25 articles in this issue
Siti Machmudah,Widiyastuti Widiyastuti,Wahyudiono Wahyudiono,Sugeng Winardi,Hideki Kanda,Motonobu Goto
A low-temperature hydrothermal synthesis technique was employed as a medium to produce ceria-zirconia mixed oxides particles at temperatures of 200–300 °C and pressure of 10 MPa in a batch process. At these conditions, the average crystallite sizes of cer... see more
Nahzim Rahmat,Endang Tri Wahyuni,Adhitasari Suratman
The doping of TiO2 by Ag(I) from [Ag(S2O3)2]3– contained in radiophotography wastewater by photoreduction method has been performed. TiO2/AgNPs photocatalyst was examined for its activity as an antifungal material for the inhibition of C. albicans in wate... see more
Nahar Cahyandaru,Endang Tri Wahyuni,Nuryono Nuryono
A study to improve the performance of andesite mortar and rock consolidated with tetraethylorthosilicate (TEOS) sol and a solvent of ethanol in the presence of titanium tetraisopropoxyde (TTIP) and silica particles has been conducted. The improvements inc... see more
Febi Yusniyanti,Wega Trisunaryanti,Triyono Triyono
Acid-alkaline treatment using acetic acid and sodium hydroxide (NaOH) were applied on mordenite (MOR) to increase the Si/Al ratio and surface area properties. Various time treatment (3, 6, and 9 h) and concentration of acetic acid (6, 9, and 12 M) were us... see more
Siti Wahidah Puasa,Kamariah Noor Ismail,Muhammad Amarul Aliff Bin Mahadi,Nur Ain Zainuddin,Mohd Nazmi Mohd Mukelas
Wastewater produced from the electroplating industry generally consists of heavy metals mixture and organic materials that need to be treated before it can be discharged to the environment. Thus, the present investigation was focused on the selectivity re... see more
Yehezkiel Steven Kurniawan,Hendrik Oktendy Lintang,Leny Yuliati
In this work, we reported the synthesis of green-emissive composite materials of zinc oxide (ZnO) and isolated betacyanin pigment from red dragon fruit (RDF) extract utilizing organic linkers, i.e. (3-chloropropyl)trimethoxysilane (CPTMS) and (3-aminoprop... see more
Isman Kurniawan,Muhammad Salman Fareza,Ponco Iswanto
Malaria is a disease that commonly infects humans in many tropical areas. This disease becomes a serious problem because of the high resistance of Plasmodium parasite against the well-established antimalarial agents, such as Artemisinin. Hence, new potent... see more
Putri Nurul Amalia,Iman Abdullah,Dyah Utami Cahyaning Rahayu,Yuni Krisyuningsih Krisnandi
Carbon dioxide (CO2) is a compound that can potentially be used as a carbon source in the synthesis of fine chemicals. However, the utilization of CO2 is still constrained due to its inert and stable nature. Therefore, the presence of a catalyst is needed... see more
Alwi Gery Agustan Siregar,Renita Manurung,Taslim Taslim
In this study, silica derived from corncobs impregnated with sodium hydroxide to obtain sodium silicate was calcined, prepared, and employed as a solid base catalyst for the conversion of oils to biodiesel. The catalyst was characterized by X-Ray Diffract... see more
Gunawan Gunawan,Abdul Haris,Didik Setiyo Widodo,Linda Suyati,Wilman Septina
Methylene blue degradation carried out using cadmium sulfide (CdS) photoanode in photofuel cell (PFC) had been done. CdS synthesized by chemical bath deposition (CBD) on the FTO substrate was used as anode and platinum as a cathode in photoelectrochemical... see more
Yayuk Astuti,Brigita Maria Listyani,Linda Suyati,Adi Darmawan
Research on synthesis of bismuth oxide (Bi2O3) using sol-gel method with varying calcination temperatures at 500, 600, and 700 °C has been done. This study aims to determine the effect of calcination temperature on the characteristics of the obtained prod... see more
Rudy Syah Putra,Alfi Ihda Amalia,Naila Zahrotul Jannah
The removal of cesium from artificially contaminated soil using electrokinetic remediation with nitric and acetic acid as electrolytes had been evaluated. In this study, uncontaminated soil was taken from four different sampling points (i.e., A, B, C, and... see more
Eti Rohaeti,Fadila Karunina,Mohamad Rafi
Syzygium polyanthum, known as salam in Indonesia, which is rich in phenolics compounds with high antioxidant activity. In this study, we performed the determination of total phenolics and characterization of the antioxidant activity of S. polyanthum leave... see more
Hariyanti Hariyanti,Kusmadi Kurmardi,Arry Yanuar,Hayun Hayun
The estrogen receptor alpha (ERa) plays an important role in breast development and pro-proliferation signal activation in the normal and cancerous breast. The ERa inhibitors were potentially active as cytotoxic agents against breast cancer. This study wa... see more
Muhammad Al Rizqi Dharma Fauzi,Esti Hendradi,Pratiwi Pudjiastuti,Riyanto Teguh Widodo
In drug release kinetics, the drug-matrix interaction is one of the important mechanisms to be dictated. Unfortunately, there is still minimum information discussing the effect of interaction between a drug and its matrix to the release profile of the dru... see more
Muhamad Faid A Kadir,Agustono Wibowo,Fatimah Salim,El Hassane Anouar,Khalijah Awang,Moses Kiprotich Langat,Rohaya Ahmad
Andrographolide, the major constituent from the terrestrial plant Andrographis paniculata is a much-studied bioactive ent-labdane diterpene lactone and has become an important medicinal intermediate. Its structure as determined by X-ray crystallography ha... see more
Ngadiwiyana Ngadiwiyana,Nor Basid Adiwibawa Prasetya,Gunawan Gunawan,Tutuk Djoko Kusworo,Heru Susanto
Synthesis biopolymer of sulfonated copolymer eugenol-diallyl phthalate (PEGDAF), its characterization, and study of proton exchange polymer membrane properties had been done. This synthesis was conducted by eugenol and diallyl phthalate reaction to form P... see more
Anuoluwa Abimbola Akinsiku,Joseph Adeyemi Adekoya,Enock Olugbenga Dare
A sustainable method was considered for the preparation of nanosilver and its allied nanoparticles. Nicotiana tabacum, an abused plant, has found an application as a bio-chemical instead of lethal chemical in the synthesis of nanoparticles. As part of gre... see more
Bahaa Malik Altahir,Omar Abdulazeez,Sarmad Bahjat Dikran,Keith Edward Taylor
Two simple methods for the determination of eugenol were developed. The first depends on the oxidative coupling of eugenol with p-amino-N,N-dimethylaniline (PADA) in the presence of K3[Fe(CN)6]. A linear regression calibration plot for eugenol was constru... see more
Herlina Rasyid,Bambang Purwono,Harno Dwi Pranowo
Erlotinib, Afatinib, and WZ4002 are quinazoline derivative compounds and classified as first, second, and third-generation EGFR inhibitor. All inhibitors have been given directly to cancer patients for many years but find some resistance. These three comp... see more
Zainab Mohammad Saigl,Arwa Mohammed Ahmed
Natural pomegranate peels (PPs) ground powder was proved as effective natural biomass for the separation of RhB from different aqueous media by batch adsorption experiments. Several parameters that affect the maximum adsorption capacity toward RhB dye, e.... see more
Abdul Rohman,Wiranti Sri Rahayu,Sudjadi Sudjadi,Sudibyo Martono
The presence of dog meat is a crucial issue because dog meat is non-halal meat for Muslims. The objective of this study was to design and validate species-specific primer for the identification of dog meat DNA in meatball using real-time polymerase chain ... see more
Farah Hafidzah,Mohd Bijarimi,Waleed Alhadadi,Suriyati Salleh,Mohammad Norazmi,Erna Normaya
This paper reports the effects of polypropylene-graft-maleic anhydride (PP-g-MA) and graphene nanoplatelet (GNP on tensile stress of various PLA/PP weight ratio. The PLA/PP blends prepared with the ratio 70/30, 80/20, and 90/10 with the addition of PP-g-M... see more
Enade Perdana Istyastono,Vivitri Dewi Prasasty
One of the key targets in the drug development for potential Alzheimer’s disease (AD) therapeutics is the search for acetylcholinesterase enzyme (AChE) inhibitors. Very recently, a pentapeptide AEYTR was reported as a potential inhibitor for AChE. The pep... see more
Mellia Harumi,Rian Kurniawan,Agustiwandina Saputri,Dian Hanna Saraswati,Meissha Ayu Ardini,Sri Sudiono
Electronic waste (e-waste) has been confirmed containing some precious metals such as gold and silver. Mangosteen peel waste as eco-friendly adsorbent has been studied to recover Au(III) and Ag(I) successfully. Recovery was started through adsorbent prepa... see more