Dihydroquinazolinone based "turn-off" fluorescence sensor for detection of Cu super(2+) ions
A strategy for the synthesis of a dihydroquinazolinone derivative, 2-(pyridine-2-yl)-2,3-dihydroquinazolin-4(1H)-one and its application in selective recognition of Cu super(2+) ions has been developed. The sensor shows "turn-off" type paramagnetic fluorescence quenching towards Cu super(2...
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| Veröffentlicht in: | Dyes and pigments 2016-11, Vol.134, p.276-284 |
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| creator | Borase, Pravin N Thale, Pranila B Shankarling, Ganapati S |
| description | A strategy for the synthesis of a dihydroquinazolinone derivative, 2-(pyridine-2-yl)-2,3-dihydroquinazolin-4(1H)-one and its application in selective recognition of Cu super(2+) ions has been developed. The sensor shows "turn-off" type paramagnetic fluorescence quenching towards Cu super(2+) ions. The binding constant (K sub(a)) of Cu super(2+) ions with the sensor was found to be 8.02 10 super(4) M super(-1) and binding stoichiometry was determined to be 1:1 based on the Job's plot analysis. The sensor can detect up to nanomolar (0.1 nM) level of Cu super(2+) ions from tap water. The single crystal of the QZP.Cu super(2+)Cl.H sub(2)O complex was characterized using X-ray diffraction and the paramagnetic nature of Cu super(2+) was manifested by electron spin resonance (ESR) spectroscopy. |
| doi_str_mv | 10.1016/j.dyepig.2016.07.025 |
| format | Article |
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The sensor shows "turn-off" type paramagnetic fluorescence quenching towards Cu super(2+) ions. The binding constant (K sub(a)) of Cu super(2+) ions with the sensor was found to be 8.02 10 super(4) M super(-1) and binding stoichiometry was determined to be 1:1 based on the Job's plot analysis. The sensor can detect up to nanomolar (0.1 nM) level of Cu super(2+) ions from tap water. 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The single crystal of the QZP.Cu super(2+)Cl.H sub(2)O complex was characterized using X-ray diffraction and the paramagnetic nature of Cu super(2+) was manifested by electron spin resonance (ESR) spectroscopy.</description><subject>Binding</subject><subject>Copper</subject><subject>Derivatives</subject><subject>Electron paramagnetic resonance</subject><subject>Fluorescence</subject><subject>Nanostructure</subject><subject>Sensors</subject><subject>Synthesis (chemistry)</subject><issn>0143-7208</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><recordid>eNqVTstOwzAQ9AEkCvQPOKx6Kqrirh3S5t6H-gEckaqQrMGV8QZvfChf31TiB3oYjWY0mhmlXgxqg2a1POnuTL3_0nZUGtcabXWnJmjeymJtsX5QjyInRKxLaybqY-u_z13i3-xj88fBR44En41QB7Mhp1iwczNwIXMiaSm2BEJROIEb0dFA7eA5AjvYZJDcU5rbxSuMnjyre9cEoek_P6n5fve-ORT9dZBkOP74sTOEJhJnOZq6qsrV9WV5Q_QCoblNkQ</recordid><startdate>20161101</startdate><enddate>20161101</enddate><creator>Borase, Pravin N</creator><creator>Thale, Pranila B</creator><creator>Shankarling, Ganapati S</creator><scope>7QQ</scope><scope>7SR</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20161101</creationdate><title>Dihydroquinazolinone based "turn-off" fluorescence sensor for detection of Cu super(2+) ions</title><author>Borase, Pravin N ; Thale, Pranila B ; Shankarling, Ganapati S</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-proquest_miscellaneous_18553672083</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Binding</topic><topic>Copper</topic><topic>Derivatives</topic><topic>Electron paramagnetic resonance</topic><topic>Fluorescence</topic><topic>Nanostructure</topic><topic>Sensors</topic><topic>Synthesis (chemistry)</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Borase, Pravin N</creatorcontrib><creatorcontrib>Thale, Pranila B</creatorcontrib><creatorcontrib>Shankarling, Ganapati S</creatorcontrib><collection>Ceramic Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Dyes and pigments</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Borase, Pravin N</au><au>Thale, Pranila B</au><au>Shankarling, Ganapati S</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Dihydroquinazolinone based "turn-off" fluorescence sensor for detection of Cu super(2+) ions</atitle><jtitle>Dyes and pigments</jtitle><date>2016-11-01</date><risdate>2016</risdate><volume>134</volume><spage>276</spage><epage>284</epage><pages>276-284</pages><issn>0143-7208</issn><abstract>A strategy for the synthesis of a dihydroquinazolinone derivative, 2-(pyridine-2-yl)-2,3-dihydroquinazolin-4(1H)-one and its application in selective recognition of Cu super(2+) ions has been developed. The sensor shows "turn-off" type paramagnetic fluorescence quenching towards Cu super(2+) ions. The binding constant (K sub(a)) of Cu super(2+) ions with the sensor was found to be 8.02 10 super(4) M super(-1) and binding stoichiometry was determined to be 1:1 based on the Job's plot analysis. The sensor can detect up to nanomolar (0.1 nM) level of Cu super(2+) ions from tap water. The single crystal of the QZP.Cu super(2+)Cl.H sub(2)O complex was characterized using X-ray diffraction and the paramagnetic nature of Cu super(2+) was manifested by electron spin resonance (ESR) spectroscopy.</abstract><doi>10.1016/j.dyepig.2016.07.025</doi></addata></record> |
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| subjects | Binding Copper Derivatives Electron paramagnetic resonance Fluorescence Nanostructure Sensors Synthesis (chemistry) |
| title | Dihydroquinazolinone based "turn-off" fluorescence sensor for detection of Cu super(2+) ions |
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