Department of Chemistry: Recent submissions
Now showing items 41-60 of 2910
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Karakteristik Sensor Berbasis Kitosan/Tembaga II Oksida (CuO) dalam Mendeteksi Konsentrasi Aseton dengan Amperometri
(Universitas Sumatera Utara, 2024)Research has been done on the characteristics of sensors based on chitosan/Copper II Oxide (CuO) in detecting acetone concentrations using the amperometric method. The effect of copper II oxide addition on chitosan film ... -
Sensitivitas Elektroda Termodifikasi Kitosan/Grafena Oksida Tereduksi/Serium Oksida Dalam Mendeteksi Konsentrasi Epinefrin
(Universitas Sumatera Utara, 2024)In this research, chitosan/reduced graphene oxide (rGO)/cerium oxide (CeO2) modified electrodes have been successful in detecting epinephrine using the cyclic voltammetry method. The addition of cerium oxide is considered ... -
Karakterisasi Komposit dari Paduan EPDM/NR SIR-20 dengan Pengisi Serbuk Tanah Liat (Clay) sebagai Peredam Benturan Pintu Kendaraan (Weather Strip)
(Universitas Sumatera Utara, 2024)Composite research of EPDM/NR SIR-20 alloy with the addition of clay powder as a filler used as a car door impact absorber (weather strip). The weather strip was prepared by mixing SIR-20 natural rubber with EPDM synthetic ... -
Modifikasi Campuran Aspal Limbah Plastik Bekas Polipropilena Melalui Uji Marshal
(Universitas Sumatera Utara, 2024)Plastic waste is one source of environmental pollution in the world. The use of used plastic waste as a mixture for asphalt in road construction has become an interesting research focus in the field of chemistry. The use ... -
Pembuatan dan Karakterisasi Bioplastik Pati Biji Durian (Durio Zibethinus) dengan CMC, Kitosan dan Plastisizer Gliserol dengan Penambhan TiO2 sebagai Filler
(Universitas Sumatera Utara, 2024)The manufacture of durian seed starch bioplastics CMC, chitosan and glycerol with the addition of TiO2 as filler and the manufacture of durian seed starch bioplastics chitosan and glycerol with the addition of TiO2 as ... -
Sintesis Natrium Pati Sulfat dari Pati Ubi Kayu (Manihot esculenta) Menggunakan Asam Sulfat dalam Pelarut Etanol
(Universitas Sumatera Utara, 2024)Sodium starch sulfate was obtained from cassava starch (Manihot esculenta), which was synthesized through the sulfation reaction using 98% H2SO4 in ethanol solvent. This research was conducted in two stages, namely, isolation ... -
Sensitivitas Elektroda Berbasis Grafena Oksida Tereduksi/Kitosan/Titanium Dioksida Dalam Mendeteksi Kolesterol Dengan Siklik Voltametri
(Universitas Sumatera Utara, 2024)In this research, chitosan/reduced graphene oxide(rGO)/titanium dioxide (TiO2) modified electrodes have been successful in detecting cholesterol using the cyclic voltammetric method. The addition of titanium dioxide is ... -
Sensitivitas Elektroda Termodifikasi Kitosan/Grafena Oksida Tereduksi/Fe3O4 dalam Mendeteksi Kolesterol
(Universitas Sumatera Utara, 2024)In this research, the chitosan/rGO/Fe3O4 modified electrode has been successfully carried out in detecting cholesterol using the cyclic voltammetry method. The chitosan/rGO/Fe3O4 electrode was fabricated using the ... -
Pengaruh Variasi Penambahan Zat Aditif TiO2/ZnO dan Lilin Lebah (Beeswax) Terhadap Karakteristik Bioplastik Alginat-CMC-Sorbitol
(Universitas Sumatera Utara, 2024)The manufacture of alginate-CMC-sorbitol bioplastics and the manufacture of alginate-CMC-sorbitol-Beeswax bioplastics (Beeswax) with the manufacture of alginate-CMC-sorbitol bioplastics with TiO2/ZnO additives has been ... -
Sintesis Dan Karakterisasi Komposit Termoplastik Berbasis Lignin Tergrafting Polistirena Dengan Metode Polimerisasi Radikal Transfer Atom
(Universitas Sumatera Utara, 2024)This research examines the synthesis process and characterization of lignin-based thermoplastic composites grafted with polystyrene. This research was carried out to combine the two properties of lignin and polystyrene ... -
Isolasi dan Identifikasi Golongan Senyawa Flavonoida dari Buah Turi Merah (Sesbania grandiflora (L.) Poir)
(2024)Isolation of flavonoida compounds contained in red turi fruit (Sesbania grandiflora (L.) Poir) had been carried out by maceration extraction method using methanol solvent. The methanol concentrated extract was then ... -
Adsorpsi Zat Warna Congo Red menggunakan Adsorben Berbahan Dasar Pati Sagu dan Karboksimetil Selulosa Menurut Persamaan Langmuir dan Freundlich
(Universitas Sumatera Utara, 2024-12-30)Research on adsorbents from sago starch and carboxymethyl cellulose with aluminum sulfate and boric acid cross-binding agents applied to the adsorption of congo red dye. This study aims to determine the equilibrium time ... -
Evaluasi Penggunaan Komposit Selulosa Asetat/Karbon Dots sebagai Bahan Pelepasan Obat
(Universitas Sumatera Utara, 2024)Composite materials of cellulose acetate with Carbon Dots (CDs) offer significant potential as efficient drug delivery systems. This study evaluates cellulose acetate/CDs (CA/CDs) composites as drug release materials by ... -
Sintesis 2-Etilheksil Oleat dari Esterifikasi 2-Etilheksil Alkohol dan Asam Oleat pada Perbandingan Rasio Molar dan Berat Enzim Lipase Menggunakan Radiasi Mikrowave
(Universitas Sumatera Utara, 2024)Synthesis of 2-Ethylhexyl Oleate from oleic acid and 2-ethylhexyl alcohol through esterification reaction using lipase enzyme as catalyst and microwave radiation has been conducted. The reaction conditions carried out in ... -
Pembuatan 2-Etilheksil Oleat dari Esterifikasi 2-Etilheksil Alkohol dan Asam Oleat pada Perbandingan Waktu Reaksi dan Daya Mikrowave Menggunakan Katalis Enzim Lipase
(Universitas Sumatera Utara, 2024)The production of 2-Ethylhexyl Oleate from oleic acid and 2-Ethylhexyl alcohol has been performed through esterification reaction using lipase enzyme as catalyst and microwave radiation. The parameters studied in this ... -
Modifikasi Aspal dengan Karet Alam Reaktif: Fungsionalisasi Karet Alam dengan Maleat Anhidrat (MA), Glisidil Metakrilat (GMA) untuk Meningkatkan Kinerja Aspal
(Universitas Sumatera Utara, 2024)Natural rubber biopolymer has the potential to be used as an additive in the manufacture of polymer modified asphalt or rubber asphalt. This study aims to synthesize a reactive polymer based on natural rubber (SIR-20) ... -
Sintesis Nitrogen-Doped Carbon Dots dari Cangkang Kemiri (Aleurites moluccana) sebagai Sistem Penghantar Obat Amlodipine Besylate
(Universitas Sumatera Utara, 2024)Carbon dots (CDs) are fluorescent nanoparticles synthesized from biomass waste. Candlenut shell is a potential biomass waste that is abundantly available with a chemical content of 49.22% holocellulose, 54.46% lignin, and ... -
Optimasi Grafting Mesopori Silika Template Metil Ester Minyak Jarak Menggunakan 3 Aminopropiltrietoksisilan (APTES) sebagai Adsorben Ion Logam Berat
(Universitas Sumatera Utara, 2024)Research has been carried out on the optimization of mesoporous silica template castor oil methyl ester (MS-TMEMJ) grafting using 3-aminopropyltriethoxysilane (APTES) compound. This study aims to evaluate the optimum time ... -
Nanopartikel Pati Sukun (Artocarpus altilis) Termodifikasi Ganda secara Ikat Silang – Oksidasi sebagai Sistem Penghantar Sediaan Oral
(Universitas Sumatera Utara, 2024)Breadfruit (Artocarpus altilis) contains starch up to 8.93 %, and starch has a very wide range of benefits in the industrial world. The physicochemical properties of starch have obstacles when used directly including ... -
Pembuatan Edible Film Antibakteri dari Pati Fosfat Umbut Kelapa Gading (C. Nucifera var eburnea) yang Diinkorporasi dengan Kitosan-Nisin
(Universitas Sumatera Utara, 2024)Edible starch phosphate film was obtained from the starch of ivory coconut shoots (C. Nucifera var eburnea) which was modified by cross-linking using trisodium trimetaphosphate with a weight of 0.9 g of trisodium ...