Transfroming of Random Lasing to Fabry–Perot Lasing: Observation of High Temperature Lasing from Carbon Dots

Nanoscale ◽  
2021 ◽  
Author(s):  
Yiqun Ni ◽  
Xiangyang Li ◽  
Wenqing Liang ◽  
Shaofeng Zhang ◽  
Xuesong Xu ◽  
...  
Keyword(s):  
High Temperature ◽  
Carbon Dots ◽  
High Stability ◽  
Low Cost ◽  
Academic Research ◽  
Random Lasing ◽  
Fabry Perot ◽  
Low Toxicity

Carbon dots (CDs), a subject of academic research, have attracted intense attention due to their intrinsic merits of high stability, low cost, and low toxicity. However, the absence of highly...

A turn-on fluorescent sensor based on carbon dots from Sophora japonica leaves for the detection of glyphosate

2020 ◽  
Vol 12 (33) ◽  
pp. 4130-4138
Author(s):  
Jingzhou Hou ◽  
Xianfeng Wang ◽  
Shiyu Lan ◽  
Chao Zhang ◽  
Changjun Hou ◽  
...  
Keyword(s):  
Carbon Dots ◽  
Fluorescent Sensor ◽  
Low Cost ◽  
Sophora Japonica ◽  
Turn On ◽  
Fluorescent Nanoprobe ◽  
Green Route ◽  
Low Toxicity

Carbon dots (CDs) having low cost and low toxicity and synthesized via a green route were applied to establish a fluorescent nanoprobe for the measurement of glyphosate.

Low-cost fiber-tip Fabry-Perot interferometer and its application for high temperature sensing

2014 ◽  
Vol 12 (s1) ◽  
pp. S10609-310611
Author(s):  
Xiaogang Jiang Xiaogang Jiang ◽  
Daru Chen Daru Chen ◽  
Jie Shao Jie Shao ◽  
Gaofeng Feng Gaofeng Feng ◽  
Junyong Yang Junyong Yang
Keyword(s):  
High Temperature ◽  
Low Cost ◽  
Temperature Sensing ◽  
Fabry Perot

scholarly journals Distinctive Optical Transitions of Tunable Multicolor Carbon Dots

2022 ◽  
Author(s):  
Hyeong Seop Shim ◽  
Jun Myung Kim ◽  
Seonghyun Jeong ◽  
Youngwon Ju ◽  
Sung Jae Won ◽  
...  
Keyword(s):  
Quantum Yield ◽  
Electronic Structures ◽  
Carbon Dots ◽  
High Stability ◽  
Optical Transitions ◽  
High Quantum Yield ◽  
High Quantum ◽  
Low Toxicity

Three types of carbon dots (CDs) are synthesized from isomers of phenylenediamine to develop multicolor nanomaterials with low toxicity, high stability, and high quantum yield. The distinctive electronic structures of...

A Novel Fe 1-xO-Based Fused Iron Catalyst for Fischer-Tropsch Synthesis with the High Olefine Selectivity

2012 ◽  
Vol 512-515 ◽  
pp. 2207-2211
Author(s):  
Hua Zhang Liu ◽  
Xia Zhen Yang ◽  
Ya Qing Cen ◽  
Hao Dong Tang
Keyword(s):  
High Temperature ◽  
Low Temperature ◽  
High Stability ◽  
Iron Catalyst ◽  
Low Cost ◽  
Fixed Bed ◽  
Fixed Bed Reactor ◽  
Preparation Process ◽  
Fischer Tropsch ◽  
Fused Iron Catalyst

The performance and stability for FTS was studied on novel Fe1-xO-based iron catalyst (FIC) in agitated slurry reactor (ASR) and fixed bed reactor (FBR), and compared with precipitation-iron catalyst (PIC). The studied results indicate that novel Fe1-xO-based iron catalyst has the high conversion and high stability, especially, the high alkene selectivity in C2 ~ C4 products that the ratios of olefines and paraffines the more than 9 and the low cost, the preparation process and the high mechanical intensity. The catalyst can be used at FBR or ASR, and FTS at high temperature or low temperature.

scholarly journals Carbon Dots and Graphene Quantum Dots in Electrochemical Biosensing

Nanomaterials ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. 634 ◽  
Author(s):  
Susana Campuzano ◽  
Paloma Yáñez-Sedeño ◽  
José M. Pingarrón
Keyword(s):  
Quantum Dots ◽  
Carbon Dots ◽  
Low Cost ◽  
Graphene Quantum Dots ◽  
Advantages And Disadvantages ◽  
Electrochemical Biosensing ◽  
Chemical Inertness ◽  
Low Toxicity ◽  
Carbon Based Nanomaterials ◽  
Surface Chemistries

Graphene quantum dots (GQDs) and carbon dots (CDs) are among the latest research frontiers in carbon-based nanomaterials. They provide interesting attributes to current electrochemical biosensing due to their intrinsic low toxicity, high solubility in many solvents, excellent electronic properties, robust chemical inertness, large specific surface area, abundant edge sites for functionalization, great biocompatibility, low cost, and versatility, as well as their ability for modification with attractive surface chemistries and other modifiers/nanomaterials. In this review article, the use of GQDs and CDs as signal tags or electrode surface modifiers to develop electrochemical biosensing strategies is critically discussed through the consideration of representative approaches reported in the last five years. The advantages and disadvantages arising from the use of GQDs and CDs in this context are outlined together with the still required work to fulfil the characteristics needed to achieve suitable electrochemical enzymatic and affinity biosensors with applications in the real world.

Carbon Dots for Bacterial Detection and Antibacterial Applications-A Minireview

2020 ◽  
Vol 25 (46) ◽  
pp. 4848-4860 ◽  
Author(s):  
Anisha Anand ◽  
Gopinathan Manavalan ◽  
Ranju Prasad Mandal ◽  
Huan-Tsung Chang ◽  
Yi-Ru Chiou ◽  
...  
Keyword(s):  
Optical Properties ◽  
Carbon Dots ◽  
Antibacterial Effect ◽  
Bacterial Detection ◽  
High Brightness ◽  
Photo Catalysis ◽  
Wide Range ◽  
Prevention And Treatment ◽  
Low Toxicity ◽  
Conventional Antibiotics

: The prevention and treatment of various infections caused by microbes through antibiotics are becoming less effective due to antimicrobial resistance. Researches are focused on antimicrobial nanomaterials to inhibit bacterial growth and destroy the cells, to replace conventional antibiotics. Recently, carbon dots (C-Dots) become attractive candidates for a wide range of applications, including the detection and treatment of pathogens. In addition to low toxicity, ease of synthesis and functionalization, and high biocompatibility, C-Dots show excellent optical properties such as multi-emission, high brightness, and photostability. C-Dots have shown great potential in various fields, such as biosensing, nanomedicine, photo-catalysis, and bioimaging. This review focuses on the origin and synthesis of various C-Dots with special emphasis on bacterial detection, the antibacterial effect of CDots, and their mechanism.

Nano Phytomedicine Based Delivery System for CNS Disease

2020 ◽  
Vol 21 (9) ◽  
pp. 661-673 ◽  
Author(s):  
Mohammed Asadullah Jahangir ◽  
Chettupalli Anand ◽  
Abdul Muheem ◽  
Sadaf Jamal Gilani ◽  
Mohamad Taleuzzaman ◽  
...  
Keyword(s):  
Herbal Medicine ◽  
Low Cost ◽  
Herbal Medicines ◽  
Herbal Drugs ◽  
Widespread Acceptance ◽  
The Central Nervous System ◽  
Low Toxicity ◽  
Ancient Times ◽  
Plant Sources ◽  
Herbal Formulations

Herbal medicines are being used since ancient times and are an important part of the alternative and traditional medicinal system. In recent decades, scientists are embracing herbal medicines based on the fact that a number of drugs that are currently in use are derived directly or indirectly from plant sources. Moreover, herbal drugs have lesser side effects, albeit are potentially strong therapeutic agents. The herbal medicine market is estimated to be around US $62 billion globally. Herbal medicine has gained widespread acceptance due to its low toxicity, low cost, ease of accessibility and efficacy in treating difficult diseases. Safety and efficacy are another important factors in the commercialization process of herbal medicines. Nanotechnology has been shown to be potentially effective in improving the bioactivity and bioavailability of herbal medicines. Development of nano-phytomedicines (or by reducing the size of phytomedicine), attaching polymers with phytomedicines and modifying the surface properties of herbal drugs, have increased the solubility, permeability and eventually the bioavailability of herbal formulations. Novel formulations such as niosomes, liposomes, nanospheres, phytosomes etc., can be exploited in this area. This article reviews herbal medicines, which have prominent activity in the Central Nervous System (CNS) disorders and reported nano-phytomedicines based delivery systems.

scholarly journals A simple approach to prepare fluorescent molecularly imprinted nanoparticles

RSC Advances ◽  
2021 ◽  
Vol 11 (13) ◽  
pp. 7732-7737
Author(s):  
Fenying Wang ◽  
Dan Wang ◽  
Tingting Wang ◽  
Yu Jin ◽  
Baoping Ling ◽  
...  
Keyword(s):  
High Performance ◽  
Low Cost ◽  
Sol Gel ◽  
Silica Sol ◽  
Simple Approach ◽  
Imprinted Polymer ◽  
Molecularly Imprinted ◽  
Low Toxicity ◽  
Good Biocompatibility ◽  
Molecularly Imprinted Nanoparticles

Fluorescent molecularly imprinted polymer (FMIP) gains great attention in many fields due to their low cost, good biocompatibility and low toxicity. Here, a high-performance FMIP was prepared based on the autocatalytic silica sol–gel reaction.

scholarly journals A monodispersed CuPt alloy: synthesis and its superior catalytic performance in the hydrogen evolution reaction over a full pH range

RSC Advances ◽  
2021 ◽  
Vol 11 (21) ◽  
pp. 12470-12475
Author(s):  
Xinmei Liu ◽  
Chen Liang ◽  
Wenlong Yang ◽  
Chunyang Yang ◽  
Jiaqi Lin ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
High Stability ◽  
Low Cost ◽  
Catalytic Performance ◽  
Ph Range

An effective approach to achieve the low cost and high stability of electro-catalysts for HER.

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