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Xiang Z, Wang H, Zhao P, Fa X, Wan J, Wang Y, Xu C, Yao S, Zhao W, Zhang H, Han M. Hard Magnetic Graphene Nanocomposite for Multimodal, Reconfigurable Soft Electronics. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2308575. [PMID: 38153331 DOI: 10.1002/adma.202308575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 11/20/2023] [Indexed: 12/29/2023]
Abstract
Soft electronics provide effective means for continuous monitoring of a diverse set of biophysical and biochemical signals from the human body. However, the sensitivities, functions, spatial distributions, and many other features of such sensors remain fixed after deployment and cannot be adjusted on demand. Here, laser-induced porous graphene is exploited as the sensing material, and dope it with permanent magnetic particles to create hard magnetic graphene nanocomposite (HMGN) that can self-assemble onto a flexible carrying substrate through magnetic force, in a reversible and reconfigurable manner. A set of soft electronics in HMGN exhibits enhanced performances in the measurements of electrophysiological signals, temperature, and concentrations of metabolites. All these flexible HMGN sensors can adhere to a carrying substrate at any position and in any spatial arrangement, to allow for wearable sensing with customizable sensitivity, modality, and spatial coverage. The HMGN represents a promising material for constructing soft electronics that can be reconfigured for various applications.
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Affiliation(s)
- Zehua Xiang
- National Key Laboratory of Science and Technology on Micro/Nano Fabrication, Department of Biomedical Engineering, College of Future Technology, Peking University, Beijing, 100871, China
- Beijing Advanced Innovation Center for Integrated Circuits, School of Integrated Circuits, Peking University, Beijing, 100871, China
| | - Haobin Wang
- Beijing Advanced Innovation Center for Integrated Circuits, School of Integrated Circuits, Peking University, Beijing, 100871, China
| | - Pengcheng Zhao
- Beijing Advanced Innovation Center for Integrated Circuits, School of Integrated Circuits, Peking University, Beijing, 100871, China
| | - Xinying Fa
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Ji Wan
- National Key Laboratory of Science and Technology on Micro/Nano Fabrication, Department of Biomedical Engineering, College of Future Technology, Peking University, Beijing, 100871, China
- Beijing Advanced Innovation Center for Integrated Circuits, School of Integrated Circuits, Peking University, Beijing, 100871, China
| | - Yaozheng Wang
- Beijing Advanced Innovation Center for Integrated Circuits, School of Integrated Circuits, Peking University, Beijing, 100871, China
| | - Chen Xu
- National Key Laboratory of Science and Technology on Micro/Nano Fabrication, Department of Biomedical Engineering, College of Future Technology, Peking University, Beijing, 100871, China
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, 100871, China
| | - Shenglian Yao
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Wei Zhao
- Department of Cardiology and Institute of Vascular Medicine, Peking University Third Hospital, NHC Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, 100191, China
| | - Haixia Zhang
- Beijing Advanced Innovation Center for Integrated Circuits, School of Integrated Circuits, Peking University, Beijing, 100871, China
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, 100871, China
| | - Mengdi Han
- National Key Laboratory of Science and Technology on Micro/Nano Fabrication, Department of Biomedical Engineering, College of Future Technology, Peking University, Beijing, 100871, China
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de la Parra S, González V, Solórzano Vives P, Curiel-Alegre S, Velasco-Arroyo B, Rad C, Barros R, Tamayo-Ramos JA, Rumbo C. Comparative toxicological assessment of three soils polluted with different levels of hydrocarbons and heavy metals using in vitro and in vivo approaches. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 315:120472. [PMID: 36272604 DOI: 10.1016/j.envpol.2022.120472] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 09/30/2022] [Accepted: 10/15/2022] [Indexed: 06/16/2023]
Abstract
The biological effects induced by the pollutants present in soils, together with the chemical and physical characterizations, are good indicators to provide a general overview of their quality. However, the existence of studies where the toxicity associated to soils contaminated with mixtures of pollutants applying both in vitro and in vivo models are scarce. In this work, three soils (namely, Soil 001, Soil 002 and Soil 013) polluted with different concentrations of hydrocarbons and heavy metals were evaluated using different organisms representative of human (HepG2 human cell line) and environmental exposure (the yeast Saccharomyces cerevisiae, the Gram-negative bacterium Pseudomonas putida and, for the in vivo evaluation, the annelid Enchytraeus crypticus). In vitro assays showed that the soluble fraction of the Soil 001, which presented the highest levels of heavy metals, represented a great impact in the viability of the HepG2 cells and S. cerevisiae, while organic extracts from Soils 002 and 013 caused a slight decrease in the viability of HepG2 cells. In addition, in vivo experiments showed that Soils 001 and 013 affected the survival and the reproduction of E. crypticus. Altogether, these results provide a general overview of the potential hazards associated to three specific contaminated sites in a variety of organisms, showing how different concentrations of similar pollutants affect them, and highlights the relevance of testing both organic and soluble extracts when in vitro safety assays of soils are performed.
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Affiliation(s)
- Sandra de la Parra
- International Research Center in Critical Raw Materials for Advanced Industrial Technologies-ICCRAM, Universidad de Burgos, Plaza Misael Bañuelos s/n, 09001, Burgos, Spain
| | - Verónica González
- LEITAT Technological Center, c/Pallars 179-185, 08005, Barcelona, Spain
| | | | - Sandra Curiel-Alegre
- International Research Center in Critical Raw Materials for Advanced Industrial Technologies-ICCRAM, Universidad de Burgos, Plaza Misael Bañuelos s/n, 09001, Burgos, Spain; Research Group in Composting (UBUCOMP). Universidad de Burgos, Faculty of Sciences. Plaza Misael Bañuelos s/n. 09001, Burgos, Spain
| | - Blanca Velasco-Arroyo
- International Research Center in Critical Raw Materials for Advanced Industrial Technologies-ICCRAM, Universidad de Burgos, Plaza Misael Bañuelos s/n, 09001, Burgos, Spain
| | - Carlos Rad
- Research Group in Composting (UBUCOMP). Universidad de Burgos, Faculty of Sciences. Plaza Misael Bañuelos s/n. 09001, Burgos, Spain
| | - Rocío Barros
- International Research Center in Critical Raw Materials for Advanced Industrial Technologies-ICCRAM, Universidad de Burgos, Plaza Misael Bañuelos s/n, 09001, Burgos, Spain
| | - Juan Antonio Tamayo-Ramos
- International Research Center in Critical Raw Materials for Advanced Industrial Technologies-ICCRAM, Universidad de Burgos, Plaza Misael Bañuelos s/n, 09001, Burgos, Spain
| | - Carlos Rumbo
- International Research Center in Critical Raw Materials for Advanced Industrial Technologies-ICCRAM, Universidad de Burgos, Plaza Misael Bañuelos s/n, 09001, Burgos, Spain.
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Ahmad J, Wahab R, Siddiqui MA, Farshori NN, Saquib Q, Ahmad N, Al-Khedhairy AA. Neodymium oxide nanostructures and their cytotoxic evaluation in human cancer cells. J Trace Elem Med Biol 2022; 73:127029. [PMID: 35785590 DOI: 10.1016/j.jtemb.2022.127029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 06/15/2022] [Accepted: 06/22/2022] [Indexed: 11/25/2022]
Abstract
Neodymium oxide exhibits a unique property, which facilitates and largely utilized as an industrial applications. A number of cytotoxic study is available but very limited information is available to understand their biological activity with neodymium oxide at a very low conc- entration of the material. The present work was designed to understand the cytotoxicity against liver (HepG-2) and lung (A-549) cancer cells. Initially, Neodymium oxides (Nd2O3) were prepared and characterized with various instruments. The crystallinity and morphology of Nd2O3 powder were examined with instruments such as X-Ray Diffraction (XRD), scanning electron microscope (SEM), Transmission electron microscopy (TEM), Energy Dispersive X-Ray Analysis (EDX) respectively, revealed the size of curved nanostructure are ~140 ± 2 in diameter whereas length goes upto ~700 nm with elemental composition. The cytotoxicity study was conducted with MTT, NRU assay with genotoxicity study via ROS, cell cycle and qPCR analysis. The cells cytotoxic assessment were analysed via MTT(3-(4,5-Dimethylthiazol-2-yl)- 2,5-Diphenyl tetra zolium Bromide) and Neutral Red Uptake (NRU) assay with neodymium oxide (Nd2O3), which indicates the reduction in cell viability. Additionally, cell-cycle analysis showed an increase in the apoptotic peak after a 24-h. Quantitative real-time PCR (RT-PCR) data revealed that apoptotic genes such as p53, bax, and caspase-3 were up regulated, whereas bcl-2, an anti-apoptotic gene, was down regulated; therefore, apoptosis was mediated through ROS and genotoxicity pathways. The experiments of cytotoxicity was tested and concludes that the Nd2O3 express a moderate and dose dependent effect on cancer cells. The ROS, cell cycle analysis and qPCR showed that Nd2O3 exhibit the capability to cells death via ROS generation and genotoxicity study pathways.
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Affiliation(s)
- Javed Ahmad
- Chair for DNA Research, Zoology Department, College of Sciences, King Saud University, Riyadh 11451, Saudi Arabia.
| | - Rizwan Wahab
- Chair for DNA Research, Zoology Department, College of Sciences, King Saud University, Riyadh 11451, Saudi Arabia; Zoology Department, College of Sciences, King Saud University, Riyadh 11451, Saudi Arabia
| | - Maqsood A Siddiqui
- Chair for DNA Research, Zoology Department, College of Sciences, King Saud University, Riyadh 11451, Saudi Arabia
| | - Nida Nayyar Farshori
- Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh 11495, Saudi Arabia
| | - Quaiser Saquib
- Chair for DNA Research, Zoology Department, College of Sciences, King Saud University, Riyadh 11451, Saudi Arabia; Zoology Department, College of Sciences, King Saud University, Riyadh 11451, Saudi Arabia
| | - Naushad Ahmad
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Abdulaziz A Al-Khedhairy
- Chair for DNA Research, Zoology Department, College of Sciences, King Saud University, Riyadh 11451, Saudi Arabia; Zoology Department, College of Sciences, King Saud University, Riyadh 11451, Saudi Arabia
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Rumbo C, Bianchin A, Locci AM, Barros R, Martel Martín S, Tamayo-Ramos JA. Toxicological assessment of nanocrystalline metal alloys with potential applications in the aeronautical field. Sci Rep 2022; 12:1523. [PMID: 35087098 PMCID: PMC8795356 DOI: 10.1038/s41598-022-05406-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 01/11/2022] [Indexed: 12/02/2022] Open
Abstract
The development of new candidate alloys with outstanding characteristics for their use in the aeronautical field is one of the main priorities for the sector. In this context, nanocrystaline (nc) alloys are considered relevant materials due to their special features, such as their exceptional physical and mechanical properties. However, another important point that needs to be considered with newly developed alloys is the potential toxicological impact that these materials may have in humans and other living organisms. The aim of this work was to perform a preliminary toxicological evaluation of three nc metal alloys (WCu, WAl and TiAl) in powder form produced by mechanical alloying, applying different in vitro assays, including a mix of W-Cu powders with standard grain size in the experiments to stablish comparisons. The effects of the direct exposure to powder suspensions and/or to their derived leachates were analysed in three model organisms representative of human and environmental exposures (the adenocarcinomic human alveolar basal epithelial cell line A549, the yeast Saccharomyces cerevisiae and the Gram negative bacterium Vibrio fischeri). Altogether, the results obtained provide new insights about the potential harmful effects of the selected nc alloys, showing that, from a toxicological perspective, nc TiAl is the safest candidate in the model organisms and conditions tested.
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Affiliation(s)
- Carlos Rumbo
- International Research Center in Critical Raw Materials-ICCRAM, Universidad de Burgos, Plaza Misael Bañuelos s/n, 09001, Burgos, Spain.
| | - Alvise Bianchin
- MBN Nanomaterialia S.P.A, 31050, Vascon Di Carbonera, TV, Italy
| | - Antonio Mario Locci
- Dipartimento Di Ingegneria Meccanica, Chimica, e dei Materiali, Università Degli Studi Di Cagliari, via Marengo 2, 09123, Cagliari, Italy
| | - Rocío Barros
- International Research Center in Critical Raw Materials-ICCRAM, Universidad de Burgos, Plaza Misael Bañuelos s/n, 09001, Burgos, Spain
| | - Sonia Martel Martín
- International Research Center in Critical Raw Materials-ICCRAM, Universidad de Burgos, Plaza Misael Bañuelos s/n, 09001, Burgos, Spain
| | - Juan Antonio Tamayo-Ramos
- International Research Center in Critical Raw Materials-ICCRAM, Universidad de Burgos, Plaza Misael Bañuelos s/n, 09001, Burgos, Spain.
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