ACS Chemical Neuroscience最新文献

{"title":"The investigation of highly efficient chlorinated hydrocarbons removal based on metal nanoparticles carbonaceous synthetic particles: The degradation behavior and selective transformation mechanism","authors":"Jia Wang, Shuangrong Wu, Ke Liu, Qi Yang, Haoze Liu, Zhilin Yang","doi":"10.1016/j.cej.2024.157387","DOIUrl":"https://doi.org/10.1016/j.cej.2024.157387","url":null,"abstract":"Overconsumption in industrial manufacturing has led to critical emissions of chloroalkanes, posing a significant environmental threat. In this study, the innovative biochar (BC) particles containing nanocrystalline: NZVI, Fe/Pd, Fe/Ni were prepared by impregnation-liquid phase reduction using the pyrolysis of coconut husk as precursors to explore the degradation capabilities of chloroform (CF) via orthogonal experiment. The results indicated that when the pH value was 3, the temperature was 20 ℃, and the reaction time was 60 min, the CF removal efficiency of Fe/Ni-BC reached 80.38 ± 2.08 %, outperforming all other tested synthetic particles. Advanced characterization techniques showed that the abundant dispersed metallic nanoparticle sites would refresh the surface crystal morphology, improve the adsorption enrichment ability of biochar, enhance electron transfer capacity of synthetic particles, and further participate in reductive dechlorination by inducing an electrophilic attack of active hydrogen. Theoretical calculations verified that hydrogen activation and CF facile adsorption would be easily achieved after the introduction of metal nanoparticles, profiting from the multiple synergistic effects between special π-delocalized bond of biochar in carbon layer and multiple nanoparticles docking sites, and thus enhancing the specific CF catalytic selectivity of Fe/Ni as the active center. Collectively, the CF degradation on Fe/Ni-BC was a complex chemisorption process along with reductive hydrogenation decomposition, which achieved the parent CF reduction and promoted the conversion of the low-chlorinated benign products. These findings offer new insights into the developed multifunctional BC and their comprehensive assessment of CF sewage remediation.","PeriodicalId":13,"journal":{"name":"ACS Chemical Neuroscience","volume":"14 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142610393","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Additive effects of cerebrovascular disease functional connectome phenotype and plasma p‐tau181 on longitudinal neurodegeneration and cognitive outcomes","authors":"Joanna Su Xian Chong, Fang Ji, Saima Hilal, Joyce Ruifen Chong, Jia Ming Lau, Nathanael Ren Jie Tong, Boon Yeow Tan, Narayanaswamy Venketasubramanian, Mitchell Kim Peng Lai, Christopher Li‐Hsian Chen, Juan Helen Zhou","doi":"10.1002/alz.14328","DOIUrl":"https://doi.org/10.1002/alz.14328","url":null,"abstract":"INTRODUCTIONWe investigated the effects of multiple cerebrovascular disease (CeVD) neuroimaging markers on brain functional connectivity (FC), and how such CeVD‐related FC changes interact with plasma phosphorylated tau (p‐tau)181 (an Alzheimer's disease [AD] marker) to influence downstream neurodegeneration and cognitive changes.METHODSMultivariate associations among four CeVD markers and whole‐brain FC in 529 participants across the dementia spectrum were examined using partial least squares correlation. Interactive effects of CeVD‐related FC patterns and p‐tau181 on longitudinal gray matter volume (GMV) and cognitive changes were investigated using linear mixed‐effects models.RESULTSWe identified a brain FC phenotype associated with high CeVD burden across all markers. Further, expression of this general CeVD‐related FC phenotype and p‐tau181 contributed additively, but not synergistically, to baseline and longitudinal GMV and cognitive changes.DISCUSSIONOur findings suggest that CeVD exerts global effects on the brain connectome and highlight the additive nature of AD and CeVD on neurodegeneration and cognition.Highlights<jats:list list-type=\"bullet\"> <jats:list-item>Effects of multiple cerebrovascular disease (CeVD) markers on functional connectivity were studied.</jats:list-item> <jats:list-item>A global network phenotype linked to high burden across CeVD markers was identified.</jats:list-item> <jats:list-item>CeVD phenotype and plasma phosphorylated tau 181 contributed additively to downstream outcomes.</jats:list-item> </jats:list>","PeriodicalId":13,"journal":{"name":"ACS Chemical Neuroscience","volume":"98 1","pages":""},"PeriodicalIF":14.0,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142610401","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Kinetic insights into the relationships between anaerobic corrosion and decontamination of nanoscale zerovalent iron improved by sulfidation","authors":"Jiahao Du, Haozhen Li, Jinhua Zhang, Wenhao Wang, Zhen Li, Qingchan Li, Jinxiang Li","doi":"10.1016/j.cej.2024.157638","DOIUrl":"https://doi.org/10.1016/j.cej.2024.157638","url":null,"abstract":"There is a trade-off between corrosion and decontamination of nanoscale zero-valent iron (nZVI), which can be modulated by the sulfidation. Despite that, the insights into the relationship between anaerobic corrosion and decontamination of sulfidated nZVI (S-nZVI) remain unclear from a kinetic point of view. Herein, we used the variation of open-circuit potential to explore the anaerobic corrosion kinetic of S-nZVI. Taking Cr(VI) as the targeted contaminant, a negative correlation between decontamination and the corrosion of S-nZVI was identified during the first 10 min of reaction (R² = 0.6919, slope = -0.7091) and after the 10 min of reaction (R² = 0.7556, slope = -0.1307). Based on the results of TEM mapping, electrochemical impedance spectroscopy and XPS, this study further revealed that sulfidation not only enhanced the mass transfer of Cr(VI) toward nZVI in the initial stage of reaction, but also improved the electron transfer of nZVI toward Cr(VI) in the later stage of reaction. The ultimately enhanced removal and reduction of Cr(VI) by S-nZVI should be attributed to the introduction of iron sulfides (FeS_x) that not only promoted the conductivity but also favored the affinity of nZVI toward Cr(VI). Overall, the kinetic insights presented in this study are valuable for understanding the process mechanisms of S-nZVI in anaerobic water and may extend to provide theoretical support for the development of enhanced methods for the remediation of contaminated groundwater using nZVI.","PeriodicalId":13,"journal":{"name":"ACS Chemical Neuroscience","volume":"20 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142610282","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The n–π* electronic transition induced by nitrogen vacancies enhances photocatalytic hydrogen production in carbon nitride","authors":"Zhili Xu, Jing Li, Deyi Zhan, Yue Liu, Weihong Xu, Junfeng Wang, Zhiwu Yu","doi":"10.1016/j.cej.2024.157670","DOIUrl":"https://doi.org/10.1016/j.cej.2024.157670","url":null,"abstract":"In semiconductor catalysts, long-lived excited states can effectually improve the utilization of photogenerated carriers to enhance photocatalytic performance. Herein, we used supramolecular engineering to synthesize a hollow tubular carbon nitride catalyst with N vacancies and an obvious n–π* transition. The unique hollow tubular structure provides abundant active sites, which are favorable for photocatalytic reaction. The presence of N vacancies expands the π-electron delocalization domains in the conjugated system, which excites the n–π* transition and thus triggers the red-shifted absorption edge at approximately 660 nm. Experiments and DFT calculations demonstrated that the N vacancies are beneficial for narrowing the bandgap and promoting the reduction of H⁺ by photogenerated electrons. Femtosecond transient absorption spectroscopy (fs-TAS) indicated that the n–π* electronic transition in the carbon nitride photocatalyst leads to slower exciton annihilation (lifetime: 38.64 ± 10.6 ps) and extended shallow electron trapping states (lifetime: 325.9 ± 19.3 ps). The appearance of these states adds more photogenerated electrons to the photocatalytic reaction process. The optimal hollow tubular carbon nitride catalyst exhibits a hydrogen production rate of 2664.47 μmol∙g⁻¹∙h⁻¹, which is 31.2 times higher than that of bulk carbon nitride (85.3325 μmol∙g⁻¹∙h⁻¹). This work highlights the ability of the n–π* transition induced by N vacancies to enhance the photocatalytic activity of carbon nitride.","PeriodicalId":13,"journal":{"name":"ACS Chemical Neuroscience","volume":"5 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142610283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Insight into discharge of non-aqueous Li–O2 battery using a three-dimensional electrochemical lattice Boltzmann model","authors":"Timan Lei, Junyu Yang, Geng Wang, Jin Chen, Yinglong He, Kai H. Luo","doi":"10.1016/j.cej.2024.157462","DOIUrl":"https://doi.org/10.1016/j.cej.2024.157462","url":null,"abstract":"Non-aqueous Li–&lt;span&gt;&lt;span&gt;&lt;math&gt;&lt;msub is=\"true\"&gt;&lt;mrow is=\"true\"&gt;&lt;mtext is=\"true\"&gt;O&lt;/mtext&gt;&lt;/mrow&gt;&lt;mrow is=\"true\"&gt;&lt;mn is=\"true\"&gt;2&lt;/mn&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;/math&gt;&lt;/span&gt;&lt;script type=\"math/mml\"&gt;&lt;math&gt;&lt;msub is=\"true\"&gt;&lt;mrow is=\"true\"&gt;&lt;mtext is=\"true\"&gt;O&lt;/mtext&gt;&lt;/mrow&gt;&lt;mrow is=\"true\"&gt;&lt;mn is=\"true\"&gt;2&lt;/mn&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;/math&gt;&lt;/script&gt;&lt;/span&gt; battery (NALiO2B) is a promising alternative to lithium-ion batteries, offering high theoretical energy density. However, its practical applications are hampered by limited understanding of the underlying mechanisms. In this study, a three-dimensional electrochemical lattice Boltzmann method is proposed to simulate the physical and electrochemical processes during NALiO2B discharge at the pore scale. The discharge performance of NALiO2B is evaluated for various electrode and electrolyte designs. It is found that the limited &lt;span&gt;&lt;span&gt;&lt;math&gt;&lt;msub is=\"true\"&gt;&lt;mrow is=\"true\"&gt;&lt;mtext is=\"true\"&gt;O&lt;/mtext&gt;&lt;/mrow&gt;&lt;mrow is=\"true\"&gt;&lt;mn is=\"true\"&gt;2&lt;/mn&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;/math&gt;&lt;/span&gt;&lt;script type=\"math/mml\"&gt;&lt;math&gt;&lt;msub is=\"true\"&gt;&lt;mrow is=\"true\"&gt;&lt;mtext is=\"true\"&gt;O&lt;/mtext&gt;&lt;/mrow&gt;&lt;mrow is=\"true\"&gt;&lt;mn is=\"true\"&gt;2&lt;/mn&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;/math&gt;&lt;/script&gt;&lt;/span&gt; diffusion within homogeneous electrodes is the primary cause of the declined reactive electrode surface area, the intensified electrochemical reaction (or overpotential), and finally the premature battery death. This issue can be mitigated by employing the hierarchical electrode &lt;span&gt;&lt;span&gt;&lt;math&gt;&lt;msub is=\"true\"&gt;&lt;mrow is=\"true\"&gt;&lt;mtext is=\"true\"&gt;BP&lt;/mtext&gt;&lt;/mrow&gt;&lt;mrow is=\"true\"&gt;&lt;mn is=\"true\"&gt;2&lt;/mn&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;/math&gt;&lt;/span&gt;&lt;script type=\"math/mml\"&gt;&lt;math&gt;&lt;msub is=\"true\"&gt;&lt;mrow is=\"true\"&gt;&lt;mtext is=\"true\"&gt;BP&lt;/mtext&gt;&lt;/mrow&gt;&lt;mrow is=\"true\"&gt;&lt;mn is=\"true\"&gt;2&lt;/mn&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;/math&gt;&lt;/script&gt;&lt;/span&gt; with a bi-porous structure. The large pores in &lt;span&gt;&lt;span&gt;&lt;math&gt;&lt;msub is=\"true\"&gt;&lt;mrow is=\"true\"&gt;&lt;mtext is=\"true\"&gt;BP&lt;/mtext&gt;&lt;/mrow&gt;&lt;mrow is=\"true\"&gt;&lt;mn is=\"true\"&gt;2&lt;/mn&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;/math&gt;&lt;/span&gt;&lt;script type=\"math/mml\"&gt;&lt;math&gt;&lt;msub is=\"true\"&gt;&lt;mrow is=\"true\"&gt;&lt;mtext is=\"true\"&gt;BP&lt;/mtext&gt;&lt;/mrow&gt;&lt;mrow is=\"true\"&gt;&lt;mn is=\"true\"&gt;2&lt;/mn&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;/math&gt;&lt;/script&gt;&lt;/span&gt; improve &lt;span&gt;&lt;span&gt;&lt;math&gt;&lt;msub is=\"true\"&gt;&lt;mrow is=\"true\"&gt;&lt;mtext is=\"true\"&gt;O&lt;/mtext&gt;&lt;/mrow&gt;&lt;mrow is=\"true\"&gt;&lt;mn is=\"true\"&gt;2&lt;/mn&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;/math&gt;&lt;/span&gt;&lt;script type=\"math/mml\"&gt;&lt;math&gt;&lt;msub is=\"true\"&gt;&lt;mrow is=\"true\"&gt;&lt;mtext is=\"true\"&gt;O&lt;/mtext&gt;&lt;/mrow&gt;&lt;mrow is=\"true\"&gt;&lt;mn is=\"true\"&gt;2&lt;/mn&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;/math&gt;&lt;/script&gt;&lt;/span&gt; transport to sustain the stable reaction process, thus enhancing the discharge capacity of NALiO2B. To further boost the rate capability of NALiO2B, &lt;span&gt;&lt;span&gt;&lt;math&gt;&lt;msub is=\"true\"&gt;&lt;mrow is=\"true\"&gt;&lt;mtext is=\"true\"&gt;BP&lt;/mtext&gt;&lt;/mrow&gt;&lt;mrow is=\"true\"&gt;&lt;mn is=\"true\"&gt;2&lt;/mn&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;/math&gt;&lt;/span&gt;&lt;script type=\"math/mml\"&gt;&lt;math&gt;&lt;msub is=\"true\"&gt;&lt;mrow is=\"true\"&gt;&lt;mtext is=\"true\"&gt;BP&lt;/mtext&gt;&lt;/mrow&gt;&lt;mrow is=\"true\"&gt;&lt;mn is=\"true\"&gt;2&lt;/mn&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;/math&gt;&lt;/script&gt;&lt;/span&gt; is partially infiltrated with electrolyte to form the multiphase (MP)","PeriodicalId":13,"journal":{"name":"ACS Chemical Neuroscience","volume":"11 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142610289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Efficient multi-objective Bayesian optimization of gas–liquid photochemical reactions using an automated flow platform","authors":"Stefan Desimpel, Jan Dijkmans, Koen P.L. Kuijpers, Matthieu Dorbec, Kevin M. Van Geem, Christian V. Stevens","doi":"10.1016/j.cej.2024.157685","DOIUrl":"https://doi.org/10.1016/j.cej.2024.157685","url":null,"abstract":"We developed an automated platform capable of performing photochemical gas–liquid reactions. The platform was augmented with a state-of-the-art Bayesian optimization algorithm and was tested on the decatungstate-catalyzed aerobic oxidation of ethyl benzene, to optimize both yield and productivity, and identify the Pareto front of these objectives. Although photochemical gas–liquid systems are highly complex due to numerous interactions between the parameters, including effects on mass-transfer, gas solubility and light absorption, the algorithm demonstrated impressive speed to navigate the parameter space towards optimal conditions. Furthermore, this approach also proved highly flexible, allowing for modification of objectives and parameter ranges on the fly. The identified conditions were then tested on a select scope of substrates, to better understand the generality of these conditions, especially on molecules where selectivity comes into play. The results show the platform to be a useful tool for reaction optimization and process intensification.","PeriodicalId":13,"journal":{"name":"ACS Chemical Neuroscience","volume":"6 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142609830","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Chocolate pattern-inspired flexible thick electrodes: A facile mechanical imprinting method","authors":"Huadong Gao, Yang Xiong, Bo Rui, Yinhua Bao, Yicheng Song, Bo Lu, Junqian Zhang","doi":"10.1016/j.cej.2024.157266","DOIUrl":"https://doi.org/10.1016/j.cej.2024.157266","url":null,"abstract":"Inspired by chocolate patterning, this paper proposes a facile mechanical imprinting method for constructing novel flexible thick electrodes in response to the rapid development of multifunctional batteries. Appropriately designed imprinting of the active layer in a semi-dry state during the drying process can introduce stable ridge-slot patterns within the thick electrodes, which requires only low-cost and scalable templates with minimal modifications to the electrode fabrication process. Due to imprinting introducing ion transport channels in the electrode thickness direction, electrochemical cycling performance of imprinted thick electrodes can be significantly enhanced compared to conventional thick electrodes. For high C-rate conditions, the areal capacity of the thick electrode can be increased by up to approximately 225 % due to the imprinting, while the cycling remains stable. More interestingly, these thick electrodes with ridge-slot patterns exhibit remarkable flexibility due to the fact that the slot portion acts as a “joint”. The capacity loss of a pouch cell containing the imprinted electrode loses only about 4 % of its capacity after 10,000 bending cycles. Based on these results, this work provides a novel pathway for the development of flexible thick electrodes for multifunctional high-capacity batteries.","PeriodicalId":13,"journal":{"name":"ACS Chemical Neuroscience","volume":"46 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142610334","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Industrial–scale production of various bio–commodities by engineered MCFs: Strategies of engineering in microbial robustness","authors":"Ju-Hyeong Jung, Vinoth Kumar Ponnusamy, Gopalakrishnan Kumar, Bartłomiej Igliński, Vinod Kumar, Gergorz Piechota","doi":"10.1016/j.cej.2024.157679","DOIUrl":"https://doi.org/10.1016/j.cej.2024.157679","url":null,"abstract":"The utilization of renewable, non–edible biomass for synthesis of valuable bio–products, such as bio–fuels, and bio–polymeric materials, in an environmentally sustainable manner is crucial for addressing the urgent environmental challenges caused by our substantial dependence on fossil fuel resources. In this context, engineered microbial cell factories (MCFs), which are modified microorganisms, have gained attention and mainly involve biosynthetically optimized pathways for the production of desired bio–commodities using renewable carbon sources. Biosynthetic routes for the production of such bio–commodities can be categorized into three groups based on the chosen microbial host for genetic modification: native, non–native, and artificially produced pathways. Engineered MCFs are increasingly essential in the pharmaceutical, food, and bio–chemical industries and are being developed to address the growing world population and socioeconomic crisis. Mainly, microorganisms have been utilized in the manufacture of a range of bio–products, such as amino acids, carboxylic acids, carotenoids, enzymes, vitamins, plant natural products, biogas, and other biofuels. Furthermore, the implementation of metabolic engineering techniques enhances the speed, concentration, and efficiency of commercially important substances by modifying the carbon–energy balance and eliminating an undesired ATP sink, metabolism, physiology, and stress response. Industrial biotechnology is experiencing rapid growth due to engineered MCFs for production of several bio–commodities. This review summarizes the design of MFCs, selection of microbial strains, metabolic pathways, engineered MCFs for industrial–scale applications, strategies for engineering microbial robustness, commercial restrictions, and their future prospects.","PeriodicalId":13,"journal":{"name":"ACS Chemical Neuroscience","volume":"34 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142610285","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evolutionary identification in dense separation fluidized beds using dynamic mode decomposition with pruning","authors":"Gansu Zhang, Hongyang Li, Zhiqiang Li, Shuxian Su, Xuan Xu, Liang Dong, Wei Dai, Qinglai Wei","doi":"10.1016/j.cej.2024.157477","DOIUrl":"https://doi.org/10.1016/j.cej.2024.157477","url":null,"abstract":"Evolutionary identification of hydrodynamics from pressure signals is crucial for advancing the precise control of dry coal separation. Dynamic Mode Decomposition (DMD) is the key method to construct the data-driven control framework. Pressure signals rather than snapshots are investigated for industrial applications, bringing challenges to the implementation of DMD. The techniques of time delay embedding and optimal amplitude are introduced to make DMD work better for pressure signals. Comprehensive parameter tests of stack dimension <span><span style=\"\"></span><span data-mathml='&lt;math xmlns=\"http://www.w3.org/1998/Math/MathML\"&gt;&lt;mi is=\"true\"&gt;s&lt;/mi&gt;&lt;/math&gt;' role=\"presentation\" style=\"font-size: 90%; display: inline-block; position: relative;\" tabindex=\"0\"><svg aria-hidden=\"true\" focusable=\"false\" height=\"1.394ex\" role=\"img\" style=\"vertical-align: -0.235ex;\" viewbox=\"0 -498.8 469.5 600.2\" width=\"1.09ex\" xmlns:xlink=\"http://www.w3.org/1999/xlink\"><g fill=\"currentColor\" stroke=\"currentColor\" stroke-width=\"0\" transform=\"matrix(1 0 0 -1 0 0)\"><g is=\"true\"><use xlink:href=\"#MJMATHI-73\"></use></g></g></svg><span role=\"presentation\"><math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi is=\"true\">s</mi></math></span></span><script type=\"math/mml\"><math><mi is=\"true\">s</mi></math></script></span> and truncation order <span><span style=\"\"></span><span data-mathml='&lt;math xmlns=\"http://www.w3.org/1998/Math/MathML\"&gt;&lt;mi is=\"true\"&gt;r&lt;/mi&gt;&lt;/math&gt;' role=\"presentation\" style=\"font-size: 90%; display: inline-block; position: relative;\" tabindex=\"0\"><svg aria-hidden=\"true\" focusable=\"false\" height=\"1.394ex\" role=\"img\" style=\"vertical-align: -0.235ex;\" viewbox=\"0 -498.8 451.5 600.2\" width=\"1.049ex\" xmlns:xlink=\"http://www.w3.org/1999/xlink\"><g fill=\"currentColor\" stroke=\"currentColor\" stroke-width=\"0\" transform=\"matrix(1 0 0 -1 0 0)\"><g is=\"true\"><use xlink:href=\"#MJMATHI-72\"></use></g></g></svg><span role=\"presentation\"><math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mi is=\"true\">r</mi></math></span></span><script type=\"math/mml\"><math><mi is=\"true\">r</mi></math></script></span> are carried out to seek for optimal identification performance. Due to parameter sensitivity, the qualification verification by sliding windows is performed to determine the robustness of parameter pairs. Spatiotemporal coherent structures are extracted to guide the regulation of separation process. In order to avoid the inefficiency of control, a heuristic sparsity promoting method using pruning is proposed to obtain a reduced order model. The original modes more than 100 can be reduced to approximately 35 primary modes. Furthermore, the Prune dominant frequency is defined, which can perceive the subtle fluctuations of temporal evolution than FFT and DMD for the long-term time. Present study provides the insight of hydrodynamics of dense gas-solid fluidized bed, establishing the foundation for future control studies of dry coal separation.","PeriodicalId":13,"journal":{"name":"ACS Chemical Neuroscience","volume":"25 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142610332","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Magnetic nanochain-induced anisotropic nerve assembly for spinal cord injury repair","authors":"Yangnan Hu, Hao Wei, Hui Zhang, Hong Cheng, Dongyu Xu, Huan Wang, Zeyou Zhang, Bin Zhang, Yixian Liu, Yusong Wang, Chen Zhang, Jilai Li, Yuanjin Zhao, Renjie Chai","doi":"10.1016/j.cej.2024.157681","DOIUrl":"https://doi.org/10.1016/j.cej.2024.157681","url":null,"abstract":"Utilizing neural tissue engineering scaffolds to improve and reconstruct the injury microenvironment has shown great promise for repairing spinal cord injury (SCI). Here, we present a type of magnetic nanochain-induced anisotropic nerve assembly for SCI repair. Under the magnetical drive, silica-coated magnetic nanoparticles assemble into highly stable nanochains, further integrated into the hydrogel and controlled by a magnetic field to form an anisotropic array in a three-dimensional space. In vitro studies confirm that the prepared anisotropic nanochain array exhibits good biocompatibility and can guide the directional growth of nerve cells and the elongation of neurites. Upon <em>in vivo</em> application, the anisotropic nanochain array is transplanted into a 2-mm-long SCI area of rats and successfully promotes the regeneration of new neurons and axons, together with the recovery of motor functions. These findings suggest that magnetic nanochain-induced anisotropic nerve assembly can be a viable option for SCI repair.","PeriodicalId":13,"journal":{"name":"ACS Chemical Neuroscience","volume":"98 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142610286","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}