1
|
Usala E, Espinosa E, El Arfaoui W, Morcillo-Martín R, Ferrari B, González Z. Antibacterial Aerogels-Based Membranes by Customized Colloidal Functionalization of TEMPO-Oxidized Cellulose Nanofibers Incorporating CuO. Bioengineering (Basel) 2023; 10:1312. [PMID: 38002436 PMCID: PMC10669038 DOI: 10.3390/bioengineering10111312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 11/03/2023] [Accepted: 11/10/2023] [Indexed: 11/26/2023] Open
Abstract
An innovative colloidal approach is proposed here to carry out the customized functionalization of TEMPO-Oxidized Cellulose Nanofibers (CNF) incorporating non-noble inorganic nanoparticles. A heterocoagulation process is applied between the delignified CNF and as-synthetized CuO nanoparticles (CuO NPs) to formulate mixtures which are used in the preparation of aerogels with antibacterial effect, which could be used to manufacture membranes, filters, foams, etc. The involved components of formulated blending, CNF and CuO NPs, were individually obtained by using a biorefinery strategy for agricultural waste valorization, together with an optimized chemical precipitation, assisted by ultrasounds. The optimization of synthesis parameters for CuO NPs has avoided the presence of undesirable species, which usually requires later thermal treatment with associated costs. The aerogels-based structure, obtained by conventional freeze-drying, acted as 3D support for CuO NPs, providing a good dispersion within the cross-linked structure of the nanocellulose and facilitating direct contact of the antibacterial phase against undesirable microorganisms. All samples showed a positive response against Escherichia coli and Staphylococcus aureus. An increase of the antibacterial response of the aerogels, measured by agar disk diffusion test, has been observed with the increase of CuO NPs incorporated, obtaining the width of the antimicrobial "halo" (nwhalo) from 0 to 0.6 and 0.35 for S. aureus and E. coli, respectively. Furthermore, the aerogels have been able to deactivate S. aureus and E. coli in less than 5 h when the antibacterial assays have been analyzed by a broth dilution method. From CNF-50CuO samples, an overlap in the nanoparticle effect produced a decrease of the antimicrobial kinetic.
Collapse
Affiliation(s)
- Elena Usala
- BioPren Group (RNM940), Chemical Engineering Department, Instituto Químico Para la Energía y el Medioambiente (IQUEMA), Faculty of Science, Universidad de Córdoba (UCO), 14014 Córdoba, Spain; (E.U.); (E.E.); (R.M.-M.)
| | - Eduardo Espinosa
- BioPren Group (RNM940), Chemical Engineering Department, Instituto Químico Para la Energía y el Medioambiente (IQUEMA), Faculty of Science, Universidad de Córdoba (UCO), 14014 Córdoba, Spain; (E.U.); (E.E.); (R.M.-M.)
- Unidad Asociada CSIC-UCO, Fabricación Aditiva de Materiales Compuestos Basados en Celulosa Funcionalizada, Obtenida de Residuos de Biomasa, 14014 Córdoba, Spain;
| | - Wasim El Arfaoui
- BioPren Group (RNM940), Chemical Engineering Department, Instituto Químico Para la Energía y el Medioambiente (IQUEMA), Faculty of Science, Universidad de Córdoba (UCO), 14014 Córdoba, Spain; (E.U.); (E.E.); (R.M.-M.)
| | - Ramón Morcillo-Martín
- BioPren Group (RNM940), Chemical Engineering Department, Instituto Químico Para la Energía y el Medioambiente (IQUEMA), Faculty of Science, Universidad de Córdoba (UCO), 14014 Córdoba, Spain; (E.U.); (E.E.); (R.M.-M.)
| | - Begoña Ferrari
- Unidad Asociada CSIC-UCO, Fabricación Aditiva de Materiales Compuestos Basados en Celulosa Funcionalizada, Obtenida de Residuos de Biomasa, 14014 Córdoba, Spain;
- Instituto de Cerámica y Vidrio, Consejo Superior de Investigaciones Científicas (CSIC), Campus de Cantoblanco, c/Kelsen 5, 28049 Madrid, Spain
| | - Zoilo González
- BioPren Group (RNM940), Chemical Engineering Department, Instituto Químico Para la Energía y el Medioambiente (IQUEMA), Faculty of Science, Universidad de Córdoba (UCO), 14014 Córdoba, Spain; (E.U.); (E.E.); (R.M.-M.)
- Unidad Asociada CSIC-UCO, Fabricación Aditiva de Materiales Compuestos Basados en Celulosa Funcionalizada, Obtenida de Residuos de Biomasa, 14014 Córdoba, Spain;
| |
Collapse
|
2
|
Tang Y, Lai Y, Gao R, Chen Y, Xiong K, Ye J, Zheng Q, Fang Z, Pang G, Lee HJ. Functional Aerogels Composed of Regenerated Cellulose and Tungsten Oxide for UV Detection and Seawater Desalination. Gels 2022; 9:gels9010010. [PMID: 36661778 PMCID: PMC9858587 DOI: 10.3390/gels9010010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 12/20/2022] [Accepted: 12/22/2022] [Indexed: 12/28/2022] Open
Abstract
Functional aerogels composed of regenerated cellulose and tungsten oxide were fabricated by implanting tungsten-oxide nanodots into regenerated cellulose fiber. This superfast photochromic property benefitted from the small size and even distribution of tungsten oxide, which was caused by the confinement effect of the regenerated cellulose fiber. The composite was characterized using XRD and TEM to illustrate the successful loading of tungsten oxide. The composite turned from pale white to bright blue under ambient solar irradiation in five seconds. The evidence of solar absorption and electron paramagnetic resonance (EPR) demonstrated the fast photochromic nature of the composite and its mechanism. Furthermore, carbon fiber filled with preferential growth tungsten-oxide nanorods was obtained by annealing the photochromic composite in a N2 atmosphere. This annealed product exhibited good absorption across the whole solar spectrum and revealed an excellent photothermal conversion performance. The water evaporation rate reached 1.75 kg m-2 h-1 under one sun illumination, which is 4.4 times higher than that of pure water. The photothermal conversion efficiency was 85%, which shows its potential application prospects in seawater desalination.
Collapse
Affiliation(s)
- Yanjin Tang
- College of Science and Technology, Ningbo University, 521 Wenwei Road, Ningbo 315300, China
- Department of Smart Fab. Technology, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Yuhan Lai
- College of Science and Technology, Ningbo University, 521 Wenwei Road, Ningbo 315300, China
| | - Ruiqin Gao
- School of Biological and Chemical Engineering, NingboTech University, No. 1 South Qianhu Road, Ningbo 315100, China
| | - Yuxuan Chen
- College of Science and Technology, Ningbo University, 521 Wenwei Road, Ningbo 315300, China
| | - Kexin Xiong
- College of Science and Technology, Ningbo University, 521 Wenwei Road, Ningbo 315300, China
| | - Juan Ye
- College of Science and Technology, Ningbo University, 521 Wenwei Road, Ningbo 315300, China
| | - Qi Zheng
- College of Science and Technology, Ningbo University, 521 Wenwei Road, Ningbo 315300, China
| | - Zhenxing Fang
- College of Science and Technology, Ningbo University, 521 Wenwei Road, Ningbo 315300, China
- Correspondence: (Z.F.); (G.P.)
| | - Guangsheng Pang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of Chemistry, Jilin University, Changchun 130012, China
- Correspondence: (Z.F.); (G.P.)
| | - Hoo-Jeong Lee
- Department of Smart Fab. Technology, Sungkyunkwan University, Suwon 16419, Republic of Korea
| |
Collapse
|
3
|
Zámbó D, Schlosser A, Rusch P, Lübkemann F, Koch J, Pfnür H, Bigall NC. A Versatile Route to Assemble Semiconductor Nanoparticles into Functional Aerogels by Means of Trivalent Cations. Small 2020; 16:e1906934. [PMID: 32162787 DOI: 10.1002/smll.201906934] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 02/17/2020] [Accepted: 02/18/2020] [Indexed: 05/14/2023]
Abstract
3D nanoparticle assemblies offer a unique platform to enhance and extend the functionality and optical/electrical properties of individual nanoparticles. Especially, a self-supported, voluminous, and porous macroscopic material built up from interconnected semiconductor nanoparticles provides new possibilities in the field of sensing, optoelectronics, and photovoltaics. Herein, a method is demonstrated for assembling semiconductor nanoparticle systems containing building blocks possessing different composition, size, shape, and surface ligands. The method is based on the controlled destabilization of the particles triggered by trivalent cations (Y3+ , Yb3+ , and Al3+ ). The effect of the cations is investigated via X-ray photoelectron spectroscopy. The macroscopic, self-supported aerogels consist of the hyperbranched network of interconnected CdSe/CdS dot-in-rods, or CdSe/CdS as well as CdSe/CdTe core-crown nanoplatelets is used to demonstrate the versatility of the procedure. The non-oxidative assembly method takes place at room temperature without thermal activation in several hours and preserves the shape and the fluorescence of the building blocks. The assembled nanoparticle network provides longer exciton lifetimes with retained photoluminescence quantum yields, that make these nanostructured materials a perfect platform for novel multifunctional 3D networks in sensing. Various sets of photoelectrochemical measurements on the interconnected semiconductor nanorod structures also reveal the enhanced charge carrier separation.
Collapse
Affiliation(s)
- Dániel Zámbó
- Institute of Physical Chemistry and Electrochemistry, Leibniz Universität Hannover, Hannover, 30167, Germany
- Laboratory of Nano and Quantum Engineering, Leibniz Universität Hannover, Hannover, 30167, Germany
| | - Anja Schlosser
- Institute of Physical Chemistry and Electrochemistry, Leibniz Universität Hannover, Hannover, 30167, Germany
- Laboratory of Nano and Quantum Engineering, Leibniz Universität Hannover, Hannover, 30167, Germany
| | - Pascal Rusch
- Institute of Physical Chemistry and Electrochemistry, Leibniz Universität Hannover, Hannover, 30167, Germany
- Laboratory of Nano and Quantum Engineering, Leibniz Universität Hannover, Hannover, 30167, Germany
| | - Franziska Lübkemann
- Institute of Physical Chemistry and Electrochemistry, Leibniz Universität Hannover, Hannover, 30167, Germany
- Laboratory of Nano and Quantum Engineering, Leibniz Universität Hannover, Hannover, 30167, Germany
| | - Julian Koch
- Institute of Solid State Physics, Leibniz Universität Hannover, Hannover, 30167, Germany
| | - Herbert Pfnür
- Laboratory of Nano and Quantum Engineering, Leibniz Universität Hannover, Hannover, 30167, Germany
- Institute of Solid State Physics, Leibniz Universität Hannover, Hannover, 30167, Germany
| | - Nadja C Bigall
- Institute of Physical Chemistry and Electrochemistry, Leibniz Universität Hannover, Hannover, 30167, Germany
- Laboratory of Nano and Quantum Engineering, Leibniz Universität Hannover, Hannover, 30167, Germany
- Cluster of Excellence PhoenixD (Photonics, Optics, and Engineering - Innovation Across Disciplines), Leibniz Universität Hannover, Hannover, 30167, Germany
| |
Collapse
|