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Carlin M, Kaur J, Ciobanu DZ, Song Z, Olsson M, Totu T, Gupta G, Peng G, González VJ, Janica I, Pozo VF, Chortarea S, Buljan M, Buerki-Thurnherr T, Rio Castillo AED, Thorat SB, Bonaccorso F, Tubaro A, Vazquez E, Prato M, Armirotti A, Wick P, Bianco A, Fadeel B, Pelin M. Hazard assessment of hexagonal boron nitride and hexagonal boron nitride reinforced thermoplastic polyurethane composites using human skin and lung cells. JOURNAL OF HAZARDOUS MATERIALS 2024; 473:134686. [PMID: 38788582 DOI: 10.1016/j.jhazmat.2024.134686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Revised: 05/14/2024] [Accepted: 05/20/2024] [Indexed: 05/26/2024]
Abstract
Hexagonal boron nitride (hBN) is an emerging two-dimensional material attracting considerable attention in the industrial sector given its innovative physicochemical properties. Potential risks are associated mainly with occupational exposure where inhalation and skin contact are the most relevant exposure routes for workers. Here we aimed at characterizing the effects induced by composites of thermoplastic polyurethane (TPU) and hBN, using immortalized HaCaT skin keratinocytes and BEAS-2B bronchial epithelial cells. The composite was abraded using a Taber® rotary abraser and abraded TPU and TPU-hBN were also subjected to photo-Fenton-mediated degradation mimicking potential weathering across the product life cycle. Cells were exposed to the materials for 24 h (acute exposure) or twice per week for 4 weeks (chronic exposure) and evaluated with respect to material internalization, cytotoxicity, and proinflammatory cytokine secretion. Additionally, comprehensive mass spectrometry-based proteomics and metabolomics (secretomics) analyses were performed. Overall, despite evidence of cellular uptake of the material, no significant cellular and/or protein expression profiles alterations were observed after acute or chronic exposure of HaCaT or BEAS-2B cells, identifying only few pro-inflammatory proteins. Similar results were obtained for the degraded materials. These results support the determination of hazard profiles associated with cutaneous and pulmonary hBN-reinforced polymer composites exposure.
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Affiliation(s)
- Michela Carlin
- Department of Life Sciences, University of Trieste, Trieste, Italy
| | - Jasreen Kaur
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | | | - Zhengmei Song
- CNRS, Immunology, Immunopathology and Therapeutic Chemistry, UPR3572, University of Strasbourg, ISIS, 67000 Strasbourg, France
| | - Magnus Olsson
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Tiberiu Totu
- Laboratory for Particles-Biology Interactions, Federal Laboratory for Materials Science and Technology, (EMPA), St. Gallen, Switzerland; Swiss Institute of Bioinformatics (SIB), Lausanne, Switzerland; Department of Health Sciences and Technology, Eidgenössische Technische Hochschule Zürich (ETH), Zurich, Switzerland
| | - Govind Gupta
- Laboratory for Particles-Biology Interactions, Federal Laboratory for Materials Science and Technology, (EMPA), St. Gallen, Switzerland
| | - Guotao Peng
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Viviana Jehová González
- Regional Institute of Applied Scientific Research (IRICA), University of Castilla-La Mancha, Ciudad Real, Spain
| | - Iwona Janica
- CNRS, Immunology, Immunopathology and Therapeutic Chemistry, UPR3572, University of Strasbourg, ISIS, 67000 Strasbourg, France
| | - Victor Fuster Pozo
- Laboratory for Particles-Biology Interactions, Federal Laboratory for Materials Science and Technology, (EMPA), St. Gallen, Switzerland
| | - Savvina Chortarea
- Laboratory for Particles-Biology Interactions, Federal Laboratory for Materials Science and Technology, (EMPA), St. Gallen, Switzerland
| | - Marija Buljan
- Laboratory for Particles-Biology Interactions, Federal Laboratory for Materials Science and Technology, (EMPA), St. Gallen, Switzerland; Swiss Institute of Bioinformatics (SIB), Lausanne, Switzerland
| | - Tina Buerki-Thurnherr
- Laboratory for Particles-Biology Interactions, Federal Laboratory for Materials Science and Technology, (EMPA), St. Gallen, Switzerland
| | | | | | | | - Aurelia Tubaro
- Department of Life Sciences, University of Trieste, Trieste, Italy
| | - Ester Vazquez
- Regional Institute of Applied Scientific Research (IRICA), University of Castilla-La Mancha, Ciudad Real, Spain; Department of Organic Chemistry, Faculty of Science and Chemistry Technologies, University of Castilla-La Mancha, Ciudad Real, Spain
| | - Maurizio Prato
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Trieste, Italy; Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Donostia-San Sebastian, Spain; Basque Foundation for Science (IKERBASQUE), Bilbao, Spain
| | - Andrea Armirotti
- Analytical Chemistry Facility, Italian Institute of Technology, Genoa, Italy
| | - Peter Wick
- Laboratory for Particles-Biology Interactions, Federal Laboratory for Materials Science and Technology, (EMPA), St. Gallen, Switzerland
| | - Alberto Bianco
- CNRS, Immunology, Immunopathology and Therapeutic Chemistry, UPR3572, University of Strasbourg, ISIS, 67000 Strasbourg, France.
| | - Bengt Fadeel
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.
| | - Marco Pelin
- Department of Life Sciences, University of Trieste, Trieste, Italy.
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Bashir A, Niu H, Maqbool M, Usman A, Lv R, Ashraf Z, Cheng M, Bai S. A Novel Thermal Interface Material Composed of Vertically Aligned Boron Nitride and Graphite Films for Ultrahigh Through-Plane Thermal Conductivity. SMALL METHODS 2024:e2301788. [PMID: 38507731 DOI: 10.1002/smtd.202301788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2023] [Revised: 03/05/2024] [Indexed: 03/22/2024]
Abstract
The relentless drive toward miniaturization in microelectronic devices has sparked an urgent need for materials that offer both high thermal conductivity (TC) and excellent electrical insulation. Thermal interface materials (TIMs) possessing these dual attributes are highly sought after for modern electronics, but achieving such a combination has proven to be a formidable challenge. In this study, a cutting-edge solution is presented by developing boron nitride (BN) and graphite films layered silicone rubber composites with exceptional TC and electrical insulation properties. Through a carefully devised stacking-cutting method, the high orientation degree of both BN and graphite films is successfully preserved, resulting in an unprecedented through-plane TC of 23.7 Wm-1 K-1 and a remarkably low compressive modulus of 4.85 MPa. Furthermore, the exceptional properties of composites, including low thermal resistance and high resilience rate, make them a reliable and durable option for various applications. Practical tests demonstrate their outstanding heat dissipation performance, significantly reducing CPU temperatures in a computer cooling system. This research work unveils the possible upper limit of TC in BN-based TIMs and paves the way for their large-scale practical implementation, particularly in the thermal management of next-generation electronic devices.
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Affiliation(s)
- Akbar Bashir
- School of Materials Science and Engineering, HEDPS/Center for Applied Physics and Technology, Peking University, Beijing, 100871, P. R. China
- Shenzhen Key Laboratory of Polymer Science and Technology, College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518055, P. R. China
| | - Hongyu Niu
- School of Materials Science and Engineering, HEDPS/Center for Applied Physics and Technology, Peking University, Beijing, 100871, P. R. China
| | - Muhammad Maqbool
- School of Materials Science and Engineering, HEDPS/Center for Applied Physics and Technology, Peking University, Beijing, 100871, P. R. China
| | - Ali Usman
- Beijing Key Laboratory for Theory and Technology of Advanced Battery Material, School of Materials Science and Engineering, Peking University, Beijing, 100871, P. R. China
| | - Ruicong Lv
- School of Materials Science and Engineering, HEDPS/Center for Applied Physics and Technology, Peking University, Beijing, 100871, P. R. China
| | - Zubair Ashraf
- Beijing Key Laboratory for Theory and Technology of Advanced Battery Material, School of Materials Science and Engineering, Peking University, Beijing, 100871, P. R. China
| | - Ming Cheng
- Peking University Nanchang Innovation Institute, 14#1-2 Floor, High-level Talent Industrial Park, High-tech District, Nanchang, Jiangxi Province, 330224, P. R. China
- College of Engineering, Peking University, Beijing, 100871, P. R. China
| | - Shulin Bai
- School of Materials Science and Engineering, HEDPS/Center for Applied Physics and Technology, Peking University, Beijing, 100871, P. R. China
- Peking University Nanchang Innovation Institute, 14#1-2 Floor, High-level Talent Industrial Park, High-tech District, Nanchang, Jiangxi Province, 330224, P. R. China
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3
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Lu W, Deng Q, Liu M, Ding B, Xiong Z, Qiu L. Coaxial Wet Spinning of Boron Nitride Nanosheet-Based Composite Fibers with Enhanced Thermal Conductivity and Mechanical Strength. NANO-MICRO LETTERS 2023; 16:25. [PMID: 37985516 PMCID: PMC10661126 DOI: 10.1007/s40820-023-01236-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 09/30/2023] [Indexed: 11/22/2023]
Abstract
Hexagonal boron nitride nanosheets (BNNSs) exhibit remarkable thermal and dielectric properties. However, their self-assembly and alignment in macroscopic forms remain challenging due to the chemical inertness of boron nitride, thereby limiting their performance in applications such as thermal management. In this study, we present a coaxial wet spinning approach for the fabrication of BNNSs/polymer composite fibers with high nanosheet orientation. The composite fibers were prepared using a superacid-based solvent system and showed a layered structure comprising an aramid core and an aramid/BNNSs sheath. Notably, the coaxial fibers exhibited significantly higher BNNSs alignment compared to uniaxial aramid/BNNSs fibers, primarily due to the additional compressive forces exerted at the core-sheath interface during the hot drawing process. With a BNNSs loading of 60 wt%, the resulting coaxial fibers showed exceptional properties, including an ultrahigh Herman orientation parameter of 0.81, thermal conductivity of 17.2 W m-1 K-1, and tensile strength of 192.5 MPa. These results surpassed those of uniaxial fibers and previously reported BNNSs composite fibers, making them highly suitable for applications such as wearable thermal management textiles. Our findings present a promising strategy for fabricating high-performance composite fibers based on BNNSs.
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Affiliation(s)
- Wenjiang Lu
- Tsinghua Shenzhen International Graduate School (TSIGS), Tsinghua University, Shenzhen, 518055, People's Republic of China
| | - Qixuan Deng
- Tsinghua Shenzhen International Graduate School (TSIGS), Tsinghua University, Shenzhen, 518055, People's Republic of China
| | - Minsu Liu
- Monash Suzhou Research Institute (MSRI), Monash University, Suzhou, 215000, People's Republic of China
| | - Baofu Ding
- Faculty of Materials Science and Engineering/Institute of Technology for Carbon Neutrality, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, People's Republic of China
- Shenzhen Key Laboratory of Energy Materials for Carbon Neutrality, Shenzhen, 518055, People's Republic of China
| | - Zhiyuan Xiong
- School of Light Industry and Engineering, South China University of Technology, Guangzhou, 510614, People's Republic of China.
| | - Ling Qiu
- Tsinghua Shenzhen International Graduate School (TSIGS), Tsinghua University, Shenzhen, 518055, People's Republic of China.
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Keshavamurthy R, Tambrallimath V, Patil S, Rajhi AA, Duhduh AA, Khan TMY. Mechanical and Wear Studies of Boron Nitride-Reinforced Polymer Composites Developed via 3D Printing Technology. Polymers (Basel) 2023; 15:4368. [PMID: 38006092 PMCID: PMC10675459 DOI: 10.3390/polym15224368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 10/27/2023] [Accepted: 10/31/2023] [Indexed: 11/26/2023] Open
Abstract
In the realm of 3D printing, polymers serve as fundamental materials offering versatility to cater to a diverse array of final product properties and tailored to the specific needs of the creator. Polymers, as the building blocks of 3D printing, inherently possess certain mechanical and wear properties that may fall short of ideal. To address this limitation, the practice of reinforcing polymer matrices with suitable materials has become a common approach. One such reinforcement material is boron nitride (BN), lauded for its remarkable mechanical attributes. The integration of BN as a reinforcing element has yielded substantial enhancements in the properties of polylactic acid (PLA). The central objective of this research endeavor is the development of polymer composites based on PLA and fortified with boron nitride. This study undertakes the comprehensive exploration of the compatibility and synergy between BN and PLA with a keen focus on examining their resultant properties. To facilitate this, various percentages of boron nitride were incorporated into the PLA matrix, specifically at 5% and 10% by weight. The compounding process involved the blending of PLA and boron nitride followed by the creation of composite filaments measuring 1.75 mm in diameter and optimized for 3D printing. Subsequently, test specimens were meticulously fabricated in adherence with ASTM standards to evaluate the ultimate tensile strength, dimensional accuracy, wear characteristics, and surface roughness. The findings from these assessments were systematically compared to the wear properties and mechanical behavior of PLA composites reinforced with boron nitride and the unreinforced PLA material. This study serves as a foundational resource that offers insights into the feasibility and methodologies of incorporating boron nitride into PLA matrices, paving the way for enhanced polymer composite development.
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Affiliation(s)
- Ramaiah Keshavamurthy
- Department of Mechanical Engineering, Dayananda Sagar College of Engineering, Bangalore 560078, India; (R.K.); (S.P.)
| | - Vijay Tambrallimath
- Department of Automobile Engineering, Dayananda Sagar College of Engineering, Bangalore 560078, India
| | - Swetha Patil
- Department of Mechanical Engineering, Dayananda Sagar College of Engineering, Bangalore 560078, India; (R.K.); (S.P.)
| | - Ali A. Rajhi
- Department of Mechanical Engineering, College of Engineering, King Khalid University, Abha 62529, Saudi Arabia; (A.A.R.); (A.A.D.)
| | - Alaauldeen A. Duhduh
- Department of Mechanical Engineering Technology, CAIT, Jazan University, Prince Mohammed Street, P.O. Box 114, Jazan 45142, Saudi Arabia;
| | - T. M. Yunus Khan
- Department of Mechanical Engineering, College of Engineering, King Khalid University, Abha 62529, Saudi Arabia; (A.A.R.); (A.A.D.)
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5
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Pan B, Park SM, Ying WB, Yoon DK, Lee KJ. Azo-Functionalized Thermoplastic Polyurethane for Light-Driven Shape Memory Materials. Macromol Rapid Commun 2023; 44:e2200650. [PMID: 36350231 DOI: 10.1002/marc.202200650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 10/24/2022] [Indexed: 11/11/2022]
Abstract
Shape memory polymers have great potential in the fields of soft robotics, injectable medical devices, and as essential materials for advanced electronic devices. Herein, light-triggered shape-memory thermoplastic polyurethane (TPU) is reported using azido TPU grafted by the photoswitchable azo compound. The trans-cis transitions of the azobenzene on the side chain of the TPU induce the recoiling of the main chain, leading to shaping memory behavior. Under UV irradiation, cis-azo allows the oriented main chain to recoil to release residual stress and realize light-triggered shape memory behavior. The facile method proposed here for the preparation of azo-functionalized TPU can provide viable opportunities for soft robotics and smart TPU applications.
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Affiliation(s)
- Baohai Pan
- Department of Chemical Engineering and Applied Chemistry, College of Engineering, Chungnam National University, Daejeon, 34134, Republic of Korea
| | - Soon Mo Park
- Graduate School of Nanoscience and Technology, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Republic of Korea
| | - Wu Bin Ying
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang, 315201, P. R. China
| | - Dong Ki Yoon
- Graduate School of Nanoscience and Technology, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Republic of Korea.,Department of Chemistry, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Republic of Korea
| | - Kyung Jin Lee
- Department of Chemical Engineering and Applied Chemistry, College of Engineering, Chungnam National University, Daejeon, 34134, Republic of Korea
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6
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Three-dimensional network of hexagonal boron nitride filled with polydimethylsiloxane with high thermal conductivity and good insulating properties for thermal management applications. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.125440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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7
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Zhang Y, Wan X, Xu X, Teng P, Wang S. Recent progress of tree frog toe pads inspired wet adhesive materials. BIOSURFACE AND BIOTRIBOLOGY 2022. [DOI: 10.1049/bsb2.12049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Yikai Zhang
- Key Laboratory of Bio‐inspired Materials and Interface Science Technical Institute of Physics and Chemistry Chinese Academy of Sciences Beijing China
- University of Chinese Academy of Sciences Beijing China
| | - Xizi Wan
- Key Laboratory of Bio‐inspired Materials and Interface Science Technical Institute of Physics and Chemistry Chinese Academy of Sciences Beijing China
| | - Xuetao Xu
- Key Laboratory of Bio‐inspired Materials and Interface Science Technical Institute of Physics and Chemistry Chinese Academy of Sciences Beijing China
- University of Chinese Academy of Sciences Beijing China
| | - Peicheng Teng
- Key Laboratory of Bio‐inspired Materials and Interface Science Technical Institute of Physics and Chemistry Chinese Academy of Sciences Beijing China
- University of Chinese Academy of Sciences Beijing China
| | - Shutao Wang
- Key Laboratory of Bio‐inspired Materials and Interface Science Technical Institute of Physics and Chemistry Chinese Academy of Sciences Beijing China
- University of Chinese Academy of Sciences Beijing China
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