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All Journal International Journal of Cell and Biomedical Science Science, Technology, and Communication Journal
Sakinah, Feby Nur
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Biochemistry, Genetics & Molecular Biology Computer Science & IT Electrical & Electronics Engineering Engineering Immunology & microbiology Materials Science & Nanotechnology Medicine & Pharmacology

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Non-Contact Electro Capacitive Cancer Therapy (ECCT) Modulate the mRNA Expression of PDGF and IL-1 in DMBA-induced Breast Cancer Rat Hidayah, Nurul; Sakinah, Feby Nur; Annisa, Dyah Retno
International Journal of Cell and Biomedical Science Vol 2 No 6 (2023)
Publisher : Stem Cell and Cancer Research (SCCR)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59278/cbs.v2i6.44

Abstract

Background: Breast cancer remains the most prevalent cancer among women globally, with significant mortality rates. Traditional therapies, such as surgery, chemotherapy, and radiotherapy, are associated with severe side effects and resistance, highlighting the need for alternative treatments. Electro-Capacitive Cancer Therapy (ECCT) is a promising non-invasive approach that uses low-intensity electric fields to selectively target cancer cells. Objective: This study aims to investigate the molecular mechanisms of ECCT, particularly its effects on key molecules such as PDGF and IL-1 in a DMBA-induced rat breast cancer model. Materials and Methods: The study used a post-test-only control group design with four groups: NINT (normal tissue), NIT (untreated tumor tissue), INT (DMBA-induced tumor tissue), and IT (ECCT-treated tumor tissue). ECCT was applied at 150 kHz for 21 days. mRNA expressions of PDGF and IL-1 were quantified using quantitative RT-PCR. Results: ECCT significantly reduced the mRNA expression of PDGF and IL-1 in treated tumor tissues (IT) compared to untreated tumor tissues (INT), bringing their levels closer to those observed in normal tissue (NINT). This suggests that ECCT downregulates key pro-angiogenic and pro-inflammatory molecules involved in tumor progression. Conclusion: In conclusion, the non-contact ECCT with a frequency of 150 kHz might downregulate PDGF and IL-1 mRNA expression in rat breast tumor tissue.
Cytotoxic and Antiproliferative Effects of Gynura divaricata Ethanolic Extract on HCT-116 Colorectal Cancer Cells In Vitro Putri Rifai, Fauziah Novita; Hidayah, Nurul; Sakinah, Feby Nur; Adityani, Resanti
International Journal of Cell and Biomedical Science Vol 3 No 8 (2024)
Publisher : Stem Cell and Cancer Research (SCCR)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59278/cbs.v3i8.50

Abstract

Background: Colorectal cancer is a major cause of cancer-related morbidity and mortality worldwide. The limitations of conventional treatments such as chemotherapy and radiotherapy have driven the search for alternative therapies with fewer side effects. Objective: This study aimed to investigate the cytotoxic effects of Gynura divaricata extract on HCT-116 colorectal cancer cells and evaluate its potential as a complementary anticancer agent. Methods: Gynura divaricata was extracted using ethanol through a maceration process. HCT-116 cells were cultured and treated with various concentrations of the extract. Cell viability was measured using the MTT assay, and the IC50 value was calculated through linear regression analysis. Results: Treatment with Gynura divaricata extract resulted in a dose-dependent decrease in cell viability. The IC50 value was determined to be 62.09 µg/mL, indicating significant cytotoxic activity against HCT-116 cells. Conclusion: Gynura divaricata exhibits potential as an alternative or adjunctive therapy for colorectal cancer due to its ability to reduce cancer cell viability.
Ultra-wideband diamond-shaped metamaterial absorber for radar cross section reduction Defrianto, Defrianto; Kurnia, Erwin; Saktioto, Saktioto; Emrinaldi, Tengku; Sakinah, Feby Nur; Ikhsan, M; Soerbakti, Yan
Science, Technology, and Communication Journal Vol. 6 No. 2 (2026): SINTECHCOM Journal (February 2026)
Publisher : Lembaga Studi Pendidikan dan Rekayasa Alam Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59190/stc.v6i2.340

Abstract

This study presents the design and full-wave simulation of a diamond-shaped metamaterial absorber configured in a 4×4 array for applications in radar cross section reduction (RCSR). The structure was modeled on an FR-4 substrate with a copper patch and metallic ground plane to achieve high absorption across the ultra-wideband (UWB) frequency range of 0.09 – 10 GHz. Simulations were conducted using CST Studio Suite. Key radar-related performance parameters including reflection (S11), transmission (S21), and absorption were analyzed. Results indicate that the absorber achieves extremely low reflection values (return loss up to -85 dB), near-zero transmission due to the ground plane, and absorption exceeding 80% in targeted radar bands. These findings demonstrate the high potential of diamond-shaped metamaterial absorbers for stealth applications and electromagnetic wave attenuation in modern radar systems.
Co-Authors Adityani, Resanti Annisa, Dyah Retno Defrianto Defrianto Kurnia, Erwin M Ikhsan Nurul Hidayah Rifai, Fauziah Novita Putri Saktioto Saktioto Soerbakti, Yan Tengku Emrinaldi