scholarly journals ‘Aggregation-Induced Emission’ Active Mono-Cyclometalated Iridium(III) Complex Mediated Efficient Vapor-Phase Detection of Dichloromethane

Molecules ◽  
2021 ◽  
Vol 27 (1) ◽  
pp. 202
Author(s):  
Pramod C. Raichure ◽  
Vishal Kachwal ◽  
Inamur Rahaman Laskar
Keyword(s):  
Detection Limit ◽  
Organic Solvent ◽  
Vapor Phase ◽  
Filter Paper ◽  
Low Cost ◽  
Phase Detection ◽  
Weakly Bound ◽  
Aggregation Induced Emission ◽  
Turn On ◽  
Volatile Organic

Selective vapor-phase detection of dichloromethane (DCM) is a challenge, it being a well-known hazardous volatile organic solvent in trace amounts. With this in mind, we have developed an ‘Aggregation-induced Emission’ (AIE) active mono-cyclometalated iridium(III)-based (M1) probe molecule, which detects DCM sensitively and selectively in vapor phase with a response time < 30 s. It reveals a turn-on emission (non-emissive to intense yellow) on exposing DCM vapor directly to the solid M1. The recorded detection limit is 4.9 ppm for DCM vapor with pristine M1. The mechanism of DCM detection was explored. Moreover, the detection of DCM vapor by M1 was extended with a low-cost filter paper as the substrate. The DCM is weakly bound with the probe and can be removed with a mild treatment, so, notably, the probe can be reused.

An aggregation-induced emission based “turn-on” fluorescent chemodosimeter for the selective detection of Pb2+ ions

RSC Advances ◽  
2014 ◽  
Vol 4 (87) ◽  
pp. 47076-47080 ◽  
Author(s):  
Dipratn G. Khandare ◽  
Hrishikesh Joshi ◽  
Mainak Banerjee ◽  
Mahesh S. Majik ◽  
Amrita Chatterjee
Keyword(s):  
Detection Limit ◽  
Selective Detection ◽  
Aggregation Induced Emission ◽  
Turn On ◽  
Low Detection Limit ◽  
Fluorescent Chemodosimeter ◽  
Low Solubility

An aggregation-induced emission (AIE) based “turn-on” fluorescent chemodosimeter for selective detection of Pb2+ ions has been developed. The probe is a phosphate functionalized tetraphenylethylene derivative and the resulting lead–TPE complex has very low solubility in working solvent and triggers AIE and shows a low detection limit of 10 ppb.

Aggregation induced emission enhancement (AIEE) of tripodal pyrazole derivatives for sensing of nitroaromatics and vapor phase detection of picric acid

2019 ◽  
Vol 43 (19) ◽  
pp. 7251-7258 ◽  
Author(s):  
Shambhu Kandel ◽  
Veerasamy Sathish ◽  
Logesh Mathivathanan ◽  
Alexander N. Morozov ◽  
Alexander M. Mebel ◽  
...  
Keyword(s):  
Vapor Phase ◽  
Picric Acid ◽  
Solvent Mixtures ◽  
Pyrazole Derivatives ◽  
Phase Detection ◽  
Aggregation Induced Emission ◽  
Aqueous Solvent Mixtures ◽  
Emission Enhancement ◽  
Aqueous Solvent

Organosoluble tris-pyrazole compounds aggregate in organic/aqueous solvent mixtures, showing aggregation-induced emission enhancement (AIEE), the latter being quenched by picric acid.

Polydiacetylene paper-based colorimetric sensor array for vapor phase detection and identification of volatile organic compounds

2012 ◽  
Vol 22 (13) ◽  
pp. 5970 ◽  
Author(s):  
Thichamporn Eaidkong ◽  
Radeemada Mungkarndee ◽  
Chaiwat Phollookin ◽  
Gamonwarn Tumcharern ◽  
Mongkol Sukwattanasinitt ◽  
...  
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Vapor Phase ◽  
Sensor Array ◽  
Colorimetric Sensor ◽  
Phase Detection ◽  
Colorimetric Sensor Array ◽  
Detection And Identification ◽  
Volatile Organic

A simple method to construct a low-cost immunosensor based on a dithiol-functionalized polydopamine platform

2021 ◽  
Author(s):  
Bo Liu ◽  
Luanying Yang ◽  
Gang Wang ◽  
Sha He ◽  
Xiaobo Wang ◽  
...  
Keyword(s):  
Detection Limit ◽  
Linear Response ◽  
Low Cost ◽  
Covalent Immobilization ◽  
The Self ◽  
Simple Method ◽  
Low Detection Limit

A simple and low-cost electrochemical CEA immunosensor was investigated via the self-polymerization of dopamine and a dithiol compound spacer for the covalent immobilization of antibodies. The designed CEA immunosensor exhibited a linear response and a low detection limit.

scholarly journals Robust immobilization of anionic silver nanoparticles on cellulose filter paper toward a low-cost point-of-use water disinfection system with improved anti-biofouling properties

RSC Advances ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 4873-4882
Author(s):  
Gongyan Liu ◽  
Ruiquan Yu ◽  
Jing Jiang ◽  
Zhuang Ding ◽  
Jing Ma ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Filter Paper ◽  
Low Cost ◽  
Water Disinfection ◽  
Point Of Use ◽  
Cellulose Filter

Point-of-use water disinfection by GA@AgNPs-LA-FP.

11H-Pyrido[2,1-b]quinazolin-11-one - A reversible Turn-on/off Fluorescent Probe for Solution and Gas-phase Detection of Acids or Basic Amines

2021 ◽  
pp. 109536
Author(s):  
João Victor L. Silva Néto ◽  
Rodolfo I. Teixeira ◽  
Ramon B. da Silva ◽  
Nanci C. de Lucas ◽  
Simon J. Garden
Keyword(s):  
Gas Phase ◽  
Fluorescent Probe ◽  
Phase Detection ◽  
Turn On

A Novel AIE Molecule as Hole Transport Layer Enables Efficient and Stable Perovskite Solar Cells

2021 ◽  
Author(s):  
Lie Chen ◽  
Bin Huang ◽  
Yujun Cheng ◽  
Hui Lei ◽  
Lin Hu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Low Cost ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Aggregation Induced Emission

A low-cost and efficient hole transport layer (HTL) material (TPE-CZ) with aggregation-induced emission (AIE) effect has been synthesized. Due to the AIE effect, perovskite solar cells with TPE-CZ as HTL...

scholarly journals Water-Enhanced Flux Changes under Dynamic Temperatures in the Vertical Vapor-Phase Diffusive Transport of Volatile Organic Compounds in Near-Surface Soil Environments

2021 ◽  
Vol 13 (12) ◽  
pp. 6570
Author(s):  
Asma Akter Parlin ◽  
Monami Kondo ◽  
Noriaki Watanabe ◽  
Kengo Nakamura ◽  
Mizuki Yamada ◽  
...  
Keyword(s):  
Air Quality ◽  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Vapor Phase ◽  
Inverse Correlation ◽  
Diffusive Transport ◽  
Near Surface ◽  
Voc Emissions ◽  
Transport Behavior ◽  
Volatile Organic

The quantitative understanding of the transport behavior of volatile organic compounds (VOCs) in near-surface soils is highly important in light of the potential impacts of soil VOC emissions on the air quality and climate. Previous studies have suggested that temperature changes affect the transport behavior; however, the effects are not well understood. Indeed, much larger changes in the VOC flux under in situ dynamic temperatures than those expected from the temperature dependence of the diffusion coefficients of VOCs in the air have been suggested but rarely investigated experimentally. Here, we present the results of a set of experiments on the upward vertical vapor-phase diffusive transport of benzene and trichloroethylene (TCE) in sandy soils with water contents ranging from an air-dried value to 10 wt% during sinusoidal temperature variation between 20 and 30 °C. In all experiments, the flux from the soil surface was correlated with the temperature, as expected. However, the changes in flux under wet conditions were unexpectedly large and increased with increasing water content; they were also larger for TCE, the volatility of which depended more strongly on the temperature. Additionally, the larger flux changes were accompanied by a recently discovered water-induced inverse correlation between temperature and flux into the overlying soil. These results demonstrated that the flux changes of VOCs under dynamic temperatures could be increased by volatilization-dissolution interactions of VOCs with water. Future extensive studies on this newly discovered phenomenon would contribute to a better understanding of the impacts of soil VOC emissions on the air quality and climate.

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