Phyto-fabricated Pd@Ag bimetallic nanocomposites using carica papaya leaf extract: A dual-functional platform for catalysis and antimicrobial defence
This study presents a green synthesis approach for bimetallic palladium–silver (Pd@Ag) nanocomposites using Carica papaya leaf extract, aimed at addressing urgent environmental and biomedical challenges. The synthesized Pd@Ag nanoparticles exhibited remarkable catalytic efficiency in degrading hazar...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-01-01
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| Series: | Current Research in Green and Sustainable Chemistry |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666086525000219 |
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| author | Jayamani T A. Elakkiya Devi T. Augustine Arul Prasad B. Scholastica Mary Vithiya Lawrance Richardson |
| author_facet | Jayamani T A. Elakkiya Devi T. Augustine Arul Prasad B. Scholastica Mary Vithiya Lawrance Richardson |
| author_sort | Jayamani T |
| collection | DOAJ |
| description | This study presents a green synthesis approach for bimetallic palladium–silver (Pd@Ag) nanocomposites using Carica papaya leaf extract, aimed at addressing urgent environmental and biomedical challenges. The synthesized Pd@Ag nanoparticles exhibited remarkable catalytic efficiency in degrading hazardous organic dyes, achieving 82 % and 88 % reduction of Congo Red and Methylene Blue, respectively, within minutes in the presence of NaBH4. This highlights their strong potential in wastewater treatment and environmental detoxification. Furthermore, the Pd@Ag nanocomposites demonstrated broad-spectrum antimicrobial activity, showing significant zones of inhibition against major bacterial pathogens including Escherichia coli and Staphylococcus aureus, as well as antifungal effects against Candida albicans and Aspergillus niger. The dual functionality—efficient catalysis and potent antimicrobial defence—establishes these green-synthesized nanoparticles as promising candidates for sustainable environmental and biomedical applications. |
| format | Article |
| id | doaj-art-ddbf468032f94c058031805d7cf2aa6e |
| institution | Kabale University |
| issn | 2666-0865 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Current Research in Green and Sustainable Chemistry |
| spelling | doaj-art-ddbf468032f94c058031805d7cf2aa6e2025-08-20T03:32:20ZengElsevierCurrent Research in Green and Sustainable Chemistry2666-08652025-01-011110046510.1016/j.crgsc.2025.100465Phyto-fabricated Pd@Ag bimetallic nanocomposites using carica papaya leaf extract: A dual-functional platform for catalysis and antimicrobial defenceJayamani T0A. Elakkiya Devi1T. Augustine Arul Prasad2B. Scholastica Mary Vithiya3Lawrance Richardson4PG and Research Department of Chemistry, Dwarakadoss Goverdhandoss Vaishnav College (Autonomous)(Affiliated to University of Madras), Chennai 600106, Tamil Nadu, India; Dept of Chemistry, Alpha College of Engineering, Thirumazhisai, Chennai, 600124, IndiaPG and Research Department of Chemistry, Dwarakadoss Goverdhandoss Vaishnav College (Autonomous)(Affiliated to University of Madras), Chennai 600106, Tamil Nadu, IndiaPG and Research Department of Chemistry, Dwarakadoss Goverdhandoss Vaishnav College (Autonomous)(Affiliated to University of Madras), Chennai 600106, Tamil Nadu, India; Corresponding author. author.PG and Research Department of Chemistry, Auxilium College (Autonomous) (Affiliated to Thiruvalluvar University, Vellore), Vellore 632006, Tamil Nadu, IndiaDepartment of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu City, 30010, TaiwanThis study presents a green synthesis approach for bimetallic palladium–silver (Pd@Ag) nanocomposites using Carica papaya leaf extract, aimed at addressing urgent environmental and biomedical challenges. The synthesized Pd@Ag nanoparticles exhibited remarkable catalytic efficiency in degrading hazardous organic dyes, achieving 82 % and 88 % reduction of Congo Red and Methylene Blue, respectively, within minutes in the presence of NaBH4. This highlights their strong potential in wastewater treatment and environmental detoxification. Furthermore, the Pd@Ag nanocomposites demonstrated broad-spectrum antimicrobial activity, showing significant zones of inhibition against major bacterial pathogens including Escherichia coli and Staphylococcus aureus, as well as antifungal effects against Candida albicans and Aspergillus niger. The dual functionality—efficient catalysis and potent antimicrobial defence—establishes these green-synthesized nanoparticles as promising candidates for sustainable environmental and biomedical applications.http://www.sciencedirect.com/science/article/pii/S2666086525000219Bimetallic nanocompositesCarica papaya leaf extractMethylene blueCongo redAnti-microbial activity |
| spellingShingle | Jayamani T A. Elakkiya Devi T. Augustine Arul Prasad B. Scholastica Mary Vithiya Lawrance Richardson Phyto-fabricated Pd@Ag bimetallic nanocomposites using carica papaya leaf extract: A dual-functional platform for catalysis and antimicrobial defence Current Research in Green and Sustainable Chemistry Bimetallic nanocomposites Carica papaya leaf extract Methylene blue Congo red Anti-microbial activity |
| title | Phyto-fabricated Pd@Ag bimetallic nanocomposites using carica papaya leaf extract: A dual-functional platform for catalysis and antimicrobial defence |
| title_full | Phyto-fabricated Pd@Ag bimetallic nanocomposites using carica papaya leaf extract: A dual-functional platform for catalysis and antimicrobial defence |
| title_fullStr | Phyto-fabricated Pd@Ag bimetallic nanocomposites using carica papaya leaf extract: A dual-functional platform for catalysis and antimicrobial defence |
| title_full_unstemmed | Phyto-fabricated Pd@Ag bimetallic nanocomposites using carica papaya leaf extract: A dual-functional platform for catalysis and antimicrobial defence |
| title_short | Phyto-fabricated Pd@Ag bimetallic nanocomposites using carica papaya leaf extract: A dual-functional platform for catalysis and antimicrobial defence |
| title_sort | phyto fabricated pd ag bimetallic nanocomposites using carica papaya leaf extract a dual functional platform for catalysis and antimicrobial defence |
| topic | Bimetallic nanocomposites Carica papaya leaf extract Methylene blue Congo red Anti-microbial activity |
| url | http://www.sciencedirect.com/science/article/pii/S2666086525000219 |
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