Enhanced Analytical Performance of Paper Microfluidic Devices by Using Fe3O4 Nanoparticles, MWCNT, and Graphene Oxide

2015 ◽  
Vol 8 (1) ◽  
pp. 11-15 ◽  
Author(s):  
Federico Figueredo ◽  
Paulo T. Garcia ◽  
Eduardo Cortón ◽  
Wendell K. T. Coltro
Keyword(s):  
Graphene Oxide ◽  
Fe3o4 Nanoparticles ◽  
Microfluidic Devices ◽  
Analytical Performance ◽  
Paper Microfluidic

Highly sensitive colorimetric detection of glucose and uric acid in biological fluids using chitosan-modified paper microfluidic devices

The Analyst ◽  
2016 ◽  
Vol 141 (15) ◽  
pp. 4749-4756 ◽  
Author(s):  
Ellen F. M. Gabriel ◽  
Paulo T. Garcia ◽  
Thiago M. G. Cardoso ◽  
Flavio M. Lopes ◽  
Felipe T. Martins ◽  
...  
Keyword(s):  
Uric Acid ◽  
Biological Fluids ◽  
Colorimetric Detection ◽  
Microfluidic Devices ◽  
Analytical Performance ◽  
Highly Sensitive ◽  
Colorimetric Measurements ◽  
Paper Microfluidic ◽  
Enzymatic Bioassays

This paper describes the modification of microfluidic paper-based analytical devices (μPADs) with chitosan to improve the analytical performance of colorimetric measurements associated with enzymatic bioassays.

Janus Graphene Oxide Sheets with Fe3O4 Nanoparticles and Polydopamine as Anodes for Lithium-Ion Batteries

2021 ◽  
Vol 13 (12) ◽  
pp. 14786-14795
Author(s):  
Jiwon Jang ◽  
Seok Hyun Song ◽  
Hyeri Kim ◽  
Junsoo Moon ◽  
Hyungju Ahn ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Lithium Ion Batteries ◽  
Fe3o4 Nanoparticles ◽  
Lithium Ion ◽  
Graphene Oxide Sheets

scholarly journals Reduced Graphene Oxide-Wrapped Super Dense Fe3O4 Nanoparticles with Enhanced Electromagnetic Wave Absorption Properties

Nanomaterials ◽  
2019 ◽  
Vol 9 (6) ◽  
pp. 845
Author(s):  
Qi Yu ◽  
Yiyi Wang ◽  
Ping Chen ◽  
Weicheng Nie ◽  
Hanlin Chen ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Electromagnetic Wave ◽  
Electron Microscope ◽  
Reduced Graphene Oxide ◽  
Fe3o4 Nanoparticles ◽  
Absorption Properties ◽  
Electromagnetic Wave Absorption ◽  
X Ray ◽  
Wave Absorption ◽  
Reduced Graphene

The efficient preparation of electromagnetic wave absorbing materials with low density and excellent electromagnetic wave absorption remains a considerable challenge. In this study, reduced graphene oxide (RGO) wrapped Fe3O4 nanoparticles (NPs) were synthesized based on one-step reaction by the reduction of graphene oxide (GO), and the generation of super-fine Fe3O4 NPs was achieved. The phase structure, chemical composition, micromorphology, and magnetism were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscope (XPS), scanning electron microscope (SEM), transmission electron microscope (TEM), and vibrating sample magnetometer (VSM), respectively. The electromagnetic characteristics were evaluated on a vector network analyzer by the coaxial line method. The results showed that super-fine Fe3O4 NPs with an average size of 6.18 nm are densely distributed on the surface of graphenes. The RGO/Fe3O4 nanocomposites exhibited excellent microwave absorption properties with a minimum reflection loss (RL) of up to −55.71 dB at 6.78 GHz at 3.5 mm thickness and the highest effective absorption bandwidth with RL values exceeding −10 dB is 4.76 GHz between 13.24 and 18 GHz at 1.7 mm thickness. This work provides a concise method for the development of RGO supported super dense Fe3O4 nanocomposites for high performance electromagnetic absorption applications.

scholarly journals Using printer ink color to control the behavior of paper microfluidics

Lab on a Chip ◽  
2019 ◽  
Vol 19 (11) ◽  
pp. 2000-2008 ◽  
Author(s):  
Joshua Potter ◽  
Philip Brisk ◽  
William H. Grover
Keyword(s):  
Microfluidic Devices ◽  
Paper Microfluidics ◽  
Paper Microfluidic

Different colors of wax inks behave differently in paper microfluidic devices, enabling the development of new color-based paper microfluidic components.

scholarly journals Mix-and-Read No-Wash Fluorescence DNA Sensing System Using Graphene Oxide: Analytical Performance of Fresh Versus Aged Dispersions

ACS Omega ◽  
2019 ◽  
Vol 4 (1) ◽  
pp. 1611-1616 ◽  
Author(s):  
C. Lorena Manzanares Palenzuela ◽  
Amir Masoud Pourrahimi ◽  
Zdeněk Sofer ◽  
Martin Pumera
Keyword(s):  
Graphene Oxide ◽  
Analytical Performance ◽  
Dna Sensing ◽  
Sensing System
Sign in / Sign up

Export Citation Format

Share Document