Critical Metals Laboratory, Zhengzhou University Zhengzhou 450001 P. R. China
- Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS) Tsukuba Ibaraki 305-0044 Japan
| | - Linawati Sutrisno
- Department of Materials Science and Engineering, Graduate School of Pure and Applied Sciences Tsukuba Ibaraki 305-8577 Japan
- Research Center for Functional Materials, National Institute for Materials Science (NIMS) Tsukuba Ibaraki 305-0044 Japan
| | - Junhong Duan
- Department of Radiology, The Third Xiangya Hospital, Central South University Changsha Hunan 410013 P. R. China
| | - Hao Wan
- Zhongyuan Critical Metals Laboratory, Zhengzhou University Zhengzhou 450001 P. R. China
| | - Gen Chen
- School of Materials Science and Engineering, Central South University Changsha Hunan 410083 P. R. China
| | - Xiaohe Liu
- Zhongyuan Critical Metals Laboratory, Zhengzhou University Zhengzhou 450001 P. R. China
- School of Materials Science and Engineering, Central South University Changsha Hunan 410083 P. R. China
| | - Renzhi Ma
- Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS) Tsukuba Ibaraki 305-0044 Japan
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