A novel fluorescent probe,6-（N,N-dimethylamino）-2-naphthoylacryl acid（ACADAN） was designed and synthesized as a fluorescent sensor for Cu^2＋ in aqueous media.Significant amplification of fluorescence signals with...A novel fluorescent probe,6-（N,N-dimethylamino）-2-naphthoylacryl acid（ACADAN） was designed and synthesized as a fluorescent sensor for Cu^2＋ in aqueous media.Significant amplification of fluorescence signals without causing any discernible change of maximum fluorescence emission wavelength（λ max） was observed upon the addition of Cu^2＋.Importantly,ACADAN is capable of recognizing Cu^2＋ selectively in aqueous media in the presence of various biologically relevant metal ions and the prevalent toxic metal ions in the environment with high sensitivity（detection limit was 0.1 μmol/L）.展开更多
Chemical sensor arrays can obtain more comprehensive analyte information through high-dimensional data.It is of great significance in the analysis of multi-component complex samples.This review summarizes the developm...Chemical sensor arrays can obtain more comprehensive analyte information through high-dimensional data.It is of great significance in the analysis of multi-component complex samples.This review summarizes the development and status of chemical sensor arrays.We focused on the design of chemical sensor arrays based on various sensing materials.In addition,several pattern recognition methods in chemometrics are introduced.And applications of chemical sensor arrays in food monitoring,medical diagnosis,and environmental monitoring are illustrated.Based on the analysis of the limitations of current sensor array technology,the direction of the array is also predicted.This review aims to help the broad readership understand the research state of chemical sensor arrays and their development prospects.展开更多
The discrimination of liquors plays a vital role in our daily life as a large amount of cheap alcoholic beverages and low-quality counterfeits greatly damage the health of consumers.Array-based optical sensors have be...The discrimination of liquors plays a vital role in our daily life as a large amount of cheap alcoholic beverages and low-quality counterfeits greatly damage the health of consumers.Array-based optical sensors have been developed as a fast and effective tool to discriminate multi-analytes or complex mixtures with similar structures,such as acids,esters,aldehydes and ketones.Over the past decades,optical sensor arrays have demonstrated remarkable capabilities in fast and accurate detection of diverse types,qualities,and authentic liquors.The identification strategy mainly focuses on the specific/non-specific interactions of flavor compounds in liquors with sensor elements.The cross-reactive optical signal readouts from the combination of sensor elements with liquors and multiple machine learning algorithms are essential to ensure the discriminatory capability of sensing system.In this review,we discuss the advantages and recent advances in pattern recognition of liquors in terms of the design of various types of sensing materials and the construction strategies of sensor arrays.展开更多
Sensors capable of recognizing cell surface carbohydrates,such as sialyl Lewis X（sLe-x）,are invaluable research tools and for the diagnosis and early detection of many forms of cancer.In this paper,we report the des...Sensors capable of recognizing cell surface carbohydrates,such as sialyl Lewis X（sLe-x）,are invaluable research tools and for the diagnosis and early detection of many forms of cancer.In this paper,we report the design and synthesis of a series of bisboronic acids 6（a-f） as fluorescent sensors towards mono-/oligosaccharides.Among them,compounds 6d and 6e showed strong binding affinities with glucose and fructose,while compound 6c,in which two anthracene-based boronic acid units were linked by a hexamethylene spacer,was able to recognize sLe-x selectivity and stained HEPG2 cells at 1 μmoI/L.展开更多
A simple and nontoxic fluorescent chemosensor of di-O-methyl curcumin has been prepared from curcumin. The sensor exhibited selective and sensitive fluorescent responses toward A13＋ over a wide range of metal ions, s...A simple and nontoxic fluorescent chemosensor of di-O-methyl curcumin has been prepared from curcumin. The sensor exhibited selective and sensitive fluorescent responses toward A13＋ over a wide range of metal ions, such as Mn2＋, Ce3＋, Pt2＋, Sn4＋, Hg＋, Sb3＋, K＋, Ca2＋, Mg2＋, Ba2＋, Cu2＋＇ Ni2＋＇ Na＋＇ NH4＋＇ Ag＋＇ Pb2＋＇ Zn2＋＇ Fee＋＇ Fe3＋, Hg2＋ and Cr3＋ in ethanol/water. The free ligand showed quite weak fluorescence emission due to the isom- erization of C=O double bond in the excited state, however, after addition of Al3＋, fluorescence emission results in a prominent fluorescence enhancement.展开更多
A novel covalently bonded Eu3＋-based silica hybrid material was designed and its spectrophotometric anion sensing property was studied. The fluorescent receptor （europium complex） was covalently grafted to the sili...A novel covalently bonded Eu3＋-based silica hybrid material was designed and its spectrophotometric anion sensing property was studied. The fluorescent receptor （europium complex） was covalently grafted to the silica matrix via a sol-gel approach. FTIR, UV-vis spectra, scanning electron microscopy （SEM）, transmission electron microscopy （TEM）, X-ray diffraction （XRD） and photoluminescent spectra were characterized, and the results revealed that the hybrid material with nanosphere structure displayed excellent photophysical property. In addition, the selective anion sensing property of the hybrid material was studied by UV-vis and fluorescence spectra. The results showed that the hybrid material exhibited a smart response with fluoride anions.展开更多
基金Supported by the National Natural Science Foundation of China(Nos.30672560,81172982)the Accented Project for Natural Scientific Research of Universities in Guangdong Province,China(No.05Z012)
文摘A novel fluorescent probe,6-（N,N-dimethylamino）-2-naphthoylacryl acid（ACADAN） was designed and synthesized as a fluorescent sensor for Cu^2＋ in aqueous media.Significant amplification of fluorescence signals without causing any discernible change of maximum fluorescence emission wavelength（λ max） was observed upon the addition of Cu^2＋.Importantly,ACADAN is capable of recognizing Cu^2＋ selectively in aqueous media in the presence of various biologically relevant metal ions and the prevalent toxic metal ions in the environment with high sensitivity（detection limit was 0.1 μmol/L）.
基金funded by Natural Science Foundation of Heilongjiang Province(No.LH2022B004)Fundamental Research Funds for the Central Universities(No.2572022DJ01)+1 种基金111 Project(No.B20088)Heilongjiang Touyan Innovation Team Program(Tree Genetics and Breeding Innovation Team)。
文摘Chemical sensor arrays can obtain more comprehensive analyte information through high-dimensional data.It is of great significance in the analysis of multi-component complex samples.This review summarizes the development and status of chemical sensor arrays.We focused on the design of chemical sensor arrays based on various sensing materials.In addition,several pattern recognition methods in chemometrics are introduced.And applications of chemical sensor arrays in food monitoring,medical diagnosis,and environmental monitoring are illustrated.Based on the analysis of the limitations of current sensor array technology,the direction of the array is also predicted.This review aims to help the broad readership understand the research state of chemical sensor arrays and their development prospects.
基金This project was supported by the National Natural Science Foundation of China(82072017,32272415 and 52003298)Natural Science Foundation of Jiangsu Province(BK20200578)Funding of Double First-Rate Discipline Innovation Team(CPUQNJC22_04).
文摘The discrimination of liquors plays a vital role in our daily life as a large amount of cheap alcoholic beverages and low-quality counterfeits greatly damage the health of consumers.Array-based optical sensors have been developed as a fast and effective tool to discriminate multi-analytes or complex mixtures with similar structures,such as acids,esters,aldehydes and ketones.Over the past decades,optical sensor arrays have demonstrated remarkable capabilities in fast and accurate detection of diverse types,qualities,and authentic liquors.The identification strategy mainly focuses on the specific/non-specific interactions of flavor compounds in liquors with sensor elements.The cross-reactive optical signal readouts from the combination of sensor elements with liquors and multiple machine learning algorithms are essential to ensure the discriminatory capability of sensing system.In this review,we discuss the advantages and recent advances in pattern recognition of liquors in terms of the design of various types of sensing materials and the construction strategies of sensor arrays.
基金supported by the National Natural Science Foundation of China(NSFC)(No.21372060)Hebei Province Natural Science Fund for Distinguished Young Scholars(No.B2015201005)
文摘Sensors capable of recognizing cell surface carbohydrates,such as sialyl Lewis X（sLe-x）,are invaluable research tools and for the diagnosis and early detection of many forms of cancer.In this paper,we report the design and synthesis of a series of bisboronic acids 6（a-f） as fluorescent sensors towards mono-/oligosaccharides.Among them,compounds 6d and 6e showed strong binding affinities with glucose and fructose,while compound 6c,in which two anthracene-based boronic acid units were linked by a hexamethylene spacer,was able to recognize sLe-x selectivity and stained HEPG2 cells at 1 μmoI/L.
基金the National Natural Science Foundation of China （Nos. 21002009 and 21572026）, the Scientific and Technological Project of Jiangsu Province （No. BY2014037-01）, the Natural Science Foundation of Jiangsu Colleges and Universities （No. 14KJA150002）, Qing Lan Project of Jiangsu Province, the Priority Academic Program Development （PAPD） of Jiangsu Higher Education Institutions, and the Jiangsu Key Laboratory of Advanced Catalytic Ma- terials and Technology （No. BM2012110）.
文摘A simple and nontoxic fluorescent chemosensor of di-O-methyl curcumin has been prepared from curcumin. The sensor exhibited selective and sensitive fluorescent responses toward A13＋ over a wide range of metal ions, such as Mn2＋, Ce3＋, Pt2＋, Sn4＋, Hg＋, Sb3＋, K＋, Ca2＋, Mg2＋, Ba2＋, Cu2＋＇ Ni2＋＇ Na＋＇ NH4＋＇ Ag＋＇ Pb2＋＇ Zn2＋＇ Fee＋＇ Fe3＋, Hg2＋ and Cr3＋ in ethanol/water. The free ligand showed quite weak fluorescence emission due to the isom- erization of C=O double bond in the excited state, however, after addition of Al3＋, fluorescence emission results in a prominent fluorescence enhancement.
基金supported by the National Natural Science Foundation of China(21401040,21301047)the Natural Science Foundation of Hebei Province(B2014208160,B2014208091)
文摘A novel covalently bonded Eu3＋-based silica hybrid material was designed and its spectrophotometric anion sensing property was studied. The fluorescent receptor （europium complex） was covalently grafted to the silica matrix via a sol-gel approach. FTIR, UV-vis spectra, scanning electron microscopy （SEM）, transmission electron microscopy （TEM）, X-ray diffraction （XRD） and photoluminescent spectra were characterized, and the results revealed that the hybrid material with nanosphere structure displayed excellent photophysical property. In addition, the selective anion sensing property of the hybrid material was studied by UV-vis and fluorescence spectra. The results showed that the hybrid material exhibited a smart response with fluoride anions.
