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NEW COBALT (II) MIXED LIGAND COMPLEXES OF, 1, 10-PHENANTHROLINE, ADENINE AND OXALATE: SYNTHESIS, CHARACTERIZATION AND ANTIBACTERIAL ACTIVITY INVESTIGATIONS

Bosena, Denber (2020-12-02)

ABSTRACT Cobalt can bind to a range of biomolecules forming complexes that are suitable for use in various biological applications. Different ligands could be used to tune the properties of cobalt compounds and designing ...

NEW MIXED LIGAND COMPLEXES OF IRON (III), 1, 10-PHENANTHROLINE, ACETONE AND ACETAMIDE: SYNTHESIS AND BIOLOGICAL EVALUATION

GUYOLA KATALE (2020-11-27)

Transition-metal complexes possess a variety of advantages that make them suitable as therapeutics and probes for biomolecules. It is thus highly desirable to develop new metal complexes that either interact with DNA ...

“Synthesis, Structural Investigation and Assessment of Microbial Activity of Mononuclear and Homobinuclear complex of Iron (III) and 1, 10-phenanthroline using ethylenediamine as link’’

Aychal Arega (2020-11-27)

The improper use of antibiotics has led to an increase in drug-resistant bacteria against known antibiotics. To overcome the alarming problem of microbial resistance to antibiotics, the discovery of novel active metal ...

Mono and binuclear complexes of cobalt (II) with 1, 10-phenanthroline using ethylenediamine as a spacer: Synthesis, characterizations and antibacterial activity investigations

Aragaw Genet (2020-11-27)

The study of the coordination chemistry of biologically important metal ions with mixed heterocyclic ligands have gained importance. The increase in the mortality rate caused by drug resistant bacteria has been the concern ...

PREPARATION AND CHARACTERIZATION OF PARTIALLY DEACETYLATED CHITIN NANOFIBERS FROM MUSHROOM AND EVALUATING THEIR ANTIMICROBIAL EFFECT

ANDUALEM, MOLLA (2020-11-12)

Chitin, a linear polymer of β-(1, 4) linked 2-acetamido-2-deoxy-D-glucopyranose, is the second most abundant biopolymer on earth next to cellulose and it is mostly obtained from the exoskeletons of arthropods such as ...

PREPARATION AND CHARACTERIZATIONS OF CELLULOSE NANOFIBERS FROM WATER HYACINTH AND THEIR APPLICATION AS REINFORCEMENT FOR RECYCLED PAPER

EWNETU, MERIKO (2020-11-12)

In this study, cellulose nanofiber was prepared from WH and used as reinforcement in recycled paper. There are various sources to prepare Cellulose nanofiber however, water hyacinths being used as a source to synthesize ...

POLY (MALACHITE GREEN) MODIFIED GLASSY CARBON ELECTRODE FOR SQUARE WAVE ADSORPTIVE ANODIC STRIPPING VOLTAMMETRIC DETERMINATION OF TETRACYCLINE IN PHARMACEUTICAL TABLET FORMULATION

TURBALE, MAHILET (2020-11-12)

A selective and sensitive electrochemical sensor based on glassy carbon electrode modified with poly (malachite green) was developed for determination of tetracycline in pharmaceutical tablet formulation. Potentiodaynamically ...

PHYSICOCHEMICAL ANALYSIS AND DETERMINATION OF SELECTED METALS IN DIFFERENT BRAND OF BOTTLED MANGO JUICE IN BAHIDAR CITY, ETHIOPIA

TSEHAY, EBESTIE (2020-11-12)

Mango juice has health and nutritional benefits-issue of uniformity. However, it may also contain high level of metals or additives, causing a health problem and affect the quality of the juice. Therefore, the main purpose ...

PREPARATION AND CHARACTERIZATIONS OF MANGO SEED SHELL CELLULOSE NANOCRYSTALS REINFORCED ALOE VERA LEAF EXTRACT GEL AND EVALUTING ITS ANTIMICROBIAL EFFECTS.

JUFAR, DEBELA (2020-11-06)

Due to their abundance, renewability biocompatibility, biodegradability and eco-friendly aloe vera gel biopolymer reinforced with high strength and stiffness, low weight and biodegradability, cellulose nanocrystal ...

STUDIES ON ANTI-OXIDATIVE AND ANTIBACTERIAL ACTIVITIES OF THE LEAVES EXTRACT OF CLEMATIS HIRSUTA (Nech yeazo hareg)

MOLLA, AZEMERAW (2020-11-06)

Clematis hirsuta plant is one of the commonly used traditional medicinal plants in Ethiopia for treating wounds, headache, and cough. The current study intended to investigate the antibacterial and anti-oxidative activities ...

ETHYLENE DIAMINE TETRA ACETIC ACID DISODIUM SALT MODIFIED CARBON PASTE ELECTRODE FOR SQUARE WAVE VOLTAMMETRIC DETERMINATION OF THEOPHYLLINE IN PHARMACEUTICAL TABLET FORMULATION

MOGES, AMSALU (2020-11-06)

Theophylline is one of the important natural alkaloids effective in the treatment of respiratory disease. While the level of theophylline in adult plasma below 5-20 µg/mL is none therapeutic, its amount above the level ...

POLY(ALIZARIN RED S) MODIFIED GLASSY CARBON ELECTRODE FOR SQAURE WAVE ADSORPTIVE CATHODIC STRIPPING VOLTAMMETRIC DETERMINATION OF METRONIDAZOLE IN PHARMACEUTICAL TABLET FORMULATION

MULUGETA DAWIT (2020-11-06)

ABSTRACT Potentiodynamically fabricated poly(alizarin red s) modified glassy carbon electrode was characterized using cyclic voltammetry and electrochemical impedance spectroscopy. Cyclic voltammetric response of the ...

PREPARATION AND CHARACTERIZATIONS OF MANGO SEED SHELL CELLULOSE NANOCRYSTALS REINFORCED ALOE VERA LEAF EXTRACT GEL AND EVALUTING ITS ANTIMICROBIAL EFFECTS.

DEBELA, JUFAR (2020-10-12)

ABSTRACT Due to their abundance, renewability biocompatibility, biodegradability and eco-friendly aloe vera gel biopolymer reinforced with high strength and stiffness, low weight and biodegradability, cellulose ...

STUDIES ON ANTI-OXIDATIVE AND ANTIBACTERIAL ACTIVITIES OF THE LEAVES EXTRACT OF CLEMATIS HIRSUTA (Nech yeazo hareg)

AZEMERAW, MOLLA (2020-10-12)

ABSTRACT Clematis hirsuta plant is one of the commonly used traditional medicinal plants in Ethiopia for treating wounds, headache, and cough. The current study intended to investigate the antibacterial and anti-oxidative ...

COMPARATIVE STUDIES ON THE ANTIOXIDANT AND ANTIMICROBIAL ACTIVITIES OF EXTRACTION OF ESSENTIAL OILS FROM CYMBOPOGEN CITRATUS (Tejsar) AND THYMUS SCHIMPERI (Tosign)

DESALEW, MULAT (2019-12-20)

Cymbopogen citratus and Thymus schimperi are the most common weed plants in Ethiopia and used in traditional medicines. This study was conducted to evaluate the antioxidant capacities by using 2,2- diphenyl-1-picrylhydrazyl ...

Detection of Some Selected Heavy Metals (Mn Ni Zn As and Cu) ) in solid waste Disposal Site at Bahir Dar City Using ICP-OES

Agegnehu, Yeshiwas (2019-12-20)

This study aimed to investigate heavy metal concentrations in soil samples collected from Bahir Dar City Sebatamet solid waste disposal site and to compare the observed values with the regulatory limits. This study also ...

Fertilizer Usage and Lead and Cadmium Contamination in Agricultural Soils and Fertilizer Used In Sire Woreda, Arsi Zone, Ethiopia

WORDOFA, SHURA (2019-12-04)

The presence of heavy metal Cadmium and Lead in relatively low concentrations in fertilizers as impurities can be toxic to soil, plants and food produced and to the environment; and consequently to the animal-human ...

Determination of Ba, Si, Na, Cu, Ni and Co in Coffee Samples Collected from Eastern Amhara Region, Ethiopia

Sisay, Tadesse (2019-12-04)

This study was carried out to evaluate the concentration of selected elements in raw coffee samples collected from six wored as of eastern Amhara region. The concentration of six elements (Ba, Si, Na, Co, Ni and Co) were ...

Determination of Some Selected Essential and Non-essential Metals in Fresh Cow Milk from Wombera Woreda, Benishangul Gumuz, Ethiopia

Million, Demeki (2019-12-04)

Fresh cow milk samples were collected from three different farms of Deberezeit, Manasibu and Ateshimo site of Wombera woreda, Ethiopia and were placed below 4 ºC in a refrigerator. The cow milk samples were digested by hot ...

DETERMINATION OF SELECTED METALS AND TANNINS IN CASTLE WINE, ETHIOPIA

MEHARIW, BEKALU (2019-12-04)

Alcoholic beverage quality is significantly affected by inorganic ion and organic compounds content. Wine is an alcoholic beverage that contains products of the fermentation of the juice from the grapes. This study evaluates ...

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