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Benali F, Boukoussa B, Issam I, Iqbal J, Mokhtar A, Hachemaoui M, Habeche F, Hacini S, Abboud M. Zinc nanoparticles encapsulated in porous biopolymer beads for reduction of water pollutants and antimicrobial activity. Int J Biol Macromol 2023; 248:125832. [PMID: 37473883 DOI: 10.1016/j.ijbiomac.2023.125832] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 07/06/2023] [Accepted: 07/12/2023] [Indexed: 07/22/2023]
Abstract
This work focuses on the preparation of composite beads from alginate crosslinked with copper at several loading percent and also loaded with ZnNPs. Th obtained samples were applied as catalysts for the reduction of the organic polluants 4-NP, MB, OG, MO, and CR in simple and binary systems. XRD results and TEM images confirmed the presence of ZnNPs in the polymer matrix. XRF and TGA analysis showed that the percentage of the cross-linking agent significantly influences the content of ZnNPs as well as the thermal stability of the resulting material. The catalytic activity of the composite beads showed that the Cu(4 %)-ALG(ZnNPs) sample was the best catalyst for all pollutants. In the simple system, the recorded rate constants for MB, MO, 4-NP, OG, and CR were 0.0133 s-1, 0.0076 s-1, 0.005 s-1, 0.0042 s-1, 0.0036 s-1, respectively. The catalyst was more selective towards the cationic MB dye for binary systems. For antibacterial and antifungal applications, the different materials containing ZnNPs and their counterparts containing Zn2+ were found to be active across all bacterial strains (Gram positive and Gram negative) as well as fungi, and the Zn2+-containing composites in particular performed better across all bacteria and fungi.
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Affiliation(s)
- Fadila Benali
- Département de Génie des Matériaux, Faculté de Chimie, Université des Sciences et de la Technologie Mohamed Boudiaf, BP 1505, El-Mnaouer, 31000 Oran, Algeria
| | - Bouhadjar Boukoussa
- Département de Génie des Matériaux, Faculté de Chimie, Université des Sciences et de la Technologie Mohamed Boudiaf, BP 1505, El-Mnaouer, 31000 Oran, Algeria; Laboratoire de Chimie des Matériaux L.C.M, Université Oran1 Ahmed Ben Bella, BP 1524, El-Mnaouer, 31000 Oran, Algeria
| | - Ismail Issam
- Department of Chemical Engineering, Khalifa University of Science and Technology, P.O. Box 127788, Abu Dhabi, United Arab Emirates
| | - Jibran Iqbal
- College of Natural and Health Sciences, Zayed University, P.O. Box 144534, Abu Dhabi, United Arab Emirates
| | - Adel Mokhtar
- Laboratoire de Chimie des Matériaux L.C.M, Université Oran1 Ahmed Ben Bella, BP 1524, El-Mnaouer, 31000 Oran, Algeria; Département Génie des Procédés, Institut des Sciences et Technologies, Université Ahmed Zabana, 48000 Relizane, Algeria.
| | - Mohammed Hachemaoui
- Laboratoire de Chimie des Matériaux L.C.M, Université Oran1 Ahmed Ben Bella, BP 1524, El-Mnaouer, 31000 Oran, Algeria
| | - Fatima Habeche
- Département de Génie des Matériaux, Faculté de Chimie, Université des Sciences et de la Technologie Mohamed Boudiaf, BP 1505, El-Mnaouer, 31000 Oran, Algeria
| | - Salih Hacini
- Laboratoire de Chimie Fine LCF, Université Oran1 Ahmed Ben Bella, BP-1524, El-Mnaouer, 31000 Oran, Algeria
| | - Mohamed Abboud
- Catalysis Research Group (CRG), Department of Chemistry, College of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
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Tailoring the structural and optical features of (PEO–PVA)/(SrTiO3–CoO) polymeric nanocomposites for optical and biological applications. Polym Bull (Berl) 2023. [DOI: 10.1007/s00289-023-04676-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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Lei C, Sun N, Wu H, Zhao Y, Yu C, Janani BJ, Fakhri A. Bio-photoelectrochemical degradation, and photocatalysis process by the fabrication of copper oxide/zinc cadmium sulfide heterojunction nanocomposites: Mechanism, microbial community and antifungal analysis. CHEMOSPHERE 2022; 308:136375. [PMID: 36088970 DOI: 10.1016/j.chemosphere.2022.136375] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 08/16/2022] [Accepted: 09/05/2022] [Indexed: 06/15/2023]
Abstract
In this work, the fabrication of the CuO on ZnCdS as a heterojunction nanocomposites were conducted by hydrothermal method and the synthesis method was confirmed by the XRD, XPS, EDS, UV-vis spectrum analysis. The CuO/ZnCdS was used as a photocathode in the bio-photoelectrochemical system (BPES) for tetracycline (TC) degradation under solar irradiation. The CuO/ZnCdS photocathode indicated substantial photocatalytic efficiency for TC degradation, due to the fast separation and transfer of photogenerated carriers. The ESR test evaluates the mechanism of degradation, and shows that ·OH, and ·O2- were contributed to TC degradation. The TC degradation was 1.59 times higher than the unilluminated process (98.72% vs 61.71). The photocatalysis test shows that the TC was degraded about 90.5% in 1.5 h. Then, the synthesized CuO/ZnCdS nanocomposites were studied for the biological application such as antifungal activities. CuO/ZnCdS nanocomposites depicted substantial antimicrobial activity versus Candida-albicans by in vitro process. Therefore, this study suggests the novel system for the antibiotics degradation, and as antifungal application.
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Affiliation(s)
- Chao Lei
- College of Biology and Environmental Engineering, Zhejiang Shuren University, Hangzhou, 310015, China
| | - Nabo Sun
- College of Biology and Environmental Engineering, Zhejiang Shuren University, Hangzhou, 310015, China
| | - Huizhen Wu
- College of Biology and Environmental Engineering, Zhejiang Shuren University, Hangzhou, 310015, China
| | - Yonggang Zhao
- College of Biology and Environmental Engineering, Zhejiang Shuren University, Hangzhou, 310015, China
| | - Cun Yu
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, 310051, China.
| | | | - Ali Fakhri
- Department of Chemistry, Academy of Materials Science, Navi Mumbai, India
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Benali F, Boukoussa B, Benkhedouda NEH, Cheddad A, Issam I, Iqbal J, Hachemaoui M, Abboud M, Mokhtar A. Catalytic Reduction of Dyes and Antibacterial Activity of AgNPs@Zn@Alginate Composite Aerogel Beads. Polymers (Basel) 2022; 14:polym14224829. [PMID: 36432956 PMCID: PMC9698220 DOI: 10.3390/polym14224829] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 10/27/2022] [Accepted: 11/04/2022] [Indexed: 11/11/2022] Open
Abstract
This work focuses on the preparation of aerogel composite beads based on Zn(II)-crosslinked alginate and loaded with different percentages of AgNPs using a simple approach. The obtained samples were evaluated in two different applications: the first application consists in their use as catalysts for the reduction of MB, MO, OG and CR dyes in a simple and binary system under the presence of NaBH4. For this, several parameters affecting the catalytic behavior of these catalysts have been investigated and discussed such as the catalyst mass, AgNPs content, dye nature, and the selectivity of the catalyst in a binary system. The second application concerns their antibacterial activities towards two Gram-negative bacteria Escherichia coli (ATCC 25922), and Pseudomonas aeruginosa (ATCC 27853), and a Gram-positive bacteria Staphylococcus aureus (ATCC 25923). The physico-chemical properties of different samples were characterized by XRD, FTIR, SEM/EDS, and TGA analysis. The obtained results confirmed the presence of AgNPs on a highly porous alginate structure. The dispersion of a high percentage of AgNPs leads to the formation of nanoparticles on the outer surface of the alginate which led to their leaching after the catalytic test, while the composite having a low percentage of AgNPs showed good results through all dyes without leaching of AgNPs. For the antibacterial application of the different samples, it was shown that a composite with a higher percentage of AgNPs was the most effective against all bacteria.
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Affiliation(s)
- Fadila Benali
- Département de Génie des Matériaux, Faculté de Chimie, Université des Sciences et de la Technologie Mohamed Boudiaf, BP 1505, El-Mnaouer, Oran 31000, Algeria
| | - Bouhadjar Boukoussa
- Département de Génie des Matériaux, Faculté de Chimie, Université des Sciences et de la Technologie Mohamed Boudiaf, BP 1505, El-Mnaouer, Oran 31000, Algeria
- Laboratoire de Chimie des Matériaux LCM, Université Oran 1 Ahmed Ben Bella, BP 1524, El-Mnaouer, Oran 31000, Algeria
- Correspondence: (B.B.); (J.I.); (M.A.)
| | - Nour-El-Houda Benkhedouda
- Département de Génie des Matériaux, Faculté de Chimie, Université des Sciences et de la Technologie Mohamed Boudiaf, BP 1505, El-Mnaouer, Oran 31000, Algeria
| | - Amina Cheddad
- Département de Génie des Matériaux, Faculté de Chimie, Université des Sciences et de la Technologie Mohamed Boudiaf, BP 1505, El-Mnaouer, Oran 31000, Algeria
| | - Ismail Issam
- Department of Chemical Engineering, Khalifa University of Science and Technology, Abu Dhabi P.O. Box 127788, United Arab Emirates
| | - Jibran Iqbal
- College of Natural and Health Sciences, Zayed University, Abu Dhabi P.O. Box 144534, United Arab Emirates
- Correspondence: (B.B.); (J.I.); (M.A.)
| | - Mohammed Hachemaoui
- Laboratoire de Chimie des Matériaux LCM, Université Oran 1 Ahmed Ben Bella, BP 1524, El-Mnaouer, Oran 31000, Algeria
- Département de Sciences de la Matière, Institut des Sciences et Technologies, Université Ahmed Zabana, Relizane 48000, Algeria
| | - Mohamed Abboud
- Catalysis Research Group (CRG), Department of Chemistry, College of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
- Correspondence: (B.B.); (J.I.); (M.A.)
| | - Adel Mokhtar
- Laboratoire de Chimie des Matériaux LCM, Université Oran 1 Ahmed Ben Bella, BP 1524, El-Mnaouer, Oran 31000, Algeria
- Département Génie des Procédés, Institut des Sciences et Technologies, Université Ahmed Zabana, Relizane 48000, Algeria
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Synthesis, characterization, in vitro antibacterial, and anticancer studies of Ag(I)-N-heterocyclic carbene (NHC) complexes. CHEMICAL PAPERS 2022. [DOI: 10.1007/s11696-022-02498-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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