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Search for "environmental" in Full Text gives 535 result(s) in Beilstein Journal of Nanotechnology. Showing first 200.

Recent progress in magnetic applications for micro- and nanorobots

  • Ke Xu,
  • Shuang Xu and
  • Fanan Wei

Beilstein J. Nanotechnol. 2021, 12, 744–755, doi:10.3762/bjnano.12.58

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  • Micro- and nanorobots (MNRs) present challenges and prospects in the field of nanotechnology. MNRs have been a major direction of technological development and will be widely used in many fields such as biomedicine, electronic technology and sensing, and environmental remediation [1][2][3][4]. Therefore
  • avoid the reassembly of the chains. Doherty et al. [38] pointed out that superparamagnetic nanofibers could prevent the uncontrolled agglomeration of particles because the residual magnetization of this material is almost zero. They applied this technology to sensing and environmental remediation and
  • with different magnetisms with applications in, for example, energy-saving logic, sensors, environmental remediation, and data storage [52]. Chen et al. [53] studied compensated magnetic heterostructures containing ferrimagnetic CoGd alloys and antiferromagnetic IrMn layers. The terahertz emission from
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Published 19 Jul 2021

Physical constraints lead to parallel evolution of micro- and nanostructures of animal adhesive pads: a review

  • Thies H. Büscher and
  • Stanislav N. Gorb

Beilstein J. Nanotechnol. 2021, 12, 725–743, doi:10.3762/bjnano.12.57

Graphical Abstract
  • a response to specific environmental conditions and therefore exhibit convergent traits. The functional constraints that shape systems for the attachment to a surface are general requirements. Different strategies to solve similar problems often follow similar physical principles, hence, the
  • with them. Species-specific environmental surface conditions resulted in different solutions for the specific ecological surroundings of different animals. As the conditions are similar in discrete environments unrelated to the group of animals, the micro- and nanostructural adaptations of the
  • adhesive properties in their respective environments. Consequently, the convergent presence of the same AMS is primarily a result of the same environmental condition found and to establish the necessary functional principle. Functional principles Studies on different groups of insects have shown that claws
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Published 15 Jul 2021

Nanogenerator-based self-powered sensors for data collection

  • Yicheng Shao,
  • Maoliang Shen,
  • Yuankai Zhou,
  • Xin Cui,
  • Lijie Li and
  • Yan Zhang

Beilstein J. Nanotechnol. 2021, 12, 680–693, doi:10.3762/bjnano.12.54

Graphical Abstract
  • , Swansea University, Swansea, SA1 8EN, UK 10.3762/bjnano.12.54 Abstract Self-powered sensors can provide energy and environmental data for applications regarding the Internet of Things, big data, and artificial intelligence. Nanogenerators provide excellent material compatibility, which also leads to a
  • rich variety of nanogenerator-based self-powered sensors. This article reviews the development of nanogenerator-based self-powered sensors for the collection of human physiological data and external environmental data. Nanogenerator-based self-powered sensors can be designed to detect physiological
  • . Keywords: data collection; Internet of Things; nanogenerator; self-powered sensor; wearable device; Introduction Self-powered sensor systems can harvest and convert environmental energy to electricity, which enables sensor operation without external power source [1][2]. Nanogenerators (NGs) can
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Published 08 Jul 2021

Nanoporous and nonporous conjugated donor–acceptor polymer semiconductors for photocatalytic hydrogen production

  • Zhao-Qi Sheng,
  • Yu-Qin Xing,
  • Yan Chen,
  • Guang Zhang,
  • Shi-Yong Liu and
  • Long Chen

Beilstein J. Nanotechnol. 2021, 12, 607–623, doi:10.3762/bjnano.12.50

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  • predominant energy source around the world. This leads to severe environmental problems, such as the ever-worsening global warming due to the excessive emission of greenhouse gases and the pollution by poisonous gases and particles generated during the incomplete combustions of fossil fuels. In addition
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Published 30 Jun 2021

Stability and activity of platinum nanoparticles in the oxygen electroreduction reaction: is size or uniformity of primary importance?

  • Kirill O. Paperzh,
  • Anastasia A. Alekseenko,
  • Vadim A. Volochaev,
  • Ilya V. Pankov,
  • Olga A. Safronenko and
  • Vladimir E. Guterman

Beilstein J. Nanotechnol. 2021, 12, 593–606, doi:10.3762/bjnano.12.49

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  • . Keywords: durability; electrocatalysts; morphology control; oxygen reduction reaction; platinum nanoparticles; size distribution; spatial distribution; Introduction Nowadays, low-temperature proton-exchange membrane fuel cells (PEMFC) are gaining a wider application. This is due to their environmental
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Published 29 Jun 2021

Simulation of gas sensing with a triboelectric nanogenerator

  • Kaiqin Zhao,
  • Hua Gan,
  • Huan Li,
  • Ziyu Liu and
  • Zhiyuan Zhu

Beilstein J. Nanotechnol. 2021, 12, 507–516, doi:10.3762/bjnano.12.41

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  • rate of utilization [19]. Characterized by low cost, light weight, environmental safety, and high conversion efficiency under low frequency, TENGs can provide continuous power supply for wearable devices [20], medical devices, and microelectronic systems [21]. In addition, triboelectric nanogenerators
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Published 28 May 2021

Boosting of photocatalytic hydrogen evolution via chlorine doping of polymeric carbon nitride

  • Malgorzata Aleksandrzak,
  • Michalina Kijaczko,
  • Wojciech Kukulka,
  • Daria Baranowska,
  • Martyna Baca,
  • Beata Zielinska and
  • Ewa Mijowska

Beilstein J. Nanotechnol. 2021, 12, 473–484, doi:10.3762/bjnano.12.38

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  • ; doping; hydrogen evolution reaction; photocatalysis; polymeric carbon nitride; Introduction Currently, the biggest problems of civilization seem to be the global energy crisis and environmental pollution. Both of these problems are directly related to each other. The pollution of our planet is mainly
  • hydrogen [1][2][3][4], environmental remediation [5][6], decomposition of organic pollutants [7], CO2 reduction into hydrocarbon fuels [8][9][10], disinfection [11][12], and selective organic transformations [13][14]. One of the most studied catalysts is polymeric carbon nitride (PCN). This graphite-like
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Published 19 May 2021

Intracranial recording in patients with aphasia using nanomaterial-based flexible electronics: promises and challenges

  • Qingchun Wang and
  • Wai Ting Siok

Beilstein J. Nanotechnol. 2021, 12, 330–342, doi:10.3762/bjnano.12.27

Graphical Abstract
  • ratio (SNR) than other modalities, such as fMRI or scalp EEG. The SNR of ECoG is 100 times higher than that of scalp EEG due to the reduction of environmental and physiological noise such as muscle contractions or skin potentials [42][46]. ECoG electrodes are characterised by a circular plate shape
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Published 08 Apr 2021

Characterization, bio-uptake and toxicity of polymer-coated silver nanoparticles and their interaction with human peripheral blood mononuclear cells

  • Sahar Pourhoseini,
  • Reilly T. Enos,
  • Angela E. Murphy,
  • Bo Cai and
  • Jamie R. Lead

Beilstein J. Nanotechnol. 2021, 12, 282–294, doi:10.3762/bjnano.12.23

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  • States Department of Epidemiology and Biostatistics, Arnold School of Public Health, University of South Carolina, Columbia, SC, 29208, United States Center for Environmental Nanoscience and Risk, Department of Environmental Health Sciences, Arnold School of Public Health, University of South Carolina
  • can accumulate [19]. PBMCs are primary immune cells and mainly consist of monocytes and lymphocytes (B and T cells) and are responsible for the cellular host defense against foreign substances [20]. These cells secrete a variety of mediators depending on the environmental stimuli, including pro- and
  • tables. Acknowledgements We would like to thank the Clemson University Electron Microscopy Facility for STEM imaging. We are also grateful to Kandy Velázquez for helpful discussions throughout this project. Funding We thank the Smartstate Center for Environmental Nanoscience and Risk (CENR), the NSF
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Published 24 Mar 2021

Determination of elastic moduli of elastic–plastic microspherical materials using nanoindentation simulation without mechanical polishing

  • Hongzhou Li and
  • Jialian Chen

Beilstein J. Nanotechnol. 2021, 12, 213–221, doi:10.3762/bjnano.12.17

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  • Hongzhou Li Jialian Chen College of Environmental Science and Engineering, Engineering Research Center of Polymer Resources Green Recycling of Ministry of Education, Fujian Normal University, Fuzhou 350007, China 10.3762/bjnano.12.17 Abstract When using the Oliver–Pharr method, the indented
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Published 19 Feb 2021

A review on the biological effects of nanomaterials on silkworm (Bombyx mori)

  • Sandra Senyo Fometu,
  • Guohua Wu,
  • Lin Ma and
  • Joan Shine Davids

Beilstein J. Nanotechnol. 2021, 12, 190–202, doi:10.3762/bjnano.12.15

Graphical Abstract
  • Sandra Senyo Fometu Guohua Wu Lin Ma Joan Shine Davids School of Biotechnology and Sericulture Research Institute, Jiangsu University of Science and Technology, Zhenjiang 212018, PR China School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang
  • ), sensitivity, and moderate body size make Caenorhabditis elegans (nematode) [45] an ideal model organism to study environmental nanotoxicity at the nanoscale level. C. elegans was used as a model organism to evaluate the impact of an exposure to a 50–100 mg/L dose of graphite, graphite oxide nanoplatelets, and
  • studying cellular toxicity, response to new drugs [78] and environmental pollution. Silkworm (Bombyx mori) is an invertebrate insect widely used as a model organism in life sciences [79] since it has diverse mutant strains, a complete genome sequenced, and a protein database available [80][81]. There are
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Published 12 Feb 2021

Paper-based triboelectric nanogenerators and their applications: a review

  • Jing Han,
  • Nuo Xu,
  • Yuchen Liang,
  • Mei Ding,
  • Junyi Zhai,
  • Qijun Sun and
  • Zhong Lin Wang

Beilstein J. Nanotechnol. 2021, 12, 151–171, doi:10.3762/bjnano.12.12

Graphical Abstract
  • ); paper-based sensors; self-powered devices; P-TENGs; triboelectric nanogenerator; Introduction Environmental pollution is an undeniable fact in our daily lives. The air pollution caused by industrial waste generation (gases/toxins) and by the combustion of fossil fuels is getting more and more serious
  • [1][2]. Meanwhile, with the rapid growth of the Internet of Things (IoTs), the explosive growth of sensors has led to the massive use of batteries, which have also resulted in severe environmental issues in virtue of their short lifetime. In this regard, renewable energy sources, such as wind, wave
  • very complex and energy consuming. Assisted with a self-powered system, an ideal cathodic protection system is expected to be sustainably powered by using nanogenerators. This can effectively decrease the usage of traditional methods which are energy consuming and introduce serious environmental
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Published 01 Feb 2021

A review on the green and sustainable synthesis of silver nanoparticles and one-dimensional silver nanostructures

  • Sina Kaabipour and
  • Shohreh Hemmati

Beilstein J. Nanotechnol. 2021, 12, 102–136, doi:10.3762/bjnano.12.9

Graphical Abstract
  • glasses such as those in the automotive industry, there exists some difficulty in the production of thick films larger than 1 µm because of possible film cracks and shrinkage [233]. In addition to that, the film quality itself depends highly on process and environmental conditions such as temperature and
  • the synthesis of AgNPs [211] due to its strong reducing characteristic [242], however; hydrazine is known to be toxic and carcinogenic and causes severe damage to vital human organs such as the lungs [242][243]. The Environmental Protection Agency (EPA) has ranked hydrazine as a potential carcinogen
  • nanoparticles. The main purpose of such methodologies is to minimize environmental toxicity and health-related hazards [104][214][251][252][253]. In most green silver nanostructure synthesis processes, the reduction of Ag+ to Ag0 is performed either by biological species or by bio-based compounds derived from a
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Published 25 Jan 2021

The role of gold atom concentration in the formation of Cu–Au nanoparticles from the gas phase

  • Yuri Ya. Gafner,
  • Svetlana L. Gafner,
  • Darya A. Ryzkova and
  • Andrey V. Nomoev

Beilstein J. Nanotechnol. 2021, 12, 72–81, doi:10.3762/bjnano.12.6

Graphical Abstract
  • , during chemical synthesis, the preferred internal ordering and composition of the nanoparticles of the Cu–Au alloy, even at room temperature, is a very complex process that depends on the particle size and on the environmental properties [10]. Compared to chemical methods, physical methods offer a better
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Published 19 Jan 2021

ZnO and MXenes as electrode materials for supercapacitor devices

  • Ameen Uddin Ammar,
  • Ipek Deniz Yildirim,
  • Feray Bakan and
  • Emre Erdem

Beilstein J. Nanotechnol. 2021, 12, 49–57, doi:10.3762/bjnano.12.4

Graphical Abstract
  • alternatives to metal oxides are two-dimensional (2D) MXenes. Their properties include environmental sustainability, lamellar structure, high transformation efficiency, high surface hydrophilicity, and good electrical conductivity [14]. Therefore, in the following section we discuss the main properties of
  • MXenes as electrode material for their use in supercapacitor devices. MXenes as electrode material in supercapacitors Today, there is a great interest in renewable energy sources, such as solar and wind, for various reasons, such as the depletion of fossil fuels and the smaller environmental impact [15
  • , long cycling stability, as well as environmental sustainability [15][16][17][18][21][22]. Unfortunately, supercapacitors are not fully in the market due to manufacturing cost, stability, and lifetime concerns [15]. Electrodes and electrolytes are two key parameters that affect the design of the
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Published 13 Jan 2021

Atomic layer deposited films of Al2O3 on fluorine-doped tin oxide electrodes: stability and barrier properties

  • Hana Krýsová,
  • Michael Neumann-Spallart,
  • Hana Tarábková,
  • Pavel Janda,
  • Ladislav Kavan and
  • Josef Krýsa

Beilstein J. Nanotechnol. 2021, 12, 24–34, doi:10.3762/bjnano.12.2

Graphical Abstract
  • -deposited ALD Al2O3 films are typically amorphous with a poor resistance to chemical attack [11][12][13]. These films do not withstand, for example, exposition to environmental media, such as 5% NaCl and sea water, to diluted HCl and H2SO4 (pH 4) [11], to acidic (1 M H2SO4) or alkaline (1 M NaOH) solutions
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Published 05 Jan 2021

Bio-imaging with the helium-ion microscope: A review

  • Matthias Schmidt,
  • James M. Byrne and
  • Ilari J. Maasilta

Beilstein J. Nanotechnol. 2021, 12, 1–23, doi:10.3762/bjnano.12.1

Graphical Abstract
  • Matthias Schmidt James M. Byrne Ilari J. Maasilta Helmholtz-Centre for Environmental Research GmbH - UFZ, Permoserstraße 15, 04318 Leipzig, Germany School of Earth Sciences, University of Bristol, Wills Memorial Building, Queens Road, Bristol BS8 1RJ, United Kingdom Nanoscience Center, Department
  • of the strengths of HIM producing images with a large depth of field and a high level of surface detail (Figure 7). The work also directly demonstrated the superiority of HIM at high magnifications over environmental SEM, the older technology for high-resolution microscopy of uncoated insulating
  • systems. One more recent example was in a study by Sharma et al. [18] in which environmental sediment samples were imaged using HIM with findings of viruses attached to bacteria. For bacteriophage imaging, the strength of HIM lies not just in the resolution, which is higher than that of SEM, but in the
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Published 04 Jan 2021

Unravelling the interfacial interaction in mesoporous SiO2@nickel phyllosilicate/TiO2 core–shell nanostructures for photocatalytic activity

  • Bridget K. Mutuma,
  • Xiluva Mathebula,
  • Isaac Nongwe,
  • Bonakele P. Mtolo,
  • Boitumelo J. Matsoso,
  • Rudolph Erasmus,
  • Zikhona Tetana and
  • Neil J. Coville

Beilstein J. Nanotechnol. 2020, 11, 1834–1846, doi:10.3762/bjnano.11.165

Graphical Abstract
  • the core–shell nanostructure and yielded superior photocatalytic properties. Keywords: bandgap energy; core–shell; dye degradation; nickel phyllosilicate; photocatalysts; Introduction Textile dyes and organic compounds are major water pollutants, which create an environmental hazard to aquatic
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Published 09 Dec 2020

Nanocasting synthesis of BiFeO3 nanoparticles with enhanced visible-light photocatalytic activity

  • Thomas Cadenbach,
  • Maria J. Benitez,
  • A. Lucia Morales,
  • Cesar Costa Vera,
  • Luis Lascano,
  • Francisco Quiroz,
  • Alexis Debut and
  • Karla Vizuete

Beilstein J. Nanotechnol. 2020, 11, 1822–1833, doi:10.3762/bjnano.11.164

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  • currently. Studies suggest that by 2025, half of the world’s population will be living in water-stressed areas [1][2]. Consequently, water-related crises are rising around the globe due to population growth, climate change, and environmental damage, making the scenario worse than ever, especially in low
  • the complete mineralization of dyes is achieved by the generation of hydroxyl and superoxide anion radicals [10][11]. Traditional photocatalysts, such as TiO2 or ZnO, provide chemical stability and facile preparation methods [12][13]. However, their environmental benefit in large-scale industrial
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Published 07 Dec 2020

Selective detection of complex gas mixtures using point contacts: concept, method and tools

  • Alexander P. Pospelov,
  • Victor I. Belan,
  • Dmytro O. Harbuz,
  • Volodymyr L. Vakula,
  • Lyudmila V. Kamarchuk,
  • Yuliya V. Volkova and
  • Gennadii V. Kamarchuk

Beilstein J. Nanotechnol. 2020, 11, 1631–1643, doi:10.3762/bjnano.11.146

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  • study clearly demonstrate the indisputable advantages of using nanotechnology in the field of sensor technology to develop and improve environmental-monitoring tools. The level at which the components of the analyzed complex gaseous medium were identified and the sensitivity of this detection
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Published 28 Oct 2020

A self-powered, flexible ultra-thin Si/ZnO nanowire photodetector as full-spectrum optical sensor and pyroelectric nanogenerator

  • Liang Chen,
  • Jianqi Dong,
  • Miao He and
  • Xingfu Wang

Beilstein J. Nanotechnol. 2020, 11, 1623–1630, doi:10.3762/bjnano.11.145

Graphical Abstract
  • light from ultraviolet to near-infrared have attracted widespread attention in recent years for a variety of applications in industry and technology, such as optical sensing/communication, environmental monitoring, biomedicine, and the “internet of things” [1][2][3][4]. Especially full-spectrum PDs
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Published 27 Oct 2020

High-responsivity hybrid α-Ag2S/Si photodetector prepared by pulsed laser ablation in liquid

  • Raid A. Ismail,
  • Hanan A. Rawdhan and
  • Duha S. Ahmed

Beilstein J. Nanotechnol. 2020, 11, 1596–1607, doi:10.3762/bjnano.11.142

Graphical Abstract
  • that the photodetectors have good environmental stability and they do not need any encapsulation. The photodetector prepared with CTAB exhibits better stability than that prepared in the absence of CTAB. This result is probably due to the high surface activity of the nanoparticles prepared with CTAB
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Published 21 Oct 2020

Walking energy harvesting and self-powered tracking system based on triboelectric nanogenerators

  • Mingliang Yao,
  • Guangzhong Xie,
  • Qichen Gong and
  • Yuanjie Su

Beilstein J. Nanotechnol. 2020, 11, 1590–1595, doi:10.3762/bjnano.11.141

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  • transportation control, and for environmental monitoring. Experimental Surface modification of a PTFE film The surface modification of a PTFE film was performed in a similar manner as described previously [34]. Deep reactive ion etching was employed to construct PTFE nanowires aligned on the surface. Isopropyl
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Published 20 Oct 2020

Electrokinetic characterization of synthetic protein nanoparticles

  • Daniel F. Quevedo,
  • Cody J. Lentz,
  • Adriana Coll de Peña,
  • Yazmin Hernandez,
  • Nahal Habibi,
  • Rikako Miki,
  • Joerg Lahann and
  • Blanca H. Lapizco-Encinas

Beilstein J. Nanotechnol. 2020, 11, 1556–1567, doi:10.3762/bjnano.11.138

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  • , naturally involved in biological molecule targeting, and are “smart” materials that can respond to various environmental cues, such as pH value, temperature, or target binding [4]. Protein nanoparticles (PNPs) are useful for the loading of active therapeutic enzymes and show potential results to be used as
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Published 13 Oct 2020

Antimicrobial metal-based nanoparticles: a review on their synthesis, types and antimicrobial action

  • Matías Guerrero Correa,
  • Fernanda B. Martínez,
  • Cristian Patiño Vidal,
  • Camilo Streitt,
  • Juan Escrig and
  • Carol Lopez de Dicastillo

Beilstein J. Nanotechnol. 2020, 11, 1450–1469, doi:10.3762/bjnano.11.129

Graphical Abstract
  • received significant attention regarding their low environmental impact compared to other procedures [12][13]. There are different routes in which the green synthesis methods are applied through the use of microorganisms and plants in a safe, efficient, and profitable manner [14]. Different types of metal
  • ]. With the advance of nanotechnology, the number of antibiotic-resistant bacteria has also increased, including strains that are resistant to more than 100 different types of antibiotics [75]. This problem, in addition to the environmental concerns, has inspired many researchers to develop ecologically
  • their excellent properties, CuO NPs have attracted great interest from the healthcare, food packaging, medical, and environmental industries [120][134]. This metal oxide is capable of disrupting the normal function of the cell membrane, changing its permeability and the cellular respiration process [135
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Published 25 Sep 2020
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