bluuebunny/crossref_metadata_2025_split huggingface dataset:
Metallic 4D Printing of Laser Stimulation
Authors: Wu Wenzheng , Zhou Yiming , Liu Qingping , Ren Luquan , Chen Fan , Fuh Jerry Ying Hsi , Zheng Aodu , Li Xuechao , Zhao Ji , Li Guiwei 
Published: January 2023

Abstract4D printing of metallic shape‐morphing systems can be applied in many fields, including aerospace, smart manufacturing, naval equipment, and biomedical engineering. The existing forming materials for metallic 4D printing are still very limited except shape memory alloys. Herein, a 4D printing method to endow non‐shape‐memory metallic materials with active properties is presented, which could overcome the shape‐forming limitation of traditional material processing technologies. The thermal stress spatial control of 316L stainless steel forming parts is achieved by programming the processing parameters during a laser powder bed fusion (LPBF) process. The printed parts can realize the shape changing of selected areas during or after forming process owing to stress release generated. It is demonstrated that complex metallic shape‐morphing structures can be manufactured by this method. The principles of printing parameters programmed and thermal stress pre‐set are also applicable to other thermoforming materials and additive manufacturing processes, which can expand not only the materials used for 4D printing but also the applications of 4D printing technologies.
Synergistic Structure and Iron‐Vacancy Engineering Realizing High Initial Coulombic Efficiency and Kinetically Accelerated Lithium Storage in Lithium Iron Oxide
Authors: Wu Naiteng , Shen Jinke , Yong Kai , Chen Chengqian , Li Jian , Xie Yi , Guo Donglei , Liu Guilong , Li Jin , Cao Ang , Liu Xianming , Mi Hongyu , Wu Hao 
Published: January 2023

AbstractTransition metal oxides with high capacity still confront the challenges of low initial coulombic efficiency (ICE, generally <70%) and inferior cyclic stability for practical lithium‐storage. Herein, a hollow slender carambola‐like Li0.43FeO1.51 with Fe vacancies is proposed by a facile reaction of Fe3+‐containing metal–organic frameworks with Li2CO3. Synthesis experiments combined with synchrotron‐radiation X‐ray measurements identify that the hollow structure is caused by Li2CO3 erosion, while the formation of Fe vacancies is resulted from insufficient lithiation process with reduced Li2CO3 dosage. The optimized lithium iron oxides exhibit remarkably improved ICE (from 68.24% to 86.78%), high‐rate performance (357 mAh g−1 at 5 A g−1), and superior cycling stability (884 mAh g−1 after 500 cycles at 0.5 A g−1). Paring with LiFePO4 cathodes, the full‐cells achieve extraordinary cyclic stability with 99.3% retention after 100 cycles. The improved electrochemical performances can be attributed to the synergy of structural characteristics and Fe vacancy engineering. The unique hollow structure alleviates the volume expansion of Li0.43FeO1.51, while the in situ generated Fe vacancies are powerful for modulating electronic structure with boosted Li+ transport rate and catalyze more Li2O decomposition to react with Fe in the first charge process, hence enhancing the ICE of lithium iron oxide anode materials.
Van der Waals Heterostructures With Built‐In Mie Resonances For Polarization‐Sensitive Photodetection
Authors: Yan Jiahao , Yang Xinzhu , Liu Xinyue , Du Chun , Qin Fei , Yang Mengmeng , Zheng Zhaoqiang , Li Jingbo 
Published: January 2023

AbstractFew‐layer transition metal dichalcogenides (TMDs) and their combination as van der Waals heterostructures provide a promising platform for high‐performance optoelectronic devices. However, the ultrathin thickness of TMD flakes limits efficient light trapping and absorption, which triggers the hybrid construction with optical resonant cavities for enhanced light absorption. The optical structure enriched photodetectors can also be wavelength‐ and polarization‐sensitive but require complicated fabrication. Herein, a new‐type TMD‐based photodetector embedded with nanoslits is proposed to enhance light trapping. Taking ReS2 as an example, strong anisotropic Mie‐type optical responses arising from the intrinsic in‐plane anisotropy and nanoslit‐enhanced anisotropy are discovered. Owing to the nanoslit‐enhanced optical resonances and band engineering, excellent photodetection performances are demonstrated with high responsivity of 27 A W−1 and short rise/decay times of 3.7/3.7 ms. More importantly, through controlling the angle between the nanoslit orientation and the polarization direction to excite different resonant modes, polarization‐sensitive photodetectors with anisotropy ratios from 5.9 to 12.6 can be achieved, representing one of the most polarization‐sensitive TMD‐based photodetectors. The depth and orientation of nanoslits are demonstrated crucial for optimizing the anisotropy ratio. The findings bring an effective scheme to construct high‐performance and polarization‐sensitive photodetectors.
Grain Boundary‐Rich Copper Nanocatalysts Generated from Metal‐Organic Framework Nanoparticles for CO2‐to‐C2+ Electroconversion
Authors: Kim Sungjoo , Shin Dongwoo , Park Jonghyeok , Jung Jong‐Yeong , Song Hyunjoon 
Published: January 2023

AbstractDue to severe contemporary energy issues, generating C2+ products from electrochemical carbon dioxide reduction reactions (eCO2RRs) gains much interest. It is known that the catalyst morphology and active surface structures are critical for product distributions and current densities. Herein, a synthetic protocol of nanoparticle morphology on copper metal‐organic frameworks (n‐Cu MOFs) is developed by adjusting growth kinetics with termination ligands. Nanoscale copper oxide aggregates composed of small particulates are yielded via calcining the Cu‐MOF nanoparticles at a specific temperature. The resulting nanosized MOF‐derived catalyst (n‐MDC) exhibits Faradaic efficiencies toward ethylene and C2+ products of 63% and 81% at −1.01 V versus reversible hydrogen electrode (RHE) in neutral electrolytes. The catalyst also shows prolonged stability for up to 10 h. A partial current density toward C2+ products is significantly boosted to −255 mA cm−2 in an alkaline flow cell system. Comprehensive analyses reveal that the nanoparticle morphology of pristine Cu MOFs induces homogeneous decomposition of organic frameworks at a lower calcination temperature. It leads to evolving grain boundaries in a high density and preventing severe agglomeration of copper domains, the primary factors for improving eCO2RR activity toward C2+ production.
Complement‐driven hemolytic uremic syndrome
Authors: Leon Juliette , LeStang Marie‐Bénédicte , Sberro‐Soussan Rebecca , Servais Aude , Anglicheau Dany , Frémeaux‐Bacchi Véronique , Zuber Julien 
Published: January 2023

AbstractOveractivation of the complement alternative pathway drives the pathogenesis of primary atypical hemolytic uremic syndrome (aHUS). Genetically‐determined or acquired dysregulation of the complement is frequently identified in patients with aHUS, pregnancy‐related hemolytic uremic syndrome (HUS), and severe hypertension‐associated HUS. In contrast, it is still unclear whether self‐limited complement activation, which frequently occurs in other forms of HUS, provides key mechanistic clues or results from endothelial damage. Development of novel biomarkers is underway to firmly establish complement‐driven pathogenesis. C5 blockade therapy has revolutionized the management of aHUS patients, resulting in a halving of the subpopulation under chronic dialysis over the course of a few years. On the other hand, the efficacy of C5 blockade in secondary forms of HUS, as assessed by small and uncontrolled case series, is less compelling and should be investigated through properly designed prospective clinical trials. The increased risk of meningococcal infection, related to C5 inhibition, must be rigorously addressed with suitable prophylaxis. Treatment duration should be determined based on an individualized benefit/risk assessment.
A Forward Vision for Chemodynamic Therapy: Issues and Opportunities
Authors: Zhao Peiran , Li Huiyan , Bu Wenbo 
Published: January 2023

AbstractSince the insight to fuse Fenton chemistry and nanomedicine into cancer therapy, great signs of progress have been made in the field of chemodynamic therapy (CDT). However, the exact mechanism of CDT is obscured by the unique tumor chemical environment and inevitable nanoparticle‐cell interactions, thus impeding further development. In this Scientific Perspective, the significance of CDT is clarified, the complex mechanism is deconstructed into primitive chemical and biological interactions, and the mechanism research directions based on the chemical kinetics and biological signaling pathways are discussed in detail. Moreover, beneficial outlooks are presented to enlighten the evolution of next‐generation CDT. Hopefully, this Scientific Perspective can inspire new ideas and advances for CDT and provide a reference for breaking down the interdisciplinary barriers in the field of nanomedicine.
Manganese(II)‐Guided Separation in the Sub‐Nanometer Regime for Precise Identification of In Vivo Size Dependence
Authors: Cai Wei , Tan Yue , He Kui , Tang Bing , Liu Jinbin 
Published: January 2023

AbstractA precise understanding of nano‐bio interactions in the sub‐nanometer regime is necessary for advancements in nanomedicine. However, this is currently hindered by the control of the nanoparticle size in the sub‐nanometer regime. Herein, we report a facile in situ Mn2+‐guided centrifugation strategy for the synthesis of large‐scale ultrasmall gold nanoparticles (AuNPs) with a precisely controlled size gradient at the sub‐nanometer regime. With the discovery that [Mn(OH)]+, especially metallic manganese (Mn0@[Mn(OH)]+) nanoparticles, could selectively interact with larger AuNPs through synergistic coordination and hydrogen bonding to form aggregates, we also realized the fast (<1 h) synthesis of water‐soluble atomically precise Au25 with high yields (>56 %). We further demonstrated that sub‐nanometer size differences (approximately 0.5 nm) significantly alter non‐specific phagocytosis of AuNPs in the reticuloendothelial system macrophages, elimination rate, and nanotoxicology.
Molecular Lanthanide Switches for Magnetism and Photoluminescence
Authors: Münzfeld Luca , Dahlen Milena , Hauser Adrian , Mahieu Nolwenn , Kuppusamy Senthil Kumar , Moutet Jules , Tricoire Maxime , Köppe Ralf , La Droitte Léo , Cador Olivier , Le Guennic Boris , Nocton Grégory , Moreno‐Pineda Eufemio , Ruben Mario , Roesky Peter W. 
Published: January 2023

AbstractSolvation of [(CNT)Ln(η8‐COT)] (Ln=La, Ce, Nd, Tb, Er; CNT=cyclononatetraenyl, i.e., C9H9−; COT=cyclooctatetraendiid, i.e., C8H82−) complexes with tetrahydrofuran (THF) gives rise to neutral [(η4‐CNT)Ln(thf)2(η8‐COT)] (Ln=La, Ce) and ionic [Ln(thf)x(η8‐COT)][CNT] (x=4 (Ce, Nd, Tb), 3 (Er)) species in a solid‐to‐solid transformation. Due to the severe distortion of the ligand sphere upon solvation, these species act as switchable luminophores and single‐molecule magnets. The desolvation of the coordinated solvents can be triggered by applying a dynamic vacuum, as well as a temperature gradient stimulus. Raman spectroscopic investigations revealed fast and fully reversible solvation and desolvation processes. Moreover, we also show that a Nd:YAG laser can induce the necessary temperature gradient for a self‐sufficient switching process of the Ce(III) analogue in a spatially resolved manner.
Dynamic Reconfigurable DNA Nanostructures, Networks and Materials
Authors: Wang Jianbang , Li Zhenzhen , Willner Itamar 
Published: January 2023

AbstractDNA nanotechnology relies on the structural and functional information encoded in nucleic acids. Specifically, the sequence‐guided reconfiguration of nucleic acids by auxiliary triggers provides a means to develop DNA switches, machines and stimuli‐responsive materials. The present Review addresses recent advances in the construction and applications of dynamic reconfigurable DNA nanostructures, networks and materials. Dynamic transformations proceeding within engineered origami frames or between origami tiles, and the triggered dynamic reconfiguration of scaled supramolecular origami structures are addressed. The use of origami frameworks to assemble dynamic chiroplasmonic optical devices and to operate switchable chemical processes are discussed. Also, the dynamic operation of DNA networks is addressed, and the design of “smart” stimuli‐responsive all‐DNA materials and their applications are introduced. Future perspectives and applications of dynamic reconfigurable DNA nanostructures are presented.
Direct Monitoring of Li2S2 Evolution and Its Influence on the Reversible Capacities of Lithium‐Sulfur Batteries
Authors: Luo Yufeng , Fang Zhenhan , Duan Shaorong , Wu Hengcai , Liu Haitao , Zhao Yuxing , Wang Ke , Li Qunqing , Fan Shoushan , Zheng Zijian , Duan Wenhui , Zhang Yuegang , Wang Jiaping 
Published: January 2023

AbstractThe polysulfide (PS) dissolution and low conductivity of lithium sulfides (Li2S) are generally considered the main reasons for limiting the reversible capacity of the lithium‐sulfur (Li‐S) system. However, as the inevitable intermediate between PSs and Li2S, lithium disulfide (Li2S2) evolutions are always overlooked. Herein, Li2S2 evolutions are monitored from the operando measurements on the pouch cell level. Results indicate that Li2S2 undergoes slow electrochemical reduction and chemical disproportionation simultaneously during the discharging process, leading to further PS dissolution and Li2S generation without capacity contribution. Compared with the fully oxidized Li2S, Li2S2 still residues at the end of the charging state. Therefore, instead of the considered Li2S and PSs, slow electrochemical conversions and side chemical reactions of Li2S2 are the determining factors in limiting the sulfur utilization, corresponding to the poor reversible capacity of Li‐S batteries.
Boron‐Thioketonates: A New Class of S,O‐Chelated Boranes as Acceptors in Optoelectronic Devices
Authors: Murali Anna Chandrasekar , Nayak Prakash , Nayak Shashwat , Das Sabyasachi , Senanayak Satyaprasad P. , Venkatasubbaiah Krishnan 
Published: January 2023

AbstractDevelopment of new n‐type semiconductors with tunable band gap and dielectric constant has significant implication in dissociating bound charge carrier relevant for demonstrating high performance optoelectronic devices. Boron‐β‐thioketonates (MTDKB), analogues to boron‐β‐diketonates containing a sulfur atom in the framework of β‐diketones were synthesized. Bulk transport measurement exhibited an outstanding bulk electron mobility of ≈0.003 cm2 V−1 s−1, which is among the best values reported till date in these class of semiconducting materials and correspondingly a single junction photo responsivity of upto 6 mA W−1 was obtained. This new family of O,S‐chelated boron compounds exhibited luminescence in the far red/near‐infrared region. The remarkable red shift of 89 nm (fluorescence) observed for 4 a in comparison with analogues boron‐β‐diketonate signifies the importance of sulfur in these molecules. MTDKBs with amine functionality have also been investigated as an ON/OFF fluorescent sensor.
Imidazolium organometallic complex of palladium on Fe3O4 nanoparticles as selective and magnetically recoverable nanocatalyst for C‐C cross‐coupling reactions
Authors: Nouri Kheirollah , Ghassemzadeh Mitra , Mohsenzadeh Farshid , Afsharpour Maryam 
Published: January 2023

The synthesis of an efficient heterogeneous nanocatalyst was prepared by the anchoring of palladium complex on the surface of an imidazolium‐based ionic liquid‐functionalized Fe3O4 (Pd‐imidazolium@Fe3O4 NPs). The nanocatalyst, Pd‐imidazolium@Fe3O4 NPs, was characterized by Raman, X‐ray diffraction (XRD), thermogravimetric analysis (TGA), transmission electron microscopy (TEM), scanning electron microscopy (SEM), energy‐dispersive X‐ray spectroscopy (EDX), fourier transform infrared (FT‐IR), inductively coupled plasma (ICP), and vibrating sample magnetometer (VSM) techniques. The catalytic performance of this novel nanocatalyst was evaluated in the Heck––Mizoroki and Suzuki–Miyaura cross‐coupling reactions under mild conditions using PEG‐400 as a green and biodegradable solvent. The nanocatalyst exhibited high catalytic activity for both cross‐coupling reactions. Furthermore, this stable nanocatalyst can be easily removed and recovered from the reaction mixture and reused for at least eight consecutive cycles without a discernible decrease in the catalytic activity. Also, the recovered Pd‐imidazolium@Fe3O4 NPs was characterized by FT‐IR, XRD, scanning electron microscopy, energy‐dispersive X‐ray spectroscopy, and atomic absorption spectroscopy techniques.
Regioselective Direct C−H Phosphorylation of Benzofulvenes
Authors: Hore Soumyadip , Singh Abhijeet , Singh Ravi P. 
Published: January 2023

AbstractA practical and straightforward protocol to access site‐selective C‐3 phosphorylated benzofulvenes by means of cross‐dehydrogenative coupling of two nucleophilic moieties, employing silver as a promoter, is described here. Remarkably, this protocol provides a broad, structurally diverse phosphorylated benzofulvene. Initial mechanistic studies shed light on its radical coupling nature, and late‐stage transformations offer highly diversified benzofulvenes core.
Covalent Organic Frameworks as Emerging Battery Materials
Authors: Wang Zhiqiang , Hu Jing , Lu Zhouguang 
Published: January 2023

AbstractCovalent organic frameworks (COFs) are emerging as promising energy storage materials due to their unique characteristics, such as adjustable thickness, designable topology, superior stability and controllable pore size distribution. Consequently, COFs can provide diversified high‐rate carrier transport pathways, and the performance of COFs can be easily improved by adjusting conjugated skeleton types, overlapping p‐electron clouds between stacks, and modifying open channels with functional groups. The state‐of‐the‐art COFs electrode materials based on synthetic method and electrochemical performance in recent years are summarized and discussed in this review. The synthesis method, topological structure and application in metal ion (such as Li+, Na+, K+, Zn2+, Mg2+, Al3+, et. al) batteries of COFs electrodes are critically accounted. Finally, we briefly discuss the major challenges in the field that needs to be addressed to pave the way for industrial applications. Although there are still many arduous tasks to be tackled, the burgeoning of COFs‐related technologies and applications in batteries provide a ponderable field for commercial process in the short run.
Robotic‐assisted versus laparoscopic nephroureterectomy; a systematic review and meta‐analysis
Authors: O'Sullivan Niall J. , Naughton Ailish , Temperley Hugo C. , Casey Rowan G. 
Published: January 2023

AbstractBackgroundUpper tract urothelial carcinoma (UTUC) is the malignant transformation of urothelial cells, from the renal calyces to the ureteral orifices. While the benefits of minimally invasive nephroureterectomy over their open counterpart have been established, the optimal technique remains a debate. We aimed to assess current evidence in the literature and compare outcomes between robotic‐assisted (RANU) and laparoscopic nephroureterectomy (LNU).MethodsA systematic review of the literature was performed for studies comparing RANU and LNU for bladder cancer. Outcome measurements were recurrence rates (local and distal), positive margins, positive lymph node yield and perioperative outcomes. Meta‐analysis was performed using Review Manager 5.ResultsOur results demonstrate a significantly higher mortality rate in patients undergoing laparoscopic nephroureterectomy when compared with the robotic‐assisted approach for the treatment of UTUC (1.8% vs. 1.1%, p = 0.008); however, these results were inconsistent on sensitivity analysis and should therefore be interpreted with caution. No significant difference was observed for other outcomes.ConclusionThe ideal approach to minimally invasive radical nephroureterectomy remains undetermined. Future research, ideally prospective randomised studies, should focus on long‐term outcomes, in particular recurrence, recurrence‐free survival, overall survival and the correlation between surgical technique and survival.
Development and validation of a dried plasma spot LC–MS/MS method for therapeutic monitoring of vancomycin and comparison with enzyme‐multiplied immunoassay
Authors: Vidal Fernanda Ribeiro , Ossanes Daniela Souza , Birk Letícia , Scheid Camila , Barbosa Fábio Souza , Dallegrave Eliane , Merib Josias , Eller Sarah , de Oliveira Tiago Franco 
Published: January 2023

AbstractVancomycin is used as an antimicrobial agent for the treatment of severe gram‐positive infections. The importance of therapeutic monitoring of antimicrobials has led to the development of more specific sample preparation techniques capable of identifying with accuracy the concentration of this substance in the organism. An aliquot of 10 μl of plasma was transferred to Whatman 903 paper and dried at room temperature. The extraction method was performed by cutting and transferring the paper to a microtube and adding sodium phosphate buffer and internal standard. The mixture was shaken and centrifuged, and a 5‐μl aliquot was injected into the analytical system. The optimization of the main parameters that can influence the extraction efficiency was performed using multivariate approaches to obtain the best conditions. The method developed was validated, providing coefficients of determination higher than 0.994 and a lower limit of quantification of 1 mg/L. Within‐ and between‐run precision ranged from 11.4 to 17.30% and from 6.65 to 13.51%, respectively. This method was successfully applied to 75 samples of patients undergoing vancomycin therapy. The method was rapid, simple, and environmentally friendly with satisfactory analytical performance and was advantageous over the laborious and time‐consuming methodologies used in therapeutic drug monitoring routine analyses.