25 articles in this issue
Ahmad Akhib Ainul Yaqin,Suherman Suherman,Mudasir Mudasir,Dwi Siswanta
Carbon/Alginate/Chitosan Composite (CAC) as a sorbent for solid-phase extraction of Cu(II) (pre-concentration) with atomic absorption spectrometry for analysis was successfully prepared. The sorbent was made with a mass ratio of chitosan:alginate:carbon =... see more
Busroni Busroni,Dwi Siswanta,Jumina Jumina,Sri Juari Santosa,Chairil Anwar
This study aims to investigate the application of two calix[4]arene derivatives named 5,11,17,23-tetra-(t-butyl)-25,26,27,28-tetrahydroxycalix[4]arene (TBCA) and 5,11,17,23-tetra-(t-butyl)-26,27,28-tribenzoyloxycalix[4]arene (TBMTCA) as adsorbents of Pb(I... see more
Nevi Faizatu Rokhmah,Muhammad Idham Darussalam Mardjan,Bambang Purwono
Vanillin-azine (VA), (4,4'-((1E,1'E)-hydrazine-1,2-diylidenebis(methane-lylidene))bis(2-methoxyphenol) has been synthesized from vanillin and tested as anion colorimetric chemosensors for sulfide anion. The VA was obtained from a condensation reaction bet... see more
Isra Janatiningrum,Yulin Lestari,Dedy Duryadi Solihin,Anja Meryandini
Filamentous bacteria have been known as actinobacteria which could produce various secondary metabolites, including an a-glucosidase inhibitor. The a-glucosidase inhibitor has been identified to be potentially valuable for the treatment of diabetes mellit... see more
Praptisih Praptisih,Yoga Andriana Sendjaja,Vijaya Isnaniawardhani,Anggoro Tri Mursito,Purna Sulastya Putra,Septriono Hari Nugroho
The purpose of the study in the Karangkobar area was to investigate the source rock potential of the fine-grained surface samples of clastic sediments. The use of surface samples for source rock potential study in Indonesia is still limited. We conducted ... see more
Risfidian Mohadi,Novie Juleanti,Normah Normah,Patimah Mega Syah Bahar Nur Siregar,Alfan Wijaya,Neza Rahayu Palapa,Aldes Lesbani
Carbon-based adsorbent as a hydrochar (Hc) material with Duku (Lansium domesticum) peel precursors has been successfully synthesized as evidenced by XRD, FT-IR, BET, and SEM analysis. XRD analysis showed the presence of diffraction peaks around 16° and 22... see more
Gunasingham Parthiban,Ramachandren Dushanan,Samantha Weerasinghe,Dhammike Dissanayake,Rajendram Senthilnithy
The acetylation modification process of histone has an essential role in the epigenetic regulation of gene expression. This process is controlled by the balance between histone deacetylases (HDAC) and histone acetyltransferases (HAT). HDACs are thought to... see more
Dewi Anggraini Septaningsih,Cecep Abdurohman Putra,Irma Herawati Suparto,Suminar Setiati Achmadi,Rudi Heryanto,Mohamad Rafi
In Indonesia, Gynura procumbens (Lour.) Merr., known as Longevity Spinach or Sambung Nyawa, is commonly grown in tropical and subtropical Asian countries. Many biological activities of G. procumbens have been reported. As we know, the composition and conc... see more
Lotfi Benmekhbi,Salima Mosbah,Hanane Laamraoui,Ikram Hamlaoui,Serhouda Bencheriet,Demirtas Ibrahim
Indigenous medical professionals prescribe plant-based therapeutics for the handling of a range of maladies and use typical medical care at the preventive level. Oxidative stress, obesity, and multidrug resistance to pathogenic microorganisms are major ch... see more
Yulfi Zetra,Anis Febriati,Dyah Nirmala,Rafwan Year Perry Burhan,Arizal Firmansyah,Zjahra Vianita Nugraheni
Liquefaction of low-rank coal has been done to optimize the utilization of low-rank coal, which is less economical for obtaining alternative fuel oil. Coal samples were taken from the Bukit Pinang coal mine, Samarinda Ulu, East Kalimantan. Coal was liquef... see more
Amsalu Genanaw Gebeyehu,Kumlachew Zelalem Walle,Meseret ZEbeaman Birhanu,Rahel Gebeyehu
Withania somnifera (W. somnifera), a small, woody shrub in the Solanaceae family, has been studied using a phytochemical test, antibacterial activity and partial characterizations. Air-dried and powdered leaves of the plant were extracted with maceration ... see more
Meinaa Jaber Dalal,Athraa Hameed Mekky
The present study introduces the synthesis of two series of tetrazole derivatives. Firstly, monosubstituted S1 was prepared by the reaction of ethyl 4-aminobenzoate with an amount of sodium azide and triethyl orthoformate in hot glacial acetic acid. Then,... see more
Sri Hidayati,Iman Santoso,Sefty Yunitasari,Sholihun Sholihun
In this study, electronic structure calculations of Ca-intercalated bilayer graphene are conducted using the density functional theory (DFT). We modeled two configurations by positioning calcium in the middle of the bilayer (M-site) and on top of the bila... see more
Meyliana Wulandari,Nofrizal Nofrizal,Syed Azhar Syed Sulaiman
Tea waste products were thrown out without any intention to utilize their potential benefits. This waste will help to improve industries to absorb rhodamine-B (RhB) dye pollutants currently used by various industries. This study evaluated the application ... see more
Feri Eko Hermanto,Warsito Warsito,Muhaimin Rifa'i,Nashi Widodo
Dietary intervention plays a significant role in regulating hyperlipidemia. Besides, elicited soybean has greater bioactive contents with numerous health benefits potential. However, there is no evidence of the hypolipidemic activity of elicited soybean. ... see more
Alya Awinatul Rohmah,Adi Setyo Purnomo,Widiya Nur Safitri
Industrial dye wastewater can potentially cause significant harm to organisms and the environment across the world. Methylene blue (MB) is a synthetic dye that can be found in wastewater. Immobilizing clay material and degradative bacteria into a carrier ... see more
Leny Yuliatun,Eko Sri Kunarti,Widjijono Widjijono,Nuryono Nuryono
In this research, the effect of strontium oxide (SrO) and hydroxyapatite (HA) on the properties of mineral trioxide aggregate (MTA) have been studied. MTA contained 20% SiO2, 60% CaO, and 2% Al2O3. Bi2O3 and SrO have been added with 18% (w/w) total percen... see more
Haider Shanshool Mohammed,Nuha Hussain Al-Saadawy
In the current study, a direct method was used to synthesize a new series of charge-transfer complex compounds. Reaction of different quinones with 3,4-selenadiazo benzophenone in a 1:1 mole ratio by acetonitrile gave a unique charge-transfer complex comp... see more
Herlina Rasyid,Firdaus Firdaus,Syadza Firdausiah,Nunuk Hariani Soekamto,Seniwati Seniwati,Riska Mardiyanti,Reynaldi Reynaldi,Andi Eka Sri Rahayu,Wahyu Dita Saputri
Aromatic ginger (Kaempferia galanga L.) is one of the natural sources containing ethyl-p-methoxycinnamate, which is known to have beneficial activity, especially as an a-glucosidase inhibitor. This study aims to convert ethyl-p-methoxycinnamate into amide... see more
Maria Ulfa,Muhammad Ari Purnama Ali
Gunningite has been successfully synthesized using the soft template method with the Pluronic F127-gelatin template. Gunningite was calcined at diverse temperatures of 500, 600, and 700 °C for 12 h and characterized by XRD, SEM, and FTIR. A UV-Vis Spectro... see more
Yanti Rachmayanti,Dikhi Firmansyah,Reza Ro'isatul Umma,Decsa Medika Hertanto,I Ketut Sudiana,Djoko Santoso,Dodi Nandika,Lina Karlinasari,Arinana Arinana,Irmanida Batubara,Lucia Dhiantika Witasari
Hanim Istatik Badi'ah,Dinda Khoirul Ummah,Ni Nyoman Tri Puspaningsih,Ganden Supriyanto
Colorimetric sensors-based silver nanoparticles (AgNPs) are very interesting to be studied and developed because of the simplicity and ease in the principle of detection. It does not require sophisticated and affordable tools but still has high sensitivit... see more
Rizal Irfandi,Indah Raya,Ahyar Ahmad,Ahmad Fudholi,Hasnah Natsir,Desy Kartina,Harningsih Karim,Santi Santi,Subakir Salnus
The importance of essential metal ions and their metal complexes in the creation of prospective medical therapies has long been recognized. In chemistry, molecular biology, and medicinal fields; the interaction of metal complexes with DNA has been a subje... see more
Almajed Asaad Abdullah Sfoog,Norlaili Abu Bakar,Nurulsaidah Abdul Rahim,Wan Rusmawati Wan Mahamod,Norhayati Hashim,Siti Kamilah Che Soh
Molecular imprinting polymers (MIPs) have been widely used to produce stable polymeric materials due to their highly selective binding sites to determine the analyte (target molecule) in food products. MIPs begin with a complex compound between the templa... see more
Winda Rahmalia,Anis Shofiyani,Yohana Sutiknyawati,Septiani Septiani
Bixin is a natural dye belonging to the carotenoid group that has been reported to have many health benefits. In this work, for the first time, metal-bixin complexes were synthesized through a simple green route using deep eutectic solvent (DES) as reacti... see more