نتایج جستجو برای: bioelements

تعداد نتایج: 64  

2015
Jaleh Barar

During the last two decades, applications of nanotechnology are delivered to benefit the human society. The fact is that various nanomaterials are able to be tailor made to achieve desired properties. In biomedical field, nanotechnology has created great excitements to advance both diagnosis and therapy areas - the field so-called nanomedicines in different forms of nanoparticles (NPs) and nano...

2013
Małgorzata Grembecka Piotr Szefer

The aim of this investigation was to estimate and compare essential and heavy metals contents in 98 commercially available fresh fruits from different geographic regions using multivariate techniques. The concentrations of 12 elements (calcium, magnesium, potassium, sodium, phophorus, cobalt (Co), manganese, iron, chromium (Cr), nickel (Ni), zinc and copper) were determined using flame atomic a...

2012
Zorica Bulat Danijela Đukić-Ćosić Biljana Antonijević Petar Bulat Dragana Vujanović Aleksandra Buha Vesna Matović

The present study is designed to investigate whether magnesium (Mg) supplementation may prevent Cd-induced alterations in zinc (Zn), copper (Cu), and magnesium (Mg) status in rabbits. For this purpose, the concentrations of Zn, Cu, and Mg were estimated in blood, urine, and organs (brain, heart, lungs, liver, kidney, spleen, pancreas, skeletal muscle, and bone) of rabbits given Cd (10 mg/kg b.w...

Journal: :Biogeosciences 2023

Abstract. Water-soluble organic nitrogen (WSON) in marine atmospheric aerosols affect the water solubility, acidity, and light-absorbing properties of aerosol particles, which are important parameters assessing both climate impact biogeochemical cycling bioelements. Size-segregated surface seawater (SSW) samples were simultaneously collected over subtropical North Pacific to investigate origin ...

2010
S. Shleev G. Shumakovich O. Morozova A. Yaropolov

Successful realisation of many important electrochemical processes, including development of fuel cell (FC) technology, requires generation of novel highly effective catalysts, which are active at ambient temperatures and physiological pH values. Optimal technological solutions can be achieved by using biocatalysts heterogeneously arranged in an electroconductive matrix, e.g. redox enzymes immo...

2016
Justyna Brzezicha-Cirocka Małgorzata Grembecka Piotr Szefer

The present study measured the concentrations of toxic metals (Cd, Pb) and other elements (Ca, K, Mg, Na, P, Mn, Fe, Zn, Cu, Co, Cr, Ni) in tea leaves and their infusions. The total metal contents were determined by atomic absorption spectrometry. Phosphorus concentration was determined using an ultraviolet-visible spectrophotometer. Assessment of the mineral composition enabled determination o...

2017
Chang-Seuk Lee Su Hwan Yu Tae Hyun Kim

Here, we introduce the preparation of the hybrid nanocomposite-modified electrode consisting of reduced graphene oxide (RGO) and gold nanoparticles (AuNPs) using the one-step electrochemical method, allowing for the simultaneous and individual detection of dopamine (DA), ascorbic acid (AA), and uric acid (UA). RGO/AuNPs nanocomposite was formed on a glassy carbon electrode by the co-reduction o...

Journal: :Magnesium research 2008
Tatjana Todorovic Dragana Vujanovic Ivan Dozic Aleksandra Petkovic-Curcin

Lead manifests toxic effects in almost all organs and tissues, especially in: the nervous system, hematopoietic system, kidney and liver. This metal has a special affinity for deposition in hard tissue, i.e., bones and teeth. It is generally believed that the main mechanism of its toxicity relies on its interaction with bioelements, especially with Ca and Mg. This article analyses the influence...

2016
Firew Elias Delelegn Woyessa Diriba Muleta

Phosphorus (P) is one of the major bioelements limiting agricultural production. Phosphate solubilizing fungi play a noteworthy role in increasing the bioavailability of soil phosphates for plants. The present study was aimed at isolating and characterizing phosphate solubilizing fungi from different rhizospheres using both solid and liquid Pikovskaya (PVK) medium. A total of 359 fungal isolate...

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