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Cui Y, Wu H, Zhang S, Zhang Z, Cheng G, Sun R, Shi Y, Hu Y. Nanoscale hyperthermia mesostructures for sustainable antimicrobial design. CELL REPORTS. PHYSICAL SCIENCE 2024; 5:102081. [PMID: 39092206 PMCID: PMC11293369 DOI: 10.1016/j.xcrp.2024.102081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 08/04/2024]
Abstract
Sustainability is critical in addressing global challenges posed by prolonged pandemics that impact health, economies, and the environment. Here, we introduce a molecular engineering approach for thermoregulated antimicrobial management inspired by firewalking rituals. The study uses in situ spectroscopy and multi-scale modeling to validate a hierarchical design. Efficient light-to-thermal energy conversion is achieved by engineering the molecular band structure. Rapid nanoscale hyperthermia is facilitated through thermal engineering. This approach significantly reduces the half-life of pathogens such as Escherichia coli, influenza A, and severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) to 1.4 min while maintaining a low perceived temperature on human skin. Standard disease infection and epidemic models show this technology's potential to flatten outbreak curves and delay peak infection rates, which is crucial during the early stages of pandemics when developing vaccines and antiviral drugs takes time. The scalable manufacturing and broad antimicrobial applicability hold great promise for controlling emerging infectious diseases and diverse bioprotective applications.
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Affiliation(s)
- Ying Cui
- Department of Mechanical and Aerospace Engineering, School of Engineering and Applied Science, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Huan Wu
- Department of Mechanical and Aerospace Engineering, School of Engineering and Applied Science, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Shilei Zhang
- Department of Microbiology, Immunology and Molecular Genetics, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Zhihan Zhang
- Department of Mechanical and Aerospace Engineering, School of Engineering and Applied Science, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Genhong Cheng
- Department of Microbiology, Immunology and Molecular Genetics, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Ren Sun
- Department of Molecular and Medical Pharmacology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Yuan Shi
- Department of Molecular and Medical Pharmacology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Yongjie Hu
- Department of Mechanical and Aerospace Engineering, School of Engineering and Applied Science, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Lead contact
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Wu H, Qin Z, Li S, Lindsay L, Hu Y. Non-Perturbative Determination of Isotope-induced Anomalous Vibrational Physics. PHYSICAL REVIEW. B 2023; 108:L140302. [PMID: 38881566 PMCID: PMC11180458 DOI: 10.1103/physrevb.108.l140302] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2024]
Abstract
In general, vibrational physics has been well described by quantum perturbation theory to provide footprint characteristics for common crystals. However, despite weak phonon anharmonicity, the recently discovered cubic crystals have shown anomalous vibrational dynamics with elusive fundamental origin. Here, we developed a non-perturbative ab initio approach, in together with spectroscopy and high-pressure experiments, to successfully determine the exact dynamic evolutions of the vibrational physics for the first time. We found that the local fluctuation and coupling isotopes significantly dictate the vibrational spectra, through the Brillouin zone folding that has been previously ignored in literature. By decomposing vibrational spectra into individual isotope eigenvectors, we observed both positive and negative contributions to Raman intensity from constitutional atoms (10B, 11B, 75As or 31P). Importantly, our non-perturbative theory predicts that a novel vibrational resonance appears at high hydrostatic pressure due to broken translational symmetry, which was indeed verified by experimental measurement under a pressure up to 31.5 GPa. Our study develops fundamental understandings for the anomalous lattice physics under the failure of quantum perturbation theory and provides a new approach in exploring novel transport phenomena for materials of extreme properties.
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Affiliation(s)
- Huan Wu
- School of Engineering and Applied Science, University of California, Los Angeles, Los Angeles, California 90095, USA
| | - Zihao Qin
- School of Engineering and Applied Science, University of California, Los Angeles, Los Angeles, California 90095, USA
| | - Suixuan Li
- School of Engineering and Applied Science, University of California, Los Angeles, Los Angeles, California 90095, USA
| | - Lucas Lindsay
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - Yongjie Hu
- School of Engineering and Applied Science, University of California, Los Angeles, Los Angeles, California 90095, USA
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Sun S, Shi XL, Li M, Wu T, Yin L, Wang D, Liu Q, Chen ZG. Ultrafast and Cost-Effective Fabrication of High-Performance Carbon-Based Flexible Thermoelectric Hybrid Films and Their Devices. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37196363 DOI: 10.1021/acsami.3c05226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Due to their cost-effectiveness and industry-scale feasibility, carbon-based composites have been considered to be promising thermoelectric materials for low-grade power generation. However, current fabrications for carbon-based composites are time-consuming, and their thermoelectric properties are still low. Herein, we develop an ultrafast and cost-effective hot-pressing method to fabricate a novel carbon-based hybrid film, which consists of ionic liquid/phenolic resin/carbon fiber/expanded graphite. This method only costs no more than 15 min. We found that the expanded graphite as the major component enables high flexibility and the introduction of phenolic resin and carbon fiber enhances the shear resistance and toughness of the film, while the ion-induced carrier migration contributes to a high power factor of 38.7 μW m-1 K-2 at 500 K in the carbon-based hybrid film. After the comparison based on the ratios between the power factor with fabrication time and cost among the current conventional carbon-based thermoelectric composites, our hybrid films show the best cost-effective property. Besides, a flexible thermoelectric device, assembled by the as-designed hybrid films, shows a maximum output power density of 79.3 nW cm-2 at a temperature difference of 20 K. This work paves a new way to fabricate cost-effective and high-performance carbon-based thermoelectric hybrids with promising application potential.
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Affiliation(s)
- Shuai Sun
- Centre for Future Materials, University of Southern Queensland, Springfield Central, Queensland 4300, Australia
- School of Chemistry and Physics and Center for Materials Science, Queensland University of Technology, Brisbane Queensland 4000, Australia
| | - Xiao-Lei Shi
- School of Chemistry and Physics and Center for Materials Science, Queensland University of Technology, Brisbane Queensland 4000, Australia
| | - Meng Li
- School of Chemistry and Physics and Center for Materials Science, Queensland University of Technology, Brisbane Queensland 4000, Australia
| | - Ting Wu
- State Key Laboratory of Materials Oriented Chemistry Engineering, College of Chemistry Engineering, Nanjing Tech University, Nanjing 211800, China
| | - Liangcao Yin
- State Key Laboratory of Materials Oriented Chemistry Engineering, College of Chemistry Engineering, Nanjing Tech University, Nanjing 211800, China
| | - Dezhuang Wang
- State Key Laboratory of Materials Oriented Chemistry Engineering, College of Chemistry Engineering, Nanjing Tech University, Nanjing 211800, China
| | - Qingfeng Liu
- State Key Laboratory of Materials Oriented Chemistry Engineering, College of Chemistry Engineering, Nanjing Tech University, Nanjing 211800, China
| | - Zhi-Gang Chen
- School of Chemistry and Physics and Center for Materials Science, Queensland University of Technology, Brisbane Queensland 4000, Australia
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Li S, Qin Z, Wu H, Li M, Kunz M, Alatas A, Kavner A, Hu Y. Anomalous thermal transport under high pressure in boron arsenide. Nature 2022; 612:459-464. [PMID: 36418403 DOI: 10.1038/s41586-022-05381-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 09/22/2022] [Indexed: 11/25/2022]
Abstract
High pressure represents extreme environments and provides opportunities for materials discovery1-8. Thermal transport under high hydrostatic pressure has been investigated for more than 100 years and all measurements of crystals so far have indicated a monotonically increasing lattice thermal conductivity. Here we report in situ thermal transport measurements in the newly discovered semiconductor crystal boron arsenide, and observe an anomalous pressure dependence of the thermal conductivity. We use ultrafast optics, Raman spectroscopy and inelastic X-ray scattering measurements to examine the phonon bandstructure evolution of the optical and acoustic branches, as well as thermal conductivity under varied temperatures and pressures up to 32 gigapascals. Using atomistic theory, we attribute the anomalous high-pressure behaviour to competitive heat conduction channels from interactive high-order anharmonicity physics inherent to the unique phonon bandstructure. Our study verifies ab initio theory calculations and we show that the phonon dynamics-resulting from competing three-phonon and four-phonon scattering processes-are beyond those expected from classical models and seen in common materials. This work uses high-pressure spectroscopy combined with atomistic theory as a powerful approach to probe complex phonon physics and provide fundamental insights for understanding microscopic energy transport in materials of extreme properties.
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Affiliation(s)
- Suixuan Li
- Department of Mechanical and Aerospace Engineering, University of California, Los Angeles, Los Angeles, CA, USA
| | - Zihao Qin
- Department of Mechanical and Aerospace Engineering, University of California, Los Angeles, Los Angeles, CA, USA
| | - Huan Wu
- Department of Mechanical and Aerospace Engineering, University of California, Los Angeles, Los Angeles, CA, USA
| | - Man Li
- Department of Mechanical and Aerospace Engineering, University of California, Los Angeles, Los Angeles, CA, USA
| | - Martin Kunz
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Ahmet Alatas
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL, USA
| | - Abby Kavner
- Department of Earth and Space Sciences, University of California, Los Angeles, Los Angeles, CA, USA
| | - Yongjie Hu
- Department of Mechanical and Aerospace Engineering, University of California, Los Angeles, Los Angeles, CA, USA.
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Cui P, Xing G, Nong Z, Chen L, Lai Z, Liu Y, Zhu J. Recent Advances on Composition-Microstructure-Properties Relationships of Precipitation Hardening Stainless Steel. MATERIALS (BASEL, SWITZERLAND) 2022; 15:8443. [PMID: 36499939 PMCID: PMC9737682 DOI: 10.3390/ma15238443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 11/16/2022] [Accepted: 11/16/2022] [Indexed: 06/17/2023]
Abstract
Precipitation hardening stainless steels have attracted extensive interest due to their distinguished mechanical properties. However, it is necessary to further uncover the internal quantitative relationship from the traditional standpoint based on the statistical perspective. In this review, we summarize the latest research progress on the relationships among the composition, microstructure, and properties of precipitation hardened stainless steels. First, the influence of general chemical composition and its fluctuation on the microstructure and properties of PHSS are elaborated. Then, the microstructure and properties under a typical heat treatment regime are discussed, including the precipitation of B2-NiAl particles, Cu-rich clusters, Ni3Ti precipitates, and other co-existing precipitates in PHSS and the hierarchical microstructural features are presented. Next, the microstructure and properties after the selective laser melting fabricating process which act as an emerging technology compared to conventional manufacturing techniques are also enlightened. Thereafter, the development of multi-scale simulation and machine learning (ML) in material design is illustrated with typical examples and the great concerns in PHSS research are presented, with a focus on the precipitation techniques, effect of composition, and microstructure. Finally, promising directions for future precipitation hardening stainless steel development combined with multi-scale simulation and ML methods are prospected, offering extensive insight into the innovation of novel precipitation hardening stainless steels.
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Affiliation(s)
- Puchang Cui
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Geshu Xing
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Zhisheng Nong
- School of Materials Science and Engineering, Shenyang Aerospace University, Shenyang 110136, China
| | - Liang Chen
- Aero Engine Corporation of China Gas Turbine Co., Ltd., Shenyang 110623, China
| | - Zhonghong Lai
- Center for Analysis, Measurement and Computing, Harbin Institute of Technology, Harbin 150001, China
| | - Yong Liu
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
- National Key Laboratory for Precision Hot Processing of Metals, Harbin Institute of Technology, Harbin 150001, China
| | - Jingchuan Zhu
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
- National Key Laboratory for Precision Hot Processing of Metals, Harbin Institute of Technology, Harbin 150001, China
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