A5059743516- Essential Oils and Antimicrobial Activity
- Microbial Community Ecology and Physiology
- Methane Hydrates and Related Phenomena
- Bone Tissue Engineering Materials
- Graphene and Nanomaterials Applications
- Nanoparticles: synthesis and applications
- Celiac Disease Research and Management
- Antibiotic Resistance in Bacteria
- Pharmaceutical and Antibiotic Environmental Impacts
- Marine and environmental studies
- Microplastics and Plastic Pollution
- biodegradable polymer synthesis and properties
- Enzyme Catalysis and Immobilization
- Eosinophilic Esophagitis
- Photodynamic Therapy Research Studies
- Natural product bioactivities and synthesis
- Environmental Science and Water Management
- Building materials and conservation
- Protein Hydrolysis and Bioactive Peptides
- Garlic and Onion Studies
- Helicobacter pylori-related gastroenterology studies
- Polymer Synthesis and Characterization
- Botany and Plant Ecology Studies
- Phytochemical compounds biological activities
- Plant and Biological Electrophysiology Studies
Babeș-Bolyai University
2016-2025
Institute of Molecular Biology and Biotechnology
2022
Iuliu Hațieganu University of Medicine and Pharmacy
2020
Winery industry by-products have a great reuse potential in the pharmaceutical and cosmetic fields due to their bioactive compounds. This study investigates phytochemical profile bioactivity of Vitis vinifera variety Fetească neagră tendrils extract (TE) leaves (LE), intended be used oral hygiene products recommended periodontal disease. The evaluation phenolic content was performed by colorimetric analysis. Liquid chromatography coupled with mass spectrometry determine chemical two extracts...
Composites based on polylactic acid (PLA) and copper for food packaging applications were obtained. Copper clusters synthesized in polyethylene glycols 400 600, respectively, using ascorbic as a reducing agent, by reactive milling. characterized Scanning Electron Microscopy (SEM), Fourier Transform Infrared (FT-IR), Ultraviolet-Visible (UV-VIS) spectroscopy. Copper/PLA composites containing Proviplast plasticizer FT-IR spectroscopy, mechanical tests, Differential Calorimetry (DSC),...
Various powders of graphene oxide (GO), GO with silver (GO-Ag) and zinc (GO-ZnO) were obtained. The silanized (3-aminopropyl) triethoxysilane (APTES) aiming to be used, in a future stage, as additives the hydraulic lime mortars composition. characterized by Fourier Transform Infrared Spectrometry (FTIR) Scanning Electron Microscopy (SEM) before after silanization process. GO, GO-Ag, GO-Ag-APTES, GO-ZnO GO-ZnO-APTES also investigated Thermogravimetric Analysis (TG/DTA) Ultraviolet–Visible...
Microbial infections affect both the human population and animals. The appearance of more microbial strains resistant to classical treatments led need develop new treatments. Allium plants are known for their antimicrobial properties due high content thiosulfinates, especially allicin, polyphenols or flavonoids. hydroalcoholic extracts six species obtained by cold percolation were analyzed regarding phytochemical compounds activity. Among extracts, sativum L. ursinum have similar contents...
The occurrence and spread of bacterial antibiotic resistance are subjects great interest, the role wastewater treatment plants has been attracting particular interest. These stations a reservoir bacteria, have large range organic inorganic substances, amount bacteria released into environment is very high. main purpose present study was to assess removal degree with antibiotics identify contribution plant microbiota Someşul Mic river water in Cluj county. sulfamethoxazole tetracycline some...
(1) Background: Poor hygiene and denture presence in the oral cavity are factors that favor bacterial accumulation, cause of halitosis various general diseases. Aim: This study aimed to evaluate possibility inactivating bacteria associated with acrylic wearers using polymethyl methacrylate resin enhanced graphene silver nanoparticles effect association extra photodynamic therapy. (2) Methods: Graphene 1 2 wt% were added a commercial powder. Three groups containing samples from three...
This study aimed to optimize the extraction of phytocompounds intended for wound care applications from three plant species, Sambucus nigra L. flowers and Epilobium hirsutum Lythrum salicaria aerial parts, by using a Quality Design approach. The effects different methods (ultra-turrax ultrasonic-assisted extraction), ethanol concentrations (30%, 50%, 70%), times (3, 5, 10 min) were studied, during optimization step, polyphenol flavonoid contents maximized. phytochemical profiles optimized...
The novelty of this study consists on the formulation and evaluation five complex experimental natural photosensitizers (PS): gel with oregano essential oil (O), methylene blue (AM), a mixture oils (Thieves-H), arnica curcuma extract (CU) frankincense (T), used as photosensitizing agents (PS) in antimicrobial photodynamic therapy (aPDT) control microbial biofilm oral cavity. PS were characterized by gas chromatography-mass spectrometry (GC-MS), Fourier-transform infrared spectroscopy (FTIR),...
Abstract A mud volcano (MV) is a naturally hydrocarbon-spiked environment, as indicated by the presence of various quantities PAHs and aromatic isotopic shifts in its sediments. Recurrent expulsion hydrocarbons consolidates growth hydrocarbonoclastic bacterial communities areas around MVs. In addition to widely-known availability biologically malleable alkanes, MVs can represent hotbeds polyaromatic (PAHs), well - an aspect that has not been previously explored. This study measured highly...
The phytochemical analysis of Vinca minor, V. herbacea, major, and major var. variegata leaf extracts showed species-dependent antioxidant, antibacterial, cytotoxic effects correlated with the identified phytoconstituents. Vincamine was present in variegata, while minor had richest alkaloid content, followed by herbacea. flavonoids highest total phenolic content found herbacea which also elevated levels rutin. Consequently, antioxidant activity variegata. Whereas, lowest one major. extract...
In this study, the biological activities of four extracts from Vitis vinifera by-products: two pomace extracts, white (WPE) and red (RPE), a canes extract (CE), their combination (CoE), were evaluated, to be included in freeze-drying mouthwashes formulations. The cytocompatibility anticancerous potential tested on three cancerous cell lines, as well cytoprotective activity against nicotine-induced cytotoxicity antioxidant determined human gingival fibroblasts (HGF) line. Additionally,...
The study evaluated the impact of graphene powders used as additives in recipe experimental lime mortar to a mixture ratio 1:2.5 NHL3.5 hydraulic lime:fine sand. content binder, aggregate and water was kept constant, varying only amount type added relation natural NHL3.5. following five types mortars were prepared follows: reference (without additive); containing 1 wt.% GO 5 powder; with mixture: powder functionalized silver nanoparticles fly ash (GO-Ag + GO-fly ash); zinc oxide titanium...
In this study, a comparative determination of the quality factors, chemical composition and antimicrobial activity for ozonated non-ozonated olive, coconut hemp oils was made.The following factors nonozonated were determined: peroxide value, acidity iodine value density.The methyl esters fatty acids final compounds resulting from ozonation process studied vegetable characterized by Gas-Chromatography-Mass Spectrometry (GC-MS).The oil samples showed varying degrees antibacterial against...
Dental caries is an avoidable and complex condition impacting billions of individuals worldwide, posing a specific concern among younger generations, despite the progress oral hygiene products. This deterioration occurs due to acid demineralization tooth enamel, leading loss minerals from enamel subsurface. The remineralisation early carious lesions could prevent cavitation teeth. protein amelogenin constitutes 90% total matrix plays key role in bio mineralisation process. aim this study...
This study presents the extraction of essential oils and volatiles Eryngium planum (E.planum) by classical hydrodistillation (HD), ultrasoundassisted (UAHD) headspace solid-phase microextraction (HS-SPME).The GC-MS analysis showed that oil E. obtained UAHD contains following majority compounds: β-copaene (11.97%), cis-chrysanthenyl acetate (10.14%), (E)-β-farnesene (6.79%), γgurjunene (6.53%), caryophyllene (5.73%), germacrene B (3.93%), (+)-cisverbenol,2-methylpropionate (2.87%), β-selinene...