Graphene quantum dot-functionalized three-dimensional ordered mesoporous ZnO for acetone detection toward diagnosis of diabetes

Nanoscale ◽  
2019 ◽  
Vol 11 (24) ◽  
pp. 11496-11504 ◽  
Author(s):  
Wei Liu ◽  
Xiangyu Zhou ◽  
Lin Xu ◽  
Shidong Zhu ◽  
Shuo Yang ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Three Dimensional ◽  
Graphene Quantum Dot ◽  
Ordered Mesoporous ◽  
Highly Sensitive ◽  
Sensitive Sensor ◽  
Mesoporous Zno ◽  
Self Assembled ◽  
Acetone Detection

Self-assembled GQD-modified 3DOM ZnO was developed as a highly sensitive sensor for trace acetone detection toward the diagnosis of diabetes.

Highly sensitive and selective fluorescent detection of cerebral lead(ii) based on graphene quantum dot conjugates

2013 ◽  
Vol 49 (90) ◽  
pp. 10599 ◽  
Author(s):  
Yan-Xia Qi ◽  
Min Zhang ◽  
Qian-Qian Fu ◽  
Ran Liu ◽  
Guo-Yue Shi
Keyword(s):  
Quantum Dot ◽  
Fluorescent Detection ◽  
Graphene Quantum Dot ◽  
Highly Sensitive

A highly sensitive sensor based on ordered mesoporous ZnFe2O4 for electrochemical detection of dopamine

2020 ◽  
Vol 1096 ◽  
pp. 26-33 ◽  
Author(s):  
Yarong Huang ◽  
Ying Tang ◽  
Shichong Xu ◽  
Ming Feng ◽  
Yongsheng Yu ◽  
...  
Keyword(s):  
Electrochemical Detection ◽  
Ordered Mesoporous ◽  
Highly Sensitive ◽  
Sensitive Sensor

A highly sensitive sensor for the detection of nitrite based on a nanoporous Fe2O3–CoO composite

2014 ◽  
Vol 6 (9) ◽  
pp. 3147-3151 ◽  
Author(s):  
Jinping Wang ◽  
Dianyun Zhao ◽  
Yu Zhang ◽  
Juefei Li ◽  
Caixia Xu
Keyword(s):  
Three Dimensional ◽  
Structure Stability ◽  
Highly Sensitive ◽  
Sensitive Sensor ◽  
Analytical Utility ◽  
Performance Structure ◽  
Sensing Performance

A nanoporous (NP) Fe2O3–CoO composite, with an open three-dimensional bicontinuous nanoparticle architecture, was easily fabricated by selectively dealloying Fe5Co5Al90, exhibiting great sensing performance, structure stability, and analytical utility for nitrite sensing.

Three-Dimensional Control of Self-Assembled Quantum Dot Configurations

ACS Nano ◽  
2010 ◽  
Vol 4 (7) ◽  
pp. 3877-3882 ◽  
Author(s):  
Michael K. Yakes ◽  
Cory D. Cress ◽  
Joseph G. Tischler ◽  
Allan S. Bracker
Keyword(s):  
Quantum Dot ◽  
Three Dimensional ◽  
Dimensional Control ◽  
Self Assembled

Boron-doped and serine and histidine-functionalized graphene quantum dot with strong yellow fluorescence emission for highly sensitive detection of carbofuran in cucumber and cabbage

2021 ◽  
Author(s):  
Na Wang ◽  
Ruiyi Li ◽  
Qinsheng Wang ◽  
Yongqiang Yang ◽  
Nana Li ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Graphene Quantum Dots ◽  
Fluorescence Emission ◽  
Functionalized Graphene ◽  
Yellow Fluorescence ◽  
Graphene Quantum Dot ◽  
Boron Doped ◽  
Highly Sensitive ◽  
Light Excitation ◽  
Highly Sensitive Detection

Weak fluorescence at visible light excitation limits many applications of graphene quantum dots. The paper reports synthesis of boron-doped and serine and histidine-functionalized graphene quantum dot (B-Ser-His-GQD). The resulting B-Ser-His-GQD...

scholarly journals Spontaneous Self-Embedding of Three-Dimensional SiGe Islands

1999 ◽  
Vol 571 ◽  
Author(s):  
E. Mateeva ◽  
P. Sutter ◽  
M. G. Lagally
Keyword(s):  
Quantum Dot ◽  
Matrix Material ◽  
Three Dimensional ◽  
Self Assembled

ABSTRACTIt is shown that. under appropriate conditions, high-Ge-concentration coherent 3D SiGe islands grown on Si(100) self-embed in a matrix of low-Ge-concentration alloy. The process may be more generally useful for preserving the shape of self-assembled “quantum dot” islands during embedding in a matrix material.

Size and Piezoelectric Effects on Optical Properties of Self-Assembled InGaAs/GaAs Quantum Dots

2006 ◽  
Author(s):  
M. K. Kuo ◽  
T. R. Lin ◽  
K. B. Hong
Keyword(s):  
Quantum Dots ◽  
Optical Properties ◽  
Quantum Dot ◽  
Optical Transition ◽  
Energy Levels ◽  
Three Dimensional ◽  
Dinger Equation ◽  
Element Analysis ◽  
Piezoelectric Effects ◽  
Self Assembled

Size effects on optical properties of self-assembled quantum dots are analyzed based on the theories of linear elasticity and of strain-dependent k-p with the aid of finite element analysis. The quantum dot is made of InGaAs with truncated pyramidal shape on GaAs substrate. The three-dimensional steady-state effective-mass Schro¨dinger equation is adopted to find confined energy levels as well as wave functions both for electrons and holes of the quantum-dot nanostructures. Strain-induced as well as piezoelectric effects are taken into account in the carrier confinement potential of Schro¨dinger equation. The optical transition energies of quantum dots, computed from confined energy levels for electrons and holes, are significantly different for several quantum dots with distinct sizes. It is found that for QDs with the the larger the volume of QD is, the smaller the values of the optical transition energy. Piezoelectric effect, on the other hand, splits the p-like degeneracy for the electron first excited state about 1~7 meV, and leads to anisotropy on the wave function.

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