Bioinspired synthesis of Ag/AgCl nanoparticles from Aganonerion Polymorphum leaves: Boosted antibacterial potential

Ho Gia Thien Thanh, Nguyen Van Minh, Duong Nhat Linh, Do Ba Long, Nguyen Anh Phung and Nguyen Tri ()
Additional contact information
Ho Gia Thien Thanh: Vietnam Academy of Science and Technology, Ho Chi Minh City, Viet Nam
Nguyen Van Minh: Ho Chi Minh City Open University, Ho Chi Minh City, Viet Nam
Duong Nhat Linh: Ho Chi Minh City Open University, Ho Chi Minh City, Viet Nam
Do Ba Long: Vietnam Academy of Science and Technology, Ho Chi Minh City, Viet Nam
Nguyen Anh Phung: Vietnam Academy of Science and Technology, Ho Chi Minh City, Viet Nam
Nguyen Tri: Vietnam Academy of Science and Technology, Ho Chi Minh City; Ho Chi Minh City Open University, Ho Chi Minh City, Viet Nam

HO CHI MINH CITY OPEN UNIVERSITY JOURNAL OF SCIENCE - ENGINEERING AND TECHNOLOGY, 2026, vol. 16, issue 1, 87-101

Abstract: The use of plant extracts (mainly polyphenols) as both reducing and stabilizing agents has opened up new scopes in AgNPs biosynthesis. A lack of comprehensive studies on the possibility of Aganonerion Polymorphum (AP) leaves extract prompts an updated synthesis of Ag/AgCl nanoparticles, thanks to the rich source of chlorine in the AP leaves extract, to illuminate the positive effect of AgCl in antibacterial systems. Ag/AgCl nanoparticles were efficiently synthesized using AP leaf extract, serving as both a natural reducing and stabilizing agent. The highest concentrations of polyphenols (2.55 mg/g) and ascorbic acid (2.89 µg/mL) were extracted under optimal conditions (at 70°C for 1.5 hours), acting as the phytochemicals for metal ion reduction to form Ag/AgCl nanoparticles under sunlight, observed by absorbance bands at the wavelength of 400 - 500nm. XRD showed a highly crystalline face-centered cubic structure of Ag and AgCl, and EDX indicated the presence of Ag and Cl. TEM revealed spheres with a nanosize of 15 - 20nm. The zeta potential confirmed the long-term stability of the Ag/AgCl in aqueous solution (-8.7mV). As-prepared Ag/AgCl demonstrated an excellent antibacterial ability against five bacteria, as indicated by their inhibition zone (average diameter > 9.3mm) and minimum inhibitory concentration (MIC, 16.6 μg/mL). This study proposes a green and sustainable strategy for synthesizing Ag/AgCl nanoparticles, employing AP leaf extract as a natural reducing and stabilizing agent under ambient temperature conditions. The synthesized Ag/AgCl nanoparticles exhibited potent antibacterial activity against both Gram-positive and Gram-negative bacteria. Notably, the presence of AgCl further enhanced their efficacy, expanding their potential for advanced antibacterial applications.

Keywords: Aganonerion polymorphum; ascorbic acid; antibacterial; polyphenols; silver nanoparticles (search for similar items in EconPapers)
Date: 2026
References: Add references at CitEc
Citations:

Downloads: (external link)
https://journalofscience.ou.edu.vn/index.php/tech-en/article/view/4228/3380 (application/pdf)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:bjw:techen:v:16:y:2026:i:1:p:87-101

DOI: 10.46223/HCMCOUJS.tech.en.16.1.4228.2026

Access Statistics for this article

HO CHI MINH CITY OPEN UNIVERSITY JOURNAL OF SCIENCE - ENGINEERING AND TECHNOLOGY is currently edited by Nguyen Thuan

More articles in HO CHI MINH CITY OPEN UNIVERSITY JOURNAL OF SCIENCE - ENGINEERING AND TECHNOLOGY from HO CHI MINH CITY OPEN UNIVERSITY JOURNAL OF SCIENCE, HO CHI MINH CITY OPEN UNIVERSITY
Bibliographic data for series maintained by Vu Tuan Truong ().