Browsing Master Theses by Issue Date
Now showing items 1-20 of 381
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Sintesis Biopelumas Ester dari Minyak Goreng Bekas dan Pentaeritritol Menggunakan Green Catalyst/Solvent dan Optimasinya dengan Desain Box-Behnken
(Universitas Sumatera Utara, 2025-07-11)Ester biolubricant has been synthesized from waste cooking oil (WCO) and pentaerythritol by using catalyst and solvent Deep Eutectic Solvents (DESs) and homogenizer. WCO refinery was by addition of 0.05% (v/v) H3PO4 and ... -
Aplikasi Entomologi Forensik Menggunakan Serangga Air Untuk Menganalisis Kualitas Air Sungai Sebagai Upaya Peningkatan Kesehatan Ekosistem Sungai Dari Cemaran Logam
(Universitas Sumatera Utara, 2025)Forensic Entomology is a science that utilizes insects in identification. Metals are often found in river water polluted by industrial processes. To separate metals from river water, blood clam shells (Anadara granosa) ... -
Isolasi Senyawa Flavonoid dan aktivitas Antioksidan Ekstrak Etil Asetat Biji Okra (Abelmoschus esculentus L.) sebagai sediaan Formulasi Face Toner.
(Universitas Sumatera Utara, 2025)Okra fruit (Abelmoschus esculentus L.) from the Malvaceae family has seeds that are thought to have flavonoid secondary metabolite compounds and have antioxidant activity that can be utilized as a preparation for face ... -
Uji Aktivitas Antioksidan Dan Isolasi Ekstrak Etil Asetat Daun Jambu Biji Kristal (Psidium guajava L.) Serta Pemanfaatannya Sebagai Sunscreen
(Universitas Sumatera Utara, 2025)Crystal guava plant (P. guajava L.) is one of the species of the Myrtaceae family that has potential allelopathic properties. This study aims to test the antioxidant bioactivity, determine the SPF value of sunscreen ... -
Uji Bioaktivitas Antidiabetes dan Identifikasi Senyawa Fenolik dari Fraksi Etil Asetat Kulit Buah Kembang Merak (Caesalpinia pulcherrima (L.) Sw.)
(Universitas Sumatera Utara, 2025)Peacock flower plant (Caesalpinia pulcherrima (L.) Sw.) is traditionally used in medicine and is thought to be influenced by the presence of secondary metabolites. This study aims to test the antidiabetic bioactivity ... -
Sintesis Hijau Nanopartikel TiO2 dari Titanium Tetraisopropoksida Doping Barium menggunakan Ekstrak Daun Kelapa Sawit sebagai Fotokatalis
(Universitas Sumatera Utara, 2025)A study was conducted on the green synthesis of TiO2. This research aimed to green synthesis TiO2 using titanium tetraisopropoxide with palm leaf extract and barium doping to reduce the band gap energy in the degradation ... -
Potensi Nanopartikel Pati Sukun (Artocarpus altilis) Terasetilasi Sebagai Matriks Enkapsulasi Doksorubisin Hidroklorida
(Universitas Sumatera Utara, 2025)Breadfruit starch (Artocarpus altilis) is a natural biopolymer with promising potential as a matrix for drug encapsulation. This study aimed to synthesize and chemically modify breadfruit starch nanoparticles via acid ... -
Selektivitas dan Sensitivitas Nitrogen-Doped Carbon Dots Berbasis D-Glukosa Monohidrat yang Disintesis dengan Metode Hidrotermal untuk Deteksi Ciprofloxacin
(Universitas Sumatera Utara, 2025)Peningkatan penggunaan ciprofloxacin (CIP), antibiotik golongan kuinolon, di Indonesia dan global menimbulkan kekhawatiran terhadap resistensi antimikroba dan kontaminasi lingkungan akibat residu obat yang tidak sepenuhnya ... -
Penggunaan Adsorben Carbonated Hydroxypatite (CHA) Berbahan Biowaste Cangkang Kerang Hijau (Perna viridis) dalam Analisa 3,4-Methylenedioxymethamphetamine menggunakan GCMS
(Universitas Sumatera Utara, 2025)Green mussels produce shell waste that negatively impacts the environment. Green mussel shells contain 99.5% calcium. According to data from the North Sumatra Regional Police (Polda Sumut) up to July 2024, there were 2,400 ... -
Sintesis Carbon Dots dan Nitrogen-Doped Carbon Dots Berbasis Cangkang Kemiri (Aleuritas moluccana) sebagai Bioimaging Candida albicans
(Universitas Sumatera Utara, 2025)Carbon dots (CDs) are fluorescent nanomaterials with particle diameters below 10 nm that can be synthesized from biomass. Candlenut shells are lignocellulosic biomass waste with potential as precursors for CDs synthesis ... -
Aktivitas Antioksidan dan Antibakteri dari Ekstrak Daun Eucalyptus (Eucalyptus pellita) serta Isolasi Senyawa Flavonoid
(Universitas Sumatera Utara, 2024)Eucalyptus pellita is one of the species from the Myrtaceae family that is considered a potential allelopath. This study aims to test the bioactivity and isolate flavonoid compound from E. pellita leaf extract. E. pellita ... -
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 ... -
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 ... -
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 ... -
Sintesis Alkanolamida Asam Lemak dari Palm Fatty Acid Distillate (PFAD) dan Etanolamin Menggunakan Radiasi Mikrowave
(Universitas Sumatera Utara, 2023)Synthesis of alkanolamide from the amidation of PFAD and monoethanolamine without catalyst under microwave iradiation has been studied. Parameters of the molar ratio of PFAD to monoethanolamine, reaction time and microwave ... -
Sintesis Nitrogen-Doped Carbon Dots Menggunakan Metode Solvotermal dari Kulit Jengkol sebagai Pendeteksi Ion Hg2+
(Universitas Sumatera Utara, 2023)Nitrogen Doped-Carbon dots are fluorescent nanoparticles that are easily synthesized from natural raw materials. Jengkol peel is a biomass waste containing phytochemical compounds that can be used as a precursor to synthesize ... -
Penyediaan Hidrogel Berbasis Selulosa Bakteri/ Polivinil Alkohol-Mikroenkapsulasi Ekstrak Daun Kemuning (Murraya paniculata (L.) Jack) Berpotensi sebagai Bahan Material Pembalut Luka
(Universitas Sumatera Utara, 2023)The development of traditional wound dressings such as gauze into modern hydrogel wound dressings is currently being developed. Hydrogel based on SB/PVAMEDK which has the potential as a wound dressing material has been ... -
Sensitivitas Elektroda Termodifikasi Kitosan/Oksida Grafena Tereduksi dalam Mendeteksi Konsentrasi Pupuk Urea Menggunakan Voltametri Siklik
(Universitas Sumatera Utara, 2023)Chitosan (CS)/reduced graphene oxide (rGO) modified platinum electrode has been successfully tested using cyclic voltammetry (CV) method to detect urea fertilizer concentration. Chitosan-reduced graphene oxide (rGO) was ... -
Analisis Metamfetamin pada Maggot Serangga Necrophagous Menggunakan Gas Chromatography- Mass Spectrometry (GCMS) sebagai Aplikasi Entomotoksikologi Forensik
(Universitas Sumatera Utara, 2023)Cases of death of methamphetamine abusers in Indonesia were increasing, where bodies are generally found after several days of investigation, so forensic entomotoxicology uses insects to detect methamphetamine. The use ...