Article
Environmental Sciences
Nikita Yushin, Inga Zinicovscaia, Liliana Cepoi, Tatiana Chiriac, Ludmila Rudi, Dmitrii Grozdov
Summary: Living and non-living Arthrospira platensis biomass effectively removes Pr(III) from aqueous solutions. The addition of Pr(III) decreases carbohydrate and lipid content in the biomass, but does not significantly affect biomass productivity or the content of proteins and pigments. The maximum sorption capacity of non-living biomass for Pr(III) is 99.3 mg/g, and the adsorption process follows the Langmuir model, indicating a spontaneous and exothermic reaction.
Article
Food Science & Technology
Cepoi Liliana, Zinicovscaia Inga, Rudi Ludmila, Chiriac Tatiana, Pantelica Ana, Apostol Andrei, Djur Svetlana, Ganea Larisa, Iancu Decebal
Summary: The study on the production of lithium-enriched Arthrospira platensis biomass in bioaccumulation and biosorption processes revealed that Arthrospira platensis biomass is a promising matrix for the production of lithium-containing food supplements.
Article
Biochemistry & Molecular Biology
Isha Shakoor, Aisha Nazir, Sonal Chaudhry, Qurat-ul-Ain, Firdaus-E-Bareen, Sergio C. Capareda
Summary: The study assessed the feasibility of using indigenous Arthrospira platensis for nickel remediation, showing promising results in removing nickel pollutants from cooking oil industry wastewater.
Article
Microbiology
Liliana Cepoi, Inga Zinicovscaia, Ludmila Rudi, Tatiana Chiriac, Svetlana Djur, Nikita Yushin, Dmitrii Grozdov
Summary: This study investigated the bioaccumulation performance of Spirulina in the remediation of nickel-polluted wastewater. The results showed that metal uptake by Spirulina biomass depended on the effluent composition and metal ion concentrations. Under appropriate conditions, Spirulina efficiently accumulated metals such as nickel and could be applied for the treatment of complex composition nickel-polluted wastewater.
Article
Chemistry, Applied
Inga Zinicovscaia, Liliana Cepoi, Ludmila Rudi, Tatiana Chiriac, Dmitrii Grozdov, Sergey Pavlov, Svetlana Djur
Summary: The study evaluated the effects of six rare earth elements on the growth and physiological changes of Arthrospira platensis, showing that Dy and La ions stimulated biomass growth while Yb ions inhibited it. The presence of rare earth elements affected certain components in spirulina biomass to different extents. A. platensis can be utilized for bioremediation of natural water contaminated with REEs and REEs recovery from low polluted industrial effluents.
JOURNAL OF RARE EARTHS
(2021)
Article
Energy & Fuels
R. Dineshkumar, M. Sowndariya, S. Kalaiselvi, G. Israth Rehana, M. Durai Murugan, Marykutty Abraham, Meivelu Moovendhan, M. Kavisri
Summary: This study investigated the biosorption of lead by marine microalgae D. salina using a batch model. The results showed that D. salina has numerous metal binding functional groups, making it an effective and cost-effective biosorbent for the removal of lead from industrial effluents.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Chemistry, Analytical
Guangyu Liu, Yujuan Hua, Ronda Gras, Jim Luong
Summary: An analytical strategy utilizing discrete frequency infrared imaging technique was developed to improve sample throughput in microplastic analysis. The concept demonstration study achieved high identification rates with a reduced scanning area, demonstrating the potential of this technique to enhance sample throughput.
ANALYTICAL CHEMISTRY
(2022)
Article
Spectroscopy
Shahrzad Khayatian, Ali Bavali, Sareh Moradi, Mona Farhadi, Seyed Behnamedin Jameie
Summary: This study assessed the laser induced fluorescence (LIF) features of Spirulina and found that the fluorescence properties were strongly dependent on concentration, excitation wavelength, and detection geometry. The LIF spectral shift was introduced as a reliable parameter for designing precise fluorescence-based sensors.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Chemistry, Multidisciplinary
Chong-Yuan Zhang, Qiang Wu, Ying-Dong Wang, Jin-Tao Fan, Zi-Zong Zhu
Summary: In this study, carbonization experiments were conducted on cokes produced from Jurassic and Carboniferous coking coals. The quality of cokes from Jurassic coals was found to be inferior to that from Carboniferous coals. Analyzing the coal samples, it was discovered that the excessive oxygen-containing functional groups in the Jurassic coals led to the poor quality of the cokes.
Review
Chemistry, Applied
Martyna Krysa, Monika Szymanska-Chargot, Artur Zdunek
Summary: Flavonoids are secondary metabolites commonly found in plants, known for their antioxidant properties, involvement in plant defense mechanisms, and responsibility for the pigmentation of fruits and flower petals. Consumption of foods rich in flavonoids brings various health benefits such as blood pressure regulation, anti-aging effects, and anti-cancer properties. Infrared and Raman spectroscopy are effective methods for quickly and accurately determining the presence of flavonoid compounds in test samples. These methods have been successfully applied in the food and pharmaceutical industries. The spectroscopic spectra of different flavonoid subgroups (flavones, isoflavones, flavanones, flavonols, and anthocyanins) are compared and described in this review.
Article
Microbiology
T. C. Scheier, J. Franz, M. Boumasmoud, F. Andreoni, B. Chakrakodi, B. Duvnjak, A. Egli, W. Zingg, A. Ramette, A. Wolfensberger, R. D. Kouyos, S. D. Brugger
Summary: This study evaluated the application of FT-IR spectroscopy in VREfm outbreak investigations. The results showed that FT-IR spectroscopy had reproducible basic performance, and its readouts showed high agreement with WGS analysis in clinical outbreak investigations. FT-IR spectroscopy had a higher discriminatory power than MLST in outbreak investigations. Therefore, FT-IR spectroscopy is a promising technique that can assist in outbreak investigations with an affordable cost and a turnaround time of less than one day.
MICROBIOLOGY SPECTRUM
(2023)
Article
Microbiology
T. C. Scheier, J. Franz, M. Boumasmoud, F. Andreoni, B. Chakrakodi, B. Duvnjak, A. Egli, W. Zingg, A. Ramette, A. Wolfensberger, R. D. Kouyos, S. D. Brugger
Summary: This study evaluated the use of Fourier-transform infrared (FT-IR) spectroscopy for Vancomycin-resistant Enterococci outbreak investigations. The results showed that FT-IR spectroscopy had reproducibility and a high agreement with WGS-ANI analysis in clinical outbreak investigations, with a higher discriminatory power than MLST. This technique is promising as an affordable, easy-to-use tool with a short turnaround time.
MICROBIOLOGY SPECTRUM
(2023)
Article
Biochemistry & Molecular Biology
Jinghang Xie, Fan Yang, Haimei Shi, Jintao Yan, Hao Shen, Shaoning Yu, Ning Gan, Bin Feng, Li Wang
Summary: This study investigated the influence of water on the bacterial protein amide bands using FT-IR spectroscopy. The results showed that the FT-IR signals of protein amide bands are beneficial for bacterial typing.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Environmental Sciences
Awatief F. Hifney, Ayat Zien-Elabdeen, Mahmoud S. Adam, Mohamed Gomaa
Summary: The study successfully demonstrated the removal of ketoprofen and diclofenac from water using living cells of the green alga Chlorella sp., with adsorption efficiency being influenced by various parameters. The maximum adsorption capacities for KET and DIF were found to be 0.328 and 0.429 mg g(-1), respectively. The results suggest that microalgae living cells can serve as an eco-friendly and cost-effective biosorbent for the removal of pharmaceuticals at low concentrations.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Biochemistry & Molecular Biology
Abdulrahman Aljannahi, Roudha Abdulla Alblooshi, Rashed Humaid Alremeithi, Ioannis Karamitsos, Noora Abdulkarim Ahli, Asma Mohammed Askar, Ikhlass Mohammed Albastaki, Mohamed Mahmood Ahli, Sanjay Modak
Summary: Synthetic fibers can provide valuable evidence in crime scenes and help establish connections between suspects, victims, and crime scenes. This study used Fourier transform infrared spectroscopy and multivariate statistical methods combined with machine learning classification models to classify synthetic textile fibers successfully.
Article
Chemistry, Physical
Liliana Cepoi, Inga Zinicovscaia, Tatiana Chiriac, Ludmila Rudi, Nikita Yushin, Dmitrii Grozdov, Ion Tasca, Elena Kravchenko, Kirill Tarasov
Summary: Selenium nanoparticles have various applications, including medicine, which has led to increased research interest. The biosynthesis of selenium nanoparticles is important due to its eco-friendly process and unique particle properties. This study investigated the biosynthesis of selenium nanoparticles using Arthrospira platensis cultures and sodium selenite, determining bioaccumulation capacity, changes in biochemical parameters, ultrastructural changes in cells, and gene expression involved in stress responses. Protein fractions from the biomass were shown to contain selenium nanoparticles, indicating that Arthrospira platensis cultures are a suitable matrix for biosynthesis.
Article
Environmental Sciences
Radu Lucian Olteanu, Cristiana Radulescu, Petre Bretcan, Inga Zinicovscaia, Otilia Culicov, Konstantin Vergel, Danut Tanislav, Marius Bumbac, Cristina Mihaela Nicolescu, Ioana Daniela Dulama, Laura Monica Gorghiu
Summary: Chemical analysis was conducted on sediment core samples collected from three salt lakes in Romania. The analysis revealed variations in the concentration of different elements, heavy metals, rare earth elements, and trace elements depending on depth sections and lake genesis. The assessment of pollution indices indicated low to moderate contamination levels, with contributions from pedological factors, salts deposition, atmospheric deposition, leaching from soil surface/denudation, rock weathering, and anthropogenic sources such as agricultural runoff and wastewater discharges.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2023)
Article
Geochemistry & Geophysics
Inga Zinicovscaia, Nikita Yushin, Dmitrii Grozdov, Alexey Safonov
Summary: The adsorption properties of Shewanella xiamenensis immobilized on zeolite were studied for the remediation of silver-containing effluents. The effects of pH, contact time, silver concentration, and temperature on the adsorption efficiency were investigated. The optimal pH for metal ions removal was found to be between 4.0 and 6.0, and the equilibrium time ranged from 60 to 150 minutes. Kinetic models were used to describe the adsorption process, and the Langmuir model calculated the maximum adsorption capacities of silver on bio-zeolite.
Article
Water Resources
Nadezhda Popova, Grigoriy Artemiev, Inga Zinicovscaia, Nikita Yushin, Ludmila Demina, Kirill Boldyrev, Denis Sobolev, Alexey Safonov
Summary: Groundwater samples contaminated with potentially toxic elements (PTE) were collected from the Siberian Chemical Plant waste storage. A study investigated the possibility of using zeolite and lightweight expanded clay aggregate (LECA) to develop a permeable biogeochemical barrier. The fixation of metals on the chosen materials was determined, with sulfide or phosphate forms effectively immobilized on LECA and non-chalcogen group metals primarily retained as phosphates. The formation of iron sulfide biogenic deposits during the immobilization process is an important aspect of LECA loading, supporting the feasibility of a two-component barrier using LECA and zeolite.
Article
Biochemistry & Molecular Biology
Alexandra L. Ivlieva, Elena N. Petritskaya, Dmitriy A. Rogatkin, Inga Zinicovscaia, Nikita Yushin, Dmitrii Grozdov
Summary: The study examined the effects of prolonged oral administration of gold nanoparticles on spatial memory and anxiety levels in offspring of mice during pregnancy and lactation. The average amount of gold that crossed the blood-brain barrier was measured, with females having a content of 3.8 ng/g and offspring having 1.1 ng/g. The experimental offspring showed no differences in spatial orientation and memory compared to the control, but their anxiety levels increased. Gold nanoparticles influenced the emotional state of mice exposed to them during prenatal and early postnatal development, but not their cognitive abilities.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Environmental Sciences
Nikita Yushin, Inga Zinicovscaia, Liliana Cepoi, Tatiana Chiriac, Ludmila Rudi, Dmitrii Grozdov
Summary: Living and non-living Arthrospira platensis biomass effectively removes Pr(III) from aqueous solutions. The addition of Pr(III) decreases carbohydrate and lipid content in the biomass, but does not significantly affect biomass productivity or the content of proteins and pigments. The maximum sorption capacity of non-living biomass for Pr(III) is 99.3 mg/g, and the adsorption process follows the Langmuir model, indicating a spontaneous and exothermic reaction.
Article
Biotechnology & Applied Microbiology
Inga Zinicovscaia, Nikita Yushin, Dmitrii Grozdov, Elena Rodlovskaya, Le Hong Khiem
Summary: Yeast Saccharomyces cerevisiae is an effective and environmentally friendly biosorbent for treating complex effluents. The study examined the factors affecting metal removal, such as pH, contact time, temperature, and silver concentration. The biosorbent's characteristics before and after biosorption were analyzed using various techniques. The results showed high removal efficiencies for silver, copper, zinc, and nickel ions, with the Langmuir and pseudo-second-order models providing the best fit for the experimental data.
BIOENGINEERING-BASEL
(2023)
Article
Green & Sustainable Science & Technology
Nikita Yushin, Inga Zinicovscaia, Liliana Cepoi, Tatiana Chiriac, Ludmila Rudi, Dmitrii Grozdov
Summary: The biosorption and bioaccumulation of gadolinium by Arthospira platensis were studied. In biosorption experiments, the impact of pH, gadolinium concentration, contact time, and temperature on Arthospira platensis' sorption capacity was investigated. The maximum biosorption capacity of 101 mg/g was achieved at pH 3.0 and a temperature of 20°C. The kinetics of biosorption followed a pseudo-first-order model, and the equilibrium was described by the Freundlich model. In bioaccumulation experiments, the effect of gadolinium on biomass productivity and the content of proteins, lipids, carbohydrates, and pigments was assessed.
CLEAN TECHNOLOGIES
(2023)
Article
Geochemistry & Geophysics
A. I. Safonov, A. S. Alemasova, I. I. Zinicovscaia, K. N. Vergel, N. S. Yushin, A. V. Kravtsova, O. Chaligava
Summary: The territory of modern central Donbass was used as an experimental site to implement an ingredient biomonitoring program, which involved transplanting and exposing bryophytes in locations influenced by various industrial activities. The research focused on bryobionts with varying resistance to technogenic pollution and identified criteria for assessing their response to anthropogenic factors. The study also analyzed the accumulation of elements in indicator plants and observed deformities and anomalies in their structure and development. These findings are important in quickly assessing the level of technogenic stress and evaluating the geochemical contrast of the environment.
GEOCHEMISTRY INTERNATIONAL
(2023)
Article
Chemistry, Multidisciplinary
Amal H. Al-Bagawi, Nikita Yushin, Nasser Mohammed Hosny, Islam Gomaa, Sabah Ali, Warren Christopher Boyd, Haitham Kalil, Inga Zinicovscaia
Summary: In this study, In2O3 nanoparticles and Arthrospira platensis were used as adsorbents for terbium removal from aqueous solutions. The adsorption efficiency of both adsorbents was found to be dependent on the time and pH, with Arthrospira platensis showing the highest removal at pH 3.0 and In2O3 at pH 4.0-7.0. The maximum adsorption capacity calculated from the Langmuir model was 212 mg/g for Arthrospira platensis and 94.7 mg/g for In2O3 nanoadsorbent. These adsorbents have potential for terbium recovery from wastewater.
Article
Microbiology
Inga Zinicovscaia, Nikita Yushin, Dmitrii Grozdov, Alexandra Peshkova, Konstantin Vergel, Elena Rodlovskaya
Summary: A comparative study was conducted on the biosorption capacity of cyanobacteria Spirulina platensis and yeast Saccharomyces cerevisiae towards dysprosium ions. The experiment evaluated the effects of pH, concentration, time, and temperature on biosorption capacity. Results showed that both biosorbents exhibited efficient and pH-dependent dysprosium removal. Adsorption data fitted well with the Langmuir model and the kinetics followed the pseudo-second-order and Elovich models. The maximum biosorption capacities were 3.24 mg/g and 5.84 mg/g for Spirulina platensis and Saccharomyces cerevisiae, respectively. Thermodynamic analysis revealed the spontaneous nature of dysprosium biosorption, with exothermic behavior for Saccharomyces cerevisiae and endothermic behavior for Spirulina platensis. Thus, biological sorbents can serve as an eco-friendly alternative for dysprosium recovery from wastewater.
Article
Chemistry, Analytical
Inga Zinicovscaia, Nikita Yushin, Doina Humelnicu, Maria Ignat, Ionel Humelnicu, Dmitrii Grozdov, Tatyana Vershinina
Summary: Hydroxyapatite (HAP) and its modifications HAP P123 and HAP F127 were used to remove indium ions from aqueous solutions. The adsorbents' abilities were influenced by pH, contact time, indium concentration, temperature, and co-existing ions. Freundlich isotherm provided a better description of the equilibrium for all adsorbents. Different kinetics models were used for different adsorbents. Thermodynamic parameters showed a feasible, spontaneous, and exothermic process for indium adsorption. The adsorbents showed high desorption efficiency and can be used for wastewater treatment.
Article
Environmental Sciences
Malgorzata Rajfur, Inga Zinicovscaia, Nikita Yushin, Maria Wac Lawek
Summary: The moss-bag technique has been used for monitoring indoor air pollution. The study found that the concentrations of selected elements were affected by the seasons and their sources. In winter, the concentrations of Co, Ba, Cr, and Sr in the mosses were higher. The higher phosphorus concentrations obtained in summer indicate physiological stress caused by unfavorable winter exposure conditions.
ENVIRONMENTAL RESEARCH
(2023)
