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All Journal MASALIQ: Jurnal Pendidikan dan Sains
Deski Beri
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Religion Education Social Sciences

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Pengaruh Doping Ag pada Sintesis Nanopartikel CuO dan Aktivitas Fotokatalitik untuk Degradasi Rhodamin B Aysha Famil Hidayah; Hary Sanjaya; Desy Kurniawati; Deski Beri
MASALIQ Vol 6 No 2 (2026): MARET
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/masaliq.v6i2.8984

Abstract

Textile dye wastewater contamination, particularly by Rhodamine B, is a serious environmental problem because it is toxic and difficult to degrade naturally. This study aimed to synthesize and evaluate the photocatalytic performance of pure CuO nanoparticles and Ag-doped CuO for the degradation of Rhodamine B. The materials were synthesized using the sol–gel method with an Ag doping concentration of 0.2 mmol. The optical properties were characterized using UV–Diffuse Reflectance Spectroscopy (UV-DRS) in the wavelength range of 185–1100 nm to determine the bandgap energy values using the Kubelka–Munk equation. Photocatalytic activity was tested through the degradation of Rhodamine B under visible light irradiation, with absorbance measurements obtained using a UV–Vis spectrophotometer at a maximum wavelength of 554 nm. The results showed that Ag doping reduced the CuO bandgap from 1.4819 eV to 1.2539 eV. Photocatalytic tests revealed that Ag-doped CuO exhibited higher activity than pure CuO, with Rhodamine B degradation reaching 60.55% at 90 minutes of irradiation, compared with only 32.72% for pure CuO at the same reaction time. This enhanced photocatalytic activity is associated with the role of Ag in suppressing electron–hole recombination, increasing light absorption through the surface plasmon effect, and providing more active sites on the catalyst surface. These findings confirm that Ag-doped CuO has promising potential as an effective photocatalyst for the treatment of textile dye wastewater and the control of environmental pollution.
Analisis Docking Molekuler Ligand Fitokimia terhadap Protein 1ND2 Rhinovirus Rahma Dika Aulia Nasution; Deski Beri
MASALIQ Vol 6 No 3 (2026): MEI
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/masaliq.v6i3.10070

Abstract

Although rhinovirus has a high prevalence worldwide, the development of antiviral agents specific to this virus remains limited. This study aims to evaluate phytochemical compounds from Indonesian medicinal plants as potential antiviral candidates against rhinovirus. This study used a quantitative in silico approach through molecular docking using MOE 2022 to analyze the interactions between 13 ligands and the target protein 1ND2. The results showed that tannin (-10.2962), cowanol (-8.9288), and zanthoxylin (-7.4879) had the best binding affinities compared with the other ligands. These findings indicate that phytochemical compounds have the potential to be developed as plant-based antiviral agent candidates. This study contributes to the development of ethnobotany-based drug discovery research and provides an initial basis for further experimental validation. Thus, the exploration of phytochemical compounds from Indonesian medicinal plants has important implications for the development of antiviral therapeutic candidates that are more specific to rhinovirus.
Analisis Docking Molekuler Senyawa Fitokimia Indonesia terhadap Protein Rhinovirus 2R06 Kinanti Ratu Saylendra; Deski Beri
MASALIQ Vol 6 No 3 (2026): MEI
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/masaliq.v6i3.10084

Abstract

Human Rhinovirus 14 (HRV14) is one of the main causes of upper respiratory tract infections and to date has no specific antiviral therapy. This study aims to analyze the potential of phytochemical compounds from Indonesian traditional plants against the VP1 protein of Rhinovirus 2R06 using an in silico molecular docking method. This study used a quantitative in silico-based approach with MOE 2022 software to evaluate the binding affinity and stability of ligand interactions with the viral receptor. The results showed that tannin, cowanol, and andrographolide had the best binding affinities, with S-scores of -11.6692, -10.2501, and -7.8695 kcal/mol, respectively. Low RMSD values indicated good stability of the ligand-receptor complexes, while the interactions formed were dominated by hydrogen bonds and electrostatic interactions with several important amino acid residues in the VP1 protein. Thus, phytochemical compounds from Indonesian traditional plants have the potential to be developed as natural antiviral candidates against Rhinovirus infection. This study provides an initial scientific basis for the development of plant-based therapeutic candidates, although further experimental validation is still required to confirm their effectiveness and biological mechanisms.
Analisis Molecular Docking Senyawa Fitokimia Tanaman Obat Indonesia terhadap Human Rhinovirus VP1 untuk Terapi Flu Biasa Mutiara Annisa; Deski Beri
MASALIQ Vol 6 No 3 (2026): MEI
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/masaliq.v6i3.10091

Abstract

Although Indonesian traditional medicinal plants have been widely used in natural medicine, molecular docking-based studies on the potential of their bioactive compounds as antiviral agents against Rhinovirus 2R06 still need to be developed. This study aims to examine the potential of bioactive compounds from four Indonesian traditional medicinal plants, namely benzoin (Styrax benzoin), turmeric (Curcuma longa), gotu kola (Centella asiatica), and castor leaves (Ricinus communis), as antiviral candidates against Rhinovirus 2R06, one of the main causes of the common cold. This study used a quantitative in silico-based approach through the molecular docking method with MOE 2022 software. The analysis was conducted to evaluate the binding affinity and stability of bioactive compound interactions with the target protein based on S-score and RMSD values. The results showed that curcumin and demethoxycurcumin (DMC) had strong binding affinities, as indicated by highly negative S-score values and low RMSD values. Both compounds formed stable interactions with important residues, such as Leu106 and Val188, through hydrogen bonds. Thus, bioactive compounds from Indonesian traditional medicinal plants, particularly curcumin and DMC, have the potential to be developed as natural therapeutic candidates for respiratory tract infections caused by Rhinovirus 2R06. This study provides an initial basis for the development of phytochemical compound-based antiviral agents, although further experimental validation is required to support their clinical application.
Co-Authors Aysha Famil Hidayah DESY KURNIAWATI Hary Sanjaya Kinanti Ratu Saylendra Mutiara Annisa Rahma Dika Aulia Nasution