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All Journal VALENSI International Journal of Renewable Energy Development Bionatura Jurnal Ekonomi & Kebijakan Publik Al-Kimia Chimica et Natura Acta ALCHEMY Jurnal Penelitian Kimia Indonesian Journal of Chemistry PENDIPA Journal of Science Education Kimia Padjadjaran
Santhy Wyantuti
FMIPA Universitas Padjajaran
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Economics, Econometrics & Finance Education Energy Environmental Science Immunology & microbiology Materials Science & Nanotechnology Mathematics

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Journal : PENDIPA Journal of Science Education

 1 
Optimasi Sintesis Ligan Diheksilditiofosfat (DHDTP) Menggunakan Response Surface Method (RSM) Hendrati, Diana; Mardhotillah, Yulia; Anggraeni, Anni; Firdaus, M. Lutfi; Wyantuti, Santhy
PendIPA Journal of Science Education Vol 6, No 1 (2022): November - February
Publisher : University of Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/pendipa.6.1.285-290

Abstract

Dihexyldithiophosphate (DHDTP) ligand is one of the homologues of dialkyldithiophosphate which is potentially better as an extractant in solvent extraction. The longer the chain in the dialkyldithophosphate compound, ability to dissolve into the organic phase is increasing compared to the shorter chain. The purpose of this study is to synthesize DHDTP ligands and find out the optimum reaction conditions to produce DHDTP ligands with optimal purity using the BoxBehnken (BBD) response surface method (RSM). DHDTP ligands are synthesized from P2S5 by reflux after addition of n-hexanol under a nitrogen gas environment. Ammonium carbonate is added to the reflux to pH 7, then evaporated to remove the solvent. The synthesized DHDTP ligand was then purified by column chromatography with a mobile phase methanol : aquadest (2.5% gradient). DHDTP ligands were examined for purity using a reverse phase HPLC with a mobile phase methanol: aquadest 3: 2. The purity of the best DHDTP synthesis results obtained was 87.34%. The DHDTP ligand formed was characterized to confirm the structure of its ligand compound by using a UV spectrophotometer in which the synthesis product showed maximum absorption at a wavelength of 212 nm and mass spectroscopy ES- with m / z 297.1687.
Review: Sintesis Dan Karakterisasi Nanopartikel Emas (AuNP) Serta Konjugasi AuNP Dengan DNA Dalam Aplikasi Biosensor Elektrokimia Egista Istioka Fazrin; Annisa Ilma Naviardianti; Santhy Wyantuti; Shabarni Gaffar; Yeni Wahyuni Hartati
PendIPA Journal of Science Education Vol 4, No 2 (2020): MARCH - JUNE
Publisher : University of Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (726.164 KB) | DOI: 10.33369/pendipa.4.2.21-39

Abstract

The use of gold nanoparticles (AuNP) is an appropriate one in the development of biosensors because it has a unique, strong adsorption, high biocompatibility, and large surface area. AuNPs can be synthesized by various methods with the same synthesis principle by reducing Au3+ to Au. This review explains the various methods of AuNP synthesis and their characteristics, the interaction of AuNP with biomolecules including DNA, and the application of AuNP-DNA bioconjugates in biosensors. Several applications of AuNP-DNA bioconjugates as electrochemical biosensors in the past two years are proposed in this review.
Co-Authors Amelia Shafira Anni Anggraeni, Anni Annisa Ilma Naviardianti Annisa Ilma Naviardianti Ari Hardianto Ari Hardianto Diana Hendrati Diana Hendrati Diana Rakhmawaty Diana Rakhmawaty Eddy Dikdik Kurnia Eddy, Diana Rakhmawaty Effendi, Syulastri Egista Istioka Fazrin Emma Rochima Erianti Siska Purnamasari Fadhilah, Riana Adisti H Bahti, Husen Hendrati, Diana Husein Hernadi Bahti Husein Hernandi Bahti Lukmanul Hakim M. Lutfi Firdaus M. Lutfi Firdaus, M. Lutfi Mahendra Permadi Mardhotillah, Yulia Mardiah, Najmah Muhammad Yusuf Nurul Auliany Nurwulanda, Salsha P Fauzia, Retna Pratomo, Uji Purba, Anita Zefanya Marchelina Ravenna Aristantia Retna Putri Fauzia Riana Adisti Fadhilah Rini Surbakti Rokhmat, Launa Silky Karenindra Sari Syahruni Shabarni Gaffar Shabarni Gaffar Shabarni Gaffar Shabarni Gaffar Shauvina, Shauvina A Sutanto, Cindy Florencia Toto Subroto Uji Pratomo Yeni Wahyuni Hartati Yeni Wahyuni Hartati Zahra, Sahlaa Alifah