A5023875362- Radiopharmaceutical Chemistry and Applications
- Chemical Synthesis and Characterization
- Nuclear Physics and Applications
- Catalytic Processes in Materials Science
- Radioactive element chemistry and processing
- Medical Imaging and Pathology Studies
- Particle accelerators and beam dynamics
- Boron Compounds in Chemistry
- Graphite, nuclear technology, radiation studies
- Medical Imaging Techniques and Applications
- Zeolite Catalysis and Synthesis
- Boron and Carbon Nanomaterials Research
- Nuclear Materials and Properties
- Muon and positron interactions and applications
- Mesoporous Materials and Catalysis
- X-ray Diffraction in Crystallography
- Radiation Therapy and Dosimetry
- Computer Science and Engineering
- Advanced Polymer Synthesis and Characterization
- Layered Double Hydroxides Synthesis and Applications
- Synthesis and Biological Evaluation
- Cancer and biochemical research
- Salivary Gland Disorders and Functions
- Electrowetting and Microfluidic Technologies
- Hydrogels: synthesis, properties, applications
National Nuclear Energy Agency of Indonesia
2015-2025
National Research and Innovation Agency
2022-2024
University of Tsukuba
2017-2020
National Institute for Materials Science
2017-2019
A 3D macroporous honeycomb-like ZnO/ZnCo<sub>2</sub>O<sub>4</sub> hybrid for CO sensing is reported.
Abstract This work reports the template‐free fabrication of mesoporous Al 2 O 3 nanospheres with greatly enhanced textural characteristics through a newly developed post‐synthesis “water‐ethanol” treatment aluminium glycerate followed by high temperature calcination. The proposed is highly advantageous as resulting exhibit 2–4 times higher surface area (up to 251 m g −1 ), narrower pore size distribution, and significantly lower crystallization than those obtained without any treatment. To...
Abstract Mesoporous materials with high surface area and pore volume have attracted significant attention as adsorbents they can provide extensive reaction sites for molybdenum (Mo) adsorption. In this study, we prepared mesoporous alumina (MA) using a soft-templated approach. By changing the applied calcination temperatures, mesostructural ordering, areas, crystallinity of MA be varied. Furthermore, effects these parameters on their adsorption properties been carefully investigated. The...
In this work, we have prepared alumina-embedded mesoporous silica and investigated their molybdenum (Mo) adsorption properties. To synthesize such materials, particles were firstly synthesized via a soft-templated approach followed by the introduction of aluminium butoxide into mesopores, which was converted alumina heat treatment at high temperatures. The obtained samples (Alx-MPS) characterized low- wide-angle X-ray diffractions, nitrogen adsorption-desorption isotherms, transmission...
Abstract The effective utilization of various biomolecules for creating a series mesoporous boehmite (γ‐AlOOH) and gamma‐alumina (γ‐Al 2 O 3 ) nanosheets with unique hierarchical multilayered structures is demonstrated. nature concentration the strongly influence degree crystallinity, morphology, textural properties resulting γ‐AlOOH γ‐Al nanosheets, allowing easy tuning. synthesized by using exhibit enhanced improved particle separation, well‐defined compared to those obtained without...
Molybdenum produced from fission of U-235 is the most desirable precursor for 99 Mo/ 99m Tc generator system as it non-carrier added and has high specific activity. However, in last decade there been short supply Mo due to several constrains. Therefore, have many works performed development using which not either LEU or HEU. This report deals with where zirconium-based material (ZBM) used adsorbent neutron-activated Mo. The was prepared by firstly irradiating natural G. A. Siwabessy reactor...
The present study deals with the synthesis and characterization of ZrO 2 nanomaterial which can be used as an adsorbent for Molybdenum-99 ( 99 Mo). potentially utilized material Mo/ 99m Tc generator column. Using sol-gel method, monoclinic nanocrystalline zirconia was synthesized from zirconium oxychloride in isopropyl alcohol reacted ammonium hydroxide solution resulting a white gel. gel subsequently refluxed 12 hours at ~95°C pH ~4 then dried 100°C. drying calcined 600°C two hours....
Abstract This work reports the fabrication of mesoporous Al2O3-TiO2 composites with various contents TiO2 and their utilization as adsorbents for molybdenum anions potential application in medical radioisotope production. The increase promotes deposition more nanoparticles on surface Al2O3 support without altering original morphology. Furthermore, alumina samples loaded smaller amounts (Al2O3-2.5% Ti (20.01 mass% TiO2) Al2O3-5% (34.55 TiO2)) are amorphous nature. However, at a high loading...
The fission-product 99 Mo, having a high specific activity, is commonly used in alumina-based Mo /99m Tc generator. Due to the limitation on use of an alternative route for production, namely activation natural molybdenum using thermal neutron, has been explored. Unfortunately, this neutron-activated low activity. Therefore, generator based requires column with higher capacity absorbent. Thus, study, nanomaterial alumina (nano- - Al 2 O 3 ) was synthesized which expected have adsorption...
Technetium-99m ( 99m Tc) plays a major role in diagnostic nuclear medicine and has not yet been replaced with any other radionuclides. It is available through the 99 Mo/ Tc generator. The use of low-specific-activity Mo for generator application requires high adsorptive capacity sorbents. This study focused on determination adsorption several zirconia materials, namely monoclinic nanozirconia , orthorhombic sulfated zirconia, phosphated zirconia. These materials were synthesized by using...
The many problems in preparing fission product 99 Mo led into this work to develop Mo/ 99m Tc generator using neutron-irradiated natural MoO 3 targets and, more specifically, a zirconium-based material (ZBM) for chromatography columns that have an adsorption capacity of than 100 mg Mo/g ZBM. This paper reports our recent experiments the use sodium hypochlorite solution various concentrations improve yield performance (n,γ) generators based on synthesized ZBM was coated with tetraethyl...
PEMBUATAN RADIONUKLIDA MOLIBDENUM-99 (99Mo) HASIL AKTIVASI NEUTRON DARI MOLIBDENUM ALAM UNTUK MEMPEROLEH TEKNESIUM-99m (99mTc). Pembatasan penggunaan uranium sebagai target untuk produksi 99mTc menyebabkan rumah sakit di Indonesia kesulitan mendapatkan pasokan 99mTc. Saat ini diperoleh dari 99Mo hasil fisi (pembelahan uranium). Pembuatan radionuklida aktivasi neutron molibdenum alam (MoO3) teras reaktor G.A Siwabessy digunakan metode alternatif memperoleh Tujuan penelitian adalah melakukan...
Research on low critical solution temperature (LCST) of poly(N-isopropylacrylamide) gel was investigated. The prepared through a free radical polymerization. Crosslinker N,N'-methylene(bis)acrylamide varied from 3% to 4% monomer mass and ammonium persulfate added as the initiator at fixed concentration 2% mass. A 50 mM PBS pH 7 used solvent. LCST determined using swelling ratio measurement in range 15 °C 70 °C. result showed that transparent polymer obtained room temperature.
Abstract The production method of no-carrier added Lutetium-177 ( 177 Lu) was developed from a neutron-activated natural ytterbium (Yb) using column chromatography separation method. Dowex W50 X8 resin and combination alpha-hydroxyisobutyric acid (α-HIBA) hydrochloric (HCl) were used as filler eluent, respectively. HCl increased the desorption between Lu Yb at concentration 0.25 M, while optimal α-HIBA 0.15 resulting in yield 81.19 % low impurities 175 Yb: 9.28 %, 169 2.09 %). Nevertheless,...
The most frequent thyroid disorders in Indonesia are hyperthyroidism and cancer. One effective way to diagnose treat cancer is the radioactive iodine-131 solution. Currently, solution used hospital imported from overseas. This work aimed develop a suitable oral obtained non-fission production. formulations were divided into four different types, namely Fo-1), Fo-2 Fo-3 Fo-4, which buffer composition gas purges treatment. Parameters investigated check quality of solution, such as stability...
Abstract The 99 Mo/ 99m Tc generator is a chromatography column system that can be eluted to obtain technetium-99m ( Tc) for nuclear medicine applications in the hospital. Mesoporous titania developed Mo adsorbent of employing low specific activity produced by reactor irradiation natural molybdenum. A symmetric triblock copolymer P123 was used as template create mesoporous using sol-gel process.. molar ratio reactant (titanium tetraisopropoxide (TTIP) and titanium chloride (TiCl 4 )) applied...
Abstract Specific and accurate diagnostic tools are important to determine diagnosis for various lung diseases with complex characteristics. In this study, high-energy milling (HEM) was utilized prepare micro-sized carbon from palm kernel shell charcoal as a potential aerosol agent ventilation scintigraphy. The HEM parameters investigated in experiment were time ball-to-powder ratio (BPR), while the characterization of obtained powder involves particle size distribution, porosity, specific...
Normal 0 false EN-US X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman","serif";} Molybdenum-99 ( 99 Mo) is the parent radioisotope of technetium-99m 99m Tc) , an essential...
Aluminum (Al) is often used to house a molybdenum oxide (MoO3) target for neutron or proton-produced technetium-99m (99mTc) radioisotope. During proton bombardment of an Al body, residual radioisotopes could be generated following nuclear reactions between the incoming particles and body. In this research, produced reactor based-neutron irradiation body were experimentally measured using portable gamma ray spectroscopy system; whereas TALYS 2015 calculated data evaluate various by-product...
Zirconium-based material (ZBM) has an important role in producing Technetium-99m ( 99m Tc) due to its high adsorption capacity Molybdenum-99 99 Mo). The of the ZBM depends on specific surface area which is influenced by several parameters synthesis process. This study aims investigate influence drying time and temperature structure ZBM. Synthesis was carried out using zirconium chloride, 2-propanol, water tetrahydrofuran at 75 °C, 90 °C 120 for 3 hr, 5 hr 7 respectively. Functional group...
Abstract The mesoporous gamma-alumina is a good material for metal adsorption. Its textural properties are excellent, mainly molybdenum-99 radioisotopes adsorption as part of 99 Mo/ 99m Tc generator in nuclear medicine. In this work, we have prepared by sol-gel treatment the presence glucose soft template. molar ratio reactant (water: aluminium isopropoxide(AIP)) was applied high and low ratios (150:1 25:1). resulted investigated using characterization analysis X-ray diffraction, Nitrogen...