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All Journal Jurnal Pemberdayaan: Publikasi Hasil Pengabdian kepada Masyarakat (JPM ITTC ) Helium: Journal of Science and Applied Chemistry
Rahayu, Martina Asti
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Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Environmental Science Materials Science & Nanotechnology Social Sciences

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Integrasi Smartphone dan ImageJ sebagai Inovasi Digital untuk Praktikum Deteksi Pencemaran Air di SMAN 13 Jambi Rahayu, Martina Asti; Erliana, Dina; Tarigan, Indra Lasmana; Wijaya, Dhian Eka; Permana, Edwin; Safitri, Ayu Nadila
Jurnal Pemberdayaan: Publikasi Hasil Pengabdian Kepada Masyarakat Vol. 4 No. 2 (2025): Juli-Desember
Publisher : CV. ITTC INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47233/jpmittc.v4i2.4015

Abstract

Limited laboratory facilities have become a major obstacle in conducting science practicums at SMA Negeri 13 Jambi. In fact, laboratory activities are essential components of science education to develop students’ scientific skills and contextual conceptual understanding. This community service program aimed to enhance the capacity of teachers and students in conducting simple digital-based practicums using Smartphone Digital Image Colorimetry (SDIC) and the ImageJ software as an alternative to conventional spectrophotometry. The program employed a participatory and quasi-experimental approach through five main stages: (1) preparation and coordination with the school, (2) training on water pollution concepts and digital colorimetry principles, (3) demonstration of Fe²⁺ detection in environmental water samples using 1,10-phenanthroline, (4) color image analysis using ImageJ, and (5) evaluation of participants’ understanding and satisfaction. The subjects consisted of 25 eleventh-grade science students and 4 accompanying teachers selected purposively. Evaluation was conducted through pre- and post-tests, observation of practical skills, and satisfaction questionnaires. The results showed an average increase of 42.5% in students’ understanding after participating in the training, with a significant improvement in their ability to analyze color data. Additionally, 92% of participants stated that the SDIC method was engaging, easy to apply, and increased their interest in science practicums. The program produced printed and digital practical modules, ImageJ tutorial videos, and a contextual learning model that can be replicated in other schools with limited facilities. Therefore, the application of SDIC proved effective as an innovative, low-cost, and practical science learning approach that supports the strengthening of digital science literacy in secondary schools.
Inovasi Produk Kreatif dari Ecobrik Berbasis Limbah Plastik di Betara Tanjung Jabung Barat Permana, Edwin; Limbong, Kristina Oktavia; Ramadhani, Fery; Satriyuda, Rafael; Putri, Nazwa Dwi; Manullang, Susan Adventri; Nainggolan, Eni Mika Agus Br; Ramadani, Rani; Gultom, Ruben Aditia; Nurjamil, Dimas Setya; Wijaya, Dhian Eka; Rahayu, Martina Asti; Satrio, Dicky
Jurnal Pemberdayaan: Publikasi Hasil Pengabdian Kepada Masyarakat Vol. 5 No. 1 (2026): Januari - Juni
Publisher : CV. ITTC INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47233/jpmittc.v5i1.4454

Abstract

The waste problem in Indonesia is very dangerous for the environment and health of the Indonesian people. The waste problem is a classic problem that is always faced by residents, especially in the Betara area of ​​West Tanjung Jabung Regency. The problem of plastic waste has several broad and serious negative impacts on the environment and human health. This aims to increase awareness of the Betara community, West Tanjung Jabung Regency, about the benefits of managing plastic waste through recycling into functional ecobricks. the continuity of activities causes changes or activities that have been previously designed. Various programs and activities that have been carried out by the team have target achievements that can provide many benefits for students and local residents.
Silver Nanoparticles in Point-of-Care Diagnostics: Enhancing Sensitivity, Selectivity, and Future Prospects Rahayu, Martina Asti
Helium: Journal of Science and Applied Chemistry Vol. 5 No. 2 (2025): Helium: Journal of Science and Applied Chemistry
Publisher : Study Program of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/helium.v5i2.29

Abstract

Silver nanoparticles (AgNPs) have emerged as indispensable nanomaterials for point-of-care (POC) medical diagnostics, due to their unique optical, electrical, and chemical properties that enhance sensor sensitivity, selectivity, and stability. This review systematically discusses the fundamental physicochemical characteristics of AgNPs, with emphasis on surface plasmon resonance (SPR) and its role in signal amplification in techniques such as surface-enhanced Raman spectroscopy (SERS), electrochemical biosensors, and immunosensors. Special attention is given to how synthesis strategies, including chemical, physical, and green, affect nanoparticle uniformity, biocompatibility, and functionalization potential. The review also compares surface modification approaches, including polymer coatings for stability, aptamer/antibody conjugation for specificity, and core–shell architectures for fluorescence enhancement, highlighting their impact on biomarker detection in complex biological matrices. By critically analyzing current challenges such as aggregation, oxidation, and nonspecific binding, the paper synthesizes recent advances in antifouling strategies, scalable production, and integration of AgNPs into portable and wearable diagnostic platforms. Unlike previous reviews, this work consolidates developments across synthesis, surface chemistry, and device engineering, and provides a forward-looking perspective on multiparametric and theragnostic applications. Overall, the paper underlines the importance of multidisciplinary collaboration to accelerate the translation of AgNPs-based sensors into clinically viable POC technologies for personalized healthcare and early disease detection.
Co-Authors Dhian Eka Wijaya Edwin Permana Gultom, Ruben Aditia Indra Lasmana Tarigan Limbong, Kristina Oktavia Manullang, Susan Adventri Nainggolan, Eni Mika Agus Br Nurjamil, Dimas Setya Putri, Nazwa Dwi Ramadani, Rani Ramadhani, Fery Safitri, Ayu Nadila Satrio, Dicky Satriyuda, Rafael