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All Journal Jurnal Pendidikan Sains Indonesia (Indonesian Journal of Science Education) JIPI (Jurnal IPA dan Pembelajaran IPA)
Sari*, Sri Adelila
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Biochemistry, Genetics & Molecular Biology Chemistry Education Environmental Science Physics

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Utilization of Banana Peel Waste as Anti-bacterial Organic Gloves with Latex Addition Sari*, Sri Adelila; Kabeakan, Feri Yuni; Purba, Elsa Christine; Vedha, Renjana Sekar; Simarmata, Yesi Angelia; Aldi, Irfan; Hasibuan, Hanisah
Jurnal IPA & Pembelajaran IPA Vol 8, No 3 (2024): SEPTEMBER 2024
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jipi.v8i3.40885

Abstract

The increased use of synthetic gloves made from plastics such as nitrile and vinyl resulted in serious environmental problems due to plastic waste that was difficult to decompose. This study aimed to utilize banana peel waste for producing antibacterial organic gloves with the addition of latex. The manufacturing method involved mixing latex with ionol as an antioxidant, sulfur for vulcanization, and banana peel powder to add antibacterial properties. Tensile strength testing was conducted by varying the proportion of banana peel and chemical treatment using NaOH and NH4OH solutions. The results showed that increasing the proportion of banana peel led to a decrease in tensile strength and elongation of the material, from 22.5 MPa and 550% at a 10% banana peel ratio to 16.0 MPa and 480% at a 40% ratio. Treatment with NaOH resulted in a greater reduction than NH4OH. This study demonstrated that banana peels had potential as an environmentally friendly additive for the manufacture of antibacterial organic gloves. To improve its effectiveness, it was recommended that future research focus on optimizing the proportion of ingredients, developing the production process, and evaluating costs to achieve an optimal balance between quality, durability, and production efficiency
Biosynthesis and Mapping of ZnO Nanoparticles Using Celery Leaf Extract as Latent Fingerprint Identification Sari*, Sri Adelila; Nabillah, Luthfi Qori; Putri Br. Siregar, Riri Virzan; Ramadhani, Tiara; Br. Sinulaki, Lesa Octavia; Marbun, Kristin Enjelika
Jurnal IPA & Pembelajaran IPA Vol 8, No 4 (2024): DECEMBER 2024
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jipi.v8i4.40901

Abstract

Latent fingerprint identification is an important aspect in forensic science that helps in revealing criminals. Latent fingerprint visualization methods continue to develop to improve their effectiveness and safety. This study aims to synthesize and map ZnO nanoparticles using celery leaf extract (Apium graveolens L.) and test its effectiveness in latent fingerprint identification. Celery leaf extract is used as a reducing agent and stabilizer in the biosynthesis of ZnO nanoparticles. Characterization of ZnO nanoparticles was carried out using FTIR and SEM-EDS. The characterization results showed that ZnO nanoparticles have a good crystal structure and uniform particle size. Application testing on porous and non-porous surfaces showed that ZnO nanoparticles were able to significantly increase the visibility of latent fingerprints compared to conventional methods. On non-porous surfaces, fingerprint visualization showed clearer results compared to porous surfaces. Thus, this study provides an environmentally friendly and effective solution for latent fingerprint identification in forensic applications, as well as expanding the potential use of natural materials in nanoparticle biosynthesis
The Role of Augmented Reality in Transforming Education to Support Sustainable Development Goals: A Literature Review Sari*, Sri Adelila; Hasibuan, Hanisah; Sinaga, Marudut; Talib, Corrienna Abdul
Jurnal Pendidikan Sains Indonesia Vol 13, No 4 (2025): OCTOBER 2025
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jpsi.v13i4.47732

Abstract

Access to quality education remains a challenge in developing nations, including Indonesia. Augmented reality (AR) has emerged as a promising tool to address this gap. This review aimed to examine AR applications in education from 2001 to 2024, focusing on their impact on learning outcomes and accessibility. The study analyzed 171 articles selected through a systematic search in databases like scopus and IEEE explore. Key aspects reviewed include AR tools, applications, evaluation methods, and target demographics. Findings highlight ARs effectiveness in STEM education, vocational training, and cultural learning through features like 3D visualizations, interactive simulations, and animations, enhancing engagement and skill acquisition. AR aligns with sustainable development goals 4 (quality education), 9 (industry, innovation, and infrastructure), and 10 (reduced inequality) by improving access to education and reducing inequalities. However, challenges such as inadequate teacher training, limited infrastructure, and the need for localized content hinder broader implementation. The review concludes that AR tools should address pedagogical and contextual needs for optimal impact. Recommendations include expanding teacher training, improving access to technology, and developing culturally relevant content. Future research should explore scalable, long-term AR solutions to enhance global education
Utilization of Sikkam Bark Extract on Iron Corrosion Inhibition in H2SO4 Solution: A Study on the Effectiveness of Iron Material Protection Sari*, Sri Adelila; Situmorang, Zukyandus Rivaldi; Sinaga, Ribka Angelia; Tarigan, Uci Gresia; Min, Ho Soon
Jurnal IPA & Pembelajaran IPA Vol 9, No 4 (2025): DECEMBER 2025
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jipi.v9i4.48981

Abstract

Corrosion represents a major challenge in industrial systems due to its detrimental impact on the performance, safety, and durability of metallic materials, particularly carbon steel in acidic environments. This study evaluated the effectiveness of sikkam bark extract (Bischofia javanica Blume) as an eco-friendly corrosion inhibitor for carbon steel in sulfuric acid (H2SO4) solution. The extract, obtained via maceration using 96% ethanol, was applied in various concentrations to 15% HSO media, with specimens immersed for 24 hours at 30C. The corrosion behavior was analyzed through gravimetric measurements, pH monitoring, and surface morphology characterization using scanning electron microscopy (SEM). The highest inhibition efficiency of 95.56% was achieved at 5% inhibitor concentration in 5% H2SO4, accompanied by a significant reduction in mass loss and corrosion rate. The increase in solution pH after immersion confirmed the neutralization of H ions and the formation of a stable passive film composed of tanninFe complexes on the steel surface. SEM analysis further revealed a compact and continuous organic layer responsible for suppressing ion diffusion and electron transfer. These results demonstrate that sikkam bark extract functions as a highly efficient and sustainable green inhibitor, offering strong potential for corrosion mitigation in acidic environments relevant to petrochemical and industrial applications
Co-Authors Aldi, Irfan Br. Sinulaki, Lesa Octavia Hasibuan, Hanisah Ho Soon Min Kabeakan, Feri Yuni Marbun, Kristin Enjelika Marudut Sinaga Nabillah, Luthfi Qori Purba, Elsa Christine Putri Br. Siregar, Riri Virzan Ramadhani, Tiara Simarmata, Yesi Angelia Sinaga, Ribka Angelia Situmorang, Zukyandus Rivaldi Talib, Corrienna Abdul Tarigan, Uci Gresia Vedha, Renjana Sekar