bluuebunny/crossref_metadata_2025_split huggingface dataset:
Strategic leaders' ecosystem vision formation and digital transformation: A motivated interactional lens
Authors: Reuter Emmanuelle , Floyd Steven 
Published: December 2023

AbstractResearch SummaryThe question of why and how strategic leaders differ in the ecosystems they envision is central to firms' digital transformation. We unpack the cognitive microfoundations of how strategic leaders form their ecosystem vision—a mental model of a firm's multilateral complementarities with its partners to realize a value proposition. Our motivated interactional lens emphasizes the role of strategic leaders' cognitive motivation for shaping four interaction types with (prospective) partners: participatory, selective, collaborative, and reclusive. We theorize how these interactions shape the changes strategic leaders make in their mental models, and thus, to envision different levels and types of complementarities with (prospective) partners in the digital transformation. Our theory illuminates the roles of strategic leaders, their cognitive motivations, and social interactions in firms' ecosystem leadership.Managerial SummaryDigital transformation is an ecosystem challenge for incumbent firms. As part of their ecosystem leadership, strategic leaders need to form a vision of how to complement their value offerings with (prospective) partners' offerings. This vision, in turn, can affect the types of ecosystems they enact. We develop a theoretical model that emphasizes the role of strategic leaders' cognitive motivation for the interactions they engage in with (prospective) partners and for the types of ecosystem visions they form as a result.
Switching Electric Double Layer Potential by Phase Structure Control for Advanced Oxygen Reduction Reaction of Cobalt@Nitrogen Doped Carbon Core–Shell
Authors: Kim Seonghee , Ji Seulgi , Jeong Soyoon , Yang Hyeonsu , Lee Sungho , Choi Heechae , Li Oi Lun 
Published: December 2023

AbstractThe key to design an advanced oxygen reduction reaction (ORR) electrocatalyst is a well‐balance between the adsorption and desorption of oxygen intermediates. This study systematically evaluated the ORR activity of HCP and FCC cobalt core–shell cobalt/N‐doped carbon (Cobalt@NC) catalyst via theoretical and experimental studies. The electronic structure calculations using density functional theory (DFT) calculations revealed that the ORR activity of carbon layer can be improved by 1) switching the electrostatic potential in the electrical double layer due to the polarization induced at the carbon–cobalt interface and 2) modulating the electron population in the bonding orbital in the C–O bonds in an ORR. The results revealed that an O atom is bounded stronger to the outer NC shell with FCC Cobalt than HCP Cobalt, which hindered the desorption steps of OH*. Experimentally, plasma‐engineered HCP Cobalt@NC also showed remarkably advanced performance toward ORR compared to that FCC Cobalt@NC. The kinetic current density of HCP Cobalt@NC at 0.85 V versus RHE is calculated as 6.24 mA cm−2, which is six folds higher than FCC Cobalt@NC and even outperform 20 wt.% Pt/C. In a practical Aluminium‐air battery, HCP Cobalt@NC also exhibited slightly higher peak power density (110.57 mW cm−2) compared to 20 wt.% Pt/C.
[Ru(dpp)3]Cl2‐Embedded Oxygen Nano Polymeric Sensors: A Promising Tool for Monitoring Intracellular and Intratumoral Oxygen Gradients with High Quantum Yield and Long Lifetime
Authors: Kumar Ashish , Goudar Venkanagouda S. , Nahak Bishal Kumar , Tsai Ping‐Hsun , Lin Hao‐Wu , Tseng Fan‐Gang 
Published: December 2023

AbstractUnraveling the intricacies between oxygen dynamics and cellular processes in the tumor microenvironment (TME) hinges upon precise monitoring of intracellular and intratumoral oxygen levels, which holds paramount significance. The majority of these reported oxygen nanoprobes suffer compromised lifetime and quantum yield when exposed to the robust ROS activities prevalent in TME, limiting their prolonged in vitro usability. Herein, the ruthenium‐embedded oxygen nano polymeric sensor (Ru‐ONPS) is proposed for precise oxygen gradient monitoring within the cellular environment and TME. Ru‐ONPS (≈64±7 nm) incorporates [Ru(dpp)3]Cl2 dye into F‐127 and crosslinks it with urea and paraformaldehyde, ensuring a prolonged lifetime (5.4 µs), high quantum yield (66.65 ± 2.43% in N2 and 49.80 ± 3.14% in O2), superior photostability (>30 min), and excellent stability in diverse environmental conditions. Based on the Stern–Volmer plot, the Ru‐ONPS shows complete linearity for a wide dynamic range (0–23 mg L−1), with a detection limit of 10 µg mL−1. Confocal imaging reveals Ru‐ONPS cellular uptake and intratumoral distribution. After 72 h, HCT‐8 cells show 5.20±1.03% oxygen levels, while NIH3T3 cells have 7.07±1.90%. Co‐culture spheroids display declining oxygen levels of 17.90±0.88%, 10.90±0.88%, and 5.10±1.18%, at 48, 120, and 216 h, respectively. Ru‐ONPS advances cellular oxygen measurement and facilitates hypoxia‐dependent metastatic research and therapeutic target identification.
Multifunctional Carbon Fiber Reinforced C/SiOC Aerogel Composites for Efficient Electromagnetic Wave Absorption, Thermal Insulation, and Flame Retardancy
Authors: Yang Dongdong , Dong Shun , Cui Tangyin , Xin Jianqiang , Xu Xiaojing , Chen Jingmao , Xie Yongshuai , Chen Guiqing , Hong Changqing , Zhang Xinghong 
Published: December 2023

AbstractCarbon fiber composites have great application prospects as a potential electromagnetic (EM) wave‐absorbing material, yet it remains extremely challenging to integrate multiple functions of EM wave absorption, mechanical strength, thermal insulation, and flame retardancy. Herein, a novel carbon fiber reinforced C/SiOC aerogel (CF/CS) composite is successfully prepared by sol‐gel impregnation combined with an ambient drying process for the first time. The density of the obtained CF/CS composites can be controlled just by changing sol‐gel impregnation cycles (original carbon fiber felt (S0), and samples with one (S1) and two (S2) impregnation cycles are 0.249, 0.324, and 0.402 g cm−3, respectively), allowing for efficient tuning of their properties. Remarkably, S2 displays excellent microwave absorption properties, with an optimal reflection loss of ‐65.45 dB, which is significantly improved than S0 (‐10.90 dB). Simultaneously, compared with S0 (0.75 and 0.30 MPa in the x/y and z directions), the mechanical performance of S2 is dramatically improved with a maximum compressive strength of 10.37 and 4.93 MPa in the x/y and z directions, respectively. Moreover, CF/CS composites show superior thermal insulation capability than S0 and obtain good flame‐retardant properties. This work provides valuable guidance and inspiration for the development of multifunctional EM wave absorbers.
In Situ Fast Construction of Ni3S4/FeS Catalysts on 3D Foam Structure Achieving Stable Large‐Current‐Density Water Oxidation
Authors: Tan Pingping , Wu Yuanke , Tan Yangyang , Xiang Yang , Zhou Liyuan , Han Ning , Jiang Yinzhu , Bao Shu‐Juan , Zhang Xuan 
Published: December 2023

AbstractBy increasing the content of Ni3+, the catalytic activity of nickel‐based catalysts for the oxygen evolution reaction (OER), which is still problematic with current synthesis routes, can be increased. Herein, a Ni3+‐rich of Ni3S4/FeS on FeNi Foam (Ni3S4/FeS@FNF) via anodic electrodeposition to direct obtain high valence metal ions for OER catalyst is presented. XPS showed that the introduction of Fe not only further increased the Ni3+ concentration in Ni3S4/FeS to 95.02%, but also inhibited the dissolution of NiOOH by up to seven times. Furthermore, the OER kinetics is enhanced by the combination of the inner Ni3S4/FeS heterostructures and the electrochemically induced surface layers of oxides/hydroxides. Ni3S4/FeS@FNF shows the most excellent OER activity with a low Tafel slope of 11.2 mV dec−1 and overpotentials of 196 and 445 mV at current densities of 10 and 1400 mA cm−2, respectively. Furthermore, the Ni3S4/FeS@FNF catalyst can be operated stably at 1500 mA cm−2 for 200 h without significant performance degradation. In conclusion, this work has significantly increased the high activity Ni3+ content in nickel‐based OER electrocatalysts through an anodic electrodeposition strategy. The preparation process is time‐saving and mature, which is expected to be applied in large‐scale industrialization.
Fabrication of Carboxylate‐Functionalized 2D MOF Nanosheet with Caged Cavity for Efficient and Selective Extraction of Uranium from Aqueous Solution
Authors: Yu Cai‐Xia , Jiang Wen , Lei Min , Yao Meng‐Ru , Sun Xue‐Qin , Wang Yanlong , Liu Wei , Liu Lei‐Lei 
Published: December 2023

AbstractThe efficient removal of radioactive uranium from aqueous solution is of great significance for the safe and sustainable development of nuclear power. An ultrathin 2D metal–organic framework (MOF) nanosheet with cavity structures was elaborately fabricated based on a calix[4]arene ligand. Incorporating the permanent cavity structures on MOF nanosheet can fully utilize its structural characteristics of largely exposed surface area and accessible adsorption sites in pollutant removal, achieving ultrafast adsorption kinetics, and the functionalized cavity structure would endow the MOF nanosheets with the ability to achieve preconcentration and extraction of uranium from aqueous solution, affording ultrahigh removal efficiency even in ultra‐low concentrations. Thus, more than 97% uranium can be removed from the concentration range of 50–500 µg L−1 within 5 min. Moreover, the 2D nano‐material exhibits ultra‐high anti‐interference ability, which can efficiently remove uranium from groundwater and seawater. The adsorption mechanism was investigated by X‐ray photoelectron spectroscopy (XPS), Fourier transform infrared (FT‐IR) analysis, and density functional theory (DFT) calculations, which revealed that the cavity structure plays an important role in uranium capture. This study not only realizes highly efficient uranium removal from aqueous solution but also opens the door to achieving ultrathin MOF nanosheets with cavity structures, which will greatly expand the applications of MOF nanosheets.
In Situ Pt Migration Enabled Resurrection of Electrocatalyst and Fuel Cell Device
Authors: Lei Hao , Cui Mangwei , Cao Jian , Li Kaikai , Chen Zuhuang , Sun Ligang , Huang Yan 
Published: December 2023

AbstractIn direct methanol fuel cells (DMFCs), the poisoning of noble metals is considered to be a major impediment to their commercial development. Here, it is found that the loss of surface Pt is one main reason for the attenuation of catalyst performance during long‐time methanol oxidation reaction (MOR). A strategy to realize in situ resurrection of the deactivated catalyst by migrating Pt atoms inside to the surface is innovatively proposed. A high‐activity Pt‐SnO2 is designed, whose MOR activity is resurrected to 97.4% of the initial value. Based on this, the multiple resurrection of a DMFC device is also achieved for the first time. This work provides a new approach for the solution of catalyst deactivation and the development of sustainable catalysts as well as fuel cells.
Biodegradable and Efficient Charge‐Migrated Z‐Scheme Heterojunction Amplifies Cancer Ferroptosis by Blocking Defensive Redox System
Authors: Liu Yuanqi , Yi Yunfei , Sun Shengjie , Wang Tianqi , Tang Jia , Peng Zhangwen , Huang Wenxin , Zeng Weiwei , Wu Meiying 
Published: December 2023

AbstractFerroptosis is an emerging non‐apoptotic death process, mainly involving lipid peroxidation (LPO) caused by iron accumulation, which is potentially lethal to the intrinsically apoptotic‐resistant malignant tumor. However, it is still restricted by the inherent antioxidant systems of tumor cells and the poor efficacy of traditional iron‐based ferroptosis initiators. Herein, the study develops a novel ferroptosis‐inducing agent based on PEGylated Cu+/Cu2+‐doped black phosphorus@polypyrrole heterojunction (BP@CPP), which is constructed by utilizing the phosphate on the surface of BP to chelate Cu ions and initiating subsequent in situ polymerization of pyrrole. As a novel Z‐scheme heterojunction, BP@CPP possesses an excellent photocatalytic activity in which the separated electron–hole pairs under laser irradiation endow it with powerful oxidizing and reducing capacities, which synergy with Cu+/Cu2+self‐cycling catalyzing Fenton‐like reaction to further strengthen reactive oxygen species (ROS) accumulation, glutathione (GSH) depletion, and glutathione peroxidase 4 (GPX4) inactivation, ultimately leading to efficient ferroptosis. Systematic in vitro and in vivo evaluations demonstrate that BP@CPP effectively inhibit tumor growth by inducing desired ferroptosis while maintaining a favorable biosafety in the body. Therefore, the developed BP@CPP‐based ferroptosis initiator provides a promising strategy for ferroptosis‐like cancer therapy.
A High‐Entropy Prussian Blue Analog for Aqueous Potassium‐Ion Batteries
Authors: Ma Can , Lin Chao , Li Nan , Chen Yifan , Yang Yusi , Tan Lulu , Wang Zhenglin , Zhang Qianfan , Zhu Yujie 
Published: December 2023

AbstractAqueous potassium‐ion batteries (AKIBs) are considered promising electrochemical energy storage systems owing to their high safety and cost‐effectiveness. However, the structural degradation resulting from the repeated accommodation of large K‐ions and the dissolution of active electrode materials in highly dielectric aqueous electrolytes often lead to unsatisfactory electrochemical performance. This study introduces a high‐entropy Prussian blue analog (HEPBA) cathode material for AKIBs, demonstrating significantly enhanced structural stability and reduced dissolution. The HEPBA exhibits a highly reversible specific capacity of 102.4 mAh g−1, with 84.4% capacity retention after undergoing 3448 cycles over a duration of 270 days. Mechanistic insights derived from comprehensive experimental investigations, supported by theoretical calculations, reveal that the HEPBA features a robust structure resistant to dissolution, a solid‐solution reaction pathway with negligible volume variation during charge–discharge, and efficient ion transport kinetics characterized by a reduced band gap and a low energy barrier. This study represents a measurable step forward in the development of long‐lasting electrode materials for aqueous AKIBs.
Magnetotactic Sperm Cells for Assisted Reproduction
Authors: Striggow Friedrich , Ribeiro Carla , Aziz Azaam , Nauber Richard , Hebenstreit Franziska , Schmidt Oliver G. , Medina‐Sánchez Mariana 
Published: December 2023

AbstractBiohybrid micromotors are active microscopic agents consisting of biological and synthetic components that are being developed as novel tools for biomedical applications. By capturing motile sperm cells within engineered microstructures, they can be controlled remotely while being propelled forward by the flagellar beat. This makes them an interesting tool for reproductive medicine that can enable minimally invasive sperm cell delivery to the oocyte in vivo, as a treatment for infertility. The generation of sperm‐based micromotors in sufficiently large numbers, as they are required in biomedical applications has been challenging, either due to the employed fabrication techniques or the stability of the microstructure‐sperm coupling. Here, biohybrid micromotors, which can be assembled in a fast and simple process using magnetic microparticles, are presented. These magnetotactic sperm cells show a high motility and swimming speed and can be transferred between different environments without large detrimental effects on sperm motility and membrane integrity. Furthermore, clusters of micromotors are assembled magnetically and visualized using dual ultrasound (US)/photoacoustic (PA) imaging. Finally, a protocol for the scaled‐up assembly of micromotors and their purification for use in in vitro fertilization (IVF) is presented, bringing them closer to their biomedical implementation.
Visible‐Light‐Responsive Photoreversible Multi‐Color Switching for Rewritable Light‐Printing and Information Display
Authors: Zhang Yun , Dou Yao , Ye Zuyang , Xue Wenzhao , Liu Feng , Yan Mei , Wang Wenshou , Yin Yadong 
Published: December 2023

AbstractPhotoreversible color switching systems (PCSSs) exhibiting multi‐color responses to visible light are favored for sustainable societal development over those relying on ultraviolet light due to safer operation and better penetration depth. Here, a PCSS capable of multi‐color switching responsive to visible light based on highly photoreductive rutile‐phase Sn‐doped TiO2−x nanoparticles is reported. The Sn‐doping significantly red‐shifts the absorption band of the nanoparticles to the visible region, improving charge separation and transfer efficiencies and introducing Ti3+ species and oxygen vacancies as internal sacrificial electron donors for scavenging photogenerated holes. The resulting Sn‐doped TiO2−x nanoparticles feature exceptional photoreduction ability and activity, thereby enabling photoreversible color switching of various redox dyes operational under visible light illumination. Furthermore, multi‐color switching can be achieved via the color overlay effect by combining different redox dyes in one system, opening the door to many advanced applications, as demonstrated in their successful uses for developing visible‐light‐driven rewritable multi‐color light‐printing systems and visual information displays.
Synergistic Effect of Grain Boundaries and Oxygen Vacancies on Enhanced Selectivity for Electrocatalytic CO2 Reduction
Authors: Wei Xiaoqian , Li Zijian , Jang Haeseong , Wang Zhe , Zhao Xuhao , Chen Yunfei , Wang Xuefeng , Kim Min Gyu , Liu Xien , Qin Qing 
Published: December 2023

AbstractDual‐engineering involved of grain boundaries (GBs) and oxygen vacancies (VO) efficiently engineers the material's catalytic performance by simultaneously introducing favorable electronic and chemical properties. Herein, a novel SnO2 nanoplate is reported with simultaneous oxygen vacancies and abundant grain boundaries (V,G‐SnOx/C) for promoting the highly selective conversion of CO2 to value‐added formic acid. Attributing to the synergistic effect of employed dual‐engineering, the V,G‐SnOx/C displays highly catalytic selectivity with a maximum Faradaic efficiency (FE) of 87% for HCOOH production at −1.2 V versus RHE and FEs > 95% for all C1 products (CO and HCOOH) within all applied potential range, outperforming current state‐of‐the‐art electrodes and the amorphous SnOx/C. Theoretical calculations combined with advanced characterizations revealed that GB induces the formation of electron‐enriched Sn site, which strengthens the adsorption of *HCOO intermediate. While GBs and VO synergistically lower the reaction energy barrier, thus dramatically enhancing the intrinsic activity and selectivity toward HCOOH.
Scalable and Flexible Multi‐Layer Prismatic Photonic Metamaterial Film for Efficient Daytime Radiative Cooling
Authors: Li Wangchang , Zhan Huanchen , Huang Nengyan , Ying Yao , Yu Jing , Zheng Jingwu , Qiao Liang , Li Juan , Che Shenglei 
Published: December 2023

AbstractTo maintain a comfortable indoor living environment in low latitude or tropical regions, humans consume significant amounts of electrical energy in air conditioning, leading to substantial CO2 emissions. Passive daytime radiative cooling (PDRC) allows objects to cool down during the daytime without any energy consumption by dissipating heat through the atmospheric transparency window (8−13 µm) to outer space, which has garnered significant attention. However, the practical applications of common PDRC materials are hindered by their poor optical selectivity and high‐reflective silver backing. Additionally, the availability of artificial photon emitters with complex structures and excellent performance is also limited by their high cost. Herein, a novel multilayer prismatic photonic metamaterial film without any silver reflector, easily scalable and produced by a roll‐to‐roll method is demonstrated, which exhibits ≈96.4% sunlight reflectance (0.3−2.5 µm) and ≈97.2% emissivity in mid‐infrared (IR) (8−13 µm). At an average solar intensity of ≈920 W m−2, it is on average 6.8 °C below ambient temperature during the day and theoretically yields a radiative cooling power of 88.9 W m−2. Furthermore, the film exhibits excellent hydrophobicity, superior flexibility, and robust mechanical strength, providing an attractive and viable pathway for practical applications addressing the pressing challenges of climate and energy issues.
Role of Varieties of Starch in the Development of Edible Films—A Review
Authors: Naveen Rajshri , Loganathan Manickam 
Published: December 2023

AbstractStarch, a stored form of energy in plants, plays an important role in the human diet as it is a vital source of carbohydrate. The classification of starch based on its botanical origin as cereal starch, tuber starch, and millet starch gives a new dimension to starch classification. The starches generally have an amylose (AM) content of 20–30%, amylopectin (AP) of 70–80% and gelatinization temperature of 60–95°C. Conventionally, starch is used in the food industry as a thickening agent and flavor enhancer in soups, sauces, bakery, and confectionery products. But, the less explored area is its utilization in the manufacture of edible films. Starch, due to its plasticizing effect, gelatinization, and pasting property produces film with desirable tensile strength (TS), elongation at break (EAB), and water vapor permeability (WVP). Starch films are not only biodegradable and renewable, but also possess excellent barrier properties. These films produced by wet and dry processing techniques can be used to package confectioneries, meat, sea foods, fruits, and vegetables. In the recent times, superhydrophobic, active, and agro‐waste based edible films have gained industrial importance.
Investigation on reuse of energy at a sewage treatment plant and payback period
Authors: Coelho José Gustavo , Oliveira Fávero Vinícius , Oliveira Guilherme Azevedo , Pinho Francisco Aurilo Azevedo 
Published: December 2023

AbstractThe reuse of energy is a topic currently being widely discussed around the world. This study analyzes the potential for energy reuse in treatment plants. Sewage Treatment Plants are responsible for treating the water present in the sewers of cities. The treated water returns clean to the river, and generally, the place of discharge has a high height and flow rate that can be harnessed for the generation of electric energy. This work investigates the feasibility of installing a Micro Hydroelectric Plant in the Treatment Station of the Uberaba River in Brazil. Hydraulic potential and investment analysis were used as viability criteria. For the study, a height of 6 m and an average flow rate of 0.465 m3/s were considered, which could generate about 22.51 kW using a Bulb water turbine. This power represents a return of US$1651.26 per month from the generation of electric energy. The estimated installation cost was US$32,966.73, and the payback period was found to be less than 2 years. There are 702 sewage treatment plants in Brazil alone, and hypothetical analyses were performed with flow rates ranging from 0.2 to 1 m3/s and heights ranging from 1 to 9 m. Motivating results with payback periods of less than 4 years were obtained for numerous hypothetical situations, which demonstrates the feasibility of installing Micro Hydropower Plants and achieving savings in the sewage treatment system.