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All Journal Indonesian Physical Review International Journal of Applied Sciences and Smart Technologies
Setiana, Mina Devika
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Computer Science & IT Education Energy Engineering Industrial & Manufacturing Engineering Physics

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Characterization The Flavonoids Extract of Tridax Procumbens l. Leaves and Betel Lime as Materials for Open Wound Analgesic Ointment Zainullah, Muhammad; Setiana, Mina Devika; Fatimah, Vera Nur; Fitriana, Ilma; Kurniawan, Robi
International Journal of Applied Sciences and Smart Technologies Volume 06, Issue 2, December 2024
Publisher : Universitas Sanata Dharma

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24071/ijasst.v6i2.7915

Abstract

Tridax procumbens L. has quite high flavonoid content (6.51%). Flavonoids have antimicrobial effects that can fight bacteria. Besides that, the flavonoid content of T. procumbens leaves as an analgesic inhibits has the potential to be used as an analgesic ointment material for open wounds. Betel lime (CaCO3) also helps speed up the healing of open wounds. This research aims to optimize a mixture of T. procumbens leaves and betel lime to make a material-based herbal ointment that effective in healing open wounds. This research uses quantitative and qualitative approaches. The dependent variables used are the results of FTIR characterization, SEM-EDX, and antibacterial tests. Research results show that the 1:1 ointment sample has the highest homogeneity with an average particle size distribution of 11.95 nm. The weight and total atomic weight of carbon and calcium elements fluctuated with increasing leaf extract concentration, but the 2:1 ointment sample showed a higher calcium element content than the other samples because the amount of whiting was greater than the leaf extract. Flavonoid functional groups were successfully detected, O-H, C-H, and C-O-C. In S. aureus, it was shown that the 1:1 ointment sample was able to inhibit bacterial growth with an inhibition zone diameter of 0.062 to 1.510 cm. In addition, the contents of stigmasterol, β-sitosterol, and n-hexadecanoid acid are the main components that play a role in the inhibitory activity of bacteria. Keywords: Analgesic ointment, flavonoids, open wounds
SYNTHESIS OF MAGNETITE/ACTIVATED CARBON NANOCOMPOSITES FOR THE REMOVAL OF LEAD AND METHYLENE BLUE Setiana, Mina Devika; Fen, Yap Wing; Hidayat, Arif; Subadra, ST. Ulfawanti Intan; Taufiq, Ahmad
Indonesian Physical Review Vol. 9 No. 2 (2026)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v9i2.651

Abstract

Water pollution from industrial waste, such as lead and methylene blue (MB), has serious impacts on aquatic life and human health. In addition, existing methods are less effective for waste treatment and are costly to operate.  Therefore, this study aims to develop magnetite/activated carbon nanocomposites based on natural materials as adsorbents. The XRD diffraction pattern showed broadened peaks and the highest crystalline peaks at 2θ = 20°–26° and 35.5° for activated carbon and magnetite, respectively. The nanocomposite formation was confirmed from the EDX spectrum, which showed the presence of Fe, O, and C elements, as well as from the FTIR spectrum, which detected the presence of Fe–O, C–H, C=C, C=O, and O–H functional groups. Furthermore, based on the SEM results, the nanocomposites were found to be spherical and porous, with an average particle size of 35.53 ± 0.83 nm. Meanwhile, the BET results showed that the nanocomposites had a total pore volume of 0.333 cm3/g. The kinetics of lead adsorption reached equilibrium in 25 minutes with an efficiency of 99.51%. The adsorption of MB reached equilibrium in 20 minutes, with an efficiency of 97.02%. The results of the kinetic analysis showed that the adsorption of lead and MB both fit the pseudo-second order (PSO) modeling with adsorption capacities (qe) of 11.6550 mg/g and 7.3421 mg/g, respectively. Based on these results, the magnetite/activated carbon nanocomposites are promising as an alternative adsorbent due to their high efficiency, practicality, and magnetic separation capabilities.
Co-Authors Ahmad Taufiq Arif Hidayat Fatimah, Vera Nur Fen, Yap Wing Fitriana, Ilma Robi Kurniawan Subadra, ST. Ulfawanti Intan Zainullah, Muhammad