bluuebunny/crossref_metadata_2025_split huggingface dataset:
Plasmonic and Photonic Modes in Colloidal CuS Nanocrystals
Authors: Elibol Kenan , Davoodi Fatemeh , Parekh Urvi , Taleb Masoud , Scheel Stefan , Burghard Marko , van Aken Peter A. , Klinke Christian , Talebi Nahid , Lesyuk Rostyslav 
Published: December 2024

AbstractCopper monosulfide (CuS), also known as covellite, displays exceptional optoelectronic characteristics, exhibiting both plasmonic and photonic absorption in its monolithic nanomaterial form. It is classified as a hybrid metallic‐semiconducting material and a natural hyperbolic material with a distinctive crystal structure. Nanostructured CuS has been demonstrated to support localized surface plasmon resonances (LSPR) in the near‐infrared spectral range. Here, the phenomenon of near‐infrared (NIR) to visible electromagnetic field localization in ultrathin crystalline quasi‐2D CuS nanocrystals is revealed. This is achieved by mapping LSPRs in a range of CuS structures using high‐resolution electron energy‐loss spectroscopy in combination with cathodoluminescence spectroscopy. In addition to LSPRs, a range of photonic modes in the visible and ultraviolet spectral ranges is identified in colloidally defined single‐crystalline nanostructures, with numerical simulations providing supporting evidence. Finally, CuS nanocrystals exhibit visible NIR light emission within the range of 600–900 nm when excited by an electron beam. Altogether, these properties make CuS nanocrystals highly suitable for applications in telecommunications, sensing, and nanophotonics.
Exciton Collimation, Focusing and Trapping Using Complex Transition Metal Dichalcogenide Lateral Heterojunctions
Authors: Lamsaadi Hassan , Cuche Aurelien , Agez Gonzague , Paradisanos Ioannis , Beret Dorian , Lombez Laurent , Renucci Pierre , Lagarde Delphine , Marie Xavier , Gan Ziyang , George Antony , Watanabe Kenji , Taniguchi Takashi , Turchanin Andrey , Combe Nicolas , Urbaszek Bernhard , Paillard Vincent , Poumirol Jean‐Marie 
Published: December 2024

AbstractControlling the motion of neutral excitons in optically active media is a mandatory development to enable the conception of advanced circuits and devices for applications in excitronics, quantum photonics, and optoelectronics. Recently, proof of unidirectional exciton transport from high‐ to low‐bandgap material is evidenced using a high‐quality lateral heterostructure separating transition metal dichalcogenide monolayers (TMD‐MLs). In this paper, by combining room‐temperature micro‐photoluminescence far‐field imaging with a statistical description of exciton transport, the underlying excitonic local distribution and fluxes taking place near lateral heterojunctions are unveiled. The complex 2D excitonic transport properties found near a linear interface separating WSe2 from MoSe2 TMD‐MLs are studied and reveal two distinct diffusion regimes profoundly affecting the effective diffusion length. Then, it is shown that combining two and three of these interfaces, allows advanced in‐plane control of the excitonic distribution and flux over large distances. Exciton focalization and trapping, allowing an increase in the local exciton density up to three orders of magnitude are demonstrated. Finally, flux collimation is achieved with the formation of parallel current lines extending a few micrometers away from the source. We believe that the deterministic shaping and positioning of the exciton distribution and flux shown here will be key toward the conception of realistic excitronic devices.
Enhanced Upconversion Photoluminescence in Freestanding Er3+ Doped SrTiO3 Scrolls via Strain Gradient Engineering
Authors: Shen Jiaying , Wen Yiyang , Cao Yilin , Chen Haisheng , Yang Ruhao , Zhang Shichao , Chen Wenwen , Zhang Fan , Ye Han , Zhang Yang , Wu Zhenping 
Published: December 2024

AbstractLanthanide‐doped phosphors have garnered significant attention in the field of optics due to their robust upconversion luminescence capabilities. Enhancing the upconversion luminescence of these phosphors is of paramount importance. The recent advancements in fabricating ultrathin freestanding perovskite oxides present new opportunities for exploring coupled properties such as flexoelectricity. A lanthanide‐doped freestanding perovskite oxide scroll, specifically an SrTiO3:Er scroll is introduced herein, exhibiting an average strain gradient of 9.5 × 104 m−1. The developed scroll structure achieves a remarkable enhancement in upconversion luminescence, with a maximum increase of 7.4 times at the wavelength of 548 nm, driven by the synergistic effects of ferroelectricity and flexoelectricity. Theoretical model is adopted to elucidate the relationship between the scroll structure and strain, further investigating the mechanisms underlying the photoluminescence enhancement. This work unveils a novel three–dimensional (3D) tubular platform for enhancing the luminescence of phosphors without structural constraints, facilitating integration with silicon photonics.
Contaminants Removal and Monitoring: The Role of Hybrid MOFs in Agricultural Advancement and Soil Amendment
Authors: Mohan Brij , Sharma Harish Kumar , Ručman Stefan , Singjai Pisith , Pombeiro Armando J. L. 
Published: December 2024

AbstractThe interest in improving soil quality through innovative methods continues to grow in sustainable agriculture. Despite the emergence of new techniques, there has been limited research on methods based on metal‐organic frameworks (MOFs). This review first addresses the current issues in the soil and agriculture industry and discusses recent approaches for improving soil quality. It then explores the latest advancements in MOF‐based methods, which hold the potential to enhance soil quality and increase crop yields significantly. The unique properties and physicochemical mechanisms behind MOFs' applications and analytical performance are presented, highlighting their potential for more efficient and cost‐effective soil enhancement solutions. The review reveals that these new MOF approaches show promise in enhancing soil quality through processes such as adsorption, extraction, analyte monitoring, fertilization, soil washing, and moisture sensing. This review can lead to a future with higher soil quality, ensuring better food production and a more sustainable agricultural industry.
Steep‐Slope IGZO Transistor Monolithically Integrated with Initialization‐Free Ag/Ti/Hf0.8Zr0.2O2 Atomic Threshold Switch
Authors: Park Junmo , Jung Hanggyo , Eom Deokjoon , Lee Heesoo , Kim Hyunhee , Kim Yonghoon , Jeon Jongwook , Kim Hyoungsub 
Published: December 2024

AbstractA steep‐slope In‐Ga‐Zn‐O (IGZO) field‐effect transistor (FET) monolithically integrated with an Ag/Ti/Hf0.8Zr0.2O2 atomic threshold switch (ATS) device is presented, which allows switching below the Boltzmann limit of 60 mV dec−1 at room temperature (25 °C). The low‐temperature processable IGZO FET is combined with the Hf0.8Zr0.2O2‐based ATS device, which featured initialization‐free and low‐voltage switching, to achieve an ultra‐low power device solution with back‐end‐of‐line process compatibility (≤400 °C). To further assess the potential of the ATS‐IGZO FET devices for circuit applications, they are applied to logic and memory integrated circuits. Inverter ring oscillator simulations are performed to investigate the relationship between switching speed and power consumption. In addition, static random‐access memory simulations are performed to verify that ATS‐IGZO FETs can achieve a stable noise margin along with low standby power consumption. This comprehensive evaluation provides an in‐depth assessment of the applicability of ATS‐IGZO FETs for ultra‐low power logic and memory applications, highlighting their potential for substantial performance improvements.
Palliative management for malignant biliary obstruction and gastric outlet obstruction from pancreatic cancer
Authors: Wu Pengfei , Chen Kai , He Jin 
Published: December 2024

AbstractPancreatic cancer is among the leading causes of gastrointestinal cancer‐related death, with a dismal prognosis. Over 80% of pancreatic cancer patients present with advanced disease, making curative resection unfeasible. These patients are often presented with malignant biliary obstruction (MBO) and gastric outlet obstruction (GOO). In these cases, palliative management is aimed to alleviate symptoms, enhance quality of life, and facilitate subsequent chemotherapy. Currently, neoadjuvant chemotherapy is frequently used in both borderline resectable and resectable pancreatic cancer, necessitating effective biliary and gastrointestinal drainage in a growing number of patients. Traditionally, surgical bypass was the gold standard, performed via either a minimally invasive or open approach. However, notable progress has emerged in developing endoscopic techniques, such as endoscopic retrograde cholangiopancreatography (ERCP) stenting for MBO and endoscopic enteral stenting for GOO. While these procedures provide rapid symptom relief, they are associated with higher stent dysfunction rates and more frequent re‐intervention needs. When ERCP fails, percutaneous transhepatic biliary drainage is a widely accepted alternative for MBO. Endoscopic ultrasound (EUS)‐guided techniques, including EUS‐guided biliary drainage and EUS‐guided gastroenterostomy, have recently gained prominence. Emerging clinical data suggest that these methods may be superior, potentially becoming the preferred first‐line palliative treatment for unresectable pancreatic cancer. This review will summarize the current evidence on managing MBO and GOO in patients with pancreatic cancer.
Analyzing Patterns of Skeletal Indicators of Developmental Stress Through the Double Lens of Ontogeny and the Life Course Approach in a Contemporary Reference Sample
Authors: Corron Louise K. , McPherson Cait B. , Hill Ethan C. , O'Donnell Lexi 
Published: December 2024

ABSTRACTObjectivesSkeletal indicators of developmental stress are commonly used to assess health, disease, and patterns of morbidity and mortality in past populations. Incorporating information about individual life history, such as adverse life events, allows for a more thorough understanding of their etiology. This paper adopts the double lens of ontogeny and the life course to analyze indicators of developmental stress in relation to known individual pathologies and developmental patterns of the cranium, vertebrae, and long bones.Material and MethodsSix skeletal indicators were collected on CT scans or virtual skeletal reconstructions of 1033 contemporary deceased male and female individuals aged between 0 and 20 years from New Mexico: cribra orbitalia, porotic hyperostosis, Harris lines, stunting, vertebral neural canal diameters, and bone mineral density. Autopsy reports provided information on age, sex, disease type, and duration. Polychoric and polyserial correlations, boxplots, balloon plots, factor analyses of mixed data, and cluster analyses were used to explore patterns among indicators, ontogeny, sex, and disease.ResultsThe presence and prevalence of indicators varied depending on age and disease: Harris lines, stunted growth, and cribra orbitalia were common in younger age groups and in cases of long‐term or respiratory illnesses, while porotic hyperostosis was more prevalent in adolescent and young adult males.DiscussionSkeletal indicators of developmental stress are most likely associated with the timing of adverse life events in relation to the corresponding ontogenetic patterns, developmental sensitivity to stressors, and developmental plasticity/canalization of the different skeletal elements that bear them.
Engineering Modular Peptide Nanoparticles for Ferroptosis‐Enhanced Tumor Immunotherapy
Authors: Wu Bihan , Yang Xuejiao , Kong Nan , Liang Juan , Li Sangshuang , Wang Huaimin 
Published: December 2024

AbstractIndoleamine 2,3‐dioxygenase 1 (IDO1) inhibitors are promising for treating tumors but have limited efficacy due to the immunosuppressive tumor microenvironment. In this study, we develop an orchestrated nanoparticle system using modular peptide assemblies, where the co‐assembled sequences are designed for the specific binding to the hydrophobic and hydrophilic domains, guiding the assembly process and enabling the customization of nanoparticle properties. We exploit the modularity of this platform to integrate a hydrophobic ferroptosis precursor, an IDO1 inhibitor, and a hydrophilic peptidic PD−L1 antagonist for optimizing therapeutic outcomes through ferroptosis‐enhanced tumor immunotherapy. The resulting nanoparticles induce immunogenic ferroptosis, enhance the intratumoral function of T lymphocytes, suppress regulatory T cells, and effectively modulate the immunosuppressive tumor microenvironment, thereby facilitating regression of tumor growth. This work provides a modular peptide‐based nanoparticle engineering strategy and holds significant potential for advancing cancer treatment.
Tailoring the Reprocessability of Thiol‐Ene Networks through Ring Size Effects
Authors: Scholiers Vincent , Fischer Susanne M. , Daelman Bram , Lehner Sandro , Gaan Sabyasachi , Winne Johan M. , Du Prez Filip E. 
Published: December 2024

AbstractRecycling thermosetting materials presents itself as a major challenge in achieving sustainable material use. Dynamic covalent cross‐linking of polymers has emerged as a viable solution that can combine the structural integrity of thermosetting materials with the (re−)processability of thermoplastics. Thioether linkages between polymer chains are quite common, and their use dates back to the vulcanization of rubbers. While it is known that thioether bonds can be triggered to exchange through transalkylation reactions, this process is usually slow, as thioether moieties not only have to be activated by an alkylating agent, but the activated thioether also has to associate with a second thioether moiety in a classical SN2‐type process. Here, we present the rational design of dynamic polymer networks based on simple dithiol‐based monomers and a fatty acid derived triene. Two neighboring thioethers can undergo a much faster bond exchange reaction, and we found that the exchange dynamics can be further tuned over almost three orders of magnitude by tailoring the distance between two thioether functionalities. This resulted in thioether‐cross‐linked materials that could be processed by extrusion, a continuous reprocessing technique that was previously not accessible for this class of cross‐linked materials, while still exhibiting appealing creep‐resistance below 70 °C.
Hot‐Pressed Polypropylene (PP) Membranes Modified With SiO2 Nanoparticles for Advanced Emulsified Oil/Water Separation
Authors: Yang Lin , Man Shuang , Zhao Nengneng , Li Jiale , Bo Shixuan , Zhang Ming 
Published: December 2024

ABSTRACTThe separation of oil from water, particularly from emulsions, is a critical environmental challenge. Polypropylene (PP), despite its potential as a membrane material for this purpose, faces limitations due to the large pore size of nonwoven fabrics, which hinders its effectiveness in oil/water separation. This study presents an innovative and cost‐effective approach to enhance PP membranes for emulsified oil/water separation through a combination of hot pressing and surface modification using dopamine (DA) and SiO2 nanoparticles. The resulting PP‐DA‐SiO2 membranes demonstrate improved hydrophilicity, with a water contact angle reduced to 26.6° compared to the 133° of the unmodified PP membrane. Moreover, these membranes exhibit exceptional separation performance, achieving a peak emulsion flux of 1382 L · m−2 · h−1 and maintaining a separation efficiency above 98% under gravity. The tensile strength of the modified membrane is also significantly improved, increasing from 2.31 N to 9.01 N. The membrane's antifouling capabilities are also noteworthy, as it retains an emulsion flux of 1032 L · m−2 · h−1 with a 98% separation efficiency after five consecutive cycles. The membrane demonstrates exceptional chemical and mechanical stability following treatments with salt, pH solutions, and rubbing, underscoring its robustness and reliability in various environmental conditions. This work offers a practical and efficient method for fabricating high‐performance oil/water separation membranes, advancing the application potential of PP in environmental remediation technologies.
Molybdenum Trioxide/Poly Vinyl Alcohol Polymer Nanocomposites: An Investigation of Structural, Optical, Mechanical and Photochromic Properties for Application in Smart Windows
Authors: Kaur Jaspreet , Savita  , Gupta Tripti , Kaur Navneet , Chauhan Rishi Pal , Sharma Annu 
Published: December 2024

ABSTRACTThe current work elucidates the investigation of optical, mechanical and photochromic behavior of molybdenum trioxide (MoO3) reinforced polyvinyl alcohol (PVA) (MoO3/PVA) nanocomposites (NCs) under the effect of changing UV exposure time as well as increasing wt% of nanofiller. For synthesizing self‐supporting and flexible MoO3/PVA NCs, solution‐casting technique was employed while MoO3 was synthesized using hydrothermal treatment. X‐Ray Diffraction (XRD) confirms the orthorhombic phase while transmission electron microscopy (TEM) and scanning electron microscopy (SEM) illustrates the sheet‐like morphology of MoO3. The calculated optical band gap (E

g
) of PVA decreases from 4.83 0.16 eV to 2.77 0.06 whereas the refractive index (n) increases from 1.46 to 2.04 after embedding 10 wt% of MoO3. The young's modulus for PVA was found to increase from 102.33 to 192.68 MPa after incorporation of 10 wt% of nanofiller. The photochromic studies reveal that the maximum optical modulation (relative reflectance % value ~19.08) and maximum coloration efficiency (~0.0916) corresponds to 10 wt% MoO3/PVA NC. Thus, the ability of fabricated NCs to modulate solar light transmittance automatically in response to UV exposure and reduce energy consumption by adjusting the indoor atmosphere makes them a highly sought‐after choice for ‘photochromic smart windows’.
Enhanced Conductivity of Chitosan Composite Membranes With Fractionated Kraft and Organosolv Lignin
Authors: Wolf Mark H. , Izaguirre Nagore , Labidi Jalel , Ribes‐Greus Amparo 
Published: December 2024

ABSTRACTDifferent bio‐based chitosan composites containing kraft or organosolv lignin submitted to successive extraction steps (ethyl acetate and then ethanol) are modified by immersion in a sulfuric acid solution to prepare membranes with suitable conductive properties. Characterization with Fourier‐transform infrared (FTIR) spectroscopy, thermogravimetric analysis (TGA), oxidative stability, water uptake studies, electron and proton conductivity assessments, and fuel cell performance tests contribute to understanding the relationship between the composite's structure and their properties. Immersion of the biocomposites in sulfuric acid solution incorporates sulfate groups, which form ionic interactions between the polymer chains. The stability of the modified biocomposites against radical oxidative degradation is improved. The dry biocomposites exhibit low electron conductivities 10−14 and 10−10 S cm−1 between −10°C and 60°C and show their potential to be used as electrical insulators. The sulfuric acid modification also disrupts the crystalline structure and renders the composites more hydrophilic, allowing for greater water absorption. As a result, the proton transport is facilitated, resulting in increased proton conductivity and power output in an H2/O2 fuel cell. Due to the increased affinity between the sulfate groups and the composites containing organosolv lignin fractions, they exhibit better oxidative stability, higher water uptake, and proton conductivity.
Water‐Soluble Supramolecular Polymer With Silver Ion Responsiveness
Authors: Hu Kai , Wang Zhuo , Wang Hu , Li Kanshe 
Published: December 2024

ABSTRACTA method for constructing a water‐soluble supramolecular polymer responsive to silver ion (Ag+) is achieved through the host–guest interaction between γ‐cyclodextrin (γ‐CD) and bis(phenyl ethenyl)pyridine guest monomer. Upon the addition of silver hexafluorophosphate (AgPF6) into the solution of the supramolecular polymer, precipitates of silver bromide (AgBr) and bis(phenyl ethenyl)pyridine monomer‐PF6 were formed in the solution, leaving only the host molecule γ‐CD. Therefore, the supramolecular polymer can be dissociated by AgPF6. Here, we provide a new strategy to fabricate water‐soluble supramolecular polymer with metal ion responsiveness. This method is expected to be applied in aqueous environments, to enrich the field of supramolecular chemistry and to promote the development of advanced materials with excellent properties.
New benzimidazole–indole–amide derivatives as potent α‐glucosidase and acetylcholinesterase inhibitors
Authors: Naimi Narges , Karimian Somaye , Dastyafteh Navid , Noori Mild , Mohammadi‐Khanaposhtani Maryam , Dadgar Armin , Larijani Bagher , Lotfi Vahid , Çelik İlhami , Aktaş Aydın , Sadeghian Nastaran , Taslimi Parham , Mahdavi Mohammad 
Published: December 2024

AbstractNew derivatives 6a–m with benzimidazole–indole–amide scaffold were developed, synthesized, and assessed for potential inhibitory effects on α‐glucosidase and acetylcholinesterase (AChE). These compounds were synthesized by various amine derivatives. With the exception of two compounds, the α‐glucosidase inhibitory activities of the title derivatives were more than that of the positive control acarbose. Moreover, the anti‐AChE activity of these compounds, with the exception of one compound, was better than that of tacrine (standard inhibitor). The most potent compound against α‐glucosidase was 3‐methylphenyl derivative 6i and the most potent compound against AChE was 3,4‐dimethoxyphenethyl derivative 6m. All the synthesized compounds were placed in the active sites of α‐glucosidase and AChE by in silico docking method and the obtained binding energies were approximately in agreement with the in vitro observed data. Interaction modes of the most potent compounds 6i and 6m demonstrated that these compounds interacted with important residues of their target enzymes. Molecular dynamics simulation was conducted specifically on compound 6i in complex with α‐glucosidase to obtain deeper insights into the behavior of this molecule. Furthermore, in silico pharmacokinetic and toxicity studies on the most potent compound predicted that these compounds have good profiles in terms of oral absorption and toxicity.