Lemon essential oil is widely used in both commercial and domestic products. It consists of a mixture of volatile liposoluble compounds responsible for its characteristic fragrance and bioactive properties such as antimicrobial, anti-inflammatory and antioxidant activity. The importance of lemon essential oil is even more significant when consideri...

By Vesna Antunović, Željka Marjanović Balaban, Aleksandra Šmitran, Žarko Gagić, Nebojša Kladar, Vesna Gojković Cvjetković

The characteristics of nickel coatings obtained by electrochemical deposition on steel samples of known chemical composition were investigated. The chemical composition of the steel was examined using the XRF method (X-ray fluorescence spectrometry) before and after the deposition of the coatings. The effect of current density and deposition time o...

By Stanko Spasojević, Snježana Vučićević, Stana Stanišić, Danijela Jovičić, Zorica Ristić, Marija Mitrović, Dubravka Banjac, Milorad Tomić

Due to intensive food production, the generation of agricultural waste leads to a significant environmental impact. Nuts, such as hazelnuts, walnuts, and pistachios, are produced in millions of tons annually, given their proven health benefits in human nutrition. However, their consumption implies separation of edible part from the shell, which rem...

By Naji Agilee, Tijana Spasojević, Milica Delić, Đorđe Ogrizović, Isabela R. Gria, Nevena Prlainović, Maja Đolić

In recent years, the focus has been on the use of natural medicinal products in the treatment of all types of diseases. Essential oils obtained from medicinal plants have been known since ancient times as products with healing properties. Sage (Salvia officinalis), a plant from the family Luminacea, is one of the most valued medicinal plants primar...

By Vesna Antunović, Željka Marjanović-Balaban, Aleksandra Šmitran, Nebojša Kladar

This study investigates the valorization of burnt IQOS cigarette waste into biochar and its subsequent activation to enhance structural porosity and surface area for environmental applications. Initiated by pyrolyzing the residual waste at high temperatures, the process yields a carbon-rich biochar, which is then subjected to a chemical activation ...

By Hadi Waisi, Stevan Blagojević, Miloš Marinković, Marko Milojković, Vladislav Živanić, Martina Waisi

The extraction of gallic acid from the pomegranate peel was carried out in a column with a diameter of 40 mm, in which pomegranate peel grains with a diameter of 2 mm were placed in a packed bed. The extraction fluid is recirculated through the system using a centrifugal pump. The fluids used in the extraction are: water, ethanol:water=50:50 and et...

By Darko Jaćimovski, Katarina Šućurović, Dunja Šijaković, Jelena Živković, Katarina Šavikin

The objective of this work was to investigate a naturally occurring mineral form of calcium apatite, known as hydroxyapatite (Hap), as a potential drug delivery material. Drug delivery materials are utilized to effectively administer drugs to the body, ensuring controlled release, targeted delivery, and enhanced bioavailability. Hydroxyapatite was ...

By Ivan Bracanović, Aleksandar Krstić, Miloš Simić, Miljana Mirković, Ana Kalijadis

Due to increasingly intense problems in terms of resistance to various types of infections, including bacterial resistance to antibiotics, new materials with effective contact antimicrobial action are intensely being researched. Hydroxyapatite (HAp) represents the leading material from the calcium-phosphate group, which can be used as a biocompatib...

By Ivan Bracanović, Dunja Miletić, Ana Kalijadis, Miloš Simić, Aleksandar Krstić, Aleksandra Sknepnek, Miljana Mirković

Digital Image Correlation (DIC) method, including both 2D and 3D DIC, plays an important role in testing and evaluating pressure equipment integrity, as well as materials used in pressure equipment. The 2D DIC method, employing a single-camera setup, is particularly suited for assessing surface deformation and strain distribution in simpler geometr...

By Nenad Mitrovic, Milan Travica, Aleksandra Mitrovic

This work investigates the process of forming metallic coatings of nickel on copper using electrolytic deposition. By focusing on the optimization of deposition parameters, such as current density, electrolyte temperature and deposition time, high-quality coatings can be achieved in terms of corrosion resistance, strength, adhesion and aesthetic ap...

By Stanko Spasojević, Milena Milovanović, Danijela Jovičić, Stana Stanišić, Zorica Ristić, Marija Mitrović, Bojana Lukić, Milorad Tomić