Ziwei Wang,Jiawei Li,Zhaoxuanxuan Chen,Zhanfang Ma,Hongliang Han
l-Histidine (l-His), as a semiessential amino acid in the human body, plays a crucial role in maintaining normal physiological functions, and abnormal levels of l-His may lead to the occurrence of various diseases. Therefore, achieving an ultrasensitive sensing interface for l-His is of critical importance for the clinical diagnosis and treatment of related diseases. Currently, the signal conduction mode of a molecularly imprinted electrochemical sensing interface for l-His mainly relies on the electrochemical activity of the target itself or changes in electrical signals caused by alterations in the impedance of the sensing interface. However, the two modes are limited by the weak electrochemical activity of the target itself and the susceptibility of the sensing interface to nonspecific adsorption interference, resulting in reduced sensitivity and selectivity of the sensing interface. Herein, a fragment-imprinted synergistic unlocking signal amplification activation strategy based on the probe labeling mode is proposed. Utilizing copper ion (Cu2+)-bridged silver nanoparticles ((AgNP-l-Cys-Cu2+)n), a (AgNP-l-Cys-Cu2+)n nanocomposite signal amplification probe is designed to label l-His fixed in fragment-molecularly imprinted polymers (F-MIP) through strong coordination, achieving ultrasensitive and specific electrochemical detection of l-His. The sensing interface can recognize l-His at the picomolar level, and the imprinting factor reached 6.74. This strategy provides a rational route to improve the performance of the MIP electrochemical sensing interfaces.
{"title":"Fragment-Imprinted Synergistic Copper Ion-Bridged Silver Nanocomposites Unlock Signal Activation for Picomolar-Level Sensing of l-Histidine","authors":"Ziwei Wang,Jiawei Li,Zhaoxuanxuan Chen,Zhanfang Ma,Hongliang Han","doi":"10.1021/acsami.6c00784","DOIUrl":"https://doi.org/10.1021/acsami.6c00784","url":null,"abstract":"l-Histidine (l-His), as a semiessential amino acid in the human body, plays a crucial role in maintaining normal physiological functions, and abnormal levels of l-His may lead to the occurrence of various diseases. Therefore, achieving an ultrasensitive sensing interface for l-His is of critical importance for the clinical diagnosis and treatment of related diseases. Currently, the signal conduction mode of a molecularly imprinted electrochemical sensing interface for l-His mainly relies on the electrochemical activity of the target itself or changes in electrical signals caused by alterations in the impedance of the sensing interface. However, the two modes are limited by the weak electrochemical activity of the target itself and the susceptibility of the sensing interface to nonspecific adsorption interference, resulting in reduced sensitivity and selectivity of the sensing interface. Herein, a fragment-imprinted synergistic unlocking signal amplification activation strategy based on the probe labeling mode is proposed. Utilizing copper ion (Cu2+)-bridged silver nanoparticles ((AgNP-l-Cys-Cu2+)n), a (AgNP-l-Cys-Cu2+)n nanocomposite signal amplification probe is designed to label l-His fixed in fragment-molecularly imprinted polymers (F-MIP) through strong coordination, achieving ultrasensitive and specific electrochemical detection of l-His. The sensing interface can recognize l-His at the picomolar level, and the imprinting factor reached 6.74. This strategy provides a rational route to improve the performance of the MIP electrochemical sensing interfaces.","PeriodicalId":5,"journal":{"name":"ACS Applied Materials & Interfaces","volume":"1 1","pages":""},"PeriodicalIF":9.5,"publicationDate":"2026-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146152409","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-02-11DOI: 10.1021/acs.nanolett.5c06186
Yu Feng,Jiefeng Luo,Xue Han,Yuqiang Wu,Kai Zhang,Yu Wang,Saisai Li,Saif M. H. Qaid,Yuanzhi Jiang,Mingjian Yuan
Buried interfacial energy alignment critically affects the performance of the inverted PSCs. Achieving an ideal alignment remains challenging as reliable strategies for precisely tuning the electronic structures of individual SAMs are still elusive. Here, we develop an in-situ click chemistry strategy under mild conditions and with high intrinsic reactivity to construct mixed SAMs with tunable energy levels. By modulation of precursor ratios, molecular coupling and energy-level modulation occur simultaneously. This strategy mitigates steric hindrance and competitive adsorption in conventional blending, enabling seamless energy alignment (ΔE = ∼0.01 eV) and improved interfacial properties. Calculations indicate that reduced electron localization in SAMs from this strategy facilitates enhanced charge transport. Optoelectronic characterizations confirm that mixed-SAMs/perovskite interfaces enhance hole extraction and suppress interfacial nonradiative recombination. Using this strategy, PSCs achieve a PCE of 26.83% (certified: 26.46%) and maintain 93% of initial efficiency after 2,000 h (ISOS-L-2), demonstrating universality across various perovskite compositions.
埋藏界面能排列对倒置聚氯乙烯的性能有重要影响。实现理想的对准仍然具有挑战性，因为精确调整单个sam电子结构的可靠策略仍然难以捉摸。在这里，我们开发了一种在温和条件下的原位点击化学策略，并具有高的内在反应性来构建具有可调能级的混合SAMs。通过调制前驱体比例，分子偶联和能级调制同时发生。该策略减轻了传统共混中的位阻和竞争性吸附，实现了无缝的能量排列（ΔE = ~ 0.01 eV）并改善了界面性能。计算表明，这种策略降低了SAMs中的电子局域化，促进了电荷输运。光电表征证实，混合的sams /钙钛矿界面增强了空穴提取，抑制了界面的非辐射复合。使用该策略，PSCs的PCE达到26.83%（认证为26.46%），并在2000 h后保持93%的初始效率（iso - l -2），证明了各种钙钛矿成分的普遍性。
{"title":"In Situ Click Chemistry for Energy-Level-Tunable Mixed Self-Assembled Monolayers in Perovskite Solar Cells","authors":"Yu Feng,Jiefeng Luo,Xue Han,Yuqiang Wu,Kai Zhang,Yu Wang,Saisai Li,Saif M. H. Qaid,Yuanzhi Jiang,Mingjian Yuan","doi":"10.1021/acs.nanolett.5c06186","DOIUrl":"https://doi.org/10.1021/acs.nanolett.5c06186","url":null,"abstract":"Buried interfacial energy alignment critically affects the performance of the inverted PSCs. Achieving an ideal alignment remains challenging as reliable strategies for precisely tuning the electronic structures of individual SAMs are still elusive. Here, we develop an in-situ click chemistry strategy under mild conditions and with high intrinsic reactivity to construct mixed SAMs with tunable energy levels. By modulation of precursor ratios, molecular coupling and energy-level modulation occur simultaneously. This strategy mitigates steric hindrance and competitive adsorption in conventional blending, enabling seamless energy alignment (ΔE = ∼0.01 eV) and improved interfacial properties. Calculations indicate that reduced electron localization in SAMs from this strategy facilitates enhanced charge transport. Optoelectronic characterizations confirm that mixed-SAMs/perovskite interfaces enhance hole extraction and suppress interfacial nonradiative recombination. Using this strategy, PSCs achieve a PCE of 26.83% (certified: 26.46%) and maintain 93% of initial efficiency after 2,000 h (ISOS-L-2), demonstrating universality across various perovskite compositions.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"7 1","pages":""},"PeriodicalIF":10.8,"publicationDate":"2026-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146152526","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Narrowband green emission in CaF2: U6+ phosphors via dynamic F–O coordination and defect synergy","authors":"Dilare Halmurat, Xinyu Zhang, Litipu Aihaiti, Rong-Jun Xie","doi":"10.1016/j.jmat.2026.101185","DOIUrl":"https://doi.org/10.1016/j.jmat.2026.101185","url":null,"abstract":"","PeriodicalId":16173,"journal":{"name":"Journal of Materiomics","volume":"30 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2026-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146152799","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-02-11DOI: 10.1016/j.ijfatigue.2026.109563
Hu xiaoan, Xiao Baolu, Sui Tianxiao, Yang Qinzheng
{"title":"Thermomechanical fatigue damage mechanisms and life prediction of thin-walled nickel-based superalloy tubes considering temperature gradients effect","authors":"Hu xiaoan, Xiao Baolu, Sui Tianxiao, Yang Qinzheng","doi":"10.1016/j.ijfatigue.2026.109563","DOIUrl":"https://doi.org/10.1016/j.ijfatigue.2026.109563","url":null,"abstract":"","PeriodicalId":14112,"journal":{"name":"International Journal of Fatigue","volume":"35 1","pages":""},"PeriodicalIF":6.0,"publicationDate":"2026-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146152924","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-02-11DOI: 10.1016/j.electacta.2026.148442
Yi Liu, Qinqi Zhan, Peng Deng, Yanhong Yin
{"title":"Homogeneous Co2MoS4 on Carbon Nanotube Macrofilms as a Bifunctional Freestanding Electrode for Overall Water Splitting","authors":"Yi Liu, Qinqi Zhan, Peng Deng, Yanhong Yin","doi":"10.1016/j.electacta.2026.148442","DOIUrl":"https://doi.org/10.1016/j.electacta.2026.148442","url":null,"abstract":"","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"18 1","pages":""},"PeriodicalIF":6.6,"publicationDate":"2026-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146153141","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Coacervates offer dynamic environments for molecular organization. Using complex coacervates of poly-L-lysine and anionic fluorophores, we show that coacervate microenvironment modulates dye photophysical properties through competing effects: fluorescence enhancement via local enrichment and aggregation-induced quenching at higher loading, while enabling energy transfer. These insights establish coacervates as versatile templates for designing adaptive nanoscale photonic and energy-transfer materials.
{"title":"Coacervate Microenvironments Modulate Fluorescent Dye Behaviour and Förster Energy Transfer Dynamics","authors":"Mohit Kumar, Minea Kapzidic, Shikha Dhiman","doi":"10.1039/d5nr04690d","DOIUrl":"https://doi.org/10.1039/d5nr04690d","url":null,"abstract":"Coacervates offer dynamic environments for molecular organization. Using complex coacervates of poly-L-lysine and anionic fluorophores, we show that coacervate microenvironment modulates dye photophysical properties through competing effects: fluorescence enhancement via local enrichment and aggregation-induced quenching at higher loading, while enabling energy transfer. These insights establish coacervates as versatile templates for designing adaptive nanoscale photonic and energy-transfer materials.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":"89 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2026-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146153237","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：