Hydrothermal Treatment of Grass: A Low-Cost, Green Route to Nitrogen-Doped, Carbon-Rich, Photoluminescent Polymer Nanodots as an Effective Fluorescent Sensing Platform for Label-Free Detection of Cu(II) Ions

2012 ◽  
Vol 24 (15) ◽  
pp. 2037-2041 ◽  
Author(s):  
Sen Liu ◽  
Jingqi Tian ◽  
Lei Wang ◽  
Yingwei Zhang ◽  
Xiaoyun Qin ◽  
...  
Keyword(s):  
Hydrothermal Treatment ◽  
Low Cost ◽  
Label Free ◽  
Nitrogen Doped ◽  
Fluorescent Sensing ◽  
Sensing Platform ◽  
Green Route ◽  
Label Free Detection ◽  
Nitrogen Doped Carbon

Green and economical synthesis of nitrogen-doped carbon dots from vegetables for sensing and imaging applications

RSC Advances ◽  
2015 ◽  
Vol 5 (115) ◽  
pp. 95223-95229 ◽  
Author(s):  
Xiaoqing Niu ◽  
Guosheng Liu ◽  
Luyao Li ◽  
Zheng Fu ◽  
Hang Xu ◽  
...  
Keyword(s):  
Carbon Source ◽  
Hydrothermal Treatment ◽  
Carbon Dots ◽  
Sole Carbon Source ◽  
Low Cost ◽  
One Pot ◽  
Nitrogen Doped ◽  
Sensing Platform ◽  
Doped Carbon Dots ◽  
Nitrogen Doped Carbon

A green, simple and low-cost approach was present to obtain N-doped C-dots using vegetables as the sole carbon source through facile one-pot hydrothermal treatment. The C-dots can serve as a suitable sensing platform for detection of Cu2+.

Nitrogen-doped carbon dots derived from electrospun carbon nanofibers for Cu(ii) ion sensing

2019 ◽  
Vol 43 (4) ◽  
pp. 1812-1817 ◽  
Author(s):  
Yang Li ◽  
Zhicheng Liu ◽  
Lu Bai ◽  
Yaqing Liu
Keyword(s):  
Carbon Nanofibers ◽  
Carbon Dots ◽  
Nitrogen Doped ◽  
Fluorescent Sensing ◽  
Ion Sensing ◽  
Sensing Platform ◽  
Doped Carbon Dots ◽  
Nitrogen Doped Carbon

Nitrogen-doped carbon dots were synthesized via the chemical breakdown of electrospun polyacrylonitrile-based carbon nanofibers and employed as a fluorescent sensing platform.

Sensitive and selective detection of copper ions using low cost nitrogen doped carbon quantum dots as a fluorescent sensing plateform

2017 ◽  
Vol 6 (2) ◽  
pp. 109-117 ◽  
Author(s):  
Vimal Singh ◽  
Vinod Kumar ◽  
Umakant Yadav ◽  
Rajesh Kr. Srivastava ◽  
Vidya Nand Singh ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Copper Ions ◽  
Low Cost ◽  
Carbon Quantum Dots ◽  
Selective Detection ◽  
Nitrogen Doped ◽  
Fluorescent Sensing ◽  
Nitrogen Doped Carbon

scholarly journals An Aptamer-Based Capacitive Sensing Platform for Specific Detection of Lung Carcinoma Cells in the Microfluidic Chip

Biosensors ◽  
2018 ◽  
Vol 8 (4) ◽  
pp. 98 ◽  
Author(s):  
Ngoc-Viet Nguyen ◽  
Chun-Hao Yang ◽  
Chung-Jung Liu ◽  
Chao-Hung Kuo ◽  
Deng-Chyang Wu ◽  
...  
Keyword(s):  
Lung Cancer ◽  
Lung Carcinoma ◽  
Early Stage ◽  
A549 Cells ◽  
Microfluidic Channel ◽  
Electrical Impedance Spectroscopy ◽  
Label Free ◽  
Early Stage Lung Cancer ◽  
Sensing Platform ◽  
Label Free Detection

Improvement of methods for reliable and early diagnosis of the cellular diseases is necessary. A biological selectivity probe, such as an aptamer, is one of the candidate recognition layers that can be used to detect important biomolecules. Lung cancer is currently a typical cause of cancer-related deaths. In this work, an electrical sensing platform is built based on amine-terminated aptamer modified-gold electrodes for the specific, label-free detection of a human lung carcinoma cell line (A549). The microdevice, that includes a coplanar electrodes configuration and a simple microfluidic channel on a glass substrate, is fabricated using standard photolithography and cast molding techniques. A procedure of self-assembly onto the gold surface is proposed. Optical microscope observations and electrical impedance spectroscopy measurements confirm that the fabricated microchip can specifically and effectively identify A549 cells. In the experiments, the capacitance element that is dominant in the change of the impedance is calculated at the appropriate frequency for evaluation of the sensitivity of the biosensor. Therefore, a simple, inexpensive, biocompatible, and selective biosensor that has the potential to detect early-stage lung cancer would be developed.

scholarly journals MALDIViz: A Comprehensive Informatics Tool for MALDI-MS Data Visualization and Analysis

2017 ◽  
Vol 22 (10) ◽  
pp. 1246-1252 ◽  
Author(s):  
Kishore Kumar Jagadeesan ◽  
Simon Ekström
Keyword(s):  
Mass Spectrometry ◽  
High Throughput ◽  
High Throughput Screening ◽  
Web Application ◽  
Low Cost ◽  
Maldi Ms ◽  
Ionization Mass ◽  
Label Free ◽  
Label Free Detection ◽  
R Shiny

Recently, mass spectrometry (MS) has emerged as an important tool for high-throughput screening (HTS) providing a direct and label-free detection method, complementing traditional fluorescent and colorimetric methodologies. Among the various MS techniques used for HTS, matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS) provides many of the characteristics required for high-throughput analyses, such as low cost, speed, and automation. However, visualization and analysis of the large datasets generated by HTS MALDI-MS can pose significant challenges, especially for multiparametric experiments. The datasets can be generated fast, and the complexity of the experimental data (e.g., screening many different sorbent phases, the sorbent mass, and the load, wash, and elution conditions) makes manual data analysis difficult. To address these challenges, a comprehensive informatics tool called MALDIViz was developed. This tool is an R-Shiny-based web application, accessible independently of the operating system and without the need to install any program locally. It has been designed to facilitate easy analysis and visualization of MALDI-MS datasets, comparison of multiplex experiments, and export of the analysis results to high-quality images.

Nickel nanocrystal/nitrogen-doped carbon composites as efficient and carbon monoxide-resistant electrocatalysts for methanol oxidation reactions

Nanoscale ◽  
2020 ◽  
Vol 12 (42) ◽  
pp. 21687-21694 ◽  
Author(s):  
Na Wu ◽  
Meixu Zhai ◽  
Fei Chen ◽  
Xue Zhang ◽  
Ruihong Guo ◽  
...  
Keyword(s):  
Methanol Oxidation ◽  
Oxidation Reaction ◽  
Low Cost ◽  
Methanol Oxidation Reaction ◽  
Carbon Composites ◽  
Oxidation Reactions ◽  
Facile Synthesis ◽  
Nitrogen Doped ◽  
Cost Efficient ◽  
Nitrogen Doped Carbon

Owing to its facile synthesis, outstanding activity and high stability, Ni/N–C@500 composite is promising as a low-cost, efficient and CO-resistant electrocatalyst for methanol oxidation reaction (MOR).

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