Functionalized cellulose microfibers as reductant agent to gold nanoparticles and its application on SERRS for sensitive detection of phthalocyanine dye

Author(s)

Dognani, Guilherme ; Gomes, Andressa Silva ; Setti, Grazielle de Oliveira ; Martin, Cibely Silva ; Rubira, Rafael Jesus Goncalves ; Constantino, Carlos Jose Leopoldo

• 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