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Search for "transport" in Full Text gives 773 result(s) in Beilstein Journal of Nanotechnology. Showing first 200.

Supramolecular hydration structure of graphene-based hydrogels: density functional theory, green chemistry and interface application

  • Hon Nhien Le,
  • Duy Khanh Nguyen,
  • Minh Triet Dang,
  • Huyen Trinh Nguyen,
  • Thi Bang Tam Dao,
  • Trung Do Nguyen,
  • Chi Nhan Ha Thuc and
  • Van Hieu Le

Beilstein J. Nanotechnol. 2025, 16, 806–822, doi:10.3762/bjnano.16.61

Graphical Abstract
  • evaporation curves entered into the decreasing rate period where there is deficiency of free water at the outer surface and water transport from the interior to the surface. The critical water content at which the first decreasing rate period began was identified to be about 40% (the left dashed line in
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Published 04 Jun 2025

Nanostructured materials characterized by scanning photoelectron spectromicroscopy

  • Matteo Amati,
  • Alexey S. Shkvarin,
  • Alexander I. Merentsov,
  • Alexander N. Titov,
  • María Taeño,
  • 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

Graphical Abstract
  • hemispherical analyzers, while guaranteeing adequate energy resolutions. Experimental The SPEM hosted at the ESCA microscopy beamline at Elettra uses diffraction optics to focus the incoming X-ray beam shaped by the photon transport optics to a 130 nm Gaussian-shaped spot. As shown with a sketch in Figure 4
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Published 23 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

Graphical Abstract
  • Konstantinos Bidinakis Stefan A. L. Weber Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany Institute for Photovoltaics, University of Stuttgart, Pfaffenwaldring 47, 70569 Stuttgart, Germany 10.3762/bjnano.16.52 Abstract Selective charge transport layers have a
  • devices are the small molecule 2,2',7,7'-tetrakis[N,N-di(4-methoxyphenyl)amino]-9,9'-spirobifluorene (spiro-OMeTAD) and the polymer poly[bis(4-phenyl)(2,4,6-trimethylphenyl)amine] (PTAA). In this work, we investigate the impact of hole transport layer doping on the performance and potential distribution
  • ; hole transport layer doping; Kelvin probe force microscopy; perovskite solar cells; Introduction Perovskite solar cells (PSCs) are a promising class of photovoltaic material that exhibits high power conversion efficiencies and relies on a low-cost solution-processed fabrication method [1][2][3][4]. At
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Published 21 May 2025

Colloidal few layered graphene–tannic acid preserves the biocompatibility of periodontal ligament cells

  • Teissir Ben Ammar,
  • Naji Kharouf,
  • Dominique Vautier,
  • Housseinou Ba,
  • Nivedita Sudheer,
  • Philippe Lavalle and
  • Vincent Ball

Beilstein J. Nanotechnol. 2025, 16, 664–677, doi:10.3762/bjnano.16.51

Graphical Abstract
  • demonstrated that cell adhesion may influence metabolic programming through regulation of adhesion molecules and glucose transport pathways [26][27]. Additionally, the molecular structure of tannic acid allows for potential enzymatic conversion into glucose derivatives via cellular metabolic pathways [28][29
  • ]. A previous study demonstrated that TA treatment enhanced glucose transport in 3T3-L1 cells through activation of insulin receptor phosphorylation and GLUT4 translocation [30]. These factors may have contributed to the observed enhancement in cellular metabolic activity at 24 h. The decrease in cell
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Published 20 May 2025

Aprepitant-loaded solid lipid nanoparticles: a novel approach to enhance oral bioavailability

  • Mazhar Hussain,
  • Muhammad Farooq,
  • Muhammad Asad Saeed,
  • Muhammad Ijaz,
  • Sherjeel Adnan,
  • Zeeshan Masood,
  • Muhammad Waqas,
  • Wafa Ishaq and
  • Nabeela Ameer

Beilstein J. Nanotechnol. 2025, 16, 652–663, doi:10.3762/bjnano.16.50

Graphical Abstract
  • release (98.89% ± 4.11%) in PBS (pH 7.4) and followed the Higuchi release model (with exponent n = 0.542), indicating non-Fickian diffusion (anomalous transport). The maximum concentration of drug in plasma and the bioavailability of optimal formulation APT-CD-NP4 were higher than those of pure APT
  • (Table 2). Regarding the measurements in PBS (pH 7.4), the value of n of all formulations APT-CD-NP1 to APT-PX-NP8 ranged from 0.542 to 0.943, demonstrating non-Fickian diffusion with anomalous drug transport. The drug release from polymer-based APT-loaded formulations is as follows: When the polymeric
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Published 15 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

Graphical Abstract
  • variations influence key properties such as charge transport, polarization dynamics, and defect distributions, directly impacting the performance of microelectronic and energy systems [14][15]. Understanding these effects requires correlating nanoscale dielectric properties with structural and morphological
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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
  • transport and gas exchange, which supports tissue regeneration and cell proliferation [22]. Furthermore, they have mechanical qualities that are similar to those of natural tissues, promoting and protecting the healing process [23]. Review Wound healing and skin regeneration The skin is a vital, protective
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Published 24 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

Graphical Abstract
  • composition of exosomes can provide valuable insights into the underlying pathology, making them a promising tool for diagnostic applications. Figure 5 demonstrates how exosomes can transport AβOs and tau protein, both of which are key biomarkers associated with AD. The accumulation of these proteins is
  • nm) have been primarily distributed in kidney, spleen, and liver, while larger GO sheets (>200 nm) accumulate in the lungs [99]. For brain targeting, NPs between 100 and 300 nm have been found optimal for BBB transport, while those smaller than 15 nm show faster clearance. Surface characteristics
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Published 22 Apr 2025

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

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

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

Graphical Abstract
  • as a molecular sieve [22][23][24][25]. Theoretical studies using molecular dynamics simulations analyzed the impact of the partial charge on the h-BN membrane surface on water molecules and salt ion transport [26]. They noted that the Coulomb interaction between water molecules/ions and the channels
  • influences the mobility of water/ions through the membrane. Consequently, the transport rates of both ions and water decrease when passing through the highly polarized membrane. Additionally, the salt rejection in the polarized channel increases in proportion to the channel length, accompanied by a reduction
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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
  • University, Kurukshetra, ensuring comprehensive and accurate characterization of the properties of Mo thin films. Results and Discussion SRIM-TRIM simulation The “Stopping & Range of Ions in Matter and Transport of Ions in Matter” (SRIM-TRIM) simulation software was used to quantitatively estimate
  • 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
  • charge carriers. Ion implantation may also create localized states within the film, causing some charge carriers to become trapped. This affects the charge transport mechanism, leading to slight nonlinearities. The ion implantation causes modifications in the grain structure of the molybdenum thin films
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Published 01 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

Graphical Abstract
  • potential and is particularly effective for operations involving very-low-energy ions. This grid enables ions to decelerate and traverse a field-free region near the source, ensuring minimal perturbations to the ion beam and facilitating precise ion transport. Results and Discussion Optimization of ion
  • extents of near-surface mass transport by the surface-confined ion-enhanced viscous flow [46]. Here, up to an ion incidence angle of 58°, the surface becomes unstable under 450 eV Ar-ion bombardment. Due to sputtering, a well-defined ripple formation is found after 1 h of 450 eV Ar-ion bombardment. With
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Published 31 Mar 2025

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

  • Tycho Roorda,
  • Hamed Achour,
  • Matthijs A. van Spronsen,
  • Marta E. Cañas-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
  • other microscope components, such as the piezoelement, are under UHV conditions. The reactor volume is connected to two gas capillaries that transport gas in and out of the sealed reactor. The gas is then analyzed during the reaction by means of a QMS, which is directly connected to the exit channel of
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Published 21 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

Graphical Abstract
  • Eudragit polymer. Particle size and zeta potential distribution The particle size distribution is an important parameter in drug delivery applications because it determines the transport across membranes. The Z-average diameters of Alg NPs and EudAlg NPs were 206.14 ± 32.31 and 219.22 ± 41.61 nm
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Published 13 Mar 2025

Vortex lattices of layered HTSCs at different vortex–vortex interaction potentials

  • Valerii P. Lenkov,
  • Anastasia N. Maksimova,
  • Anna N. Moroz and
  • Vladimir A. Kashurnikov

Beilstein J. Nanotechnol. 2025, 16, 362–370, doi:10.3762/bjnano.16.27

Graphical Abstract
  • transport properties. Therefore, it is of interest to study the magnetization reversal processes in a sample under conditions that allow for vortex clustering. Additionally, the process becomes more complicated in the presence of pinning centers. An effective method for research is the Monte Carlo method
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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

Graphical Abstract
  • and creating a high density of graphitic edges on the surfaces of carbon fibers [22]. Our process provides a carbon support material with retained porosity that does not slow mass transport in electrode processes [22], with a high surface area of carbon of 468 cm2 per geometric cm2 [23], derived from
  • not obfuscate the electrical characteristics [2]. The other circuit elements are the electrolyte resistance (Rel, the x-axis intercept), which was small because of the high ionic conductivity of the 1.0 M aqueous KHCO3 electrolyte, the Warburg impedance (Zw) due to mass transport limitations of the
  • primarily allow the passage of anions, proton transport or leakage, can occur because of the inherent structure and presence of water within the membrane [72][73][74]. This way, anodically generated protons can cross over into the cathode compartment and produce CO2 from bicarbonate. At a constant current
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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

Graphical Abstract
  • carrier transport, ZnTe can be used as a buffer layer in CdTe-based solar cells for back contact. Moreover, n-type zinc telluride films can be used in the window layer as a substitute for CdS [6]. Zinc telluride films are highly resistive with a resistivity of about several megaohm·centimetres [7]. The
  • of films with substrate temperature [42]. Grain boundaries have a significant effect on the electric transport properties in polycrystalline films. Grain boundaries are growth process-dependent phenomena and have a large number of charge-trapping centres. Thus, grain boundaries reduce the mobility of
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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

Graphical Abstract
  • -based propidium iodide uptake analysis The efficacy of nanomedicines mainly depends upon the effective cellular internalization and their transport to the appropriate intercellular effector site [52][53]. Studies have shown that based on its size and surface characteristics (i.e., hydrophilicity or
  • hydrophobicity, and C/O ratio) GO is internalized via clathrin or caveolae-mediated endocytosis and micropinocytosis [53]. The exposure to nanomaterials is known to affect plasma membrane integrity, which in turn initiates various metabolic processes, such as ineffective nutrient transport, unspecific molecular
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Published 03 Mar 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
  • photocatalytic systems differ from direct Z-scheme systems by incorporating an electron mediator between the two semiconductors. This mediator facilitates the transport and separation of electrons and holes. However, the inclusion of an ionic electron transport medium in the traditional Z-scheme photocatalytic
  • materials as photocatalysts. GO has attracted interest as another metal-free carbon material, owing to its two-dimensional ultrathin layered structure, robust stability, and remarkable capacity to transport charge carriers [110]. When coupled with suitable semiconductor materials or modified to other forms
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Published 25 Feb 2025

Radiosensitizing properties of dual-functionalized carbon nanostructures loaded with temozolomide

  • Radmila Milenkovska,
  • Nikola Geskovski,
  • Dushko Shalabalija,
  • Ljubica Mihailova,
  • Petre Makreski,
  • Dushko Lukarski,
  • Igor Stojkovski,
  • Maja Simonoska Crcarevska and
  • Kristina Mladenovska

Beilstein J. Nanotechnol. 2025, 16, 229–251, doi:10.3762/bjnano.16.18

Graphical Abstract
  • enable transport and delivery to brain tumors. Inorganic nanostructures as TMZ carriers have shown several advantages compared to organic ones with respect to physicochemical stability and potency/cytotoxic activity, overcoming their main disadvantages, that is, hydrophobicity/fluidity and toxicity by
  • release was also provided through loading TMZ in a hybrid compound of carbon quantum dots, chitosan, polyethylene oxide, and carboxymethyl cellulose–polyvinyl alcohol (CS-PEO-CQDs/CMC-PVA) via coaxial spinning, and a transport system of CMC-PVA coating and CS-PEO-CQDs core was formed [41][42]. In a study
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Published 19 Feb 2025

Synthesis and the impact of hydroxyapatite nanoparticles on the viability and activity of rhizobacteria

  • Bedah Rupaedah,
  • Indrika Novella,
  • Atiek Rostika Noviyanti,
  • Diana Rakhmawaty Eddy,
  • Anna Safarrida,
  • Abdul Hapid,
  • Zhafira Amila Haqqa,
  • Suryana Suryana,
  • Irwan Kurnia and
  • Fathiyah Inayatirrahmi

Beilstein J. Nanotechnol. 2025, 16, 216–228, doi:10.3762/bjnano.16.17

Graphical Abstract
  • maintain their viability over time [4]. Consequently, the characteristics of the carrier material used to transport rhizobacteria are critical in determining their survival and successful colonization within both soil and root systems. This, in turn, contributes to the development of biofertilizers as a
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Published 18 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

Graphical Abstract
  • of MOF-based MMMs in a general context have been published by Lin et al. [27] and Kitao and coworkers [28]. Focusing on gas separation in general, Daglar et al. [29] have summarized computational approaches to simulate gas transport in thin-film MOF membranes and MOF-based MMMs. With an emphasis on
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Published 12 Feb 2025

Comparison of organic and inorganic hole transport layers in double perovskite material-based solar cell

  • Deepika K and
  • Arjun Singh

Beilstein J. Nanotechnol. 2025, 16, 119–127, doi:10.3762/bjnano.16.11

Graphical Abstract
  • , that is, La2NiMnO6 (LNMO), is studied with the organic and inorganic hole transport layers (HTLs) Cu2O and PEDOT:PSS. Our study yields a significant improvement in the power conversion efficiency (PCE) of perovskite solar cells with two types of HTLs. The optimized devices achieved a maximum PCE of
  • performance. Keywords: double perovskite solar cell (DPSC); electron transport layer (ETL); hole transport layer (HTL); SCAPS-1D; simulation; Introduction The rapid growth of the world population has increased the global need for energy, which has become undoubtedly quite strong. To date, the energy
  • 2009 to 26.1% in 2023 [5][6]. PSCs consist of an absorber layer sandwiched between charge transport layers (CTLs), that is, the hole transport layer (HTL) and the electron transport layer (ETL). Light generates excitons, which further dissociate into electrons and holes. The electrons and holes are
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Published 06 Feb 2025

Nanocarriers and macrophage interaction: from a potential hurdle to an alternative therapeutic strategy

  • Naths Grazia Sukubo,
  • Paolo Bigini and
  • Annalisa Morelli

Beilstein J. Nanotechnol. 2025, 16, 97–118, doi:10.3762/bjnano.16.10

Graphical Abstract
  • NCs to transport drugs, mRNAs, and other therapeutic agents directly to the site of pathology represents a significant advancement in medical treatment modalities. This approach can significantly support the shift towards more targeted and efficient therapeutic strategies. This progress results from
  • transport across membranes, and extend circulation times. These advantages could reduce the negative effects of off-target drug accumulation and improve the release to the disease sites compared to current delivery systems [6]. Despite the expected applications in the biomedical field, the journey of NPs
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Published 31 Jan 2025

Modeling and simulation of carbon-nanocomposite-based gas sensors

  • Roopa Hegde,
  • Punya Prabha V,
  • Shipra Upadhyay and
  • Krishna S B

Beilstein J. Nanotechnol. 2025, 16, 90–96, doi:10.3762/bjnano.16.9

Graphical Abstract
  • (reaction engineering, transport of diluted species, laminar flow, and chemistry interface), create the geometry of the sensor within a gas chamber, and select the materials. We then set up the physics with boundary conditions, mesh the geometry using tetrahedral and triangular elements, and define study
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Published 30 Jan 2025

Characterization of ZnO nanoparticles synthesized using probiotic Lactiplantibacillus plantarum GP258

  • Prashantkumar Siddappa Chakra,
  • Aishwarya Banakar,
  • Shriram Narayan Puranik,
  • Vishwas Kaveeshwar,
  • C. R. Ravikumar and
  • Devaraja Gayathri

Beilstein J. Nanotechnol. 2025, 16, 78–89, doi:10.3762/bjnano.16.8

Graphical Abstract
  • reduction currents and increased peak oxidation, indicating rapid electron transport at the contacts between the electrolyte and electrode. Pseudo-capacitive behavior was observed in both electrolytes, where ionic conductivity influenced capacitance [17][18]. The addition of dextrose increased the redox
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Published 30 Jan 2025
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