15 articles in this issue
Elisabeth Catherina Widjajakusuma,Alessandra Villa,Gerhard Stock
Molecular dynamics has been employed to study the effect of ion treatment on the stability of 14-nucleotide RNA hairpin of Coxsackievirus B3. Three AMBER force fields were used: AMBER94, AMBER98, and AMBER99, which showed no significant structural differe... see more
Dhananjay B Sarode,Sopan T Ingle,Sanjay B Attarde
A new method for determination of stoichiometry of colorless complexes by using atomic absorption spectrophotometric technique in continuous variation method and slope ratio method was described here. This method can be used in same manner as that of mole... see more
Deswati Deswati,Hamzar Suyani,Safni Safni
A sensitive and selective absorptive stripping voltammetric (AdSV) method to determine Cd(II), Cu(II), Pb(II) and Zn(II) in sea water is proposed. The aim of this study was to get optimum condition for the determination of Cd(II), Cu(II), Pb(II) and Zn(II... see more
Susy Yunita Prabawati,Jumina Jumina,Sri Juari Santosa,Mustofa Mustofa,Keisuke Ohto
A research has been conducted to investigate the capability of a series of novel calix[6]arenes-based polymers: poly-monoallyloxycalix[6]arene (2a), poly-monoallyloxypenta-estercalix[6]arene (2b) and poly-monoallyloxypenta-acidcalix[6]arene (2c) for trapp... see more
Uripto Trisno Santoso,Radna Nurmasari,Dewi Umaningrum,Sri Juari Santosa,Bambang Rusdiarso,Dwi Siswanta
Immobilization of humic acid (HA) onto chitosan using tosylation method with 1,4-butanediol as a spacer arm has been evaluated. Chitosan was phthaloylated selectively using phthalic anhydride in dimethylformamide as solvent with addition of 5% water (v/v)... see more
Ermin Katrin Winarno
Gamma irradiation has been used to preserve an herbal medicine, but it has not been known the effects of gamma irradiation on their bioactivity as an anticancer agent yet. In the previous study, the gamma irradiation on mahkota dewa bark with the optimum ... see more
Suryadi Budi Utomo,Jumina Jumina,Dwi Siswanta,Mustofa Mustofa
The ability of tetrakis-thiomethyl-C-4-methoxyphenylcalix[4]resorcinarene for trapping Pb(II) and Cd(II) from aqueous solution at different pH, contact times, and initial metal concentration was investigated. Concentration of metal ions before and after i... see more
Dwi Hudiyanti,Tri Joko Raharjo,Narsito Narsito,Sri Noegrohati
Cryogenic transmission electron microscopy (Cryo-TEM) was used to investigate the aggregates morphology and properties of candle tree (Aleurites moluccana) endosperm, sesame (Sesamum indicum L. syn.) seeds, and coconut (Cocos nucifera) endosperm phospholi... see more
Susilawati Susilawati,Sabirin Matsjeh,Harno Dwi Pranowo,Chairil Anwar
Mahkota dewa (Phaleria macrocarpa (Scheff.) Boerl.) which is belong to family of Thymelaeaceae is one of Indonesian traditional medicines. Chemical constituent has been isolated from bark of mahkota dewa. Sample was extracted with methanol. Concentrated m... see more
Muhammad Idham Darussalam Mardjan,Retno Ambarwati,Sabirin Matsjeh,Tutik Dwi Wahyuningsih,Winarto Haryadi
Synthesis of flavanone-6-carboxylic acid derivatives had been conducted via the route of chalcone. The synthesis was carried out from salicylic acid derivative, i.e. 4-hydroxybenzoic acid, via esterification, Fries rearrangement, Claisen-Schmidt condensat... see more
Ahyar Ahmad
We cloned and sequenced cDNA encoding p48 subunit of the chicken CAF-1, chCAF-1p48, and histone acetyltransferase-1, chHAT-1 from chicken DT40 cell lines. We showed that the p48 subunit of CAF-1 tightly binds to two regions of chicken histone deacetylase ... see more
Dasril Basir,Julinar Julinar
This paper describes 3-hydroxyurs-12-en-28-oic acid and its structural isomer 3-hydroxyolean-12-en-28-oic acid isolated from Fragraea fragrans fruits and their biological activities; anti-tumor, anti-inflammation, anti-microbial, and anti-fungal included ... see more
Fahimah Martak,Hamzah Fansuri,Sekarayu Dianing Putri
Binuclear complex, [N(n-C4H9)4][MnIIFeIII(ox)3] (ox=oxalate), has been synthesized and characterized. Binuclear complex with formula of [N(n-C4H9)4][MnIIFeIII(ox)3] was synthesized by forming precursor K3[Fe(ox)3] which was followed by adding manganese ch... see more
Buhani Buhani,Suharso Suharso,Liza Aprilia
Chemical stability, reusability, and adsorption selectivity of Cd2+ ionic imprinted Nannochloropsis sp with silica matrix (Cd(II)-IIP) from precursor tetraethyl orthosilicate (TEOS) have been studied through adsorption experiment series with batch method.... see more
Ahmad Ridhay,Alfian Noor,Nunuk H. Soekamto,Tjodi Harlim,Ian van Altena
A stigmasterol glycoside (stigmast-5,22-dien-3-O-ß-D-glucopyranoside) has been isolated from the chloroform fraction of root wood of Melochia umbellata (Houtt) Stapf var. degrabrata K. The compound structure was determined on spectroscopic evidences inclu... see more