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All Journal JURNAL KIMIA SAINS DAN APLIKASI JGE (Jurnal Geofisika Eksplorasi) JFA (Jurnal Fisika dan Aplikasinya) Jurnal Sains Teknologi dan Lingkungan (JSTL) Biosaintifika: Journal of Biology & Biology Education Jurnal Abadimas Gorontalo Jurnal AbdiMas Nusa Mandiri Jurnal Altifani Penelitian dan Pengabdian kepada Masyarakat Innovation for Community Service Journal SMART: Jurnal Pengabdian Kepada Masyarakat
Patty, Philipus J.
Department Of Physics, Universitas Pattimura, Jl. Ir. M. Putuhena - Poka, Ambon 97233|Universitas Pattimura|Indonesia
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Kinetics of Formation and Characterization of Green Silver Nanoparticles of Ficus variegata Leaf Extract Synodalia C. Wattimena; Violin Ririmasse; Amos Killay; Philipus J. Patty
Jurnal Kimia Sains dan Aplikasi Vol 25, No 1 (2022): Volume 25 Issue 1 Year 2022
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (596.783 KB) | DOI: 10.14710/jksa.25.1.34-40

Abstract

This study aimed to determine the formation rate of silver nanoparticles synthesized using leaf extract of Ficus variegata and characterize their physical, chemical, and antibacterial properties against Gram-positive Staphylococcus aureus and Gram-negative Escherichia coli. For the formation rate determination, an empirical exponential model was proposed and used to fit the absorbance vs. time data (kinetics data). The surface plasmon resonance wavelength was measured using UV-Vis spectroscopy for physical and chemical characterization. The shape and size of the silver nanoparticles were characterized by transmission electron microscopy (TEM), and organic materials on the surface of the particles were identified by characterizing the associated chemical bonding using FTIR spectroscopy. For antibacterial assays, disc diffusion and spectrophotometric methods were used. The formation rates of the silver nanoparticles were 0.036 per hour or 1.0 x 10-5 s-1 (slower rate) and 0.767 per hour or 2.1 x 10-4 s-1 (faster rate). UV-Vis absorption spectrum indicated the surface plasmon resonance peak at 415 nm. Silver nanoparticles formed mainly were spherical, with a mean diameter of 26.5±0.7 nm. The FTIR spectrum indicated the presence of organic materials on the surface of the silver nanoparticles, which indicated the involvement of the extract as a reducing agent in particles formation. Antibacterial assay showed that synthesized silver nanoparticles inhibited the growth of both S. aureus and E. coli. The results from the disc diffusion method imply that the particles inhibited the growth of E. coli more effectively than S. aureus.
Properties of Bio-Silver Nanoparticles Mediated by Tuber and Leaf Extracts of Manihot esculenta Synodalia C. Wattimena; Desy A. Ayuningrum; Leonita Y. Latuasan; Efraim Samson; Philipus J. Patty
Biosaintifika: Journal of Biology & Biology Education Vol 14, No 2 (2022): August 2022
Publisher : Department of Biology, Faculty of Mathematics and Sciences, Semarang State University . Ro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v14i2.37667

Abstract

Bio-silver nanoparticle using plant extract has been the subject of many studies nowadays. Researchers use various plant extracts, especially the popular plant from their places. This study aims to synthesize AgNPs using leaf and tuber extracts of M. esculenta Crantz and to characterize their properties to be compared one to another. The characterization includes surface plasmon resonance wavelength using UV-VIS spectroscopy, the chemical bonds related to the extract on the surface of the particles using FTIR spectroscopy, shape and size of the particles using TEM, and antibacterial properties using the disc diffusion method. Each tuber and leaf extract AgNPs were formed a few minutes after mixing silver nitrate with each extract indicated by the change of the color from transparent to yellowish-brown. The color of the sample was quantified by the wavelength of surface plasmon resonance which was found to be 425 nm for tuber extract AgNPs and 430 nm for leaf extract AgNPs. The results of FTIR spectroscopy indicate the presence of the extract at the surface of nanoparticles for both samples. The particles are mostly spherical, but the diameters of the leaf extract AgNPs are relatively smaller than those of the tuber extract AgNPs. The results of antibacterial assays of both samples show that both AgNPs inhibit the growth of S. aureus as effectively as they inhibit the growth of E. coli.
Crystalline Properties of Cassava (Manihot esculenta Crantz) Starch and Its Associated Biofoam Philipus J Patty; Synodalia C Wattimena
Jurnal Fisika dan Aplikasinya Vol 19, No 2 (2023)
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat, LPPM-ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j24604682.v19i2.16576

Abstract

Making foam using starch as an alternative material to replace a conventional material, polystyrene, is one of the solutions to solve an environmental problem due to the waste of foam made from polystyrene cannot be degraded. This study aims to analyze the crystalline properties of cassava starch and biofoam made from it using X-ray diffraction (XRD) spectroscopy. From the XRD data of cassava starch, the peaks of 2θ were analyzed to determine the type of cassava starch used in this study. The index of crystallinity of both cassava starch and its associated biofoam was calculated from XRD data. XRD data of cassava starch show 4 main peaks of 2θ: 15.0◦ , 17.0◦ , 17.9◦ , and 23.0◦ , and 3 minor peaks at 11.0◦ , 20.0◦ , 26.0◦ . Based on the main peaks from this XRD data, cassava starch can be categorized as an A-type starch. For cassava starch biofoam, there is only 1 main peak of 2θ at 19.7◦ , and 5 minor peaks at 11.0◦ , 15.4◦ , 21.7◦ , 23.0◦ , and 26.4◦ . The decrease in the crystallinity from the starch to the associated biofoam is shown by the decrease in the index of crystallinity, which decreases from 41.0% in starch to 28.3% in biofoam.
IDENTIFIKASI POTENSI BIDANG GELINCIR MENGGUNAKAN METODE GEOLISTRIK DI DAERAH AMBON MALUKU Multi, Warni; Limehuwey, Resti; Patty, Philipus J; Kotarumalos, Sitti Hafsa; Ramadhan, Aditya; Sukri, M. Riswan Anas
JGE (Jurnal Geofisika Eksplorasi) Vol 10, No 1 (2024)
Publisher : Engineering Faculty Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jge.v10i1.351

Abstract

Identifikasi bidang gelincir telah dilakukan di Batu Koneng, Kota Ambon dengan menggunakan metode geolistrik konfigurasi dipole-dipole. Tujuan dilakukan penelitian ini yaitu untuk menginterpretasi lapisan batuan bawah permukaan di area penelitian melalui nilai resistivitas guna mengetahui adanya potensi bidang gelincir yang menyebabkan longsor. Data pengukuran dilakukan sebanyak 4 lintasan dengan panjang 110 m yang pengolahan datanya menggunakan software Res2Dinv. Hasil interpretasi menunjukkan bahwa di lokasi penelitian terdeteksi litologi lempung dengan variasi nilai resistivitas 8,77-24,9 Ωm. Sedangkan lapisan lain diduga sebagai batu gamping dengan variasi nilai resistivitas 23,0-70,1 Ωm. Bidang gelincir diduga berupa lapisan lempung yang terdeteksi pada semua penampang lintasan, untuk penampang 1 ditemukan pada kedalaman 1,25 m hingga 6,76 m, untuk penampang 2 ditemukan pada kedalaman 1,25 m hingga 8 m. Sedangkan pada penampang 3 pada kedalaman 1,25 m hingga 11 m dan penampang 4 menjadi lapisan yang paling dalam yaitu 1,25 m hingga 24 m.
Peningkatan Pengetahuan Tentang Mitigasi Bencana Alam Di SMA Negeri 13 Ambon Limehuwey, Resti; Patty, Philipus Josepus; Multi, Warni; Kotarumalos, Sitti Hafsa; Ramadhan, Aditya; Bahri, Samsul; Kololu, Micky; Hutagalung, Robert; Elly, Erfin
Innovation for Community Service Journal Vol 2 No 2 (2024): Oktober 2024
Publisher : Department of Chemistry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/icsj.v2i2.15081

Abstract

Kota Ambon adalah ibuktota provinsi Maluku yang sangat aktif secara tektonik karena terletak pada pertemuan lempeng tektonik. Posisi ini menjadikannya daerah yang sangat rentan terhadap berbagai jenis bencana alam. Untuk menghadapi risiko ini, maka diperlukan Pengetahuan tentang mitigasi dan dampak bencana, terutama bagi pelajar yang merupakan generasi penerus dan bagian penting dalam upaya kesiapsiagaan bencana. Kegiatan ini bertujuan untuk meningkatkan pengetahuan dan kesadaran siswa di SMA Negeri 13 Ambon mengenai mitigasi bencana alam. Tujuan spesifiknya meliputi peningkatan pemahaman siswa tentang jenis-jenis bencana yang mungkin terjadi, teknik mitigasi yang efektif, dan tindakan darurat yang perlu diambil dalam menghadapi bencana. Kegiatan ini dilakukan dengan metode ceramah/penyuluhan oleh tim dosen kepada para siswa di depan kelas. Hasil dari kegiatan ini terlihat dari antusiasme para siswa dalam mengajukan berbagai pertanyaan terkait materi yang disampaikan. Melalui kegiatan ini, diharapkan siswa di Sekolah memperoleh pemahaman yang lebih baik tentang mitigasi bencana. Tidak hanya meningkatkan kesiapsiagaan individu tetapi juga menyebarluaskan informasi ke komunitas. Upaya ini merupakan langkah penting dalam mempersiapkan generasi muda menghadapi tantangan bencana di masa depan.
PENINGKATAN PENGETAHUAN MITIGASI BENCANA ALAM DI SMA NEGERI 23 MALUKU TENGAH Multi, Warni; Limehuwey, Resti; Kotarumalos, Siti Hafsa; Patty, Philipus J; Gultom, Rimawanto; Ramadhan, Aditya
Jurnal Abdimas Gorontalo (JAG) Vol 8 No 1 (2025): Jurnal Abdimas Gorontalo (JAG), Mei 2025
Publisher : UPPM Politeknik Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30869/jag.v8i1.1439

Abstract

ABSTRAK Provinsi Maluku merupakan daerah yang secara tektonik cukup aktif di Indonesia karena diapit oleh dua lempeng tektonik. Hal ini menjadikannya rentan terhadap berbagai potensi bencana alam. Sebagai upaya penanggulangan risiko bencana, diperlukan upaya peningkatan pengetahuan terkait mitigasi bencana alam khususnya bagi pelajar tingkat menengah yang merupakan generasi penerus yang harus memiliki kesiapsiagaan terhadap bencana alam. Adapun tujuan pelaksanaan kegiatan ini adalah meningkatkan pengetahuan dan kesiapsiagaan pelajar di SMA Negeri 23 Maluku Tengah dalam mitigasi bencana alam. Kegiatan ini dilakukan dengan metode ceramah oleh tim dosen kepada para peserta di kelas. Hasil yang diperoleh dari kegiatan ini adalah tingginya antusiasme seluruh peserta yang mencapai ±85% disertai dengan pengajuan berbagai pertanyaan terkait materi yang diberikan. Kegiatan ini diharapkan mampu meningkatkan pemahaman dan kesiapsiagaan peserta tentang mitigasi bencana alam khususnya didaerah Maluku Tengah yang rentan gempa bumi dan longsor. Selain itu kegiatan ini menjadi upaya untuk menyebarluaskan informasi ke berbagai komunitas lain supaya lebih siaga menghadapi berbagai bencana alam dimasa depan yang tidak dapat diprediksi waktu kejadiannya. Kata kunci: Bencana Alam, Maluku Tengah, Mitigasi, Sekolah,Tektonik.
Synthesis of Bio-Silver Nanoparticles using Leaf Extract of Cymbopogon nardus and Examination of Their Physical and Anti-Bacterial Properties Patty, Philipus J; Wattimena, Synodalia C; Silahooy, Veince B
Jurnal Fisika dan Aplikasinya Vol 21, No 2 (2025)
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat, LPPM-ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j24604682.v21i2.19847

Abstract

In this study, antibacterial activities of bio-silver nanoparticles synthesized using leaf extract of Cymbopogon nardus against Gram-positive Staphylococcus aureus (S. aureus) and Gram-negative Escherichia coli (E. coli) were assessed. For this purpose, the disc diffusion and spectrophotometric methods were used. Before the antibacterial assessment, the physical properties of the silver nanoparticles were characterized. UV-VIS spectroscopy was used to determine the wavelength of the localized surface plasmon resonance, while FTIR was used to identify the functional group on the particles. For the shape and size distribution of the particles, TEM was used. The UV-VIS spectrum shows 435 nm as the wavelength of localized surface plasmon resonance while the FTIR spectrum indicates the presence of the extract on the surface of the particles, suggesting the action of extracts as the reducing as well as capping agents. Most of these nanoparticles observed are spherical, and their diameters vary from 7.0 nm to 31.0 nm with the mean diameter calculated to be 15.7±4.60 nm. Results from both diffusion disc and spectrophotometric methods show that the silver nanoparticles can inhibit the growth of both gram-positive (S. aureus) and gram-negative (E. coli) bacteria. In the diffusion disc method, the diameter of the inhibition zone was found to be 0,83 ± 0,03 cm for S. aureus and 0,63 ± 0,03) cm for E. coli. Statistical analysis shows no significant difference between the two. In the spectrophotometric method, the optical density of bacteria without the nanoparticles increases, while it levels off when the nanoparticles are applied. The significant difference between the two occurs 6 hours after introducing silver nanoparticles to E. coli and S. aureus. The results show that the silver nanoparticles inhibit the growth of both S. aureus and E. coli equally
PEMANFAATAN APLIKASI GEOLISTRIK UNTUK IDENTIFIKASI POTENSI AIR TANAH DI DAERAH HILLA Multi, Warni; Kotarumalos, Sitti Hafsa; Gultom , Rimawanto; Limehuwey, Resti; Patty, Philipus J
Jurnal AbdiMas Nusa Mandiri Vol. 7 No. 2 (2025): Periode Oktober 2025
Publisher : LPPM Universitas Nusa Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33480/abdimas.v7i2.7230

Abstract

Hilla, located in Central Maluku Regency, boasts a gently sloping to steep topography. Extensive green plantations dominate the region. However, water resources, a primary need for the community and agricultural land, remain an unresolved challenge. This community service activity was conducted to assess the potential of groundwater in the Hilla area and provide a basis for effective management. Therefore, geophysical applications, specifically geoelectricity, were utilized to identify potential rock aquifers for groundwater storage. The potential aquifer, based on 2D resistivity cross-section data from geoelectrical readings, was identified at the second location, at a depth of 10-15 meters, and is thought to be formed by sedimentary limestone. This interpretation offers valuable insights for the Hilla community and local government to explore and utilize groundwater resources in the surrounding area. Another positive impact is that the Hilla area can meet its need for reliable and economical groundwater sources directly within its own region, without requiring supply from nearby areas or cities. This ensures that the local community's daily activities are effectively met.
IDENTIFIKASI POTENSI BIDANG GELINCIR MENGGUNAKAN METODE GEOLISTRIK DI DAERAH AMBON MALUKU Multi, Warni; Limehuwey, Resti; Patty, Philipus J; Kotarumalos, Sitti Hafsa; Ramadhan, Aditya; Sukri, M. Riswan Anas
JGE (Jurnal Geofisika Eksplorasi) Vol. 10 No. 1 (2024)
Publisher : Engineering Faculty Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jge.v10i1.351

Abstract

Identifikasi bidang gelincir telah dilakukan di Batu Koneng, Kota Ambon dengan menggunakan metode geolistrik konfigurasi dipole-dipole. Tujuan dilakukan penelitian ini yaitu untuk menginterpretasi lapisan batuan bawah permukaan di area penelitian melalui nilai resistivitas guna mengetahui adanya potensi bidang gelincir yang menyebabkan longsor. Data pengukuran dilakukan sebanyak 4 lintasan dengan panjang 110 m yang pengolahan datanya menggunakan software Res2Dinv. Hasil interpretasi menunjukkan bahwa di lokasi penelitian terdeteksi litologi lempung dengan variasi nilai resistivitas 8,77-24,9 Ωm. Sedangkan lapisan lain diduga sebagai batu gamping dengan variasi nilai resistivitas 23,0-70,1 Ωm. Bidang gelincir diduga berupa lapisan lempung yang terdeteksi pada semua penampang lintasan, untuk penampang 1 ditemukan pada kedalaman 1,25 m hingga 6,76 m, untuk penampang 2 ditemukan pada kedalaman 1,25 m hingga 8 m. Sedangkan pada penampang 3 pada kedalaman 1,25 m hingga 11 m dan penampang 4 menjadi lapisan yang paling dalam yaitu 1,25 m hingga 24 m.
Peningkatan Literasi Digital dengan Libre Office di SMA Negeri 3 Ambon Limehuwey, Resti; Kotarumalos, Sitti Hafsa; Patty, Philipus Josepus; Multi, Warni; Uzda, Rabiyatul; Kololu, Micky; Hutagalung, Robert
SMART: Jurnal Pengabdian Kepada Masyarakat Vol 5, No 2 (2025): Oktober
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Negeri Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35580/smart.v5i2.76458

Abstract

Perkembangan teknologi digital menuntut peserta didik dan tenaga pendidik di jenjang menengah untuk memiliki literasi digital yang baik. Kegiatan pengabdian ini dilaksanakan di SMA Negeri 3 Ambon dengan tujuan meningkatkan literasi digital melalui pengenalan penggunaan LibreOffice, sebuah perangkat lunak open source yang gratis dan legal. Metode pelaksanaan menggunakan pendekatan partisipatif dan edukatif, yang terdiri dari tahap persiapan, pelaksanaan, serta evaluasi dan tindak lanjut. Kegiatan ini mendapat respons positif, terlihat dari antusiasme peserta selama sesi pemaparan dan diskusi. Sebagai bentuk evaluasi, peserta mengisi kuesioner untuk mengukur tingkat pemahaman. Hasil menunjukkan bahwa pemahaman peserta terhadap materi mencapai 65,7%, tergolong dalam kategori cukup baik. Pernyataan nomor 3 memperoleh skor rata-rata tertinggi (3,34), sedangkan pernyataan nomor 4 dan 6 memiliki skor terendah (2,51), yang menunjukkan bahwa aspek waktu dan minat terhadap penggunaan LibreOffice masih perlu ditingkatkan.
Co-Authors Aditya Ramadhan Amos Killay Desy A. Ayuningrum Efraim Samson Elly, Erfin Gultom , Rimawanto Gultom, Rimawanto Kololu, Micky Kotarumalos, Siti Hafsa Kotarumalos, Sitti Hafsa Leonita Y. Latuasan Multi, Warni Rabiyatul Uzda Ramadhan, Aditya Resti Limehuwey, Resti Robert Hutagalung Samsul Bahri Silahooy, Veince B Sukri, M. Riswan Anas Synodalia C Wattimena Synodalia C. Wattimena Synodalia C. Wattimena Violin Ririmasse Wattimena, Synodalia Wattimena, Synodalia C