Cationically Modified Nanocrystalline Cellulose/Carboxyl-Functionalized Graphene Quantum Dots Nanocomposite Thin Film: Characterization and Potential Sensing Application
In this study, highly functional cationically modified nanocrystalline cellulose (NCC)/carboxyl-functionalized graphene quantum dots (CGQD) has been described. The surface of NCC was first modified with hexadecyltrimethylammonium bromide (CTA) before combining with CGQD. The CGQD, CTA-NCC and CTA-NC...
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MDPI AG
2020-09-01
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| Online Access: | https://www.mdpi.com/2073-4352/10/10/875 |
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| author | Najwa Norimanina Muhammad Rosddi Yap Wing Fen Nur Ain Asyiqin Anas Nur Alia Sheh Omar Nur Syahira Md Ramdzan Wan Mohd Ebtisyam Mustaqim Mohd Daniyal |
| author_facet | Najwa Norimanina Muhammad Rosddi Yap Wing Fen Nur Ain Asyiqin Anas Nur Alia Sheh Omar Nur Syahira Md Ramdzan Wan Mohd Ebtisyam Mustaqim Mohd Daniyal |
| author_sort | Najwa Norimanina Muhammad Rosddi |
| collection | DOAJ |
| description | In this study, highly functional cationically modified nanocrystalline cellulose (NCC)/carboxyl-functionalized graphene quantum dots (CGQD) has been described. The surface of NCC was first modified with hexadecyltrimethylammonium bromide (CTA) before combining with CGQD. The CGQD, CTA-NCC and CTA-NCC/CGQD nanocomposites thin films were prepared using spin coating technique. The obtained nanocomposite thin films were then characterized by using the Fourier transform infrared spectroscopy (FTIR) which confirmed the existence of hydroxyl groups, carboxyl groups and alkyl groups in CTA-NCC/CGQD. The optical properties of the thin films were characterized using UV–Vis spectroscopy. The absorption of CTA-NCC/CGQD was high with an optical band gap of 4.127 eV. On the other hand, the CTA-NCC/CGQD nanocomposite thin film showed positive responses towards glucose solution of different concentration using an optical method based on surface plasmon resonance phenomenon. This work suggests that the novel nanocomposite thin film has potential for a sensing application in glucose detection. |
| first_indexed | 2024-03-10T16:01:37Z |
| format | Article |
| id | doaj.art-46c2d8c8dc4146778c886fffb745c757 |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-03-10T16:01:37Z |
| publishDate | 2020-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj.art-46c2d8c8dc4146778c886fffb745c7572023-11-20T15:14:48ZengMDPI AGCrystals2073-43522020-09-01101087510.3390/cryst10100875Cationically Modified Nanocrystalline Cellulose/Carboxyl-Functionalized Graphene Quantum Dots Nanocomposite Thin Film: Characterization and Potential Sensing ApplicationNajwa Norimanina Muhammad Rosddi0Yap Wing Fen1Nur Ain Asyiqin Anas2Nur Alia Sheh Omar3Nur Syahira Md Ramdzan4Wan Mohd Ebtisyam Mustaqim Mohd Daniyal5Department of Physics, Faculty of Science, Universiti Putra Malaysia, UPM Serdang 43400, Selangor, MalaysiaDepartment of Physics, Faculty of Science, Universiti Putra Malaysia, UPM Serdang 43400, Selangor, MalaysiaFunctional Devices Laboratory, Institute of Advanced Technology, Universiti Putra Malaysia, UPM Serdang 43400, Selangor, MalaysiaFunctional Devices Laboratory, Institute of Advanced Technology, Universiti Putra Malaysia, UPM Serdang 43400, Selangor, MalaysiaDepartment of Physics, Faculty of Science, Universiti Putra Malaysia, UPM Serdang 43400, Selangor, MalaysiaFunctional Devices Laboratory, Institute of Advanced Technology, Universiti Putra Malaysia, UPM Serdang 43400, Selangor, MalaysiaIn this study, highly functional cationically modified nanocrystalline cellulose (NCC)/carboxyl-functionalized graphene quantum dots (CGQD) has been described. The surface of NCC was first modified with hexadecyltrimethylammonium bromide (CTA) before combining with CGQD. The CGQD, CTA-NCC and CTA-NCC/CGQD nanocomposites thin films were prepared using spin coating technique. The obtained nanocomposite thin films were then characterized by using the Fourier transform infrared spectroscopy (FTIR) which confirmed the existence of hydroxyl groups, carboxyl groups and alkyl groups in CTA-NCC/CGQD. The optical properties of the thin films were characterized using UV–Vis spectroscopy. The absorption of CTA-NCC/CGQD was high with an optical band gap of 4.127 eV. On the other hand, the CTA-NCC/CGQD nanocomposite thin film showed positive responses towards glucose solution of different concentration using an optical method based on surface plasmon resonance phenomenon. This work suggests that the novel nanocomposite thin film has potential for a sensing application in glucose detection.https://www.mdpi.com/2073-4352/10/10/875nanocrystalline cellulosegraphene quantum dotsthin filmopticalsensingglucose |
| spellingShingle | Najwa Norimanina Muhammad Rosddi Yap Wing Fen Nur Ain Asyiqin Anas Nur Alia Sheh Omar Nur Syahira Md Ramdzan Wan Mohd Ebtisyam Mustaqim Mohd Daniyal Cationically Modified Nanocrystalline Cellulose/Carboxyl-Functionalized Graphene Quantum Dots Nanocomposite Thin Film: Characterization and Potential Sensing Application Crystals nanocrystalline cellulose graphene quantum dots thin film optical sensing glucose |
| title | Cationically Modified Nanocrystalline Cellulose/Carboxyl-Functionalized Graphene Quantum Dots Nanocomposite Thin Film: Characterization and Potential Sensing Application |
| title_full | Cationically Modified Nanocrystalline Cellulose/Carboxyl-Functionalized Graphene Quantum Dots Nanocomposite Thin Film: Characterization and Potential Sensing Application |
| title_fullStr | Cationically Modified Nanocrystalline Cellulose/Carboxyl-Functionalized Graphene Quantum Dots Nanocomposite Thin Film: Characterization and Potential Sensing Application |
| title_full_unstemmed | Cationically Modified Nanocrystalline Cellulose/Carboxyl-Functionalized Graphene Quantum Dots Nanocomposite Thin Film: Characterization and Potential Sensing Application |
| title_short | Cationically Modified Nanocrystalline Cellulose/Carboxyl-Functionalized Graphene Quantum Dots Nanocomposite Thin Film: Characterization and Potential Sensing Application |
| title_sort | cationically modified nanocrystalline cellulose carboxyl functionalized graphene quantum dots nanocomposite thin film characterization and potential sensing application |
| topic | nanocrystalline cellulose graphene quantum dots thin film optical sensing glucose |
| url | https://www.mdpi.com/2073-4352/10/10/875 |
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