bluuebunny/crossref_metadata_2025_split huggingface dataset:
Synthesis of β‐Hydroxyselenides via Electrochemical Hydroxyselenenylation of Alkenes with Diselenides and H2O
Authors: Li Weiwei , Hu Yingyuan , Hou Junsheng , Li Jiaojiao , Zhang Xinxin , Li Jinxu , Wang Huijiao , Liu Qiang 
Published: February 2024

AbstractA practical electrochemical method for the synthesis of β‐hydroxyselenides has been developed under an external oxidant‐free condition at room temperature under air from alkenes with diselenides and H2O. A radical mechanism is proposed for this transformation and the gram‐scale reactions demonstrate the practicability of this reaction.
Control of ZIF‐62 and agZIF‐62 Film Thickness within Asymmetric Tubular Supports through Pressure and Dose Time Variation of Atomic Layer Deposition
Authors: Stone Dana M. , Morgan Sarah E. , Abdelmigeed Mai O. , Nguyen Jimmy , Bennett Thomas D. , Parsons Gregory N. , Cowan Matthew G. 
Published: February 2024

AbstractThin‐films of metal‐organic frameworks (MOFs) have widespread potential applications, especially with the emergence of glass‐forming MOFs, which remove the inherent issue of grain boundaries and allow coherent amorphous films to be produced. Herein, it is established that atomic layer deposition (ALD) of zinc oxide lends excellent control over the thickness and localization of resultant polycrystalline and glass zeolitic imidazole framework‐62 (ZIF‐62) thin‐films within tubular α‐alumina supports. Through the reduction of the chamber pressure and dose times during zinc oxide deposition, the resultant ZIF‐62 films are reduced from 38 µm to 16 µm, while the presence of sporadic ZIF‐62 (previously forming as far as 280 µm into the support) is prevented. Furthermore, the glass transformation shows a secondary reduction in film thickness from 16 to 2 µm.
General and Scalable Synthesis of Mesoporous 2D MZrO2 (M = Co, Mn, Ni, Cu, Fe) Nanocatalysts by Amorphous‐to‐Crystalline Transformation
Authors: Yan Jiawei , Luo Yifei , Zhu Mengyao , Yang Bixia , Shen Xiaoxin , Wang Zhiqi , Zhuang Zanyong , Yu Yan 
Published: February 2024

AbstractIn modern heterogeneous catalysis, it remains highly challenging to create stable, low‐cost, mesoporous 2D photo‐/electro‐catalysts that carry atomically dispersed active sites. In this work, a general shape‐preserving amorphous‐to‐crystalline transformation (ACT) strategy is developed to dope various transition metal (TM) heteroatoms in ZrO2, which enabled the scalable synthesis of TMs/oxide with a mesoporous 2D structure and rich defects. During the ACT process, the amorphous MZrO2 nanoparticles (M = Fe, Ni, Cu, Co, Mn) are deposited within a confined space created by the NaCl template, and they transform to crystalline 2D ACT‐MZrO2 nanosheets in a shape‐preserving manner. The interconnected crystalline ACT‐MZrO2 nanoparticles thus inherit the same structure as the original MZrO2 precursor. Owing to its rich active sites on the surface and abundant oxygen vacancies (OVs), ACT‐CoZrO2 gives superior performance in catalyzing the CO2‐to‐syngas conversion as demonstrated by experiments and theoretical calculations. The ACT chemistry opens a general route for the scalable synthesis of advanced catalysts with precise microstructure by reconciliating the control of crystalline morphologies and the dispersion of heteroatoms.
Fracture Resistant CrSi2‐Doped Silicon Nanoparticle Anodes for Fast‐Charge Lithium–Ion Batteries
Authors: Li Weiqun , Luo Chucheng , Fu Jimin , Yang Juan , Zhou Xiangyang , Tang Jingjing , Mehdi B. Layla 
Published: February 2024

AbstractLithium–ion batteries (LIBs) has been developed over the last three decades. Increased amount of silicon (Si) is added into graphite anode to increase the energy density of LIBs. However, the amount of Si is limited, due to its structural instability and poor electronic conductivity so a novel approach is needed to overcome these issues. In this work, the synthesized chromium silicide (CrSi2) doped Si nanoparticle anode material achieves an initial capacity of 1729.3 mAh g−1 at 0.2C and retains 1085 mAh g−1 after 500 cycles. The new anode also shows fast charge capability due to the enhanced electronic conductivity provided by CrSi2 dopant, delivering a capacity of 815.9 mAh g−1 at 1C after 1000 cycles with a capacity degradation rate of <0.05% per cycle. An in situ transmission electron microscopy is used to study the structural stability of the CrSi2‐doped Si, indicating that the high control of CrSi2 dopant prevents the fracture of Si during lithiation and results in long cycle life. Molecular dynamics simulation shows that CrSi2 doping optimizes the crack propagation path and dissipates the fracture energy. In this work a comprehensive information is provided to study the function of metal ion doping in electrode materials.
Phase Engineering Reinforced Energy Transfer for High‐Performance Blue Perovskite Light‐Emitting Diodes
Authors: Li Hui , Zhao Yingjie , Lu Jianxun , Feng Jiangang , Zhao Jiahui , Lin Kebin , Feng Wenjing , Jiang Lei , Wei Zhanhua , Du Zuliang , Wu Yuchen 
Published: February 2024

AbstractLayered metal‐halide perovskites, a category of self‐assembled quantum wells, are of paramount importance in emerging photonic sources, such as lasers and light‐emitting diodes (LEDs). Despite high trap density in two‐dimensional (2D) perovskites, efficient non‐radiative energy funneling from wide‐ to narrow‐bandgap components, sustained by the Förster resonance energy transfer (FRET) mechanism, contributes to efficient luminescence by light or electrical injection. Herein, it is demonstrated that bandgap extension of layered perovskites to the blue‐emitting regime will cause sluggish and inefficient FRET, stemming from the tiny spectral overlap between different phases. Motivated by the importance of blue LEDs and inefficient energy transfer in materials with phase polydispersity, wide‐bandgap quasi‐2D perovskites with narrow phase distribution, improved crystallinity, and the pure crystal orientation perpendicular to the charge transport layer are developed. Based on this emitter, high‐performance blue perovskite LEDs with improved electroluminescence (EL) external quantum efficiency (EQE) of 7.9% at 478 nm, a narrow full width at half‐maximum (FWHM) of 22 nm and a more stable EL spectra are achieved. These results provide an important insight into spectrally stable and efficient blue emitters and EL devices based on perovskites.
Engineering Ba2Bi2O6 Double Perovskite with La3+ for High Current Density Visible Light Photoelectrochemical Hydrogen Evolution
Authors: Guo Tirong , Fu Wen Tian , de Groot Huub J. M. 
Published: February 2024

AbstractA Lanthanum ion (La3+) incorporation strategy is implemented to modify Ba2Bi2O6‐based double perovskite photoelectrodes. X‐ray diffraction (XRD) characterization shows that highly crystalline Ba2La0.4Bi1.6O6 double perovskites with the space group I2/m are successfully prepared. UV–vis absorption spectra and the Tauc‐plot reveal an optical band gap Eg ≈1.57 ± 0.01 eV. A thickness dependence of the photoelectrodes photoelectrochemical (PEC) performance shows that the submicron (≈1 µm) 4‐times spin‐coated thin film photoelectrode displays strong p‐type conductivity, which delivers an encouraging photocurrent density of 0.88 mA cm−2 at 0.25 VRHE under AM 1.5G illumination. 10‐times coated and 20‐times coated medium thick (125.8–197 µm) photoelectrodes that exhibit moderate p‐type conductivity, show further enhanced photocurrent densities of 1.5 mA cm−2 at 0 VRHE. In contrast, charge recombination centers existing in a standard thick pellet (≈500 µm) Ba2La0.4Bi1.6O6 photoelectrode can quench photo‐generated charge carriers and greatly undermine PEC activities. The approach to doping at the Bi(III) sites contrasts with earlier efforts that focus on doping at the Bi(V) sites and thus paves the way for further tailoring a family of novel promising photocathode materials for efficient solar‐water conversion devices.
Manufacturing 3D Biomimetic Tissue: A Strategy Involving the Integration of Electrospun Nanofibers with a 3D‐Printed Framework for Enhanced Tissue Regeneration
Authors: Randhawa Aayushi , Dutta Sayan Deb , Ganguly Keya , Patil Tejal V. , Lim Ki‐Taek 
Published: February 2024

Abstract3D printing and electrospinning are versatile techniques employed to produce 3D structures, such as scaffolds and ultrathin fibers, facilitating the creation of a cellular microenvironment in vitro. These two approaches operate on distinct working principles and utilize different polymeric materials to generate the desired structure. This review provides an extensive overview of these techniques and their potential roles in biomedical applications. Despite their potential role in fabricating complex structures, each technique has its own limitations. Electrospun fibers may have ambiguous geometry, while 3D‐printed constructs may exhibit poor resolution with limited mechanical complexity. Consequently, the integration of electrospinning and 3D‐printing methods may be explored to maximize the benefits and overcome the individual limitations of these techniques. This review highlights recent advancements in combined techniques for generating structures with controlled porosities on the micro–nano scale, leading to improved mechanical structural integrity. Collectively, these techniques also allow the fabrication of nature‐inspired structures, contributing to a paradigm shift in research and technology. Finally, the review concludes by examining the advantages, disadvantages, and future outlooks of existing technologies in addressing challenges and exploring potential opportunities.
Chirality of Copper–Amino Acid Nanoparticles Determines Chemodynamic Cancer Therapeutic Outcome
Authors: Wang Shaobo , Zhao Yunchao , Yao Shuncheng , Wang Zhuo , Zhang Zeyu , Wen Kaikai , Ma Baojin , Li Linlin 
Published: February 2024

AbstractChirality is a prevalent characteristic in nature, where biological systems exhibit a significant preference for specific enantiomers of biomolecules. However, there is a limited exploration into utilizing nanomaterials’ chirality to modulate their interactions with intracellular substances. In this study, self‐assembled copper‐cysteine chiral nanoparticles and explore the influence of their charity on cancer chemodynamic therapy (CDT) are fabricated. Experimental and molecular dynamics (MD) simulation results demonstrate that the copper‐l‐cysteine chiral nanoparticles (Cu‐l‐Cys NPs) exhibit a stronger affinity toward l‐glutathione (l‐GSH) that is overproduced in cancer cells, compared to the copper‐d‐cysteine enantiomer (Cu‐d‐Cys NPs). The interaction between Cu‐l‐Cys NPs and l‐GSH triggers a redox reaction that depletes l‐GSH and converts Cu2+ into Cu+. Subsequently, Cu+ catalyzes a Fenton‐like reaction, decomposing H2O2 into highly cytotoxic hydroxyl radicals (•OH) for cancer CDT. In vivo, results confirm that Cu‐l‐Cys NPs with good biocompatibility elicit a pronounced cancer cell death and effectively inhibit tumor growth. This work proposes a new perspective on chirality‐enhanced cancer therapy.
An AIEgen and Iodine Double‐Ornamented Platinum(II) Complex for Bimodal Imaging‐Guided Chemo‐Photodynamic Combination Therapy
Authors: He Xidong , Yu Jie , Yin Renyong , Huang Yubin , Zhang Peng , Xiao Chunsheng , Chen Xuesi 
Published: February 2024

AbstractReal‐time biodistribution monitoring and enhancing the therapeutic efficacy of platinum(II)‐based anticancer drugs are urgently required to elevate their clinical performance. Herein, a tetraphenylethene derivative (TP) with aggregation‐induced emission (AIE) properties and an iodine atom are selected as ligands to endow platinum (II) complex TP‐Pt‐I with real‐time in vivo self‐tracking ability by fluorescence (FL) and computerized tomography (CT) imaging, and improved anticancer efficacy by the combination of chemotherapy and photodynamic therapy. Especially, benefiting from the formation of a donor‐acceptor‐donor structure between the AIE photosensitizer TP and Pt‐I moiety, the heavy atom effects of Pt and I, and the presence of I, TP‐Pt‐I displayed red‐shifted absorption and emission wavelengths, enhanced ROS generation efficiency, and improved CT imaging capacity compared with the pristine TP and the control agent TP‐Pt‐Cl. As a result, the enhanced intratumoral accumulation of TP‐Pt‐I loaded nanoparticles is readily revealed by dual‐modal FL and CT imaging with high contrast. Meanwhile, the TP‐Pt‐I nanoparticles show significantly improved tumor growth‐inhibiting effects on an MCF‐7 xenograft murine model by combining the chemotherapeutic effects of platinum(II) and the photodynamic effects of TP. This self‐tracking therapeutic complex thus provides a new strategy for improving the therapeutic outcomes of platinum(II)‐based anticancer drugs.
Dual‐Stimuli‐Responsive Modulation Organic Afterglow Based on N─H Proton Migration Mechanism
Authors: Man Zhongwei , Lv Zheng , Cao Yangyang , Xu Zhenzhen , Liao Qing , Yao Jiannian , Teng Feng , Tang Aiwei , Fu Hongbing 
Published: February 2024

AbstractOrganic afterglow materials have significant applications in information security and flexible electronic devices with unique optical properties. It is vital but challenging to develop organic afterglow materials possessing controlled output with multi‐stimuli‐responsive capacity. Herein, dimethyl terephthalate (DTT) is introduced as a strong proton acceptor. The migration direction of N─H protons on two compounds Hs can be regulated by altering the excitation wavelength (Ex) or amine stimulation, thereby achieving dual‐stimuli‐responsive afterglow emission. When the Ex is below 300 nm, protons migrate to S1‐2DTT, where strong interactions induce phosphorescent emission of Hs, resulting in afterglow behavior. Conversely, when the Ex is above 300 nm, protons interact with the S0DTT weakly and the afterglow disappears. In view of amine‐based compounds with higher proton accepting capabilities, it can snatch proton from S1‐2DTT and redirect the proton flow toward amine, effectively suppressing the afterglow but obtaining a new redshifted fluorescence emission with Δλ over 200 nm due to the high polarity of amine. Moreover, it is successfully demonstrated that the applications of dual‐stimuli‐responsive organic afterglow materials in information encryption based on the systematic excitation‐wavelength‐dependent (Ex‐De) behavior and amine selectivity detection.
CdSe Quantum Dots Enable High Thermoelectric Performance in Solution‐Processed Polycrystalline SnSe
Authors: Dou Wei , Gong Yaru , Huang Xinqi , Li Yanan , Zhang Qingtang , Liu Yuqi , Xia QinXuan , Jian Qingyang , Xiang Deshang , Li Di , Zhang Dewei , Zhang Shihua , Ying Pan , Tang Guodong 
Published: February 2024

AbstractHere, a high peak ZT of ≈2.0 is reported in solution‐processed polycrystalline Ge and Cd codoped SnSe. Microstructural characterization reveals that CdSe quantum dots are successfully introduced by solution process method. Ultraviolet photoelectron spectroscopy evinces that CdSe quantum dots enhance the density of states in the electronic structure of SnSe, which leads to a large Seebeck coefficient. It is found that Ge and Cd codoping simultaneously optimizes carrier concentration and improves electrical conductivity. The enhanced Seebeck coefficient and optimization of carrier concentration lead to marked increase in power factor. CdSe quantum dots combined with strong lattice strain give rise to strong phonon scattering, leading to an ultralow lattice thermal conductivity. Consequently, high thermoelectric performance is realized in solution‐processed polycrystalline SnSe by designing quantum dot structures and introducing lattice strain. This work provides a new route for designing prospective thermoelectric materials by microstructural manipulation in solution chemistry.
Carbon Catalysts Empowering Sustainable Chemical Synthesis via Electrochemical CO2 Conversion and Two‐Electron Oxygen Reduction Reaction
Authors: Zhao Yuying , Raj Jithu , Xu Xiang , Jiang Jianchun , Wu Jingjie , Fan Mengmeng 
Published: February 2024

AbstractCarbon materials hold significant promise in electrocatalysis, particularly in electrochemical CO2 reduction reaction (eCO2RR) and two‐electron oxygen reduction reaction (2e− ORR). The pivotal factor in achieving exceptional overall catalytic performance in carbon catalysts is the strategic design of specific active sites and nanostructures. This work presents a comprehensive overview of recent developments in carbon electrocatalysts for eCO2RR and 2e− ORR. The creation of active sites through single/dual heteroatom doping, functional group decoration, topological defect, and micro‐nano structuring, along with their synergistic effects, is thoroughly examined. Elaboration on the catalytic mechanisms and structure‐activity relationships of these active sites is provided. In addition to directly serving as electrocatalysts, this review explores the role of carbon matrix as a support in finely adjusting the reactivity of single‐atom molecular catalysts. Finally, the work addresses the challenges and prospects associated with designing and fabricating carbon electrocatalysts, providing valuable insights into the future trajectory of this dynamic field.
Magnetically Selective Versatile Transport of Microrobotic Carriers
Authors: Hu Xinghao , Kim Keonmok , Ali Abbas , Kim Hyeonseol , Kang Yumin , Yoon Jonghwan , Torati Sri Ramulu , Reddy Venu , Im Mi‐Young , Lim Byeonghwa , Kim CheolGi 
Published: February 2024

AbstractField‐driven transport systems offer great promise for use as biofunctionalized carriers in microrobotics, biomedicine, and cell delivery applications. Despite the construction of artificial microtubules using several micromagnets, which provide a promising transport pathway for the synchronous delivery of microrobotic carriers to the targeted location inside microvascular networks, the selective transport of different microrobotic carriers remains an unexplored challenge. This study demonstrated the selective manipulation and transport of microrobotics along a patterned micromagnet using applied magnetic fields. Owing to varied field strengths, the magnetic beads used as the microrobotic carriers with different sizes revealed varied locomotion, including all of them moving along the same direction, selective rotation, bidirectional locomotion, and all of them moving in a reversed direction. Furthermore, cells immobilized with magnetic beads and nanoparticles also revealed varied locomotion. It is expected that such steering strategies of microrobotic carriers can be used in microvascular channels for the targeted delivery of drugs or cells in an organized manner.
α‐Boryl Carbanions: The Influence of Geminal Heteroatoms in C−C Bond Formation
Authors: Fernández Elena 
Published: February 2024

AbstractThe wide applications of alpha‐boryl carbanions in selective coupling with organohalides, imines/carbonyls and conjugated unsaturated substrates has become an interesting tool for organic synthesis. Strategically, the inclusion of heteroatoms, such as Si, S, N, F, Cl, Br and I in the alpha position opens a new venue towards multifunctionalities in molecular design. Here, a conceptual and practical view on powerful carbanions, containing α‐silicoboron, α‐thioboron, α‐haloboron and α‐aminoboron is given, as well as a prespective on their efficient application for selective electrophilic trapping.
How to perform standardized sonographic examination of Cesarean scar pregnancy in the first trimester
Authors: Verberkt C. , Jordans I. P. M. , van den Bosch T. , Timmerman D. , Bourne T. , de Leeuw R. A. , Huirne J. A. F. 
Published: February 2024

ABSTRACTEarly diagnosis and appropriate management of Cesarean scar pregnancy (CSP) are crucial to prevent severe complications, such as uterine rupture, severe hemorrhage and placenta accreta spectrum disorders. In this article, we provide a step‐by‐step tutorial for the standardized sonographic evaluation of CSP in the first trimester. Practical steps for performing a standardized transvaginal ultrasound examination to diagnose CSP are outlined, focusing on criteria and techniques essential for accurate identification and classification. Key sonographic markers, including gestational sac location, cardiac activity, placental implantation and myometrial thickness, are detailed. The evaluation process is presented according to assessment of the uterine scar, differential diagnosis, detailed CSP evaluation and CSP classification. This step‐by‐step tutorial emphasizes the importance of scanning in two planes (sagittal and transverse), utilizing color or power Doppler and differentiating CSP from other low‐lying pregnancies. The CSP classification is described in detail and is based on the location of the largest part of the gestational sac relative to the uterine cavity and serosal lines. This descriptive classification is recommended for clinical use to stimulate uniform description and evaluation. Such a standardized sonographic evaluation of CSP in the first trimester is essential for early diagnosis and management, helping to prevent life‐threatening complications and to preserve fertility. Training sonographers in detailed evaluation techniques and promoting awareness of CSP are critical. The structured approach to CSP diagnosis presented herein is supported by a free e‐learning course available online. © 2024 The Authors. Ultrasound in Obstetrics & Gynecology published by John Wiley & Sons Ltd on behalf of International Society of Ultrasound in Obstetrics and Gynecology.
A cross‐sectional study on predictors of patients' tinnitus severity
Authors: Li Teng‐Fei , Cha Xu‐Dong , Wang Tian‐Yu , Liang Cai‐Quan , Li Feng‐Zhen , Wang Sheng‐Lei , Peng Hu , Ren Wen‐Wen , Deng Yue , Liu Huan‐Hai 
Published: February 2024

AbstractObjectiveTo identify factors that influence the severity of tinnitus via a hierarchical multiple linear regression model.MethodsThe study was a retrospective cross‐sectional analysis. The study included 331 patients experiencing tinnitus as their primary concern, who visited Shanghai Changzheng Hospital of the Navy Medical University between 2019 and 2021. Data on general health status and disease characteristics were collected from all patients. With their consent, participants underwent audiological evaluatons and completed questionnaires to analyze the characteristics of their tinnitus and the factors influencing its severity.ResultsThe correlation analysis showed a positive relationship between tinnitus frequency, tinnitus loudness, SAS scores, and PSQI scores with THI scores (P < 0.05) among nine examined variables (gender, handedness, employment status, age, BMI, tinnitus frequency, tinnitus loudness, SAS scores, and PSQI scores). The variables that were extracted from the multiple regression were; for the constant; β = −51.797, t = −4.484, P < 0.001, variable is significant; for the tinnitus loudness; β = 0.161, t = 2.604, P < 0.05, variable is significant; for the tinnitus frequency; β = 0.000, t = 1.269, P = 0.206, variable is not significant; for the SAS scores; β = 1.310, t = 7.685, P < 0.001, variable is significant; for the PSQI scores; β = 1.680, t = 5.433, P < 0.001, variable is significant. Therefore, the most accurate model for predicting severity in tinnitus patients is a linear combination of the constant, tinnitus loudness, SAS scores, and PSQI scores, Y(Tinnitus severity) = β0 + β1(Tinnitus loudness) + β2(SAS scores) + β3(PSQI scores). β0, β1, β2, and β3 are −51.797, 0.161, 1.310 and 1.680, respectively.ConclusionTinnitus severity is positively associated with loudness, anxiety levels, and sleep quality. To effectively manage tinnitus in patients, it is essential to promptly identify and address these accompanying factors and related symptoms.