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Search for "lead" in Full Text gives 1260 result(s) in Beilstein Journal of Nanotechnology. Showing first 200.

Morphology and properties of pyrite nanoparticles obtained by pulsed laser ablation in liquid and thin films for photodetection

  • Akshana Parameswaran Sreekala,
  • Bindu Krishnan,
  • Rene Fabian Cienfuegos Pelaes,
  • David Avellaneda Avellaneda,
  • JosuĆ© AmĆ­lcar Aguilar-MartĆ­nez and
  • Sadasivan Shaji

Beilstein J. Nanotechnol. 2025, 16, 785–805, doi:10.3762/bjnano.16.60

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  • solvents (e.g., acetone) allow for rapid NP formation. This can result in bimodal size distributions (with smaller nanoparticles (1–35 nm) and some larger particles (50–60 nm)) with an average size of 17.06 nm due to uneven growth conditions, which may lead to broader size distributions or agglomeration
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Published 03 Jun 2025

Changes of structural, magnetic and spectroscopic properties of microencapsulated iron sucrose nanoparticles in saline

  • Sabina Lewińska,
  • Pavlo Aleshkevych,
  • Roman Minikayev,
  • Anna Bajorek,
  • Mateusz Dulski,
  • Krystian Prusik,
  • Tomasz Wojciechowski and
  • Anna Ślawska-Waniewska

Beilstein J. Nanotechnol. 2025, 16, 762–784, doi:10.3762/bjnano.16.59

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Published 02 Jun 2025

Efficiency of single-pulse laser fragmentation of organic nutraceutical dispersions in a circular jet flow-through reactor

  • Tina Friedenauer,
  • Maximilian Spellauge,
  • Alexander Sommereyns,
  • Verena Labenski,
  • Tuba Esatbeyoglu,
  • Christoph Rehbock,
  • Heinz P. Huber and
  • Stephan Barcikowski

Beilstein J. Nanotechnol. 2025, 16, 711–727, doi:10.3762/bjnano.16.55

Graphical Abstract
  • ]. The LFL of lipophilic drugs is of particular interest in improving their dissolution properties and oral absorption. Better dissolution properties and dissolution rates lead to a higher saturation limit, which allows one to reduce the required amount of the drug [38]. However, for sensitive active
  • materials, with curcumin not only reaching higher yields but also higher product selectivity. Nevertheless, it is noticeable as a common trend for both model substances that low concentrations (0.01 wt % curcumin or 0.1 wt % CBD) lead to the best increase in fragmentation efficiency, but also result in an
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Published 26 May 2025

Nanostructured materials characterized by scanning photoelectron spectromicroscopy

  • Matteo Amati,
  • Alexey S. Shkvarin,
  • Alexander I. Merentsov,
  • Alexander N. Titov,
  • MarĆ­a TaeƱo,
  • David Maestre,
  • Sarah R. McKibbin,
  • Zygmunt Milosz,
  • Ana Cremades,
  • Rainer Timm and
  • Luca Gregoratti

Beilstein J. Nanotechnol. 2025, 16, 700–710, doi:10.3762/bjnano.16.54

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  • charge distribution, to list the most important features. If the building blocks are crystallites, any change in the structure or chemical composition may lead to the formation of incoherent or coherent interfaces among them which may influence the final properties of the material. Often the volumes of
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Published 23 May 2025

High-temperature epitaxial growth of tantalum nitride thin films on MgO: structural evolution and potential for SQUID applications

  • Michelle Cedillo Rosillo,
  • Oscar Contreras López,
  • JesĆŗs Antonio DĆ­az,
  • AgustĆ­n Conde Gallardo and
  • Harvi A. Castillo Cuero

Beilstein J. Nanotechnol. 2025, 16, 690–699, doi:10.3762/bjnano.16.53

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  • -vacuum conditions, a small residual oxygen concentration inevitably remains within the deposition chamber. At elevated temperatures, the reactivity of these residual oxygen molecules increases, facilitating their adsorption onto the growing film surface. However, an increase in N2 pressure can lead to
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Published 22 May 2025

The impact of tris(pentafluorophenyl)borane hole transport layer doping on interfacial charge extraction and recombination

  • Konstantinos Bidinakis and
  • Stefan A. L. Weber

Beilstein J. Nanotechnol. 2025, 16, 678–689, doi:10.3762/bjnano.16.52

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  • ability of a solar cell to generate electrical current effectively. Particularly, the relative capability of the two interfaces to properly extract and block charges is critical, since issues such as energetic misalignment, trap states, and interfacial recombination may lead to an uneven extraction and
  • charge transport to the terminal. Furthermore, as a strong Lewis acid, BCF passivates mobile iodide defects at the perovskite/HTL interface, which act as recombination centers, thus reducing non-radiative recombination losses and improving hole extraction efficiency. These beneficial effects lead to a
  • , with an oxygen flow of 10 L/min. Then, a 1 M methylammonium lead iodide (MAPI) precursor solution was prepared (lead iodide 99.99% trace metals basis from TCI, methylammonium iodide >99.99% from Greatcell solar) with the materials dissolved in a DMF/DMSO (4:1) solvent and spin-coated using a two-step
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Published 21 May 2025

Nanoscale capacitance spectroscopy based on multifrequency electrostatic force microscopy

  • Pascal N. Rohrbeck,
  • Lukas D. Cavar,
  • Franjo Weber,
  • Peter G. Reichel,
  • Mara Niebling and
  • Stefan A. L. Weber

Beilstein J. Nanotechnol. 2025, 16, 637–651, doi:10.3762/bjnano.16.49

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  • reliability of capacitors [10]. Similarly, in next-generation photovoltaic devices, the dielectric properties of absorber layers, such as lead-halide perovskites, affect carrier recombination and electric field distribution, thereby influencing power conversion efficiency [11]. At the nanoscale, the
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Published 08 May 2025

Polyurethane/silk fibroin-based electrospun membranes for wound healing and skin substitute applications

  • Iqra Zainab,
  • Zohra Naseem,
  • Syeda Rubab Batool,
  • Muhammad Waqas,
  • Ahsan Nazir and
  • Muhammad Anwaar Nazeer

Beilstein J. Nanotechnol. 2025, 16, 591–612, doi:10.3762/bjnano.16.46

Graphical Abstract
  • in the silk thread needs to be removed for biomedical applications because it can lead to allergic reactions [75][76]. Recently, it has been reported that sericin, when used alone, is a biocompatible material. However, combining SF and sericin compromises its biocompatibility [77]. The SF produced by
  • be made of PU. However, PU in such devices may degrade when placed within the human body, which could lead to device failure [141]. Many researchers have found it difficult to explore these events because of the complexity in vivo. Hence, many studies have been conducted to learn more about the ways
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Published 24 Apr 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

Graphical Abstract
  • increases the mobility of the particle and the chances to collide and accumulate, results larger diameter of CNF. An equivalence ratio of 1.60 favors the formation of amorphous carbon, which can be attributed also to the reaction conditions. The thermal conditions at an equivalence ratio of 1.60 lead to a
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Published 23 Apr 2025

Nanomaterials in targeting amyloid-β oligomers: current advances and future directions for Alzheimer's disease diagnosis and therapy

  • Shiwani Randhawa,
  • Trilok Chand Saini,
  • Manik Bathla,
  • Rahul Bhardwaj,
  • Rubina Dhiman and
  • Amitabha Acharya

Beilstein J. Nanotechnol. 2025, 16, 561–580, doi:10.3762/bjnano.16.44

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  • definitive understanding. Genetic studies on AD patients indicate that mutations in the amyloid precursor protein (APP), such as the Osaka [3] and Arctic mutations [4], lead to an overproduction of soluble AβOs. These mutations are associated with an earlier onset of AD, often occurring before the age of 50
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Published 22 Apr 2025

Retrieval of B1 phase from high-pressure B2 phase for CdO nanoparticles by electronic excitations in CdxZn1āˆ’xO composite thin films

  • Arkaprava Das,
  • Marcin Zając and
  • Carla Bittencourt

Beilstein J. Nanotechnol. 2025, 16, 551–560, doi:10.3762/bjnano.16.43

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  • -based optoelectronic applications [7]. High-energy ion irradiation can lead to latent track formation or phase transitions, either from crystalline to crystalline or crystalline to amorphous, depending on the threshold electronic energy loss (Seth) [8][9]. The formation of latent tracks has been
  • exhibit a complete transformation compared to those of the CZ900_Pris sample. The introduction of a substantial number of defects may have relaxed the dipole selection rule, resulting in a destructive interference pattern within the multiple scattering signal. Such out-of-phase oscillations can lead to
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Published 17 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

Graphical Abstract
  • . Of note is that we also performed a subtraction of the carbon contribution due to co-deposition from residual hydrocarbons, see details in Supporting Information File 1, section S5. Briefly, under our high-vacuum conditions, residual hydrocarbon gases lead to contamination deposits during both FEBID
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Published 15 Apr 2025

Water in nanoporous hexagonal boron nitride nanosheets: a first-principles study

  • Juliana A. GonƧalves,
  • Ronaldo J. C. Batista and
  • Marcia C. Barbosa

Beilstein J. Nanotechnol. 2025, 16, 510–519, doi:10.3762/bjnano.16.39

Graphical Abstract
  • type of pore can alter the hydrophobicity of h-BN and influence the flow of water through it. Moreover, the formation of a hydrogen bond with the N–H-terminated surface in rhombic pores, which is absent in interactions with the B–N-terminated surface, may lead to asymmetries in water flow through the
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Published 11 Apr 2025

N2+-implantation-induced tailoring of structural, morphological, optical, and electrical characteristics of sputtered molybdenum thin films

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

Beilstein J. Nanotechnol. 2025, 16, 495–509, doi:10.3762/bjnano.16.38

Graphical Abstract
  • substrates under suitable conditions lead to improvements in functionality and address the needs of various cutting-edge industries [6][7]. For the deposition of Mo thin films, various techniques such as chemical vapor deposition, physical vapor deposition (RF sputtering and DC sputtering) [1][8][9], and
  • may influence the electrical properties. As the thickness changes, the internal stress distribution could lead to impediments in electron transport, causing slight deviations from linearity. Nitrogen ions create defects, vacancies, or impurities in the molybdenum film, acting as scattering centers for
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Published 01 Apr 2025

Impact of adsorbate–substrate interaction on nanostructured thin films growth during low-pressure condensation

  • Alina V. Dvornichenko,
  • Vasyl O. Kharchenko and
  • Dmitrii O. Kharchenko

Beilstein J. Nanotechnol. 2025, 16, 473–483, doi:10.3762/bjnano.16.36

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  • , subsequent growth kinetics, and final structural properties of thin films. These interactions are influenced by factors such as surface energetics, lattice matching, van der Waals forces, and chemical bonding configurations [20][21]. Strong interactions can lead to ordered nucleation and the formation of
  • [35]. We discuss effects of adsorbate–substrate interactions in dynamics of adsorbate structures formation and their statistical properties. It will be shown, that an increase in the strength of adsorbate–substrate interactions can induce adsorbate patterning on the first growing layer and lead to
  • reactions of adatoms between neighbor layers acts in the opposite manner to the adsorption coefficient [41]. An applied external electric field can affect the type and size of the surface structures [37][42][43]. Anisotropy of surface diffusion, induced by properties of the substrate, can lead to fractal
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Published 28 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

Graphical Abstract
  • heavy metal lead ions. The prepared lead sensor with ultrahigh sensitivity, based on silver-doped ZnO nanorods (Ag@ZnO NRs), was fabricated and characterized. The morphological, structural, compositional, and optical characteristics of the Ag@ZnO NRs were investigated using a variety of methods after
  • . Electrochemical techniques comparatively offer quick, portable, sensitive, and inexpensive basic equipment for heavy metal detection. The interactions between Ag@ZnO NRs and lead were studied using electrochemical methods. The prepared lead sensor using Ag@ZnO NRs show a very low detection limit and a very high
  • sensitivity toward lead. The lead chemical sensor that was developed had a detection limit of 3 ppm with a sensitivity of 16 µAĀ·ppmāˆ’1Ā·cmāˆ’2. The recorded reaction time of lead sensor was less than two seconds. Keywords: electrochemical methods; chemical sensor; doping; lead; nanoparticles; ZnO nanorods
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Published 26 Mar 2025

ReactorAFM/STM – dynamic reactions on surfaces at elevated temperature and atmospheric pressure

  • Tycho Roorda,
  • Hamed Achour,
  • Matthijs A. van Spronsen,
  • Marta E. CaƱas-Ventura,
  • Sander B. Roobol,
  • Willem Onderwaater,
  • Mirthe Bergman,
  • Peter van der Tuijn,
  • Gertjan van Baarle,
  • Johan W. Bakker,
  • Joost W. M. Frenken and
  • Irene M. N. Groot

Beilstein J. Nanotechnol. 2025, 16, 397–406, doi:10.3762/bjnano.16.30

Graphical Abstract
  • with the QTF is magnetically held inside the piezotube that consists of a single tube and performs both the coarse approach and the fine scanning motion. The piezoelement, made of lead zirconate titanate, is placed outside the reactor and rests on an aluminum tube, which is part of the reactor wall and
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Published 21 Mar 2025

Engineered PEG–PCL nanoparticles enable sensitive and selective detection of sodium dodecyl sulfate: a qualitative and quantitative analysis

  • Soni Prajapati and
  • Ranjana Singh

Beilstein J. Nanotechnol. 2025, 16, 385–396, doi:10.3762/bjnano.16.29

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  • ) and Bradford reagent (Cat. No. 19219) were purchased from SRL Chemicals (India). NIST-grade standards of arsenic (As3+), aluminium (Al3+), cadmium (Cd2+), zinc (Zn2+), mercury (Hg2+), nickel (Ni2+), copper (Cu2+), chromium (Cr3+), lead (Pb2+), iron (Fe3+), and cobalt (Co2+) (Cat. No. 041865), as well
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Published 20 Mar 2025

Development of a mucoadhesive drug delivery system and its interaction with gastric cells

  • Ahmet Baki Sahin,
  • Serdar Karakurt and
  • Deniz Sezlev Bilecen

Beilstein J. Nanotechnol. 2025, 16, 371–384, doi:10.3762/bjnano.16.28

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  • the drugs within the mucus microenvironment of the stomach and, thus, may lead to elevated local activity or absorption of the therapeutic agents from the mucosa. Results and Discussion Morphology of nanoparticles After the synthesis of alginate (Alg) and Eudragit-coated alginate (EudAlg
  • diffusion [41]. Larger particles may be filtered out, which reduces the absorption of therapeutic agents from the mucosa. Specifically, for this study, obtaining nanoscale Alg nanoparticles was critical since these particles were to be coated with a second polymer, Eudragit RS100, which would lead to
  • . Mucoadhesive drug delivery systems eventually lead to an increased amount of drug at the mucosa. However, these nanocarriers might also be trapped in the mucus layer and get washed away with mucus turnover. The ability to penetrate through the mucus layer and to reach the underlying epithelium are therefore
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Published 13 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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  • -term stability. A widely used ionomer binder is Nafion, which is highly acidic [11] and can corrode earth-abundant catalysts that are not acid-stable [12]. Ionomer binders can additionally lead to undesired side reactions, thus reducing the energy efficiency for the desired transformation [13
  • pulsed laser-grafted gold nanoparticle–carbon fiber paper composite would lead to enhanced electrocatalytic performance. Therefore, we applied the laser-grafted gold nanoparticle–carbon fiber paper composites as cathodes for electrocatalytic bicarbonate reduction in aqueous 0.5 M KHCO3, pH 8.3
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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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  • substrate, which ultimately lead to the development of stress and strain within the film. At a substrate temperature of 600 °C, the lattice constant value is the same as in the bulk material. The strain in films occurs due to lattice mismatch between film and bulk. The microstrain in films was calculated
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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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  • by embedding the samples in pure resin followed by curing at 60 °C for 24 h. The blocks were then subjected to a Leica UC7 ultramicrotome (Wetzlar, Germany) to make ultrathin (60 nm) sections followed by staining with uranyl acetate and lead citrate. The sections were allowed to air dry before
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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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  • . mutans can ferment carbohydrates, primarily sucrose and glucose or by-products in saliva, to produce weak organic acids. These acids lead to tooth surface demineralization and the subsequent enamel loss, resulting in tooth decay [6][7]. Furthermore, the biofilm formation by S. mutans contributes to
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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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  • of chemical (intermolecular and intramolecular hydrogen) bonds, which also lead to a highly cross-linked chitosan/PVA nanofiber matrix [162]. Table 7 summarizes the enhancement of material modifications on the mechanical properties of electrospun nanofiber. Another method to improve the mechanical
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Published 26 Feb 2025

Emerging strategies in the sustainable removal of antibiotics using semiconductor-based photocatalysts

  • Yunus Ahmed,
  • Keya Rani Dutta,
  • Parul Akhtar,
  • Md. Arif Hossen,
  • Md. Jahangir Alam,
  • Obaid A. Alharbi,
  • Hamad AlMohamadi and
  • Abdul Wahab Mohammad

Beilstein J. Nanotechnol. 2025, 16, 264–285, doi:10.3762/bjnano.16.21

Graphical Abstract
  • particularly high when the dipole moment exceeds 2.0 D. The hybridization of halogens does not impact electron mobility. However, it does lead to a decrease in hole mobility while possibly enhancing the separation of charge carriers [94]. In order to enhance the photocatalytic activity of BiOX, significant
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Published 25 Feb 2025
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