Surface-engineered quantum dots/electrospun nanofibers as a networked fluorescence aptasensing platform toward biomarkers

Nanoscale ◽  
2017 ◽  
Vol 9 (43) ◽  
pp. 17020-17028 ◽  
Author(s):  
Tong Yang ◽  
Peng Hou ◽  
Lin Ling Zheng ◽  
Lei Zhan ◽  
Peng Fei Gao ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Electrospun Nanofibers ◽  
Nanofibrous Membranes

QD-lit and networked electrospun nanofibrous membranes were employed as an aptasensor to facilely, sensitively and specifically detect biomarkers based on NSET between QDs and AuNPs.

scholarly journals Biosensors for the Detection of Bacterial and Viral Clinical Pathogens

Sensors ◽  
2020 ◽  
Vol 20 (23) ◽  
pp. 6926
Author(s):  
Luis Castillo-Henríquez ◽  
Mariana Brenes-Acuña ◽  
Arianna Castro-Rojas ◽  
Rolando Cordero-Salmerón ◽  
Mary Lopretti-Correa ◽  
...  
Keyword(s):  
Quantum Dots ◽  
New Technologies ◽  
Point Of Care ◽  
Graphene Quantum Dots ◽  
Electrospun Nanofibers ◽  
Comprehensive Review ◽  
Measurement Devices ◽  
Clinical Pathogens ◽  
And Performance ◽  
The One

Biosensors are measurement devices that can sense several biomolecules, and are widely used for the detection of relevant clinical pathogens such as bacteria and viruses, showing outstanding results. Because of the latent existing risk of facing another pandemic like the one we are living through due to COVID-19, researchers are constantly looking forward to developing new technologies for diagnosis and treatment of infections caused by different bacteria and viruses. Regarding that, nanotechnology has improved biosensors’ design and performance through the development of materials and nanoparticles that enhance their affinity, selectivity, and efficacy in detecting these pathogens, such as employing nanoparticles, graphene quantum dots, and electrospun nanofibers. Therefore, this work aims to present a comprehensive review that exposes how biosensors work in terms of bacterial and viral detection, and the nanotechnological features that are contributing to achieving a faster yet still efficient COVID-19 diagnosis at the point-of-care.

Electrospun nanofibers: a promising horizon toward the detection and treatment of cancer

The Analyst ◽  
2020 ◽  
Vol 145 (8) ◽  
pp. 2854-2872 ◽  
Author(s):  
Sahar Asghari ◽  
Zahra Rezaei ◽  
Matin Mahmoudifard
Keyword(s):  
Cancer Detection ◽  
Potential Application ◽  
Electrospun Nanofibers ◽  
Nanofibrous Membranes

Potential application of electrospun nanofibrous membranes in cancer detection and treatment.

scholarly journals Micropatterning MoS2/Polyamide Electrospun Nanofibrous Membranes Using Femtosecond Laser Pulses

Photonics ◽  
2019 ◽  
Vol 6 (1) ◽  
pp. 3 ◽  
Author(s):  
Kelly T. Paula ◽  
Luiza A. Mercante ◽  
Rodrigo Schneider ◽  
Daniel S. Correa ◽  
Cleber R. Mendonca
Keyword(s):  
Laser Ablation ◽  
Composite Nanofibers ◽  
Electrospun Nanofibers ◽  
Scanning Speed ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
Spectroscopic Techniques ◽  
Fs Laser ◽  
Nanofibrous Membranes ◽  
Scale Control

The capability of modifying and patterning the surface of polymer and composite materials is of high significance for various biomedical and electronics applications. For example, the use of femtosecond (fs) laser ablation for micropatterning electrospun nanofiber scaffolds can be successfully employed to fabricate complex polymeric biomedical devices, including scaffolds. Here we investigated fs-laser ablation as a flexible and convenient method for micropatterning polyamide (PA6) electrospun nanofibers that were modified with molybdenum disulfide (MoS2). We studied the influence of the laser pulse energy and scanning speed on the topography of electrospun composite nanofibers, as well as the irradiated areas via scanning electron microscopy and spectroscopic techniques. The results showed that using the optimal fs-laser parameters, micropores were formed on the electrospun nanofibrous membranes with size scale control, while the nature of the nanofibers was preserved. MoS2-modified PA6 nanofibrous membranes showed good photoluminescence properties, even after fs-laser microstructuring. The results presented here demonstrated potential application in optoelectronic devices. In addition, the application of this technique has a great deal of potential in the biomedical field, such as in tissue engineering.

Electrospun Nanofibers Embedded with Perovskite Quantum Dots

2020 ◽  
pp. 337-346
Author(s):  
Manikandan Venkatesan ◽  
Loganathan Veeramuthu ◽  
Fang-Cheng Liang ◽  
Chia-Jung Cho ◽  
Chi-Ching Kuo
Keyword(s):  
Quantum Dots ◽  
Electrospun Nanofibers ◽  
Perovskite Quantum Dots

Carbon Quantum Dots–Europium(III) Energy Transfer Architecture Embedded in Electrospun Nanofibrous Membranes for Fingerprint Security and Document Counterspy

2019 ◽  
Vol 91 (17) ◽  
pp. 11185-11191 ◽  
Author(s):  
Rong Sheng Li ◽  
Jia Hui Liu ◽  
Tong Yang ◽  
Peng Fei Gao ◽  
Jian Wang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Energy Transfer ◽  
Carbon Quantum Dots ◽  
Nanofibrous Membranes

A general strategy for fabricating flexible magnetic silica nanofibrous membranes with multifunctionality

2015 ◽  
Vol 51 (63) ◽  
pp. 12521-12524 ◽  
Author(s):  
Yang Si ◽  
Chengcheng Yan ◽  
Feifei Hong ◽  
Jianyong Yu ◽  
Bin Ding
Keyword(s):  
Electrospun Nanofibers ◽  
General Strategy ◽  
Hierarchical Porous ◽  
Magnetic Silica ◽  
Nanofibrous Membranes

Flexible, magnetic, and hierarchical porous NiFe2O4@SiO2 nanofibrous membranes with multifunctionality were prepared by combining the gelatin method with electrospun nanofibers.

scholarly journals Multichannel Discriminative Detection of Explosive Vapors with an Array of Nanofibrous Membranes Loaded with Quantum Dots

Sensors ◽  
2017 ◽  
Vol 17 (11) ◽  
pp. 2676 ◽  
Author(s):  
Zhaofeng Wu ◽  
Haiming Duan ◽  
Zhijun Li ◽  
Jixi Guo ◽  
Furu Zhong ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Nanofibrous Membranes

scholarly journals Arced Multi-Nozzle Electrospinning Spinneret for High-Throughput Production of Nanofibers

Micromachines ◽  
2019 ◽  
Vol 11 (1) ◽  
pp. 27 ◽  
Author(s):  
Jiaxin Jiang ◽  
Gaofeng Zheng ◽  
Xiang Wang ◽  
Wenwang Li ◽  
Guoyi Kang ◽  
...  
Keyword(s):  
High Throughput ◽  
Applied Voltage ◽  
Production Efficiency ◽  
Electrospun Nanofibers ◽  
Average Diameter ◽  
Electrical Field ◽  
Multiple Jets ◽  
Nanofibrous Membranes ◽  
Stretching Effect ◽  
Electrical Interference

The stable and continuous ejection of multiple jets with high densities is the key to the application of electrospinning technology. An arced multi-nozzle spinneret was designed to increase the production efficiency of electrospinning. The distribution of the electrical field was simulated to optimize the nozzles’ distribution of the spinneret. When the nozzles were arranged in an arc array, a relatively uniform electrical field could be obtained, which was beneficial for the weakening of electrical interference among the nozzles. Under the optimized electrical field, multiple jets from each nozzle could be ejected in a stable and continuous way. With the increase of the applied voltage, the electrical stretching force became larger, and there were fewer bonding structures. The average diameter of the electrospun nanofibers decreased with the increase of the applied voltage. When the distance between the inner nozzle and the collector increased, the charged jets suffered a larger stretching effect, resulting in the decrease of the average diameter of the electrospun nanofibers. The electrospinning current increased with the applied voltage and decreased with the distance between the inner nozzle and the collector, which is an important aspect for the monitoring of electrospinning jets. This work provides an effective way to promote the production efficiency of electrospun nanofibrous membranes.

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.

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