Browsing Undergraduate Theses by Issue Date
Now showing items 1-20 of 1307
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Sintesis Karbon Dots (CDs) Emisi Ganda Menggunakan Metode Hidrotermal dengan Penambahan Etilendiamin Sebagai Agen Pasivasi
(Universitas Sumatera Utara, 2025)Carbon dots are carbon nanoparticles with sp2/sp3 hybridization structures that exhibit single or dual emission during fluorescence phenomena. Dual-emission carbon dots offer advantageous excitation-emission characteristics ... -
Sintesis dan Karakterisasi Reduced Graphene Oxide (RGO) Terdoping Nanopartikel Besi Oksida (Fe2O3) sebagai Eletroda Baterai Primer
(Universitas Sumatera Utara, 2025)A study has been conducted on the Synthesis and Characterization of Reduced Graphene Oxide (RGO) Doped with Iron Oxide (Fe2O3) Nanoparticles as Primary Battery Electrodes. The purpose of this study was to analyze the ... -
Pemanfaatan Zeolit Sintesis dari Limbah Fly Ash Sebagai Adsorben Logam Mangan (Mn) pada Air Sumur Bor di Kawasan Deli Tua
(Universitas Sumatera Utara, 2025)Fly ash waste is a waste that has not received optimal treatment in its utilization until now. Fly Ash has a high Silica (Si) and Aluminum (Al) content so it is suitable to be used as a synthetic zeolite that has an ... -
Formulasi Sediaan Krim Tabir Surya dari Karboksimetil Kitosan dan Penentuan Nilai SPF (Sun Protecting Factor) secara In Vitro
(Universitas Sumatera Utara, 2025)A study has been conducted on the use of carboxymethyl chitosan (KMK) in the formulation of sunscreen cream preparations as a skin protector from excessive sunlight. Sunscreen is a cosmetic ingredient that scatters UV ... -
Pemanfaatan Ekstrak Etanol Mahkota Nanas (Ananas Comosus L. Merr.) sebagai Antioksidan pada Sediaan Moisturizing Gel
(Universitas Sumatera Utara, 2025)Moisturizing gel is one of the treatments that aims to improve dry skin with ingredients contained in cosmetics. Pineapple crown (Ananas comosus L. Merr) is known to contain flavonoid compounds that have the potential to ... -
Penggunaan Nanopartikel Kitosan untuk Enkapsulasi Penghantaran Bahan Aktif pada Sediaan Facial Cleansing
(Universitas Sumatera Utara, 2025)The development of natural science has given birth to various products in the world of cosmetics, for example facial cleansing. Facial cleansing is a beauty product made from surfactants and active ingredients to cleanse ... -
Penurunan Kadar Logam Besi (Fe) Menggunakan Karbon Aktif dari Tongkol Jagung (Zea Mays) sebagai Adsorben dengan Variasi Aktivator Asam Fosfat (H3PO4)
(Universitas Sumatera Utara, 2025)Activated carbon is an amorphous compound produced from materials containing carbon. One of the materials that can be used to make activated carbon is corn cob husks which are still underutilized. This research was conducted ... -
Adsorpsi Logam Pb pada Adsorbent Berbasis Karboksimetil Selulosa dan Hidroksipropil Metil Selulosa dengan Divinil Sulfon sebagai Agen Ikat Silang
(Universitas Sumatera Utara, 2025)This study examines the adsorption process of Pb metal on adsorbents based on carboxymethyl cellulose (CMC) and hydroxypropyl methyl cellulose (HPMC) with divinyl sulfone (DVS) as a crosslinking agent. The adsorbent was ... -
Analisa Logam Berat Plumbum (Pb) di Lahan Eks-Konsesi Pt TPL Desa Nagasaribu dengan Metode Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES)
(Universitas Sumatera Utara, 2025)This study analyzes the heavy metal Lead (Pb) content in two ex-concession lands with different fertilization and spraying activities. In Land I (last activity in 2020), the highest lead concentration was found at Point ... -
Impregnasi Fe/Ni Pada Mesopori Silika Template Metil Ester Risinoleat Sebagai Adsorben Cr6+ Dengan Variasi Penambahan Massa Fe
(Universitas Sumatera Utara, 2025)Chromium, especially Cr6+, is a heavy metal that is often used in industry can pollute the aquatic environment, and has high toxicity for humans, therefore, Cr6+ must be removed from the aquatic environment. Mesoporous ... -
Sintesis Basa Schiff Pati Dialdehid dari Buah Sukun (Artocarpus Altilis) Menggunakan Metode Mikrowave Serta Potensinya sebagai Antibakteri
(Universitas Sumatera Utara, 2025)Schiff's base was synthesized through a condensation reaction between dialdehyde breadfruit starch (PD) and ethylenediamine, where PD was obtained from starch oxidation using sodium periodate oxidizer. The formation of ... -
Isolasi dan Identifikasi Golongan Senyawa Flavonoida dari Daun Kacangan MB (Mucuna bracteata DC. ex Kurz)
(Universitas Sumatera Utara, 2025)Isolation and identification of flavonoid compounds from the leaves of MB beans (M. bracteata DC. ex Kurz) had been carried out through maceration extraction with methanol solvent. The methanol extracted was concentrated, ... -
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 ... -
Isolasi dan Identifikasi golongan senyawa flavonoid dari Kulit Batang Goring- Goring (Glochidion Rubrum Blume)
(Universitas Sumatera Utara, 2024)Isolation and identification of flavonoid compound from the bark of goring-goring (Glochidion rubrum Blume) had been carried out through the maceration extraction stage with methanol solvent. The methanol extract is ... -
Isolasi dan Identifikasi Golongan Senyawa Flavonoid dari Kulit Batang Sambung Nyawa (Gynura Procumbens (Lour.)Merr.)
(Universitas Sumatera Utara, 2024)Isolation and identification of the flavonoid compound from the stem bark of sambung nyawa (Gynura procumbens (Lour.) Merr.) had been done by maceration extraction technique with methanol solvent. The methanol extract ... -
Formulasi dan Karakterisasi Sediaan Body Scrub Karboksimetil Kitosan sebagai Antibakteri
(Universitas Sumatera Utara, 2024)Chitosan has a well-developed function in a variety of fields and products. One of the interesting functional properties of the chitosan to develop is its properties as antibacterial that can remove dead skin cells and ... -
Pembuatan 2-Etilheksil Miristat dari Esterifikasi 2-Etilheksil Alkohol dan Asam Miristat pada Perbandingan Waktu Reaksi dan Daya Mikrowave Menggunakan Katalis Enzim Lipase
(Universitas Sumatera Utara, 2024)The production of 2-Ethylhexyl Miristat from myristic acid and 2-Ethylhexyl alcohol has been performed through esterification reaction using lipase enzyme as catalyst and microwave radiation. The parameters studied in ... -
Sintesis Natrium Selulosa Sulfat dari Limbah Kertas melalui Reaksi Sulfasi pada Pelarut Etanol
(Universitas Sumatera Utara, 2024)Synthesis of sodium cellulose sulfate by sulfation reaction between cellulose from paper and sulfuric acid. Preparation of paper samples was carried out without treatment, washing using NaOH 2% and NaOCl 2%, and isolation ... -
Sintesis Kardanil Metil Eter melalui Reaksi Eterifikasi Kardanol Hasil Isolasi Kulit Biji Jambu Mete (Anacardium occidentale L.) dengan Variasi Molar Dimetil Karbonat
(Universitas Sumatera Utara, 2024)Synthesis of cardanyl methyl ether was carried out through an etherification reaction between cardanol isolated from cashew seed shell extract (CNSL) and dimethyl carbonate.Cardanol isolation was carried out by adding ... -
Formulasi Sediaan Hair Tonic Kitosan Oligosakarida dengan Karboksimetil Kitosan sebagai Antijamur terhadap Penyebab Ketombe (Malassezia Globosa)
(Universitas Sumatera Utara, 2024)Research has been conducted on the use of oligosaccharide chitosan and carboxymethyl chitosan in the formulation of hair tonic preparations as antifungal against the cause of dandruff (Malassezia globosa). Hair tonic is ...