25 articles in this issue
Yayuk Astuti,Faradina Azahra Zaqia,Aulia Zahra Ekaningsih,Gunawan Gunawan,Adi Darmawan
This research is concerned with the synthesis and characterization of a composite material that may be used as a battery electrode. Bismuth oxide (Bi2O3) was synthesized from Bi(NO3)3·5H2O, Na2SO4, and NaOH mixed with commercial activated carbon and graph... see more
Adi Setyo Purnomo,Alya Awinatul Rohmah,Weni Sri Ekowati,Hamdan Dwi Rizqi,Asranudin Asranudin
The disposal of dye wastewater has become a major global concern. Meanwhile, microorganisms have shown high potential in the treatment of wastewater pollutants. In this study, the involvement of the Fenton reaction in the biodecolorization and biodegradat... see more
Raneen Salim Al-Hilfi,Najlaa Zaki Al-Ameri,Mouhanad Jwad Al-Asadi
Heterocyclic 1,4-di(1,3,5-dithiazinan-5-yl)benzene (D) and two heterocyclic-cationic Gemini surfactant 5,5'-(1,4-phenylene)bis(5-decyl-1,3,5-dithiazinan-5-ium)bromide (E) and 5,5'-(1,4-phenylene)bis(5-tetradecyl-1,3,5-dithiazinan-5-ium)bromide (F) were pr... see more
Mukhamad Nurhadi,Ratna Kusumawardani,Teguh Wirawan,Sin Yuan Lai,Hadi Nur
Fishbone-derived carbon sulfonate, modified through incipient wetness impregnation with titanium tetraisopropoxide and iron nitrate salts, displays catalytic activity in the oxidation of styrene with hydrogen peroxide (H2O2) as an oxidant. This was done t... see more
Gusliani Eka Putri,Syukri Arief,Ahmad Hafizullah Ritonga,Wiya Elsa Fitri,Eliza Arman,Arniat Christian Telaumbanu,Rahmi Novita Yusuf
The approach to the synthesis of cerium oxide nanoparticles (CeO2NPs) using plants as capping agents has been widely researched because of its eco-friendly, low-cost, simple, effective, and reusability. In this research, we used Moringa oleifera leaf extr... see more
Zinah Hussein Ali,Dina Saleem,Abbas Khudhair Abbas,Baneen Salam Rasool,Mustafa Sabri Cheyad
In this work, new compounds of amide derivatives (C1-C3) were synthesized through the conversion reaction of p-chloroaniline to diazonium salt (B1), which reacts with aniline to form a new azo-compound (B3). Synthesized of p-alkoxybenzoic acid (A1-A3) and... see more
Nurmala Nurmala,Adhitasari Suratman,Suherman Suherman
Paracetamol contained in wastewater can cause adverse effects on animal ecosystems, such as fish living in waters and cause harmful effects on humans. Adsorption techniques are used to remove these pharmaceutical compounds. Alginate-chitosan nanoparticles... see more
Nada Ahmed Rasheed Al-qasii,Ali Taleb Bader,Zaied Mosaa
The study focused on producing and examining the properties of the 2-(((3-mercapto-5-(4-nitrophenyl)-4H-1,2,4-triazol-4-yl)imino)methyl)-4-(((4-mercaptophenyl) diazenyl)phenol) ligand (L) and its complexes with three transition metal ions, namely Ni(II), ... see more
Yulfi Zetra,Rafwan Year Perry Burhan,Sulistiyono Sulistiyono,Arizal Firmansyah,Darin Salsabila
A study of the sedimentary rocks of the Ngrayong formation has been carried out on five samples from the Polaman outcrop point to determine the potential of coal as a source rock for producing oil and gas through GC-MS analysis. Biomarker analysis shows t... see more
Sofiah Hamzah,Nazaitulshila Rasit,Nurul Aqilah Mohamad,Mohammad Hakim Che Harun,Alyza Azzura Abd Rahman Azmi,Nur Hanis Hayati Hairom,Ahmad Ariff Fahmi Mustofa,Mohd Salleh Amri Zahid,Norhafiza Ilyana Yatim,Nor Azman Kasan
The rapid development of the aquaculture industry has contributed to the high amount of nutrients in wastewater that subsequently led to eutrophication and deterioration of water quality. Aquaculture wastewater consists of uneaten fish feed, fecal and oth... see more
Adhi Maulana Yusuf,Satrio Kuntolaksono,Agustina Sus Andreani
In this study, AuNPs were reduced using ortho-hydroxybenzoic acid (o-HBA) and various stabilizing agents (a-CDs and ß-CDs). The stability, shape, size, and sensitivity of the Fe3+ detection of AuNPs a-CDs and AuNP ß-CDs are compared. Both nanomaterials we... see more
Helen Abd Alhassan Mahmood,Rulla Sabah,Nisreen Kais Abood
New and simple spectrophotometric method was applied for amoxicillin determination by oxidative coupling with an organic reagent 1-(4-aminophenyl)-3-(5-(4-nitrophenyl)-furan-2-yl)-yl)-prop-2-en-1-one (H) to form an orange colored dye with ?max of 490 nm. ... see more
Suaad Abd Mahdi Abd Noor,Amer Muosa Juda Al-Shamari
Nanoparticles and nanocomposites prepared by the hydrothermal method (ZnO, ZnO/MnO2) were used to build dye-sensitized solar cells (DSSCs), which were used as photoelectrodes using two natural dyes as the absorbent media: red (Hibiscus sabdariffa) and gre... see more
Rasha Jasim Tuama
Poly(ethylene terephthalate) (PET) waste was depolymerized by trans-2,3-dibromo-2-butene-1,4-diol in the presence of manganese acetate as a catalyst using microwave irradiation as opposed to the conventional heating process in order to reduce the time req... see more
Zainab Sabeer Abdulsada,Sahar Sabeeh Hassan,Sanaa Hitur Awad
Natural polymers are often non-toxic, biodegradable, biocompatible, and safe. A novel ligand was synthesized as a natural polymer using chitosan and oleander plant extract [(2R,3S,4R,5S)-5-(acetoxyamino)-4-hydroxy-3,6-dimethoxytetrahydro-2H-pyran-2-yl) me... see more
Endang Susilowati,Lina Mahardiani,Sri Retno Dwi Ariani,Ilham Maulana Sulaeman
Colloidal silver nanoparticles were successfully synthesized via the chemical reduction method. The synthesis used AgNO3 as the precursor, chitosan as the reducing and stabilizing agents, and NaOH as the accelerator. The synthesis parameters were optimize... see more
Meyliana Wulandari,Zahratussaadah Zahratussaadah,Nofrizal Nofrizal,Pandian Bothi Radja,Andreas Andreas
Indonesian black tea (BT) waste was utilized as a green corrosion inhibitor for carbon steel (CS) corrosion in a 0.5 M HCl medium. The BT extract was characterized using Fourier transform infra-red. The corrosion inhibition evaluation was studied usi... see more
Riyam Baqer Ibrahim,Suad Taha Saad
The complexes of Fe(II), Co(II), Ni(II), and Cu(II) Schiff base ligand derived from 2,5-dihydroxy-1,4-benzoquinone and 5-amino-2-methylphenol were synthesized. The ligand was synthesized by the reaction between the mentioned ketone and amine in 1:2 molar ... see more
Agustin Iskandar,Hambiah Hari Oki,Catur Suci Sutrisnani,Novi Khila Firani,Nur Samsu,Agustina Tri Endharti,Edi Widjajanto
The objective of this study was to assess the predictive value of inflammatory biomarkers in COVID-19 patients, namely the CRP/albumin ratio (CAR), interleukin 6 (IL-6), IL-6/lymphocyte ratio (IL-6/LY), and neutrophil/lymphocyte ratio (NLR). A prospective... see more
Ahmad Hafizullah Ritonga,Barita Aritonang,Gusliani Eka Putri,Khairiah Khairiah,Enzo Wiranta Battra Siahaan,Debi Meilani
A plastic composite consisting of polylactic acid (PLA), linear low-density polyethylene (LLDPE), oleic acid-grafted linear low-density polyethylene (LLDPE-g-OA) compatibilizer, and organo-precipitated calcium carbonate (O-PCC) have been successfully made... see more
Meriem Outaki,Manal Zefzoufi,Amal Sammama,Khadija El Gadali,Rabiaa Fdil,Layla El Gaini
Components of medicinal plants have many pharmacological activities, including antioxidant activity, playing an important role in limiting oxidative stress that can cause several damages. This paper characterizes polyphenols of Retama monosperma L., Berbe... see more
Khedidja Merdja,Choukry Kamel Bendeddouche,Mokhtaria Drissi,Farah Chafika Kaouche,Nassima Medjahed,José Manuel Padrón,Mansour Debdab,Mustapha Rahmouni,El Habib Belarbi
This work focuses on synthesizing new imidazolin-4-one derivatives (2a-c), akin to leucettamine B analogs, via microwave-assisted transamination reactions. This reaction was carried out between 3-alkyl-5-dimethylamino-2-thioxo-imidazolidin-4-one (1a-c) an... see more
Pius Dore Ola,Michiaki Matsumoto
Due to the scarcity, studying precious metals extraction such as gold, platinum, and palladium is very critical. Solvent extraction is one of the established methods due to its simplicity and quickness but the low operational cost. In this study, a deep e... see more
Yosephine Novita Apriati,Bambang Kristiawan,Nikmatul Jannah,Ari Dwi Nugraheni,Sholihun Sholihun
Density functional theory calculations were performed to study the interactions between the host material Si-doped fullerene and the drug molecules paracetamol, a pain and fever reducer, and hydroxyurea, a drug for leukemic treatment. All atoms were relax... see more
Indah Mutiara Putri,Ferlana Debbora Dachi,Dhina Fitriastuti,Muhammad Idham Darussalam Mardjan
A green, convenient, and scalable synthesis of alcohols through the reduction of aldehydes and ketones has been developed. The green reduction was conducted using two different methods, namely sonochemistry and mechanochemistry. In the former method, the ... see more