Two 3d-4f metal-organic frameworks as fluorescent sensor array for the discrimination of phosphates based on different response patterns

2020 ◽  
Vol 324 ◽  
pp. 128757 ◽  
Author(s):  
Shi Zhe Du ◽  
Zhe Sun ◽  
Lei Han ◽  
Min Qing ◽  
Hong Qun Luo ◽  
...  
Talanta ◽  
2019 ◽  
Vol 203 ◽  
pp. 248-254 ◽  
Author(s):  
Qiao Liu ◽  
Jie Gao ◽  
Zhe Zheng ◽  
Di Ning ◽  
Qian Wang ◽  
...  

2019 ◽  
Author(s):  
Arni Sturluson ◽  
Rachel Sousa ◽  
Yujing Zhang ◽  
Melanie T. Huynh ◽  
Caleb Laird ◽  
...  

Metal-organic frameworks (MOFs)-- tunable, nano-porous materials-- are alluring recognition elements for gas sensing. Mimicking human olfaction, an array of cross-sensitive, MOF-based sensors could enable analyte detection in complex, variable gas mixtures containing confounding gas species. Herein, we address the question: given a set of MOF candidates and their adsorption properties, how do we select the optimal subset to compose a sensor array that accurately and robustly predicts the gas composition via monitoring the adsorbed mass in each MOF? We first mathematically formulate the MOF-based sensor array problem under dilute conditions. Instructively, the sensor array can be viewed as a linear map from <i>gas composition space</i> to <i>sensor array response space</i> defined by the matrix <b>H</b> of Henry coefficients of the gases in the MOFs. Characterizing this mapping, the singular value decomposition of <b>H </b>is a useful tool for evaluating MOF subsets for sensor arrays, as it determines the sensitivity of the predicted gas composition to measurement error, quantifies the magnitude of the response to changes in composition, and recovers which direction in gas composition space elicits the largest/smallest response. To illustrate, on the basis of experimental adsorption data, we curate MOFs for a sensor array with the objective of determining the concentration of CO<sub>2</sub> and SO<sub>2</sub> in the gas phase.


NANO ◽  
2020 ◽  
Author(s):  
Chengxiang Chu ◽  
Rui Huang ◽  
Xianfeng Wang ◽  
Yuanyi Deng ◽  
Tao Gu ◽  
...  

2017 ◽  
Vol 5 (33) ◽  
pp. 8566-8571 ◽  
Author(s):  
Yujie Ma ◽  
Guanhong Xu ◽  
Fangdi Wei ◽  
Yao Cen ◽  
Yunsu Ma ◽  
...  

A new ratiometric fluorescent sensor (QDs/CDs@ZIF-8) combining the advantages of ratiometry and MOFs was synthesized for Cu2+ detection.


2019 ◽  
Vol 91 (16) ◽  
pp. 10772-10778 ◽  
Author(s):  
Shuai Wu ◽  
Yiwei Han ◽  
Lin Wang ◽  
Jinlong Li ◽  
Zhaowei Sun ◽  
...  

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