Indochina Applied Sciences - IAS

International journal and publication of theoretical and experimental materials energy
- Publication Free
- TCI2, ACI

01/09/2026

🎉 Indochina Applied Sciences (IAS) Vol. 15 No. 3 (2026) is now available! https://ph01.tci-thaijo.org/index.php/jmsae_ceae
📆 Vol. 15 No. 3 | September–December 2026
📚 Discover our latest issue, featuring research in materials science, energy storage, thin-film technology, and sensor applications.

🌐 All articles are Open Access and freely available to researchers, academics, students, and readers worldwide.

📖 Explore the latest issue:
Indochina Applied Sciences (IAS)

🙏 Our sincere thanks to all authors, reviewers, editors, and contributors for their continued support.

01/05/2026

🎉Vol. 15 No. 2 (2026): Indochina Applied Sciences (IAS)
📆 (May – August)
🔍Published on 2026-01-05
https://ph01.tci-thaijo.org/index.php/jmsae_ceae
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06/02/2026

📢 IUMRS-ICEM 2026: The 19th International Conference on Electronic Materials, Chiang Mai, Thailand

The International Union of Materials Research Societies – The 19th International Conference on Electronic Materials (IUMRS-ICEM 2026) will be held in Chiang Mai, Thailand, from June 28 to July 1, 2026. Organized by the Materials Research Society of Thailand and Chiang Mai University, the conference provides an international platform for researchers and professionals to present and exchange advances in electronic materials, covering topics such as semiconductors, photonic and biomaterials, flexible and wearable electronics, energy-related materials, advanced packaging, materials characterization, AI-driven electronics, and environmentally friendly materials processing.

Important Dates

- Call for Abstracts: December 2025
- Abstract Submission Deadline: February 2026
- Abstract Acceptance Notification: April 2026
- Early-bird Registration Deadline: May 2026
- Conference Dates: June 28 – July 1, 2026

For more information, please visit the conference website:
https://www.iumrs-icem2026.org

05/01/2026

Dual Function of Streptomyces sp. KKU215 in Biocontrol of Bacterial Wilt and Growth Promotion of Chili
By Aroon Wongjiratthiti, Suwapha Sawiphak
https://ph01.tci-thaijo.org/index.php/jmsae_ceae/article/view/263711

Abstract
Bacterial wilt, caused by Ralstonia pseudosolanacearum, poses a serious threat to chili production. This study investigated the dual potential of Streptomyces sp. KKU215 as both a biocontrol agent against this pathogen and a plant growth-promoting bacterium for chili. The research involved in vitro antagonism assays, effects on chili seedling growth through seed priming, and effects in the biocontrol of bacterial wilt and growth promotion in pot experiments. In vitro assays confirmed that Streptomyces sp. KKU215 effectively inhibited R. pseudosolanacearum growth within 2 days, producing a clear zone with a diameter of 32.20 mm. Priming chili seeds with Streptomyces sp. KKU215 for 30 min significantly enhanced seedling growth 30 days after seeding, with increases in shoot length (14.21 vs. 12.25 cm), total length (21.05 vs. 18.63 cm), fresh weight (16.04 vs. 12.40 g), and dry weight (1.88 vs. 1.20 g), accompanied by a denser root system and larger leaves compared to the control. Most notably, in pot experiments, application of Streptomyces sp. KKU215 significantly suppressed bacterial wilt, achieving a disease severity reduction from 87.50% in the control to only 16.67% in the treated plants. Streptomyces sp. KKU215-treated seedlings showed enhanced growth, with enhanced growth, reaching maximum values for shoot length (28.26 cm), root length (24.93 cm), fresh weight (7.56 g), and dry weight (0.89 g). These findings highlight Streptomyces sp. KKU215 is a highly promising dual-function agent for sustainable chili cultivation. Further validation in field trials and the development of a stable formulation are essential next steps for practical application.

DOI: https://doi.org/10.55674/ias.v15i1.263711
Keywords: Actinomycetes, Biological control; Bird chili, Plant growth-promoting bacteria, Ralstonia pseudosolanacearum

How to Cite
Wongjiratthiti, A., & Sawiphak, S. (2025). Dual Function of Streptomyces sp. KKU215 in Biocontrol of Bacterial Wilt and Growth Promotion of Chili. Indochina Applied Sciences, 15(1), 263711. https://doi.org/10.55674/ias.v15i1.263711
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02/01/2026

Carbon Nanotubes and Copper Oxide as Electro-Catalysts for Rechargeable Zinc-Air Batteries
By Chonyada Kornsai, Sukunya Phuchahan, Watsayod Ananpreechakorn
https://ph01.tci-thaijo.org/index.php/jmsae_ceae/article/view/262147

Abstract
C**s and CuO will be used as electrocatalysts for redox reactions in rechargeable zinc-air batteries as the aim of this research. A carbon felt substrate was used to coat the CuO/C**s composite, and the cathode properties were examined. Analyzed using XRD, FE-SEM, EDS, FT-IR, CV, and LSV. The results indicate that CuO/C**s exhibits a monoclinic and hexagonal crystal structure, along with the presence of aromatic structures within the C**s. The retention of PVDF was confirmed, and the composite demonstrated uniform dispersion on the carbon felt. The elemental composition was found to be C (54.52%), F (37.35% Cu (4.95%) and O (3.18%). At an applied voltage of 2 V, the current density increased from
0.66 to 6.92 mA cm–2, while at 2.40 V, the current density decreased from -0.34 to -3.67 mA cm–2. After 50 cycles, the current density declined by 5− 10%, indicating moderate electrochemical stability. The findings suggest that CuO/C**s is a promising bifunctional electrocatalyst for both OER and ORR. Additionally, this research can be further developed into educational materials to enhance the understanding of zinc-air battery technology.

Keywords: Carbon Nanotubes, Copper Oxide, Electro-catalysts, Zinc-Air Batteries

How to Cite
Kornsai, C., Phuchahan, S., & Ananpreechakorn, W. (2025). Carbon Nanotubes and Copper Oxide as Electro-Catalysts for Rechargeable Zinc-Air Batteries. Indochina Applied Sciences, 15(1), 262147. https://doi.org/10.55674/ias.v15i1.262147
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Vol. 15 No. 1 (2026): Indochina Applied Sciences (IAS)(January – April)
https://ph01.tci-thaijo.org/index.php/jmsae_ceae

01/01/2026

🎉Vol. 15 No. 1 (2026): Indochina Applied Sciences (IAS)
📆 (January – April)
🔍Published on 2026-01-01
https://ph01.tci-thaijo.org/index.php/jmsae_ceae
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262147 - Carbon Nanotubes and Copper Oxide as Electro-Catalysts for Rechargeable Zinc-Air Batteries
By Chonyada Kornsai, Sukunya Phuchahan, Watsayod Ananpreechakorn
https://ph01.tci-thaijo.org/index.php/jmsae_ceae/article/view/262147
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263711 - Dual Function of Streptomyces sp. KKU215 in Biocontrol of Bacterial Wilt and Growth Promotion of Chili
By Aroon Wongjiratthiti, Suwapha Sawiphak
https://ph01.tci-thaijo.org/index.php/jmsae_ceae/article/view/263711
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ที่อยู่

Center Of Excellence On Alternative Energy, Research And Development Institute, Sakon Nakhon Rajabhat University, 680 Nittayo Road, Mueang District
Sakon Nakhon
47000

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