Article
Chemistry, Inorganic & Nuclear
Runnan Wang, Hao Zhang, Jing Sun, Zhongmin Su
Summary: A ratiometric fluorescence sensor based on lanthanide-metal-organic frameworks (MOFs) was developed for the sensitive and selective recognition of Bacillus anthracis biomarker, 2,6-pyridine dicarboxylic acid (DPA). The sensor exhibited outstanding performance and achieved a visible color change, making it applicable for DPA monitoring in fetal calf serum and tap water.
INORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Nanoscience & Nanotechnology
T. Leeasree, Sanket Goel, Himanshu Aggarwal
Summary: A dual sensor based on metal-organic frameworks has been developed for highly selective detection of nicotine. The sensor can efficiently detect nicotine using fluorescence and electrochemical sensing technique with a low detection limit, and shows high selectivity towards other interfering analytes.
ACS APPLIED NANO MATERIALS
(2022)
Article
Chemistry, Inorganic & Nuclear
Shuo Yang, Zhongqiu Zhao, Yiyan Liang, Junyan Li, Mingchang Zhu, Ying Zhang, Enjun Gao, Shuangyan Wu
Summary: This study successfully synthesized a Cd-based MOF named Cd-DNPA, which exhibits high selectivity and sensitivity for the detection of Bacillus anthracis markers. The sensor has the potential for practical application, as it can detect the markers in actual samples with high recovery rates.
Article
Biophysics
Jie Chi, Yanyan Song, Liang Feng
Summary: Ratiometric fluorescent sensors with built-in self-calibration characteristics can suppress interference and exhibit higher sensitivity and more obvious visual detection in qualitative and quantitative analysis. In this study, a ratiometric fluorescence probe based on fluorescent/colorimetric dual-mode method was constructed for the accurate determination of arginine. The practicality of the sensor was successfully validated by quantitative detection of arginine in human serum. Furthermore, paper-based sensors were developed for arginine detection, providing a convenient and efficient method for on-site detection.
BIOSENSORS & BIOELECTRONICS
(2023)
Article
Chemistry, Physical
Shrishti P. Pandey, Akshat M. Desai, Prabhat K. Singh
Summary: Aluminium ions play a crucial role in biological processes, and fluorescence-based detection methods have gained attention due to their sensitivity and simplicity. However, most reported sensor systems for aluminium detection rely on either complex fluorescent probes or single wavelength responses, which are prone to errors from variations in analyte-independent experimental variables. This study presents a fluorescence ratiometric sensor that uses the modulation of Thioflavin-T-Polyacrylic acid system to selectively and sensitively detect Al3+ ions. The sensor system offers a robustness to analytical performance compared to single wavelength-based measurements and has demonstrated successful detection in real water samples.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2022)
Article
Engineering, Environmental
An-Qi Cui, Xiao-Yi Wu, Jun-Bin Ye, Gang Song, Di-Yun Chen, Jie Xu, Yu Liu, Jia-Ping Lai, Hui Sun
Summary: A novel sensor/adsorbent composite was developed to detect uranium contamination and recover uranium resources. The composite, Tb-MOF/Tb-AG, showed ultra-high sensitivity with a detection limit of 1.2 ppt, wide quantification range (1.0 x 10-9 - 5.0 x 10-4 mol/L), remarkable adsorption capacity (549.0 mg/g), and outstanding anti-interference ability. The method demonstrated good detection accuracy when applied to complex natural water samples. The high sensitivity and adsorption capacity were attributed to the synergistic coordination, hydrogen bonding, and ion exchange between uranium and Tb-MOF/Tb-AG.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Chemistry, Applied
Arezou Khezerlou, Milad Tavassoli, Mahmood Alizadeh Sani, Zahra Ghasempour, Ali Ehsani, Balal Khalilzadeh
Summary: A fluorescent sensing probe based on chromium(III)-metal-organic framework was developed for the rapid detection of tetracycline. The probe showed a fast response time, low detection limit, and successful application in quantifying tetracycline residue in chicken meat and egg samples.
Review
Environmental Sciences
Romina Yousefi, Shadi Asgari, Ali Banitalebi Dehkordi, Ghodsi Mohammadi Ziarani, Alireza Badiei, Fatemeh Mohajer, Rajender S. Varma, Siavash Iravani
Summary: Metal-organic frameworks (MOFs) have gained significant attention for their unique properties and applications in sensing toxic compounds. This article focuses on MOF-based fluorescence sensors for specific detection of hazardous compounds, particularly pesticides, in order to meet the continuous demands for monitoring environmental pollution. It discusses recent advances in MOF-based platforms for pesticide fluorescence detection, including the influence of guest incorporation in MOFs and the potential of novel MOF composites for fluorescence sensing. The article also highlights the mechanistic insights of specific detection techniques in food safety and environmental protection.
ENVIRONMENTAL RESEARCH
(2023)
Article
Chemistry, Analytical
Yang Li, Jia-Jia Li, Qing Zhang, Jian-Yong Zhang, Na Zhang, Yong-Zheng Fang, Jinwu Yan, Qinfei Ke
Summary: A ratiometric fluorescence sensor with high sensitivity, selectivity, and low detection limits was constructed by grafting BODIPY onto Eu-MOFs via covalent bonding. The sensor exhibited excellent performance in detecting F-, H2O2, and glucose in water solution and living cells. Furthermore, the probe showed low biotoxicity and better visualization performance with multiplex channels.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Review
Chemistry, Analytical
Yiling Zhang, Qian Lin, Yiteng Song, Jiaqi Huang, Miaomiao Chen, Runqi Ouyang, Si-Yang Liu, Zong Dai
Summary: Metal-organic frameworks (MOFs) are widely used in various fields due to their tunable pores, functional sites, stable structure, and multi-functionality. They play a major role in glucose detection by serving as a signal transducer or functional substrate. This review introduces the general synthetic strategies of MOF-based materials and detection methods for glucose detection, as well as the novel MOF-based glucose detection devices.
Article
Chemistry, Analytical
Xiao-Yang Zhao, Jia Wang, Hai-Gang Hao, Hui Yang, Qi-Shan Yang, Wen-Yuan Zhao
Summary: A 3D Eu-MOF with outstanding thermal and water stability was synthesized and showed high detection sensitivity for the main biology marker DPA. The compound effectively restored Eu3+ fluorescence in the presence of DPA and exhibited dual-emission fluorescence response. This study provides insight into the detection mechanism of DPA by Eu-MOF through a combination of DFT and various analytical methods.
MICROCHEMICAL JOURNAL
(2021)
Article
Chemistry, Analytical
Qiang Cao, Yushi Xiao, Na Liu, Rong Huang, Chen Ye, ChiHsien Huang, Huan Liu, Gang Han, Lidong Wu
Summary: Metal-organic frameworks (MOFs) have potential as heterogeneous biomimetic catalysts due to their high surface area, tunable porosity, and diversity of metals and functional groups. A size-selective MOF coating on the external surface of a biomimetic MOF was used to improve the activity and substrate specificity. The PCN-222@ZIF-8 sensor exhibited high selectivity for catechol, increased sensitivity compared to the PCN-222 sensor, and displayed solvent adaptability.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Analytical
Jian Xiu, Guang Wang
Summary: A naphthalene-grafted zirconium-organic framework UiO-66, known as HNA@UiO-66-NH2, was synthesized and demonstrated high selectivity and sensitivity in fluorescence sensing. It exhibited turn-off response to Fe3+ in methanol and turn-on response to ClO4- in ethanol, with obvious changes in fluorescence color and low detection limits. Additionally, it could be easily used for naked-eye detection of Fe3+ and ClO4- in a test paper mode.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Chemistry, Analytical
Qiang Li, Xiaomeng Zhou, Li-Li Tan, Li Shang
Summary: Ultrasmall gold nanoclusters (AuNCs) with distinct photoluminescence properties were effectively modulated by encapsulating them into zeolite imidazolate frameworks-8 (ZIF-8), resulting in enhanced near-infrared (NIR) fluorescence intensity. The AuNCs@ZIF-8 composites exhibited an emission maximum at 830 nm, longer than AuNCs without ZIF-8 encapsulation. This strategy was utilized for the detection of acetylcholinesterase (AChE) using a ratiometric fluorescent sensing platform, showing high sensitivity and good specificity in biological samples.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Chemistry, Physical
Ning Wu, Hao Guo, Xiaoqiong Wang, Lei Sun, Tingting Zhang, Liping Peng, Wu Yang
Summary: The study synthesized europium-based metal-organic frameworks and found that they exhibit good performance and stability in fluorescence detection, especially with high selectivity and sensitivity to Fe3+ and benzaldehyde.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Review
Chemistry, Multidisciplinary
Meiling Li, Guojian Ren, Weiting Yang, Qinhe Pan
Summary: Photo-functionalized metal-organic frameworks (PMOFs) have attracted significant attention due to their unique structures and rich fluorescent components, which have shown great advantages and broad applications prospects in optical anti-counterfeiting. This review presents the latest progress of PMOFs in various levels of anti-counterfeiting applications. The construction strategies of PMOFs are summarized, and the different levels of optical anti-counterfeiting based on PMOFs under different stimulation modes are discussed. Additionally, the existing challenges and future prospects of PMOFs in anti-counterfeiting applications are briefly discussed. It is hoped that this review will provide new insights and guidance for optical anti-counterfeiting.
Article
Chemistry, Inorganic & Nuclear
Yonghang Yang, Guojian Ren, Cong Wang, Shunan Ding, Weiting Yang, Shuixing Wu, Qinhe Pan, Xinlong Wang, Zhongmin Su
Summary: Defect engineering has been widely observed and applied in crystal materials, but the relationship between defect formation and crystallization process needs to be clarified, and defect healing presents a significant challenge. Utilizing a new coordination complex (HNU-53), crystal defects were created by increasing reaction time and crystal size. This led to the simultaneous generation of crystal color centers during crystal growth, resulting in fluorescence quenching. By introducing rare earth ions and controlling crystal growth through coordination competition, the crystal defects were reduced and the recovery of fluorescence emission was achieved.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Physical
Yang Chen, Xiaojun Zhao, Qiujuan Zhang, Xinjia Miao, Yan Chen, Weiting Yang, Qinhe Pan
Summary: Direct seawater splitting for hydrogen production is a promising strategy to reduce fossil energy consumption and freshwater stress. A hierarchical carbon-based catalyst, ZIF-67/CF-1, was prepared and demonstrated excellent electrocatalytic activity and stability for overall seawater splitting and oxygen reduction. The catalyst showed comparable performance to precious metal-based electrolyzers, indicating its potential application in renewable energy technologies.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Xiaojing Huang, Duoyu Lin, Pan Duan, Huiping Chen, Yujuan Zhao, Weiting Yang, Qinhe Pan, Xinlong Tian
Summary: In this study, a stepwise vacuum evaporation strategy was developed to achieve the nano-confined growth of metal-organic frameworks (MOFs) in hollow mesoporous silica nanospheres (HMSN). The catalytic performance of the resulting catalyst was significantly enhanced through further functionalization.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Feng Gao, Senhao Lei, Huihui Li, Shengming Chen, Shuixing Wu, Jiyang Li, Fuxiang Wang, Qinhe Pan
Summary: Fluorescent molecules confined in metal-organic framework UiO-66 show color change in fluorescence, making it a promising drug carrier for monitoring drug release.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2023)
Article
Chemistry, Analytical
Xinyu Zheng, Shengming Chen, Bo Fu, Yatian Cao, Huihui Li, Fuxiang Wang, Qinhe Pan
Summary: The complex of bovine serum albumin-capped gold nanoclusters (BSA-AuNCs) with 3-mercaptopropionic acid-stabilized CdTe quantum dots (MPA-CdTe QDs), called AuNCs/CdTe QDs, was prepared via electrostatic assembly for the sensitive detection of trypsin. The detection sensitivity of AuNCs/CdTe QDs for trypsin was improved, and the detection limit of trypsin with AuNCs/CdTe QDs was determined to be as low as 12 ng mL-1 (0.50 nM).
MICROCHEMICAL JOURNAL
(2023)
Article
Chemistry, Applied
Jian Luo, Yu Ma, Yanfeng Liu, Xiaojing Huang, Ahui Sun, Cong Wang, Weiting Yang, Qinhe Pan
Summary: Sustainable, environmentally friendly, and economically viable treatment of marine oil spills is achieved by preparing composites with highly durable structure for continuous oil/water separation. This is done by in situ growth of zeolitic imidazole framework ZIF-90 on a porous melamine sponge, which results in the formation of the ZIF-90/MS composite. The composite demonstrates great oil adsorption capacity, excellent recoverability, and high cycling performance in oil/water separation.
MICROPOROUS AND MESOPOROUS MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Xingli Wang, Guang Che, Tian Cui, Fubo Tian, Long Yuan, Rong Fu, Weiting Yang, Xiaofeng Wu
Summary: We introduced an in-situ one-step hydrothermal method to prepare spinel films with nanostructures on low-cost Fe-Cr alloy substrates. The synthesized spinel film showed excellent low reflectance in the range of 0.3-2.5 µm and 2.5-13 µm, with values of 4.34% and 4.99% respectively, due to its uniform nano-micron structure on the surface. The spinel film can be an ideal candidate for ultra-wideband low-reflectance materials to improve the high precision of optical instruments.
Article
Materials Science, Multidisciplinary
Xuan-Ming Zhang, Mei-Ling Li, Wei-Ting Yang, Qi-Ying Wang, Shuai-Cheng Liu, Chao-Wei Zhang, Ya-Tian Cao, Guan-Jun Wang
Summary: A universal method for attaching nanocrystals to the end of an optical fiber was developed to achieve real-time and high-sensitive humidity sensing. Four metal-organic framework materials (ZIF-8, UiO-66, HKUST-1, MIL-101) were connected to an optical fiber to form humidity sensors. By monitoring the spectral change in relation to humidity, high-sensitive humidity sensing performance was achieved. The MIL-101-based optical fiber sensor exhibited the best performance with a sensitivity of 5.30 nm/%RH and excellent circulation and stability.
Article
Chemistry, Analytical
Yatian Cao, Xiaolong Gong, Le Li, Huihui Li, Xuanming Zhang, Dong-Yu Guo, Fuxiang Wang, Qinhe Pan
Summary: In this study, a dual-modal detection method for 2,6-pyridinedicarboxylic acid (DPA) was developed using colorimetric xylenol orange (XO) modified on fluorescent CdTe quantum dots (QDs). The DPA can be rapidly and accurately quantified through fluorescent and colorimetric modes. The method also showed satisfactory results in the measurement of urinary DPA.
Article
Chemistry, Applied
Junxue Liu, Wenyan Ma, Yufei Wang, Qinfen Gu, Qinhe Pan, Siyu Zong, Minghao Qin, Jiyang Li
Summary: This study successfully constructed a sensitive biosensor for the bimodal detection of gallic acid and biothiols. The biosensor was based on CDs@MIL-53(Fe)-NO2 prepared through a microwave treatment, and it utilized the excellent fluorescent and electron transfer properties of CDs for high sensitivity detection. The practicality of the method in real samples and its portability on a smartphone were demonstrated with reliable results.
