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All Journal JOURNAL OF COASTAL DEVELOPMENT Jurnal Kimia Riset Indonesian Journal of Chemical Science Jurnal Penelitian Pendidikan IPA (JPPIPA) Indonesian Journal of Chemistry Dinamisia: Jurnal Pengabdian Kepada Masyarakat Martabe : Jurnal Pengabdian Kepada Masyarakat Jurnal Abdi: Media Pengabdian Kepada Masyarakat Studies in Philosophy of Science and Education PROFICIO: Jurnal Pengabdian Masyarakat Berkala Penelitian Hayati Jurnal Pijar MIPA Jurnal Ilmiah Berkala: Sains dan Terapan Kimia Unesa Journal of Chemistry Jurnal Manusia dan Lingkungan Bulletin of Chemical Reaction Engineering & Catalysis Indonesian Journal of Chemical Science Jurnal Pendidikan MIPA Folia Medica Indonesiana ABISATYA: Journal of Community Engagement
Sari Edi Cahyaningrum
Universitas Negeri Surabaya
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Economics, Econometrics & Finance Education Energy Environmental Science Health Professions Immunology & microbiology Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Neuroscience Physics Social Sciences Other

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Synthesis, Characterization, and Antibacterial Activity Test of Chitosan–Nanosilver–Black Cumin Seed Oil (Nigella sativa) Gel Preparation against Staphylococcus aureus Bacteria Mustofa, Mohammad Nurul; Cahyaningrum, Sari Edi
Jurnal Pijar Mipa Vol. 21 No. 1 (2026)
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v21i1.11306

Abstract

The skin is the outermost organ of the human body and functions as a protective barrier against environmental factors, making it susceptible to wounds caused by physical trauma and microbial infections. One pathogenic bacterium frequently associated with skin disorders such as boils, acne, and wound infections is Staphylococcus aureus. Therefore, topical formulations are required to prevent and manage infection. The combination of chitosan, nanosilver, and black cumin oil exhibits antibacterial activity and biocompatibility. This study aimed to evaluate the characteristics and antibacterial activity of a chitosan–nanosilver–black cumin oil gel against Staphylococcus aureus. The gel was formulated in five variations containing black cumin oil concentrations of 3%, 4%, 5%, 6%, and 7%. Chemical characterization was performed using Fourier Transform Infrared spectroscopy to identify functional groups, while nanosilver particle size was analyzed using a Particle Size Analyzer. Physical evaluation included a pH measurement to assess compatibility with the skin's pH. Antibacterial activity was determined by the disc diffusion method, measuring inhibition zone diameters. The Particle Size Analyzer results showed an average nanosilver particle size of 31.54 nm. FTIR analysis of the chitosan–nanosilver system confirmed the presence of O–H, N–H, C–H, and C=O functional groups, while FTIR characterization of black cumin oil confirmed the presence of functional groups associated with C–H stretching, C=O, C–O, and =C–H bending. The formulated gel exhibited a pH of 5.12–5.72, within the physiological pH range of human skin. Antibacterial testing demonstrated that inhibitory activity increased with increasing black cumin oil concentration, with the largest inhibition zone observed in the 7% formulation (21.67 mm). These findings indicate that chitosan–nanosilver–black cumin oil gel has potential for development as an antibacterial formulation.
The Practicality and Effectiveness of Integrated Augmented Reality Car Audio System Learning Modules in Vocational Education Setyono, Mohammad Iyo Agus; Nurhayati, Nurhayati; Rusimamto, Puput Wanarti; Cahyaningrum, Sari Edi
ABISATYA : Journal of Community Engagement Vol. 2 No. 1 (2024): ABISATYA: Journal of Community Engagement
Publisher : Center for Community Service and Science and Technology Marketing - The Institute for Research and Community Service Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/abisatya.v2i1.29949

Abstract

Abstract Technological developments are undergoing an increasingly rapid transformation. Revolution 4.0 which is oriented towards digitalization and IoT technology is increasingly entering the order of human life, even in all aspects of national life. Of course, the educational field needs to be able to strike a balance between the advancement of technology and the process of learning. One way is to take advantage of the existence of technology as a means of improving the quality of learning. Up until now, a lot of instructional resources and learning media have been created through cooperation with cutting-edge technology. One technology that can be implemented is augmented reality. In response to this, this research focuses on developing a car audio system learning module integrated with augmented reality in vocational education. Teachers and XII students at SMK YKP Magetan served as the study's subjects. Data were gathered using test, questionnaire, and observation techniques. 95.33% was the module validity level, according to the results. According to the study's findings, 87.67% of teachers' and students' replies to the module demonstrated practicality, which is why it was included in the very practical qualification. The effectiveness aspect showed a significant difference between the pretest and posttest results of 35 students. The results of the research show that the effectiveness of the module is 64.58%. Particularly when it comes to car audio system content, the integrated augmented reality learning module for car audio systems has a high degree of viability that makes it suitable for use in vocational education.
Co-Authors 'Aisy, Khulud Rihadatul , INSIYAH Achmad Fitriadi Akbar Adriani, Sherly Wahyu Afifah, Fifi Ahmad Rudi Setiawan Akbar Izulhaq Akbar, Achmad Fitriadi AMARIA Amaria Amaria Amaria Amaria Amaria Amaria Amaria Amaria Andhega Wijaya Andika Pramudya Wardana Angelo Ranamanggala, Jonathan Arie Wardhono Astuti, Tsani Browi Nugroho Dewi Saputri, Ratih Dewi, Eryantika Cipta Dewinta Intan Laily Dharmawan, Anggi Putra Dina Kartika Maharani Dina Kartika Maharani DINA KARTIKA MAHARANI Dina Kartika Maharani ERIN WARDIANA, APRITA Eryantika Cipta Dewi Fadila, Syananda Zahra Fatma Listiandari, Intan Fifi Afifah Filza Qurrota 'Aini Fitriari Izzatunnisa Muhaimin Fitriari Izzatunnisa Muhaimin Hanifa Rachmah Kamila Hasanah Jusman, Nur Heryastuti, Nuniek I GUST MADE SANJAYA ILHAM FADILA RAMADHAN, MUHAMAD Indah Ardiningsih Indira Dwi Aulia ISNAWATI Jonathan Angelo Ranamanggala Lawarti, Riska Amelia Lazuardi, Gilang Pandu Leny Yuanita Leny Yuanita Lestari, Nanda Revita Dwi Lindawati, Zeti Luklukul Fitriyah Madaniyah, Safira Marena, Betari Maria Monica Sianita Maria Monica Sianita Maya Dany Puspitasari Mohammad As'ad Rosyadi Mudasir Mufarrihul Hazin Muhaimin, Fitriari Izzatunnisa Muhammad Amar Muhammad Turhan Yani MUSLIMIN IBRAHIM Mustaji Mustaji Mustaji Mustaji, Mustaji Mustofa, Mohammad Nurul N Narsito Nabil Nazhif Fikri Ahmad Nanda Onky Stefani Narsito Narsito Narsito Narsito Narsito Narsito Narsito Narsito Naw, Sin War Nita Kusumawati Novita Listiyani Nuniek Herdyastuti Nuniek Herdyastuti Nuniek Herdyastuti Nuniek Herdyastuti Nuniek Heryastuti Nur Qomariah Nurhayati Nurhayati Nurhayati Nurhayati Nurrohman Sidiq, Muhammad Nurtikasari, Ayu Wika Nurul Hidajati NURUL HIDAJATI Oce Wiriawan Perintis Gita Susanti Prima Retno Wikandari Puput Wanarti Rusimamto Purnamasari, Amalia Putri Rachma Indrarini Ratih Dewi Saputri Riska Amelia Lawarti Rudi Setiawan, Ahmad Rudiana Agustini Rudiana Agustini Rusmini Rusmini Rusmini Rusmini Rusmini Rusmini Sabirin Matsjeh Safira Madaniyah Satriawan, Muhammad Setiawan, Ahmad Rudi Setyono, Mohammad Iyo Agus Shifa Fauziyah Shifa Fauziyah Sin War Naw Soraya, Fathimah Sri Abidah Suryaningsih Sri Juari Santoso Sri Juari Santoso Sri Juari Santoso Sri Juari Santoso Sri Juari Santoso Sukarmin Sutoyo, Suyatno Suwandi, Sukma Yanti Putri Ayu Syananda Zahra Fadila Teguh Hari Sucipto, Teguh Hari Titik Taufikurohmah Titik Taufikurohmah Titik Taufikurrohmah Titik Taufikurrohmah Tri Joko Raharjo TUKIRAN Tukiran Tukiran Wahyudi, Ainaia Deaqiila Wijayanti, Alvia Rachma Yasfin Shafa Nurulisia Yossy Nur Annisa