A Cu(ii) coordination polymer-based catalytic sensing system for detecting cysteine and sulfur anions

2018 ◽  
Vol 10 (36) ◽  
pp. 4387-4393 ◽  
Author(s):  
Xiang-Ying Sun ◽  
Zhen-Fa Qin ◽  
Jiang-Shan Shen ◽  
Xue-Gong Cao ◽  
Bin Liu ◽  
...  

Developing Cu(ii) coordination polymer-based artificial enzyme mimics for establishing highly selective and sensitive sensing platform for Cys and S2− anions.

2011 ◽  
Vol 32 (12) ◽  
pp. 899-904 ◽  
Author(s):  
Hailong Li ◽  
Lei Wang ◽  
Junfeng Zhai ◽  
Yingwei Zhang ◽  
Jingqi Tian ◽  
...  

Water ◽  
2021 ◽  
Vol 13 (16) ◽  
pp. 2163
Author(s):  
Zhenhua Chao ◽  
Xuan Fang ◽  
Jiaming Na ◽  
Mingliang Che

More and more attention has been paid to farmland water conservancy project (FWCP) maintenance in China, which can reallocate water resources in a more rational and efficient manner. Compared with the traditional survey such as field survey, FWCP maintenance can be improved efficiently with geospatial technology. To improve the level of FWCP maintenance in China, a collaborative sensing system framework by integrating satellite, aerial, and ground remote sensing is put forward. The structure of the system framework includes three sections, namely the data acquisition, the operational work, and the application and service. Through the construction and operation of such collaborative sensing system, it will break through the limitation of any single remote sensing platform and provide all-around and real-time information on FWCP. The collaborative monitoring schemes for the designed FWCP maintenance can engage ditch riders to maintain more effectively, which will enable them to communicate more specifically with smallholders in the process of irrigation. Only when ditch riders and farmers are fully involved, irrigation efficiency will be improved. Furthermore, the collaborative sensing system needs feasible standards for multi-source remote sensing data processing and intelligent information extraction such as data fusion, data assimilation, and data mining. In a way, this will promote the application of remote sensing in the field of agricultural irrigation and water saving. On the whole, it will be helpful to improve the traditional maintenance problems and is also the guarantee for establishing a long-term scientific management mechanism of FWCP maintenance in developing countries, especially in China.


PLoS ONE ◽  
2012 ◽  
Vol 7 (1) ◽  
pp. e30426 ◽  
Author(s):  
Yingwei Zhang ◽  
Yonglan Luo ◽  
Jingqi Tian ◽  
Abdullah M. Asiri ◽  
Abdulrahman O. Al-Youbi ◽  
...  

2021 ◽  
Author(s):  
Ziping Liu ◽  
Shasha Liu ◽  
Decai Gao ◽  
Yanan Li ◽  
Ye Tian ◽  
...  

Abstract In this work, a convenient, label-free and dual-signal readout optical sensing platform for the sensitively and selectively determination of beta-glucosidase (β-Glu) activity was reported using protein-inorganic hybrid nanoflowers [BSA-Cu3(PO4)2·3H2O] possessing peroxidase-mimicking activity. The nanoflowers (NFs) were facilely synthesized through a self-assembled synthesis strategy at room temperature. The as-prepared NFs could catalytically convert the colorless and non-fluorescent Amplex Red into colored and highly fluorescent resorufin in the presence of hydrogen peroxide via electron transfer process. β-Glu could hydrolyze cyanogenic glycoside, using amygdalin (Amy) as a model, into cyanide ions (CN-), which can subsequently efficiently suppress the catalytic activity of NFs, accompanied with the fluorescence decrease and the color fading. The concentration of CN- was controlled by β-Glu-triggered enzymatic reaction of Amy. Thus, a sensing system was established for fluorescent and visual determination of β-Glu activity. Under the optimum conditions, the present fluorescent and visual bimodal sensing platform exhibited good sensitivity for β-Glu activity assay with a detection limit of 0.33 U·L-1. The sensing platform was further applied to determinate β-Glu in real samples and satisfactory results were attained. Additionally, the label-free optical sensing system can potentially be a promising candidate for β-Glu inhibitors screening.


2014 ◽  
Vol 43 (5) ◽  
pp. 1734-1787 ◽  
Author(s):  
Matthieu Raynal ◽  
Pablo Ballester ◽  
Anton Vidal-Ferran ◽  
Piet W. N. M. van Leeuwen

2019 ◽  
Vol 26 (5) ◽  
pp. 1507-1521 ◽  
Author(s):  
Morvarid Aghayan ◽  
Ali Mahmoudi ◽  
Khodadad Nazari ◽  
Saeed Dehghanpour ◽  
Samaneh Sohrabi ◽  
...  

2016 ◽  
Vol 3 (3) ◽  
pp. 376-380 ◽  
Author(s):  
Shu-Na Zhao ◽  
Lan-Lan Wu ◽  
Jing Feng ◽  
Shu-Yan Song ◽  
Hong-Jie Zhang

A 3D Gd-based CP was employed as an effective fluorescent sensing platform for DNA and Hg2+ ion detection with sensitivity and selectivity, due to its ability to highly quench fluorescence and its different affinities toward ssDNA and dsDNA.


The Analyst ◽  
2017 ◽  
Vol 142 (10) ◽  
pp. 1821-1826 ◽  
Author(s):  
Zhenzhen Zhang ◽  
Lu Wang ◽  
Gaiping Li ◽  
Baoxian Ye

A turn-on fluorescent sensor for simultaneous detection of histidine and cysteine based on lanthanide coordination polymer nanoparticles.


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