bluuebunny/crossref_metadata_2025_split huggingface dataset:
Ferrocene‐Based Nickel Metal–Organic Framework Nanosheets as Efficient, Long‐Cycle Cathode Catalyst for Li‐CO2 Battery
Authors: Chen Haixia , Li Xijuan , Liu Zhixin , Xu Yunyun , Yan Yige , Li Peng , Chang Kun , Huang Xianli , He Jianping , Wang Tao 
Published: November 2024

AbstractLi‐CO2 batteries, as a novel type of secondary battery, show great potential for energy conversion and storage. However, challenges such as large electrode polarization and poor cycling performance, stemming from difficulties in decomposing discharge products, limit their practical application. Here, Ferrocene‐based nickel metal–organic framework (Ni‐Fc) nanosheets structure to act as cathode catalysts, prepared via a one‐pot solvothermal reaction. X‐ray absorption fine structure (XAFS) analysis shows that Ni metal forms abundant catalytic active centers with O coordination of carboxylic acid groups in ferrocene units. The Ni‐Fc‐based battery demonstrates a high discharge capacity of 18636 mAh g−1 and exhibits a cycle life exceeding 2000 h at a current of 200 mA g−1. Density functional theory (DFT) calculations indicate that the stronger interaction of Ni‐Fc with discharge intermediates and enhanced Li adsorption accelerate battery reaction kinetics. This study introduces novel catalyst design concepts aimed at achieving high‐performance CO2 reduction and oxidation, thereby advancing Li‐CO2 batteries toward practical application.
3D Bimetallic Platinum‐Nickel Electrodes for Electro‐Oxidation of Glycerol at Ambient Conditions
Authors: Angizi Shayan , Nankali Mahdis , Foroozan Amir , Park Jihyeon , Yelekli Kirici Ecem , Noor Navid , Fefer Michael , Terazono Yuichi , Higgins Drew 
Published: November 2024

AbstractPartial electro‐oxidation using renewable electricity offers a sustainable route for valorizing glycerol, a major by‐product of biofuel production. This study introduces a bimetallic electrode with nanostructured platinum dendrites on nickel foam (Pt/NiF), achieving a peak geometric current density of 235 mA cm−2 and a Pt‐mass normalized current density of 3.71 for glycerol electro‐oxidation at 0.92 V versus a reversible hydrogen electrode (RHE) in 3 m KOH electrolyte containing 1 m glycerol, outperforming most previously reported Pt‐containing catalysts. The Pt/NiF electrode demonstrates over 92% cumulative selectivity toward C3 products, with 64% selectivity for lactic acid at 0.65 V versus RHE over 5 h of testing. This research also highlights the role of chemical oxidation pathways (isomerization and rearrangements) in converting glycerol to lactic acid. After 5 h at 0.65 V versus RHE, the Pt/NiF electrode maintains 35% of its initial current density, plateauing at 12.2 mA cm−2 (0.15 ), with performance loss likely due to surface poisoning by carbon‐based reaction intermediates/byproducts or passivating platinum (hydr)oxide species. These findings pave the way for developing low‐platinum group metal catalysts with high glycerol oxidation affinity and highlight the importance of considering chemical transformations during catalyst evaluation and reactor design.
Large Scale Ultrafast Manufacturing of Wireless Soft Bioelectronics Enabled by Autonomous Robot Arm Printing Assisted by a Computer Vision‐Enabled Guidance System for Personalized Wound Healing
Authors: Kim Jihyun , Jeong Seol‐Ha , Thibault Brendan Craig , Soto Javier Alejandro Lozano , Tetsuka Hiroyuki , Devaraj Surya Varchasvi , Riestra Estefania , Jang Yeongseok , Seo Jeong Wook , Rodríguez Rafael Alejandro Cornejo , Huang Lucia L. , Lee Yuhan , Preda Ioana , Sonkusale Sameer , Fiondella Lance , Seo Jungmok , Pirrami Lorenzo , Shin Su Ryon 
Published: November 2024

AbstractA Customized wound patch for Advanced tissue Regeneration with Electric field (CARE), featuring an autonomous robot arm printing system guided by a computer vision‐enabled guidance system for fast image recognition is introduced. CARE addresses the growing demand for flexible, stretchable, and wireless adhesive bioelectronics tailored for electrotherapy, which is suitable for rapid adaptation to individual patients and practical implementation in a comfortable design. The visual guidance system integrating a 6‐axis robot arm enables scans from multiple angles to provide a 3D map of complex and curved wounds. The size of electrodes and the geometries of power‐receiving coil are essential components of the CARE and are determined by a MATLAB simulation, ensuring efficient wireless power transfer. Three heterogeneous inks possessing different rheological behaviors can be extruded and printed sequentially on the flexible substrates, supporting fast manufacturing of large customized bioelectronic patches. CARE can stimulate wounds up to 10 mm in depth with an electric field strength of 88.8 mV mm−1. In vitro studies reveal the ability to accelerate cell migration by a factor of 1.6 and 1.9 for human dermal fibroblasts and human umbilical vein endothelial cells, respectively. This study highlights the potential of CARE as a clinical wound therapy method to accelerate healing.
Polymer‐ and Lipid‐Based Nanostructures Serving Wound Healing Applications: A Review
Authors: Cetin Fatma N. , Mignon Arn , Van Vlierberghe Sandra , Kolouchova Kristyna 
Published: November 2024

AbstractManagement of hard‐to‐heal wounds often requires specialized care that surpasses the capabilities of conventional treatments. Even the most advanced commercial products lack the functionality to meet the needs of hard‐to‐heal wounds, especially those complicated by active infection, extreme bleeding, and chronic inflammation. The review explores how supramolecular nanovesicles and nanoparticles—such as dendrimers, micelles, polymersomes, and lipid‐based nanocarriers—can be key to introducing advanced wound healing and monitoring properties to address the complex needs of hard‐to‐heal wounds. Their potential to enable advanced functions essential for next‐generation wound healing products—such as hemostatic functions, transdermal penetration, macrophage polarization, targeted delivery, and controlled release of active pharmaceutical ingredients (antibiotics, gaseous products, anti‐inflammatory drugs, growth factors)—is discussed via an extensive overview of the recent reports. These studies highlight that the integration of supramolecular systems in wound care is crucial for advancing toward a new generation of wound healing products and addressing significant gaps in current wound management practices. Current strategies and potential improvements regarding personalized therapies, transdermal delivery, and the promising critically evaluated but underexplored polymer‐based nanovesicles, including polymersomes and proteinosomes, for wound healing.
Mitochondrial‐Targeting Mesoporous Polydopamine Nanoparticles for Reducing Kidney Injury Caused by Depleted Uranium
Authors: Li Wenrun , Shen Li , Fu Shiyan , Li Yong , Huang Feng , Li Qi , Lin Qinyang , Liu Hongjia , Wang Qiuchi , Chen Liyi , Tan Huanhuan , Li Juan , Zhao Yazhen , Ran Yonghong , Hao Yuhui 
Published: November 2024

AbstractDepleted uranium (DU), when accidentally released from the nuclear industry, can enter the human body and cause kidney damage, as DU induces oxidative damage and apoptosis through mitochondrial pathways and inflammatory reactions. The existing nanoparticles used to treat DU injury have low bioavailability and poor targeting. In this study, mesoporous polydopamine (MPDA), poly‐(ethylene glycol) (PEG), and triphenylphosphonium (TPP) are combined to develop a novel mitochondrion‐targeting bifunctional nanoparticle, MPDA–PEG–TPP, and confirm that it can protect the kidneys from DU. This study demonstrates the high selectivity of MPDA–PEG–TPP for uranyl in uranyl chelate assays and its promising efficiency in uranyl sequestration from the kidneys, lungs, and femurs, following immediate or delayed administration of MPDA–PEG–TPP nanoparticles. In vitro assays confirm its efficiency in removing reactive oxygen species and targeting the mitochondria. In addition, in vitro and in vivo assays confirm that MPDA–PEG–TPP can reduce mitochondrial dysfunction and ameliorate kidney injury. These results suggest that MPDA–PEG–TPP is a valuable agent for ameliorating the DU‐induced kidney injury.
Biocooperative Regenerative Materials by Harnessing Blood‐Clotting and Peptide Self‐Assembly
Authors: Padilla‐Lopategui Soraya , Ligorio Cosimo , Bu Wenhuan , Yin Chengcheng , Laurenza Domenico , Redondo Carlos , Owen Robert , Sun Hongchen , Rose Felicity R.A.J. , Iskratsch Thomas , Mata Alvaro 
Published: November 2024

AbstractThe immune system has evolved to heal small ruptures and fractures with remarkable efficacy through regulation of the regenerative hematoma (RH); a rich and dynamic environment that coordinates numerous molecular and cellular processes to achieve complete repair. Here, a biocooperative approach that harnesses endogenous molecules and natural healing to engineer personalized regenerative materials is presented. Peptide amphiphiles (PAs) are co‐assembled with blood components during coagulation to engineer a living material that exhibits key compositional and structural properties of the RH. By exploiting non‐selective and selective PA‐blood interactions, the material can be immediately manipulated, mechanically‐tuned, and 3D printed. The material preserves normal platelet behavior, generates and provides a continuous source of growth factors, and promotes in vitro growth of mesenchymal stromal cells, endothelial cells, and fibroblasts. Furthermore, using a personalized autologous approach to convert whole blood into PA‐blood gel implants, bone regeneration is shown in a critical‐sized rat calvarial defect. This study provides proof‐of‐concept for a biocooperative approach that goes beyond biomimicry by using mechanisms that Nature has evolved to heal as tools to engineer accessible, personalized, and regenerative biomaterials that can be readily formed at point of use.
Regulating the Local Spin States in Spinel Oxides to Promote the Activity of Li‐CO2 Batteries
Authors: Liu Yingqi , Wu Xinru , Qu Haotian , Lu Gongxun , Chen Yanli , Lu Bingyi , Song Yanze , Zhou Guangmin , Cheng Hui‐Ming 
Published: November 2024

AbstractDue to the high energy barrier, slow reaction kinetics, and complex reaction environments of Li‐CO2 batteries, the development of durable and efficient catalysts is essential. Transition metal oxides are promising for their availability, stability, and 3d electronic features, with spin states playing an important role in CO2 activation. In this study, the local spin states are regulated by incorporating Ni into Co3O4 and its impact on activity in Li‐CO2 batteries is explored. The results show that Ni atoms with high spin states in Ni0.1Co2.9O4 facilitate electron transfer from the catalyst to the unoccupied orbitals of CO2, providing sufficient active sites for the nucleation and growth of small Li2CO3 crystals. These small crystals have a low decomposition barrier, leading to improved battery efficiency. Therefore, Ni0.1Co2.9O4 shows superior catalytic performance with an overpotential of 0.72 V and an energy efficiency of ≈70% after 500 h. This work provides insights into the relationship between spin states and CO2 reactions, highlighting a promising avenue for developing high‐performance metal‐CO2 batteries.
Inducing Efficient and Multiwavelength Circularly Polarized Emission From Perovskite Nanocrystals Using Chiral Metasurfaces
Authors: Fiuza‐Maneiro Nadesh , Mendoza‐Carreño Jose , Gómez‐Graña Sergio , Alonso Maria Isabel , Polavarapu Lakshminarayana , Mihi Agustín 
Published: November 2024

AbstractChiral nano‐emitters have recently received great research attention due to their technological applications and the need for a fundamental scientific understanding of the structure‐property nexus of these nanoscale materials. Lead halide perovskite nanocrystals (LHP NCs) with many interesting optical properties have anticipated great promise for generating chiral emission. However, inducing high anisotropy chiral emission from achiral perovskite NCs remains challenging. Although chiral ligands have been used to induce chirality, their anisotropy factors (glum) are low [10−3 to 10−2]. Herein, the generation of high anisotropy circularly polarized photoluminescence (CPL) from LHP NCs is demonstrated using chiral metasurfaces by depositing nanocrystals on top of prefabricated resonant photonic structures (2D gammadion arrays). This scalable approach results in CPL with glum to a record high of 0.56 for perovskite NCs. Furthermore, the differences between high‐index dielectric chiral metasurfaces and metallic ones are explored for inducing chiral emission. More importantly, the generation of simultaneous multi‐wavelength circularly polarized light is demonstrated by combining dielectric and metallic chiral metasurfaces.
Light‐Manipulated Millimeter‐Scale Swimming Robot for Precise Navigation
Authors: Qin Huanqi , He Cong , Zhang Jiahao , Wen Chunyu , Wang Dalei , Liu Wei , Dai Chaoqing 
Published: November 2024

AbstractMicro‐swimming robots have been increasingly emphasized in the fields of targeted drug delivery and water surface cleaning, which mainly use open external structures or external environments to assist navigation, but there are still salient problems, such as the difficulty of stable capture and poor navigation accuracy. Theoretically, a light‐driven swimming robot can have a symmetrical embedded structure to constrain surface tension gradient forces and thermophoretic forces in a wide range of directions and convert them into precise directional forces. Therefore, a sustained‐capture swimming robot is developed with precise navigation consisting of TiO2/polypyrrole (PPy) composites containing a symmetric inner truncated‐cone hole structure and realized multiple controllable motion patterns. Excitingly, the capture motion of the TiO2/PPy inner truncated‐cone hole structure robot “TPHR” can be accurately controlled by programmable automation, with capture travel speeds of up to ≈23.64 mm s−1. Its excellent kinematic performance stems from the high photothermal conversion efficiency (≈47.83%) of the composite and the synergistic effect between thermo‐capillary and thermo‐convective flows. Furthermore, a patterning precision movement, water surface oil‐cleaning microstructure assembly, etc. are realized, reflecting the engineering application value of TPHR. This structure provides a novel strategy for the development of micro‐swimming robots with stable capture and sustainable motion.
3D Printed Biodegradable Soft Actuators from Nanocellulose Reinforced Gelatin Composites
Authors: Müller Oliver , Poulin Alexandre , Aeby Xavier , Emma Roberto , Kanno Ryo , Nagai Toshiaki , Shintake Jun , Nyström Gustav 
Published: November 2024

AbstractEco‐friendly materials are increasingly important for several applications due to growing environmental concerns, including in robotics and medicine. Within robotics, silicone‐based soft grippers are recently developed owing to their high adaptability and versatility allowing to deal with various objects. However, the soft grippers are difficult to recycle and may cause increased environmental impact. Here biodegradable soft pneumatic actuators reinforced by cellulose nanofibrils (CNF) distributed in a matrix of gelatin are presented. The results show that adding CNF enables 3D printability and provides tunable mechanical properties for the actuators. The actuator performance, with a bending angle of 80° and a blocked force of 0.1 N at 15 kPa, is comparable to state‐of‐the‐art mold‐casted pneumatic actuators from conventional silicone materials while being exclusively composed of non‐toxic, biodegradable materials and fabricated by additive manufacturing techniques. Moreover, the actuators exhibit self‐healing ability and enable object manipulation when formed in a gripper configuration. The mold‐free approach and achieved functionalities establish new opportunities for soft‐robotics, across various fields including healthcare, packaging, or even environmental monitoring. The performance of the gripper shows that CNF can be used in the creation of eco‐friendly high‐performance soft robots and contribute to the advancement of sustainable and green robotics.
Role of Polymer‐Iodine Complexes on Solid‐Liquid Polysulfide Phase Transitions and Rate Capability of Lithium Sulfur Batteries
Authors: Nishshanke Maleesha M. , Jovanović Petar , Panda Manas R. , Abedin Md. Joynul , McNamara Declan , Hill Matthew R. , Bhattacharya Joydipto , Kamal Chinnathambi , Shaibani Mahdokht , Majumder Mainak 
Published: November 2024

AbstractLithium–sulfur (Li–S) batteries are considered as a viable technology offering energy‐dense electrochemical energy storage systems. However, the inherently slow reaction kinetics manifested in the slow charge and discharge characteristics constrain their real‐world applications. Here, it is reported that polyiodide species held within a complex polar network of polyvinylpyrrolidone (PVP) accelerate the rate‐limiting solid‐liquid phase transitions both in the reduction and oxidation steps during battery cycling. Density functional theory calculations support a mechanism in which a combination of enhanced binding of polysulfides and additional energy states in the PVP‐iodine‐polysulfide complexes accelerates the reaction pathways mediated by inter‐valance polyiodide reactions within the working voltage of Li–S batteries. These studies show that PVP‐iodine (PVP‐I) complexes enhance the rate capability of cells with practical sulfur loadings delivering a high areal capacity of ≈7 mAh cm−2 at the practical 0.5C rate. This advantage is demonstrated in one of the highest‐rate pouches reported in Li–S literature, attaining energy densities of 215 and 156 Wh kg at 0.1C and 0.3C, respectively. The results demonstrate a subtle but powerful shift in the design of molecular binder systems, which have functional roles above and beyond the role of simply holding the active materials together.
Effects of Cleaning Interval, Hapa Layers and Stocking Density on Growth Performance of Sandfish Holothuria scabra Juveniles in Ocean‐Based Nursery Production Systems
Authors: Gacura Jonh Rey L. , Gorospe Jay R C. , Rescordado Racelle R. , Southgate Paul C. , de la Torre‐de la Cruz Margarita 
Published: November 2024

ABSTRACTThe mass production of release‐size H. scabra juveniles in the Philippines is primarily done in a floating hapa ocean‐based nursery systems. To optimize its production, understanding the influence of different culture conditions and their management is necessary. In this study, the effects of hapa net cleaning interval, hapa layers, and stocking density on growth and survival of sandfish juveniles reared in floating hapa (L × W × H: 1.7 m × 0.9 m × 1.2 m) nursery system were assessed in two 60‐day field studies. Results showed that the number of hapa net layers and cleaning interval had negligible effects on the growth performance of sandfish juveniles by day 30. However, sandfish juvenile survival was affected by hapa net layers with higher survival in triple‐layer mosquito net hapas (40.5 ± 0.97%) compared to double‐layer mosquito net hapas (17.8 ± 0.62%). By day 60, the growth performance of sandfish juveniles in double‐layer hapas was higher (average weight: 5.0 ± 0.97 g; AGR: 0.13 ± 0.03 g day−1) compared to that in triple‐layer mosquito hapa nets (average weight: 3.1 ± 0.23 g; AGR: 0.07 ± 0.01 g day−1). Survival of sandfish juveniles reared in double‐layer mosquito net hapas, cleaned at 5‐day intervals (85.9 ± 4.58%) was significantly lower compared to all other treatments. Conversely, initial juvenile stocking density did not significantly affect the growth performance and survival of sandfish juveniles in both rearing cycles. We therefore recommend the use of triple‐layer mosquito net hapas during the first 30‐day culture period and an initial stocking density of 1000 post‐settled sandfish juveniles to increase production output. After 30 days, when the juveniles are larger, the use of double‐layer mosquito net hapas and lower stocking density are recommended to reduce cost and enhance growth performance. Where cleaning is necessary, hapa nets may be cleaned at 10‐day intervals to improve survival. The results of this study have important implications for optimizing the production of release‐size sandfish in ocean‐based nursery systems in the Philippines.
Lignin‐carbon buffered Cu sites for clean H2 evolution coupled to lignin upgrading to jet fuel precursor
Authors: Wang Xiaofei , Liao Jinbin , Qiu Xueqing , Deng Yaxin , Lin Xuliang , Qin Yanlin 
Published: November 2024

AbstractSolar‐driven photocatalysis is a promising strategy for clean hydrogen (H2) generation cooperated with selective organic synthesis. Lignin, rich in aromatic units and functional groups, serves as an ideal hole sacrificial agent and substrate, facilitating H2 evolution and yielding high‐value chemicals/fuels. To boost overall photocatalytic redox efficiency, thermal catalysis was further combined to enhance the transfer and activity of photo‐generated carriers. And a highly controllable Cu‐based catalyst was developed using technical lignin‐carbon as an electron buffer. The active‐pyrolyzed lignin‐carbon layer precisely regulated the crystal dispersion of Cu species on Cu/SiO2, simultaneously dynamically constructing active electron‐rich Cu0 and electron‐deficient Cuσ+ (1 < σ ≤ 2) sites. Excellent thermo‐photo redox performances were achieved, with an H2 evolution rate up to 1313.2 μmol·gcat−1·h−1 and a yield of 45.2% for C13–C16 aromatic dimers from lignin monomers. This study reveals the highly utilization of lignin in functional catalysts, as well as the efficient production of H2 and jet fuel precursors.