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Positively Charged Organosilanes Covalently Linked to the Silica Network as Modulating Tools for the Salinity Correction of pH Values Obtained with Colorimetric Sensor Arrays (CSAs). [PDF]
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Solid-phase colorimetric sensor for hypochlorite
The Analyst, 2021By taking advantage of the powerful oxidation property of hypochlorite (OCl−), we developed a solid-phase colorimetric sensor for the detection of OCl− based on 13 nm AuNPs immobilized on a 3-aminopropyltriethoxysilane APTES-coated substrate.
Lee Wonjung +3 more
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Colorimetric Polymethacrylate Sensor
Advanced Materials Research, 2014The paper describes a new colorimetric sensor. The colorimetric sensors were made of optically transparent polymethacrylate matrix with physically immobilized analytical reagent which is responsible for the extraction of the analyte into the sensing material and changing its color.
Nataliya A. Gavrilenko +4 more
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Visible Colorimetric Fluoride Ion Sensors
Organic Letters, 2005[structure: see text] Five new urea derivative naphthalene compounds were synthesized by a reaction of 1,8-diaminonaphthalene and the corresponding isocyanates and showed a distinct color change only when treated with fluoride ions.
Eun Jin, Cho +3 more
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Colorimetric metal ion sensors
Tetrahedron, 2011Colorimetric sensors allow on site, real time qualitative, and semi-quantitative detection without complicated analytical instruments. Various aspects, such as different color changes, metal induced absorptions shifts, are reviewed.
Navneet Kaur, Subodh Kumar
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Fabrication of a Colorimetric Electrochemiluminescence Sensor
Analytical Chemistry, 2008A colorimetric electrochemiluminescence (ECL) sensor was fabricated for the first time, based on a dual-color system including a strong red Ru(bpy)(3)(2+) ECL and a green reference light from a light emitting diode. Traditional ECL intensity information can be easily transformed into a color variation with this sensor, and the color variation can be ...
Lin, Zhi-jie +6 more
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Novel colorimetric sensor for oral malodour
Analytica Chimica Acta, 2010Volatile sulphur compounds are the primary constituents of oral malodour. Quantitative tools for the detection of oral malodour are beneficial to evaluate the intensity of malodour, analyse its causes and monitor the effectiveness of customized treatments.
Nethaji, Alagirisamy +2 more
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Nanomolar colorimetric hypochlorite sensor in water
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2019Hypochlorous acid is present in several biological systems and plays a pivotal role in bioprocesses. The acid also finds application in industrial and synthetic spheres. The ecological toxicity of elevated hypochlorite concentrations in aqueous media has been thoroughly documented.
Sanay, Naha +2 more
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Colorimetric Sensors Measurement
2015Despite some successes with electronic nose systems as described in Chap. 4, the limited range of sensor analyte interactions limits both their sensitivity for detection of compounds at low concentrations relative to their vapor pressures and their selectivity for discrimination between compounds; the latter proves especially problematic in ...
Xiaobo Zou, Jiewen Zhao
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Colorimetric Sensor Technology in Food
2021To objectively evaluate the odor quality, researchers have focused on finding a new way to design an odor sensor with the same performance as the human nose. This CSA array (CSA) technology mimics the mammalian olfactory system by digital imaging to quantify odorant.
Quansheng Chen, Hao Lin, Jiewen Zhao
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