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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
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Search results for , issue "Vol 24, No 5 (2024)" : 25 Documents clear
The Study of Removal of Polyvinyl Chloride (PVC) Particles from Wastewater through Electrocoagulation Ramadani, Azaria Ivana; Fardiyah, Qonitah; Rumhayati, Barlah
Indonesian Journal of Chemistry Vol 24, No 5 (2024)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijc.95589

Abstract

Plastic was produced massively, especially using polyvinyl chloride (PVC) as a raw material. Unfortunately, this condition cause affects the environment, which creates a new pollutant issue. It is essential to study the removal of PVC microplastics in current water treatment processes. The study of wastewater treatment can be achieved using electrocoagulation, which has several benefits, including low-cost, simple chemicals, and accessible equipment operation. This research investigated the study of the removal of PVC microplastics from wastewater by electrocoagulation. The new potential of the electrocoagulation technique using Al-Al electrodes was studied systematically at various variations, i.e., electrolysis time, electrolyte concentration, initial pH, coagulation speed, and electrolyte type. The results showed that the PVC microplastics removal efficiency reached 100% after electrolysis for 60 min, electrolyte concentration of 0.01 mol/L, initial pH of 7, coagulation speed of 500 rpm, the type of electrolyte used was NaCl at a flocculation speed. These optimum conditions also reduced the value of turbidity of wastewater samples from 1.39 ± 0.02 to 1.10 ± 0.05 NTU. The results of this study provide an engineering perspective in optimizing operational parameters for removing PVC microplastics in aquatic environments.
Green Synthesis of Silver Nanoparticles Using Citrus sinensis Peels Assisted by Microwave Irradiation as a Contrast Agents for Computed Tomography Imaging Fatikasari, Tanty; Nurhasanah, Iis; Khumaeni, Ali
Indonesian Journal of Chemistry Vol 24, No 5 (2024)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijc.95690

Abstract

Contrast agents are extensively used to enhance the quality of images in computed tomography (CT) scans for brain exams, vascular imaging, and full-body imaging. Recent data indicate that iodine-based contrast agents have brief durations of blood circulation and may lead to harmful toxicity effects. This study aims to produce silver nanoparticles using environmentally friendly synthesis techniques facilitated by microwaves. The characteristics of nanoparticles have been studied using UV-vis, FTIR, XRD, and TEM techniques. The TEM analysis reveals that the silver nanoparticle has an average diameter of 9 nm and exhibits a spherical shape. The contrast-to-noise ratio (CNR) values of silver nanoparticles at 100, 150, and 200 mg/L concentrations are 35.79, 48.16, and 74.66, respectively. In comparison, iodine exhibits CNR values of 28.57, 34.69, and 48.56 at the same concentrations. The CNR values for tube currents of 140, 160, and 180 mA are 37.83, 44.98, and 48.26, respectively. In contrast, the CNR values in silver nanoparticles are 63.64, 75.32, and 81.67. The results obtained from the different concentrations and tube currents clearly demonstrate that silver nanoparticles have a higher CNR than iopamidol. Hence, silver nanoparticles have significant potential as contrast agents.
Novel Benzothiazole Derivatives: Synthesis, Anticancer Activity, Density Function Theory (DFT) Study, and ADMET Prediction Abbas, Layla Jasim; Hussein, Kawkab Ali
Indonesian Journal of Chemistry Vol 24, No 5 (2024)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijc.95838

Abstract

Benzothiazole is an amazing small molecule involved in many applications in industrial and pharmaceutical industries to prepare many candidate compounds as effective drugs. In this study, we presented some derivatives of this compound that were prepared easily and quickly with the help of microwaves to minimize time, energy, and finances. The compounds’ cytotoxicity against the two cell lines SK-GT-4 and AMGM5 was examined. The cytotoxic effect of each compound at different concentrations was measured using the MTT assay. Compounds exhibited no potent cytotoxic effects toward the SK-GT-4 cell line. Compounds B1 and B2 had a high IC50 value and good growth inhibition activity against the AMGM5 cell line. According to in silico absorption, distribution, metabolism, and excretion analysis (ADME) prediction studies, the compounds B1, B2, and B3 met Lipinski and were drug-like in most physicochemical parameters. Despite some violations, generally favorable pharmacokinetic properties. It is also assumed that it can potentially become a drug candidate in the future. Various electronic parameters were examined using DFT/WB97XD/6-31++G(d,p), and studies were conducted to support the experimental findings. To estimate the binding modes of compounds B1 and B5, we also performed in silico molecular docking studies.
Microencapsulation of Chromolaena odorata Leaf Extract with Cellulose Esters for the Application as an Eco-Friendly Antibacterial Agent Ketwaraporn, Jiraporn; Pinthong, Somyod; Kerdphu, Rungnapha; Daebau, Surahani; Kraivuttinun, Parinya; Jansanthea, Pongthep
Indonesian Journal of Chemistry Vol 24, No 5 (2024)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijc.95841

Abstract

The aim of this work is to develop an eco-friendly antibacterial agent in the form of microcapsules containing extract from Chromolaena odorata leaves using the solvent evaporation method. The wall materials for encapsulating were tested with various cellulose esters including cellulose acetate (CA), cellulose acetate butyrate (CAB), and cellulose acetate propionate (CAP). The evaluation of microcapsules containing C. odorata leaf extract was focused on their encapsulation efficiency, size, shape, thermal stability, and antimicrobial activities. The results showed that CAB was a suitable wall material for the encapsulation of C. odorata leaf extract. The CAB microcapsules exhibited the highest encapsulation efficiency, which was 65.82 ± 3.07. The size of CAB microcapsules was the smallest, at 1013.3 ± 66.5 nm. According to the thermogravimetric analysis, the prepared microcapsules were able to protect the extract of C. odorata leaves from the environment. Moreover, the CAB microcapsules containing C. odorata leaf extract showed the best antibacterial activities against Escherichia coli ATCC 25922 and Stapphylococcus aureus ATCC 25923. The minimum bactericidal concentration of the microcapsules was 25.6 mg/mL in both bacteria. This study proved the potential application of C. odorata leaf extract as a biomaterial in diverse industries in the future.
Synthesis of 2-Phenoxyacetic Acid Analogs for Evaluation of the Anti-inflammatory Potential and Subsequent In Silico Analysis Hossain, Md. Mofazzal; Biswas, Bishyajit Kumar; Bepary, Sukumar
Indonesian Journal of Chemistry Vol 24, No 5 (2024)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijc.96015

Abstract

Several 2-phenoxyacetic acid derivatives and their isosteres were synthesized in moderate to high yield (57–96%) for searching newer and safer alternatives to these existing anti-inflammatory agents. The compounds were characterized by 1H-NMR, 13C-NMR and HRMS. The synthesized compounds have been subjected to in vitro anti-inflammatory activity using egg albumin denaturation and human red blood cell membrane stabilization methods. The compounds were also evaluated for their anti-inflammatory activity in the mice model. The synthesized compounds were subsequently subjected to docking analysis. The in vitro pharmacokinetic properties were analyzed by applying the pkCSM software and drug-likeness was checked by using Lipinski’s rule. Some synthesized esters and amides, like SM61, SM81, SM82, SM83, SM91 and SM101, were significantly more powerful as anti-inflammatory agents. The efficacies were correlated with their orientations in the binding pocket of the cyclooxygenase enzyme. The encouraging in vitro and in vivo activities, the optimum pharmacokinetic profile, and good drug-likeness indicated that these scaffolds could be considered for future discovery of newer nonsteroidal anti-inflammatory drugs (NSAIDs).

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