25 articles in this issue
Romaya Sitha Silitonga,Nurul Widiastuti,Juhana Jaafar,Ahmad Fauzi Ismail,Muhammad Nidzhom Zainol Abidin,Ihsan Wan Azelee,Mahesan Naidu
Poly(vinylidene fluoride) (PVDF) has outstanding properties such as high thermal stability, resistance to acid solvents and good mechanical strength. Due to its properties, PVDF is widely used as a membrane matrix. However, PVDF membrane is hydrophobic pr... see more
Farzaneh Mohamadpour,Mojtaba Lashkari,Nourallah Hazeri
A green and facile saccharin-catalyzed procedure is developed for the one-pot convenient synthesis of dihydropyrano[2,3-c]pyrazole, tetrahydrobenzo[b]pyran and pyrano[2,3-d]pyrimidinone scaffolds via multi-component tandem Knoevenagel cyclocondensation re... see more
Normyzatul Akmal Abd Malek,Hamizah Mohd Zaki,Mohammad Noor Jalil
The interaction of Active Pharmaceutical Ingredient (API) with other compounds will affect drugs stability, toxicity, modified dissolution profiles or may form a new compound with the different crystal structure. Acetaminophenol (APAP), the most common dr... see more
Tukiran Tukiran,Andika Pramudya Wardana,Nurul Hidayati,Kuniyoshi Shimizu
The investigation of the Syzygium polycephalum Miq. (Myrtaceae) aimed to assess the phytochemical contents and antioxidant activity of the chloroform fraction. In this study, the fraction was obtained from methanol extract of S. polycephalum stem bark par... see more
Ace Tatang Hidayat,Kindi Farabi,Desi Harneti,Nurlelasari Nurlelasari,Rani Maharani,Ida Nurfarida,Unang Supratman,Yoshihito Shiono
Four dammarane-type triterpenoid compounds, dammar-24-en-3a-ol (1), 3-epi-cabraleahydroxy lactone (2), (E)-25-hydroperoxydammar-23-en-3b,20-diol (3), and dammar-24-en-3ß,20-diol (4), were isolated from the methanolic extract of the stembark of Aglaia arge... see more
Dewi Anggraini Septaningsih,Latifah Kosim Darusman,Farit Mochamad Afendi,Rudi Heryanto
Curcuma aeruginosa is known as one of the components of herbal medicine with various biological activities. This research aims to identify the metabolites content of C. aeruginosa related to their biological activities using LC-MS fingerprint combined wit... see more
Ratnaningsih Eko Sardjono,Iqbal Musthapa,Iis Rosliana,Fitri Khoerunnisa,Galuh Yuliani
A new versatile macromolecule cyclic C-3,7-dimethyl-7-hydroxycalix[4]resorcinarene (CDHHK4R) has been synthesized from a fragrance agent, 7-hydroxycitronellal, via microwave irradiation. The reaction utilized a domestic microwave oven at various irradiati... see more
Ismiarni Komala,Supandi Supandi,Nurhasni Nurhasni,Ofa Suzanti Betha,Eka Putri,Syarifatul Mufidah,Muhammad Fikry Awaludin,Mida Fahmi,Muhammad Reza,Nurkhayati Putri Indriyani
Ethyl p-methoxycinnamate (EPMC) (1) has been isolated as a major compound from the rhizome of Kaempferia galanga together with the other compound ethyl cinnamate (2). As reported in the literature, EPMC (1) exhibited a significant in vitro and in vivo ant... see more
Laela Nur Anisah,Wasrin Syafii,Gustan Pari,Rita Kartika Sari
Samama (Anthocephalus macrophyllus) is one of a pioneer indigenous fast growing species in Indonesia which have been used as traditional medicine for various diseases. The objectives were to determine the yield extract, to analyze their antidiabetic activ... see more
Atmira Sariwati,Adi Setyo Purnomo
Effect of addition of Pseudomonas aeruginosa on 1,1,1-trichloro-2,2-bis(4-chlorophenyl)ethane (DDT) biodegradation by Fomitopsis pinicola had been investigated. P. aeruginosa was added into F. pinicola culture at 1, 3, 5, 7 and 10 mL (1 mL ˜ 1.53 x 109 P.... see more
Baiq Amelia Riyandari,Suherman Suherman,Dwi Siswanta
A study of eugenol release and its kinetics model from chitosan-alginate polyelectrolyte complex (PEC) films has been conducted. Some factors that affected the eugenol release were also studied, including the composition of chitosan-alginate PEC and the c... see more
Ahmad Fatoni,Poedji Loekitowati Hariani,Hermansyah Hermansyah,Aldes Lesbani
The synthesis chitosan-methylene bridge-Schiff base of 4,4-diaminodiphenyl ether-vanillin using casting method has been done. The aims of this research were modification chitosan with Schiff base of 4,4-diaminodiphenyl ether-vanillin, formaldehyde and its... see more
Chairil Anwar,Yogo Dwi Prasetyo,Sabirin Matsjeh,Winarto Haryadi,Eti Nurwening Sholikhah,Nendrowati Nendrowati
The synthesis of chalcone derivatives as target compounds and anticancer test against breast (T47D) and colon (WiDr) cell line had been performed. The synthesis was performed by Claisen-Schmidt condensation by using acetophenone and benzaldehyde derivativ... see more
Arif Cahyo Imawan,Yehezkiel Steven Kurniawan,Muhammad Fernadi Lukman,Jumina Jumina,Triyono Triyono,Dwi Siswanta
A synthesis and kinetic study of the urea controlled-release composite material based on isolated Na-lignosulfonate, Na-alginate and tapioca was carried out. This experiment’s aims were to isolate Na-lignosulfonate from wood sawdust and to applicate this ... see more
Fatimatul Akma Awang Ngah,Emma Izzati Zakariah,Imran Fakhar,Nurul Izzaty Hassan,Lee Yook Heng,Bohari Yamin,Siti Aishah Hasbullah
A new thiourea compound, 2,2-oxybis(ethyl)-4-(1-naphthyl)-3-thiourea 3 has been synthesized and characterized by using FTIR, 1H-NMR, 13C-NMR, and MS spectroscopy. The binding properties of with various cations were also carried out using ‘naked eye’, UV-v... see more
Muhammad Cholid Djunaidi,Pratama Jujur Wibawa,Ratna Hari Murti
Research into the synthesis and use of a novel carrier compound, thiazoethyl methyl eugenoxyacetic acid (TMEAA) for selective transport of Cu(II), Cd(II) and Cr(III) metal ions in the bulk liquid membrane (BLM) technique was conducted. TMEAA was synthesiz... see more
Yatim Lailun Ni’mah,Ju Hsiang Cheng,Ming Yao Cheng,Wei Nien Su,Bing Joe Hwang
The surface-modified Na2/3Co2/3Mn1/3O2 is coated with a conductive Poly (3,4-Ethylene dioxy thiophene)-poly (styrene sulfonate) (PEDOT/PSS) polymer, and their resulting electrochemical properties were investigated as Na-ion battery cathode. The surface-mo... see more
Defri Yona,Mochamad Arif Zainul Fuad,Nurin Hidayati
This study was conducted to analyze the spatial distribution of heavy metals from four different coastal areas in southern Pacitan, Indonesia: Pantai Watu Karung (WK), Pantai Teleng Ria (TL), Pantai Pancer (TP) dan Pantai Soge (SG). Data collected in this... see more
Ilesanmi Osasona,Kayode Aiyedatiwa,Jonathan Johnson,Oluwabamise Lekan Faboya
This study investigated the feasibility of using acid activated carbon prepared from brewery spent barley husks for the adsorption of cadmium from aqueous solution. The effects of operation parameters such as pH, contact time, adsorbent dosage, concentrat... see more
Duyeh Setiawan,Iwan Hastiawan,Asri Nurul Bashiroh
Radiotherapy is one of healing method of cancer using radionuclide elements. The radionuclide scandium-46 (46Sc) has a half-life of 83.8 days, beta emission 0.35 MeV and gamma emission 899 and 1120 keV is suitable for studying the chemical aspects, synthe... see more
Sriatun Sriatun,Taslimah Taslimah,Linda Suyati
The purpose of this research is to synthesize zeolite from sugarcane bagasse ash using cetyltrimethylammonium bromide as structure directing agent. This research used cetyltrimethylammonium bromide surfactant to invent the high porosity, surface area, aci... see more
Wega Trisunaryanti,Triyono Triyono,Ria Armunanto,Lathifah Puji Hastuti,Desinta Dwi Ristiana,Resi Vita Ginting
Hydrocracking of a-cellulose has been conducted in a semi-batch reactor at 400, 450, and 500 °C with hydrogen flow (30 mL/min.) for 4 h. Mordenite (MOR) and Co, Ni and Pd metal supported on the MOR were used as solid catalysts. The catalysts were characte... see more
Sitti Rahmawati,Cynthia Linaya Radiman,Muhamad Abdulkadir Martoprawiro
This study aims to study the conformation, the hydrogen bond network, and the stabilities of all the possible intermolecular interactions in phosphorylated nata de coco membrane with water (NDCF-(H2O)n, n = 1-5). Analysis of natural bond orbital (NBO) was... see more
Fifteen Aprila Fajrin,Agung Endro Nugroho,Rina Susilowati,Arief Nurrochmad
Ginger had been reported to ameliorate painful diabetic neuropathy (PDN) in an animal model. Gingerol and shogaol were active compounds of ginger that potentially act on transient receptor potential cation channel subfamily V member 1 (TRPV1), a key recep... see more
Tony Ibnu Sumaryada,Kania Nur Sawitri,Setyanto Tri Wahyudi
Molecular dynamics simulations of the B1 fragment of protein G (56 residues) have been performed at 325, 350, 375, 400, 450 and 500 K for 10 ns. An analysis of its structural and energetic parameters has indicated that the unfolding process of the GB1 pro... see more