In situ synthesis of fluorescent silicon nanodots for determination of total carbohydrates in a paper microfluidic device combined with laser prepared graphene heater

2021 ◽  
Vol 332 ◽  
pp. 129506
Author(s):  
Inmaculada Ortiz-Gómez ◽  
Víctor Toral-López ◽  
Francisco J. Romero ◽  
Ignacio de Orbe-Payá ◽  
Antonio García ◽  
...  
Keyword(s):  
Microfluidic Device ◽  
In Situ Synthesis ◽  
Total Carbohydrates ◽  
Paper Microfluidic

scholarly journals Adenosine Triphosphate Measurement in Deep Sea Using a Microfluidic Device

Micromachines ◽  
2018 ◽  
Vol 9 (8) ◽  
pp. 370 ◽  
Author(s):  
Tatsuhiro Fukuba ◽  
Takuroh Noguchi ◽  
Kei Okamura ◽  
Teruo Fujii
Keyword(s):  
Adenosine Triphosphate ◽  
Microfluidic Device ◽  
Deep Sea ◽  
Temperature Sensor ◽  
Biochemical Parameter ◽  
Underwater Vehicle ◽  
Luciferase Assay ◽  
Bioluminescence Intensity

Total ATP (adenosine triphosphate) concentration is a useful biochemical parameter for detecting microbial biomass or biogeochemical activity anomalies in the natural environment. In this study, we describe the development and evaluation of a new version of in situ ATP analyzer improved for the continuous and quantitative determination of ATP in submarine environments. We integrated a transparent microfluidic device containing a microchannel for cell lysis and a channel for the bioluminescence L–L (luciferin–luciferase) assay with a miniature pumping unit and a photometry module for the measurement of the bioluminescence intensity. A heater and a temperature sensor were also included in the system to maintain an optimal temperature for the L–L reaction. In this study, the analyzer was evaluated in deep sea environments, reaching a depth of 200 m using a remotely operated underwater vehicle. We show that the ATP analyzer successfully operated in the deep-sea environment and accurately quantified total ATP within the concentration lower than 5 × 10−11 M.

In-situ synthesis of Cu2O Au nanocomposites as nanozyme for colorimetric determination of hydrogen peroxide

2018 ◽  
Vol 747 ◽  
pp. 676-683 ◽  
Author(s):  
Daxiang Dai ◽  
Hongying Liu ◽  
Huan Ma ◽  
Zhiheng Huang ◽  
Chunchuan Gu ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
In Situ Synthesis ◽  
Colorimetric Determination

In situ synthesis of fluorescent copper nanoclusters for rapid detection of ascorbic acid in biological samples

2019 ◽  
Vol 11 (36) ◽  
pp. 4580-4585 ◽  
Author(s):  
Xuan Wang ◽  
Caicheng Long ◽  
Zixin Jiang ◽  
Taiping Qing ◽  
Kaiwu Zhang ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Biological Samples ◽  
Rapid Detection ◽  
Rapid Determination ◽  
In Situ Synthesis ◽  
Copper Nanoclusters ◽  
Red Emission

Schematic presentation of the in situ synthesis of fluorescent copper nanoclusters for rapid determination of ascorbic acid is provided. After addition of ascorbic acid, copper(ii) is reduced to copper(0) and then clustered on dsDNA, thus producing red-emission CuNCs.

An aptamer-based paper microfluidic device for the colorimetric determination of cocaine

2017 ◽  
Vol 39 (3) ◽  
pp. 470-475 ◽  
Author(s):  
Ling Wang ◽  
Giacomo Musile ◽  
Bruce R. McCord
Keyword(s):  
Microfluidic Device ◽  
Colorimetric Determination ◽  
Paper Microfluidic

scholarly journals In Situ Synthesis of SERS-Active Au@POM Nanostructures in a Microfluidic Device for Real-Time Detection of Water Pollutants

2020 ◽  
Vol 12 (32) ◽  
pp. 36458-36467 ◽  
Author(s):  
Marta Lafuente ◽  
Ismael Pellejero ◽  
Alberto Clemente ◽  
Miguel A. Urbiztondo ◽  
Reyes Mallada ◽  
...  
Keyword(s):  
Real Time ◽  
Microfluidic Device ◽  
In Situ Synthesis ◽  
Water Pollutants ◽  
Real Time Detection
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