bluuebunny/crossref_metadata_2025_split huggingface dataset:
Dual‐Carbon Assisted Oxygen Vacancy Engineering for Optimizing Mn(III) Sites to Enhance Zn–air Battery Performances
Authors: Zhou Benji , Xu Nengneng , Lu Tuo , Wang Yongxia , Lou Shuaifeng , Cai Dongqing , Wu Liangcai , Yang Woochul , Liu Guicheng , Lee Joong Kee , Qiao Jinli 
Published: September 2024

AbstractOwing to kinetic‐sluggish nature of electrocatalytic oxygen transformation processes, it is pivotal to develop durable and efficient bifunctional air electrode catalysts for fabricating high‐performance Zn–air batteries (ZABs). In this work, oxygen vacancy (Ov) induced Mn(III) sites optimization is achieved via nano‐micro structure modulation. Protonated carbon nitride (p‐C3N4) is applied as a structure‐stiffening module to immobilize α‐MnO2 on N/P‐doped active carbon (NPAC) and induce Ov construction. X‐ray adsorption spectra (XAS) disclose the formation of Ov and Mn(III) sites in MCC, the unit coordination structure is well maintained with the aid of a dual‐carbon strategy. Mn(III) sites efficiently catalyze oxygen reduction/evolution reaction (ORR/OER), MCC shows high half‐wave potential (E1/2) of 0.88 V for ORR and low potential at 10 mA cm−2 (Ej = 10) of 1.64 V for OER. According to density functional theory (DFT) simulations analysis, the gorgeous bifunctional activity is owing to that optimized charge distribution facilitates the intermediates transformation. Aqueous ZABs based on MCC manifests high peak power density of 452 mW cm−2 and durable cycling stability of 1640 h. Quasi‐solid‐state ZABs based on MCC also show satisfactory performances (175 mW cm−2, 105 h). This work provides the route to develop efficient and durable electrocatalyst for constructing ZABs with long lifespan and high‐power‐density.
Magnetic Field Induced Dielectric Polarization to Enhance Raman Detection of Nitrite by NiFe2O4@Ag
Authors: Zhao Peng , Sun Haorong , Gao Feixue , Yu Long , Shang Kangle , Fang Ming , Ma Bin , Tan Xiaoli , Wang Suhua , Wang Xiangke 
Published: September 2024

AbstractRapid and accurate detection of nitrite in the aqueous environment is extremely important for ecological safety and human health. In this paper, the Raman detection of nitrite by a NiFe2O4@Ag sensor in water is enhanced by an extra magnetic field collaborated with surface plasma. Most importantly, it is demonstrated that the magnetic field enhances the Raman peak intensity through not only the effect of magnetic aggregation but also the magnetic field‐induced dielectric polarization effect. In this way, the NO2− can be detected in a wide linear range from 10−8 to 10−3 mol L−1, and the limit of detection (LOD) can reach as low as 1.25 × 10−9 mol L−1, which is 5.69 times lower than that in the absence of an external magnetic field. Similarly, the sensitivity under the magnetic field is 2.65 times that without the magnetic field. In addition, the sensor also shows superior detection ability to NO2− in real samples. Given the excellent capability of the magnetic field‐enhanced Raman spectra, the reported strategy offers new thoughts on how to enhance the detection ability by an external magnetic field and show the great application potential in real water bodies.
Topical Transdermal Administration of Supramolecular Self‐Assembled Carnosine for Anti‐Melanin and Anti‐Aging
Authors: Bai De , Wang Zhenyuan , Xie Lin , Lu Beibei , Wang Mi , Zhang Jiaheng 
Published: September 2024

AbstractThe structure of natural proteins has inspired the hypothesis that L‐carnosine (LC), acetyl carnosine (AC), and decarboxy carnosine (DC) self‐assemble into highly bioactive carnosine with supramolecular structures. These structures are proposed to combat skin pigmentation and aging through the coordination of weak interactions between molecules. Simulations are conducted to ascertain the precise free energies of the potential supramolecular structures and to identify the equilibrium structure. The mechanism of transdermal action of supramolecular carnosine is investigated through experiments and molecular dynamics simulations. The results demonstrate that supramolecular carnosine exhibits a more pronounced reactivity with the skin than LC, primarily due to the interaction of AC and DC with the lipid matrix, which reduces interfacial resistance. The anti‐photoaging and anti‐glycation cell models demonstrate that supramolecular carnosine upregulates the expression of the Nrf2 protein, activates the antioxidant defense system of melanocytes, inhibits the expression of the receptor for advanced glycosylation end products (AGEs), and reduces the level of AGEs in vivo. Moreover, supramolecular carnosine has demonstrated satisfactory whitening efficacy in cells and clinical efficacy tests, thereby underscoring its considerable potential for biomedical and aesthetic applications.
Eumelanin‐Enhanced Photothermal Disinfection of Contact Lenses Using a Sustainable Marine Nanoplatform Engineered with Electrospun Nanofibers
Authors: Bartolewska Magdalena , Kosik‐Kozioł Alicja , Korwek Zbigniew , Krysiak Zuzanna , Montroni Devis , Mazur Maciej , Falini Giuseppe , Pierini Filippo 
Published: September 2024

AbstractBacterial keratitis (BK) is a severe eye infection commonly associated with Staphylococcus aureus (S. aureus), posing a significant risk to vision, especially among contact lens wearers. This research introduces a novel smart nanoplatform (deMS@cNF), developed from demineralized mussel shells (deMS) and reinforced with chitin (CT) nanofibrils, specifically designed for portable photothermal disinfection of contact lenses. The nanoplatform leverages the photothermal properties of eumelanin in mussel shells (MS), which, when activated by a simple bike flashlight, rapidly heats to temperatures up to 95 °C, effectively destroying bacterial contamination. In vitro tests demonstrate that the nanoplatform is biocompatible and non‐toxic, making it suitable for medical applications. This study highlights an innovative approach to converting marine biowaste into a safe, effective, and low‐cost portable method for disinfecting contact lenses, showcasing the potential of the deMS@cNF platform for broader antimicrobial applications.
Electronics and Optoelectronics Based on Tellurium
Authors: Zha Jiajia , Dong Dechen , Huang Haoxin , Xia Yunpeng , Tong Jingyi , Liu Handa , Chan Hau Ping , Ho Johnny C. , Zhao Chunsong , Chai Yang , Tan Chaoliang 
Published: September 2024

AbstractAs a true 1D system, group‐VIA tellurium (Te) is composed of van der Waals bonded molecular chains within a triangular crystal lattice. This unique crystal structure endows Te with many intriguing properties, including electronic, optoelectronic, thermoelectric, piezoelectric, chirality, and topological properties. In addition, the bandgap of Te exhibits thickness dependence, ranging from 0.31 eV in bulk to 1.04 eV in the monolayer limit. These diverse properties make Te suitable for a wide range of applications, addressing both established and emerging challenges. This review begins with an elaboration of the crystal structures and fundamental properties of Te, followed by a detailed discussion of its various synthesis methods, which primarily include solution phase, and chemical and physical vapor deposition technologies. These methods form the foundation for designing Te‐centered devices. Then the device applications enabled by Te nanostructures are introduced, with an emphasis on electronics, optoelectronics, sensors, and large‐scale circuits. Additionally, performance optimization strategies are discussed for Te‐based field‐effect transistors. Finally, insights into future research directions and the challenges that lie ahead in this field are shared.
Multispectral Molecular Chiral Barcoding
Authors: Biswas Aritra , Cencillo‐Abad Pablo , Chanda Debashis 
Published: September 2024

AbstractMore than half of pharmaceutical drugs in use are chiral, necessitating accurate techniques for their characterization. Enantiomers, molecules with mirrored symmetry, often exhibit similar physical traits but possess distinct chemical and biological implications. This study harnesses the strong light‐matter interaction induced by “superchiral” light to perform Surface‐Enhanced Infrared Absorption (SEIRA) induced vibrational circular dichroism measurements in the mid‐infrared spectral region. Utilizing a nanopatterned pixelated array of achiral plasmonic nanostructures, the system allows unique identification of enantiomers and biomolecules. Tunability of plasmon resonance facilitates spectral variation of the optical chirality over a wide infrared range, enabling development of a unique chiral “barcoding” scheme to distinguish chiral molecules based on their infrared fingerprint. This simple, yet robust sensor presents a low‐cost solution for chiral mapping of drugs and biomolecules.
Light‐Driven Reverse Water Gas Shift Reaction with 1000‐H Stability on High‐Entropy Alloy Catalysts
Authors: Xiong Hailong , Ji Xiaomin , Mao Keke , Dong Yueyue , Cai Lihua , Chen Aobo , Chen Yihong , Hu Canyu , Ma Jun , Wan Jun , Long Ran , Song Li , Xiong Yujie 
Published: September 2024

AbstractHighly stable and active catalysts are of significant importance and a longstanding challenge for a number of industrial chemical transformations. Here, motivated by the principle of the high entropy‐stabilized structure, high‐entropy alloy‐loaded porous TiO2 as an efficient and sintering‐resistant catalyst for the light‐driven reverse water gas‒shift reaction without external heating is synthesized. The optimized CoNiCuPdRu/TiO2 catalyst exhibits a long‐term stability of 1000 h (1.23 mol gmetal
−1 h−1 CO production rate, >99% high selectivity). In situ characterizations confirm that the slow diffusion effect of high‐entropy alloys endows the catalyst with excellent structural stability. The CO adsorption measurements and theoretical calculations consolidate that the hydrogen surface coverage weakens CO adsorption on the catalyst surface. Two major problems of catalyst deactivation − sintering and poisoning, are handled in one case, which synergistically enable unparalleled stability. This work provides new guidance for the rational design of ultradurable harsh‐condition operation catalysts for industrial catalysis.
Manipulating the Electronic Properties of an Fe Single Atom Catalyst via Secondary Coordination Sphere Engineering to Provide Enhanced Oxygen Electrocatalytic Activity in Zinc‐Air Batteries
Authors: Ji Siqi , Mou Yimin , Liu Hongxue , Lu Xue , Zhang Yuqi , Guo Chunmin , Sun Kaizhan , Liu Dong , Horton Joseph Hugh , Wang Chao , Wang Yu , Li Zhijun 
Published: September 2024

AbstractOxygen reduction and evolution reactions are two key processes in electrochemical energy conversion technologies. Synthesis of nonprecious metal, carbon‐based electrocatalysts with high oxygen bifunctional activity and stability is a crucial, yet challenging step to achieving electrochemical energy conversion. Here, an approach to address this issue: synthesis of an atomically dispersed Fe electrocatalyst (Fe1/NCP) over a porous, defect‐containing nitrogen‐doped carbon support, is described. Through incorporation of a phosphorus atom into the second coordination sphere of iron, the activity and durability boundaries of this catalyst are pushed to an unprecedented level in alkaline environments, such as those found in a zinc‐air battery. The rationale is to delicately incorporate P heteroatoms and defects close to the central metal sites (FeN4P1‐OH) in order to break the local symmetry of the electronic distribution. This enables suitable binding strength with oxygenated intermediates. In situ characterizations and theoretical studies demonstrate that these synergetic interactions are responsible for high bifunctional activity and stability. These intrinsic advantages of Fe1/NCP enable a potential gap of a mere 0.65 V and a high power density of 263.8 mW cm−2 when incorporated into a zinc‐air battery. These findings underscore the importance of design principles to access high‐performance electrocatalysts for green energy technologies.
Advances in Exploring Mechanisms of Oxidative Phenolic Coupling Reactions
Authors: Choi Haeun , Suh Sung‐Eun , Kang Houng 
Published: September 2024

AbstractBiphenolic compounds serve as important scaffolds for the development of biologically active molecules. Among the methods for the synthesis of biarenols, oxidative coupling, which directly forms a C−C bond, has been extensively explored in various metal‐catalyzed (V, Cr, Co, Fe, Cu, etc.) reactions, electrochemical reactions, and photochemical reactions over the decades. While the exact mechanisms remain elusive in many cases, numerous mechanistic studies have provided valuable insights. This review focuses on the mechanistic details of the oxidative coupling of phenols or naphthols, involving at least one radical intermediate. Additionally, the factors governing chemoselectivity (homo‐ and cross‐coupling), regioselectivity (ortho‐, meta‐ and para−), and enantioselectivity (R and S configuration) are discussed, with a particular emphasis on intermediates and transition states, encompassing various oxidation sites for phenols and potential coupling sites.
Epigenetic Dynamics in Reprogramming to Dopaminergic Neurons for Parkinson's Disease
Authors: Cho Byounggook , Kim Junyeop , Kim Sumin , An Saemin , Hwang Yerim , Kim Yunkyung , Kwon Daeyeol , Kim Jongpil 
Published: September 2024

AbstractDirect lineage reprogramming into dopaminergic (DA) neurons holds great promise for the more effective production of DA neurons, offering potential therapeutic benefits for conditions such as Parkinson's disease. However, the reprogramming pathway for fully reprogrammed DA neurons remains largely unclear, resulting in immature and dead‐end states with low efficiency. In this study, using single‐cell RNA sequencing, the trajectory of reprogramming DA neurons at multiple time points, identifying a continuous pathway for their reprogramming is analyzed. It is identified that intermediate cell populations are crucial for resetting host cell fate during early DA neuronal reprogramming. Further, longitudinal dissection uncovered two distinct trajectories: one leading to successful reprogramming and the other to a dead end. Notably, Arid4b, a histone modifier, as a crucial regulator at this branch point, essential for the successful trajectory and acquisition of mature dopaminergic neuronal identity is identified. Consistently, overexpressing Arid4b in the DA neuronal reprogramming process increases the yield of iDA neurons and effectively reverses the disease phenotypes observed in the PD mouse brain. Thus, gaining insights into the cellular trajectory holds significant importance for devising regenerative medicine strategies, particularly in the context of addressing neurodegenerative disorders like Parkinson's disease.
In Situ Growth of MoS2 Onto Co‐Based MOF Derivatives Toward High‐Efficiency Quantum Dot‐Sensitized Solar Cells
Authors: Wang Tianming , Cai Lejuan , Xia Caijuan , Song Han , Li Lianbi , Bai Gongxun , Fu Nianqing , Xian Lede , Yang Rong , Mu Haoran , Zhang Guangyu , Lin Shenghuang 
Published: September 2024

AbstractQuantum dot sensitized solar cells (QDSCs) represent a promising third‐generation photovoltaic technology, boasting a high theoretical efficiency of 44% and cost efficiency. However, their practical efficiency is constrained by reduced photovoltage (Voc) and fill factor (FF). One primary reason is the inefficient charge transfer and elevated recombination rates at the counter electrode (CE). In this work, a novel CE composed of a titanium mesh loaded with Co,N─C@MoS2 is introduced for the assembly of QDSCs. The incorporation of nanosized MoS2 enhances the density of catalytic sites, while the Co,N─C component ensures high conductivity and provides a substantial active surface area. Additionally, the titanium mesh's 3D structure serves as an effective electrical conduit, facilitating rapid electron transfer from the external circuit to the composite. These improvements in catalytic activity, charge transfer rate, and stability of the CE significantly enhance the photovoltaic performance of QDSCs. The optimized cells achieve a groundbreaking power conversion efficiency (PCE) of 16.39%, accompanied by a short‐circuit current density (Jsc) of 27.26 mA cm−2, Voc of 0.818 V, and FF of 0.735. These results not only offer a new strategy for designing electrodes with high catalytic activity but also underscore the promising application of the Co,N─C@MoS2 composite in enhancing QDSC technology.
Dynamically Stabilizing Oxygen Atoms in Silver Catalyst for Highly Selective and Durable CO2 Reduction Reaction
Authors: Mao Yuanxin , Mao Qing , Yang Hongbin , Liu Qi , Dong Xufeng , Li Yifan , Zhou Shizong , Liu Bin 
Published: September 2024

AbstractOxide derived catalyst displays outstanding catalytic activity and selectivity in electrochemical carbon dioxide reduction reaction (CO2RR), in which, it is found that residue oxygen atoms play a pivotal role in regulating the catalyst's electronic structure and thus the CO2RR process. Unfortunately, the intrinsic thermodynamic instability of oxygen atoms in oxide derived catalyst under cathodic CO2RR potentials makes it unstable during continuous electrolysis, greatly hindering its practical industrial applications. In this work, we develop a pulsed‐bias technique that is able to dynamically stabilize the residue oxygen atoms in oxide derived catalyst during electrochemical CO2RR. As a result, the oxide derived catalyst under pulsed bias exhibits super catalytic stability in catalyzing electrochemical CO2RR, while keeping excellent catalytic activity and selectivity.
A Graded Redox Interfacial Modifier for High‐Performance Perovskite Solar Cells
Authors: Qi Wenjing , Liu Zhe , Xie Xinrui , Zhang Yijia , Yu Minhui , Zhang Shi‐Yuan , Zhao Baodan , Zhang Meng , Liu Bo , Di Dawei 
Published: September 2024

AbstractPerovskite solar cells have emerged as a potential competitor to the silicon photovoltaic technology. The most representative perovskite cells employ SnO2 and spiro‐OMeTAD as the charge‐transport materials. Despite their high efficiencies, perovskite cells with such a configuration show unsatisfactory lifespan, normally attributed to the instability of perovskites and spiro‐OMeTAD. Limited attention was paid to the influence of SnO2, an inorganic material, on device stability. Here we show that improving SnO2 with a redox interfacial modifier, cobalt hexammine sulfamate, simultaneously enhances the power‐conversion efficiency (PCE) and stability of the perovskite solar cells. Redox reactions between the bivalent cobalt complexes and oxygen lead to the formation of a graded distribution of trivalent and bivalent cobalt complexes across the surface and bulk regions of the SnO2. The trivalent cobalt complex at the top surface of SnO2 raises the concentration of (SO3NH2)− which passivates uncoordinated Pb2+ and relieves tensile stress, facilitating the formation of perovskite with improved crystallinity. Our approach enables perovskite cells with PCEs of up to 24.91 %. The devices retained 93.8 % of their initial PCEs after 1000 hours of continuous operation under maximum power point tracking. These findings showcase the potential of cobalt complexes as redox interfacial modifiers for high‐performance perovskite photovoltaics.
Ni(0)‐Catalyzed Rearrangement of Vinylcyclobutanones (VCBOs) to Synthesize Six‐Membered Non‐Conjugated Enones
Authors: Ma Jiguo , Duan Jicheng , Yu Zhi‐Xiang 
Published: September 2024

AbstractWe report here the first nickel‐catalyzed rearrangement of vinylcyclobutanones (VCBOs) under mild conditions to synthesize non‐conjugated cyclohexenone derivatives, which so far do not have many ways to be accessed. The reaction exhibits a wide substrate scope with reaction yields up to 98 %. This VCBO rearrangement can also be used to access various n/6 (n=5–8) bicyclic products efficiently. Furthermore, mechanism of this rearrangement has been investigated using DFT calculations, showing that vinyl group‐assisted cyclobutanone C−C cleavage is easy with a computed activation free energy of 18.1 kcal/mol.
Novel amphiphilic rhamnogalacturonnan I‐based nanomicelles for targeted delivery of curcumin to hepatocellular carcinoma cells
Authors: Wu Yuejiao , Yang Jian , Shen Ke , Liu Liyan , Cao Jing , Wang Zhaomei 
Published: September 2024

AbstractCurcumin (Cur) is a bioactive nutraceutical with great potential in biological, nutritional, and medical applications. However, these applications are limited by various factors such as insufficient ingestion, low aqueous solubility, and relatively high toxicity to normal cells. To tackle these obstacles, we synthesized a novel Cur‐modified‐rhamnogalacturonan (RG‐C) nano‐micelle carrier to target‐deliver Cur to hepatocellular carcinoma HepG2 cells via specific recognition of RG‐I by the overexpressed surface galactin‐3 receptor. Fourier transfer infrared, UV–vis, and 1H NMR analyses confirmed the conjugation between RG and Cur RG‐C loaded with Cur (RG‐CC) was formed via self‐assembly in an aqueous solution with a drug loading efficiency of 12.2%. RG‐CC micelle was ellipsoidal or cubic with a size ranging between 100 and 200 nm by scanning electron microscopy observation. Cur release from RG‐CC exhibited a controlled and pH‐dependent manner with 50% at pH 5.0 in contrast to 5% at pH 7.4 after 24 h exposure. RG‐CC possessed more potent anti‐proliferative activity against HepG2 cells than normal embryonic kidney 293T cells. Compared to free Cur, both the anti‐proliferative effect and uptake of RG‐CC were significantly higher in HepG2 cells as revealed from laser confocal microscopy and flow cytometry analyses. RG‐CC was a promising anticancer candidate and deserves further preclinical and clinical investigations.
Catalytic pyrolysis upcycling of waste thermosetting epoxy resin into fire‐retardant additive
Authors: Mahmoodi Roya , Zabihi Omid , Ahmadi Mojtaba , Ferdowsi Mahmoud Reza Ghandehari , Naebe Minoo 
Published: September 2024

AbstractThis research introduces a low‐temperature catalytic‐assisted pyrolysis method for recycling waste thermosetting epoxy resins, transforming them into an efficient fire‐retardant additive for new epoxy resin formulations. In this study, we demonstrate that boric acid (BA) can significantly reduce the temperature required for epoxy resin (EP) pyrolysis, resulting in degradation products containing boron atoms that can act as a fire‐retardant additive. The impact of 5%–20% content of recycled EP (R‐EP) on the curing process, thermal stability, fire retardancy, and mechanical properties of the new EP was comprehensively investigated. The TGA results show that adding BA to epoxy resin at a 1:4 BA:EP ratio significantly reduces pyrolysis temperature. Neat EP degrades in two stages in 341°C and 557°C, while EP with BA degrades in three stages, starting below 120°C and peaking around 142°C. The results demonstrated an outstanding effect of incorporating 20% R‐EP on the char formation and fire retardancy of the new EP, surpassing the performance of 20% triphenyl phosphate (TPP), a commercially available fire retardant. The storage modulus for neat EP is 1510 MPa, increasing to 2280 MPa with EP/R‐EP 20%, indicating enhanced rigidity. Addition of R‐EP raised glass transition temperature (Tg) of the epoxy resin up to 38°C, indicating highly cross‐linked structures compared to TPP‐modified EP, which shows lower Tg values.