scholarly journals Tailoring the edges of graphene quantum dots to establish localized π–π interactions with aromatic molecules

RSC Advances ◽  
2015 ◽  
Vol 5 (51) ◽  
pp. 41248-41254 ◽  
Author(s):  
Shujun Wang ◽  
Zachary Lemon ◽  
Ivan S. Cole ◽  
Qin Li
Keyword(s):  
Quantum Dots ◽  
Graphene Quantum Dots ◽  
Π Interactions ◽  
Aromatic Molecules ◽  
Efficient Detection

Partially ring-terminated graphene quantum dots enable efficient detection of aromatic molecules via the edge-localized π–π interaction.

Highly efficient detection of cancer-derived exosomes using modified core–shell electrospun nanofibers as a capture substrate and antibody immobilized-graphene quantum dots as a signaling agent

2020 ◽  
Vol 12 (28) ◽  
pp. 3670-3681
Author(s):  
Fatemeh Barati ◽  
Ayyoob Arpanaei ◽  
Matin Mahmoudifard
Keyword(s):  
Quantum Dots ◽  
Medical Diagnosis ◽  
Graphene Quantum Dots ◽  
Electrospun Nanofibers ◽  
Core Shell ◽  
The Past ◽  
Highly Efficient ◽  
Efficient Detection

In the past few years graphene quantum dots (GQDs) have been used as a signaling agent for medical diagnosis.

Graphene quantum dots as a fluorescent sensing platform for highly efficient detection of copper(II) ions

2014 ◽  
Vol 190 ◽  
pp. 516-522 ◽  
Author(s):  
Fengxiang Wang ◽  
Zhenyan Gu ◽  
Wu Lei ◽  
Wenjuan Wang ◽  
Xifeng Xia ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Graphene Quantum Dots ◽  
Fluorescent Sensing ◽  
Highly Efficient ◽  
Efficient Detection ◽  
Sensing Platform

Biofunctionalized Graphene Quantum Dots Based Fluorescent Biosensor toward Efficient Detection of Small Cell Lung Cancer

2020 ◽  
Vol 3 (8) ◽  
pp. 4922-4932 ◽  
Author(s):  
Ashish Kalkal ◽  
Rangadhar Pradhan ◽  
Sachin Kadian ◽  
Gaurav Manik ◽  
Gopinath Packirisamy
Keyword(s):  
Lung Cancer ◽  
Quantum Dots ◽  
Small Cell Lung Cancer ◽  
Cell Lung Cancer ◽  
Graphene Quantum Dots ◽  
Small Cell ◽  
Small Cell Lung ◽  
Fluorescent Biosensor ◽  
Efficient Detection

scholarly journals Label Free Glucose Electrochemical Biosensor Based on Poly(3,4-ethylenedioxy thiophene):Polystyrene Sulfonate/Titanium Carbide/Graphene Quantum Dots

Biosensors ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 267
Author(s):  
Siti Nur AshakirinMohd Nashruddin ◽  
Jaafar Abdullah ◽  
Muhammad Aniq Shazni Mohammad Haniff ◽  
Mohd Hazani Mat Zaid ◽  
Ooi Poh Choon ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Titanium Carbide ◽  
Electrochemical Behavior ◽  
Electrochemical Biosensor ◽  
Graphene Quantum Dots ◽  
Glucose Sensing ◽  
Polystyrene Sulfonate ◽  
Composite Nanomaterial ◽  
Efficient Detection ◽  
Screen Printed

The electrochemical biosensor devices based on enzymes for monitoring biochemical substances are still considered attractive. We investigated the immobilization of glucose oxidase (GOx) on a new composite nanomaterial poly(3,4-ethylenedioxythiophene): polystyrene sulfonate (PEDOT:PSS)/titanium carbide,(Ti3C2)/graphene quantum dots(GQD) modified screen-printed carbon electrode (SPCE) for glucose sensing. The characterization and electrochemical behavior of PEDOT:PSS/Ti3C2/GQD towards the electrocatalytic oxidation of GOx was analyzed by FTIR, XPS, SEM, cyclic voltammetry (CV), and differential pulse voltammetry (DPV). This composite nanomaterial was found to tend to increase the electrochemical behavior and led to a higher peak current of 100.17 µA compared to 82.01 µA and 95.04 µA for PEDOT:PSS and PEDOT:PSS/Ti3C2 alone. Moreover, the detection results demonstrated that the fabricated biosensor had a linear voltammetry response in the glucose concentration range 0–500µM with a relatively sensitivity of 21.64 µAmM−1cm−2 and a detection limit of 65 µM (S/N = 3), with good stability and selectivity. This finding could be useful as applicable guidance for the modification screen printed carbon (SPCE) electrodes focused on composite PEDOT:PSS/Ti3C2/GQD for efficient detection using an enzyme-based biosensor.

Preparation of Graphene Quantum Dots and Their Biological Applications

2016 ◽  
Vol 31 (4) ◽  
pp. 337 ◽  
Author(s):  
SUN Xiao-Dan ◽  
LIU Zhong-Qun ◽  
YAN Hao
Keyword(s):  
Quantum Dots ◽  
Graphene Quantum Dots ◽  
Biological Applications

Effect of graphene quantum dots on intestinal imaging and mesenteric microcirculation in mice

2014 ◽  
Vol 35 (4) ◽  
pp. 372
Author(s):  
Yong-qiang MA ◽  
Zhen-guo WANG ◽  
Xue-li GOU ◽  
Na LI ◽  
Ya-qiang FENG ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Graphene Quantum Dots ◽  
Mesenteric Microcirculation
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