Immobilization on Cellulose Paper of a Chemosensor for CdSe-Cys QDs
The Schiff base ligand H<sub>2</sub>SB derived from the condensation of <i>N</i>-(2-aminobenzyl)-5-(dimethylamino)naphthalene-1-sulfonamide with 4-formyl-3-hydroxybenzoic acid has been investigated as a chemosensor for the detection of CdSe-Cys QDs in water samples. We immobi...
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MDPI AG
2022-11-01
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| Series: | Chemistry Proceedings |
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| author | Yeneva Alves-Iglesias Pilar Bermejo-Barrera Ana María García-Deibe Matilde Fondo Jesús Sanmartín-Matalobos |
| author_facet | Yeneva Alves-Iglesias Pilar Bermejo-Barrera Ana María García-Deibe Matilde Fondo Jesús Sanmartín-Matalobos |
| author_sort | Yeneva Alves-Iglesias |
| collection | DOAJ |
| description | The Schiff base ligand H<sub>2</sub>SB derived from the condensation of <i>N</i>-(2-aminobenzyl)-5-(dimethylamino)naphthalene-1-sulfonamide with 4-formyl-3-hydroxybenzoic acid has been investigated as a chemosensor for the detection of CdSe-Cys QDs in water samples. We immobilized H<sub>2</sub>SB onto cellulose paper by forming an amide bond, which results from the condensation of a carboxylic acid and an amine. Three dominant signals located around 270, 330, and 420 nm in the diffuse reflectance spectrum of the H<sub>2</sub>SB-modified paper demonstrated its immobilization. A linear decrease can be observed in the absorbance of the 270 nm band with the increase of the CdSe-Cys QDs concentration from 100 ppb to 2 ppm. The LOD and LOQ show values of 245 and 815 ppb, respectively. An interaction via metal–ligand coordination between CdSe-Cys QDs and H<sub>2</sub>SB has been demonstrated with <sup>1</sup>H NMR, ATR-FTIR, and UV-Vis spectroscopy. |
| first_indexed | 2024-03-11T02:38:18Z |
| format | Article |
| id | doaj.art-e4023fdd4b42429ebc238f93df37a98e |
| institution | Directory Open Access Journal |
| issn | 2673-4583 |
| language | English |
| last_indexed | 2024-03-11T02:38:18Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Chemistry Proceedings |
| spelling | doaj.art-e4023fdd4b42429ebc238f93df37a98e2023-11-18T09:48:52ZengMDPI AGChemistry Proceedings2673-45832022-11-011219210.3390/ecsoc-26-13561Immobilization on Cellulose Paper of a Chemosensor for CdSe-Cys QDsYeneva Alves-Iglesias0Pilar Bermejo-Barrera1Ana María García-Deibe2Matilde Fondo3Jesús Sanmartín-Matalobos4Coordination and Supramolecular Chemistry Group (Suprametal), Institute of Materials (iMATUS), Department of Inorganic Chemistry, Faculty of Chemistry, Universidade de Santiago de Compostela, Avenida das Ciencias s/n, 15782 Santiago de Compostela, SpainTrace Element, Speciation and Spectroscopy Group (GETEE)—Institute of Materials (iMATUS), Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Chemistry, Universidade de Santiago de Compostela, Avenida das Ciencias, s/n, 15782 Santiago de Compostela, SpainCoordination and Supramolecular Chemistry Group (Suprametal), Institute of Materials (iMATUS), Department of Inorganic Chemistry, Faculty of Chemistry, Universidade de Santiago de Compostela, Avenida das Ciencias s/n, 15782 Santiago de Compostela, SpainCoordination and Supramolecular Chemistry Group (Suprametal), Institute of Materials (iMATUS), Department of Inorganic Chemistry, Faculty of Chemistry, Universidade de Santiago de Compostela, Avenida das Ciencias s/n, 15782 Santiago de Compostela, SpainCoordination and Supramolecular Chemistry Group (Suprametal), Institute of Materials (iMATUS), Department of Inorganic Chemistry, Faculty of Chemistry, Universidade de Santiago de Compostela, Avenida das Ciencias s/n, 15782 Santiago de Compostela, SpainThe Schiff base ligand H<sub>2</sub>SB derived from the condensation of <i>N</i>-(2-aminobenzyl)-5-(dimethylamino)naphthalene-1-sulfonamide with 4-formyl-3-hydroxybenzoic acid has been investigated as a chemosensor for the detection of CdSe-Cys QDs in water samples. We immobilized H<sub>2</sub>SB onto cellulose paper by forming an amide bond, which results from the condensation of a carboxylic acid and an amine. Three dominant signals located around 270, 330, and 420 nm in the diffuse reflectance spectrum of the H<sub>2</sub>SB-modified paper demonstrated its immobilization. A linear decrease can be observed in the absorbance of the 270 nm band with the increase of the CdSe-Cys QDs concentration from 100 ppb to 2 ppm. The LOD and LOQ show values of 245 and 815 ppb, respectively. An interaction via metal–ligand coordination between CdSe-Cys QDs and H<sub>2</sub>SB has been demonstrated with <sup>1</sup>H NMR, ATR-FTIR, and UV-Vis spectroscopy.https://www.mdpi.com/2673-4583/12/1/92chemosensorSchiff baseCdSe-Cys QDsUV-Vis spectroscopy |
| spellingShingle | Yeneva Alves-Iglesias Pilar Bermejo-Barrera Ana María García-Deibe Matilde Fondo Jesús Sanmartín-Matalobos Immobilization on Cellulose Paper of a Chemosensor for CdSe-Cys QDs Chemistry Proceedings chemosensor Schiff base CdSe-Cys QDs UV-Vis spectroscopy |
| title | Immobilization on Cellulose Paper of a Chemosensor for CdSe-Cys QDs |
| title_full | Immobilization on Cellulose Paper of a Chemosensor for CdSe-Cys QDs |
| title_fullStr | Immobilization on Cellulose Paper of a Chemosensor for CdSe-Cys QDs |
| title_full_unstemmed | Immobilization on Cellulose Paper of a Chemosensor for CdSe-Cys QDs |
| title_short | Immobilization on Cellulose Paper of a Chemosensor for CdSe-Cys QDs |
| title_sort | immobilization on cellulose paper of a chemosensor for cdse cys qds |
| topic | chemosensor Schiff base CdSe-Cys QDs UV-Vis spectroscopy |
| url | https://www.mdpi.com/2673-4583/12/1/92 |
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