Study on the oriented self-assembly of cuprous oxide micro-nano cubes and its application as a non-enzymatic glucose sensor

2022 ◽  
pp. 112317
Author(s):  
Wenbin Liu ◽  
Xingming Zhao ◽  
Yuxiang Dai ◽  
Yang Qi
Keyword(s):  
Cuprous Oxide ◽  
Self Assembly ◽  
Glucose Sensor

Preparation of Cu2O nanocubes with different sizes and rough surfaces by a seed-mediated self-assembly process and their application as a non-enzymatic glucose sensor

2020 ◽  
Vol 44 (36) ◽  
pp. 15662-15670 ◽  
Author(s):  
Wenbin Liu ◽  
Guochun Chai ◽  
Jian Zhang ◽  
Mingguang Wang ◽  
Yuxiang Dai ◽  
...  
Keyword(s):  
Cuprous Oxide ◽  
Self Assembly ◽  
Glucose Sensor ◽  
Rough Surfaces ◽  
Assembly Process ◽  
Seed Mediated

In this study, ultrafine and uniform cuprous oxide (Cu2O) nanocubes with different sizes and rough surfaces were prepared via a seed-mediated process.

Effect of different copper sources on the morphology of cuprous oxide and its application as a non-enzymatic glucose sensor

2020 ◽  
Vol 321 ◽  
pp. 128485
Author(s):  
Wenbin Liu ◽  
Guochun Chai ◽  
Xingming Zhao ◽  
Yuxiang Dai ◽  
Yang Qi
Keyword(s):  
Cuprous Oxide ◽  
Glucose Sensor

scholarly journals Electric-Field-Directed Self-Assembly of Active Enzyme-Nanoparticle Structures

2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
Alexander P. Hsiao ◽  
Michael J. Heller
Keyword(s):  
Electric Field ◽  
Self Assembly ◽  
Microelectrode Array ◽  
Glucose Sensor ◽  
Directed Assembly ◽  
Passive Layer ◽  
Higher Order ◽  
Significant Loss ◽  
Layer By Layer ◽  
Multilayered Structures

A method is presented for the electric-field-directed self-assembly of higher-order structures composed of alternating layers of biotin nanoparticles and streptavidin-/avidin-conjugated enzymes carried out on a microelectrode array device. Enzymes included in the study were glucose oxidase (GOx), horseradish peroxidase (HRP), and alkaline phosphatase (AP); all of which could be used to form a light-emitting microscale glucose sensor. Directed assembly included fabricating multilayer structures with 200 nm or 40 nm GOx-avidin-biotin nanoparticles, with AP-streptavidin-biotin nanoparticles, and with HRP-streptavidin-biotin nanoparticles. Multilayered structures were also fabricated with alternate layering of HRP-streptavidin-biotin nanoparticles and GOx-avidin-biotin nanoparticles. Results showed that enzymatic activity was retained after the assembly process, indicating that substrates could still diffuse into the structures and that the electric-field-based fabrication process itself did not cause any significant loss of enzyme activity. These methods provide a solution to overcome the cumbersome passive layer-by-layer assembly methods to efficiently fabricate higher-order active biological and chemical hybrid structures that can be useful for creating novel biosensors and drug delivery nanostructures, as well as for diagnostic applications.

Self-assembly of cuprous oxide nanoparticles supported on reduced graphene oxide and their enhanced performance for catalytic reduction of nitrophenols

RSC Advances ◽  
2015 ◽  
Vol 5 (87) ◽  
pp. 71259-71267 ◽  
Author(s):  
Chengke Wu ◽  
Xiaoyu An ◽  
Shuyan Gao ◽  
Li Su
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Cuprous Oxide ◽  
Self Assembly ◽  
Catalytic Reduction ◽  
Catalytic Efficiency ◽  
Oxide Nanoparticles ◽  
Cuprous Oxide Nanoparticles ◽  
Reduced Graphene

Mechanism for the catalytic reduction of nitrophenols; the catalyst can be reused with nearly invariable high catalytic efficiency.

Self-Assembly of Cuprous Oxide Micro/Nanostructures by Photo-Reduction Method

2010 ◽  
Vol 97-101 ◽  
pp. 2180-2183
Author(s):  
Wen Ku Chang ◽  
Yu Shiang Wu ◽  
Zhong Han Shen
Keyword(s):  
Electron Density ◽  
Cuprous Oxide ◽  
Self Assembly ◽  
Reduction Method ◽  
Crystal Surface ◽  
Solution Concentration ◽  
Basic Unit ◽  
Growth Surface ◽  
Gradient Distribution ◽  
Self Assembled

This study used a photo-reduction method to investigate cuprous oxide (Cu2O) self-assembled micro/nanostructures, and design a test specimen with an electron concentration gradient distribution. It also observed the Cu2O reduction of the self-assembled structure with respect to electron density. SEM analysis was adopted to analyze the growth mechanism and growth model. The results showed that, its structure size increased with photo-reduction time, and as the reduction solution concentration increased, its structure crystallinity declined. The basic unit of a self-assembled microstructure was Cu2O at a diameter of 10~15nm, then these particles conglomerate in self-assembly to form various kinds of Cu2O micro/nanostructures with respect to reduction electron density, and primarily presented in the form of a cone or cube. In the process of continuous self-assembly, there were many micro-defects under the perfect crystal surface. Considering the growth rate, the final growth surface of the structure was (111) or (100).

Self-assembly of phosphorescent quantum dots/boronic-acid-substituted viologen nanohybrids based on photoinduced electron transfer for glucose detection in aqueous solution

RSC Advances ◽  
2016 ◽  
Vol 6 (11) ◽  
pp. 8588-8593 ◽  
Author(s):  
Yanming Miao ◽  
Maoqing Yang ◽  
Guiqin Yan
Keyword(s):  
Aqueous Solution ◽  
Quantum Dots ◽  
Electron Transfer ◽  
Self Assembly ◽  
Boronic Acid ◽  
Photoinduced Electron Transfer ◽  
Room Temperature ◽  
Glucose Sensor ◽  
Glucose Detection ◽  
Room Temperature Phosphorescence

We synthesized boronic-acid-substituted viologens (BBV) and designed a glucose sensor based on room-temperature phosphorescence (RTP) quantum dots (QDs) and BBV.

scholarly journals Development of scattering based glucose sensor using hydrothermally synthesized cuprous oxide nanoparticles

2019 ◽  
Vol 15 ◽  
pp. 102772
Author(s):  
Swati Singh ◽  
Utkarsh Kumar ◽  
B.C. Yadav ◽  
Kuldeep Kumar ◽  
Ravi Kant Tripathi ◽  
...  
Keyword(s):  
Cuprous Oxide ◽  
Glucose Sensor ◽  
Oxide Nanoparticles ◽  
Cuprous Oxide Nanoparticles

Electrochemical self-assembly of Cu/Cu2O nanowires

2002 ◽  
Vol 17 (2) ◽  
pp. 401-406 ◽  
Author(s):  
S. Kenane ◽  
L. Piraux
Keyword(s):  
Current Density ◽  
Cuprous Oxide ◽  
Self Assembly ◽  
Electrical Transport ◽  
Electrode Potential ◽  
Polymer Membranes ◽  
Applied Current ◽  
Cathodic Current ◽  
Applied Current Density ◽  
Pure Cu

Arrays of Cu/Cu2O nanowires were grown by electrodeposition in the nanopores of track-etched polymer membranes. If an appropriate solution is used, the electrode potential spontaneously oscillates during the application of a constant cathodic current. Both the period of the oscillations and the composition of the nanowires can be controlled by varying the applied current density. A nanocomposite of copper and cuprous oxide is deposited at an applied current over which oscillations occur. In contrast, pure Cu or Cu2O nanowires are obtained at a deposition current out of the range of oscillation. Electrical transport measurements were also performed on these nanowires.

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