bluuebunny/crossref_metadata_2025_split huggingface dataset:
Unlocking Mechanism of Anion and Cation Interaction on Ion Conduction of Polymer Based Electrolyte in Metal Batteries
Authors: Zhang Qi , Bian Tengfei , Wang Xiaobing , Shi Ruijuan , Zhao Yong 
Published: October 2024

AbstractPolymer based electrolyte shows advantages in compatibly improving safety and interface stability of batteries, while its limited ion conductivity and transfer number make it difficult to apply in batteries with high energy density. Herein, by designing four crosslinking polyesters with different electron withdrawing group (EWG), it is found that strengthening the binding of EWG to anion for weakening the binding of anion to Li+ is critical for high Li+ transfer number (
) and ionic conductivity of electrolyte. As a result, poly (2,2,3,3‐tetrafluoropropyl methacrylate) (PTFM) based gel polymer electrolyte (GPE) shows an ionic conductivity of 0.78 mS cm−1 and a
of 0.85, much higher than those of poly (methyl methacrylate) (PMMA) without EWG. Moreover, PTFM based GPE shows excellent flame retardancy property. Li||PTFM||NCM811 batteries with an ultrahigh capacity of 5.5 mAh cm−2 show stable cycles of 5 times to that of Li||PMMA||NCM811. Moreover, the assembled graphite||PTFM||NCM811 pouch cell shows a capacity retention rate of 92 % after 500 cycles. This work clarifies the mechanism of cation/anion interaction on ionic conductivity of GPE, which is important to develop high‐performance devices with good safety and flexibility.
Optimizing the chemical refining process parameters on the removal of free fatty acid in distillers corn oil
Authors: Huda Md. Sanaul , Monono Ewumbua 
Published: October 2024

AbstractDistillers corn oil (DCO) has commonly been used for non‐edible purposes due to its high levels of free fatty acid (FFA). Food‐grade corn oil is usually obtained from oil extracted and refined from corn germs rather than DCO. To enhance the market value and reduce the cost of refining DCO, it is important to optimize the removal of FFA since the chemical refining process conditions for DCO have not yet been studied in‐depth. Therefore, a response surface methodology with a Box–Behnken design was utilized to study the effect of various process conditions during the neutralization of DCO using sodium hydroxide solution, a commonly used and effective neutralizing agent in the food industry. The process parameters selected were the excess level of sodium hydroxide (0%–0.4%), time (0.5–2 h), and temperature (60–70°C). The experimental data were fitted into a second‐order polynomial equation using regression analysis. A well‐fitting model was developed to predict the percent of FFA removed (R2 = 0.9963) at different process scenarios. The optimal process parameters of chemical refining removed approximately 90% of FFAs at an excess level of sodium hydroxide of 0.2%, temperature of 70°C, and time of 2 h. The experimental and predicted values for FFA removal showed minimal deviations during the validation of the developed regression model. Soap and FFA contents of neutralized DCO was within the acceptable limit after the process without any significant changes to the fatty acid profile.
Immobilized Talaromyces leycettanus phospholipase A1 as a reusable biocatalyst for l‐α‐glycerylphosphorylcholine preparation from phosphatidylcholine
Authors: Kim Yubin , Kim In‐Hwan , See Hye‐Jeong , Kim Hye‐Jin , Choi Hyuk Joon , Kim Byung Hee 
Published: October 2024

Abstractl‐α‐Glycerylphosphorylcholine (l‐α‐GPC), a cognitive enhancer, can be prepared via phospholipase A1 (PLA1)‐catalyzed hydrolysis of soy phosphatidylcholine (PC). Quara LowP (QLP), a commercial liquid PLA1 from Talaromyces leycettanus, has not yet been used for the preparation of l‐α‐GPC. This study aimed to establish the optimal conditions for the immobilized QLP‐catalyzed hydrolysis of soy PC to prepare l‐α‐GPC and evaluate the reusability of the enzyme under these conditions. The immobilized QLP was prepared via physical adsorption onto Lewatit VP OC (LVO) 1600. The reaction was performed in n‐hexane–water biphasic media in a stirred‐batch reactor, achieving complete conversion to l‐α‐GPC. Optimal conditions included a temperature of 55°C, a soy PC‐to‐water molar ratio of 1:10, an enzyme loading (based on the protein quantity) of 10 mg/g soy PC, and a reaction time of 12 h. Gradual morphological alterations on the surface of the immobilized QLP, such as the formation of cracks and dents, were observed via scanning electron microscopy over six successive reuse cycles. Nevertheless, the immobilized QLP achieved complete conversion to l‐α‐GPC in its first reuse cycle under the optimal conditions up to the fifth cycle of reuse, with the extension of the reaction time to 60 h. These findings suggest that the LVO 1600‐immobilized QLP is a promising and reusable biocatalyst for the hydrolysis of soy PC to prepare l‐α‐GPC.
Reflective and heat insulation coatings enabled by TiO2@polyacrylate hybrid latex and bionic potassium titanate whisker for passive cooling
Authors: Ke Aojue , Lu Yiming , Tan Zhenhua , Li Xiaomin , Jiang Xiang , Zhang Xinya 
Published: October 2024

AbstractReflective and heat insulation coatings are new types of materials coated on constructions. However, their applications are limited by the undesired insulation effect resulting from the poor reflectance in the solar spectrum of the coating film. In this study, a reflective and heat insulation coating is successfully developed by combining titanium dioxide@polyacrylate (TiO2@PA) hybrid latex with a core‐shell structure and an insulation filler of bionic potassium titanate whisker (PTW). The TiO2 nanoparticles are distributed homogeneously in the polymer matrix due to the polymer‐encapsulated TiO2 structure, achieving a total solar reflectance (TSR) of 71.0%. Notably, the as‐prepared reflective and heat insulation coating films exhibit excellent TSR of 86.0% enabled by TiO2@PA latex and PTW, attributed to the synergistic combination of TiO2@PA and PTW with high TSR. The temperature inside the room coated with the reflective and insulation coatings on the roof is 16.6°C lower than that of the uncoated one, while 20 wt% PTW is introduced into the coating formulation. The resulting reflective and heat insulation coatings are attractive for the fields of passive cooling such as building energy conservation, automotive body, and so on, endowing people with a comfortable life, especially in the hot summer.
Characterization of the pattern of development of key compounds contributing to aroma quality of chicken meat and their metabolic markers
Authors: Wang Yanke , Liu Xiaojing , Wang Yongli , He Zhengxiao , Zhao Guiping , Wen Jie , Cui Huanxian 
Published: October 2024

AbstractAge has an important effect on the aroma of chicken meat. In this study, we systematically analyzed the patterns of aroma changes with increasing age and the key aroma‐contributing compounds and metabolites that lead to aroma differences with age. Electronic nose (e‐nose) and gas chromatography‐mass spectrometry analyses showed that the overall aroma intensity and the types and levels of volatile aroma compounds increased with age. Eight key aroma‐contributing compounds were identified by GC‐olfactometry (GC‐O) and odor activity value analyses, and their content increased with age. The e‐nose and GC‐O results revealed that 315‐day‐old chickens had the strongest aroma. Thus, taking 315‐day‐old chickens as reference, we found that the contents of key aroma‐contributing compounds and metabolites at 140 days of age were most similar to those at 315 days of age. Due to low feed cost, yellow chickens around 140 days of age were more suitable for marketing in terms of volatile aroma substances. It was found that hexanal, 1‐octen‐3‐ol, and (E,E)‐2,4‐decadienal contributed the most to chicken aroma. Additionally, small peptides were found to be the main types of metabolites responsible for the aroma difference in chickens due to age. Weighted gene co‐expression network analysis identified Ile‐Ser, Ile‐Thr, and Phe‐Ile as metabolic markers of hexanal and 1‐octen‐3‐ol, respectively. Further analysis revealed that Ile‐Ser, Ile‐Thr, and Phe‐Ile may promote the Maillard reaction by acting as substrates on the one hand, and facilitating the uptake of amino acids on the other hand, which in turn increases the contents of hexanal and 1‐octen‐3‐ol.
Nano‐Metal‐Organic Frameworks and Nano‐Covalent‐Organic Frameworks: Controllable Synthesis and Applications
Authors: Hu Yaxun , Zhang Songtao , Xu Kun , Zhuang Xiaoli , Tang Yijian , Gong Hao , Pi Yecan , Tian Tian , Pang Huan 
Published: October 2024

AbstractNanoscale framework materials have attracted extensive attention due to their diverse morphology and good properties, and synthesis methods of different size structures have been reported. Therefore, the relationship between different sizes and performance has become a research hotspot. This paper reviews the controllable synthesis strategies of nano‐metal‐organic frameworks (nano‐MOFs) and nano‐covalent‐organic frameworks (nano‐COFs). Firstly, the synthetic evolution of nano‐frame materials is summarized. Due to their special surface area, regular pores and adjustable structural functions, nano‐frame materials have attracted much attention. Then the preparation methods of nanostructures with different dimensions are introduced. These synthetic strategies provide the basis for the design of novel energy storage and catalytic materials. In addition, the latest advances in the field of energy storage and catalysis are reviewed, with emphasis on the application of nano‐MOFs/COFs in zinc‐, lithium‐, and sodium‐based batteries, as well as supercapacitors.
Highly Efficient and Selective Hydrodeoxygenation of Guaiacol Using Ni‐Supported Honeycomb‐Structured Biochar and Phosphomolybdic Acid
Authors: Yin Tao , Luo Yang , Nayak Ripsa Rani , Shu Riyang , Tian Zhipeng , Wang Chao , Chen Ying , Gupta Navneet Kumar 
Published: October 2024

AbstractThe sustainable development of energy has always been a concern. Upgrading biomass catalysis into hydrocarbon liquid fuels is one of the effective methods. In order to upgrade biomass derivative guaiacol by Hydrodeoxygenation (HDO) catalysis, this article report a three‐dimensional honeycomb structure biochar loaded with Ni nanoparticles and phosphomolybdic acid demonstrating excellent catalytic performance in a short period of time. This is due to the porous structure of biochar, which allows Ni metal nanoparticles to be highly uniformly dispersed on the support, which enhances the catalytic hydrogenation of guaiacol in terms of both rate and efficiency. Furthermore, it was observed that the added phosphomolybdic acid dissolved within the temperature range of 78–90 °C, functioning as a homogeneous catalyst in the process. This proves advantageous, as the phosphomolybdic acid becomes accessible at any location within the porous Ni/C catalyst. The detailed characterization data revealed that the carbon support prepared in this study has a high specific surface area of up to 1375.61 m2/g. Additionally, the phosphomolybdic acid exhibited rich acidity, with Brønsted and Lewis acid contents of 2.55 μmol/g and 21.45 μmol/g, respectively. Reaction data demonstrated that at 240 °C for 180 min, 100 % conversion and 97.9 % cyclohexane selectivity were achieved. This study introduces a bifunctional catalyst with an unique catalyst's structure, facilitating a heterogeneous‐homogeneous catalytic reaction and delivering an efficient catalytic effect.
Antimicrobial Isochroman‐Derived Atropo‐Diastereomeric Dimers from Penicillium Steckii SCISO 41228
Authors: Huang Xiaowen , Cai Jian , Xiao Jiao , Zhou Xuefeng , Liu Yonghong , Li Yunqiu , Yang Bin 
Published: October 2024

AbstractA pair of unidentified atropo‐diastereomeric dimers, penicisteckins G (1) and H (2), and twelve known compounds (3–16) were isolated from the marine coral‐derived fungus Penicillium steckii SCISO 41228. Their structures including the absolute configuration were determined by HR‐ESI‐MS, ECD, 1D‐, and 2D‐NMR spectra. Compounds 1 and 2 exhibited moderate antibacterial activity against most tested pathogenic strains, especially for methicillin‐resistant Staphyloccocus aureus (MASA) and Micrococcus luteus, with MIC values of 4.0 μg mL−1. In addition, compounds 2 and 3 exhibit potent radical scavenging activity against 2,2‐diphenyl‐1‐picrylhydrazylhydrate (DPPH), with IC50 values of 10.76 and 8.66 μg mL−1, respectively.
Modular Design and Self‐assembly of pH‐Responsive Multidomain Peptides Incorporating Non‐natural Ionic Amino Acids
Authors: Asokan‐Sheeja Haritha , Das Debdatta , Nguyen Jenny N. , Nguyen Na , Van Khanh Pham Tran , Nguyen Kytai T. , Dong He 
Published: October 2024

AbstractStimuli‐responsive peptides, particularly pH‐responsive variants, hold significant promise in biomedical and technological applications by leveraging the broad pH spectrum inherent to biological environments. However, the limited number of natural pH‐responsive amino acids within biologically relevant pH ranges presents challenges for designing rational pH‐responsive peptide assemblies. In our study, we introduce a novel approach by incorporating a library of non‐natural amino acids featuring chemically diverse tertiary amine side chains. Hydrophobic and ionic properties of these non‐natural amino acids facilitate their incorporation into the assembly domain when uncharged, and electrostatic repulsion promotes disassembly under lower pH conditions. Furthermore, we observed a direct relationship between the number of substitutions and the hydrophobicity of these amino acids, influencing their pH‐responsive properties and enabling rational design based on desired transitional pH ranges. The structure‐activity relationship of these pH‐responsive peptides was evaluated by assessing their antimicrobial properties, as their antimicrobial activity is triggered by the disassembly of peptides to release active monomers. This approach not only enhances the specificity and controllability of pH responsiveness but also broadens the scope of peptide materials in biomedical and technological applications.
Structural Basis for Histaminergic Regulation of Neural Circuits in the Mouse Olfactory Bulb
Authors: Minami‐Ogawa Yukari , Kiyokage Emi , Yamanishi Haruyo , Horie Sawa , Ichikawa Satoshi , Toida Kazunori 
Published: October 2024

ABSTRACTOdor information is modulated by centrifugal inputs from other brain regions to the olfactory bulb (OB). Neurons containing monoamines, such as serotonin, acetylcholine, and noradrenaline, are well known as centrifugal inputs; however, the role of histamine, which is also present in the OB, is not well understood. In this study, we examined the histaminergic neurons projecting from the hypothalamus to the OB. We used an antibody against histidine decarboxylase (HDC), a synthesizing enzyme of histamine, to identify histaminergic neurons and assess their localization within the OB and the ultrastructure of their fibers and synapses using multiple immunostaining laser microscopy, ultra‐high voltage electron microscopy (EM), and EM to confirm their relationships with other neurons. To further identify the origin nucleus of the histaminergic neurons projecting to the OB, we injected the retrograde tracer FluoroGold and analyzed the pathway to the OB anterogradely. HDC‐immunoreactive (‐ir) fibers were abundant in the olfactory nerve (ON) layer compared to other monoamines. HDC‐ir neurons received asymmetrical synapses from ONs and formed synapses containing pleomorphic vesicles with variable postsynaptic densities to non‐ON elements, thus forming serial synapses. We also confirmed that histaminergic neurons project from the rostral ventral tuberomammillary nucleus to the granule cell layer of the OB and, for the first time, successfully visualized their axons from the hypothalamus to the OB. These findings indicate that histamine may regulate odor discrimination in the OB, suggesting a regulatory relationship between hypothalamic function and olfaction. We thus elucidate morphological mechanisms with tuberomammillary nucleus–derived histaminergic neurons involved in olfactory information.
Modification Strategies and Prospects for Enhancing the Stability of Black Phosphorus
Authors: Zhang Haohao , Shan Chaoyue , Wu Koulong , Pang Mingyuan , Kong Zhen , Ye Jiajia , Li Wensi , Yu Lei , Wang Zhao , Pak Yen Leng , An Juan , Gao Xing , Song Jibin 
Published: October 2024

AbstractBlack phosphorus is a two‐dimensional layer material with promising applications due to its many excellent physicochemical properties, including high carrier mobility, ambipolar field effect and unusual in‐plane anisotropy. Currently, BP has been widely used in biomedical engineering, photocatalysis, semiconductor devices, and energy storage electrode materials. However, the unique structure of BP makes it highly chemically active, leading to its easy oxidation and degradation in air, which limits its practical applications. Recently, researchers have proposed a number of initiatives that can address the environmental instability of BP, and the application of these physical and chemical passivation techniques can effectively enhance the environmental stability of BP, including four modification methods: covalent functionalization, non‐covalent functionalization, surface coordination, physical encapsulation and edge passivation. This review highlights the mechanisms of the above modification techniques in addressing the severe instability of BP in different application scenarios, as well as the advantages and disadvantages of each method. This review can provide guidance for more researchers in studying the marvellous properties of BP and accelerate the practical application of BP in different fields.
Mechanically Robust Polyimide Binder Realizes Stable and High Electrochemical Performance for Micro‐Silicon Anodes in Lithium‐Ion Batteries
Authors: Liang Xiaoxiao , Zhang Binjie , Ahmad Niaz , Yu Xianzhe , Zeng Chaoyuan , Dong Qinxi , Yang Wen 
Published: October 2024

AbstractSilicon anodes have been considered one of the most promising candidates for Li‐ion batteries due to their high theoretical specific capacity. However, the practical use of silicon anodes is impeded due to side reactions and volumetric change (from 300~400%) charge/discharge process. Binders played a crucial role in Li‐ion batteries by effectively mitigating the stress resulting from the volumetric expansion in silicon‐based anodes. Herein, we developed a mechanically stable polyimide binder PI‐CF3 that introduced trifluoromethyl and hydroxyl groups for commercial microparticular silicon anodes. With a highest Young′s modulus of ~921.1 MPa, the binder presented the maximum resilience during the charging and discharging of Micro‐Si, integrating the morphology, and reducing the degree to which the electrode disrupted ion and electric pathways. Moreover, −OH and −CF3 groups of the binder could potentially interact with oxide layer at the surface of silicon through hydron bonds, and thereby results in a cross‐linking network to improve interface stability during cycling. The as‐prepared PI‐CF3 binder with excellent intrinsic mechanical and electro‐rich groups stabilizes the electrode structure and facilitates fast Li+ transportation. Consequently, micro‐Si anode delivered initial specific capacity of 1838 mAh g−1 (at 0.6 A g−1), and at high mass (Si loading = 0.78 mg cm−2) these was retained about 1219 mAh g−1 after 330 cycles (only −0.061% capacity reduction per cycle).
Reliability Evaluation of MMC‐MTDC System Considering Device Failure Rates and Multi‐State Transition
Authors: Li Kang , Zha Xiaoming , Huang Meng , Chen Rongjun , Lu Zhimin 
Published: October 2024

ABSTRACTThe modular multi‐level converter based multi‐terminal high voltage direct current (MMC‐MTDC) system, with its numerous power devices and diverse operating states, poses a significant challenge for reliability evaluation. The paper introduces a method for modeling and assessing the reliability of MMC‐MTDC, considering both power device failure rates and multi‐state transitions of multiple terminals. To determine the weights of influence, the analytic hierarchy process (AHP) is employed to evaluate the impact of sub‐modules (SMs), the controller system, and the water cooling systems of an MMC. Subsequently, a multi‐state transition model is established to describe the changes in the operation mode of the MMC‐MTDC. On this basis, the reliability evaluation via semi‐Markov processes is implemented. A case study is performed on the reliability of a ±200 kV five‐terminal system and the results are compared with practical operation data.
Design of High‐Performance Radix‐Power‐of‐2 Butterfly Architectures for FFT Implementation by Cosine Coefficients Extraction
Authors: Moni Varghese Vijay , Sundaram Kumaravel 
Published: October 2024

ABSTRACTDesigning FFTs with higher radix butterfly units are increasingly in demand to combat the high throughput of 20 Gbps of the current 5G and 1 Tbps for beyond 5G technologies. Previous higher radix FFTs were implemented in FPGA, giving importance to area and power. This paper presents the design of radix‐power‐of‐2 butterfly circuit, using the proposed radix cosine coefficients' extractor equation that is applicable to all the inputs. This enables efficient pipelined shift‐add implementation of the required complex rotations. The proposed methodology encompasses the implementation of any power‐of‐two‐radix butterfly to realize large size FFT, essential for real‐time 5G and 6G applications. The proposed radix‐4, radix‐8, radix‐16, and radix‐32 architectures are implemented and verified on Xilinx Spartan‐7 FPGA using Vivado Design Suite (v2018). The results demonstrate that the proposed radix‐16 and radix‐32 architectures achieve a higher clock frequency, by a factor of 5.23 and 6.76, respectively, compared to the most recent literature. For performance analysis, the area‐delay and power‐delay products of the proposed radix‐16 and radix‐32 butterfly architecture are computed. The proposed radix‐16 butterfly architecture exhibits a 13.3% reduction in area‐delay product and a 34.25% decrease in power‐delay product compared to recent literatures. Similarly, the radix‐32 architecture shows a 27.31% lower area‐delay product and a 0.63% lower power‐delay product.