Visible-Blind Au/ZnO Quantum Dots-Based Highly Sensitive and Spectrum Selective Schottky Photodiode

2017 ◽  
Vol 64 (7) ◽  
pp. 2874-2880 ◽  
Author(s):  
Yogesh Kumar ◽  
Hemant Kumar ◽  
Bratindranath Mukherjee ◽  
Gopal Rawat ◽  
Chandan Kumar ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Highly Sensitive ◽  
Zno Quantum Dots ◽  
Schottky Photodiode ◽  
Visible Blind

scholarly journals P2GS.15 - Highly Sensitive Acetylene Sensing Properties of Al- and In-doped ZnO Quantum Dots

2018 ◽  
Author(s):  
M. S. Park ◽  
R. Yoo ◽  
B. Jang ◽  
Y. Park ◽  
M.H. Kim ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Sensing Properties ◽  
Highly Sensitive ◽  
Doped Zno ◽  
Zno Quantum Dots

Highly sensitive and selective isoprene sensing performance of ZnO quantum dots for a breath analyzer

2019 ◽  
Vol 290 ◽  
pp. 258-266 ◽  
Author(s):  
Yunji Park ◽  
Ran Yoo ◽  
Seung ryull Park ◽  
Jun Ho Lee ◽  
Hwaebong Jung ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Breath Analyzer ◽  
Highly Sensitive ◽  
Zno Quantum Dots ◽  
Sensing Performance

Highly Sensitive Acetone Gas Sensors Based on in-Doped ZnO Quantum Dots Fabricated By Morphology Controlled Synthesis

2020 ◽  
Vol MA2020-01 (28) ◽  
pp. 2121-2121
Author(s):  
Jun Ho Lee ◽  
Seung-Eun Baek ◽  
Hyun-Sook Lee ◽  
Dahl-Young Khang ◽  
Wooyoung Lee
Keyword(s):  
Quantum Dots ◽  
Gas Sensors ◽  
Controlled Synthesis ◽  
Highly Sensitive ◽  
Doped Zno ◽  
Zno Quantum Dots

ZnO quantum dots and graphene based heterostructure for excellent photoelastic and highly sensitive ultraviolet photodetector

RSC Advances ◽  
2015 ◽  
Vol 5 (110) ◽  
pp. 90838-90846 ◽  
Author(s):  
Buddha Deka Boruah ◽  
Abha Misra
Keyword(s):  
Quantum Dots ◽  
Zinc Oxide ◽  
Ultraviolet Photodetector ◽  
Highly Sensitive ◽  
Zno Quantum Dots ◽  
Ultraviolet Photodetectors ◽  
Zno Qds

Heterostructures comprised of zinc oxide quantum dots (ZnO QDs) and graphene are presented for ultraviolet photodetectors (UV PD).

Quantitative detection of uric acid through ZnO quantum dots based highly sensitive electrochemical biosensor

2018 ◽  
Vol 283 ◽  
pp. 282-290 ◽  
Author(s):  
Muhsin Ali ◽  
Imran Shah ◽  
Soo Wan Kim ◽  
Memoon Sajid ◽  
Jong Hwan Lim ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Uric Acid ◽  
Electrochemical Biosensor ◽  
Quantitative Detection ◽  
Highly Sensitive ◽  
Zno Quantum Dots

Detection of Glucose in Human Serum Based on Silicon Dot Probe

2020 ◽  
Vol 16 (6) ◽  
pp. 744-752
Author(s):  
Kuan Luo ◽  
Xinyu Jiang
Keyword(s):  
Quantum Dots ◽  
Blood Glucose ◽  
Human Serum ◽  
Organic Dyes ◽  
Limit Of Detection ◽  
Fasting Blood Glucose ◽  
Glucose Biosensor ◽  
Metal Nanoclusters ◽  
Glucose Levels ◽  
Highly Sensitive

Background: Diabetes Mellitus (DM) is a major public metabolic disease that influences 366 million people in the world in 2011, and this number is predicted to rise to 552 million in 2030. DM is clinically diagnosed by a fasting blood glucose that is equal or greater than 7 mM. Therefore, the development of effective glucose biosensor has attracted extensive attention worldwide. Fluorescence- based strategies have sparked tremendous interest due to their rapid response, facile operation, and excellent sensitivity. Many fluorescent compounds have been employed for precise analysis of glucose, including quantum dots, noble metal nanoclusters, up-converting nanoparticles, organic dyes, and composite fluorescent microspheres. Silicon dot as promising quantum dots materials have received extensive attention, owing to their distinct advantages such as biocompatibility, low toxicity and high photostability. Methods: MnO2 nanosheets on the Si nanoparticles (NPs) surface serve as a quencher. Si NPs fluorescence can make a recovery by the addition of H2O2, which can reduce MnO2 to Mn2+, and the glucose can thus be monitored based on the enzymatic conversion of glucose by glucose oxidase to generate H2O2. Therefore, the glucose concentration can be derived by recording the fluorescence recovery spectra of the Si NPs. Results: This probe enabled selective detection of glucose with a linear range of 1-100 μg/mL and a limit of detection of 0.98 μg/mL. Compared with the commercial glucometer, this method showed favorable results and convincing reliability. Conclusion: We have developed a novel method based on MnO2 -nanosheet-modified Si NPs for rapid monitoring of blood glucose levels. By combining the highly sensitive H2O2/MnO2 reaction with the excellent photostability of Si NPs, a highly sensitive, selective, and cost-efficient sensing approach for glucose detection has been designed and applied to monitor glucose levels in human serum with satisfactory results.

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