Different biological methods are gaining recognition for the production of silver nanoparticles (Ag-NPs) due to their multiple applications. The use of plants in the synthesis of nanoparticles emerges as a cost effective and eco-friendly approach. In the present study, the synthesis of silver nanoparticles by using Ziziphora tenuior L of water extraction was carried out. For this purpose the wa...

barrier properties are one of the most important factors in the edible film. in this study, edible mungbean films were prepared containing (0%, 15%, 30%, 45%) concentrations of rosemary aqueous extract. then the effect of rosemary was investigated on colorimetric and barrier properties (water vapor permeability, oxygen permeability). rosemary extract increased the absorption of color in the vis...

Many anguillid eel species display facultative catadromy. Some spend their entire life cycle in marine coastal areas, but the geographical extent of this, especially at extremes distributional ranges, is unknown. We analysed otolith Sr:Ca and Ba:Ca from yellow-stage European ( Anguilla anguilla) sampled along coast Norway several freshwater lakes (58°N–63°N), to infer initial settlement later m...

Background/introduction MR-guided high-intensity focused ultrasound (HIFU) for treatment of uterine fibroids and painful bone metastases uses the proton resonant frequency shift (PRF) for temperature monitoring in water-based tissues. However, PRF fails to detect temperature changes in tissues with high lipid content, such as fat and bone marrow. Previous studies have shown a change in T2 of su...

The surface wettabiJity and fats of yellow bird1wood were examined in an attempt to illustrate how heat-induced d1anges in wood fats might be related to d1anges in surface wettability. A marked reduction of surface wettability accompan;ed heating of yellow birchwood. The degree of water repellency imparted to the waod was highly dependent upon heating temperature and time. Acetone extraction of...

1. Experimental details All reagents were purchased from Aldrich, the commercial ThT(Cl) was recrystallized in acetonitrile. The slow addition of an aqueous saturated solution of KI (5 ml) to an aqueous solution (20 ml) of (ThT)Cl (0.600 g, 1.88 mmol) resulted in the formation of a yellow solid that was filtered off, washed with cold water (10 ml) and dried in vacuo. MS(+ESI-MS) showed the pres...

SYNOPSIS The statement made in some standard textbooksthatBenedict'squalitativetestgivesa green, yellow, or orange-red precipitate with pure solutions of glucose of varying strength has been shown to be incorrect. Pure solutions ofglucose give only a bright red precipitate at all concentrations. These changes in the colour of the suspensions are observed with urinary glucose only. The differenc...

The Eichhornia crassipes macrophyte, also known as water hyacinth, is considered an invasive species due to its adaptability to a wide variety of ecosystems, affecting the natural balance of lagoons, lakes and so on Vankar & Vásquez [1,2]. An example of this is their strong presence in contaminated wetlands such as the yellow Juan of the city of Bogotá, where they removed almost 30 tons in 2016...

Tea is the most widely consumed beverage after water. Teas are generally divided into categories based on processing techniques. The most commonly applied processes are oxidation and fermentation. There are many different tea varieties (Figure 1) including white, yellow, green, oolong, black and post-fermented. Some teas can be modifi ed further by the addition of additives or by blending diffe...