Ultra-selective detection of sub-ppm-level benzene using Pd–SnO2 yolk–shell micro-reactors with a catalytic Co3O4 overlayer for monitoring air quality

2017 ◽  
Vol 5 (4) ◽  
pp. 1446-1454 ◽  
Author(s):  
Seong-Yong Jeong ◽  
Ji-Wook Yoon ◽  
Tae-Hyung Kim ◽  
Hyun-Mook Jeong ◽  
Chul-Soon Lee ◽  
...  
Keyword(s):  
Air Quality ◽  
Sensitive Detection ◽  
Selective Detection ◽  
Micro Reactors ◽  
Ppm Level ◽  
Micro Reactor

Ultra-selective and sensitive detection of benzene was achieved using Pd-loaded SnO2 yolk–shell micro-reactor sensing films coated with a catalytic Co3O4 overlayer.

An enzyme free electrochemical biosensor for sensitive detection of miRNA with a high discrimination factor by coupling the strand displacement reaction and catalytic hairpin assembly recycling

The Analyst ◽  
2017 ◽  
Vol 142 (21) ◽  
pp. 4116-4123 ◽  
Author(s):  
Juan Yao ◽  
Zhang Zhang ◽  
Zhenghua Deng ◽  
Youqiang Wang ◽  
Yongcan Guo
Keyword(s):  
Electrochemical Biosensor ◽  
Sensitive Detection ◽  
Selective Detection ◽  
Discrimination Factor ◽  
Displacement Reaction ◽  
Strand Displacement ◽  
High Discrimination ◽  
Catalytic Hairpin Assembly ◽  
Strand Displacement Reaction

Sensitive and selective detection of miRNA based on the toehold-mediated strand displacement reaction (SDR) and non-enzymatic catalytic hairpin reaction (CHA) recycling.

Two luminescent lanthanide–organic frameworks containing bithiophene groups for the selective detection of nitrobenzene and Fe3+

CrystEngComm ◽  
2018 ◽  
Vol 20 (25) ◽  
pp. 3609-3619 ◽  
Author(s):  
Ai-Na Dou ◽  
Li-Bo Yang ◽  
Xiao-Dan Fang ◽  
Qi Yin ◽  
Mao-Dong Li ◽  
...  
Keyword(s):  
Fluorescence Quenching ◽  
Fluorescent Probes ◽  
Fast Response ◽  
Sensitive Detection ◽  
Selective Detection

Two isostructural lanthanide–organic frameworks containing bithiophene groups can be used as fast-response fluorescent probes for the sensitive detection of nitrobenzene and Fe3+ ions through fluorescence quenching.

Hollow spheres of CoCr2O4–Cr2O3 mixed oxides with nanoscale heterojunctions for exclusive detection of indoor xylene

2018 ◽  
Vol 6 (40) ◽  
pp. 10767-10774 ◽  
Author(s):  
Bo-Young Kim ◽  
Ji-Won Yoon ◽  
Kyeorei Lim ◽  
Sung Hyun Park ◽  
Ji-Wook Yoon ◽  
...  
Keyword(s):  
Air Quality ◽  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
High Performance ◽  
Catalytic Effect ◽  
Mixed Oxides ◽  
Hollow Spheres ◽  
Volatile Organic ◽  
Ppm Level

Ultrahigh selectivity and response to sub-ppm-level of p-xylene was achieved using CoCr2O4–Cr2O3 spheres. The unique catalytic effect and nanoscale heterojunction of CoCr2O4 and Cr2O3 provide a strategy to design high performance volatile organic compounds sensors for monitoring air quality.

scholarly journals Terbium-Tetracarboxylate Framework as a Luminescent Probe for the Selective Detection of Nitrofurazone

Crystals ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 222
Author(s):  
Qipeng Li ◽  
Yanqiong Shen ◽  
Junsong Zhao ◽  
Zejun Zhang ◽  
Jinjie Qian
Keyword(s):  
Hydrogen Bond ◽  
Layered Structure ◽  
Sensitive Detection ◽  
Fluorescence Properties ◽  
Selective Detection ◽  
Supramolecular Framework ◽  
Luminescent Probe ◽  
Hydrogen Bond Interactions ◽  
Secondary Building Units

A novel terbium-tetracarboxylate framework with the 5,5’-(diazene-1,2-iyl)diisophthalic acid (H4abtc) ligand, formulated as [Tb(Habtc)(DMSO)(H2O)2]n (ZTU-5), has been synthesized and structurally characterized. ZTU-5 features a 2D-layered structure constructed by the binuclear terbium secondary building units (SBUs) and abtc4– ligand, which can be further expanded into a 3D-supramolecular framework by the hydrogen bond interactions. In addition, the magnetic and fluorescence properties of ZTU-5 are investigated and ZTU-5 exhibits highly selective and sensitive detection of nitrofurazone (NZF).

A “turn-on” fluorescent and colorimetric chemodosimeter for selective detection of Au3+ ions in solution and in live cells via Au3+-induced hydrolysis of a rhodamine-derived Schiff base

2020 ◽  
Vol 44 (19) ◽  
pp. 7954-7961
Author(s):  
Sanchita Mondal ◽  
Saikat Kumar Manna ◽  
Sudipta Pathak ◽  
Aritri Ghosh ◽  
Pallab Datta ◽  
...  
Keyword(s):  
Schiff Base ◽  
Rhodamine B ◽  
Aqueous Media ◽  
Sensitive Detection ◽  
Live Cells ◽  
Selective Detection ◽  
Turn On ◽  
Hydrolysis Of

A chromogenic and “off–on” fluorogenic chemodosimeter (L) based on a naphthalene–rhodamine B derivative was designed, synthesized and characterized for the selective and sensitive detection of Au3+ ions in mixed acetonitrile aqueous media.

A rapid-response fluorescent probe for the sensitive and selective detection of human albumin in plasma and cell culture supernatants

2016 ◽  
Vol 52 (36) ◽  
pp. 6064-6067 ◽  
Author(s):  
Yi-Ru Wang ◽  
Lei Feng ◽  
Liang Xu ◽  
Yan Li ◽  
Dan-Dan Wang ◽  
...  
Keyword(s):  
Cell Culture ◽  
Binding Site ◽  
Fluorescent Probe ◽  
Human Albumin ◽  
Drug Binding ◽  
Rapid Response ◽  
Sensitive Detection ◽  
Selective Detection ◽  
Drug Binding Site ◽  
Culture Supernatants

A rapid-response fluorescent probeACDMwas developed for selective and sensitive detection of human albumin (HA)viabinding on a non-drug binding site.

MoS2 nanohybrid as a fluorescence sensor for highly selective detection of dopamine

The Analyst ◽  
2018 ◽  
Vol 143 (7) ◽  
pp. 1691-1698 ◽  
Author(s):  
Neema Pallikkarathodi Mani ◽  
Manjunatha Ganiga ◽  
Jobin Cyriac
Keyword(s):  
Fluorescence Sensor ◽  
Sensitive Detection ◽  
Selective Detection

A simple and facile strategy is developed for the selective and sensitive detection of dopamine, using luminescent MoS2 nanohybrid particles.

NIR upconversion characteristics of carbon dots for selective detection of glutathione

2018 ◽  
Vol 42 (8) ◽  
pp. 6399-6407 ◽  
Author(s):  
Satyabrat Gogoi ◽  
Raju Khan
Keyword(s):  
Carbon Dots ◽  
Carbon Nanoparticles ◽  
Near Infrared ◽  
Fluorescence Probe ◽  
Sensitive Detection ◽  
Selective Detection

In the current study, we report the near infrared (NIR) upconversion (in the range of 850–950 nm) properties of carbon nanoparticles and their utility as a fluorescence probe for selective and sensitive detection of glutathione (GSH).

scholarly journals Highly selective detection of methanol over ethanol by a handheld gas sensor

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
J. van den Broek ◽  
S. Abegg ◽  
S. E. Pratsinis ◽  
A. T. Güntner
Keyword(s):  
Gas Chromatography ◽  
Air Quality ◽  
Organ Failure ◽  
Gas Sensor ◽  
Chemical Sensors ◽  
Breath Analysis ◽  
Quality Monitoring ◽  
Selective Detection ◽  
Air Quality Monitoring ◽  
Proof Of Concept

Abstract Methanol poisoning causes blindness, organ failure or even death when recognized too late. Currently, there is no methanol detector for quick diagnosis by breath analysis or for screening of laced beverages. Typically, chemical sensors cannot distinguish methanol from the much higher ethanol background. Here, we present an inexpensive and handheld sensor for highly selective methanol detection. It consists of a separation column (Tenax) separating methanol from interferants like ethanol, acetone or hydrogen, as in gas chromatography, and a chemoresistive gas sensor (Pd-doped SnO2 nanoparticles) to quantify the methanol concentration. This way, methanol is measured within 2 min from 1 to 1000 ppm without interference of much higher ethanol levels (up to 62,000 ppm). As a proof-of-concept, we reliably measure methanol concentrations in spiked breath samples and liquor. This could enable the realization of highly selective sensors in emerging applications such as breath analysis or air quality monitoring.

Dual platform based sandwich assay surface-enhanced Raman scattering DNA biosensor for the sensitive detection of food adulteration

The Analyst ◽  
2020 ◽  
Vol 145 (4) ◽  
pp. 1414-1426
Author(s):  
Ibrahim Khalil ◽  
Wageeh A. Yehye ◽  
Nurhidayatullaili Muhd Julkapli ◽  
Abu Ali Ibn Sina ◽  
Shahrooz Rahmati ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Short Length ◽  
Dna Biosensor ◽  
Sensitive Detection ◽  
Selective Detection ◽  
Sandwich Assay ◽  
Food Adulteration ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

Raman tag intercalated short-length DNA and dual nanoplatform based SERS DNA biosensor for the ultrasensitive and selective detection of DNA.

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