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All Journal JUITA : Jurnal Informatika Jurnal Ilmu Fisika
Dinny Fauziah
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Astronomy Computer Science & IT Earth & Planetary Sciences Materials Science & Nanotechnology Physics

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Pengembangan Media Pembelajaran Digital Mata Kuliah Geografi Perkotaan dalam Peningkatan Motivasi Belajar Mahasiswa Suwarsito Suwarsito; Sutomo Sutomo; Dinny Fauziah
JUITA : Jurnal Informatika JUITA Vol. 1 Nomor 3, Mei 2011
Publisher : Department of Informatics Engineering, Universitas Muhammadiyah Purwokerto

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1398.778 KB) | DOI: 10.30595/juita.v1i3.437

Abstract

The research was motivated by a lack of enthusiasm for learning for students because the delivery of course material which is considered boring by conventional delivery methods without any variation. Based on the reason in this study developed a computer-based digital learning media for Urban Geography course material which is a type of development research. The result of this research is that the media is easy to use learning and increased student motivation to learn which is expressed by 97.67% of the students.
Freeze-Thawed PVA Hydrogel Loaded by Morinda Citrifolia L. Leaves Extract with Physical and In-Vitro Antibacterial Properties Kusjuriansah, Kusjuriansah; Mufti, Ade; Nilva Tulhana, Fauzah; Fauziah, Dinny
Jurnal Ilmu Fisika Vol 17 No 1 (2025): March 2025
Publisher : Jurusan Fisika FMIPA Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jif.17.1.63-77.2025

Abstract

Morinda citrifolia L. leaves extract (MCLE) has been used as a medical material because of its antibacterial properties. Hydrogels synthesized from polyvinyl alcohol (PVA) are known to be applicable as delivery media for antibacterial substances. This article reports using the freeze-thaw method to use PVA hydrogel as an encapsulation medium for MCLE. PVA/MCLE hydrogel was synthesized in several combinations, namely 10:0, 10:1, 10:2, 10:3, 10:4, and 10:5. The test results showed the conductivity and pH values of the precursor solution ​​increased as the extract fraction increased, but decreased in the viscosity. The hydrogel showed a morphology with increased pore size when the extract fraction in the hydrogel increased. FTIR characterization confirmed that the extract had been successfully loaded into the hydrogel. The swelling degree test of the hydrogels showed an increase for samples 10:1 to 10:3 and a decrease for samples 10:4 to 10:5. Increasing the extract fraction then resulted in a decrease in the gel fraction of the hydrogel. The antibacterial activity test confirmed that the antibacterial activity in the extract remained present after being encapsulated in the hydrogel. Thus, the addition of MCLE affects the performance of the hydrogels to be applied in the medical field.
Freeze-Thawed PVA Hydrogel Loaded by Morinda Citrifolia L. Leaves Extract with Physical and In-Vitro Antibacterial Properties Kusjuriansah, Kusjuriansah; Mufti, Ade; Nilva Tulhana, Fauzah; Fauziah, Dinny
Jurnal Ilmu Fisika Vol 17 No 1 (2025): March 2025
Publisher : Jurusan Fisika FMIPA Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jif.17.1.63-77.2025

Abstract

Morinda citrifolia L. leaves extract (MCLE) has been used as a medical material because of its antibacterial properties. Hydrogels synthesized from polyvinyl alcohol (PVA) are known to be applicable as delivery media for antibacterial substances. This article reports using the freeze-thaw method to use PVA hydrogel as an encapsulation medium for MCLE. PVA/MCLE hydrogel was synthesized in several combinations, namely 10:0, 10:1, 10:2, 10:3, 10:4, and 10:5. The test results showed the conductivity and pH values of the precursor solution ​​increased as the extract fraction increased, but decreased in the viscosity. The hydrogel showed a morphology with increased pore size when the extract fraction in the hydrogel increased. FTIR characterization confirmed that the extract had been successfully loaded into the hydrogel. The swelling degree test of the hydrogels showed an increase for samples 10:1 to 10:3 and a decrease for samples 10:4 to 10:5. Increasing the extract fraction then resulted in a decrease in the gel fraction of the hydrogel. The antibacterial activity test confirmed that the antibacterial activity in the extract remained present after being encapsulated in the hydrogel. Thus, the addition of MCLE affects the performance of the hydrogels to be applied in the medical field.
Co-Authors . Suwarsito Kusjuriansah, Kusjuriansah Mufti, Ade Nilva Tulhana, Fauzah Sutomo Sutomo