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All Journal Reaktor JURNAL KIMIA SAINS DAN APLIKASI Indonesian Journal of Mathematics and Natural Sciences Indonesian Journal of Chemical Science Indonesian Journal of Chemistry Acta Chimica Asiana Jurnal Pengabdian Kepada Masyarakat (JPKM) Tabikpun Greensphere: Journal of Environmental Chemistry Analit: Analytical and Environmental Chemistry
Retno Ariadi Lusiana
Department Of Chemistry, Faculty Of Mathematics And Natural Sciences, Universitas Diponegoro, Jl. Prof. Soedarto, Tembalang Semarang 50275
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Education Energy Engineering Health Professions Materials Science & Nanotechnology Mathematics

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Development and Characterization of a Chitosan and Polyvinyl Alcohol (CS/PVP)-Based Slow-Release Urea Fertilizer Membrane Retno Ariadi Lusiana; Khabibi Khabibi; Rahmad Nuryanto; Muhammad Ridho Shofwan Al Aziz
Jurnal Kimia Sains dan Aplikasi Vol 27, No 10 (2024): Volume 27 Issue 10 Year 2024
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jksa.27.10.470-476

Abstract

A slow-release test of urea fertilizer was conducted using chitosan-urea (CS-U) and chitosan/polyvinyl pyrrolidone K30-urea (CS/PVP-U) membranes. The urea membrane synthesis involved a blending method, with PVP K30 added as a component. The slow-release capabilities of CS-U, CS/PVP1-U, CS/PVP2-U, CS/PVP3-U, and CS/PVP4-U membranes were compared. FTIR results showed an increased intensity of the primary NH double peak at 1587 cm-1 and 1640 cm-1, while the C=O spectrum shifted from 1640 to 1647 cm-1 and the -OH group from 3354 cm-1 to 3362 cm-1, indicating hydrogen bond formation in CS/PVP-U. XRD analysis confirmed the membrane’s amorphous structure, and FE-SEM and AFM studies revealed morphology and roughness differences, with CS/PVP4-U having the largest cross-sectional diameter. The release study showed that PVP-modified chitosan membranes increased urea release, achieving 60 ppm/2 days for the first 16 days, then decreasing to about 55 ppm through day 30, with partial urea release controlled over time. This suggests that SRF fertilizer can effectively control urea release into the environment.
Sintesis dan Karakterisasi Komposit Selulosa Bakteri dengan Grafit dan TiO2-ZnO: Structural and Functional Analysis Fariz Nafiir, Muhammad; Sudirman; Yuanita, Emmy; Arshad, Sazmal E.; Lusiana, Retno Ariadi; Ulfa, Maria
Acta Chimica Asiana Vol. 7 No. 2 (2024)
Publisher : The Indonesian Chemical Society, Chapter Nusa Tenggara and The University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/aca.v7i2.204

Abstract

This research aims to synthesize and characterize a bacterial cellulose (BC)-based composite with graphite and TiO2-ZnO as reinforcement materials using ex-situ synthesis with CTAB as a surfactant. FTIR and SEM-EDS analysis revealed interactions between the matrix and the reinforcement materials, as well as irregular particle distribution in the BC/G-TiO2-ZnO composite. The addition of graphite to BC significantly increased the conductivity of the composite, while the addition of TiO2-ZnO had the opposite effect. The mechanical properties of the composite exhibited an inverse relationship with the conductivity parameter. Swelling tests indicated that pH and the addition of CTAB influenced the swelling behavior of the BC-based composite. The results of this study provide a strong foundation for the development of potential applications in the fields of electronics and pollutant filtration. The synthesis of this composite aims to harness the unique properties of BC, graphite, and TiO2-ZnO, creating a multifunctional material with potential uses in flexible electronics, sensors, biocompatible conductive materials, and advanced filtration systems.
Optimization of Chitosan-PEG/ZnO Hydrogel Formulation with Pomegranate Peel Extract as an Alternative for Wound Healing Assauqi, Niamul Faza; Lusiana, Retno Ariadi; Masruchin, Nanang
Indonesian Journal of Chemistry Vol 25, No 3 (2025)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijc.105215

Abstract

A chitosan-zinc oxide (ZnO)/poly(ethylene glycol) (PEG)/pomegranate peel extract (PE) based hydrogel has been developed as a potential material to accelerate the wound healing process by controlling the drug release mechanism. ZnO nanoparticles with an average size of about 95 nm were synthesized using the coprecipitation method and then combined into chitosan/PEG composites to improve the antimicrobial properties of the hydrogels. Characterization of the hydrogels included analysis of size, morphology, elemental composition, microstructure, swelling behavior, antibacterial activity, and wound healing effectiveness. The results of the in vitro study indicated that the antibacterial activity of PE-containing hydrogel against Escherichia coli and Staphylococcus aureus decreased due to the chelation effect caused by PE addition. However, in vivo tests for 10 d showed that the PE-containing hydrogel had better wound healing ability than commercial betadine. In addition, the developed hydrogel showed high biocompatibility with excellent antibacterial activity. This study confirmed that chitosan/PEG/ZnO nanoparticle hydrogel has the potential as wound dressing materials with sustained drug release and optimal healing effectiveness.
Pembuatan Eco-enzyme Berbasis Limbah Rumah Tangga pada Pondok Pesantren untuk Mencapai Sustainable Development Goals Christwardana, Marcelinus; Lusiana, Retno Ariadi; Suyati, Linda; Gunawan, Gunawan; Widodo, Didik Setiyo
Jurnal Pengabdian Kepada Masyarakat (JPKM) TABIKPUN Vol. 5 No. 3 (2024)
Publisher : Faculty of Mathematics and Natural Sciences - Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jpkmt.v5i3.170

Abstract

Pondok pesantren memiliki karakteristik khusus dalam sistem pendidikan. Salah satu program tersebut adalah pelatihan wirausaha, yang bertujuan untuk membekali santri dengan keterampilan berwirausaha guna mendukung kemandirian mereka di masyarakat. Artikel ini membahas implementasi workshop pembuatan eco-enzyme di Pesantren Al-Mahbubiyah, Gamping Sleman, yang terbukti efektif dalam memberikan pengetahuan dan keterampilan kepada santri. Workshop ini memberikan pengalaman langsung kepada santri melalui praktek yang dipandu oleh fasilitator berpengalaman dan dilengkapi dengan sesi tutorial untuk memperkuat pemahaman mereka. Keseluruhan kegiatan ini berkontribusi positif dalam meningkatkan keterampilan santri dalam pembuatan eco-enzyme. Upaya ini diharapkan dapat meningkatkan kesadaran dan keterampilan dalam pengelolaan lingkungan, memberikan dampak signifikan bagi keberlanjutan lingkungan dan kesejahteraan masyarakat.
Co-Authors Abdul Haris Abdul Haris Agung Abadi Kiswandono Ahmad Suseno Alinda Megagita Nurratri Anggun Yuliani Anugrah Ricky Wijaya Arshad, Sazmal E. Assauqi, Niamul Faza Ayub Indra Ayub Indra Cahyaning Gesti Faradina Choiril Azmiyawati Diana Pratiwi Rusendi Didik Setiyo Widodo Didik Setyo Widodo Dilla Dayanti Dwi Siswanta Dwi Siswanta Emmy Yuanita Fariz Nafiir, Muhammad Fathur Al Baani Fitra Nilla Sari Ginanjar Argo Pambudi Gunawan Gunawan Gunawan Gunawan Gunawan Gunawan Hasan Muhtar Ikhsan, Tauhid Nur Jumina Jumina khabibi Khabibi Linda Suyanti Linda Suyati M. Cholid Djunaidi Marcelinus Christwardana Maria Ulfa Mei Viantikasari Mohd Hafiz Dzarfan Othman Mohd Hafiz Dzarfan Othman Mudasir Mudasir Muh Jufri Muhamad Abduh Hasibuan Muhammad Cholid Djunaidi Muhammad Ridho Shofwan Al Aziz Nabila Iftinan Sari Nanang Masruchin Nanik Wijayanti Nor Basid Adiwibawa Prasetya Nor Basid Adiwibawa Prasetya Nurwarrohman Andre Sasongko Nurwarrohman Andre Sasongko Nurwarrohman Andre Sasongko Pardoyo Pardoyo Parsaoran Siahaan Parsaoran Siahaan Pratama J. Wibawa Rahma Wahyu Widyastuti Rahmad Nuryanto Rahmad Nuryanto Ratu Yulia Akhsanti Resa Putri Sherina Riska Nurfida Annisa Riska Nurfirda Annisa Saputry, Agriccia Pangestica Shihandhanu Primadian Taqwa SRI ISDADIYANTO Sri Juari Santosa Sudirman Takashi Hayashita Umi Dwijayanti Vinsencius Guntur Pandu Marcellino Vivi Dia A. Sangkota Vivi Dia Ahmad Sangkota Wahyu Putri Pranotoningtyas