Pub Date : 2025-01-27DOI: 10.1016/j.cej.2025.159935
Yein Kwon, Myoungro Lee, Nagendra Kumar Kaushik, Hah Young Yoo, Chulhwan Park, Min-Ho Lee, Taek Lee
The cell systematic evolution of ligands by exponential enrichment (cell-SELEX) enabled the development of aptamers to recognize cell surface proteins in their embedded state for diagnostics and therapeutics. Traditional cell-SELEX monitoring relied on fluorescence-activated cell sorting (FACS) that requires expensive equipment. To overcome these limitations, this study proposed a simple and cost-effective, electrochemical cell-SELEX monitoring method. This method converted the binding reaction between cells and aptamers on the electrode into an electrical signal and analyzes it using electrochemical impedance spectroscopy (EIS). This method significantly reduced experimental time and costs by eliminating the need for expensive equipment and labeling with specific markers such as fluorescent dyes or enzymes. An aptamer selected through electrochemical cell-SELEX monitoring using colon cancer cell line SNU-81 shows high affinity (Kd of 101.5 nM). Affinity-based purification confirmed that the aptamer binds to heat shock protein 60 (HSP60). The affinity for HSP60 was further validated (Kd = 109.2 nM), and the similarity to the binding affinity observed with cells allowed for the identification of the aptamer’s binding site, demonstrating its potential as a biomarker for colorectal cancer (CRC). The developed colorectal cancer cell detection biosensor demonstrated a limit of detection of 88.7 cell/mL for concentrations within a range of 102 ––106 cell/mL. Overall, this study establishes a streamlined cell-SELEX method widely applicable to biosensors and therapeutics. It provides a comprehensive development framework for cancer diagnostic devices, including aptamer development, biomarker discovery, and diagnostic sensor fabrication for colorectal cancer.
{"title":"Electrochemical cell-SELEX monitoring and its application to electrochemical aptasensor for colorectal cancer detection","authors":"Yein Kwon, Myoungro Lee, Nagendra Kumar Kaushik, Hah Young Yoo, Chulhwan Park, Min-Ho Lee, Taek Lee","doi":"10.1016/j.cej.2025.159935","DOIUrl":"https://doi.org/10.1016/j.cej.2025.159935","url":null,"abstract":"The cell systematic evolution of ligands by exponential enrichment (cell-SELEX) enabled the development of aptamers to recognize cell surface proteins in their embedded state for diagnostics and therapeutics. Traditional cell-SELEX monitoring relied on fluorescence-activated cell sorting (FACS) that requires expensive equipment. To overcome these limitations, this study proposed a simple and cost-effective, electrochemical cell-SELEX monitoring method. This method converted the binding reaction between cells and aptamers on the electrode into an electrical signal and analyzes it using electrochemical impedance spectroscopy (EIS). This method significantly reduced experimental time and costs by eliminating the need for expensive equipment and labeling with specific markers such as fluorescent dyes or enzymes. An aptamer selected through electrochemical cell-SELEX monitoring using colon cancer cell line SNU-81 shows high affinity (<em>K</em><sub>d</sub> of 101.5 <!-- --> <!-- -->nM). Affinity-based purification confirmed that the aptamer binds to heat shock protein 60 (HSP60). The affinity for HSP60 was further validated (<em>K<sub>d</sub></em> = 109.2 nM), and the similarity to the binding affinity observed with cells allowed for the identification of the aptamer’s binding site, demonstrating its potential as a biomarker for colorectal cancer (CRC). The developed colorectal cancer cell detection biosensor demonstrated a limit of detection of 88.7<!-- --> <!-- -->cell/mL for concentrations within a range of 10<sup>2</sup> ––10<sup>6</sup> <!-- -->cell/mL. Overall, this study establishes a streamlined cell-SELEX method widely applicable to biosensors and therapeutics. It provides a comprehensive development framework for cancer diagnostic devices, including aptamer development, biomarker discovery, and diagnostic sensor fabrication for colorectal cancer.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"114 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143044824","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-01-27DOI: 10.1016/j.cej.2025.159941
Miaomiao Xu, Tianhua Zhou, Bowen Yang, Jing Wang, Xing Sun, Chen Dong, Chunyuan Song, Jie Chao, Dan Zhu, Lixing Weng
Cancer immunotherapy faces significant challenges in enhancing immune responses, necessitating the development of innovative adjuvants. This study investigates the immune-stimulatory properties of Lactoferrin (LF) when assembled into a DNA tetrahedron structure (TAL) with stable spatial structure as an engineered adjuvant. This approach effectively addressed the limited immunostimulatory ability of lactoferrin in its free state, demonstrating the crucial role of DNA tetrahedron-based assembly of lactoferrin in enhancing adjuvant stimulation of antigen-presenting cells (APCs). TAL promoted antigen presentation, leading to a heightened inflammatory response in macrophage activation through the activation of the RIG-I-like receptor signaling pathway. In vivo studies further demonstrated that the assembled TAL enhanced immune response and exhibited substantial efficacy in enhancing synergy with Doxorubicin (DOX) in the context of cancer immunotherapy for breast cancer models. This synergy facilitated the differentiation of cytotoxic T lymphocytes and significantly amplified the therapeutic effect of DOX, allowing for a reduction in the required DOX dosage. Our findings suggest that TAL holds promise as a novel immune adjuvant in cancer immunotherapy, offering valuable insights for the development of neoadjuvants derived from biological nanomaterials. This study underscores the potential of strategically engineering weak immunostimulatory agents into stable structures to develop effective adjuvants, paving the way for innovative therapeutic strategies of adjuvant in clinical oncology
{"title":"The enhancing effect of DNA tetrahedron-based lactoferrin as an assembled adjuvant in immunotherapy","authors":"Miaomiao Xu, Tianhua Zhou, Bowen Yang, Jing Wang, Xing Sun, Chen Dong, Chunyuan Song, Jie Chao, Dan Zhu, Lixing Weng","doi":"10.1016/j.cej.2025.159941","DOIUrl":"https://doi.org/10.1016/j.cej.2025.159941","url":null,"abstract":"Cancer immunotherapy faces significant challenges in enhancing immune responses, necessitating the development of innovative adjuvants. This study investigates the immune-stimulatory properties of Lactoferrin (LF) when assembled into a DNA tetrahedron structure (TAL) with stable spatial structure as an engineered adjuvant. This approach effectively addressed the limited immunostimulatory ability of lactoferrin in its free state, demonstrating the crucial role of DNA tetrahedron-based assembly of lactoferrin in enhancing adjuvant stimulation of antigen-presenting cells (APCs). TAL promoted antigen presentation, leading to a heightened inflammatory response in macrophage activation through the activation of the RIG-I-like receptor signaling pathway. <em>In vivo</em> studies further demonstrated that the assembled TAL enhanced immune response and exhibited substantial efficacy in enhancing synergy with Doxorubicin (DOX) in the context of cancer immunotherapy for breast cancer models. This synergy facilitated the differentiation of cytotoxic T lymphocytes and significantly amplified the therapeutic effect of DOX, allowing for a reduction in the required DOX dosage. Our findings suggest that TAL holds promise as a novel immune adjuvant in cancer immunotherapy, offering valuable insights for the development of neoadjuvants derived from biological nanomaterials. This study underscores the potential of strategically engineering weak immunostimulatory agents into stable structures to develop effective adjuvants, paving the way for innovative therapeutic strategies of adjuvant in clinical oncology","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"20 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143044224","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-01-27DOI: 10.1016/j.cej.2025.159990
Qihuan Liu, Zhen Yu, Yaoxin Zhang, Ke Mao, Weier Xiang, Shuai Guo, Ting Xiong, Swee Ching Tan
Lithium extraction from seawater offers a promising solution to mitigating the shortage of terrestrial lithium resources. Photothermal evaporation, which received tremendous attention recently, shows vast potential for this purpose by rapidly rising the lithium concentration of seawater while separating other ions. In order to improve the efficacy of photothermal evaporation-driven lithium extraction, it is necessary to develop evaporation structures with high solar conversion and reasonable structure design. Here, we first developed the facile synthesis approach of hierarchically ordered polypyrrole nanoarrays as the high-performance solar absorber, and then proposed a strategy of unidirectionally channeling photothermal seawater fluid through the nanostructured evaporator to enable linear enrichment, confined salt crystallization and hence lithium extraction. The evaporator achieves evaporation rates up to 1.87 kg m-2 h-1 and selectively concentrates lithium by several orders of magnitude while rejecting NaCl in the form of site-specific salt precipitation. Finally, a Li/Na ratio of >4000 is achieved by our approach. Besides experimental validations, a transport model is employed to interpretate the concentration and separation process. Our strategy also shows the advantages of scalability and feasibility, making it an effective practical solution for lithium extraction from seawater.
{"title":"Solar-driven fast and selective extraction of lithium from seawater enabled by unidirectional photothermal conversion and confined crystallization with facile synthesis of nanoarray evaporator","authors":"Qihuan Liu, Zhen Yu, Yaoxin Zhang, Ke Mao, Weier Xiang, Shuai Guo, Ting Xiong, Swee Ching Tan","doi":"10.1016/j.cej.2025.159990","DOIUrl":"https://doi.org/10.1016/j.cej.2025.159990","url":null,"abstract":"Lithium extraction from seawater offers a promising solution to mitigating the shortage of terrestrial lithium resources. Photothermal evaporation, which received tremendous attention recently, shows vast potential for this purpose by rapidly rising the lithium concentration of seawater while separating other ions. In order to improve the efficacy of photothermal evaporation-driven lithium extraction, it is necessary to develop evaporation structures with high solar conversion and reasonable structure design. Here, we first developed the facile synthesis approach of hierarchically ordered polypyrrole nanoarrays as the high-performance solar absorber, and then proposed a strategy of unidirectionally channeling photothermal seawater fluid through the nanostructured evaporator to enable linear enrichment, confined salt crystallization and hence lithium extraction. The evaporator achieves evaporation rates up to 1.87 kg m<sup>-2</sup> h<sup>-1</sup> and selectively concentrates lithium by several orders of magnitude while rejecting NaCl in the form of site-specific salt precipitation. Finally, a Li/Na ratio of >4000 is achieved by our approach. Besides experimental validations, a transport model is employed to interpretate the concentration and separation process. Our strategy also shows the advantages of scalability and feasibility, making it an effective practical solution for lithium extraction from seawater.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"120 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143044290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-01-27DOI: 10.1016/j.cej.2025.159920
Lang Zhang, Dong Fang, Fei Wang, Jianhong Yi, Mingjun Wang, Te Hu, Yan Zhao
The electrochemical properties of layered vanadate cathode materials for aqueous zinc ion batteries (AZIBs) are still restricted by sluggish reaction kinetics, low conductivity, and poor structural stability. Herein, the Na-doped hydrated NH4V4O10 (NaNVOH) with different contents of interlayered H2O/NH4+ and O-vacancies are obtained with optimized electrostatic interaction between [VOn] framework and H2O/NH4+/Na+ as well as Zn2+ diffusion kinetics. Experimental evidence and theoretical calculations show that the optimal interlayered H2O/NH4+ and more O-vacancies in NaNVOH (NaNVOH2) reinforce the bond strength, narrow the band gap, and promote Zn2+ diffusion coefficients. The reduced H+ insertion hinders cathode/electrolyte interfacial side reaction, ensures sufficient Zn2+ diffusion coefficients at voltage range of 0.6–0.2 V. Meantime, the high electrochemical reversibility of Zn3(OH)2V2O7·2H2O by-product is also validated by in-situ and ex-situ characterizations. As a result, the NaNVOH2 cathode shows a high specific capacity (519mAh/g at 0.5C, 1 C = 500 mA g−1), good rate capability (236mAh/g at 10C), and a stable cycling life (without obvious capacity decay over 3000 cycles at 15C). This study is of great significance for developing high-performance layered vanadate toward the practical application of AZIBs.
{"title":"Interlayer and O-vacancy engineering co-boosting fast kinetics and stable structure of hydrated sodium ammonium vanadate for aqueous zinc-ion battery","authors":"Lang Zhang, Dong Fang, Fei Wang, Jianhong Yi, Mingjun Wang, Te Hu, Yan Zhao","doi":"10.1016/j.cej.2025.159920","DOIUrl":"https://doi.org/10.1016/j.cej.2025.159920","url":null,"abstract":"The electrochemical properties of layered vanadate cathode materials for aqueous zinc ion batteries (AZIBs) are still restricted by sluggish reaction kinetics, low conductivity, and poor structural stability. Herein, the Na-doped hydrated NH<sub>4</sub>V<sub>4</sub>O<sub>10</sub> (NaNVOH) with different contents of interlayered H<sub>2</sub>O/NH<sub>4</sub><sup>+</sup> and O-vacancies are obtained with optimized electrostatic interaction between [VO<sub>n</sub>] framework and H<sub>2</sub>O/NH<sub>4</sub><sup>+</sup>/Na<sup>+</sup> as well as Zn<sup>2+</sup> diffusion kinetics. Experimental evidence and theoretical calculations show that the optimal interlayered H<sub>2</sub>O/NH<sub>4</sub><sup>+</sup> and more O-vacancies in NaNVOH (NaNVOH2) reinforce the bond strength, narrow the band gap, and promote Zn<sup>2+</sup> diffusion coefficients. The reduced H<sup>+</sup> insertion hinders cathode/electrolyte interfacial side reaction, ensures sufficient Zn<sup>2+</sup> diffusion coefficients at voltage range of 0.6–0.2 V. Meantime, the high electrochemical reversibility of Zn<sub>3</sub>(OH)<sub>2</sub>V<sub>2</sub>O<sub>7</sub>·2H<sub>2</sub>O by-product is also validated by <em>in-situ</em> and <em>ex-situ</em> characterizations. As a result, the NaNVOH2 cathode shows a high specific capacity (519mAh/g at 0.5C, 1 C = 500 mA g<sup>−1</sup>), good rate capability (236mAh/g at 10C), and a stable cycling life (without obvious capacity decay over 3000 cycles at 15C). This study is of great significance for developing high-performance layered vanadate toward the practical application of AZIBs.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"4 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143044294","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-01-27DOI: 10.1016/j.cej.2025.159982
Zhongqiang Bao, Hao Chen, Limin Geng, Donghui Qi, Han Wu, Xuegong Yan, Zhenhua Ji, Peng Zhang, Fengyu Sun, Wenbo Zhang
In order to address air pollution and global climate change, countries around the world have established regulations to limit pollutant emissions. Therefore, aftertreatment technologies, such as diesel particulate filters (DPFs), must be employed to filter Particulate matter from the exhaust gases and meet the emission limits set by regulations. This paper reviews the composition of diesel particulate matter, the principles and structure of DPFs, and the recent changes in emission regulations. It also examines the technological evolution of DPF systems in response to stricter standards. Furthermore, it explores cutting-edge advancements in filtration technologies, including the application of new materials and strategies for improving filtration efficiency. In addition, the paper provides a comprehensive review of the latest research on regeneration technologies, particularly those aimed at improving regeneration efficiency and reducing energy consumption during the regeneration process. The paper highlights and compares the advantages and disadvantages of various DPF regeneration methods and the pollutant emissions during the regeneration process. Additionally, this review discusses the research hotspots for DPF under the new regulatory framework and explores the future directions of DPF development based on current research. This review provides valuable insights for promoting DPF technology to meet future emission regulations and contributes to achieving near-zero emissions for internal combustion engines.
{"title":"Overview of technological development challenges of diesel particulate filters adapting to future emission regulations","authors":"Zhongqiang Bao, Hao Chen, Limin Geng, Donghui Qi, Han Wu, Xuegong Yan, Zhenhua Ji, Peng Zhang, Fengyu Sun, Wenbo Zhang","doi":"10.1016/j.cej.2025.159982","DOIUrl":"https://doi.org/10.1016/j.cej.2025.159982","url":null,"abstract":"In order to address air pollution and global climate change, countries around the world have established regulations to limit pollutant emissions. Therefore, aftertreatment technologies, such as diesel particulate filters (DPFs), must be employed to filter Particulate matter from the exhaust gases and meet the emission limits set by regulations. This paper reviews the composition of diesel particulate matter, the principles and structure of DPFs, and the recent changes in emission regulations. It also examines the technological evolution of DPF systems in response to stricter standards. Furthermore, it explores cutting-edge advancements in filtration technologies, including the application of new materials and strategies for improving filtration efficiency. In addition, the paper provides a comprehensive review of the latest research on regeneration technologies, particularly those aimed at improving regeneration efficiency and reducing energy consumption during the regeneration process. The paper highlights and compares the advantages and disadvantages of various DPF regeneration methods and the pollutant emissions during the regeneration process. Additionally, this review discusses the research hotspots for DPF under the new regulatory framework and explores the future directions of DPF development based on current research. This review provides valuable insights for promoting DPF technology to meet future emission regulations and contributes to achieving near-zero emissions for internal combustion engines.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"6 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143050602","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Potassium-ion batteries (PIBs) with huge advantages of low cost and high energy density have been considered to be one of the most potential energy storage technologies for grid-level storage of renewable energy. As the heart of PIBs, the electrolytes demonstrate determined role in the electrochemically K-storage thermodynamics and kinetics. This review presents the recent progress on the electrolyte design for PIBs, including the solvents (organic solvents and ionic liquids), salt species and concentrations, as well as additives. Importantly, the design principles and interfacial formation mechanisms of solid-electrolyte interphases (SEI) based on electrolyte engineering and artificial SEI strategies are summarized. Subsequently, the successful manipulation of SEI on various anode materials including carbon, alloy-type, metal sulfides, and organic materials are systematically presented. Finally, the future development directions including the multiple molecular design of advanced metal salts and solvents, electrolyte solvation manipulations, as well as precise characterizations for deep reveling and understanding of K-storage electrochemistries. This review provides a broad perspective on the electrolyte designs and interfacial mechanisms for fabricating high-performance PIBs.
{"title":"Recent progress in nonaqueous electrolytes and interfaces for potassium-ion batteries","authors":"Haobo Xia, Hao Lou, Luanjie Nie, Xiushan Wu, Zixia Lin, Qingxue Lai, Jing Zheng","doi":"10.1016/j.cej.2025.159970","DOIUrl":"https://doi.org/10.1016/j.cej.2025.159970","url":null,"abstract":"Potassium-ion batteries (PIBs) with huge advantages of low cost and high energy density have been considered to be one of the most potential energy storage technologies for grid-level storage of renewable energy. As the heart of PIBs, the electrolytes demonstrate determined role in the electrochemically K-storage thermodynamics and kinetics. This review presents the recent progress on the electrolyte design for PIBs, including the solvents (organic solvents and ionic liquids), salt species and concentrations, as well as additives. Importantly, the design principles and interfacial formation mechanisms of solid-electrolyte interphases (SEI) based on electrolyte engineering and artificial SEI strategies are summarized. Subsequently, the successful manipulation of SEI on various anode materials including carbon, alloy-type, metal sulfides, and organic materials are systematically presented. Finally, the future development directions including the multiple molecular design of advanced metal salts and solvents, electrolyte solvation manipulations, as well as precise characterizations for deep reveling and understanding of K-storage electrochemistries. This review provides a broad perspective on the electrolyte designs and interfacial mechanisms for fabricating high-performance PIBs.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"50 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143050782","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The potential of algal-bacterial granular sludge (ABGS) technology for converting the nutrient elements in brackish (1.5 % salinity, R1) and marine (3 % salinity, R2) aquaculture wastewaters into nutrient-rich fish feed products were evaluated. During 140 days’ operation, the average removal efficiencies of permanganate index (CODMn), total inorganic nitrogen (TIN) and total phosphorus were 98.2 %, 69.6 %, and 64.9 % in R1, 92.8 %, 65.2 %, and 57.4 % in R2, respectively. An increased salinity from 1.5 % to 3 % greatly inhibits the nitrification–denitrification pathway, especially the nitrification process, and the relative abundances of nitrification and denitrification bacteria decreased by 64.2 % and 12.9 %, respectively. In comparison, the ammonium assimilation metabolism was improved at the higher salinity of 3 %, and the relative abundance of microorganisms involved in biosynthesis of amino acids increased by 9.4 %. At the end of the experiment, the contents of crude proteins in the biomass of R1 and R2 were 33.1 % and 41.3 % (dry mass based), and the corresponding conversion efficiencies of TIN to biomass organic nitrogen in R1 and R2 were 5.5 % and 7.1 %, respectively. Both granules cultivating with brackish and marine aquaculture wastewaters had high crude protein contents and desirable amino acid compositions, and they are rich in Mg, K, P, and Fe elements. The nutrient-rich ABGS can be utilized in-situ as low-cost and carbon neutral feed additives for fish.
{"title":"Nutrient reclamation from brackish and marine aquaculture wastewaters as fish feed additives using algal-bacterial granular sludge technology","authors":"Biao Zhang, Liang Zhao, Zhongcheng Ke, Yongjie Liu, Jingwen Wang, Wenli Huang, Fei Yang, Weiwei Huang","doi":"10.1016/j.cej.2025.160002","DOIUrl":"https://doi.org/10.1016/j.cej.2025.160002","url":null,"abstract":"The potential of algal-bacterial granular sludge (ABGS) technology for converting the nutrient elements in brackish (1.5 % salinity, R1) and marine (3 % salinity, R2) aquaculture wastewaters into nutrient-rich fish feed products were evaluated. During 140 days’ operation, the average removal efficiencies of permanganate index (COD<sub>Mn</sub>), total inorganic nitrogen (TIN) and total phosphorus were 98.2 %, 69.6 %, and 64.9 % in R1, 92.8 %, 65.2 %, and 57.4 % in R2, respectively. An increased salinity from 1.5 % to 3 % greatly inhibits the nitrification–denitrification pathway, especially the nitrification process, and the relative abundances of nitrification and denitrification bacteria decreased by 64.2 % and 12.9 %, respectively. In comparison, the ammonium assimilation metabolism was improved at the higher salinity of 3 %, and the relative abundance of microorganisms involved in biosynthesis of amino acids increased by 9.4 %. At the end of the experiment, the contents of crude proteins in the biomass of R1 and R2 were 33.1 % and 41.3 % (dry mass based), and the corresponding conversion efficiencies of TIN to biomass organic nitrogen in R1 and R2 were 5.5 % and 7.1 %, respectively. Both granules cultivating with brackish and marine aquaculture wastewaters had high crude protein contents and desirable amino acid compositions, and they are rich in Mg, K, P, and Fe elements. The nutrient-rich ABGS can be utilized in-situ as low-cost and carbon neutral feed additives for fish.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"50 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143050790","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Wearable electronic devices are important interfaces for human motion detection and human–computer interaction. However, the current sensing equipment has low sensitivity and poor crosstalk prevention capability, which cannot meet the demand. Herein, we propose a secondary enhanced electrode fabrication strategy for the preparation of multifunctional sensors. The sensor consists of a top electrode CC@NiAl-LDH with a secondary enhancement structure, the photo-reticulated strain localization films (prslPDMS) as the separator layer, and a bottom electrode silver nanowire layer. The synergistic effect of the prslPDMS and the top electrode sensing layer improves the anti-crosstalk ability and sensitivity of this sensor. Among them, CC@NiAl-LDH is not only used as a material for piezoresistive sensors, but also selected as a key component of TENG due to its excellent triboelectric properties. The structural advantages of prslPDMS and CC@NiAl-LDH as the sensing layer are verified by finite element simulation analysis. The designed sensor boasts an ultra-wide detection range (0–2000 kPa), ultra-high sensitivity (3.9 × 109 kPa−1), and rapid response and recovery times (25/30 ms). In addition, through the integration of machine learning algorithms, a multi-signal recognition system compatible with a variety of signal acquisition and analysis functions was designed, realizing multi-signal, multi-dimensional and high-precision recognition of sign language gestures, with an accuracy rate of more than 93 % for 15 gestures. This represents a significant milestone in the development of human–computer interaction. In addation direction of LDHs is also oriented towards application of NiAl-LDH materials in the field of triboelectric nanogenerators. Preliminary research showed that it has the ability to convert into electrical energy, providing new possibilities for self-powered systems in future wearable devices.
{"title":"Multi-layer fabric assembly ultra-high sensitivity dynamic anti-crosstalk sensing interactive interface based on secondary-enhanced microstructure for multi-task detection","authors":"Aijia Zhang, Yong Wang, Yueyue Ma, Qingzheng Jia, Ling Li, Youwei Zhao, Yucang Zhang, Wenming Zhang","doi":"10.1016/j.cej.2025.159938","DOIUrl":"https://doi.org/10.1016/j.cej.2025.159938","url":null,"abstract":"Wearable electronic devices are important interfaces for human motion detection and human–computer interaction. However, the current sensing equipment has low sensitivity and poor crosstalk prevention capability, which cannot meet the demand. Herein, we propose a secondary enhanced electrode fabrication strategy for the preparation of multifunctional sensors. The sensor consists of a top electrode CC@NiAl-LDH with a secondary enhancement structure, the photo-reticulated strain localization films (prslPDMS) as the separator layer, and a bottom electrode silver nanowire layer. The synergistic effect of the prslPDMS and the top electrode sensing layer improves the anti-crosstalk ability and sensitivity of this sensor. Among them, CC@NiAl-LDH is not only used as a material for piezoresistive sensors, but also selected as a key component of TENG due to its excellent triboelectric properties. The structural advantages of prslPDMS and CC@NiAl-LDH as the sensing layer are verified by finite element simulation analysis. The designed sensor boasts an ultra-wide detection range (0–2000 kPa), ultra-high sensitivity (3.9 × 10<sup>9</sup> kPa<sup>−1</sup>), and rapid response and recovery times (25/30 ms). In addition, through the integration of machine learning algorithms, a multi-signal recognition system compatible with a variety of signal acquisition and analysis functions was designed, realizing multi-signal, multi-dimensional and high-precision recognition of sign language gestures, with an accuracy rate of more than 93 % for 15 gestures. This represents a significant milestone in the development of human–computer interaction. In addation direction of LDHs is also oriented towards application of NiAl-LDH materials in the field of triboelectric nanogenerators. Preliminary research showed that it has the ability to convert into electrical energy, providing new possibilities for self-powered systems in future wearable devices.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"10 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143044293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The conversion-type materials’ considerable theoretical capacity and appropriate working potential provide a desirable anode for sodium-ion batteries (SIBs). Therefore, the work to develop new high electrochemical performance and low working potential conversion type anode materials has become vital to its practical application in SIBs. Herein, we first use zinc phosphate (Zn3(PO4)2, denoted as ZPO) as anode for SIBs. After modifying via chemical vapor deposition, the carbon coating ZPO (denoted as ZPO@C) as anode exhibits a reversible capacity of toward 315.7 mAh/g at 0.1C, accompanied by an ICE of 74.37 % and a 60 % capacity retention after 400 cycles at 10C with a broad temperature range from − 50 to 60 ℃. DFT calculations, XAFS, ex-situ XPS, and in-situ XRD are utilized to study the sodium storage mechanism, which clearly demonstrates the reversibly transform from Zn3(PO4)2 to Na3PO4 and Zn particles upon charge/discharge process. The sodium-ion full cell with ZPO@C as anode and Na3V2(PO4)3 (denoted as NVP) as cathode shows an outstanding electrochemical performance with an ultra-wide operating temperature from − 50 to 60 ℃. Therefore, the work can provide a basis for further development of new conversion-type anode materials for SIBs.
{"title":"Towards a widely operate temperature sodium-ion battery via a new zinc phosphate anode material","authors":"Xinyao Chen, Zhenming Xu, Yao Liu, Guodong Li, Shaoyuan Zhao, Xiue Zhang, Yonggang Wang, Yongjie Cao, Congxiao Wang, Yongyao Xia","doi":"10.1016/j.cej.2025.160014","DOIUrl":"https://doi.org/10.1016/j.cej.2025.160014","url":null,"abstract":"The conversion-type materials’ considerable theoretical capacity and appropriate working potential provide a desirable anode for sodium-ion batteries (SIBs). Therefore, the work to develop new high electrochemical performance and low working potential conversion type anode materials has become vital to its practical application in SIBs. Herein, we first use zinc phosphate (Zn<sub>3</sub>(PO<sub>4</sub>)<sub>2</sub>, denoted as ZPO) as anode for SIBs. After modifying via chemical vapor deposition, the carbon coating ZPO (denoted as ZPO@C) as anode exhibits a reversible capacity of toward 315.7 mAh/g at 0.1C, accompanied by an ICE of 74.37 % and a 60 % capacity retention after 400 cycles at 10C with a broad temperature range from − 50 to 60 ℃. DFT calculations, XAFS, <em>ex-situ</em> XPS, and <em>in-situ</em> XRD are utilized to study the sodium storage mechanism, which clearly demonstrates the reversibly transform from Zn<sub>3</sub>(PO<sub>4</sub>)<sub>2</sub> to Na<sub>3</sub>PO<sub>4</sub> and Zn particles upon charge/discharge process. The sodium-ion full cell with ZPO@C as anode and Na<sub>3</sub>V<sub>2</sub>(PO<sub>4</sub>)<sub>3</sub> (denoted as NVP) as cathode shows an outstanding electrochemical performance with an ultra-wide operating temperature from − 50 to 60 ℃. Therefore, the work can provide a basis for further development of new conversion-type anode materials for SIBs.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"42 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143050586","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-01-27DOI: 10.1016/j.cej.2025.159997
Tong Shi, Mengjie Liu, Wenzheng Yu
The ultrafiltration process has been widely used in drinking water treatment, but membrane contamination remains a major problem limiting its application. In this study, we investigated the impact of sulfate ions (SO42-) on coagulation performance and subsequent ultrafiltration (UF). The results indicated that 0.5 mM sulfate with PACl25-based coagulation significantly mitigates transmembrane pressure (TMP) development during continuous UF operation. Since the removal efficiency of organic matter was unaffected by the addition of sulfate, the variation in fouling observed in the experiment was mainly attributed to the changes in floc properties. The results showed that a moderate amount of sulfate ions promoted the formation of larger, looser floc particles, as well as the generation of a more crystalline filter cake layer. These microstructural changes not only helped to reduce membrane fouling but also made it easier to remove contaminants from the membrane surface by backwashing, thereby improving the operational efficiency and stability of the membrane filtration system. The findings of this study contributed to a deeper understanding of coagulation and membrane fouling processes in water treatment. Additionally, it provided theoretical support and practical guidance for optimizing membrane filtration.
{"title":"Sulfate-assisted coagulation mitigates ultrafiltration membrane fouling by regulating the structure of the cake layer","authors":"Tong Shi, Mengjie Liu, Wenzheng Yu","doi":"10.1016/j.cej.2025.159997","DOIUrl":"https://doi.org/10.1016/j.cej.2025.159997","url":null,"abstract":"The ultrafiltration process has been widely used in drinking water treatment, but membrane contamination remains a major problem limiting its application. In this study, we investigated the impact of sulfate ions (SO<sub>4</sub><sup>2-</sup>) on coagulation performance and subsequent ultrafiltration (UF). The results indicated that 0.5 mM sulfate with PACl<sub>25</sub>-based coagulation significantly mitigates transmembrane pressure (TMP) development during continuous UF operation. Since the removal efficiency of organic matter was unaffected by the addition of sulfate, the variation in fouling observed in the experiment was mainly attributed to the changes in floc properties. The results showed that a moderate amount of sulfate ions promoted the formation of larger, looser floc particles, as well as the generation of a more crystalline filter cake layer. These microstructural changes not only helped to reduce membrane fouling but also made it easier to remove contaminants from the membrane surface by backwashing, thereby improving the operational efficiency and stability of the membrane filtration system. The findings of this study contributed to a deeper understanding of coagulation and membrane fouling processes in water treatment. Additionally, it provided theoretical support and practical guidance for optimizing membrane filtration.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"26 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143050562","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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