A disposable sensor based on one-pot synthesized tungsten oxide nanostructure-modified screen printed electrodes for selective detection of dopamine and uric acid
Here, screen-printed carbon electrodes (SPCEs) were modified with ultrafine and mainly mono-disperse sea urchin-like tungsten oxide (SUWO 3 ) nanostructures synthesized by a simple one-pot hydrothermal method for non-enzymatic detection of dopamine (DA) and uric acid (UA) in synthetic urine. Sea urc...
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| Veröffentlicht in: | Analytical sciences 2024-02, Vol.40 (2), p.301-308 |
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| creator | Oğuz, Merve Aykaç, Ahmet Şen, Mustafa |
| description | Here, screen-printed carbon electrodes (SPCEs) were modified with ultrafine and mainly mono-disperse sea urchin-like tungsten oxide (SUWO
3
) nanostructures synthesized by a simple one-pot hydrothermal method for non-enzymatic detection of dopamine (DA) and uric acid (UA) in synthetic urine. Sea urchin-like nanostructures were clearly observed in scanning electron microscope images and WO
3
composition was confirmed with XRD, Raman, FTIR and UV–Vis spectrophotometer. Modification of SPCEs with SUWO
3
nanostructures via the drop-casting method clearly reduced the
R
ct
value of the electrodes, lowered the ∆Ep and enhanced the DA oxidation current due to high electrocatalytic activity. As a result, SUWO
3
/SPCEs enabled highly sensitive non-enzymatic detection of DA (LOD: 51.4 nM and sensitivity: 127 µA mM
−1
cm
−2
) and UA (LOD: 253 nM and sensitivity: 55.9 µA mM
−1
cm
−2
) at low concentration. Lastly, SUWO
3
/SPCEs were tested with synthetic urine, in which acceptable recoveries for both molecules (94.02–105.8%) were obtained. Given the high selectivity, the sensor has the potential to be used for highly sensitive simultaneous detection of DA and UA in real biological samples.
Graphical abstract |
| doi_str_mv | 10.1007/s44211-023-00459-6 |
| format | Article |
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3
) nanostructures synthesized by a simple one-pot hydrothermal method for non-enzymatic detection of dopamine (DA) and uric acid (UA) in synthetic urine. Sea urchin-like nanostructures were clearly observed in scanning electron microscope images and WO
3
composition was confirmed with XRD, Raman, FTIR and UV–Vis spectrophotometer. Modification of SPCEs with SUWO
3
nanostructures via the drop-casting method clearly reduced the
R
ct
value of the electrodes, lowered the ∆Ep and enhanced the DA oxidation current due to high electrocatalytic activity. As a result, SUWO
3
/SPCEs enabled highly sensitive non-enzymatic detection of DA (LOD: 51.4 nM and sensitivity: 127 µA mM
−1
cm
−2
) and UA (LOD: 253 nM and sensitivity: 55.9 µA mM
−1
cm
−2
) at low concentration. Lastly, SUWO
3
/SPCEs were tested with synthetic urine, in which acceptable recoveries for both molecules (94.02–105.8%) were obtained. Given the high selectivity, the sensor has the potential to be used for highly sensitive simultaneous detection of DA and UA in real biological samples.
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3
) nanostructures synthesized by a simple one-pot hydrothermal method for non-enzymatic detection of dopamine (DA) and uric acid (UA) in synthetic urine. Sea urchin-like nanostructures were clearly observed in scanning electron microscope images and WO
3
composition was confirmed with XRD, Raman, FTIR and UV–Vis spectrophotometer. Modification of SPCEs with SUWO
3
nanostructures via the drop-casting method clearly reduced the
R
ct
value of the electrodes, lowered the ∆Ep and enhanced the DA oxidation current due to high electrocatalytic activity. As a result, SUWO
3
/SPCEs enabled highly sensitive non-enzymatic detection of DA (LOD: 51.4 nM and sensitivity: 127 µA mM
−1
cm
−2
) and UA (LOD: 253 nM and sensitivity: 55.9 µA mM
−1
cm
−2
) at low concentration. Lastly, SUWO
3
/SPCEs were tested with synthetic urine, in which acceptable recoveries for both molecules (94.02–105.8%) were obtained. Given the high selectivity, the sensor has the potential to be used for highly sensitive simultaneous detection of DA and UA in real biological samples.
Graphical abstract</description><subject>Analytical Chemistry</subject><subject>Ascorbic Acid - chemistry</subject><subject>Carbon - chemistry</subject><subject>Chemistry</subject><subject>Chemistry and Materials Science</subject><subject>Dopamine - chemistry</subject><subject>Electrochemical Techniques - methods</subject><subject>Electrodes</subject><subject>Nanostructures - chemistry</subject><subject>Original Paper</subject><subject>Oxides</subject><subject>Tungsten</subject><subject>Uric Acid</subject><issn>0910-6340</issn><issn>1348-2246</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9kctu1TAQhi0EoqeFF2CBvGRj8DUnWVYVN6kSG1hbjj0prhI7eBxEeRyeFKendIlkaTzjb_7R-CfkleBvBefHd6i1FIJxqRjn2gyse0IOQumeSam7p-TAB8FZpzQ_I-eIt5wL2Uv5nJyp43AU3aAO5M8lDRHXjG6cgSIkzIWODiHQnNoBtuZK8S7V74DxdyvXLd1ghfb4KwagyaWMtWy-bgXYkkOcYqPQF2jMWmKqLYUZfC05ANKpDcD7PP4EGqDut33WRENe3RITUJcC3Ur01PkYXpBnk5sRXj7EC_Ltw_uvV5_Y9ZePn68ur5lXg6gsDDCZoGXvnZZSeTMYp1wfnFTGedMFb8YgJj7x0RvddzD2XLSCGaVxwCd1Qd6cdNeSf2yA1S4RPcyzS5A3tLIfxNEY1XcNlSfUl4xYYLJt0cWVOyu43b2xJ29s88bee2P3ptcP-tu4QHhs-WdGA9QJwP3bbqDY27yV1Hb-n-xf89afKw</recordid><startdate>20240201</startdate><enddate>20240201</enddate><creator>Oğuz, Merve</creator><creator>Aykaç, Ahmet</creator><creator>Şen, Mustafa</creator><general>Springer Nature Singapore</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0002-2421-9184</orcidid></search><sort><creationdate>20240201</creationdate><title>A disposable sensor based on one-pot synthesized tungsten oxide nanostructure-modified screen printed electrodes for selective detection of dopamine and uric acid</title><author>Oğuz, Merve ; Aykaç, Ahmet ; Şen, Mustafa</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c391t-d9ef5d428ca4223c595a3a8da235ac56dc5bd1f0f0bc5486eb801d1f5b25ae0f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><topic>Analytical Chemistry</topic><topic>Ascorbic Acid - chemistry</topic><topic>Carbon - chemistry</topic><topic>Chemistry</topic><topic>Chemistry and Materials Science</topic><topic>Dopamine - chemistry</topic><topic>Electrochemical Techniques - methods</topic><topic>Electrodes</topic><topic>Nanostructures - chemistry</topic><topic>Original Paper</topic><topic>Oxides</topic><topic>Tungsten</topic><topic>Uric Acid</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Oğuz, Merve</creatorcontrib><creatorcontrib>Aykaç, Ahmet</creatorcontrib><creatorcontrib>Şen, Mustafa</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Analytical sciences</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Oğuz, Merve</au><au>Aykaç, Ahmet</au><au>Şen, Mustafa</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A disposable sensor based on one-pot synthesized tungsten oxide nanostructure-modified screen printed electrodes for selective detection of dopamine and uric acid</atitle><jtitle>Analytical sciences</jtitle><stitle>ANAL. SCI</stitle><addtitle>Anal Sci</addtitle><date>2024-02-01</date><risdate>2024</risdate><volume>40</volume><issue>2</issue><spage>301</spage><epage>308</epage><pages>301-308</pages><issn>0910-6340</issn><eissn>1348-2246</eissn><abstract>Here, screen-printed carbon electrodes (SPCEs) were modified with ultrafine and mainly mono-disperse sea urchin-like tungsten oxide (SUWO
3
) nanostructures synthesized by a simple one-pot hydrothermal method for non-enzymatic detection of dopamine (DA) and uric acid (UA) in synthetic urine. Sea urchin-like nanostructures were clearly observed in scanning electron microscope images and WO
3
composition was confirmed with XRD, Raman, FTIR and UV–Vis spectrophotometer. Modification of SPCEs with SUWO
3
nanostructures via the drop-casting method clearly reduced the
R
ct
value of the electrodes, lowered the ∆Ep and enhanced the DA oxidation current due to high electrocatalytic activity. As a result, SUWO
3
/SPCEs enabled highly sensitive non-enzymatic detection of DA (LOD: 51.4 nM and sensitivity: 127 µA mM
−1
cm
−2
) and UA (LOD: 253 nM and sensitivity: 55.9 µA mM
−1
cm
−2
) at low concentration. Lastly, SUWO
3
/SPCEs were tested with synthetic urine, in which acceptable recoveries for both molecules (94.02–105.8%) were obtained. Given the high selectivity, the sensor has the potential to be used for highly sensitive simultaneous detection of DA and UA in real biological samples.
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| source | Freely Accessible Japanese Titles - check A-Z of ejournals; MEDLINE; Springer Journals; EZB Electronic Journals Library |
| subjects | Analytical Chemistry Ascorbic Acid - chemistry Carbon - chemistry Chemistry Chemistry and Materials Science Dopamine - chemistry Electrochemical Techniques - methods Electrodes Nanostructures - chemistry Original Paper Oxides Tungsten Uric Acid |
| title | A disposable sensor based on one-pot synthesized tungsten oxide nanostructure-modified screen printed electrodes for selective detection of dopamine and uric acid |
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