bluuebunny/crossref_metadata_2025_split huggingface dataset:
Recent Advances of Transition Metal Complexes for Photopolymerization and 3D Printing under Visible Light
Authors: Ferraro Valentina , Adam Clara R. , Vranic Aleksandra , Bräse Stefan 
Published: May 2023

AbstractThe possibility of exploiting visible light to induce polymerizations is extremely appealing from a technological point of view as it improves the sustainability of the overall process. To achieve this objective, it is necessary to employ single‐ or multicomponent systems containing a photoinitiator, and in some cases, a photosensitizer in combination. Due to their long‐lived excited states and reversible redox properties, transition metal complexes are a valid choice to be applied in photoinitiating systems, often exhibiting enhanced conversions compared to purely organic compounds. This review presents an overview of the transition metal complexes exploited in photopolymerization reactions. Particular attention will be devoted to recent applications in 3D printing, highlighting the possible challenges that need to be faced to achieve highly efficient and more sustainable processes.
Inhomogeneous Friction Behaviour of Nanoscale Phase Separated Layered CuInP2S6
Authors: Wang Lei , Zhang Dawei , Luo Zheng‐Dong , Sharma Pankaj , Seidel Jan 
Published: May 2023

AbstractMechanical friction leads to wear and energy dissipation, and its control is of high importance in new‐generation miniature electromechanical devices. 2D materials such as graphene are considered to be excellent solid lubricants due to their ultralow friction and have attracted considerable research interest. Unique friction properties are discovered in various other 2D materials. However, the friction of functional van der Waals materials which have potential applications in novel nanoelectronics, like ferroelectric copper indium thiophosphate, has barely been studied. Herein, the study reports on the observation of inhomogeneous friction behavior existing in copper‐deficient CuInP2S6 (Cu0.2In1.26P2S6), which exhibits a nanoscale phase separation of polar and non‐polar crystalline phases. The paraelectric In4/3P2S6 phase exhibits higher friction than the ferroelectric CuInP2S6 phase, while phase boundaries between the two phases, interestingly, display the lowest friction. The origin of this phenomenon is attributed to different lattice strains of phases together with the presence of large strains at the nanoscale phase boundaries, which also manifests in the nonuniform tip‐sample adhesion force. The findings provide new insights into nanoscale device design and wear behavior of a phase‐separated van der Waals ferroelectric, which may help to reduce the power consumption of friction‐exhibiting devices and extend their service life.
Advances in Optical Fiber Aptasensor for Biochemical Sensing Applications
Authors: Li Like , Zhang Ya‐nan , Zhang Hongrui , Li Xuegang , Zhao Yong 
Published: May 2023

AbstractOptical fiber biochemical sensing technology, as a cutting‐edge, multidisciplinary, and universal sensing technology, is gradually becoming the research focus in the field of biochemical sensing. They enjoy distinctive characteristics such as high cost‐effectiveness, flexibility, resistance to electromagnetic interference, and small size and can be used to detect biochemical analytes at ultra‐low concentrations with ultra‐low sample consumption, even when these biochemical analytes are in hard‐to‐reach environments. An aptamer is a DNA or RNA oligonucleotide fragment with a high affinity for the target selected from random sequences. Due to their advantages of simple synthesis, low cost, good stability, good specificity, and strong affinity, they are gradually becoming ideal recognition elements and may replace antibodies as next‐generation target receptors. Therefore, aptamers, as functional materials, are integrated into optical fiber sensors, which are called optical fiber aptasensors, providing new opportunities for the construction of high‐performance and intelligent biochemical sensors. This article aims to review the recent research progress of fiber‐optic aptamer biochemical sensors, with a focus on their sensing mechanisms and applications. Finally, based on the existing deficiencies of fiber‐optic aptamer biochemical sensors and practical requirements, their future development trends are briefly discussed.
Co‐MOF as Stress‐Buffered Architecture: An Engineering for Improving the Performance of NiS/SnO2 Heterojunction in Lithium Storage
Authors: Zhang Ning , Meng Qianqian , Wu Hongyu , Hu Xin , Zhang Mengmeng , Zhou Anbin , Li Yuetong , Huang Yongxin , Li Li , Wu Feng , Chen Renjie 
Published: May 2023

AbstractHeterostructures with interfacial effects have exhibited great potential for improving the electrochemical kinetics of electrode materials. However, the application of heterostructures is hampered by complicated synthesis parameters and numerous single components. Herein, a multiple‐templating synthesis strategy is proposed to improve the interfacial effect of heterojunction composites, mitigate volume variation upon lithiation/de‐lithiation, and increase interfacial compatibility with poly‐oxyethylene‐based (PEO‐based) electrolytes. Benefiting from the structural and compositional superiorities, the novel NiS/SnO2/MOF (NSM) electrode achieves superior electrochemical performance with exceptional specific capacity, outstanding rate capability and ultralong cyclability. As a result of the compatibility between organic components and the porous properties of metal organic frameworks (MOFs), the NSM electrode exhibits greater interfacial compatibility with PEO‐based solid‐state electrolytes. This work not only describes a meticulous protocol for heterostructured high‐performance electrode materials, but also provides a new insight to enhance the connectivity between the interfaces of solid‐state batteries.
Coactivation of Multiphase Reactants for the Electrosynthesis of Urea
Authors: Lv Zheng , Zhou Shuanglong , Zhao Liang , Liu Ziyi , Liu Jiaxin , Xu Wenxia , Wang Lei , Lai Jianping 
Published: May 2023

AbstractN2 and CO2 fixation is an environmentally friendly waste‐to‐energy technology that can replace tedious and demanding industrial urea productive processes. Here, VN‐Cu3N‐300 catalysts with tip and vacancy structures are designed for the coactivation of multiphase reactants in the urea electrosynthesis process. Under environmental conditions, the urea yield is 81 µg h−1 cm−2, this is the first report of high area active electrocatalyst, and the corresponding Faraday efficiency is able to reach 28.7%. The full‐cell electrolysis exhibits good stability, providing a current density of 0.7 mA cm−2 at 2.1 V. The electrolyte after continuous electrolysis for 48 h is subjected to being evaporated and recrystallized, and it is determined by 1H NMR that the purity of urea can reach 100%. Comprehensive analysis shows that the local electric field formed by the tip effect can effectively promote the adsorption and activation of CO2. The presence of surface nitrogen vacancies promotes the formation of *NN* intermediates, ensuring CN coupling, and also optimizing the dissociation process of water, providing a proton supply for the synthesis of urea. Thus, the rate‐determining step is altered and the formation of urea is ensured.
Comparison of frame index reference percentiles in Argentine and European boys and girls
Authors: Navazo Bárbara , Garraza Mariela , Torres María Fernanda , Dahinten Silvia Lucrecia , Quintero Fabián Aníbal , Cesani María Florencia 
Published: May 2023

AbstractIntroductionThe frame index (FI), based on measurements of elbow breadth and height, is the body frame size parameter most frequently used in child and adolescent populations to assess skeletal robustness. In 2018, the first FI reference percentiles were elaborated with data of boys and girls aged 0–18 years from different European populations. In Argentina, the FI reference values were published in 2022.ObjectiveThe present study aims to compare the Argentine (AR) and European (EU) FI reference percentiles to evaluate possible variation in bone robustness between populations.MethodsThe values of the 3rd, 50th and 97th percentiles of the AR and EU FI references for boys and girls aged 4–14 years were compared using the Wilcoxon test (p < .05). Percentage differences between means (PDM) were calculated to analyze the magnitude of the differences between both references. The R 3.2.0 program was used to plot the percentile curves.ResultsThe FI reference values were lower in AR than in EU in both the 3rd and the 50th percentiles, regardless of sex and age. Conversely, the AR reference values of the 97th percentile were higher than the EU values at most ages.ConclusionsThe comparison of the AR and EU FI references showed similar age and sex growth patterns. However, differences in percentile values between populations were observed, highlighting the importance of having local references for the evaluation of skeletal robustness.
Ethene‐1,1‐disulfonyl Difluoride (EDSF) for SuFEx Click Chemistry: Synthesis of SuFExable 1,1‐Bissulfonylfluoride Substituted Cyclobutene Hubs
Authors: Smedley Christopher J. , Giel Marie‐Claire , Fallon Thomas , Moses John E. 
Published: May 2023

AbstractWe present the synthesis of 1,1‐bis(fluorosulfonyl)‐2‐(pyridin‐1‐ium‐1‐yl)ethan‐1‐ide, a bench‐stable precursor to ethene‐1,1‐disulfonyl difluoride (EDSF). The novel SuFEx reagent, EDSF, is demonstrated in the preparation of 26 unique 1,1‐bissulfonylfluoride substituted cyclobutenes via a cycloaddition reaction. The regioselective click cycloaddition reaction is rapid, straightforward, and highly efficient, enabling the generation of highly functionalized 4‐membered ring (4MR) carbocycles. These carbocycles are valuable structural motifs found in numerous bioactive natural products and pharmaceutically relevant small molecules. Additionally, we showcase diversification of the novel cyclobutene cores through selective Cs2CO3‐activated SuFEx click chemistry between a single S−F group and an aryl alcohol, yielding the corresponding sulfonate ester products with high efficiency. Finally, density functional theory calculations offer mechanistic insights about the reaction pathway.
Effects of self‐assembled nucleating agent on the crystallization behavior, thermal properties, and mechanical properties of polylactic acid
Authors: Guo Xinyi , Luo Chunyan , Fang Minggang , Sun Jianxin , Chen Mingyuan 
Published: May 2023

AbstractPolylactic acid (PLA) is a biodegradable polyester, but its low crystallization rate and excessive embrittlement limit its application. Decanedioic acid 1,10‐bis (2‐benzoylhydrazide) (TMC‐300) as an effective nucleating agent of PLA will induce PLA epitaxial crystallization and improve the crystallization rate of PLA. This article studied the promoting behavior of TMC‐300 with different contents in composite systems on PLA crystallization. The results showed that with the increase of TMC‐300 content, the crystallinity can be significantly increased, up to 22 times, and t1/2 significantly decreases. Meanwhile, with the addition of TMC‐300, the typical spherical crystal morphology of PLA gradually became attached to TMC‐300 fibrous crystal morphology. In terms of mechanical properties, the tensile strength reached its maximum at 0.5 wt% of TMC‐300 content, increasing from 60.60 MPa (PLA) to 74.59 MPa (0.5‐TMC‐300), an increase of 23.09%. At this time, due to the reduction in spherical crystal size, the elongation at break also increased significantly. However, the thermal stability of PLA composites deteriorated with the increase of nucleating agent content due to the low thermal decomposition temperature of TMC‐300 itself, and the Tmax decreased from 372°C (PLA) to 353°C (5‐TMC‐300), a decrease of 19°C.
Accelerated Workflow for Antiperovskite‐based Solid State Electrolytes
Authors: Sjølin Benjamin H. , Jørgensen Peter B. , Fedrigucci Andrea , Vegge Tejs , Bhowmik Arghya , Castelli Ivano E. 
Published: May 2023

AbstractInvited for this month's cover picture is the group of Prof. Ivano E. Castelli. The cover picture shows a battery unfolding in its main components and the charge density, which is used to accelerate the estimation of the ionic mobility of the solid‐state electrolyte. Read the full text of the Research Article at 10.1002/batt.202300041.
A 3D paper microfluidic device for enzyme‐linked assays: Application to DNA analysis
Authors: Toldrà Anna , Chondrogiannis Georgios , Hamedi Mahiar M. 
Published: May 2023

AbstractA paper microfluidic device capable of conducting enzyme‐linked assays is presented: a microfluidic enzyme‐linked paper analytical device (μEL‐PAD). The system exploits a wash‐free sandwich coupling to form beads/analyte/enzyme complexes, which are subsequently added to the vertical flow device composed of wax‐printed paper, waxed nitrocellulose membrane and absorbent/barrier layers. The nitrocellulose retains the bead complexes without disrupting the flow, enabling for an efficient washing step. The entrapped complexes then interact with the chromogenic substrate stored on the detection paper, generating a color change on it, quantified with an open‐source smartphone software. This is a universal paper‐based technology suitable for high‐sensitivity quantification of many analytes, such as proteins or nucleic acids, with different enzyme‐linked formats. Here, the potential of the μEL‐PAD is demonstrated to detect DNA from Staphylococcus epidermidis. After generation of isothermally amplified genomic DNA from bacteria, Biotin/FITC‐labeled products were analyzed with the μEL‐PAD, exploiting streptavidin‐coated beads and antiFITC‐horseradish peroxidase. The μEL‐PAD achieved a limit of detection (LOD) and quantification <10 genome copies/μL, these being at least 70‐ and 1000‐fold lower, respectively, than a traditional lateral flow assay (LFA) exploiting immobilized streptavidin and antiFITC‐gold nanoparticles. It is envisaged that the device will be a good option for low‐cost, simple, quantitative, and sensitive paper‐based point‐of‐care testing.
KHC2O4·B(OH)3: A nonlinear optical crystal with large birefringence in the short‐wavelength ultraviolet region
Authors: Li Yang , Lee Jihyun , Ok Kang Min 
Published: May 2023

AbstractExploring nonlinear optical crystals with large birefringence in the short‐wavelength ultraviolet (SWUV) regions (≤300 nm) is a valuable pursuit. Herein, KHC2O4·B(OH)3, which is composed of infinite [HC2O4]− and [B(OH)3] chains, was successfully grown via the slow evaporation method. The [HC2O4]− and [B(OH)3] chains endow KHC2O4·B(OH)3 with the largest birefringence (0.164@1064 nm) of all B(OH)3‐containing compounds that have been reported in the SWUV regions. Moreover, it possesses a moderate second‐harmonic generation response (0.3 × KH2PO4) and a short UV cutoff edge of 254 nm. The electron localization function diagram indicates the large birefringence originates from the HC2O4 and B(OH)3 groups. This work provides a new method to investigate crystals with large birefringence in the B(OH)3‐based oxalate system.
Association of C‐reactive protein gene polymorphisms with the risk of ischemic stroke: A systematic review and meta‐analysis
Authors: Chen Wei , Zhu Xiaomin , Hu Yueqiang , Hong Huangzhong , Kuang Longjiao , Liang Ni , Zhu Jianmin , Jiang Lingfei , Wu Lin 
Published: May 2023

AbstractBackground and purposeThe heterogeneous, complex condition known as ischemic stroke (IS) is brought on by the interaction of a number of risk factors and genetic variables. The association between C‐reactive protein (CRP) gene polymorphisms and IS has, however, been the subject of inconsistent findings. Therefore, we conducted a meta‐analysis to comprehensively address possible associations of CRP genes with the risk of IS.MethodsA comprehensive literature search for all the published articles was performed in electronic databases including PubMed, EMBASE, Cochrane Library, and Google Scholar from January 1, 1950 to June 30, 2022. Odds ratio (OR) with 95% Confidence interval (CIs) along with fixed/random effect models were used to calculate summary estimates.ResultsTwelve case‐control studies totalling 3880 IS cases and 5233 controls were included for the association of CRP gene polymorphisms (rs1800947, rs1130864, rs3093059, rs2794521, and rs1205). Across all genotyping models, we discovered that rs1130864, rs3093059, rs2794521, and rs1205SNPs were not substantially related to IS risk. A trend for significant association for rs1800947 under dominant (OR = 1.19; 95% CI = 0.97 to 1.48), recessive (OR = 1.49; 95% CI = 0.71 to 3.14) and allelic model (OR = 1.21; 95% CI = 0.99 to 1.48) was observed. However, protective association for rs1130864 under dominant (OR = 0.80; 95% CI = 0.70 to 0.91) and rs3093059 under allelic model (OR = 0.18; 95% CI = 0.14 to 0.22) was found.ConclusionOur thorough study revealed that the CRP gene variants rs1800947, rs1130864, rs3093059, rs2794521, and rs1205 could not be related to the risk of ischemic stroke. However, additional research must focus on the rs1800947 polymorphisms in a particular group.
Does resource bricolage foster SMEs' competitive advantage and financial performance? A resource‐based perspective
Authors: Abid Nabila , Dowling Michael , Ceci Federica , Aftab Junaid 
Published: May 2023

AbstractSmall and medium‐sized enterprises (SMEs) in emerging economies strive to achieve and sustain their financial and competitive positions in a dynamic resource‐constrained environment. The concept of resource bricolage has received little attention in the literature on emerging economies. To fill this gap, we draw perspectives from the resource‐based view to examine the impact of resource bricolage on the competitive advantage and financial performance of SMEs in Pakistan. We argue that organizational innovativeness functions as a mediator in the relationship between resource bricolage, financial performance, and competitive advantage, while entrepreneurial orientation simultaneously moderates the relationship between resource bricolage and organizational innovativeness. We collected data from 398 SMEs in Pakistan and analyzed these relationships using the partial least squares method. Our results suggest that resource bricolage effectively promotes the financial performance of SMEs and helps them gain a competitive advantage. The relationship is mediated by organizational innovativeness, which accelerates financial performance and competitive advantage. Entrepreneurial orientation moderates the resource bricolage–organizational innovativeness relationship, but it is only effective when a high level of resource bricolage is in place. Our study suggests that SMEs operating under similar socioeconomic environments must efficiently focus on resources embedded in the firm and utilize them to achieve competitive advantage and enhance financial performance. Our study highlights the critical need for research on organizational innovativeness in emerging contexts and proposes significant theoretical and managerial implications.
Genetically engineered neural stem cells (NSCs) therapy for neurological diseases; state‐of‐the‐art
Authors: Lutfi Ismaeel Ghufran , Makki AlHassani Olfet Jabbar , S. Alazragi Reem , Hussein Ahmed Ammar , H. Mohamed Asma'a , Yasir Jasim Nisreen , Hassan Shari Falah , Almashhadani Haider Abdulkareem 
Published: May 2023

AbstractNeural stem cells (NSCs) are multipotent stem cells with remarkable self‐renewal potential and also unique competencies to differentiate into neurons, astrocytes, and oligodendrocytes (ODCs) and improve the cellular microenvironment. In addition, NSCs secret diversity of mediators, including neurotrophic factors (e.g., BDNF, NGF, GDNF, CNTF, and NT‐3), pro‐angiogenic mediators (e.g., FGF‐2 and VEGF), and anti‐inflammatory biomolecules. Thereby, NSCs transplantation has become a reasonable and effective treatment for various neurodegenerative disorders by their capacity to induce neurogenesis and vasculogenesis and dampen neuroinflammation and oxidative stress. Nonetheless, various drawbacks such as lower migration and survival and less differential capacity to a particular cell lineage concerning the disease pathogenesis hinder their application. Thus, genetic engineering of NSCs before transplantation is recently regarded as an innovative strategy to bypass these hurdles. Indeed, genetically modified NSCs could bring about more favored therapeutic influences post‐transplantation in vivo, making them an excellent option for neurological disease therapy. This review for the first time offers a comprehensive review of the therapeutic capability of genetically modified NSCs rather than naïve NSCs in neurological disease beyond brain tumors and sheds light on the recent progress and prospect in this context.
Overexpression of RAB31 in gastric cancer is associated with released exosomes and increased tumor cell invasion and metastasis
Authors: Wu Shan , Tang Chaotao , Zhang Qing‐wei , Zhuang Qian , Ye Xin , Xia Jie , Shi Yan , Ning Min , Dong Zhi‐xia , Wan Xin‐jian 
Published: May 2023

AbstractBackgroundGastric cancer (GC) is one of most common cancers worldwide. Several studies have suggested that Rab31 functions as a membrane vesicle transport regulator; however, the mechanism by which RAB31 regulates exosome secretion and promotes metastasis remains to be clarified.MethodsWe examined the expression of RAB31 protein and mRNA in GC tissue samples via immunohistochemistry and reverse transcription‐polymerase chain reaction assays, respectively. We elucidated the function of RAB31 in GC cells by constructing a cell model and a pulmonary metastatic model of GC with overexpression of RAB31. Protein mass spectrometry was used to identify the exosomal protein.ResultsRAB31 expression increased at both the protein and mRNA levels with the development of GC. Cells overexpressing RAB31 showed an enhanced ability to migrate in both the in vitro cell model and the pulmonary metastatic model of GC. Exosome nanoparticle tracking analysis and electron microscopy revealed that the both the number and size of the exosomes secreted by GC cells were reduced when RAB31 expression was depleted. Injection of exosomes derived from RAB31 overexpressing cells promoted pulmonary metastasis in vivo. Analysis of the exosomal proteins revealed that PSMA1 was overexpressed in GC tissue in accordance with RAB31 expression. PSMA1 overexpression was highly associated with poor prognosis of GC patients.ConclusionOur findings revealed a key role for RAB31 in GC metastasis through regulation of exosome secretion.
Constraint‐based multi‐agent reinforcement learning for collaborative tasks
Authors: Shang Xiumin , Xu Tengyu , Karamouzas Ioannis , Kallmann Marcelo 
Published: May 2023

AbstractIn order to be successfully executed, collaborative tasks performed by two agents often require a cooperative strategy to be learned. In this work, we propose a constraint‐based multi‐agent reinforcement learning approach called constrained multi‐agent soft actor critic (C‐MSAC) to train control policies for simulated agents performing collaborative multi‐phase tasks. Given a task with phases, the first phases are treated as constraints for the final task phase objective, which is addressed with a centralized training and decentralized execution approach. We highlight our framework on a tray balancing task including two phases: tray lifting and cooperative tray control for target following. We evaluate our proposed approach and compare it against its unconstrained variant (MSAC). The performed comparisons show that C‐MSAC leads to higher success rates, more robust control policies, and better generalization performance.