14 articles in this issue
Muhammad Idiris Saleh,Eny Kusrini,Abdulssalam Salhin,Rohana Adnan,Ismail Ab. Rahman,Bahruddin Saad,Bohari M. Yamin
The reaction of benzo-15-crown-5 (C14H20O5) ligand with La(NO3)3.7H2O in the presence of HBr has resulted in the production of an exotic sandwich complex, [LaC28H36Br4O10][3Br]. The crystal system is triclinic with space group P1, a = 12.5834(14) Å, b = 1... see more
Suharso Suharso,Gordon Parkinson,Mark Ogden
The growth rates of borax crystals from aqueous solutions in the (010) direction at various flow rates were measured. The observed variations of the growth rate can be represented by a normal distribution. It was found that there is no correlation b... see more
Silvester Tursiloadi,Hiroaki Imai,Hiroshi Hirashima
Porous aerogel of titania-alumina were prepared by hydrolysis of metal alkoxides and supercritical extraction of the solvent. Monolithic wet-gel of 0.2TiO2-0.8Al2O3, prepared by hydrolysis of metal alkoxides in alcoholic solutions, and the solvent i... see more
Endang Tri Wahyuni,Ngatidjo Hadipranoto,Iqmal Tahir,Bambang Haryo Gatut Tamtama
In order to solve environmental problems due to chlorophenol compound and which is hazardous and carcinogenic, the effect of Cr(VI) ions on the chlorophenol photodegradation effectiveness has been evaluated. Photodegradation process was carried out in a c... see more
Suyanta Suyanta,Sri Sudiono,Sri Juari Santosa
Determination of rate and stability constants of adsorption in competitive adsorption of Cr(III) and Cd(II) on humic acid by using the new model of kinetic formulation has been done. The new model based on assumption that those adsorption was first order ... see more
Uripto Trisno Santoso,Herdiansyah Herdiansyah,Sri Juari Santosa,Dwi Siswanta
The process of reduction and oxidation of soluble chromium in humic acid subfraction-sensitized photocatalyst was studied. Humic acid was extracted from peat soil sampled in Gambut District, South Kalimantan. Humic acid (HA) was fractionated to humic acid... see more
Mudasir Mudasir,Karna Wijaya,Endang Tri Wahyuni,Hidenari Inoue
A research about base-pair specificity of the DNA binding of [Fe(phen)3]2+, [Fe(phen)2(dip)]2+ and [Fe(phen)(dip)2]2+ complexes and the effect of calf-thymus DNA (ct-DNA) binding of these metal complexes on thermal denaturation of ct-DNA has been carried ... see more
Enade Perdana Istyastono,Rr. Sri Untari Siwi S.M.P,Andreas Asdi Utama,Supardjan A.M
Inflammation is the response of living tissues to injury. The process affects physiological changes such as erythema, edema, asthma and fever. Non-steroid Anti-inflammatory Drugs (NSAIDs) have been developed since they could inhibit inflammation process b... see more
Adhitasari Suratman,Buchari Buchari,Indra Noviandri,Suryo Gandasasmita
Electropolymerization processes of pyrrole and the usage of polypyrrole membrane as lysine and alanine deliverance have been studied by cyclic voltammetry technique. Polypyrrole membrane was prepared by electropolymerization processes of pyrrole in water ... see more
Elvina Dhiaul Iftitah,Hardjono Sastrohamidjojo,M. Muchalal
The reaction of catalytic cyclisation of (+)-citronellal has been done using g-alumina and Zn/?-alumina as catalysts. Zn/?-alumina catalyst was prepared by impregnation of ZnBr2 into solid of ?-alumina in methanol as a solvent. The calcination process is ... see more
Tutik Dwi Wahyuningsih
3-(4'-Bromophenyl)-4,6-dimethoxy-2-methylindole has been synthesized from 4,6-dimethoxyaniline via the modified Bischler method. Reaction of 4,6-dimethoxyaniline with 2,4-dibromopropiophenone gave an aniline ketone in 85%, and then it was protected to giv... see more
Laode Rijai,Supriyatna Sutardjo,Husein Hernandi Bahti,Unang Supratman,Rymond J. Rumampuk,W.C. Taylor
A triterpenoid saponin have been isolated from n-butanol fraction of the seeds of kolowe (Chydenanthus excelsus). The structure was determined as 3-O-[ß-D-glucopyranosyl(1?3)-ß-D-xylopyranosyl(1?3)- ß - D-glucuronopyranosyloxy]- 22a -O-(2-methylbutiroylox... see more
Sismindari Sismindari,Retno S. Sudibyo,Endang Astuti
C. mangga Val. has been used as an alternative remedy for cancer in Yogyakarta. The protein fraction of C. mangga was identified to contain Ribosome-inactivating Protein which cleave supercoiled double stranded DNA in vitro. In this experiment, the protei... see more
Ria Armunanto,Sri Sudiono
Relation of electronic structures with their anti malaria activities on artemisinin derivatives was evaluated by means of quantitative structure activity relationship (QSAR) method. To describe electronic structures, atomic charges and dipol moments calcu... see more