scholarly journals Detection of L-nicotine with dissipation mode quartz crystal microbalance using molecular imprinted polymers

2012 ◽  
Vol 209 (5) ◽  
pp. 905-910 ◽  
Author(s):  
Jan Alenus ◽  
Pavel Galar ◽  
Anitha Ethirajan ◽  
Frederik Horemans ◽  
Ans Weustenraed ◽  
...  
Keyword(s):  
Quartz Crystal Microbalance ◽  
Quartz Crystal ◽  
Molecular Imprinted Polymers ◽  
Imprinted Polymers

scholarly journals Ultra-Stable UiO-66 Involved Molecularly Imprinted Polymers for Specific and Sensitive Determination of Tyramine Based on Quartz Crystal Microbalance Technology

Polymers ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 281
Author(s):  
Chi-Xuan Yao ◽  
Ning Zhao ◽  
Jing-Min Liu ◽  
Guo-Zhen Fang ◽  
Shuo Wang
Keyword(s):  
Quartz Crystal Microbalance ◽  
Quartz Crystal ◽  
Selective Adsorption ◽  
Sol Gel ◽  
Metal Organic Frameworks ◽  
Trace Detection ◽  
Molecular Imprinted Polymers ◽  
Imprinted Polymers ◽  
Adsorption Affinity ◽  
Metal Organic

A rapid method was developed to determine the content of tyramine in food on the basis of the combination of molecular imprinting technique and the metal-organic frameworks. We developed the new molecular imprinted polymers based on metal-organic frameworks UiO-66 (named UiO-66@MIPs) as the sensing recognition element, the non-molecular imprinted polymers based on UiO-66 (named UiO-66@NIPs) was synthesized according the same steps without tyramine for comparison. The characterization of obtained UiO-66@MIPs was investigated through a series of characterization experiments. The results indicated that the octahedral shaped UiO-66 was encapsulated in the sol-gel polymer film, with a desirable thermal stability and possessed a specific surface area (SSA) of 994.3 m2·g−1. The imprinting factor of the UiO-66@MIPs for tyramine was 1.956 in static experiment. This indicates the synthesized UiO-66@MIPs have outstanding performance compered to UiO-66@NIPs on the static adsorption quantity and selective adsorption affinity. It’s to make use of advantages of the synthetic materials to develop a quartz crystal microbalance (QCM) sensor for the sensitive detection of tyramine. The detection limit of the system was 61.65 μg·L−1 within measurable concentration range from 80 to 500 μg·L−1. The prepared QCM sensor was verified in selectivity and application. The UiO-66@MIPs possess good behavior on selectivity, absorptivity, and chemical stability, so the UiO-66@MIPs achieve accurate and rapid trace detection of biogenic amines in food combining with the quartz crystal microbalance.

scholarly journals Label free Affinity sensing: application to food analysis

ACTA IMEKO ◽  
2016 ◽  
Vol 5 (1) ◽  
pp. 36 ◽  
Author(s):  
Simona Scarano ◽  
Stefano Mariani ◽  
Maria Minunni
Keyword(s):  
Surface Plasmon Resonance ◽  
Food Analysis ◽  
Quartz Crystal ◽  
Genetically Modified Organism ◽  
Label Free ◽  
Nucleic Acid Probes ◽  
Molecular Imprinted Polymers ◽  
Imprinted Polymers ◽  
Sensing Application ◽  
Origin Analysis

In this paper real-time, label free sensing principle based on Surface Plasmon Resonance (SPR) and gravimetric, i.e. Quartz Crystal Microbalance (QCM) are described and some applications to food analysis problems are reported. Affinity receptors are introduced and examples using antibodies, nucleic acid probes and biomimetic receptors i.e. molecular imprinted polymers (MIP) reported. In particualr pesticide, endotoxins, pathogens, Genetically Modified Organism (GMOs) detection and food origin analysis are reviewed.

Quartz Crystal Microbalance In-Line Sensing of Escherichia Coli in a Bioreactor Using Molecularly Imprinted Polymers

2014 ◽  
Vol 12 (6) ◽  
pp. 1152-1155 ◽  
Author(s):  
Renata Samardzic ◽  
Hermann F. Sussitz ◽  
Nathjanan Jongkon ◽  
Peter A. Lieberzeit
Keyword(s):  
Escherichia Coli ◽  
Quartz Crystal Microbalance ◽  
Molecularly Imprinted Polymers ◽  
Quartz Crystal ◽  
Molecularly Imprinted ◽  
Imprinted Polymers
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