The ring has been a romantic fascination throughout the ages,embodying not only beauty and order but also harboring numerous undisclosed properties awaiting discovery.In the realm of supramolecular chemistry,macrocycl...The ring has been a romantic fascination throughout the ages,embodying not only beauty and order but also harboring numerous undisclosed properties awaiting discovery.In the realm of supramolecular chemistry,macrocycles,with a cyclic structure and a central cavity like a doughnut,captivate the attention of scientists[1].In 1967,Pedersen's groundbreaking revelation that alkali metal ions could"fall into"the cavities of a cyclic ether named crown ether,even in organic solvents,unveiled a novel universe of macrocycle chemistry.Since then,numerous macrocyclic structures in nature have been discovered,isolated,and scrutinized.Drawing inspiration from nature,chemists endeavor to explore the vast potential of macrocyclic compounds by designing and synthesizing artificial macrocycles with diverse structural features and recognition properties.展开更多
Imitating the signal transduction and transmembrane transport co ntrolled by biological channels in the cell membra ne,artificial nanochannels with a similar capability of sensing and transport are constructed as bion...Imitating the signal transduction and transmembrane transport co ntrolled by biological channels in the cell membra ne,artificial nanochannels with a similar capability of sensing and transport are constructed as bionic nanochannels.To accomplish selective sensing and transport of biological analyte(as "vip"),the bionic nanochannels are modified with the artificial receptor(as "host"),Based on selective recognition between host and vip,bionic nanochannels translate the stimulus of the vip to electrochemical signal as sensors,and further regulate the transmission of vip as transporters.Howeve r,throughout all kinds of vips,the selective sensing and transpo rt of ions and chiral molecules is a challenging problem.And throughout all hosts of ions and chiral molecules,the macrocyclic hosts with multisite of recognition show better selectivity,such as crown ethers,cyclodextrins,calixarenes,and pillararenes.In this article,we highlight recent advances in the macrocyclic host-based nanochannels for the selective sensing and transport of ionic and chiral vips,summarize the similarities and differences of different kinds of macrocyclic host-based nanochannels,and expect the research direction and application prospect.展开更多
Supramolecular macrocyclic hosts,such as crown ethers,cucurbiturils,calixarenes,cyclodextrins,and pillararenes,have significantly advanced host-vip chemistry.However,their practical applications in functional materi...Supramolecular macrocyclic hosts,such as crown ethers,cucurbiturils,calixarenes,cyclodextrins,and pillararenes,have significantly advanced host-vip chemistry.However,their practical applications in functional materials are often limited by structural diversity constraints,suboptimal photophysical properties,and inherent nonemissive characteristics.To overcome these limitations,the orthogonal incorporation of aggregation-induced emission-active tetraphenylethene(TPE)units into macrocyclic skeletons has emerged as a promising strategy.This minireview systematically categorizes TPE-embedded macrocyclic hosts into three types,non-,semi-,and full-TPE-embedded,based on the skeleton of TPE integration,highlighting their molecular design principles,photophysical properties,and diverse applications.Drawing upon research advances from the past 5 years,this minireview underscores the dual functionality of conventional macrocyclic skeletons and TPE units,which stems from the restriction of intramolecular rotation mechanism.Furthermore,key challenges in molecular design and potential future research directions are outlined to guide the development of next-generation TPE-based macrocyclic hosts with tailored functionalities,thereby deepening the understanding of structure-property-function relationships.展开更多
Macrocyclic hosts play a crucial role in supramolecular chemistry and the development of supramolecular functional materials.Their well-defined cavities and diverse host-vip interactions endow macrocycles with excel...Macrocyclic hosts play a crucial role in supramolecular chemistry and the development of supramolecular functional materials.Their well-defined cavities and diverse host-vip interactions endow macrocycles with excellent stimuli responsiveness,facilitating efficient assembly construction.However,the limited availability of functional groups in conventional macrocycles restricts their ability to meet the demand for fabricating materials with multiple functionalities.To address this limitation,several research groups have introduced tetraphenylethylene(TPE),a well-known building block renowned for its remarkable aggregation-induced emission(AIE)effect,into the macrocycle framework.Herein,this paper summarizes the combination strategies and synergistic approaches that achieve multi-functionality by integrating TPE and macrocyclic architectures.The emission characteristics of TPE-embedded macrocycles are elucidated,and it is anticipated that more AIE-type macrocycles with innovative backbones and broad applications will emerge.展开更多
Herein we report an environmentally friendly and energy-efficient method for the adsorptive separation of toluene from toluene-alcohol azeotropes using porous crystalline fluorinated leaning pillar[6]arene(FLP6α),ach...Herein we report an environmentally friendly and energy-efficient method for the adsorptive separation of toluene from toluene-alcohol azeotropes using porous crystalline fluorinated leaning pillar[6]arene(FLP6α),achieving up to 100%purity.Moreover,FLP6αdemonstrates rapid adsorption and excellent recyclability.展开更多
Converting body heat into electricity presents an appealing route for sustainably powering wearable electronics;however,conventional thermoelectric materials face significant drawbacks,including high ionic concentrati...Converting body heat into electricity presents an appealing route for sustainably powering wearable electronics;however,conventional thermoelectric materials face significant drawbacks,including high ionic concentrations,toxicity,and limited thermoelectric efficiency.Here,we report an ionic thermoelectric hydrogel designed through precise supramolecular chemistry,utilizing dual molecular interactions,host-vip complexation ofα-cyclodextrin(α-CD)with I_(3)^(-)ions and hydrogen bonding between polyvinyl alcohol(PVA)polymer chains and I_(3)^(-).This molecularly tailored approach markedly amplifies thermoelectric performance,achieving a high thermopower of 2.21 mV/K and a tenfold enhancement in peak power output at an exceptionally low iodine concentration(10 mmol/L I^(-)+2.5 mmol/L I_(3)^(-)).The hydrogel maintains excellent biocompatibility and mechanical robustness,suitable for direct skin contact.Demonstrated applications include flexible thermoelectric devices generating nearly 100 mV from body heat and sensor arrays capable of motion and spatial temperature sensing.These results underscore the substantial potential of supramolecularly designed ionic thermoelectric hydrogels for wearable energy harvesting,personalized healthcare monitoring,and advanced human-computer interfaces.展开更多
文摘The ring has been a romantic fascination throughout the ages,embodying not only beauty and order but also harboring numerous undisclosed properties awaiting discovery.In the realm of supramolecular chemistry,macrocycles,with a cyclic structure and a central cavity like a doughnut,captivate the attention of scientists[1].In 1967,Pedersen's groundbreaking revelation that alkali metal ions could"fall into"the cavities of a cyclic ether named crown ether,even in organic solvents,unveiled a novel universe of macrocycle chemistry.Since then,numerous macrocyclic structures in nature have been discovered,isolated,and scrutinized.Drawing inspiration from nature,chemists endeavor to explore the vast potential of macrocyclic compounds by designing and synthesizing artificial macrocycles with diverse structural features and recognition properties.
基金financially supported by the National Key Research and Development Program of China (No.2018YFD0200102)the National Natural Science Foundation of China (Nos.21911530178 and 21772055)+1 种基金the 111 Project (No.B17019)Self-determined research funds of CCNU from the colleges’ basic research and operation of MOE。
文摘Imitating the signal transduction and transmembrane transport co ntrolled by biological channels in the cell membra ne,artificial nanochannels with a similar capability of sensing and transport are constructed as bionic nanochannels.To accomplish selective sensing and transport of biological analyte(as "vip"),the bionic nanochannels are modified with the artificial receptor(as "host"),Based on selective recognition between host and vip,bionic nanochannels translate the stimulus of the vip to electrochemical signal as sensors,and further regulate the transmission of vip as transporters.Howeve r,throughout all kinds of vips,the selective sensing and transpo rt of ions and chiral molecules is a challenging problem.And throughout all hosts of ions and chiral molecules,the macrocyclic hosts with multisite of recognition show better selectivity,such as crown ethers,cyclodextrins,calixarenes,and pillararenes.In this article,we highlight recent advances in the macrocyclic host-based nanochannels for the selective sensing and transport of ionic and chiral vips,summarize the similarities and differences of different kinds of macrocyclic host-based nanochannels,and expect the research direction and application prospect.
基金supported by the National Natural Science Foundation of China(Nos.22271154,22571124)the Science Fund for Distinguished Young Scholars of Jiangsu Province(No.BK20240078)+1 种基金the Jiangxi Provincial Natural Science Foundation(Nos.20252BAC250110,20252BAC200208)the Innovation Support Program of Jiangsu Province(No.BZ2023055).
文摘Supramolecular macrocyclic hosts,such as crown ethers,cucurbiturils,calixarenes,cyclodextrins,and pillararenes,have significantly advanced host-vip chemistry.However,their practical applications in functional materials are often limited by structural diversity constraints,suboptimal photophysical properties,and inherent nonemissive characteristics.To overcome these limitations,the orthogonal incorporation of aggregation-induced emission-active tetraphenylethene(TPE)units into macrocyclic skeletons has emerged as a promising strategy.This minireview systematically categorizes TPE-embedded macrocyclic hosts into three types,non-,semi-,and full-TPE-embedded,based on the skeleton of TPE integration,highlighting their molecular design principles,photophysical properties,and diverse applications.Drawing upon research advances from the past 5 years,this minireview underscores the dual functionality of conventional macrocyclic skeletons and TPE units,which stems from the restriction of intramolecular rotation mechanism.Furthermore,key challenges in molecular design and potential future research directions are outlined to guide the development of next-generation TPE-based macrocyclic hosts with tailored functionalities,thereby deepening the understanding of structure-property-function relationships.
基金the National Natural Science Foundation of China(No.22271154)the Science Fund for Distinguished Young Scholars of Jiangsu Province(No.BK20240078).
文摘Macrocyclic hosts play a crucial role in supramolecular chemistry and the development of supramolecular functional materials.Their well-defined cavities and diverse host-vip interactions endow macrocycles with excellent stimuli responsiveness,facilitating efficient assembly construction.However,the limited availability of functional groups in conventional macrocycles restricts their ability to meet the demand for fabricating materials with multiple functionalities.To address this limitation,several research groups have introduced tetraphenylethylene(TPE),a well-known building block renowned for its remarkable aggregation-induced emission(AIE)effect,into the macrocycle framework.Herein,this paper summarizes the combination strategies and synergistic approaches that achieve multi-functionality by integrating TPE and macrocyclic architectures.The emission characteristics of TPE-embedded macrocycles are elucidated,and it is anticipated that more AIE-type macrocycles with innovative backbones and broad applications will emerge.
基金financially supported by the National Natural Science Foundation of China(Nos.22001214,21662031,21661028 and 22061039)the Science Fund for Distinguished Young Scholars of Gansu Province(No.22JR5RA131)+4 种基金the Longyuan Innovation and Entrepreneurship Talent Project of Gansu Provincethe Major Project Cultivation Program of Northwest Normal Universitythe Top Leading Talents Project of Gansu Provincethe Key R&D program of Gansu Province(No.21YF5GA066)College Industry Support Plan Project of Gansu Province(No.2022CYZC-18)。
文摘Herein we report an environmentally friendly and energy-efficient method for the adsorptive separation of toluene from toluene-alcohol azeotropes using porous crystalline fluorinated leaning pillar[6]arene(FLP6α),achieving up to 100%purity.Moreover,FLP6αdemonstrates rapid adsorption and excellent recyclability.
基金supported by the National Natural Science Foundation of China(22271110)the Natural Science Founda-tion of Hubei Province(2022CFA031)。
文摘Converting body heat into electricity presents an appealing route for sustainably powering wearable electronics;however,conventional thermoelectric materials face significant drawbacks,including high ionic concentrations,toxicity,and limited thermoelectric efficiency.Here,we report an ionic thermoelectric hydrogel designed through precise supramolecular chemistry,utilizing dual molecular interactions,host-vip complexation ofα-cyclodextrin(α-CD)with I_(3)^(-)ions and hydrogen bonding between polyvinyl alcohol(PVA)polymer chains and I_(3)^(-).This molecularly tailored approach markedly amplifies thermoelectric performance,achieving a high thermopower of 2.21 mV/K and a tenfold enhancement in peak power output at an exceptionally low iodine concentration(10 mmol/L I^(-)+2.5 mmol/L I_(3)^(-)).The hydrogel maintains excellent biocompatibility and mechanical robustness,suitable for direct skin contact.Demonstrated applications include flexible thermoelectric devices generating nearly 100 mV from body heat and sensor arrays capable of motion and spatial temperature sensing.These results underscore the substantial potential of supramolecularly designed ionic thermoelectric hydrogels for wearable energy harvesting,personalized healthcare monitoring,and advanced human-computer interfaces.
