Imaging endogenous HClO in atherosclerosis using a novel fast-response fluorescence probe

2020 ◽  
Vol 56 (17) ◽  
pp. 2598-2601 ◽  
Author(s):  
Beibei Wang ◽  
Feng Zhang ◽  
Shukun Wang ◽  
Ruijin Yang ◽  
Chonghao Chen ◽  
...  
Keyword(s):  
Fluorescence Probe ◽  
Fast Response ◽  
Arterial Vessel

A novel probe S-ClO was developed, which could selectively sense HClO as well as monitor HClO-induced arterial vessel inflammation.

scholarly journals A fast response fluorescence probe specific for hypochlorous acid detection and its applications in bioimaging

2018 ◽  
Vol 16 (12) ◽  
pp. 2074-2082 ◽  
Author(s):  
Hongmin Jia ◽  
Shuhe Xia ◽  
Huan Feng ◽  
Qingtao Meng ◽  
Chengchen Duan ◽  
...  
Keyword(s):  
Hypochlorous Acid ◽  
Fluorescence Probe ◽  
High Sensitivity ◽  
Fast Response ◽  
Rapid Response

The features ofDNPH-NA, including its high sensitivity, selectivity, and reliability at physiological pH, together with a rapid response, enable its successful application in the detection of endogenous HOClin vitroandin vivo.

scholarly journals A highly specific and sensitive turn-on fluorescence probe for hypochlorite detection and its bioimaging applications

RSC Advances ◽  
2019 ◽  
Vol 9 (28) ◽  
pp. 15926-15932
Author(s):  
Lei Jin ◽  
Xiaoxue Tan ◽  
Lihui Dai ◽  
Liqiang Sheng ◽  
Qingming Wang
Keyword(s):  
Response Time ◽  
Fluorescence Probe ◽  
Fast Response ◽  
Living Cells ◽  
Sensitive Detection ◽  
Fast Response Time ◽  
Turn On

A new probe, EDPC, was designed and synthesized for highly specific and sensitive detection of ClO− with a fast response time in living cells.

A turn-on fluorescence probe based on post-modified metal–organic frameworks for highly selective and fast-response hypochlorite detection

Polyhedron ◽  
2018 ◽  
Vol 148 ◽  
pp. 76-80 ◽  
Author(s):  
Yanping Li ◽  
Ke Jiang ◽  
Jun Zhang ◽  
Tifeng Xia ◽  
Yuanjing Cui ◽  
...  
Keyword(s):  
Fluorescence Probe ◽  
Metal Organic Frameworks ◽  
Fast Response ◽  
Turn On ◽  
Metal Organic

A mitochondria-targetable fluorescent probe for peroxynitrite: fast response and high selectivity

2015 ◽  
Vol 51 (13) ◽  
pp. 2721-2724 ◽  
Author(s):  
Hongxing Zhang ◽  
Jing Liu ◽  
Yuan-Qiang Sun ◽  
Yingying Huo ◽  
Yaohua Li ◽  
...  
Keyword(s):  
Fluorescent Probe ◽  
High Selectivity ◽  
Fluorescence Probe ◽  
Fast Response

A mitochondria-targetable fluorescence probe, methyl(4-hydroxyphenyl)amino-substituted pyronin (1), was exploited, which could highly selectively sense peroxynitrite (ONOO−) within seconds.

Nanostructure of semiconductor quantum dots in a borosilicate glass matrix by complementary use of HREM and AEM

1990 ◽  
Vol 48 (4) ◽  
pp. 728-729
Author(s):  
M.J. Kim ◽  
L.C. Liu ◽  
S.H. Risbud ◽  
R.W. Carpenter
Keyword(s):  
Quantum Dots ◽  
Borosilicate Glass ◽  
Glass Matrix ◽  
Optical Switching ◽  
Response Times ◽  
Fast Response ◽  
Processing Technique ◽  
Internal Stresses ◽  
Electron Hole ◽  
Spatial Dimensions

When the size of a semiconductor is reduced by an appropriate materials processing technique to a dimension less than about twice the radius of an exciton in the bulk crystal, the band like structure of the semiconductor gives way to discrete molecular orbital electronic states. Clusters of semiconductors in a size regime lower than 2R {where R is the exciton Bohr radius; e.g. 3 nm for CdS and 7.3 nm for CdTe) are called Quantum Dots (QD) because they confine optically excited electron- hole pairs (excitons) in all three spatial dimensions. Structures based on QD are of great interest because of fast response times and non-linearity in optical switching applications.In this paper we report the first HREM analysis of the size and structure of CdTe and CdS QD formed by precipitation from a modified borosilicate glass matrix. The glass melts were quenched by pouring on brass plates, and then annealed to relieve internal stresses. QD precipitate particles were formed during subsequent "striking" heat treatments above the glass crystallization temperature, which was determined by differential thermal analysis.

Compact and efficient gas diffusion electrodes based on nanoporous alumina membranes for microfuel cells and gas sensors

The Analyst ◽  
2020 ◽  
Vol 145 (1) ◽  
pp. 122-131 ◽  
Author(s):  
Wanda V. Fernandez ◽  
Rocío T. Tosello ◽  
José L. Fernández
Keyword(s):  
Response Times ◽  
Hydrogen Oxidation ◽  
Fast Response ◽  
Gas Diffusion ◽  
Limiting Current ◽  
Gas Diffusion Electrodes ◽  
Nanoporous Alumina ◽  
Alumina Membranes ◽  
Current Densities ◽  
Microfuel Cells

Gas diffusion electrodes based on nanoporous alumina membranes electrocatalyze hydrogen oxidation at high diffusion-limiting current densities with fast response times.

Compositional Tuning of Negative Differential Resistance in Bulk Silver Iodide Memristor

2020 ◽  
Author(s):  
SMITA GAJANAN NAIK ◽  
Mohammad Hussain Kasim Rabinal
Keyword(s):  
Power Consumption ◽  
Negative Differential Resistance ◽  
Silver Iodide ◽  
Differential Resistance ◽  
Fast Response ◽  
Low Power Consumption ◽  
Switching Effect ◽  
Memory Switching ◽  
Bulk Silver ◽  
Emerging Memory

Electrical memory switching effect has received a great interest to develop emerging memory technology such as memristors. The high density, fast response, multi-bit storage and low power consumption are their...

Two-dimensional Metal-Organic Frameworks applied to fast-response luminescent sensing for nitro compounds in solution

2020 ◽  
Author(s):  
Caroline Moraes da Silva ◽  
Guilherme Arroyos ◽  
Regina Célia Galvão Frem
Keyword(s):  
Metal Organic Frameworks ◽  
Fast Response ◽  
Nitro Compounds ◽  
Two Dimensional ◽  
Metal Organic ◽  
Luminescent Sensing

A Three-Dimensional Tetraphenylethylene-Based Fluorescence Covalent Organic Framework for Molecular Recognition

2020 ◽  
Author(s):  
Junxia Ren ◽  
Yaozu Liu ◽  
Xin Zhu ◽  
Yangyang Pan ◽  
Yujie Wang ◽  
...  
Keyword(s):  
Molecular Recognition ◽  
Fluorescence Probe ◽  
Three Dimensional ◽  
Hazardous Substances ◽  
Covalent Organic Framework ◽  
Highly Sensitive ◽  
Volatile Organic ◽  
Polycyclic Aromatic ◽  
Better Than ◽  
Organic Framework

<p><a></a><a></a><a></a><a></a><a></a><a></a><a></a><a>The development of highly-sensitive recognition of </a><a></a><a></a><a></a><a></a><a>hazardous </a>chemicals, such as volatile organic compounds (VOCs) and polycyclic aromatic hydrocarbons (PAHs), is of significant importance because of their widespread social concerns related to environment and human health. Here, we report a three-dimensional (3D) covalent organic framework (COF, termed JUC-555) bearing tetraphenylethylene (TPE) side chains as an aggregation-induced emission (AIE) fluorescence probe for sensitive molecular recognition.<a></a><a> </a>Due to the rotational restriction of TPE rotors in highly interpenetrated framework after inclusion of dimethylformamide (DMF), JUC-555 shows impressive AIE-based strong fluorescence. Meanwhile, owing to the large pore size (11.4 Å) and suitable intermolecular distance of aligned TPE (7.2 Å) in JUC-555, the obtained material demonstrates an excellent performance in the molecular recognition of hazardous chemicals, e.g., nitroaromatic explosives, PAHs, and even thiophene compounds, via a fluorescent quenching mechanism. The quenching constant (<i>K</i><sub>SV</sub>) is two orders of magnitude better than those of other fluorescence-based porous materials reported to date. This research thus opens 3D functionalized COFs as a promising identification tool for environmentally hazardous substances.</p>

Direct Current Deadbeat Predictive Controller for BLDC Motor Using Single DC-Link Current Sensor

2020 ◽  
Vol 38 (8A) ◽  
pp. 1187-1199
Author(s):  
Qaed M. Ali ◽  
Mohammed M. Ezzalden
Keyword(s):  
Control System ◽  
High Speed ◽  
Fast Response ◽  
Bldc Motor ◽  
Current Controller ◽  
Three Phase ◽  
Predictive Controller ◽  
Two Phases ◽  
Dc Current ◽  
Three Phase Inverter

BLDC motors are characterized by electronic commutation, which is performed by using an electric three-phase inverter. The direct control system of the BLDC motor consists of double loops; including the inner-loop for current regulating and outer-loop for speed control. The operation of the current controller requires feedback of motor currents; the conventional current controller uses two current sensors on the ac side of the inverter to measure the currents of two phases, while the third current would be accordingly calculated. These two sensors should have the same characteristics, to achieve balanced current measurements. It should be noted that the sensitivity of these sensors changes with time. In the case of one sensor fails, both of them must be replaced. To overcome this problem, it is preferable to use one sensor instead of two. The proposed control system is based on a deadbeat predictive controller, which is used to regulate the DC current of the BLDC motor. Such a controller can be considered as digital controller mode, which has fast response, high precision and can be easily implemented with microprocessor. The proposed control system has been simulated using Matlab software, and the system is tested at a different operating condition such as low speed and high speed.

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