bluuebunny/crossref_metadata_2025_split huggingface dataset:
A comprehensive review of antitumor properties of Angelica species and their antitumor‐responsible constituents and the underlying molecular mechanisms involved in tumor inhibition
Authors: Sabeel Zufa , Liang Youfeng , Hao Mingxuan , Ying Lu , Guo Rui , Chen Ruolan , Li Xiaoning , Yu Changyuan , Yang Zhao 
Published: April 2023

AbstractAngelica species have been traditionally used for their medicinal properties. Recent studies have suggested their potential use as anticancer agents, making them an area of interest for further research. The review aims to summarize the current understanding of the potential anticancer effects of Angelica species and to provide insights for further research in this area. We searched for “Angelica” related information on Google Scholar, PubMed, ScienceDirect, Wiley, Science Citation Index Finder, and Springer link by searching keywords such as “Angelica,” “Angelica phytochemical,” “Angelica antitumor effect,” “Angelica molecular mechanisms,” and “Angelica clinical application.” Included articles focused on the Angelica plant's anticancer properties and clinical studies, while non‐cancer‐related biological or phytochemical investigations were excluded. We conducted a comprehensive search of books, journals, and databases published between 2001 and 2023, identifying 186 articles for this narrative review. The articles were analyzed for their potential anticancer properties and therapeutic applications. Active compounds in the Angelica genus, such as coumarins, furanocoumarins, phthalides, and polysaccharides, exhibit anticancer properties through various mechanisms. Specific species, like A. archangelica, Angelica sinensis, A. gigas, and A. ksiekie, have the potential as anticancer agents by targeting cellular pathways, generating reactive oxygen species, and inducing apoptotic cell death. Further research into the properties of the Angelica genus is needed for developing new treatments for cancer. Phytochemicals from Angelica species possess potential as anticancer agents, requiring further research for the development of effective, low‐cost, and low‐toxicity cancer treatments compared to synthetic antitumor drugs.
A novel technique in transoral robotic surgery: A case report of rotating and switching technique
Authors: Nishikawa Daisuke , Beppu Shintaro , Suzuki Hidenori , Terada Hoshino , Sawabe Michi , Hanai Nobuhiro 
Published: April 2023

AbstractBackgroundTransoral robotic surgery (TORS) for tongue base lesions located above the operative field is predominantly an upward procedure, which makes surgery difficult.MethodsTo illustrate our technique for this procedure, we report the case of an 82‐year‐old male with a p16‐negative oropharyngeal carcinoma of the tongue base who underwent TORS. The field of view was turned upside down, and the operation switched the typical left‐ and right‐arm functions. The daVinci Xi was docked, the 0° endoscope was rotated 180°, and the first arm was switched to the right hand and the third arm to the left hand.ResultsAlthough the lesion extended from the tongue base to the soft palate and mobile tongue, the planned resection line was followed.ConclusionsThis technique improves operability by allowing downward manipulation and preventing the left and right arms from crossing. Further validation of the technique's effectiveness and safety is needed.
Independence number of hypergraphs under degree conditions
Authors: Rödl Vojtěch , Sales Marcelo , Zhao Yi 
Published: April 2023

AbstractA well‐known result of Ajtai Komlós, Pintz, Spencer, and Szemerédi (J. Combin. Theory Ser. A 32 (1982), 321–335) states that every ‐graph on vertices, with girth at least five, and average degree contains an independent set of size for some . In this paper we show that an independent set of the same size can be found under weaker conditions allowing certain cycles of length 2, 3, and 4. Our work is motivated by a problem of Lo and Zhao, who asked for , how large of an independent set a ‐graph on vertices necessarily has when its maximum ‐degree . (The corresponding problem with respect to ‐degrees was solved by Kostochka, Mubayi, and Verstraëte (Random Struct. & Algorithms 44 (2014), 224–239).) In this paper we show that every ‐graph on vertices with contains an independent set of size , and under additional conditions, an independent set of size . The former assertion gives a new upper bound for the ‐degree Turán density of complete ‐graphs.
The spatio‐temporal interactive effects between ecological urbanization and industrial ecologization in the Yangtze River Delta region
Authors: Li Zaijun , Zhang Wenjing , Sarwar Suleman , Hu Meijuan 
Published: April 2023

AbstractIn this study, we investigated the spatio‐temporal synergistic relationship between ecological urbanization (EU) and industrial eco‐efficiency (IEE) in the context of the integrated development of the Yangtze River Delta region. The main findings are as follows: (1) EU and IEE generally exhibited similar spatial distribution patterns, with high values concentrated in the southern part of the delta and low values in the northern part and Anhui Province; there was also a high degree of coupling between the two systems. (2) IEE and EU's relationship presented a U‐shaped positive correlation trend from 2001 to 2019, and a positive correlation was observed in most cities, with highly correlated cities clustered in southern Zhejiang and Anhui province, while negative correlation cities scattered in a few cities in northern Zhejiang, northern Anhui, and southern Jiangsu. (3) Significantly spatial association characteristics were found between EU and IEE, with HEUHIEE type clustering mainly in southeastern delta cities, while the LEULIEE type slowly encroached upon northwest delta cities. (4). Synergistic promoting effects were identified between IEE and EU, whereby, the improvement of IEE in both local and neighboring cities contributed to promoting EU, and the progress of EU in both local and neighboring cities helped to promote IEE.
Permutation‐based true discovery proportions for functional magnetic resonance imaging cluster analysis
Authors: Andreella Angela , Hemerik Jesse , Finos Livio , Weeda Wouter , Goeman Jelle 
Published: April 2023

SummaryWe propose a permutation‐based method for testing a large collection of hypotheses simultaneously. Our method provides lower bounds for the number of true discoveries in any selected subset of hypotheses. These bounds are simultaneously valid with high confidence. The methodology is particularly useful in functional Magnetic Resonance Imaging cluster analysis, where it provides a confidence statement on the percentage of truly activated voxels within clusters of voxels, avoiding the well‐known spatial specificity paradox. We offer a user‐friendly tool to estimate the percentage of true discoveries for each cluster while controlling the family‐wise error rate for multiple testing and taking into account that the cluster was chosen in a data‐driven way. The method adapts to the spatial correlation structure that characterizes functional Magnetic Resonance Imaging data, gaining power over parametric approaches.
Pt‐functionalized Amorphous RuOx as Excellent Stability and High‐activity Catalysts for Low Temperature MEMS Sensors
Authors: Luo Na , Cai HaiJie , Lu Bo , Xue Zhenggang , Xu Jiaqiang 
Published: April 2023

AbstractThe unsaturated coordination and abundant active sites endow amorphous metals with tremendous potential in improving metal oxide semiconductors’ gas‐sensing properties. However, the amorphous materials maintain the metastable status and easily transfer into the lower‐active crystals during the gas‐sensing process at high working temperatures, significantly limiting their further applications. Here, a bimetal amorphous PtRu catalyst is developed by accurately regulating the introduction of Pt species into amorphous RuOx supports to realize the highly active and stable H2S gas‐sensing detection. It is found that incorporation of low‐concentration Pt species can effectively maintain the amorphous state of initial RuOx and delay the crystallization temperature as high as 100 °C. Further, ex situ XPS and in situ Raman spectroscopy analysis confirm that active Pt species can facilitate H2S adsorption by strong Pt‐S coordination and dissociate the sulfur species to the surrounding support, which contribute to the chemisorption and sensitization of H2S. Meanwhile, electron transport at the interface between Pt, RuOx and ZnO further activates the reaction process at the surface of the gas‐sensitive material. The final PtRu‐modified ZnO (PtRu/ZnO) sensor enables the detection of H2S in the ultra‐low concentration range of 15–2000 ppb with remarkable stability.
Disentangling the Role of the SnO Layer on the Pyro‐Phototronic Effect in ZnO‐Based Self‐Powered Photodetectors
Authors: Vieira Eliana M. F. , Silva José P. B. , Gwozdz Katarzyna , Kaim Adrian , Gomes Nuno M. , Chahboun Adil , Gomes Maria J. M. , Correia José H. 
Published: April 2023

AbstractSelf‐powered photodetectors (PDs) have been recognized as one of the developing trends of next‐generation optoelectronic devices. Herein, it is shown that by introducing a thin layer of SnO film between the Si substrate and the ZnO film, the self‐powered photodetector Al/Si/SnO/ZnO/ITO exhibits a stable and uniform violet sensing ability with high photoresponsivity and fast response. The SnO layer introduces a built‐in electrostatic field to highly enhance the photocurrent by over 1000%. By analyzing energy diagrams of the p‐n junction, the underlying physical mechanism of the self‐powered violet PDs is carefully illustrated. A high photo‐responsivity (R) of 93 mA W−1 accompanied by a detectivity (D*) of 3.1 × 1010 Jones are observed under self‐driven conditions, when the device is exposed to 405 nm excitation laser wavelength, with a laser power density of 36 mW cm−2 and at a chopper frequency of 400 Hz. The Si/SnO/ZnO/ITO device shows an enhancement of 3067% in responsivity when compared to the Al/Si/ZnO/ITO. The photodetector holds an ultra‐fast response of ≈ 2 µs, which is among the best self‐powered photodetectors reported in the literature based on ZnO.
Structural Electromagnetic Absorber Based on MoS2/PyC‐Al2O3 Ceramic Metamaterials
Authors: Liu Xingmin , Liu Heqiang , Wu Hongjing , Zhou Qian , Liang Hongsheng , Liu Guoqiang , Duan Wenyan , Gu Yue , Xu Chengying , Travitzky Nahum , Colombo Paolo , Riedel Ralf 
Published: April 2023

AbstractLimited by the types of suitable absorbents as well as the challenges in engineering the nanostructures (e.g., defects, dipoles, and hetero‐interface) using state‐of‐the‐art additive manufacturing (AM) techniques, the electromagnetic (EM) wave absorption performance of the current ceramic‐based materials is still not satisfying. Moreover, because of the high residual porosity and the possible formation of cracks during sintering or pyrolysis, AM‐formed ceramic components may in many cases exhibit low mechanical strength. In this work, semiconductive MoS2 and conductive PyC modified Al2O3 (MoS2/PyC‐Al2O3) ceramic‐based structural EM metamaterials are developed by innovatively harnessing AM, precursor infiltration and pyrolysis (PIP), and hydrothermal methods. Three different meta‐structures are successfully created, and the ceramic‐based nanocomposite benefit from its optimization of EM parameters. Ultra‐broad effective absorption bandwidth (EAB) of 35 GHz is achieved by establishment of multi‐loss mechanism via nanostructure engineering and fabrication of meta‐structures via AM. Due to the strengthening by the PyC phase, the bending strength of the resulting ceramics can reach ≈327 MPa, which is the highest value measured on 3D‐printed ceramics of this type that has been reported so far. For the first time, the positive effect deriving from the engineering of the microscopic nano/microstructure and of the macroscopic meta‐structure of the absorber on the permittivity and EM absorption performance is proposed. Integration of outstanding mechanical strength and ultra‐broad EAB is innovatively realized through a multi‐scale design route. This work provides new insights for the design of advanced ceramic‐based metamaterials with outstanding performance under extreme environment.
Hydrochromic Perovskite System with Reversible Blue‐Green Color for Advanced Anti‐Counterfeiting
Authors: Chen Jie , Zeng Yiwen , Sun Ruifen , Zhang Weiwei , Huang Yun , Zheng Jingcheng , Chi Yuwu 
Published: April 2023

AbstractThe intrinsic instability of halide perovskites toward to external stimulus, has created a competitive advantage for designing stimuli‐responsive materials. However, the external environment tuning reversibly fluorescence emission of perovskite system is still limited. In this work, humidity is verified to act as a new option to modulate the emission properties of mixed‐halide perovskite. The perovskite nanocrystals (PNCs) photoirradiated in dichloromethane are easily and stably redispersed in water, and emit bright fluorescence which is quite different from the original. Moreover, the perovskites confined on glass slide can reversibly switch their fluorescence between blue and green colors under moisture. It is demonstrated that the factors of different solubilities of CsCl and CsBr in water, the structural transformation of perovskites and the confine of glass matrix play key roles in the reversible transformation. Finally, the combination of hydrochromic CsPb(BrxCly)3 and water‐resistant CsPb(BrxCly)3‐polymethyl methacrylate have been applied in advanced anti‐counterfeiting, which greatly improves the information security. This work not only give an insight into the effects of humidity on fluorescence and structures of PNCs, but also offer a new class of hydrochromic PNCs materials based on reversible emission transformation for potential application in sensors, anti‐counterfeiting and information encryption.
Room Temperature Phosphorescence Carbon Dots: Preparations, Regulations, and Applications
Authors: Zhou Shengju , Wang Feixiang , Feng Ning , Xu Aoxue , Sun Xiaofeng , Zhou Jin , Li Hongguang 
Published: April 2023

AbstractRoom temperature phosphorescence (RTP) materials have drawn considerable attention by virtue of their outstanding features. Compared with organometallic complexes and pure organic compounds, carbon dots (CDs) have emerged as a new type of RTP materials, which show great advantages, such as moderate reaction condition, low toxicity, low cost, and tunable optical properties. In this review, the important progress made in RTP CDs is summarized, with an emphasis on the latest developments. The synthetic strategies of RTP CDs will be comprehensively summarized, followed by detailed introduction of their performance regulation and potential applications in anti‐counterfeiting, information encryption, sensing, light‐emitting diodes, and biomedicine. Finally, the remaining major challenges for RTP CDs are discussed and new opportunities in the future are proposed.
Shaping Copper Oxide Layers on Gold Nanoparticle Ensembles by Controlled Electrodeposition with Single Particle Scatterometry
Authors: Hwang Hyunsik , Oh Hyuncheol , Song Hyunjoon 
Published: April 2023

AbstractElectrodeposition of copper on gold nanoelectrode ensembles result in the formation of uniform copper oxide layers on individual nanoparticles. A linear sweep of voltammetric change induces three distinct morphologies dependent upon particle density. Ex situ imaging and in situ scatterometry at a single‐particle level identifies multi‐step electrochemical growth sequences that deviated from classical nucleation and growth pathways. In addition, the study demonstrated the possibility of synthesizing sophisticated structures based on the symmetry of nanoelectrodes. This result guides the nanoscale morphology control of electrode ensembles with potential application in electrocatalysis and sensing.
Monolithic Nickel Catalyst Featured with High‐Density Crystalline Steps for Stable Hydrogen Evolution at Large Current Density
Authors: Lei Zhanwu , Liu Peng , Yang Xin , Zou Peichao , Nairan Adeela , Jiao Shuhong , Cao Ruiguo , Wang Wenlong , Kang Feiyu , Yang Cheng 
Published: April 2023

AbstractProducing hydrogen via electrochemical water splitting with minimum environmental harm can help resolve the energy crisis in a sustainable way. Here, this work fabricates the pure nickel nanopyramid arrays (NNAs) with dense high‐index crystalline steps as the cata electrode via a screw dislocation‐dominated growth kinetic for long‐term durable and large current density hydrogen evolution reaction. Such a monolithic NNAs electrode offers an ultralow overpotential of 469 mV at a current density of 5000 mA cm−2 in 1.0 m KOH electrolyte and shows a high stability up to 7000 h at a current density of 1000 mA cm−2, which outperforms the reported catas and even the commercial platinum cata for long‐term services under high current densities. Its unique structure can substantially stabilize the high‐density surface crystalline steps on the catalytic electrode, which significantly elevates the catalytic activity and durability of nickel in an alkaline medium. In a typical commercial hydrogen gas generator, the total energy conversion rate of NNAs reaches 84.5% of that of a commercial Pt/Ti cata during a 60‐day test of hydrogen production. This work approach can provide insights into the development of industry‐compatible long‐term durable, and high‐performance non‐noble metal catas for various applications.
Dynamically Stabilized Electronic Regulation and Electrochemical Reconstruction in Co and S Atomic Pair Doped Fe3O4 for Water Oxidation
Authors: Liu Hai‐Jun , Zhang Shuo , Zhou Ya‐Nan , Yu Wen‐Li , Ma Yu , Wang Shu‐Tao , Chai Yong‐Ming , Dong Bin 
Published: April 2023

AbstractThe electronic regulation and surface reconstruction of earth‐abundant electrocatalysts are essential to efficient oxygen evolution reaction (OER). Here, an inverse‐spinel Co,S atomic pair codoped Fe3O4 grown on iron foam (Co,S‐Fe3O4/IF) is fabricated as a cost‐effective electrocatalyst for OER. This strategy of Co and S atomic pair directional codoping features accelerates surface reconstruction and dynamically stabilizes electronic regulation. CoS atomic pairs doped in the Fe3O4 crystal favor controllable surface reconstruction via sulfur leaching, forming oxygen vacancies and Co doping on the surface of reconstructed FeOOH (Co‐FeOOH‐Ov/IF). Before and after surface reconstruction via in situ electrochemical process, the Fe sites with octahedral field dynamically maintains an appropriate electronic structure for OER intermediates, thus exhibiting consistently excellent OER performance. The electrochemically tuned Fe‐based electrodes exhibit a low overpotential of 349 mV at a current density of 1000 mA cm−2, a slight Tafel slope of 43.3 mV dec−1, and exceptional long‐term electrolysis stability of 200 h in an alkaline medium. Density functional theory calculations illustrate the electronic regulation of Fe sites, changes in Gibbs free energies, and the breaking of the restrictive scaling relation between OER intermediates. This work provides a promising directional codoping strategy for developing precatalysts for large‐scale water‐splitting systems.
A Facile Molecular Approach to Amorphous Nickel Pnictides and Their Reconstruction to Crystalline Potassium‐Intercalated γ‐NiOOHx Enabling High‐Performance Electrocatalytic Water Oxidation and Selective Oxidation of 5‐Hydroxymethylfurfural
Authors: Dasgupta Basundhara , Hausmann Jan Niklas , Beltrán‐Suito Rodrigo , Kalra Shweta , Laun Konstantin , Zebger Ingo , Driess Matthias , Menezes Prashanth Wilfred 
Published: April 2023

AbstractThe low‐temperature molecular precursor approach can be beneficial to conventional solid‐state methods, which require high temperatures and lead to relatively large crystalline particles. Herein, a novel, single‐step, room‐temperature preparation of amorphous nickel pnictide (NiE; EP, As) nanomaterials is reported, starting from NaOCE(dioxane)n and NiBr2(thf)1.5. During application for the oxygen evolution reaction (OER), the pnictide anions leach, and both materials fully reconstruct into nickel(III/IV) oxide phases (similar to γ‐NiOOH) comprising edge‐sharing (NiO6) layers with intercalated potassium ions and a d‐spacing of 7.27 Å. Remarkably, the intercalated γ‐NiOOHx phases are nanocrystalline, unlike the amorphous nickel pnictide precatalysts. This unconventional reconstruction is fast and complete, which is ascribed to the amorphous nature of the nanostructured NiE precatalysts. The obtained γ‐NiOOHx can effectively catalyse the OER for 100 h at a high current density (400 mA cm−2) and achieves outstandingly high current densities (>600 mA cm−2) for the selective, value‐added oxidation of 5‐hydroxymethylfurfural (HMF). The NiP‐derived γ‐NiOOHx shows a higher activity for both processes due to more available active sites. It is anticipated that the herein developed, effective, room‐temperature molecular synthesis of amorphous nickel pnictide nanomaterials can be applied to other functional transition‐metal pnictides.
Breaking the Minimum Limit of Thermal Conductivity of Mg3Sb2 Thermoelectric Mediated by Chemical Alloying Induced Lattice Instability
Authors: Hu Jinsuo , Zhu Jianbo , Dong Xingyan , Guo Muchun , Sun Yuxin , Shi Wenjing , Zhu Yuke , Wu Hao , Guo Fengkai , Zhang Yi‐Xin , Ge Zhen‐Hua , Zhang Qian , Liu Zihang , Cai Wei , Sui Jiehe 
Published: April 2023

AbstractThermal properties strongly affect the applications of functional materials, such as thermal management, thermal barrier coatings, and thermoelectrics. Thermoelectric (TE) materials must have a low lattice thermal conductivity to maintain a temperature gradient to generate the voltage. Traditional strategies for minimizing the lattice thermal conductivity mainly rely on introduced multiscale defects to suppress the propagation of phonons. Here, the origin of the anomalously low lattice thermal conductivity is uncovered in Cd‐alloyed Mg3Sb2 Zintl compounds through complementary bonding analysis. First, the weakened chemical bonds and the lattice instability induced by the antibonding states of 5p‐4d levels between Sb and Cd triggered giant anharmonicity and consequently increased the phonon scattering. Moreover, the bond heterogeneity also augmented Umklapp phonon scatterings. Second, the weakened bonds and heavy element alloying softened the phonon mode and significantly decreased the group velocity. Thus, an ultralow lattice thermal conductivity of ≈0.33 W m−1 K−1 at 773 K is obtained, which is even lower than the predicated minimum value. Eventually, Na0.01Mg1.7Cd1.25Sb2 displays a high ZT of ≈0.76 at 773 K, competitive with most of the reported values. Based on the complementary bonding analysis, the work provides new means to control thermal transport properties through balancing the lattice stability and instability.