bluuebunny/crossref_metadata_2025_split huggingface dataset:
Bimetallic Sulfide MCdS Modified with TiO2 Nanoneedle Cocatalyst for Enhancing Photocatalytic H2‐evolution
Authors: Yang Haiyan , Luo Hao , Zhang Huabing , Li Furong , Jiang Zhiqiang , Zhang Hui 
Published: May 2023

AbstractMetal ion doping and composite materials preparation are the effective means to improve the activity of CdS photocatalysts. In this work, TiO2/MCdS (M=Zn, Ni) were synthetized by two steps hydrothermal method. The morphology, elemental composition and optical properties of TiO2/MCdS photocatalysts were characterized via XRD, SEM, TEM, XPS and UV‐Vis. Interestingly, TiO2 nanoneedles were able to grow inside ZnCdS particles, which caused a strong interaction between TiO2 and ZnCdS was formed. However, TiO2 nanoneedle and NiCdS were not closely combined. As a result, the TiO2/ZnCdS (581.8 μmol ⋅ g−1 ⋅ h−1) possessed the optimal H2 production rate and showed a 1.5‐fold improvement compared to TiO2/NiCdS. This improvement of photocatalytic activity was mainly attributed to the effective separation of photogenerated electron hole pairs and the synergistic catalysis of water decomposition into hydrogen by TiO2 nanneedle‐assisted catalyst. Thus, metal ion doping and TiO2 nanoneedle as co‐catalyst could improve the photocatalytic H2 production activity of CdS more effectively.
Mott‐Schottky Heterostructure Photocatalysis of Ag/h‐BN/Bi2O3 for Water Pollutants Degradation
Authors: Zhou Jianwei , Zhou Chen , Wang Chubei , Zhang Mingliang , Chu Liangliang , Duo Fangfang 
Published: May 2023

AbstractThe Ag/h‐BN/Bi2O3 ternary composite was facilely fabricated via self‐assembly combined with in situ reduction. Characterization results showed that the as‐prepared Ag/h‐BN/Bi2O3 possessed distinct surface plasma resonance (SPR) and Mott‐Schottky heterostructure, resulting in significant enhancement of catalytic activity for RhB removal, the reaction rate constant (2.26×10−2 min−1) is 2.5 times that of h‐BN/Bi2O3 under visible‐light irradiation for 2 hours, which was mainly ascribed to the SPR and Mott‐Schottky heterostructure result in Ag/h‐BN/Bi2O3 enhanced visible‐light harvesting capacity and the effectual spatial separation of photoinduced carriers. The quenching process of reactive species indicated that h+ and ⋅O2− play dominant role in the degradation for pollutants. This work demonstrates that Ag/h‐BN/Bi2O3 is a promising stability photocatalyst for water purification.
Synthesis of 1,2‐Dihydrofuro[3,4‐d]pyrimidine Derivatives as Potential VEGFR‐2 Inhibitors, and Proposed Mechanism for the 5,6‐Dihydro‐4H‐furo[3,4‐c]pyrrol‐4‐one
Authors: Yılmaz Ayşen Şuekinci , Kaçan Mesut 
Published: May 2023

AbstractThe fourteen novel 1,2‐dihydrofuro[3,4‐d]pyrimidine compounds were synthesized from 4‐(2‐azido‐2‐oxoethyl)furan‐3‐carbonyl azide, by the two selected Curtius rearrangement, nucleophilic addition, and intramolecular cyclization reactions. Molecular docking studies of these compounds were performed with vascular endothelial growth factors receptor‐2 (VEGFR‐2) tyrosine kinase (PDB ID:3WZE). Cytotoxicity studies against human prostate cancer cells (DU145), revealed that compound 8 e has cytotoxic potential. Additionally, in‐silico ADME studies appeared that most of the synthesized compounds obeyed Lipinski's rule. Also, the mechanism for 5,6‐dihydro‐4H‐furo[3,4‐c]pyrrol‐4‐one, which occurs in the reaction of isocyanate 2 with thiols, was proposed. The azide group acts as the leaving group in this reaction.
Preparation of Superhydrophobic Cotton Fabric with Ultraviolet Resistance and Photocatalysis Based on CuS/Reduced Graphene Oxide
Authors: Xu Lihui , Li Jun , Pan Hong , Wang Liming , Liu Yadong , Shen Yong 
Published: May 2023

AbstractIn the present study, the superhydrophobic cotton fabrics with ultraviolet (UV) resistance and photocatalytic properties were fabricated by polydimethylsiloxane (PDMS) and CuS/reduced graphene oxide (RGO). The CuS/RGO particles enhanced the surface roughness, and PDMS was used to reduce the surface energy of cotton fabrics and increase the adhesion of CuS/RGO particles to cotton fabrics. The water contact angle (WCA) of coated cotton fabrics could reach ∼158.4°, endowing the fabrics with excellent self‐cleaning and oil‐water separation properties. It is confirmed that cotton fabric can obtain superhydrophobic property by adjusting the concentration of CuS/RGO and PDMS. Thanks to the good photocatalytic activity and excellent ultraviolet absorption capacity of the composite material, the superhydrophobic fabrics possessed outstanding ultraviolet resistance with the maximum UV protection factor (UPF) of 851.2 and photocatalytic performance with the photocatalytic degradation rate of methylene blue 92 %. Furthermore, the prepared cotton fabric retained superhydrophobicity after 90 h UV irradiation or 2000 cycles rubbing. The flexible superhydrophobic cotton fabrics with UV protection had promising application prospects in various fields.
Aggregation Induced Transition by Modulation of Substituent Groups on Rofecoxib Analogues and Multi‐Stimulus Response Properties
Authors: Chen Nannan , Wei Yongbo , Liu Wei , Wu Tong , Zhou Jingming , Ye Yuqiu , Wang Zexin , Ke Yanbing , Jiang Hong , Xie Lijun 
Published: May 2023

AbstractAggregation‐induced emission luminogens (AIEgens) have been widely investigated due to their promising applications in data storage, organic light‐emitting diodes, and deep tissue bioimaging as compared to conventional fluorophores. In this work, we have designed and synthesized two novel rofecoxib analogues functionalized with different terminal groups (−NH2, −Br) on the benzene ring B. Interestingly, the compound 2 a‐3 with −NH2 substituent shows aggregation‐caused quenching effect whereas the compound 1 b‐3 with −Br group displays aggregation‐induced emission (AIE) property which may be caused by the twisted conformation and restricted – stacking of 1 b‐3 according to the X‐ray single crystal diffraction analysis. These opposite results indicated that the terminal groups could have great influence on the photophysical properties of targets. Moreover, the compound 1 b‐3 exhibited multi‐stimuli response luminescence behaviors under various external stimuli including solvatochromism, mechanochromism and acidochromism. Furthermore, lipid droplets imaging investigation proved the compound 1 b‐3 was capable of achieving specific lipid droplets bioimaging. This work not only presents a better understanding of the structure‐fluorescent property relationship based on the scaffold of rofecoxib, but also provides a new avenue for spectral modulation and the development of new MSR materials.
Ultrasound‐Mediated Monodesulfonation of Polyphenol Sulfonate and One‐Pot Generation of Alkyl Aryl Ether under Solvent‐Free Conditions
Authors: Ma Jianpeng , Li Yalin , Wu Pengjun , Zhao Jinhua , Zheng Weixin 
Published: May 2023

AbstractAn effective approach for monodesulfonation of polyphenol sulfonate under ultrasonic irradiation was reported. Series of substituted ortho‐, meta‐ or para‐hydroxylphenol sulfonates or 5‐hydroxy‐1,3‐phenylene bis(4‐methylbenzenesulfonate) were obtained specifically in the presence of sodium hydroxide in acetonitrile. With treatment of potassium carbonate in alcohol, alkyloxylphenol sulfonates was provided via one‐pot monodesulfanation followed by alkylation under ultrasonicated solvent‐free conditions. The alcohol had been regarded as green alkylation reagent. The results of the exploration of the scalability of monodesulfonation and one‐pot monodesulfonation‐alkylation of resorcinol bissulfonate indicated that such modes had the potential application value in scale production.
Efficient Removal of Lead(II), Cadmium(II) and Zinc(II) from Aqueous Solutions by Bis[2‐(1H‐benzimidazol‐2‐il)phenyl]disulfide, a Solid Chelating Agent
Authors: Barrón‐Zambrano Jesús Alberto , Ordaz‐Rivera Josué , Carrera‐Figueiras Cristian , Celaya Christian A. , Reina Miguel , Uc‐Cayetano Erbin Guillermo , Pérez‐Padilla Yamile , Estrella‐Gutiérrez M. A. , Esparza‐Ruiz Adriana 
Published: May 2023

AbstractThe bis[2‐(1H‐benzimidazol‐2‐yl)phenyl]disulfide [bis(2phSbz)] was characterized by SEM, nitrogen adsorption and desorption, PXRD, and TGA analysis. It was evaluated as a solid chelating adsorbent to remove lead(II), cadmium(II), and zinc(II) ions from aqueous solutions. Bis(2phSbz) consists of agglomerated, rectangular particles of non‐uniform size, lacking porosity and roughness. Metal ion sorption is pH dependent. The equilibrium data are described by the Langmuir model, while the pseudo‐second‐order model fits metal ions′ adsorption kinetics best. The maximum adsorption capacities for lead(II), cadmium(II), and zinc(II) were 543.82, 482.56, and 306.96 mg/g, respectively. In a competitive test, bis(2phSbz) was found to be able to selectively remove lead(II) from multicomponent solutions. Desorption efficiencies higher than 65 % can be achieved using EDTA 0.1 M as a desorption agent. From a theoretical standpoint, we corroborate the experimental results in terms of some significant quantum mechanics descriptors. Bis(2phSbz) may be a novel and potentially valuable chelating adsorbent for lead(II) removal.
Organocatalytic Regioselective Chloro‐sulfonylation of Mono‐ and 1,2‐Disubstituted Epoxides by Using 4‐Methylpyridine N‐Oxide
Authors: Yoshida Keisuke , Watanabe Takaaki , Masuda Juo , Nitta Mima , Kitagaki Shinji 
Published: May 2023

AbstractA highly regioselective organocatalytic chlorosulfonylation reaction for terminal epoxides is developed. The method uses various sulfonyl chloride reagents, such as MsCl or TsCl, and is catalyzed with 4‐methylpyridine N‐oxide. Several sulfonylated halohydrins are obtained with reasonable to high regioselectivity and the reaction is applied to 1,2‐disubstituted epoxides.
DBU‐Catalyzed Selective Isomerization of Unsaturated Alcohols to the Synthesis of Diversified Ketones
Authors: Qi Hongbo , Bai Yunlong , Ren Yanru , Yuan Xingyu , Chen Shufeng 
Published: May 2023

AbstractA convenient and straightforward DBU‐catalyzed selective isomerization of unsaturated alcohols for the construction of ketone scaffolds through a sequential deprotonation, hydrogen transfer and protonation process has been described. Control experiments demonstrate that the isomerization of propargyl alcohol can not be attributed to the Meyer‐Schuster rearrangement mechanism. In addition, substrates containing both allylic alcohol and propargyl alcohol structures can be selectively isomerized to afford the dibenzylideneacetones using this method.
Direct Evidence for Synchronicity between Rotation along Cα−C′ and Pyramidalization of C′ in Amides
Authors: Banerjee Shreya , Gupta Sunil K. , Prabhakaran Erode N. 
Published: May 2023

AbstractIn amides, the presence of sinusoidal synchronicity between rotational motion along Cα−C′ σ‐bond (τ rotation) and the concomitant pyramidalization of C′ (θ) is evidenced for the first time in solution. Temperature‐dependent 1H NMR and DFT simulations on suitable amide models (iBui−−Proi−Xaai+1−OMe; iBu is isobutyryl) reveal the perturbation in synchronicity when τ‐rotation is ‘locked’ with interactions, resulting in a strain on the amide bond, which influences a decrease in energy barrier for the amide bond cis/trans isomerism by ∼1.68 kcal/mol.
Rumour type matters: The effect of different types of rumours on coping, subjective well‐being, and interpersonal trust during the COVID‐19 pandemic
Authors: Jiang Xinying , Zhang Nan , Sun Xiaomin , Yang Shuting , Dong Mengxi , Yuan Yue , Lin Yiqin , Liu Zhenzhen , Zhu Yiming , Zhao Qi 
Published: May 2023

AbstractRumours circulated quickly online and offline during the COVID‐19 pandemic, but empirical research on the subject is limited. Combining qualitative (Study 1, content analysis was conducted on 2344 actual rumours extracted from a rumour‐refuting website) and quantitative methods (Study 2, a three‐wave study with 10‐day intervals), the current study suggests that (1) rumours during the pandemic can be categorised into three types, that is, wish, dread, and aggression rumours, and (2) exposure to different types of rumours is associated with coping consequences, subjective well‐being (comprising positive affect, negative affect, and life satisfaction), and interpersonal trust in different ways. Generally, wish rumours seem benign, while dread and aggression rumours are malicious. Specifically, wish rumours are believed to assist coping and to be positively associated with positive affect and interpersonal trust. In contrast, dread rumours are believed not to assist coping and to be marginally significantly and positively associated with negative affect and negatively associated with interpersonal trust. Meanwhile, aggression rumours are believed not to assist coping and are marginally significantly and positively associated with negative affect. All other relationships are nonsignificant. The results of the current study will help national governments and international agencies design and evaluate rumour control strategies and policies.
Three‐in‐One Oncolytic Adenovirus System Initiates a Synergetic Photodynamic Immunotherapy in Immune‐Suppressive Cholangiocarcinoma
Authors: Wang Jialun , Zhu Yun , Chen Yu , Huang Ying , Guo Qiyuan , Wang Yue , Chen Aotian , Zhou Yue , Xu Lei , Wang Lei , Zou Xiaoping , Li Xihan 
Published: May 2023

AbstractAlthough photodynamic immunotherapy has been promoted in the clinical practice of cholangiocarcinoma, the insensitivity to photodynamic immunotherapy remains to be a great problem. This can be largely attributed to an immune‐suppressive tumor microenvironment (TME) manifested as immature myeloid cells and exhausted cytotoxic T lymphocytes. Here, a three‐in‐one oncolytic adenovirus system PEG‐PEI‐Adv‐Catalase‐KillerRed (p‐Adv‐CAT‐KR) has been constructed to multiply, initiate, and enhance immune responses in photodynamic immunotherapy, using genetically‐engineered KillerRed as photosensitizer, catalase as in situ oxygen‐supplying mediator, and adenovirus as immunostimulatory bio‐reproducible carrier. Meanwhile, PEG‐PEI is applied to protect adenovirus from circulating immune attack. The administration of p‐Adv‐CAT‐KR induces increased antigen presenting cells, elevated T cell infiltrations, and reduced tumor burden. Further investigation into underlying mechanism indicates that hypoxia inducible factor 1 subunit alpha (Hif‐1α) and its downstream PD‐1/PD‐L1 pathway contribute to the transformation of immune‐suppressive TME in cholangiocarcinoma. Collectively, the combination of KillerRed, catalase, and adenovirus brings about multi‐amplified antitumor photo‐immunity and has the potential to be an effective immunotherapeutic strategy for cholangiocarcinoma.
In Vivo NIR‐II Fluorescence Lifetime Imaging of Whole‐Body Vascular Using High Quantum Yield Lanthanide‐Doped Nanoparticles
Authors: Guo Yongwei , Hu Jie , Wang Peiyuan , Yang Hongyi , Liang Sisi , Chen Dejian , Xu Kunyuan , Huang Yingping , Wang Qinglai , Liu Xiaolong , Zhu Haomiao 
Published: May 2023

AbstractSecond near infrared (NIR‐II, 1000–1700 nm) fluorescence lifetime imaging is a powerful tool for biosensing, anti‐counterfeiting, and multiplex imaging. However, the low photoluminescence quantum yield (PLQY) of fluorescence probes in NIR‐II region limits its data collecting efficiency and accuracy, especially in multiplex molecular imaging in vivo. To solve this problem, lanthanide‐doped nanoparticles (NPs) β‐NaErF4: 2%Ce@NaYbF4@NaYF4 with high PLQY and tunable PL lifetime through multi‐ion doping and core–shell structural design, are presented. The obtained internal PLQY can reach up to 50.1% in cyclohexane and 9.2% in water under excitation at 980 nm. Inspired by the above results, a fast NIR‐II fluorescence lifetime imaging of whole‐body vascular in mice is successfully performed by using the homebuilt fluorescence lifetime imaging system, which reveals a murine abdominal capillary network with low background. A further demonstration of fluorescence lifetime multiplex imaging is carried out in molecular imaging of atherosclerosis cells and different organs in vivo through NPs conjugating with specific peptides and different injection modalities, respectively. These results demonstrate that the high PLQY NPs combined with the homebuilt fluorescence lifetime imaging system can realize a fast and high signal‐to‐noise fluorescence lifetime imaging; thus, opening a road for multiplex molecular imaging of atherosclerosis.
Series of Halogen Engineered Ni(OH)2 Nanosheet for Pseudocapacitive Energy Storage with High Energy Density
Authors: Hao Jiangyu , Yan Lijin , Zou Xuefeng , Bai Youcun , Han Yuying , Zhu Chong , Zhou Yang , Xiang Bin 
Published: May 2023

AbstractNi(OH)2 nanosheet, acting as a potential active material for supercapacitors, commonly suffers from sluggish reaction kinetics and low intrinsic conductivity, which results in suboptimal energy density and long cycle life. Herein, a convenient electrochemical halogen functionalization strategy is applied for the preparation of mono/bihalogen engineered Ni(OH)2 electrode materials. The theoretical calculations and experimental results found that thanks to the extraordinarily high electronegativity, optimal reversibility, electronic conductivity, and reaction kinetics could be achieved through F functionalization . However, benefiting from the largest ionic radius, INi(OH)2 contributes the best specific capacity and morphology transformation, which is a new finding that distinguishes it from previous reports in the literature. The exploration of the interaction effect of halogens (F, INi(OH)2, F, BrNi(OH)2, and Cl, INi(OH)2) manifests that F, INi(OH)2 delivers a higher specific capacity of 200.6 mAh g−1 and an excellent rate capability of 58.2% due to the weaker electrostatic repulsion, abundant defect structure, and large layer spacing. Moreover, the F, INi(OH)2//FeOOH@NrGO device achieves a high energy density of 97.4 Wh kg−1 and an extremely high power density of 32426.7 W kg−1, as well as good cycling stability. This work develops a pioneering tactic for designing energy storage materials to meet various demands.
Selective Cocatalyst Decoration of Narrow‐Bandgap Broken‐Gap Heterojunction for Directional Charge Transfer and High Photocatalytic Properties
Authors: Li Jingwei , Fang Hongli , Wu Mengqi , Ma Churong , Lian Ruqian , Jiang San Ping , Ghazzal Mohamed Nawfal , Rui Zebao 
Published: May 2023

AbstractNarrow‐bandgap semiconductors are promising photocatalysts facing the challenges of low photoredox potentials and high carrier recombination. Here, a broken‐gap heterojunction Bi/Bi2S3/Bi/MnO2/MnOx, composed of narrow‐bandgap semiconductors, is selectively decorated by Bi, MnOx nanodots (NDs) to achieve robust photoredox ability. The Bi NDs insertion at the Bi2S3/MnO2 interface induces a vertical carrier migration to realize sufficient photoredox potentials to produce O2•− and •OH active species. The surface decoration of Bi2S3/Bi/MnO2 by Bi and MnOx cocatalysts drives electrons and holes in opposite directions for optimal photogenerated charge separation. The selective cocatalysts decoration realizes synergistic surface and bulk phase carrier separation. Density functional theory (DFT) calculation suggests that Bi and MnOx NDs act as active sites enhancing the absorption and reactants activation. The decorated broken‐gap heterojunction demonstrates excellent performance for full‐light driving organic pollution degradation with great commercial application potential.
Enriched Fe Doped on Amorphous Shell Enable Crystalline@Amorphous Core–Shell Nanorod Highly Efficient Electrochemical Water Oxidation
Authors: Sheng Hongbin , Qu Hao , Zeng Biao , Li Yanxin , Xia Chenghui , Li Can , Cao Lixin , Dong Bohua 
Published: May 2023

AbstractThe rational design of efficient and cost‐effective electrocatalysts for oxygen evolution reaction (OER) with sluggish kinetics, is imperative to diverse clean energy technologies. The performance of electrocatalyst is usually governed by the number of active sites on the surface. Crystalline/amorphous heterostructure has exhibited unique properties and opens new paradigms toward designing electrocatalysts with abundant active sites for improved performance. Hence, Fe doped Ni–Co phosphite (Fe‐NiCoHPi) electrocatalyst with cauliflower‐like structure, comprising crystalline@amorphous core–shell nanorod, is reported. The experiments uncover that Fe is enriched in the amorphous shell due to the flexibility of the amorphous component. Further density functional theory calculations indicate that the strong electronic interaction between the enriched Fe in the amorphous shell and crystalline core host at the core–shell interface, leads to balanced binding energies of OER intermediates, which is the origin of the catalyst‐activity. Eventually, the Fe‐NiCoHPi exhibits remarkable activity, with low overpotentials of only 206 and 257 mV at current density of 15 and 100 mA cm−2. Unceasing durability over 90 h is achieved, which is superior to the effective phosphate electrocatalysts. Although the applications at high current remain challenges , this work provides an approach for designing advanced OER electrocatalysts for sustainable energy devices.
Nanotransducer‐Enabled Wireless Spatiotemporal Tuning of Engineered Bacteria in Bumblebee
Authors: Cheng Xiaowen , Wang Chen , Yang Junzhu , Liu Dong , Liao Yuting , Wang Bin , Han Sanyang , Zhang Xue , Zheng Hao , Lu Yuan 
Published: May 2023

AbstractBumblebees are essential pollinators of wild‐flowering plants and crops. It is noticed that regulating the gut microorganisms of bumblebees is of great significance for the maintenance of bumblebee health and disease treatment. Additionally, social bees are used as models to study regulatory control methods of gut bacteria in vivo. However, these methods lack precision and are not studied in bumblebees. In this study, nanotransducers are used for wireless spatiotemporal tuning of engineered bacteria in bumblebees. These nanotransducers are designed as 1D chains with smooth surfaces for easy transport in vivo, and temperature‐controlled engineered bacteria colonize the guts of microbial‐free bumblebees. Thermal production in the bumblebee gut is achieved using magnetothermal and photothermal methods in response to nanotransducers, resulting in significant target protein upregulation in engineered bacteria in the bumblebee gut. This advanced technology enables the precise control of engineered bacteria in the bumblebee gut. It also lays the foundation for the treatment of bumblebee intestinal parasitic diseases and the elimination of pesticide residues.
Evolution of Electrocatalytic CO2 Reduction Activity Induced by Charge Segregation in Atomically Precise AuAg Nanoclusters Based on Icosahedral M13 Unit 3D Assembly
Authors: Hu Jiashen , Zhou Manman , Li Kang , Yao Aimin , Wang Yan , Zhu Qingtao , Zhou Yanting , Huang Liu , Pei Yong , Du Yuanxin , Jin Shan , Zhu Manzhou 
Published: May 2023

AbstractThe precise self‐assembly of building blocks at atomic level provides the opportunity to achieve clusters with advanced catalytic properties. However, most of the current self‐assembled materials are fabricated by 1/2D assembly of blocks. High dimensional (that is, 3D) assembly is widely believed to improve the performance of cluster. Herein, the effect of 3D assembly on the activity for electrocatalytic CO2 reduction reaction (CO2RR) is investigated by using a range of clusters (Au8Ag55, Au8Ag57, Au12Ag60) based on 3D assembly of M13 unit as models. Although three clusters have almost the same sizes and geometric structures, Au8Ag55 exhibits the best CO2RR performance due to the strong CO2 adsorption capacity and effective inhibition of H2 evolution competition reaction. The deep insight into the superior activity of Au8Ag55 is the unique electronic structure attributed to the charge segregation. This study not only demonstrates that the assembly mode greatly affects the catalytic activity, but also offers an idea for rational designing and precisely constructing catalysts with controllable activities.