25 articles in this issue
Nur Masyittah Irmi,Bambang Purwono,Chairil Anwar
Cyanide is a highly toxic anion and poison to the environment. Therefore, fast, effective, and efficient analysis methods to detect cyanide are needed. Herein, symmetrical chemosensor of 2’-hydroxy acetophenone azine (1) and 2’,4’-dihydroxy acetophenone a... see more
Rosnani Nasution,Cut Nyak Candein,Nurdin Saidi,Muhammad Bahi,Marianne Marianne
This study aims to identify the antifeedant activity of Azadirachta indica A. Juss root bark against Hong Kong caterpillar (Tenebrio molitor). A. indica A. root was macerated in n-hexane, ethyl acetate, and methanol. The investigation of antifeedant activ... see more
Haqqyana Haqqyana,Ali Altway,Mahfud Mahfud
One of the extensively prosperous potential aromatic plants is the clove (Syzgium aromaticum). This is owing to all parts of this plant (bud, stem, and leaves) contain a decent amount of essential oils. The current study focuses on the use of microwave-as... see more
Meidita Kemala Sari,Rahmat Basuki,Bambang Rusdiarso
Humic acid (HA) and urea-formaldehyde (UF) have been frequently reported as heavy metal adsorbents. However, the literature has never written HA modification by UF to improve the adsorbent’s performance. In this study, a new adsorbent of humic acid-urea f... see more
Sophi Damayanti,Samuel Gunadi Tanusondjaja,Benny Permana,Rika Hartati,Dian Ayu Eka Pitaloka,Indra Wibowo
Eleutherine americana (E. americana) is a medicinal plant commonly found on the island of Borneo, Indonesia. This plant is known to have several biological activities. However, anthraquinone residues are generally present as contaminants. This study was a... see more
Gunawan Gunawan,Abdul Haris,Nor Basid Adiwibawa Prasetya,Eka Pratista,Azis Amrullah
Ferrate(VI) salt is an effective oxidant and coagulant for water treatment and removal of metal ions. This study demonstrates a new approach to processing metal ions and anions in water by Fe(VI) through Fe(III) obtained from the electrolysis of waste iro... see more
Fahmi Arifan,Muhammad Kelvin Nandita,Enrico Fendy Sapatra,Salsabila Salsabila
Lecithin is an emulsifier that plays an active role in reducing surface tension in making emulsions. The production of lecithin from other vegetable oils allows the use of other types of vegetable oil as a source of lecithin production to replace soy-base... see more
Adi Setyo Purnomo,Asranudin Asranudin,Didik Prasetyoko,Yulinar Dwi Nur Azizah
The biotransformation and biodecolorization of methylene blue (MB) dye using the bacterium Ralstonia pickettii was investigated. This experiment was conducted in a nutrient broth (NB) medium after adding MB at 100 mg L–1 concentration. Approximately 98.11... see more
Nadia Mohamed Yusoff,Hasnah Osman,Mohd. Zaheen Hassan,Mohamed Ashraf Ali,Yeong Keng Yoon,Ezatul Ezleen Kamarulzaman,Muhammad Solehin Abd Ghani,Unang Supratman,Mohamad Nurul Azmi Mohamad Taib
West Nile virus (WNV) is among the other four flavivirus genus, rapidly spreading worldwide. The number of cases increases globally as there are no clinically available approved drugs and vaccines against this disease. Based on our previous finding relate... see more
Nuha Hussain Al-Saadawy
The current study aimed to prepare new organomercury and organotellurium compounds based on the condensation reaction of 1,7,7-trimethylbicyclo[2.2.1]heptan-2-one (camphor) and p-aminophenyl mercuric(II) chloride. All the prepared compounds were character... see more
Novi Sylvia,Fitriani Fitriani,Rozanna Dewi,Rizka Mulyawan,Abrar Muslim,Husni Husin,Yunardi Yunardi,Mutia Reza
Palm oil bottom ash utilization from mill boilers as CO2 adsorbent has been in use for few years. This study aims to examine adsorbent characteristics and capabilities of bottom ash produced from boiler combustion in palm oil industry for CO2 adsorption b... see more
Amir Hamzah Siregar,Aditia Warman,Mahyuni Harahap,Grace Nainggolan,Dellyansyah Dellyansyah,Saharman Gea
A polyvinyl alcohol (PVOH)/lignin nanofiber was prepared by the electrospinning method as a precursor for biodegradable and low-cost carbon fibers. PVOH 15% was dissolved in water, and various concentration of lignin (5, 10, 15, 20, and 25%) was added. Th... see more
Poedji Loekitowati Hariani,Addy Rachmat,Muhammad Said,Salni Salni
Due to their toxicity, Cd(II) and Ni(II) ions in the environment are severe. The hydroxyapatite composite was improved with magnetic MnFe2O4 to remove Cd(II) and Ni(II) ions from an aqueous solution. Hydroxyapatite was extracted from Snakehead (Channa str... see more
Muhammad Rifqi Al Fauzan,Trias Prima Satya,Galih Setyawan,Imam Fahrurrozi,Fitri Puspasari,Juliasih Partini,Sholihun Sholihun
We perform ?rst-principles calculations to investigate the adsorption process of methyl mercury (MeHg) on germanene with the presence of water molecules. We calculate the formation energy and density of states to determine the effect of the adsorption of ... see more
Gamal Abdel-Hafiz Mostafa,Hazem Mohamed Abu Shawish,Salman Mustafa Saadeh,Essam Ezzeldin
Utilizing the well-known ability of Schiff base ligands to bind metal ions, two newly fabricated ligands, namely: 2-((2-hydroxybenzylidene)amino)benzoic acid (L1) and 2-(furan-2-ylmethyleneamino)phenol (L2) were employed to coordinate copper(II) (Cu(II)) ... see more
Muhammed Emad Abood,Sumayha Muhammed Abbas
The study is based on the selective binding ability of the drug compound procaine (PRO) on a surface imprinted with nylon 6 (N6) polymer. Physical characterization of the polymer template was performed by X-ray diffraction and DSC thermal analysis. The im... see more
Waleed Abbas Jawad,Asim Alaa Abd Al-Hussein Balakit,Mahmoud Najim Abid Al-Jibouri
New transition metal complexes of cobalt(II), nickel(II), copper(II), palladium(II), cadmium(II), and platinum(IV) with bidentate ligand 4-amino-5-(3,4,5-trimethoxyphenyl)-4H-1,2,4-triazole-3-thiol were synthesized and characterized by microelemental anal... see more
Yeni Wahyuni Hartati,Sari Syahruni,Shabarni Gaffar,Santhy Wyantuti,Muhammad Yusuf,Toto Subroto
Inaccurate diagnoses contributes to the high mortality rate of breast cancer. Human epidermal growth factor receptor 2 (HER2) is overexpressed in breast cancer tumors at around 20–30%. This study aims to develop an electrochemical biosensor for HER2 based... see more
Daru Seto Bagus Anugrah,Laura Virdy Darmalim,Permono Adi Putro,Liana Dewi Nuratikah,Nurwarrohman Andre Sasongko,Parsaoran Siahaan,Adi Yulandi
The high application of Poly(styrene-maleic acid) (PSMA) in an aqueous environment, such as biomedical purposes, makes the interaction between PSMA and water molecules interesting to be investigated. This study evaluated the conformation, the hydrogen bon... see more
Siti Nurhazlin Jaluddin,Zainiharyati Mohd Zain,Mohamed Izzharif Abdul Halim,Muhd Fauzi Safian,Mohd Azri Abdul Rani,Mohamed Sazif Mohamed Subri
In forensic ballistics, gunshot residue (GSR) particles can be detected using screening or presumptive tests which are mainly focused on the chromophoric reaction. Most tests serve as an initial indication for a forensic investigator at the crime scene be... see more
Ghina Izdihar,Al Arofatus Naini,Desi Harneti,Rani Maharani,Nurlelasari Nurlelasari,Tri Mayanti,Agus Safari,Kindi Farabi,Unang Supratman,Mohamad Nurul Azmi,Yoshihito Shiono
Four sesquiterpenoid derivatives, i.e., 4ß,10a-dihydroxyaromadendrane (1), caryophyllenol-II (2), senecrassidiol (3), and clovane-2ß,9a-diol (4) have been isolated from the stem bark of Aglaia simplicifolia. The chemical structures of compounds 1-4 were d... see more
Abdul Rohman,Asefin Nurul Ikhtiarini,Widiastuti Setyaningsih,Mohamad Rafi,Nanik Siti Aminah,Muhamad Insanu,Irnawati Irnawati,Djoko Santosa
Sidaguri (Sida rhombifolia) is one of the herbal components used in traditional medicine. The application of chemometrics in the standardization of herbal medicine is common. The objective of this study was to classify Sidaguri from different regions base... see more
Nurul Husna As Saedah Bain,Noorshida Mohd Ali,Yusnita Juahir,Norhayati Hashim,Illyas Md Isa,Azmi Mohamed,Azlan Kamari,Bohari Mohd Yamin
A cationic complex of iridium(III), [Ir(2,4-F2ppy)2(F2bpyta)]PF6 utilizing 1,2,4-triazolepyridyl as an anchillary ligand modified with a 2,6-difluorobenzyl substituent was synthesized and characterized. The aromatic signals of pyridyltriazole and phenylpy... see more
Kindi Farabi,Unang Supratman
Munronia is a genus in the Meliaceae family, which consists of over 17 species that are distributed in the subtropical and tropical area of Asia, including southern China, Vietnam, Myanmar, Sri Lanka, India, Indonesia, and the Philippines. It is known tha... see more
Isnaini Rahmawati,Irkham Irkham,Rahmat Wibowo,Jarnuzi Gunlazuardi,Yasuaki Einaga,Tribidasari Anggraningrum Ivandini
Electrogenerated chemiluminescence (ECL) has recently become one of the most prominent and well-established transducers for immunoassay techniques. ECL relates a luminophore concentration in solution with the emission of light triggered by an electrochemi... see more