Antimicrobial performance of amorphous vs. crystalline La1-xSrxCoO3 perovskites

Authors

S. M. AU Shohag, The University of Texas Rio Grande Valley
Fahmida Akhter, The University of Texas Rio Grande Valley
Ahmed Touhami, The University of Texas Rio Grande ValleyFollow
Swati Mohan, The University of Texas Rio Grande ValleyFollow
Md. Wasikur Rahman, The University of Texas Rio Grande ValleyFollow
Mohammed Jasim Uddin, SUNY Polytechnic Institute

Document Type

Article

Publication Date

4-2026

Abstract

Perovskite materials, with their unique crystal structure and chemical properties, are emerging as promising antimicrobial agents for potential biomedical applications. In this research, different weight percentages of Sr2 + doped amorphous and crystalline Lanthanum Cobaltite (La1-xSrxCoO3 defined as LSCO) (x = 0, 0.025, 0.05, 0.1, and 0.15) perovskite was synthesized by using a simple combination of sol-gel and molten-salt processes and characterized by X-ray diffraction (XRD), and scanning electron microscopy (SEM) ensures the uniform morphology of the materials. During antimicrobial study using the Kirby Bauer method, amorphous LSCO showed much better activity than crystalline LSCO against Escherichia coli, Vibrio cholerae, and Bacillus subtilis species. Particularly, the 5 % Sr2+ doped LSCO showed the best performance against Vibrio cholerae, with a 10.44 % increase in the inhibition zone when compared to the undoped LSCO. Furthermore, the 2.5 % Sr2+ doped LSCO increased the inhibition zone by 14.03 % against Escherichia coli. However, it is interesting to note that the introduction of doping resulted in a decline in antibacterial effectiveness for Bacillus subtilis. Ultimately, the largest inhibition zone of 54.5 ± 1.8 mm was recorded against Vibrio cholerae, specifically for La0.95Sr0.05CoO3. These findings clearly highlight the significant impact of Sr²⁺ doping on the antimicrobial properties of LSCO, demonstrating its potential as a valuable material for antibacterial applications.

Comments

http://creativecommons.org/licenses/by-nc-nd/4.0/

Recommended Citation

Shohag, SM Anyet Ullah, Fahmida Akhter, Ahmed Touhami, Swati Mohan, Md Wasikur Rahman, and M. Jasim Uddin. "Antimicrobial performance of amorphous vs. crystalline La1-xSrxCoO3 perovskites." Next Materials 11 (2026): 101688. https://doi.org/10.1016/j.nxmate.2026.101688

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-No Derivative Works 4.0 International License.

Publication Title

Next Materials

DOI

10.1016/j.nxmate.2026.101688