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Search for "field emission" in Full Text gives 286 result(s) in Beilstein Journal of Nanotechnology. Showing first 200.

Synthesis of a multicomponent cellulose-based adsorbent for tetracycline removal from aquaculture water

  • Uyen Bao Tran,
  • Ngoc Thanh Vo-Tran,
  • Khai The Truong,
  • Dat Anh Nguyen,
  • Quang Nhat Tran,
  • Huu-Quang Nguyen,
  • Jaebeom Lee and
  • Hai Son Truong-Lam

Beilstein J. Nanotechnol. 2025, 16, 728–739, doi:10.3762/bjnano.16.56

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  • will be applied in the synthesis of an adsorbent for TC removal from water. Material characterization FE-SEM and FTIR results Figure 2 presents comparative field-emission SEM (FE-SEM) images and FTIR spectra of commercial CMC and PGC. Notably, the FE-SEM analysis of PGC (Figure 2d–f) reveals
  • Field-emission SEM analysis was performed using a Merlin Compact instrument (Carl Zeiss, Jena, Germany) with an SE2 detector. The sample was mounted on a clean silicon wafer and coated with a nanoscale platinum layer using an ion sputter coater (Q150T Plus, Quorum Technologies, UK). EDX analysis was
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Published 27 May 2025

Feasibility analysis of carbon nanofiber synthesis and morphology control using a LPG premixed flame

  • Iftikhar Rahman Bishal,
  • Muhammad Hilmi Ibrahim,
  • Norikhwan Hamzah,
  • Mohd Zamri Mohd Yusop,
  • Faizuan Bin Abdullah,
  • I Putu Tedy Indrayana and
  • Mohd Fairus Mohd Yasin

Beilstein J. Nanotechnol. 2025, 16, 581–590, doi:10.3762/bjnano.16.45

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  • placement of the thermocouple within the flame, a two-axis positioning system was employed with an Arduino-based control unit. The positioning system has 1 mm accuracy with x- and y-axis traverse ranges of 100 and 200 mm, respectively. The grown CNFs were characterized by field-emission scanning electron
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Published 23 Apr 2025

Electron beam-based direct writing of nanostructures using a palladium β-ketoesterate complex

  • Chinmai Sai Jureddy,
  • Krzysztof Maćkosz,
  • Aleksandra Butrymowicz-Kubiak,
  • Iwona B. Szymańska,
  • Patrik Hoffmann and
  • Ivo Utke

Beilstein J. Nanotechnol. 2025, 16, 530–539, doi:10.3762/bjnano.16.41

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  • conducted with a field-emission gun and an electron energy of 1 keV. This lower electron energy increases the dissociation cross section and leads to greater heating of the deposit due to more energy deposited per unit trajectory length and, consequently, the small excitation volume where all the beam
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Published 15 Apr 2025

Performance optimization of a microwave-coupled plasma-based ultralow-energy ECR ion source for silicon nanostructuring

  • Joy Mukherjee,
  • Safiul Alam Mollick,
  • Tanmoy Basu and
  • Tapobrata Som

Beilstein J. Nanotechnol. 2025, 16, 484–494, doi:10.3762/bjnano.16.37

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  • nanopatterning and nanoscale functionalization have garnered significant interest, owing to their broad applications in DNA origami [10], tuning of wettability [11] and electrical and magnetic anisotropy [12][13], isolated dot formation [1], nanoscale plasmonic arrays [14], and field emission [15]. Thus, ion
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Published 31 Mar 2025

Quantification of lead through rod-shaped silver-doped zinc oxide nanoparticles using an electrochemical approach

  • Ravinder Lamba,
  • Gaurav Bhanjana,
  • Neeraj Dilbaghi,
  • Vivek Gupta and
  • Sandeep Kumar

Beilstein J. Nanotechnol. 2025, 16, 422–434, doi:10.3762/bjnano.16.33

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  • Scherrer method. This difference is proportional to the strain value [17]. Field-emission scanning electron microscopy of Ag@ZnO nanorods The general morphological characteristics of the as-obtained nanorods were analyzed by electron microscopy. Figure 2a depicts the typical field-emission scanning
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Published 26 Mar 2025

Pulsed laser in liquid grafting of gold nanoparticle–carbon support composites

  • Madeleine K. Wilsey,
  • Teona Taseska,
  • Qishen Lyu,
  • Connor P. Cox and
  • Astrid M. Müller

Beilstein J. Nanotechnol. 2025, 16, 349–361, doi:10.3762/bjnano.16.26

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  • scanning electron microscope with a Schottky field-emission emitter was operated at 20.00 kV with a working distance of 4.9 mm. Energy-dispersive X-ray (EDX) spectroscopy data were collected using an SEM-integrated EDAX Octane elect plus spectrometer with a with silicon drift detector. Double sided carbon
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Published 07 Mar 2025

Tailoring of physical properties of RF-sputtered ZnTe films: role of substrate temperature

  • Kafi Devi,
  • Usha Rani,
  • Arun Kumar,
  • Divya Gupta and
  • Sanjeev Aggarwal

Beilstein J. Nanotechnol. 2025, 16, 333–348, doi:10.3762/bjnano.16.25

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  • obtained micrographs were then analysed regarding various statistical parameters such as roughness, skewness, kurtosis, and power spectral density using the NanoScope Analysis software. Surface morphology and composition of the films were studied by field-emission scanning electron microscopy attached with
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Published 05 Mar 2025

Graphene oxide–chloroquine conjugate induces DNA damage in A549 lung cancer cells through autophagy modulation

  • Braham Dutt Arya,
  • Sandeep Mittal,
  • Prachi Joshi,
  • Alok Kumar Pandey,
  • Jaime E. Ramirez-Vick,
  • Govind Gupta and
  • Surinder P. Singh

Beilstein J. Nanotechnol. 2025, 16, 316–332, doi:10.3762/bjnano.16.24

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  • -resolution transmission electron microscope (Technai G2 F30 STWIN, Japan), field emission scanning electron microscope (FEI, Quanta FEG 450, USA), and atomic force microscope (Nanoscope, Veeco V, USA) [28][29][30]. Cell culture A549 cells from the American Type Culture Collection (ATCC, Manassas, VA, USA
  • nanoconjugates. The observed data with relative % are shown in Supporting Information File 1, Table S1. The morphological analysis of GO was carried out using field-emission scanning electron microscopy (FESEM) and high-resolution transmission electron microscopy (HRTEM). In Supporting Information File 1, Figure
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Published 03 Mar 2025

Fabrication and evaluation of BerNPs regarding the growth and development of Streptococcus mutans

  • Tuyen Huu Nguyen,
  • Hong Thanh Pham,
  • Kieu Kim Thanh Nguyen,
  • Loan Hong Ngo,
  • Anh Ngoc Tuan Mai,
  • Thu Hoang Anh Lam,
  • Ngan Thi Kim Phan,
  • Dung Tien Pham,
  • Duong Thuy Hoang,
  • Thuc Dong Nguyen and
  • Lien Thi Xuan Truong

Beilstein J. Nanotechnol. 2025, 16, 308–315, doi:10.3762/bjnano.16.23

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  • prepared using a wet-milling method with zirconium balls to enhance bioavailability and expand potential applications. The particle size and physicochemical properties of the BerNPs were analyzed using field-emission scanning electron microscopy (FE-SEM), UV–vis spectroscopy, X-ray diffraction, and Fourier
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Published 27 Feb 2025

Enhancing mechanical properties of chitosan/PVA electrospun nanofibers: a comprehensive review

  • Nur Areisman Mohd Salleh,
  • Amalina Muhammad Afifi,
  • Fathiah Mohamed Zuki and
  • Hanna Sofia SalehHudin

Beilstein J. Nanotechnol. 2025, 16, 286–307, doi:10.3762/bjnano.16.22

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  • electron microscopy (SEM) and field-emission scanning electron microscopy (FESEM) are more commonly used to analyze the fiber diameter, distribution, and overall surface morphology [144]. Microscopic images obtained from these techniques help to identify defects such as beading or non-uniformity in fibers
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Published 26 Feb 2025

A review of metal-organic frameworks and polymers in mixed matrix membranes for CO2 capture

  • Charlotte Skjold Qvist Christensen,
  • Nicholas Hansen,
  • Mahboubeh Motadayen,
  • Nina Lock,
  • Martin Lahn Henriksen and
  • Jonathan Quinson

Beilstein J. Nanotechnol. 2025, 16, 155–186, doi:10.3762/bjnano.16.14

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  •  7d. For instance, in a study by Carja et al. [128], PIM-1 was functionalized with amidoxime groups to induce superior adhesion to UiO-66 in flat sheet MMMs, drastically reducing defect formation as predicted by molecular simulations and confirmed by field-emission scanning electron microscopy and
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Published 12 Feb 2025

Fabrication of hafnium-based nanoparticles and nanostructures using picosecond laser ablation

  • Abhishek Das,
  • Mangababu Akkanaboina,
  • Jagannath Rathod,
  • R. Sai Prasad Goud,
  • Kanaka Ravi Kumar,
  • Raghu C. Reddy,
  • Ratheesh Ravendran,
  • Katia Vutova,
  • S. V. S. Nageswara Rao and
  • Venugopal Rao Soma

Beilstein J. Nanotechnol. 2024, 15, 1639–1653, doi:10.3762/bjnano.15.129

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  • morphology was analysed using field-emission scanning electron microscopy (FESEM); the composition was determined by EDX attached to the FESEM (Carl Zeiss Smart SEM ULTRA 55). Reflectivity was investigated using a UV–vis–NIR spectrometer (PerkinElmer Lambda 750). For photoluminescence (PL) measurements, a
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Published 18 Dec 2024

Electrochemical nanostructured CuBTC/FeBTC MOF composite sensor for enrofloxacin detection

  • Thi Kim Ngan Nguyen,
  • Tien Dat Doan,
  • Huy Hieu Luu,
  • Hoang Anh Nguyen,
  • Thi Thu Ha Vu,
  • Quang Hai Tran,
  • Ha Tran Nguyen,
  • Thanh Binh Dang,
  • Thi Hai Yen Pham and
  • Mai Ha Hoang

Beilstein J. Nanotechnol. 2024, 15, 1522–1535, doi:10.3762/bjnano.15.120

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  • electrode, an Ag/AgCl/saturated KCl reference electrode, and a carbon paste electrode (CPE) or MOF-modified electrodes as working electrodes. Physical and chemical properties of MOFs were characterized by using field-emission scanning electron microscopy (FESEM, Hitachi S-4800, Japan), energy-dispersive X
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Published 28 Nov 2024

New design of operational MEMS bridges for measurements of properties of FEBID-based nanostructures

  • Bartosz Pruchnik,
  • Krzysztof Kwoka,
  • Ewelina Gacka,
  • Dominik Badura,
  • Piotr Kunicki,
  • Andrzej Sierakowski,
  • Paweł Janus,
  • Tomasz Piasecki and
  • Teodor Gotszalk

Beilstein J. Nanotechnol. 2024, 15, 1273–1282, doi:10.3762/bjnano.15.103

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  • resolution of actuation is limited by the background noise of 200 fm/Hz0.5), which is a promising feature for future applications of opMEMS as an experimental platform, for example, for studying quantum phenomena such as electron tunnelling or field emission, which are exponentially dependent on the distance
  • effect using operational microelectromechanical systems” (Grant No. 2020/37/B/ST7/03792) and PRELUDIUM-21 grant “Nanometrology of field emission phenomena from electron beam deposited nanowires operating as nano- and picodeflection sensors – FEmet” (Grant No. 2022/45/N/ST7/03049) with help from the
  • surface or reduced capacitance) are brought by volumetric, self-standing electronic nanostructures, which provide an experimental basis for their own properties and can serve as building blocks for nanoscale devices, in which phenomena such as giant piezoresistivity, single-electron tunnelling, or field
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Published 23 Oct 2024

Functional morphology of cleaning devices in the damselfly Ischnura elegans (Odonata, Coenagrionidae)

  • Silvana Piersanti,
  • Gianandrea Salerno,
  • Wencke Krings,
  • Stanislav Gorb and
  • Manuela Rebora

Beilstein J. Nanotechnol. 2024, 15, 1260–1272, doi:10.3762/bjnano.15.102

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  • on the grooming structures. The specimens were deposited on aluminum stubs using double-sided adhesive tape. Before the analysis, the samples were sputter-coated with a thin layer of gold (8 nm) using a Q150 T ES (Quorum, Laughton, UK) for 30 s. The samples were then analyzed in a field-emission
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Published 16 Oct 2024

Photocatalytic methane oxidation over a TiO2/SiNWs p–n junction catalyst at room temperature

  • Qui Thanh Hoai Ta,
  • Luan Minh Nguyen,
  • Ngoc Hoi Nguyen,
  • Phan Khanh Thinh Nguyen and
  • Dai Hai Nguyen

Beilstein J. Nanotechnol. 2024, 15, 1132–1141, doi:10.3762/bjnano.15.92

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  • properties of as-synthesized samples were analyzed using an X-ray diffraction system (XRD, Rigaku, SmartLab) with a 2θ range of 20–80° and a field-emission scanning electron microscope (FE-SEM, Hitachi, S-4700). The absorption properties of the thin films were analyzed using a diffuse reflectance UV–vis
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Published 02 Sep 2024

Direct electron beam writing of silver using a β-diketonate precursor: first insights

  • Katja Höflich,
  • Krzysztof Maćkosz,
  • Chinmai S. Jureddy,
  • Aleksei Tsarapkin and
  • Ivo Utke

Beilstein J. Nanotechnol. 2024, 15, 1117–1124, doi:10.3762/bjnano.15.90

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  • in a field-emission Hitachi S-4800 SEM. The chemical composition of the deposits was determined using energy-dispersive X-ray (EDX) spectroscopy using a Hitachi S-4800 SEM equipped with an EDAX Genesis 4000 detector and a Tescan Mira dual-beam instrument with an EDAX EDX system. To prove for
  • compatibility of the tested precursor with field-emission microscopes and commercial gas injection systems, further deposition experiments were performed using a dual-beam instrument Zeiss Crossbeam 340 KMAT equipped with a commercial integrated GIS from Kleindiek based on the MM3A-EM micromanipulator platform
  • the lowest local temperature at the sample surface. In a next step, the usability of (hfac)AgPMe3 with a commercial gas injection system and a field-emission gun was assessed. In contrast to the used thermal emitter, this allows for electron beam spot sizes in the single-digit nanometer range and an
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Published 26 Aug 2024

Effect of wavelength and liquid on formation of Ag, Au, Ag/Au nanoparticles via picosecond laser ablation and SERS-based detection of DMMP

  • Sree Satya Bharati Moram,
  • Chandu Byram and
  • Venugopal Rao Soma

Beilstein J. Nanotechnol. 2024, 15, 1054–1069, doi:10.3762/bjnano.15.86

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  • distribution of NPs on a FP was analyzed using the INCA software with a field-emission scanning electron microscope (FESEM, Carl Zeiss Ultra 55). Samples were prepared by drop casting 10 µL of NPs onto a FP, followed by sputtering a thin conductive layer of gold onto the FP to facilitate lower magnification
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Published 19 Aug 2024

Facile synthesis of Fe-based metal–organic frameworks from Fe2O3 nanoparticles and their application for CO2/N2 separation

  • Van Nhieu Le,
  • Hoai Duc Tran,
  • Minh Tien Nguyen,
  • Hai Bang Truong,
  • Toan Minh Pham and
  • Jinsoo Kim

Beilstein J. Nanotechnol. 2024, 15, 897–908, doi:10.3762/bjnano.15.74

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  • -100Fe@Fe2O3 materials was collected using a field-emission scanning electron microscope Leo-Supra 55 (Carl Zeiss STM, Germany). An attenuated total reflectance (ATR) setup was adopted to record the Fourier-transform infrared (FTIR) spectra of all samples on a Frontier spectrometer (PerkinElmer, USA) in
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Published 19 Jul 2024

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

Unveiling the nature of atomic defects in graphene on a metal surface

  • Karl Rothe,
  • Nicolas Néel and
  • Jörg Kröger

Beilstein J. Nanotechnol. 2024, 15, 416–425, doi:10.3762/bjnano.15.37

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  • , 5 min). The Ar+ beam enclosed an angle of 15° with the surface normal and exhibited a flux of ≈0.01 1/(nm2·s). A chemically etched (NaOH, 0.1 M) W wire (purity: 99.99%, diameter: 50 μm) was used as the tip material. Tips were cleaned by field emission on and indentations into a clean Au(111) crystal
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Published 15 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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  • films was studied in cross-section view mode using a field-emission scanning electron microscope (FESEM) (Carl Zeiss). The samples were cleaved using a diamond cutter and placed on the SEM sample holder with the cross-sectional area facing the electron beam. All SEM images were captured using 5 keV
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Published 02 Apr 2024

Modification of graphene oxide and its effect on properties of natural rubber/graphene oxide nanocomposites

  • Nghiem Thi Thuong,
  • Le Dinh Quang,
  • Vu Quoc Cuong,
  • Cao Hong Ha,
  • Nguyen Ba Lam and
  • Seiichi Kawahara

Beilstein J. Nanotechnol. 2024, 15, 168–179, doi:10.3762/bjnano.15.16

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  • gravimetric analysis (TGA) of the samples was performed on a TA Q500 instrument. The temperature was increased at a heating rate of 10 °C /min from room temperature to 900 °C in air atmosphere. The morphology of the DPNR/GO-VTES was observed with field-emission scanning electron microscopy (FE-SEM) performed
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Published 05 Feb 2024

In situ optical sub-wavelength thickness control of porous anodic aluminum oxide

  • Aleksandrs Dutovs,
  • Raimonds Popļausks,
  • Oskars Putāns,
  • Vladislavs Perkanuks,
  • Aušrinė Jurkevičiūtė,
  • Tomas Tamulevičius,
  • Uldis Malinovskis,
  • Iryna Olyshevets,
  • Donats Erts and
  • Juris Prikulis

Beilstein J. Nanotechnol. 2024, 15, 126–133, doi:10.3762/bjnano.15.12

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  • materials in phase 2. A simulated annealing fitting algorithm was employed. The PAAO structure (Figure 1a) was confirmed using field-emission scanning electron microscopy (FE-SEM-4800, Hitachi, Tokyo, Japan). The relationship between thickness measurements using SEM and optical interferometry has been
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Published 31 Jan 2024

Assessing phytotoxicity and tolerance levels of ZnO nanoparticles on Raphanus sativus: implications for widespread adoptions

  • Pathirannahalage Sahan Samuditha,
  • Nadeesh Madusanka Adassooriya and
  • Nazeera Salim

Beilstein J. Nanotechnol. 2024, 15, 115–125, doi:10.3762/bjnano.15.11

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  • kcps, a duration of 50 s. Water was used as a dispersant with a NP concentration of 25 ppm following sonication for 30 min at 45 kHz using a GT SONIC-L3 sonicator. Particle size and shape of ZnO NPs were analyzed using Hitachi SU6600 FE (Field Emission)-SEM at the Sri Lankan Institute of Nanotechnology
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Published 23 Jan 2024
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