25 articles in this issue
Ahmad Suseno,Karna Wijaya,Edy Heraldy,Lukman Hakim,Wahyu Dita Saputri,Gunawan Gunawan
Research on the synthesis of mesoporous silica catalyst, as well as its activity and selectivity in the hydrocracking of used palm oil, has been carried out. The research involved the preparation of mesoporous silica catalyst by varying the volume ratio o... see more
Triyono Triyono,Wega Trisunaryanti,Iip Izul Falah,Lailatul Rahmi
Natural zeolite (ZA) obtained from Wonosari, Indonesia, was treated with acetic acid (ZAA) or NaOH (ZAB), and the combination of both treatments (ZAAB) in order to increase the Si/Al ratio and catalytic performance on hydrotreatment of castor oil. The Si/... see more
Hayat Hamza Abbas,Majeed Yacoob Al-Luaibi,Mohammed Jassem Al-Assadi
This work aimed to synthesize, characterize and evaluate the thermal stability of new sulfur and selenium organochalcogenide derivatives and to test the cytotoxic activity against breast adenocarcinoma cell line (MCF-7) through conducting MTT assay and AO... see more
Andriana Kusuma Pertiwi,Choirin Annisa,Zubaidah Ningsih,Anna Safitri
The bioactive compounds naturally present in plants have great importance due to their biological characteristics. These substances could lose their active characteristics since they are highly unstable. Microencapsulation is one of the techniques to impr... see more
Fattima Al-Zahra Gabar Gassim,Ali Jabbar Jasim Makkawi
In this work, a refluxing method is used to prepare nanoparticles of zinc oxide (ZnO NPS) and zinc oxide /silver chloride nanocomposites (ZnO/AgCl NCS). The structural properties of nanocrystals are studied by Atomic Force Microscope (AFM), X-Ray Diffract... see more
Dhamiaa Abdul-Shaheed Issa,Hayder Baqer Abdullah,Faeza Abdulkareem Al-Mashal
This paper describes the synthesis of two complexes from the ligand a-(2-Salsayl)-N-phenyl nitrone with CoCl2 and CrCl2. The ligand was characterized by several spectroscopic techniques (ultraviolet/visible (UV/Vis), nuclear magnetic resonance (1H-NMR and... see more
Iyan Sopyan,Nurdiani Adiningsih,Sandra Megantara,Siska Sari Marvita
Carvedilol (CVD) is a non-selective ß-blocker. CVD is included in BCS class II. It has low water solubility. In this research, solid dispersion was used to increase the solubility and dissolution profile of CVD. In silico study using the ligand-ligand doc... see more
Fitriari Izzatunnisa Muhaimin,Sari Edi Cahyaningrum,Riska Amelia Lawarti,Dina Kartika Maharani
Hydroxyapatite is an inorganic material that is commonly used as a re-mineralizing agent. Adding natural ingredients such as green betel leaf can increase the antibacterial properties due to the presence of phenolic compounds, flavonoids, and tannins. Thi... see more
Arum Kurnia Sari,Ghina Nur Fadhilah,Irkham Irkham,Muhammad Yusuf,Shabarni Gaffar,Yeni Wahyuni Hartati
The stability characteristics associated with the shelf life of a biosensor are rarely investigated, however, they are important factors for real applications. Stability is the variation in the detection signal over a long period of storage. This study ai... see more
Saja Abdulhadi Alattar,Khalid Ajmi Sukkar,May Ali Alsaffar
In the ozonation process, the phenol degradation in wastewater undergoes a low mass transfer mechanism. In this study, ozonized packed bubble column reactor was designed and constructed to remove phenol. The reactor’s inner diameter and height were 150 an... see more
Muhammad Bagas Ananda,Fathan Aditya Sanjaya,Tami Bachrurozy,Helmi Majid Ar Rasyid,Anggraini Barlian,Akfiny Hasdi Aimon,Fitriyatul Qulub,Prihartini Widiyanti,Arie Wibowo
Silver nanoparticles (AgNPs) are fascinating materials for biomedical applications thanks to their strong antibacterial activity and biocompatibility. This study applied the green synthesis method using 0.5 wt.% Seminyak leaf extract and assisted with one... see more
Atmanto Heru Wibowo,Annisa Nur Buana Wati,Anas Santria,Abu Masykur,Maulidan Firdaus
Electrocatalytic parameters of a Pt/C standard and a sample of terbium(III) monoporphyrinato were investigated in different solutions. N electron transfer, Tafel slope, Eonset, and overpotential of the catalyst of Pt/C in different solutions were calculat... see more
Lenny Rahmawati,Rian Kurniawan,Niko Prasetyo,Sri Sudiono,Akhmad Syoufian
Synthesis and characterization of copper-and-nitrogen-codoped zirconium titanate (Cu-N-ZrTiO4) as a photocatalyst for the degradation of methylene blue (MB) have been conducted. The main purpose of this research was to investigate the co-doping effect of ... see more
Edi Pramono,Gadis Prihatin Wahyu Sejati,Sayekti Wahyuningsih,Candra Purnawan
This research studied the impact of silanized clay modification on performance and antifouling Poly(vinylidene fluoride) (PVDF) membrane toward humic acid and methylene blue filtration. Clay modification was carried out by using 3-aminopropyltriethoxysila... see more
Maria Ulfa,Windi Apriliani
This study aimed to investigate the effect of soft template variations on Zinc Sulfate Hydrate (Gunningite) synthesis and the maximum adsorption capacity of ibuprofen. This study employed the soft template method and hydrothermal at 100 °C, followed by ca... see more
Noverra Mardhatillah Nizardo,Rida Hasna Fadhilah,Ivandini Tribidasari Anggraningrum
The influence of poly(2-dimethylamino)ethyl methacrylate (PDMAEMA) block on the thermo- and pH-responsive behavior of poly(N-isopropyl acrylamide)-block-poly[(2-dimethylamino)ethyl methacrylate)] (PNIPAM-b-PDMAEMA) was studied. The block copolymers were s... see more
Akhmad Masykur Hadi Musthofa,Mindriany Syafila,Qomarudin Helmy
Up to 60–70% of the total textile dyes produced are azo dyes. An example of azo dye is methylene blue, which is commonly used in dyeing wool, silk, and cotton. This substance possessed harmful effects on the environment. Therefore, the removal process is ... see more
Ernanin Dyah Wijayanti,Anna Safitri,Dian Siswanto,Fatchiyah Fatchiyah
Skin aging is associated with decreased skin firmness and excessive pigmentation, which is caused by the activity of aging enzymes. This process can be prevented with powerful antioxidants from nature, such as ferulic acid which is abundant in rice. This ... see more
Harry Supriadi,Iga Trisnawati,Tri Handini,Sri Rinanti Susilowati,Vincent Sutresno Hadi Sujoto,Panut Mulyono,Himawan Tri Bayu Murti Petrus
From the analysis of zircon tailings using X-Ray Fluorescence (XRF), Yttrium is a rare earth element (REE) with the highest concentration compared to other REEs. The purpose of this study is to determine the best kinetic model for describing how sulfuric ... see more
Tri Windarti,Nor Basid Adiwibawa Prasetya,Ngadiwiyana Ngadiwiyana,Limpat Nulandaya
A composite of hydroxyapatite modified silica (HASiO2) and 10% (w/w) polyeugenol (PE) was synthesized to produce a calcium phosphate cement with antibacterial activity. The compatibility of the composite (HASiO2_PE) with bone filler requirements was deter... see more
Naseer Ahmed,Garnis Putri Erlista,Tri Joko Raharjo,Respati Tri Swasono,Slamet Raharjo
Bioactive peptides play an important role in targeting cancer cells. Venom protein from Naja sumatrana can be explored as a source of bioactive peptides. This research aims to identify and study the molecular docking of bioactive peptides (BPs) from tryps... see more
Kusuma Putri Suwondo,Nurul Hidayat Aprilita,Endang Tri Wahyuni
Environmental consequences during the COVID-19 pandemic have attracted attention due to the excessive use of antibiotics which lead to the release of the drug's residue, such as amoxicillin (AMX), into the environment. In this work, an advanced oxidation ... see more
Kim Ngan Thi Tran,Cao Phuong Khanh Phan,Vuong Thinh Ho,Hung Dung Chau,Thi Nhu Dung Nguyen
The production of highly efficient and reusable adsorbents that can be used in pigment treatment has been of great scientific interest. Metallic organic frameworks (MOFs) are considered a new type of material with extremely diverse structures and can be u... see more
Laela Hayu Nurani,Citra Ariani Edityaningrum,Irnawati Irnawati,Anggita Rosiana Putri,Anjar Windarsih,Any Guntarti,Abdul Rohman
Spectroscopic method in the UV-Vis region is considered the most molecular spectrometric method for content determination of a single component. However, a lot of pharmaceutical dosage forms comprise two or more components which lead to peak overlapping. ... see more
Hasim Hasim,Didah Nur Faridah,Eka Nurul Qomaliyah,Frendy Ahmad Afandi
Obesity is a complex and multifactorial disease resulting from excessive accumulation of fat. With a significant annual increase, it has become a health concern across the globe in the last decades. To tackle this problem, an exploration of traditional me... see more