Rosa Catania, George R Heath, Michael Rappolt, Stephen P Muench, Paul A Beales, Lars J C Jeuken
Hybrid membranes, consisting of phospholipids and amphiphilic block polymers, offer enhanced stability compared to liposomes and greater biocompatibility than polymersomes. These qualities make them a versatile platform for a wide range of applications across various fields. In this study, we have investigated the ability of solid-supported polymer-lipid hybrid membranes (SSHM) to act as a platform for bioelectrochemistry of membrane proteins. The redox enzyme, cytochrome bo3 (cyt bo3 ), a terminal oxidase in Escherichia coli, was reconstituted into hybrid vesicles (HVs), which were subsequently tested for their ability to form SSHMs on different self-assembled monolayers (SAMs) on gold electrodes. SSHM formation was monitored with electrochemical impedance spectroscopy (EIS), quartz crystal microbalance with dissipation (QCM-D), and atomic force microscopy (AFM). SSHMs were successfully formed on gold electrodes with mixed SAMs of 6-mercapto-1-hexanol and 1-hexanethiol at a 1 : 1 ratio. The activity of cyt bo3 was confirmed using cyclic voltammetry (CV), with electron transfer to cyt bo3 mediated by a lipophilic substrate-analogue decylubiquinone (DQ). SSHMs formed with HVs-cyt bo3 samples, stored for more than one year before use, remain bioelectrocatalytically active, confirming our previously established longevity and stability of HV systems.
{"title":"Solid-supported polymer-lipid hybrid membrane for bioelectrochemistry of a membrane redox enzyme.","authors":"Rosa Catania, George R Heath, Michael Rappolt, Stephen P Muench, Paul A Beales, Lars J C Jeuken","doi":"10.1039/d4lf00362d","DOIUrl":"10.1039/d4lf00362d","url":null,"abstract":"<p><p>Hybrid membranes, consisting of phospholipids and amphiphilic block polymers, offer enhanced stability compared to liposomes and greater biocompatibility than polymersomes. These qualities make them a versatile platform for a wide range of applications across various fields. In this study, we have investigated the ability of solid-supported polymer-lipid hybrid membranes (SSHM) to act as a platform for bioelectrochemistry of membrane proteins. The redox enzyme, cytochrome <i>bo</i> <sub><i>3</i></sub> (cyt <i>bo</i> <sub><i>3</i></sub> ), a terminal oxidase in <i>Escherichia coli</i>, was reconstituted into hybrid vesicles (HVs), which were subsequently tested for their ability to form SSHMs on different self-assembled monolayers (SAMs) on gold electrodes. SSHM formation was monitored with electrochemical impedance spectroscopy (EIS), quartz crystal microbalance with dissipation (QCM-D), and atomic force microscopy (AFM). SSHMs were successfully formed on gold electrodes with mixed SAMs of 6-mercapto-1-hexanol and 1-hexanethiol at a 1 : 1 ratio. The activity of cyt <i>bo</i> <sub><i>3</i></sub> was confirmed using cyclic voltammetry (CV), with electron transfer to cyt <i>bo</i> <sub><i>3</i></sub> mediated by a lipophilic substrate-analogue decylubiquinone (DQ). SSHMs formed with HVs-cyt <i>bo</i> <sub><i>3</i></sub> samples, stored for more than one year before use, remain bioelectrocatalytically active, confirming our previously established longevity and stability of HV systems.</p>","PeriodicalId":101138,"journal":{"name":"RSC Applied Interfaces","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11834424/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143470335","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Shelley A. Claridge, Jianbin Huang, Serena Margadonna, Ryan Richards and Federico Rosei
A graphical abstract is available for this content
此内容的图形摘要可用
{"title":"The first year of RSC Applied Interfaces: a retrospective","authors":"Shelley A. Claridge, Jianbin Huang, Serena Margadonna, Ryan Richards and Federico Rosei","doi":"10.1039/D4LF90034K","DOIUrl":"https://doi.org/10.1039/D4LF90034K","url":null,"abstract":"<p >A graphical abstract is available for this content</p>","PeriodicalId":101138,"journal":{"name":"RSC Applied Interfaces","volume":" 1","pages":" 11-13"},"PeriodicalIF":0.0,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/lf/d4lf90034k?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142994269","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xiangzhen Zheng, Tao Huang, Ying Pan, Yongwei Chen, Mingdeng Wei and Maoxiang Wu
Phosphite derivatives as film forming additives can effectively improve the electrochemical performance of cathodes in Li-ion batteries (LIBs). In this work, ethyl bis(trimethylsilyl) phosphite (TMSPE), which contains trimethylsilyl and ethyl functional groups, is used as a P-based additive for improving the electrochemical performance of a Li1.144Ni0.136Co0.136Mn0.544O2 cathode. Further, the comparative evaluation of tris(trimethylsilyl) phosphite (TMSPi), TMSPE, and triethyl phosphite (TEP) as phosphite-based additives for Li1.144Ni0.136Co0.136Mn0.544O2/Li cells at 45 °C under a high voltage is also presented. Theoretical calculations and surface characterization revealed that TMSPE formed a thinner and stable cathode electrolyte interphase (CEI) on the surface of Li1.144Ni0.136Co0.136Mn0.544O2, which has lower interfacial impedance, stronger HF elimination, and transition metal dissolution inhibition, resulting in the best cell performance among the three phosphite-based additives.
{"title":"A phosphite derivative with stronger HF elimination ability as an additive for Li-rich based lithium-ion batteries at elevated temperatures†","authors":"Xiangzhen Zheng, Tao Huang, Ying Pan, Yongwei Chen, Mingdeng Wei and Maoxiang Wu","doi":"10.1039/D4LF00326H","DOIUrl":"https://doi.org/10.1039/D4LF00326H","url":null,"abstract":"<p >Phosphite derivatives as film forming additives can effectively improve the electrochemical performance of cathodes in Li-ion batteries (LIBs). In this work, ethyl bis(trimethylsilyl) phosphite (TMSPE), which contains trimethylsilyl and ethyl functional groups, is used as a P-based additive for improving the electrochemical performance of a Li<small><sub>1.144</sub></small>Ni<small><sub>0.136</sub></small>Co<small><sub>0.136</sub></small>Mn<small><sub>0.544</sub></small>O<small><sub>2</sub></small> cathode. Further, the comparative evaluation of tris(trimethylsilyl) phosphite (TMSPi), TMSPE, and triethyl phosphite (TEP) as phosphite-based additives for Li<small><sub>1.144</sub></small>Ni<small><sub>0.136</sub></small>Co<small><sub>0.136</sub></small>Mn<small><sub>0.544</sub></small>O<small><sub>2</sub></small>/Li cells at 45 °C under a high voltage is also presented. Theoretical calculations and surface characterization revealed that TMSPE formed a thinner and stable cathode electrolyte interphase (CEI) on the surface of Li<small><sub>1.144</sub></small>Ni<small><sub>0.136</sub></small>Co<small><sub>0.136</sub></small>Mn<small><sub>0.544</sub></small>O<small><sub>2</sub></small>, which has lower interfacial impedance, stronger HF elimination, and transition metal dissolution inhibition, resulting in the best cell performance among the three phosphite-based additives.</p>","PeriodicalId":101138,"journal":{"name":"RSC Applied Interfaces","volume":" 1","pages":" 251-260"},"PeriodicalIF":0.0,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/lf/d4lf00326h?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142994249","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Marcella Salvatore, Francesco Reda, Fabio Borbone and Stefano Luigi Oscurato
Azopolymer-based maskless lithography enables direct, all-optical fabrication of complex surface patterns. However, typical surface reliefs are limited to smooth profiles. Here, by investigating the resolution, contrast ratio, and gray-scale nonlinearities of a holo-lithographic setup based on computer-generated holography, we extend this patterning approach to fabricate, for the first time, multilevel reliefs with step-like discontinuities.
{"title":"Multilevel azopolymer patterning from digital holographic lithography","authors":"Marcella Salvatore, Francesco Reda, Fabio Borbone and Stefano Luigi Oscurato","doi":"10.1039/D4LF00358F","DOIUrl":"https://doi.org/10.1039/D4LF00358F","url":null,"abstract":"<p >Azopolymer-based maskless lithography enables direct, all-optical fabrication of complex surface patterns. However, typical surface reliefs are limited to smooth profiles. Here, by investigating the resolution, contrast ratio, and gray-scale nonlinearities of a holo-lithographic setup based on computer-generated holography, we extend this patterning approach to fabricate, for the first time, multilevel reliefs with step-like discontinuities.</p>","PeriodicalId":101138,"journal":{"name":"RSC Applied Interfaces","volume":" 1","pages":" 56-60"},"PeriodicalIF":0.0,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/lf/d4lf00358f?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142994239","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mahaboobbatcha Aleem, Ramakrishnan Vishnuraj and Biji Pullithadathil
Nitrogen dioxide (NO2) is a toxic gas that can cause respiratory problems, and sensing its presence is crucial for environmental monitoring and industrial safety. This investigation presents a novel approach towards sensing NO2 gas by utilizing partially completed/recycled silicon solar cells employing a metal-assisted etching process to fabricate a high-performance p-black-silicon based sensor. Structural and morphological analyses using X-ray diffraction patterns, Raman spectroscopy and cross sectional FESEM characterization confirm the integrity of the p-B-silicon sensor. By combining recycling techniques with advanced fabrication methods, the resulting sensor exhibits exceptional sensitivity, a low detection limit of 1 ppm, and rapid response times (12–14 s) when exposed to NO2 gas concentrations ranging from 1 to 5 ppm. The enhanced sensitivity is attributed to the unique nanostructured comb-like morphology of the sensor material, which facilitates fast charge transport mechanisms, and a plausible sensing mechanism has been proposed and explained using a depletion model diagram and energy model diagram. This eco-friendly and cost-effective solution not only addresses electronic waste concerns but also highlights the potential of sustainable practices in scientific research. The findings emphasize on the importance of environmental consciousness and innovation, showcasing a promising future for gas sensing technology. By utilizing recycled materials and advanced fabrication techniques, this study contributes to the development of efficient, eco-friendly sensors for environmental monitoring applications, paving the way for a more sustainable and technologically advanced future in the field of gas sensors.
{"title":"Recycled silicon solar cell-derived nanostructured p-black silicon device for high performance NO2 gas sensor applications†","authors":"Mahaboobbatcha Aleem, Ramakrishnan Vishnuraj and Biji Pullithadathil","doi":"10.1039/D4LF00299G","DOIUrl":"https://doi.org/10.1039/D4LF00299G","url":null,"abstract":"<p >Nitrogen dioxide (NO<small><sub>2</sub></small>) is a toxic gas that can cause respiratory problems, and sensing its presence is crucial for environmental monitoring and industrial safety. This investigation presents a novel approach towards sensing NO<small><sub>2</sub></small> gas by utilizing partially completed/recycled silicon solar cells employing a metal-assisted etching process to fabricate a high-performance p-black-silicon based sensor. Structural and morphological analyses using X-ray diffraction patterns, Raman spectroscopy and cross sectional FESEM characterization confirm the integrity of the p-B-silicon sensor. By combining recycling techniques with advanced fabrication methods, the resulting sensor exhibits exceptional sensitivity, a low detection limit of 1 ppm, and rapid response times (12–14 s) when exposed to NO<small><sub>2</sub></small> gas concentrations ranging from 1 to 5 ppm. The enhanced sensitivity is attributed to the unique nanostructured comb-like morphology of the sensor material, which facilitates fast charge transport mechanisms, and a plausible sensing mechanism has been proposed and explained using a depletion model diagram and energy model diagram. This eco-friendly and cost-effective solution not only addresses electronic waste concerns but also highlights the potential of sustainable practices in scientific research. The findings emphasize on the importance of environmental consciousness and innovation, showcasing a promising future for gas sensing technology. By utilizing recycled materials and advanced fabrication techniques, this study contributes to the development of efficient, eco-friendly sensors for environmental monitoring applications, paving the way for a more sustainable and technologically advanced future in the field of gas sensors.</p>","PeriodicalId":101138,"journal":{"name":"RSC Applied Interfaces","volume":" 1","pages":" 220-229"},"PeriodicalIF":0.0,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/lf/d4lf00299g?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142994264","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
O.-M. Hiltunen, T. Suominen, J. Aho, M. Otaki, A. Zupanc, S. Hietala, G. Silvennoinen and R. Koivula
Surface functionalization of metal oxides with phosphonic acid monolayers by covalent bonding enables the generation of robust hybrid materials with enhanced separation properties. Mesoporous crystalline zirconia and titania serve as applicable inorganic supports with high thermal stability and resistance to oxidation, acidity and radiolysis. We have fabricated selective solid phase extractants that efficiently separate americium and europium from each other, via straightforward grafting of the zirconia and titania surfaces with N- and S-donor complexing agents, namely 2,6-bis-triazolyl-pyridine derivatives. Separation factors (Am/Eu) up to 13 were obtained in binary solution at pH 2 and preference for Am over Eu was observed even in Eu excess solution. These stable hybrid materials can be utilized for separation purposes without substantial degradation, providing advantageous reusability and a greener option in comparison to commonly used solvent extraction methods.
{"title":"Selective separation of Am(iii)/Eu(iii) using heterocyclic bistriazolyl phosphonate grafted zirconia and titania solid phase extractants†","authors":"O.-M. Hiltunen, T. Suominen, J. Aho, M. Otaki, A. Zupanc, S. Hietala, G. Silvennoinen and R. Koivula","doi":"10.1039/D4LF00277F","DOIUrl":"https://doi.org/10.1039/D4LF00277F","url":null,"abstract":"<p >Surface functionalization of metal oxides with phosphonic acid monolayers by covalent bonding enables the generation of robust hybrid materials with enhanced separation properties. Mesoporous crystalline zirconia and titania serve as applicable inorganic supports with high thermal stability and resistance to oxidation, acidity and radiolysis. We have fabricated selective solid phase extractants that efficiently separate americium and europium from each other, <em>via</em> straightforward grafting of the zirconia and titania surfaces with N- and S-donor complexing agents, namely 2,6-bis-triazolyl-pyridine derivatives. Separation factors (Am/Eu) up to 13 were obtained in binary solution at pH 2 and preference for Am over Eu was observed even in Eu excess solution. These stable hybrid materials can be utilized for separation purposes without substantial degradation, providing advantageous reusability and a greener option in comparison to commonly used solvent extraction methods.</p>","PeriodicalId":101138,"journal":{"name":"RSC Applied Interfaces","volume":" 1","pages":" 279-291"},"PeriodicalIF":0.0,"publicationDate":"2024-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/lf/d4lf00277f?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142994238","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
High-voltage Ni-rich active materials are widely used in cathodes of high-energy-density lithium-ion batteries (LIBs). However, the high charge cutoff voltages lead to significant degradation and capacity fading, caused by electrolyte decomposition, transition metal dissolution, structural distortion, and more. Herein, we present an artificial cathode electrolyte interphase (ART-CEI) as a protective coating on the surface of the LiNi0.6Mn0.2Co0.2O2 (NMC622) cathode. A composite film, prepared from argyrodite Li6PS5Cl (LPSC) ion conducting nanoparticles and a polymerized ionic liquid (PIL) as a binder, was electrophoretically deposited on the surface of the cathode. We found that capacity retention at high-voltage operation (4.3 and 4.5 V) is improved due to the coating. Besides the stability improvement, the electrochemical performance of the coated cathode shows an enhancement in rate performance and lower resistances of the anode solid electrolyte interphase (SEI), the cathode electrolyte interphase (CEI), and charge transfer processes during cycling.
{"title":"Electrophoretically deposited artificial cathode electrolyte interphase for improved performance of NMC622 at high voltage operation†","authors":"Inbar Anconina and Diana Golodnitsky","doi":"10.1039/D4LF00319E","DOIUrl":"https://doi.org/10.1039/D4LF00319E","url":null,"abstract":"<p >High-voltage Ni-rich active materials are widely used in cathodes of high-energy-density lithium-ion batteries (LIBs). However, the high charge cutoff voltages lead to significant degradation and capacity fading, caused by electrolyte decomposition, transition metal dissolution, structural distortion, and more. Herein, we present an artificial cathode electrolyte interphase (ART-CEI) as a protective coating on the surface of the LiNi<small><sub>0.6</sub></small>Mn<small><sub>0.2</sub></small>Co<small><sub>0.2</sub></small>O<small><sub>2</sub></small> (NMC622) cathode. A composite film, prepared from argyrodite Li<small><sub>6</sub></small>PS<small><sub>5</sub></small>Cl (LPSC) ion conducting nanoparticles and a polymerized ionic liquid (PIL) as a binder, was electrophoretically deposited on the surface of the cathode. We found that capacity retention at high-voltage operation (4.3 and 4.5 V) is improved due to the coating. Besides the stability improvement, the electrochemical performance of the coated cathode shows an enhancement in rate performance and lower resistances of the anode solid electrolyte interphase (SEI), the cathode electrolyte interphase (CEI), and charge transfer processes during cycling.</p>","PeriodicalId":101138,"journal":{"name":"RSC Applied Interfaces","volume":" 1","pages":" 261-278"},"PeriodicalIF":0.0,"publicationDate":"2024-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/lf/d4lf00319e?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142994237","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Water adsorption has come under the spotlight for its tremendous potential in numerous environment- and energy-related applications. Given the vast adsorbent space, computational studies play a critically significant role in facilitating the discovery of potential candidates. However, large-scale computational deployment by conventional grand canonical Monte Carlo (GCMC) to identify optimal water adsorbents is challenging due to its extreme computation time and expense. In this work, a lattice GCMC method (LGCMC) with hierarchically constructed discretized interaction of host–guest and guest–guest driven by atomistic potentials was attempted to accurately and rapidly simulate the water adsorption performance of adsorbents using a coarse-grained Molinero water (mW) model. Nevertheless, given the monatomic nature of the mW model, leading to different phase behaviors in nanoscale confinement, a remarkable discrepancy in the primitive LGCMC-predicted isotherms, especially different step positions, compared with experiments was observed. Thus, a general correction strategy of water adsorption isotherm by tuning the saturation pressure was adopted. Taking metal–organic frameworks (MOFs) as examples, simulated water adsorption isotherms consistent with experimental results were obtained by the correction strategy using LGCMC. It is worth highlighting that the simulation of water adsorption in adsorbents by LGCMC can be accomplished within a few hours, which yields a significant acceleration of two to three orders of magnitude compared to conventional GCMC simulations. Therefore, the corrected LGCMC is a powerful tool to screen a huge number of adsorbents to facilitate the discovery of potential adsorbents for water adsorption-related applications, and this study provides microscopic insights into water adsorption mechanisms in porous adsorbents.
{"title":"High-efficiency prediction of water adsorption performance of porous adsorbents by lattice grand canonical Monte Carlo molecular simulation†","authors":"Zhilu Liu, Wei Li and Song Li","doi":"10.1039/D4LF00354C","DOIUrl":"https://doi.org/10.1039/D4LF00354C","url":null,"abstract":"<p >Water adsorption has come under the spotlight for its tremendous potential in numerous environment- and energy-related applications. Given the vast adsorbent space, computational studies play a critically significant role in facilitating the discovery of potential candidates. However, large-scale computational deployment by conventional grand canonical Monte Carlo (GCMC) to identify optimal water adsorbents is challenging due to its extreme computation time and expense. In this work, a lattice GCMC method (LGCMC) with hierarchically constructed discretized interaction of host–guest and guest–guest driven by atomistic potentials was attempted to accurately and rapidly simulate the water adsorption performance of adsorbents using a coarse-grained Molinero water (mW) model. Nevertheless, given the monatomic nature of the mW model, leading to different phase behaviors in nanoscale confinement, a remarkable discrepancy in the primitive LGCMC-predicted isotherms, especially different step positions, compared with experiments was observed. Thus, a general correction strategy of water adsorption isotherm by tuning the saturation pressure was adopted. Taking metal–organic frameworks (MOFs) as examples, simulated water adsorption isotherms consistent with experimental results were obtained by the correction strategy using LGCMC. It is worth highlighting that the simulation of water adsorption in adsorbents by LGCMC can be accomplished within a few hours, which yields a significant acceleration of two to three orders of magnitude compared to conventional GCMC simulations. Therefore, the corrected LGCMC is a powerful tool to screen a huge number of adsorbents to facilitate the discovery of potential adsorbents for water adsorption-related applications, and this study provides microscopic insights into water adsorption mechanisms in porous adsorbents.</p>","PeriodicalId":101138,"journal":{"name":"RSC Applied Interfaces","volume":" 1","pages":" 230-242"},"PeriodicalIF":0.0,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/lf/d4lf00354c?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142994265","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Shimao Sun, Hongchang Liu, Yuxin Chen, Hongwei Liu, Rongda Yu, Xingfu Zheng, Yunchao Li, Jian Zhu, Jinlan Xia and Jun Wang
Owing to its abundant reserves and high theoretical specific capacity, silica has been tested as an anode material for lithium-ion batteries. However, its utilization is limited by volume expansion during cycling and low electrical conductivity. Most studies have focused on designing nanostructures of SiO2 or combining them with conductive phases to solve this problem. In this work, diatom-based biological silica with a natural hollow porous structure was used as a template to prepare diatom-based silica anode materials coated with Mn2SiO4 nanoclusters via a hydrothermal method. A composite material with a structure of Mn2SiO4@C@SiO2 was obtained. The Mn/SiO2@C@SiO2 sandwich structure derived during electrochemical reduction has a high capacity and excellent rate performance and significantly inhibits the volume expansion of SiO2. The prepared anode material (AFD@C-Mn-40) with the Mn/SiO2@C@SiO2 structure retained a specific discharge capacity of approximately 1112 mA h g−1 after 100 cycles at 100 mA g−1, which provides new prospects for the large-scale application of silica.
二氧化硅储量丰富,理论比容量高,已作为锂离子电池的负极材料进行了测试。然而,它的利用受到循环过程中体积膨胀和低导电性的限制。大多数研究都集中在设计SiO2纳米结构或将其与导电相结合来解决这一问题。本研究以具有天然中空多孔结构的硅藻基生物二氧化硅为模板,通过水热法制备了包覆Mn2SiO4纳米团簇的硅藻基二氧化硅阳极材料。得到了结构为Mn2SiO4@C@SiO2的复合材料。电化学还原过程中生成的Mn/SiO2@C@SiO2夹层结构具有高容量和优异的速率性能,显著抑制了SiO2的体积膨胀。制备的Mn/SiO2@C@SiO2结构的负极材料(AFD@C-Mn-40)在100 mA g - 1下循环100次后仍保持约1112 mA h g - 1的放电比容量,为二氧化硅的大规模应用提供了新的前景。
{"title":"A diatom frustule-based Mn2SiO4@C@SiO2 multilayer-structure composite as a high-performance anode electrode material for lithium-ion batteries†","authors":"Shimao Sun, Hongchang Liu, Yuxin Chen, Hongwei Liu, Rongda Yu, Xingfu Zheng, Yunchao Li, Jian Zhu, Jinlan Xia and Jun Wang","doi":"10.1039/D4LF00324A","DOIUrl":"https://doi.org/10.1039/D4LF00324A","url":null,"abstract":"<p >Owing to its abundant reserves and high theoretical specific capacity, silica has been tested as an anode material for lithium-ion batteries. However, its utilization is limited by volume expansion during cycling and low electrical conductivity. Most studies have focused on designing nanostructures of SiO<small><sub>2</sub></small> or combining them with conductive phases to solve this problem. In this work, diatom-based biological silica with a natural hollow porous structure was used as a template to prepare diatom-based silica anode materials coated with Mn<small><sub>2</sub></small>SiO<small><sub>4</sub></small> nanoclusters <em>via</em> a hydrothermal method. A composite material with a structure of Mn<small><sub>2</sub></small>SiO<small><sub>4</sub></small>@C@SiO<small><sub>2</sub></small> was obtained. The Mn/SiO<small><sub>2</sub></small>@C@SiO<small><sub>2</sub></small> sandwich structure derived during electrochemical reduction has a high capacity and excellent rate performance and significantly inhibits the volume expansion of SiO<small><sub>2</sub></small>. The prepared anode material (AFD@C-Mn-40) with the Mn/SiO<small><sub>2</sub></small>@C@SiO<small><sub>2</sub></small> structure retained a specific discharge capacity of approximately 1112 mA h g<small><sup>−1</sup></small> after 100 cycles at 100 mA g<small><sup>−1</sup></small>, which provides new prospects for the large-scale application of silica.</p>","PeriodicalId":101138,"journal":{"name":"RSC Applied Interfaces","volume":" 1","pages":" 200-209"},"PeriodicalIF":0.0,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/lf/d4lf00324a?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142994262","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Akira Nomoto, Kentaro Shiraki and Tsukuru Minamiki
Protein–protein interactions (PPIs) are regulated by multiple interactions among amino acids. However, the contribution of individual amino acid–amino acid interactions (AAIs) in PPIs is currently unclear because it is difficult to analyze the weak and nonspecific interactions among amino acids. Therefore, we constructed a quantitative analytical model to evaluate AAIs using a device with self-assembled monolayers (SAMs). We could evaluate the μM-order dissociation constant between amino acids and the side chain of amino acids based on the electrical response. In the cationic amino acid group, concentration-dependent responses were observed on a negatively charged SAM (3-mercaptopropionic acid). These responses were modulated by the concentration and valence of the competing ions, which indicated that the strength of electrostatic interactions among amino acids is different. In contrast, nonspecific responses to all amino acids used in this study were obtained on a positively charged SAM (2-mercaptoethylamine). These results indicate that the selectivity of interaction depends on the type of side chain in the assembled state. We believe that the analytical platform constructed in this study can be adapted to evaluate various AAIs that govern PPIs.
{"title":"Analysis of interactions between amino acids and monolayers of charged side chains†","authors":"Akira Nomoto, Kentaro Shiraki and Tsukuru Minamiki","doi":"10.1039/D4LF00310A","DOIUrl":"https://doi.org/10.1039/D4LF00310A","url":null,"abstract":"<p >Protein–protein interactions (PPIs) are regulated by multiple interactions among amino acids. However, the contribution of individual amino acid–amino acid interactions (AAIs) in PPIs is currently unclear because it is difficult to analyze the weak and nonspecific interactions among amino acids. Therefore, we constructed a quantitative analytical model to evaluate AAIs using a device with self-assembled monolayers (SAMs). We could evaluate the μM-order dissociation constant between amino acids and the side chain of amino acids based on the electrical response. In the cationic amino acid group, concentration-dependent responses were observed on a negatively charged SAM (3-mercaptopropionic acid). These responses were modulated by the concentration and valence of the competing ions, which indicated that the strength of electrostatic interactions among amino acids is different. In contrast, nonspecific responses to all amino acids used in this study were obtained on a positively charged SAM (2-mercaptoethylamine). These results indicate that the selectivity of interaction depends on the type of side chain in the assembled state. We believe that the analytical platform constructed in this study can be adapted to evaluate various AAIs that govern PPIs.</p>","PeriodicalId":101138,"journal":{"name":"RSC Applied Interfaces","volume":" 1","pages":" 243-250"},"PeriodicalIF":0.0,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/lf/d4lf00310a?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142994248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}