cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
-
Contact Email
-
Phone
-
Journal Mail Official
-
Editorial Address
-
Location
Kab. sleman,
Daerah istimewa yogyakarta
INDONESIA
Indonesian Journal of Chemistry
Published by Universitas Gadjah Mada
ISSN : 14119420     EISSN : 24601578     DOI : -
Core Subject : Science, Engineering,
Chemical Engineering, Chemistry & Bioengineering Chemistry
Indonesian Journal of Chemistry is an International, peer-reviewed, open access journal that publishes original research articles, review articles, as well as short communication in all areas of chemistry including applied chemistry. The journal is accredited by The Ministry of Research, Technology and Higher Education (RISTEKDIKTI) No : 21/E/KPT/2018 (in First Rank) and indexed in Scopus since 2012. Since 2018 (Volume 18), Indonesian Journal of Chemistry publish four issues (numbers) annually (February, May, August and November).
Arjuna Subject : -
Articles 25 Documents
 1   2   3 
Search results for , issue "Vol 24, No 3 (2024)" : 25 Documents clear
In Silico Study of Aptamer Specificity for Detection of Insulin as Development for Diabetes Mellitus Diagnosis Mulyani, Dinda Exelsa; Maksum, Iman Permana; Yusuf, Muhammad
Indonesian Journal of Chemistry Vol 24, No 3 (2024)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijc.91602

Abstract

Diabetes mellitus (DM) is a metabolic disorder characterized by elevated blood glucose levels. There are 2 types of DM where molecular-level diagnosis becomes very important because both have different treatments to avoid treatment errors. An electrochemical aptasensor as a type 2 DM detector with insulin target has been developed. This study aims to determine the interaction and specificity based on the values of RMSD, RMSF, and binding energy between aptamer and insulin when it reaches stability in silico compared to HbA1c and glucose. Docking simulations were performed on the HDOCK webserver and dynamics simulations for 1000 ns on the aptamer and protein molecular models used. The simulation results were analyzed to see the stability and visualized using VMD to see the conformation of the aptamer-ligand complex. The docking result showed higher binding energy between aptamer-insulin compared to other molecules, namely −221.87 kcal/mol. The results of RMSF and RMSD analysis of molecular dynamics simulations show that the system is stable, has the best binding energy value of −9.9510 kcal/mol. The aptamer complex with insulin showed better specificity compared to glucose and HbA1c based on RMSD, RMSF, and binding energy.
The Potential Perspective of Processing Rice Husk as SiO2 Source to Tetraalkoxysilane in Indonesia Wahyudianto, Benny; Putro, Wahyu Saptrio; Nguyen, Thuy Thi Hong; Fukaya, Norihisa; Kataoka, Sho
Indonesian Journal of Chemistry Vol 24, No 3 (2024)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijc.92862

Abstract

Tetra-alkoxysilane (TROS) is one of the useful chemicals and it can be processed to produce semiconductor and photovoltaic devices. Now, the transformation of silica (SiO2) to TROS is garnering interest due to the potential of extracting it from biomass. As the 14th largest country, Indonesia possesses an abundant source of SiO2 from mining activities and agricultural waste, notably rice husk (RH). However, only a little concrete action is planned for leveraging RH into a more valuable industrial substance. This review will explain two routes for TROS—conventional and direct—comparing their respective benefits and drawbacks. Additionally, it presents a simulation of various scenarios for scaling TROS production to an industrial level, considering technoeconomic and environmental assessment aspects. The focus then shifts to Indonesia’s strategic trajectory for 2045, offering recommendations to enhance resource utilization for economic and national development.
Pseudoternary Phase Diagram and Antibacterial Activity of Microemulsion-Based Citronella Oil Gunarto, Chintya; Go, Alchris Woo; Angkawijaya, Artik Elisa; Lie, Jenni; Soetaredjo, Felycia Edi; Ismadji, Suryadi; Puspitasari, Nathania; Putro, Jindrayani Nyoo; Risdian, Chandra
Indonesian Journal of Chemistry Vol 24, No 3 (2024)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijc.93250

Abstract

Citronella oil (CTO) is extracted from citronella leaves by maceration or steam distillation process, which has antibacterial and insect-repellent activities. However, the use of CTO is limited and requires modification in other formulations, such as microemulsion (ME), to increase its bioactivities. ME consists of oil, water, surfactant and/or cosurfactant and is commonly applied in food and beverages, cosmetics, and carrier for drug delivery applications. CTO was used as the oil phase for ME with nonionic surfactant and ethanol as a cosurfactant for lowering interfacial tension between oil and water phase. Subsequent observations regarding stability and antibacterial tests were carried out on ME formulations with surfactant/cosurfactant mixture of 2 due to its largest ME area. A hydrodynamic diameter analysis was also carried out to see the stability of the ME within a period of 50 d. ME with 10% CTO, 30% surfactant mixture, and 60% water showed the best formulation observed from the consistent hydrodynamic diameter measurement. In addition, ME with different formulations could inhibit the growth of Escherichia coli and Staphylococcus aureus by more than 90%. From this research, CTO-based ME potentially improve and develop drug carrier applications, especially via topical route.
Synthesis, Characterization, and Antibacterial Activity of Plant-Derived Zinc Oxide Nanostructure Using Lavandula angustifolia and Phyllanthus niruri Extracts Fakhirah, Dhiya; Magfira, Tya Aisha; Hutama, Aulia Sukma; Septama, Abdi Wira; Maryani, Faiza; Krismastuti, Fransiska Sri Herwahyu
Indonesian Journal of Chemistry Vol 24, No 3 (2024)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijc.93293

Abstract

In recent years, green synthesized nanomaterials have garnered wide interest due to its inherent features like rapidity, cost-effectiveness, and environmentally friendly technique. The green synthesis of Zinc oxide nanostructures (n-ZnO) using two kinds of plant extract, lavender (Lavandula angustifolia) and meniran (Phyllanthus niruri), were discussed and their antibacterial activities were compared. Characterization by means of X-ray diffraction (XRD), Fourier transform infrared (FTIR), and field emission-scanning electron microscopy/energy dispersive X-ray spectroscopy (FE-SEM/EDS) were used to confirm the successful formation of n-ZnO using both plant extracts. The antibacterial activity of the n-ZnO synthesized from two different plant extracts was tested against Klebsiella pneumoniae and methicillin-resistant Staphylococcus aureus (MRSA). The results show that both n-ZnO has antibacterial activity against MRSA. Minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) values for n-ZnO synthesized from meniran extract were 78 and 156 mg/mL, respectively, while MIC and MBC values for n-ZnO synthesized from lavender extract were 156 and 312 mg/mL, respectively. These results confirm that the n-ZnO prepared from meniran extract is more effective in inhibiting MRSA than the n-ZnO prepared from lavender extract. This study proves that plant-based n-ZnO has anti-microbial activities and may serve as antimicrobial therapeutics.
Kinetics and Thermodynamics Study of Ammonia Leaching on Spent LMR-NMC Battery Cathodes Perdana, Indra; Rahman, Muhammad Irfan; Aprilianto, Doni Riski; Petrus, Himawan Tri Bayu Murti; Kinanti, Divita Hayyu
Indonesian Journal of Chemistry Vol 24, No 3 (2024)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijc.93312

Abstract

The recycling of spent lithium NMC-type batteries, widely used in electric vehicles, presents a challenge due to manganese content, which complicates metal separation and purification. This study explored a selective leaching process using ammonia to recover metals from high-manganese-content LMR-NMC cathodes. By adjusting the (NH4)2SO4 reagent concentration to 1–2 M and maintaining the temperature between 50–80 °C, the recovery rates of lithium, nickel and cobalt metals were enhanced, leaving manganese primarily as residue in the form of Mn(OH)₂ and (NH4)2Mn(SO4)2. A kinetics model, integrating an equilibrium-shrinking core model with a modified temperature-dependent Arrhenius approach, accurately simulates the metal recovery. The activation energies of the forward leaching reactions of Li, Ni, and Co were respectively (1.4331±0.0036)×105, (1.5494±0.0034)×105, and (1.5743±0.0040)×105 J/mol, while those for the backward reactions were (5.3307±0.0041)×105, (2.4753±0.0093)×105, and (1.6289±0.0092)×105 J/mol, respectively. The leaching mechanism was found to be exothermic, which allows maximum recovery at low temperatures. The findings highlight ammonia’s effectiveness as a selective leachant, significantly reducing manganese in the leaching solution, and streamlining nickel and cobalt separation, thus enhancing the recycling process’s efficiency and sustainability.

Page 3 of 3 | Total Record : 25

 1   2   3 

Filter by Year

2024 2024


Reset
Filter By Issues
All Issue Vol 26, No 1 (2026) Vol 25, No 5 (2025) Vol 25, No 4 (2025) Vol 25, No 3 (2025) Vol 25, No 2 (2025) Vol 25, No 1 (2025) Vol 24, No 6 (2024) Vol 24, No 5 (2024) Vol 24, No 4 (2024) Vol 24, No 3 (2024) Vol 24, No 2 (2024) Vol 24, No 1 (2024) Vol 23, No 6 (2023) Vol 23, No 5 (2023) Vol 23, No 4 (2023) Vol 23, No 3 (2023) Vol 23, No 2 (2023) Vol 23, No 1 (2023) Vol 22, No 6 (2022) Vol 22, No 5 (2022) Vol 22, No 4 (2022) Vol 22, No 3 (2022) Vol 22, No 1 (2022) Vol 22, No 2 (2022) Vol 21, No 6 (2021) Vol 21, No 5 (2021) Vol 21, No 4 (2021) Vol 21, No 3 (2021) Vol 21, No 2 (2021) Vol 21, No 1 (2021) Vol 20, No 6 (2020) Vol 20, No 5 (2020) Vol 20, No 4 (2020) Vol 20, No 3 (2020) Vol 20, No 2 (2020) Vol 20, No 1 (2020) Vol 19, No 4 (2019) Vol 19, No 3 (2019) Vol 19, No 2 (2019) Vol 19, No 1 (2019) Vol 18, No 4 (2018) Vol 18, No 3 (2018) Vol 18, No 2 (2018) Vol 18, No 1 (2018) Vol 17, No 3 (2017) Vol 17, No 2 (2017) Vol 17, No 1 (2017) Vol 16, No 3 (2016) Vol 16, No 2 (2016) Vol 16, No 1 (2016) Vol 15, No 3 (2015) Vol 15, No 2 (2015) Vol 15, No 1 (2015) Vol 14, No 3 (2014) Vol 14, No 2 (2014) Vol 14, No 1 (2014) Vol 13, No 3 (2013) Vol 13, No 2 (2013) Vol 13, No 1 (2013) Vol 12, No 3 (2012) Vol 12, No 2 (2012) Vol 12, No 1 (2012) Vol 11, No 3 (2011) Vol 11, No 2 (2011) Vol 11, No 1 (2011) Vol 10, No 3 (2010) Vol 10, No 2 (2010) Vol 10, No 1 (2010) Vol 9, No 3 (2009) Vol 9, No 2 (2009) Vol 9, No 1 (2009) Vol 8, No 3 (2008) Vol 8, No 2 (2008) Vol 8, No 1 (2008) Vol 7, No 3 (2007) Vol 7, No 2 (2007) Vol 7, No 1 (2007) Vol 6, No 3 (2006) Vol 6, No 2 (2006) Vol 6, No 1 (2006) Vol 5, No 3 (2005) Vol 5, No 2 (2005) Vol 5, No 1 (2005) Vol 4, No 3 (2004) Vol 4, No 2 (2004) Vol 4, No 1 (2004) Vol 3, No 3 (2003) Vol 3, No 2 (2003) Vol 3, No 1 (2003) Vol 2, No 3 (2002) Vol 2, No 2 (2002) Vol 2, No 1 (2002) Vol 1, No 3 (2001) Vol 1, No 2 (2001) Vol 1, No 1 (2001) ARTICLE IN PRESS Article in press More Issue