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All Journal Biomedika Journal of Energy, Material, and Instrumentation Technology
Apriyanto, Donni Kis
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Biochemistry, Genetics & Molecular Biology Control & Systems Engineering Electrical & Electronics Engineering Energy Materials Science & Nanotechnology Medicine & Pharmacology Physics

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SERAPAN SENYAWA ORGANIK VOLATIL SEBAGAI BIOMARKER PENYAKIT KANKER PARU: SEBUAH MINI REVIEW Apriyanto, Donni Kis; Mitrayana, Mitrayana
Biomedika Vol 12, No 2 (2020): Biomedika Agustus 2020
Publisher : Universitas Muhamadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/biomedika.v12i2.10114

Abstract

ABSTRAKUlasan ini merupakan hasil studi literatur yang memberikan tinjauan umum serapan senyawa-senyawa organik volatil yang dianggap sebagai biomarker kanker paru. Senyawa-senyawa ini dapat menyerap pada panjang gelombang tertentu. Senyawa-senyawa organik volatil yang teridentifikasi didaftar dan dijabarkan panjang gelombang yang dapat mereka serap. Studi literatur ini menyajikan kelompok senyawa-senyawa organik volatil dapat menyerap pada rentang panjang gelombang inframerah. Hasil ulasan ini mungkin dapat bermanfaat untuk pengembangan skrinning kanker paru dengan menggunakan alat spektroskopi fotoakustik yang menggunakan sumber laser pada rentang panjang gelombang inframerah atau ultraviolet dengan memanfaatkan serapan panjang gelombang oleh senyawa-senyawa tertentu.Keyword: Biomarker Kanker Paru,Senyawa Organik Volatil, Spektroskopi ABSTRACTThis review is the result of a literature study that provides a general collection of volatile organic compounds (VOC) which are considered as markers for lung cancer. These compounds can absorb certain long waves. The volatile organic compounds identified are listed and described in wavelengths that they can absorb. Literature studies that produce volatile organic compounds in the analysis wavelength range. The results of this review may be useful for the development of lung cancer screening by photoacoustic spectroscopic devices that use laser sources in the range of infrared or ultraviolet wavelengths by utilizing wavelength absorb by certain compounds.Keyword: Lung Cancer Biomarker, Volatile Organic Compounds, Spectroscopy
Electrical Design and Characterization of Plant Microbial Fuel Cell (PMFC) Using Water Hyacinth Plants with Variation of The Amount of Water and The Effect of Sunlight pubiyanti, Intan; Suciyati, Sri Wahyu; Apriyanto, Donni Kis; Supriyanto, Amir
Journal of Energy, Material, and Instrumentation Technology Vol 6 No 2 (2025): Journal of Energy, Material, and Instrumentation Technology
Publisher : Departement of Physics, Faculty of Mathematics and Natural Sciences, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jemit.v6i1.155

Abstract

Research on Plant Microbial Fuel Cells (PMFCs) has begun to develop, and various types of plants have been used. This research has realized PMFC using hyacinth plants by diversifying the amount of water and the effects of sunlight. The electrical properties of PMFCs aim to determine the effect of variations in the amount of hyacinth and sunlight on the power generated. In the reactor, the electrodes used are Cu and Zn plates. Data were collected by placing three reactors outdoors for 14 days or 331 hours. Based on the study's results, PMFC in reactor c, containing three clumps of hyacinth, obtained greater electrical power than in reactors A and b. The maximum electrical power is 6.31 mW on the 61st hour or 3rd-day measurement at 13.00 WIB. PMFC produces greater electrical power in external conditions than in internal conditions.
Analysis of Electrical Potential in a Thermoelectric Generator Utilizing Cooking Stove Waste Heat Pauzi, Gurum Ahmad; Aprilia Habibah; Ali Akbar Raksa Gandi; Yulianti, Yanti; Warsito; Apriyanto, Donni Kis
Journal of Energy, Material, and Instrumentation Technology Vol 6 No 4 (2025): Journal of Energy, Material, and Instrumentation Technology (In Press)
Publisher : Departement of Physics, Faculty of Mathematics and Natural Sciences, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jemit.437

Abstract

The need for sustainable alternative energy sources has driven increasing interest in waste heat utilization, particularly from domestic and commercial activities such as cooking stoves. This study analyzes the potential for electrical energy generation from waste heat produced by commercial restaurant stoves using a multi-module thermoelectric generator (TEG) system based on Peltier modules (TEC1-12706 and TEG 1848) equipped with a cooling mechanism. The experimental procedure involved characterizing the electrical performance of the modules under a controlled heat source, followed by direct application to an LPG stove with variations in the distance between the heat source and the module to meet specific temperature conditions. The results demonstrate a strong nonlinear relationship between the temperature difference (delta T) and the output voltage, with optimal performance observed within a delta T range of 40 to 65 degrees Celsius. During stove testing, the system generated a maximum output power of 804 milliwatts at a delta T of approximately 53 degrees Celsius. These findings indicate that the utilization of stove waste heat through serially connected TEG modules combined with active thermal management represents a feasible approach for direct current electricity generation in waste heat recovery applications. However, the overall efficiency remains constrained by internal module resistance and thermal contact instability under real operating conditions.
Co-Authors Ali Akbar Raksa Gandi Aprilia Habibah Mitrayana - Pauzi, Gurum Ahmad Pubiyanti, Intan Sri Wahyu Suciyati Supriyanto, Amir Warsito Yanti Yulianti