Background Peri-implantitis caused by bacterial colonization is a primary factor in orthodontic miniscrew failure. This study evaluated the antibacterial activity, biocompatibility, and surface characteristics of Loligo-derived chitosan coatings on orthodontic miniscrews. Methods Chitosan was extracted and applied to miniscrews using a dip-coating method. Surface morphology and elemental composition were assessed using Fourier-transform infrared spectroscopy, scanning electron microscopy, and energy-dispersive x-ray spectroscopy. The antibacterial activity against Streptococcus mutans was evaluated through inhibition zone, minimum inhibitory concentration, and minimum bacterial concentration tests. Cytotoxicity was tested on NIH/3T3 fibroblasts. Molecular docking was used to analyze the interactions of glucosamine with S mutans glucansucrase and FimA proteins. Results Fourier-transform infrared spectroscopy confirmed functional groups characteristic of chitosan. Scanning electron microscopy revealed a rough and porous surface after coating, whereas energy-dispersive x-ray spectroscopy revealed increased carbon and oxygen content. Coated miniscrews showed significantly greater inhibition zones and lower minimum inhibitory concentration and minimum bacterial concentration values than uncoated screws, with no significant cytotoxicity. Docking analysis indicated strong binding of glucosamine to glucansucrase (−4.9 kcal/mol) and moderate binding to FimA (−3.1 kcal/mol). Conclusions Loligo-derived chitosan coatings enhance the antibacterial properties of orthodontic miniscrews while maintaining biocompatibility, offering a potential and sustainable strategy for reducing the risk of peri-implantitis.
Keterbatasan penyediaan air bersih akibat rendahnya kualitas pasokan listrik menjadi permasalahan utama yang dihadapi SMK Darul Ijtihad Sampang sebagai sekolah berasrama. Pompa air yang digunakan hanya dapat beroperasi secara optimal pada pagi hari ketika tegangan listrik PLN stabil, sehingga ketersediaan air tidak mampu memenuhi kebutuhan siswa sepanjang hari. Kegiatan pengabdian kepada masyarakat ini bertujuan mengoptimalkan penyediaan air bersih melalui penerapan sistem pompa air tenaga surya sebagai sumber energi alternatif yang lebih andal. Metode pelaksanaan menggunakan pendekatan partisipatif yang meliputi identifikasi permasalahan, perencanaan sistem, penerapan pompa air tenaga surya, pendampingan, monitoring, evaluasi, dan keberlanjutan program dengan melibatkan guru dan siswa sebagai mitra. Hasil kegiatan menunjukkan bahwa sistem pompa tenaga surya mampu meningkatkan waktu operasional pompa dari sekitar 3 jam menjadi 10–11 jam per hari, meningkatkan volume air menjadi lebih dari 6 m³ per hari, serta menyediakan air secara berkelanjutan dari pagi hingga sore hari. Penerapan teknologi ini juga mengurangi ketergantungan terhadap pasokan listrik PLN dan meningkatkan pemahaman warga sekolah mengenai pemanfaatan energi terbarukan. Program ini memberikan dampak positif terhadap kontinuitas penyediaan air bersih, mendukung aktivitas sanitasi siswa, serta menjadi model penerapan teknologi tepat guna yang berpotensi direplikasi pada sekolah berasrama dengan permasalahan serupa.
Occupational safety in mining environments remains a significant concern, particularly among informal workers such as porters who often lack adequate first aid knowledge and skills. This community service program aimed to improve the competency of porters in handling emergency situations through first aid (P3K) training based on the Asset-Based Community Development (ABCD) approach. The program was conducted in Jember from April 10 to April 15, 2026, involving active porters working in mining areas. The implementation consisted of several stages, including asset identification, needs assessment, training design, and participatory learning activities such as lectures, demonstrations, and simulation-based practice. Data were collected using pre-test and post-test instruments as well as observational assessments of practical skills. The results showed a significant improvement in participants’ knowledge, indicated by an increase in the average score from 62 (pre-test) to 88 (post-test). In addition, participants demonstrated improved practical skills and greater confidence in performing first aid procedures during simulation sessions. The application of the ABCD approach contributed to active participation and effective utilization of local assets, enhancing the overall impact of the program. In conclusion, the training program proved to be effective in strengthening both knowledge and skills, while also fostering a safety-oriented culture among porters in mining communities. This approach is recommended for broader implementation in similar high-risk occupational settings.
This study aims to analyze the implementation of collaborative governance in the context of developing marine ecotourism on the Pulau Merah Coast of Banyuwangi Regency, Indonesia. Specifically, it focuses on evaluating the dynamic collaboration processes among stakeholders and identifying the key elements of successful and sustainable ecotourism development through this multi-stakeholder approach. The research employed a qualitative method using a descriptive approach. Primary data was gathered through semi-structured interviews with key informants representing government, private sector, and community groups, as well as via field observations. Secondary data was sourced from relevant documents and reports. The collected data was analyzed using an interpretive process of thematic categorization and comparison. The findings highlight that collaborative governance at Pulau Merah involves complex, non-linear dynamics. Key discussion results indicate that initial drivers like leadership, pre-history of cooperation, and perceived interdependency significantly initiate the collaboration process. However, the study identifies critical bottlenecks within the formal process itself, particularly challenges in maintaining ongoing dialogue among stakeholders with divergent interests, ensuring full commitment to shared goals, and establishing intermediate-term indicators for transparent monitoring. The results emphasize that overcoming these process-oriented challenges is crucial for transitioning from initial collaboration stages to long-term, tangible impacts.
The blue economy has become a central policy framework for promoting sustainable use of coastal and marine resources, yet its implementation is often constrained by centralized and sectoral governance that fails to address local socio-ecological conditions in coastal areas. This study examines how village-level legal instruments can function as effective governance mechanisms for advancing coastal conservation, strengthening community resilience, and operationalizing blue economy principles at the local scale. Using a socio-legal and multi-level governance approach, this research draws on legal and policy analysis, field observations, semi-structured interviews, and focus group discussions conducted in three coastal villages in Gresik Regency, Indonesia. The analysis focuses on how village regulations are formulated, how they structure institutional roles, and how they integrate conservation objectives with local economic activities such as mangrove-based ecotourism, fisheries, and village-owned enterprises. The findings show that village regulations play a critical role in translating national blue economy and coastal management policies into locally enforceable conservation and governance practices. By legally embedding sustainability principles, participatory mechanisms, and ecosystem-based zoning into village rules, these regulations enhance protection of coastal ecosystems, support equitable benefit sharing, and strengthen institutional dimensions of coastal resilience. However, their effectiveness depends on legal harmonization with higher-level spatial planning and adequate institutional capacity at the village level. This study contributes to coastal conservation and governance scholarship by demonstrating how village-level legal frameworks can function as adaptive and scalable instruments for integrating conservation and development in coastal communities. The village-based regulatory model proposed offers policy-relevant insights for decentralized coastal states seeking to strengthen blue economy implementation while safeguarding fragile coastal ecosystems.
