A lanthanide MOF immobilized in PMMA transparent films as a selective fluorescence sensor for nitroaromatic explosive vapours

2020 ◽  
Vol 8 (11) ◽  
pp. 3626-3630 ◽  
Author(s):  
Francisco G. Moscoso ◽  
José Almeida ◽  
Ahmad Sousaraei ◽  
Tânia Lopes-Costa ◽  
Ana M. G. Silva ◽  
...  
Keyword(s):  
Fluorescence Sensor ◽  
Transparent Films ◽  
Luminescent Sensor ◽  
Nitroaromatic Explosive

A selective luminescent sensor was fabricated by simply mixing a Tb(iii)-based MOF with polymethylmetahacrylate enabling to detect sub-ppb range of nitroaromatic vapours.

Morphological transformations in solution-cast Styrene-Butadiene-Styrene (SBS) triblock copolymer thin films

1995 ◽  
Vol 53 ◽  
pp. 184-185
Author(s):  
Ginam Kim ◽  
W. Marsillo ◽  
M. Libera
Keyword(s):  
Thin Films ◽  
Triblock Copolymer ◽  
Annealing Treatment ◽  
Minor Component ◽  
Solvent Evaporation ◽  
Single Crystal Substrate ◽  
Transparent Films ◽  
Crystal Substrate ◽  
Solution Cast ◽  
Morphological Transformations

The fact that block copolymers can assume a range of morphologies depending upon such variables as relative block length and molecular weight is now well known. In the case of poly(styrene)[PS]-poly(butadiene)[PB]-poly(styrene) (SBS) triblock copolymer, the morphologies range from spheres (roughly ~20% minor component), to cylinders (roughly 20%~35% minor component), to lamellae (roughly equal component fractions) Most recently, there has been increasing interest in transformations between morphologies by thermal annealing. This paper describes initial results studying the effect of solvent evaporation rate and post-casting annealing treatment on the morphology of SBS thin films.TEM specimens were prepared by solution casting electron transparent films. 50 μl of 0.1 wt% SBS (30% styrene, Mw=14,000, Scientific Polymer Products, Inc.) dissolved in toluene was deposited on a polished NaCl single crystal substrate placed in a small dish. After solvent evaporation the film was cut into small squares, floated from the salt in water, and each square was collected on a Cu grid.

Synthesis and Characterization of a pH Fluorescence Sensor with Tunable Response Range

2012 ◽  
Vol 40 (1) ◽  
pp. 77
Author(s):  
Yong-Shan MA ◽  
Feng-Xia ZHANG ◽  
Pei-Gang LI ◽  
Jun-Sen WU ◽  
Hui-Xue REN
Keyword(s):  
Fluorescence Sensor ◽  
Synthesis And Characterization ◽  
Response Range

A facile and sensitive ratiometric fluorescence sensor for rapid visual monitoring of trace resorcinol

2021 ◽  
Vol 330 ◽  
pp. 129390
Author(s):  
Wang Ren ◽  
Ying Zhang ◽  
Wen Yong Liang ◽  
Xiu Pei Yang ◽  
Wei Dong Jiang ◽  
...  
Keyword(s):  
Fluorescence Sensor ◽  
Ratiometric Fluorescence ◽  
Visual Monitoring

A terbium(III) lanthanide-organic framework as selective and sensitive iodide/bromide sensor in aqueous medium

2021 ◽  
Author(s):  
Lanjun Liu ◽  
Mengyao Zhang ◽  
Qingzhong Guo ◽  
Zhanhui Zhang ◽  
Junfang Guo
Keyword(s):  
Aqueous Medium ◽  
Hydrothermal Condition ◽  
Isophthalic Acid ◽  
Luminescent Sensor ◽  
Iodide Ion ◽  
Organic Framework

A potent luminescent sensor for the detection of iodide ion was developed based on a terbium(III)-based lanthanide–organic framework [Tb(cpia)(H2O)2]n‧nH2O (1), which was prepared under hydrothermal condition using 5-(4-carboxyphenoxy)-isophthalic acid (H3cpia)...

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