| Full text | |
| Author(s): |
Dognani, Guilherme
;
Gomes, Andressa Silva
;
Setti, Grazielle de Oliveira
;
Martin, Cibely Silva
;
Rubira, Rafael Jesus Goncalves
;
Constantino, Carlos Jose Leopoldo
Total Authors: 6
|
| Document type: | Journal article |
| Source: | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING; v. 11, n. 6, p. 10-pg., 2023-10-23. |
| Abstract | |
Cellulose-based materials have drawn great attention in the world due to its abundance, renewable source, biodegradability, and easy functionalization of structure. Herein, microfibrillar cationic dialdehyde cellulose (CMF) using Girard's reagent T was produced. The functional groups of CMF were employed to reduce gold(III) into nanoparticles (AuNPs) which remain anchored on the fibers, designing a never-before encountered hybrid CMF/AuNPs. The AuNPs are well-dispersed, presenting an average size of 25 nm. The CMF showed an excellent reducing agent without any other chemicals, providing a green synthesis route. The novel hybrid was applied as substrate for surface-enhanced resonance Raman scattering (SERRS) spectroscopy to nickel(II) tetrasulfonated phthalocyanine (NiTsPc) detection as a proof-of-principle. A detection limit (LOD) in order of 10-7 mol/L and a quantification limit (LOQ) of 3.58 x 10-7 mol/L for the band at 1359 cm-1 were found. The CMF/AuNPs held considerable promise as an effective SERRS substrate for sensitive detection and quantification of trace molecules. (AU) | |
| FAPESP's process: | 20/06577-1 - DEVELOPMENT OF HYBRID SYSTEMS OF CELLULOSE MICROFIBERS AND GOLD NANOPARTICLES FOR REMOVAL AND DETECTION (VIA SERS) OF EMERGING CONTAMINANTS IN AQUEOUS MEDIA |
| Grantee: | Guilherme Dognani |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| FAPESP's process: | 19/12885-3 - Multi-User Equipment approved in grant 2013/07793-6: Solid-State Nuclear Magnetic Resonance spectrometer |
| Grantee: | José Fabián Schneider |
| Support Opportunities: | Multi-user Equipment Program |
| FAPESP's process: | 17/15019-0 - Combination of confocal fluorescence microscopy and surface-enhanced Raman scattering techniques: interaction, detection, and quantification of molecules of interest in biomimetic system. |
| Grantee: | Cibely da Silva Martin Sonvesso |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| FAPESP's process: | 20/05423-0 - Detection of pesticides (cocktails) used in sugarcane crops and their effect on biological systems |
| Grantee: | Rafael Jesus Gonçalves Rubira |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| FAPESP's process: | 20/16269-2 - Development of flexible substrate-based sensors for pesticide detection via SERS |
| Grantee: | Grazielle de Oliveira Setti Gibin |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| FAPESP's process: | 18/22214-6 - Towards a convergence of technologies: from sensing and biosensing to information visualization and machine learning for data analysis in clinical diagnosis |
| Grantee: | Osvaldo Novais de Oliveira Junior |
| Support Opportunities: | Research Projects - Thematic Grants |