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Search for "nanostructure" in Full Text gives 324 result(s) in Beilstein Journal of Nanotechnology. Showing first 200.

Potential of a deep eutectic solvent in silver nanoparticle fabrication for antibiotic residue detection

  • Le Hong Tho,
  • Bui Xuan Khuyen,
  • Ngoc Xuan Dat Mai and
  • Nhu Hoa Thi Tran

Beilstein J. Nanotechnol. 2024, 15, 426–434, doi:10.3762/bjnano.15.38

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  • the nanostructure and surface morphology of the nanoparticles, as well as the elemental distribution of silver on the substrate, a S4800 field-emission scanning electron microscope purchased from Hitachi, Japan, and an M4 TORNADOPlus Micro X-ray fluorescence spectrometer with a Rh tube at 30 W micro
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Published 16 Apr 2024

Modulated critical currents of spin-transfer torque-induced resistance changes in NiCu/Cu multilayered nanowires

  • Mengqi Fu,
  • Roman Hartmann,
  • Julian Braun,
  • Sergej Andreev,
  • Torsten Pietsch and
  • Elke Scheer

Beilstein J. Nanotechnol. 2024, 15, 360–366, doi:10.3762/bjnano.15.32

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  • equipment and the expert support concerning its usage and data analysis provided by the Nanostructure Laboratory at the University of Konstanz. Funding This research was funded by the A. v. Humboldt Foundation and the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) through project numbers
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Published 03 Apr 2024

Controllable physicochemical properties of WOx thin films grown under glancing angle

  • Rupam Mandal,
  • Aparajita Mandal,
  • Alapan Dutta,
  • Rengasamy Sivakumar,
  • Sanjeev Kumar Srivastava and
  • Tapobrata Som

Beilstein J. Nanotechnol. 2024, 15, 350–359, doi:10.3762/bjnano.15.31

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  • in Figure S1a and Figure S1b (Supporting Information File 1), respectively, confirming the compact growth of the columnar nanostructures originating from the GLAD geometry [32]. Here, the higher thickness is presented only to demonstrate the columnar nanostructure formation in a clearer way. Based on
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Published 02 Apr 2024

Vinorelbine-loaded multifunctional magnetic nanoparticles as anticancer drug delivery systems: synthesis, characterization, and in vitro release study

  • Zeynep Özcan and
  • Afife Binnaz Hazar Yoruç

Beilstein J. Nanotechnol. 2024, 15, 256–269, doi:10.3762/bjnano.15.24

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  • where the synthesized nanostructure was exposed to NIR light, SN38-loaded nanoparticles effectively suppressed tumor growth chemotherapeutically and photothermally [29]. This promising result highlights the potential of the PEGylation of PDA nanoparticles for advanced cancer treatment strategies
  • %, indicating the superior efficacy of our synthesis method. Moreover, our drug-loaded nanostructures exhibit a saturization magnetization of Ms = 60.40 emu/g, highlighting enhanced magnetic properties compared to the cited study. This indicates that the nanostructure can be strongly manipulated under an
  • PDA polymer was achieved through the Michael addition reaction, involving the thiol and carbonyl groups present in the SH-PEG structure [37][38]. Vinorelbine loading on PDA/Fe3O4 nanoparticles For loading vinorelbine tartrate into the nanostructure, 25 mg of PEGylation PDA/Fe3O4 nanoparticles (1 mg/mL
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Published 28 Feb 2024

Ion beam processing of DNA origami nanostructures

  • Leo Sala,
  • Agnes Zerolová,
  • Violaine Vizcaino,
  • Alain Mery,
  • Alicja Domaracka,
  • Hermann Rothard,
  • Philippe Boduch,
  • Dominik Pinkas and
  • Jaroslav Kocišek

Beilstein J. Nanotechnol. 2024, 15, 207–214, doi:10.3762/bjnano.15.20

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  • vacuum and in air, respectively. Slow- and medium-energy heavy ion irradiation results in the cutting of the nanostructures or crater formation with ion-induced damage in the 10 nm range around the primary ion track. In all these cases, the designed shape of the 2D origami nanostructure remains
  • in the present context are works on the use of DNA origami nanostructures in top-down or bottom-up nanopatterning approaches [7][8][9][10]. So far, DNA origami has been proposed only as a resist or as a platform to precisely arrange nanostructure precursors in lithography [11][12][13]. Incorporating
  • nanometer scale and the nanometric precision of DNA origami-based assembly open possibilities in more precise tuning and control of nanofabrication. Here we analyze the consequences of ion beam irradiation on 2D DNA origami nanotriangles deposited on Si as a model substrate and resulting nanostructure
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Published 12 Feb 2024

Curcumin-loaded nanostructured systems for treatment of leishmaniasis: a review

  • Douglas Dourado,
  • Thayse Silva Medeiros,
  • Éverton do Nascimento Alencar,
  • Edijane Matos Sales and
  • Fábio Rocha Formiga

Beilstein J. Nanotechnol. 2024, 15, 37–50, doi:10.3762/bjnano.15.4

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  • : 190.3 ± 3.19 and IC50 value of the curc-free: 243.56 ± 2.89 μg/mL) corroborating the improvements in the leishmanicidal response after entrapment of curc in the nanostructure. This biological performance was also observed in artemether-NLC against L.infantum. Nanostructured lipid carriers conferred an
  • IC50 values of 0.15 ± 0.08, 0.09 ± 0.07, and 0.07 ± 0.04 μM and selectivity index (SI) of 80, 255, and 314, respectively. In addition to the influence of the nanostructure, sugar promotes greater internalization of these nanoparticles due to the mannose receptors on the surface of macrophages [111
  • ]. Pentamidine-loaded nanoparticles also showed great results due to the nanostructure. Free pentamidine and Pentamidine-NPs were administered orally in an in vivo experimental model of mice infected with visceral leishmaniasis. Only the nanoencapsulated drug showed a significant reduction in the relative weight
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Published 04 Jan 2024

Nanotechnological approaches in the treatment of schistosomiasis: an overview

  • Lucas Carvalho,
  • Michelle Sarcinelli and
  • Beatriz Patrício

Beilstein J. Nanotechnol. 2024, 15, 13–25, doi:10.3762/bjnano.15.2

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  • nanoparticles, nanostructure lipid carriers, nanoemulsions, nanocrystals, solid lipid nanoparticles, polymeric nanoparticles, noisomes, and others. Percentage of administration routes used in the 65 selected articles. The routes were: oral, subcutaneous, or intramuscular. In some cases, this information was
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Published 03 Jan 2024

TEM sample preparation of lithographically patterned permalloy nanostructures on silicon nitride membranes

  • Joshua Williams,
  • Michael I. Faley,
  • Joseph Vimal Vas,
  • Peng-Han Lu and
  • Rafal E. Dunin-Borkowski

Beilstein J. Nanotechnol. 2024, 15, 1–12, doi:10.3762/bjnano.15.1

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  • submicrometer apertures were milled on SiN membranes using a focused ion beam. Furthermore, we have developed a new TEM sample preparation method, where we fabricated Py nanostructures on a bulk substrate with a SiN buffer layer and etched the substrate to create a thin SiN membrane under the Py nanostructure
  • , we initially fabricated the nanostructures on a 200 µm thick Si substrate with 100 nm thick SiN buffer layers on both sides. The buffer layers were deposited with low-pressure CVD to ensure stress-free films. The fabrication process is shown in Figure 10. First, we made the nanostructure using lift
  • -off or IBE methods on the bulk substrate. Then we protected the nanostructure with a resist and patterned AZ®5214E resist on the back side of the substrate using the image reversal technique. A window in the SiN buffer layer was prepared by ion beam etching through the aperture in the mask of AZ®5214E
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Published 02 Jan 2024

Determination of the radii of coated and uncoated silicon AFM sharp tips using a height calibration standard grating and a nonlinear regression function

  • Perawat Boonpuek and
  • Jonathan R. Felts

Beilstein J. Nanotechnol. 2023, 14, 1200–1207, doi:10.3762/bjnano.14.99

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  • measured using a tip characterizer and tip qualification or standard calibration grating. In one of those studies, the tip geometry was determined by using a well-known sharp-edged silicon structure, which included height patterns with a certified pitch on a nanostructure plate [10]. Three types of AFM
  • mode with very light loading (0.01 nN) to prevent the tips from wear. The noise effect was not considered here, because the measurement was conducted inside the hood of a MFP-3D Origin (Asylum Research) with noise filter system. Considering the geometry of the nanostructure and the scanline signal
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Published 15 Dec 2023

A combined gas-phase dissociative ionization, dissociative electron attachment and deposition study on the potential FEBID precursor [Au(CH3)2Cl]2

  • Elif Bilgilisoy,
  • Ali Kamali,
  • Thomas Xaver Gentner,
  • Gerd Ballmann,
  • Sjoerd Harder,
  • Hans-Peter Steinrück,
  • Hubertus Marbach and
  • Oddur Ingólfsson

Beilstein J. Nanotechnol. 2023, 14, 1178–1199, doi:10.3762/bjnano.14.98

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Published 06 Dec 2023

Hierarchically patterned polyurethane microgrooves featuring nanopillars or nanoholes for neurite elongation and alignment

  • Lester Uy Vinzons,
  • Guo-Chung Dong and
  • Shu-Ping Lin

Beilstein J. Nanotechnol. 2023, 14, 1157–1168, doi:10.3762/bjnano.14.96

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  • , the question arises: Can discrete structures be combined with continuous structures for possible synergistic effects? Indeed, several studies have fabricated hierarchical discrete nanostructures on continuous microstructures in order to better mimic the micro- and the nanostructure of the native nerve
  • ), indicating dominance of the nanostructure properties in this direction. In contrast, the CA values were higher and remained quite close to each other in magnitude even after O2 plasma treatment, signifying the dominance of the microgroove properties in this orientation. Despite the relatively high CA
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Published 29 Nov 2023

Density functional theory study of Au-fcc/Ge and Au-hcp/Ge interfaces

  • Olga Sikora,
  • Małgorzata Sternik,
  • Benedykt R. Jany,
  • Franciszek Krok,
  • Przemysław Piekarz and
  • Andrzej M. Oleś

Beilstein J. Nanotechnol. 2023, 14, 1093–1105, doi:10.3762/bjnano.14.90

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  • candidate for the observed nanostructure. However, a detailed analysis of the scattered intensity of atomic columns [23] suggests that the rows of Au atoms are located directly above the rows of Ge atoms. We therefore built variant D of the heterostructure, with 102 atoms (42 Ge and 60 Au), and the
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Published 15 Nov 2023

Properties of tin oxide films grown by atomic layer deposition from tin tetraiodide and ozone

  • Kristjan Kalam,
  • Peeter Ritslaid,
  • Tanel Käämbre,
  • Aile Tamm and
  • Kaupo Kukli

Beilstein J. Nanotechnol. 2023, 14, 1085–1092, doi:10.3762/bjnano.14.89

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  • have been studied from many perspectives. For example, one can mention anodes for Li-ion batteries [1], gas sensors [2], catalytic activities [3], and stable buffer [4] or base [5] layers in solar cells. More applications can be found, when SnO2 is considered as constituent of a nanostructure or a
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Published 13 Nov 2023

Exploring internal structures and properties of terpolymer fibers via real-space characterizations

  • Michael R. Roenbeck and
  • Kenneth E. Strawhecker

Beilstein J. Nanotechnol. 2023, 14, 1004–1017, doi:10.3762/bjnano.14.83

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  • through real-space mapping. Complementing these full-fiber scans, high-resolution topography and stiffness maps on smaller fiber subdomains were also obtained to study the nanostructure of Technora®. From detailed topography maps, we found that the well-aligned surface features observed on the full
  • findings provide quantitative details about the branched network of fibrils that defines the nanostructure of Technora®. Technora® vs Kevlar® K29 To further highlight the unique internal nanostructure of Technora®, we compare topography and stiffness maps of Technora® to the more widely studied Kevlar® K29
  • contextualize several aspects related to our findings. First, we describe how this real-space characterization provides new information about the Technora® fiber nanostructure. We then focus on fiber microstructures, highlighting how this technique expands upon conclusions from previous studies. Lastly, we
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Published 05 Oct 2023

Prediction of cytotoxicity of heavy metals adsorbed on nano-TiO2 with periodic table descriptors using machine learning approaches

  • Joyita Roy,
  • Souvik Pore and
  • Kunal Roy

Beilstein J. Nanotechnol. 2023, 14, 939–950, doi:10.3762/bjnano.14.77

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  • interpret and can be calculated quickly without the involvement of expert personnel. These descriptors simplify the nanostructure property calculation and determine the nanoscale interactions without much computational intervention. The use of such descriptors saves time; the descriptors are also cost
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Published 12 Sep 2023

Biomimetics on the micro- and nanoscale – The 25th anniversary of the lotus effect

  • Matthias Mail,
  • Kerstin Koch,
  • Thomas Speck,
  • William M. Megill and
  • Stanislav N. Gorb

Beilstein J. Nanotechnol. 2023, 14, 850–856, doi:10.3762/bjnano.14.69

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  • paper “The origin of black and white coloration of the Asian tiger mosquito Aedes albopictus (Diptera, Culicidae)” analysed the reflectance spectra of the white scales as well as the micro- and nanostructure of the black and white scales on the tarsi of A. albopictus. The results show that the white
  • colour is produced by the hierarchical micro- and nanostructure of the surface. The reflection of light depends on the angle of incidence. In addition to superhydrophobicity, these results suggest that the scales have another function – their hierarchical structures produce the brilliant white colour
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Published 03 Aug 2023

Investigations on the optical forces from three mainstream optical resonances in all-dielectric nanostructure arrays

  • Guangdong Wang and
  • Zhanghua Han

Beilstein J. Nanotechnol. 2023, 14, 674–682, doi:10.3762/bjnano.14.53

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  • within the confined fields of three optical resonances supported by all-dielectric nanostructure arrays, including toroidal dipole (TD), anapoles, and quasi-bound states in continuum (quasi-BIC) resonances. By elaborately designing the geometry of a slotted-disk array, three different resonances can be
  • large contrast in the optical forces generated with these resonances is attributed to a higher electromagnetic field enhancement provided by the quasi-BIC. These results suggest that the quasi-BIC resonance is preferred when one employs all-dielectric nanostructure arrays for the trapping and
  • , these resonances by the spheres are beyond the spectrum of our interest. The presence of PS spheres only leads to some spectral shift of the resonances supported by the silicon nanostructure, which have been fully considered. Using the Maxwell stress tensor (MST) technique [17], the generated optical
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Published 02 Jun 2023

Metal-organic framework-based nanomaterials as opto-electrochemical sensors for the detection of antibiotics and hormones: A review

  • Akeem Adeyemi Oladipo,
  • Saba Derakhshan Oskouei and
  • Mustafa Gazi

Beilstein J. Nanotechnol. 2023, 14, 631–673, doi:10.3762/bjnano.14.52

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  • ), impurity-induced defects, or it may exist in pure crystals or molecules. According to the manner of the substance excitation, several distinct forms of luminescence are differentiated, as shown in Figure 6. A molecule, nanostructure, or atom must be able to absorb light radiation, resulting in electronic
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Published 01 Jun 2023

Thermal transport in kinked nanowires through simulation

  • Alexander N. Robillard,
  • Graham W. Gibson and
  • Ralf Meyer

Beilstein J. Nanotechnol. 2023, 14, 586–602, doi:10.3762/bjnano.14.49

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  • , the conductance is not monotonically decreasing. To explain the increase in conductance for angles beyond 20°, we must consider that the thermal transport in a nanostructure may differ when travelling along orientations of a crystalline lattice different from the [100] direction. Though the thermal
  • conductivity of a theoretical crystal with cubic symmetry is isotropic (and investigations of perfectly cubic systems have found such [37]), because of the limited dimensions of a nanostructure along certain crystal axes the contribution to thermal transport in the lattice can be anisotropic. In addition
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Published 15 May 2023

Observation of multiple bulk bound states in the continuum modes in a photonic crystal cavity

  • Rui Chen,
  • Yi Zheng,
  • Xingyu Huang,
  • Qiaoling Lin,
  • Chaochao Ye,
  • Meng Xiong,
  • Martijn Wubs,
  • Yungui Ma,
  • Minhao Pu and
  • Sanshui Xiao

Beilstein J. Nanotechnol. 2023, 14, 544–551, doi:10.3762/bjnano.14.45

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  • . Such a periodic nanostructure array supports a BIC around 1.56 μm and has an infinite Q factor at the Г point, as shown in Figure 1b and Figure 1c, respectively. The electric field (E field) distribution of the eigenmode is shown in the inset of Figure 1b, and the white arrows indicate the in-plane E
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Published 27 Apr 2023

The origin of black and white coloration of the Asian tiger mosquito Aedes albopictus (Diptera: Culicidae)

  • Manuela Rebora,
  • Gianandrea Salerno,
  • Silvana Piersanti,
  • Alexander Kovalev and
  • Stanislav N. Gorb

Beilstein J. Nanotechnol. 2023, 14, 496–508, doi:10.3762/bjnano.14.41

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  • ; insects; nanostructure; scales; structural white; Introduction Body color (coloration) and light signals (bioluminescence) have a fundamental role in insect inter- and intra-specific visual communication allowing for species recognition, mating, prey capture, and predator avoidance [1]. Insect colours
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Published 17 Apr 2023

Conjugated photothermal materials and structure design for solar steam generation

  • Chia-Yang Lin and
  • Tsuyoshi Michinobu

Beilstein J. Nanotechnol. 2023, 14, 454–466, doi:10.3762/bjnano.14.36

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  • on conjugated organic materials. Conjugated organic materials are processed into fibers, membranes, and porous structures. Therefore, nanostructure design based on the concept of nanoarchitectonics is crucial to achieve high SSG efficiency. We discuss the considerations for designing SSG absorbers
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Published 04 Apr 2023

Evaluation of electrosynthesized reduced graphene oxide–Ni/Fe/Co-based (oxy)hydroxide catalysts towards the oxygen evolution reaction

  • Karolina Cysewska,
  • Marcin Łapiński,
  • Marcin Zając,
  • Jakub Karczewski,
  • Piotr Jasiński and
  • Sebastian Molin

Beilstein J. Nanotechnol. 2023, 14, 420–433, doi:10.3762/bjnano.14.34

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  • nanostructure of CoNiFe and some agglomerations of GO microflakes, which was not the case for GO and CoNiFe alone (Figure 1b and Figure 1d, respectively). A difference was observed for NiFe-GO, that is, the morphology of GO and NiFe remained virtually the same after the combination of the catalysts. Another
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Published 29 Mar 2023

Plasmonic nanotechnology for photothermal applications – an evaluation

  • A. R. Indhu,
  • L. Keerthana and
  • Gnanaprakash Dharmalingam

Beilstein J. Nanotechnol. 2023, 14, 380–419, doi:10.3762/bjnano.14.33

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  • controlled due to extremely localised heating [38]. For increasing the spatial distribution of the generated heat, compared to an individual nanoparticle, nanoparticle assemblies and/or increased interfaces (by including constructions such as holes and other scattering centres) within a single nanostructure
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Published 27 Mar 2023

Bismuth-based nanostructured photocatalysts for the remediation of antibiotics and organic dyes

  • Akeem Adeyemi Oladipo and
  • Faisal Suleiman Mustafa

Beilstein J. Nanotechnol. 2023, 14, 291–321, doi:10.3762/bjnano.14.26

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  • promising green and sustainable wastewater treatment method for a cleaner environment. Due to their narrow bandgaps, distinctive layered structures, plasmonic, piezoelectric and ferroelectric properties, and desirable physicochemical features, bismuth-based nanostructure photocatalysts have emerged as one
  • static electric field, which effectively aids in the separation and transfer of photogenerated carriers. Bulk Bi and Bi-based nanostructure morphologies can also be easily altered using a variety of synthesis techniques due to their unique electrical and optical properties, which are directly tied to the
  • plasmonic and photocatalytic properties. The typical and most recently applied bismuth-based nanostructure photocatalysts are depicted in Figure 2. Structural, optoelectronic, and magnetic properties Bismuth's peculiar optical, electronic, and more recently discovered photocatalytic and plasmonic properties
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Published 03 Mar 2023
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