- Thermochemical Biomass Conversion Processes
- Polymer Science and PVC
- Recycling and Waste Management Techniques
- Thermal and Kinetic Analysis
- Microplastics and Plastic Pollution
- Polymer crystallization and properties
- Essential Oils and Antimicrobial Activity
- Nanocomposite Films for Food Packaging
- Lignin and Wood Chemistry
- Flame retardant materials and properties
- Polymer Nanocomposites and Properties
- biodegradable polymer synthesis and properties
- Electrospun Nanofibers in Biomedical Applications
- Phytochemistry and Biological Activities
- Municipal Solid Waste Management
- Toxic Organic Pollutants Impact
- Fiber-reinforced polymer composites
- Cultural Heritage Materials Analysis
- Catalytic Processes in Materials Science
- Advanced Chemical Sensor Technologies
- Coal and Its By-products
- Catalysis and Hydrodesulfurization Studies
- Bee Products Chemical Analysis
- Postharvest Quality and Shelf Life Management
- Building materials and conservation
Universitatea Națională de Știință și Tehnologie Politehnica București
2024
Institute of Macromolecular Chemistry
2002-2023
Institutul de Chimie Macromoleculară Petru Poni
2002-2023
Romanian Academy
2003-2022
Grigore T. Popa University of Medicine and Pharmacy
2019
Alexandru Ioan Cuza University
2019
Ege University
2008
Okayama University
2000-2007
Plasticized poly(lactic acid) (PLA) samples with embedded Cu-doped ZnO powder functionalized Ag nanoparticles composites were prepared by melt blending processing technique.The effect of ZnO:Cu/Ag on the properties plasticized PLA was investigated in terms structural (by Attenuated total reflectance -Fourier Transform Infrared -ATR-FT-IR, X-Ray Diffraction analysis -XRD) and morphological (using Scanning Electron Microscopy -SEM Transmission -TEM examination) modifications, thermal...
Biopolymer nanocomposite films were prepared by casting film-forming emulsions based on chitosan/Tween 80/rosehip seed oil and dispersed montmorillonite nanoclay C30B. The effect of composition structural, morphological characteristics and, mechanical, barrier, antimicrobial antioxidant properties was studied. presence rosehip in chitosan led to the formation flexible with improved gas water vapour barrier activity. vitro antibacterial tests against Escherichia coli, Salmonella typhymurium,...
The aim of this study was to evaluate the antibacterial activity coriander essential oil and its major constituent, linalool, in combination with antibiotics against Gram-positive (methicillin-susceptible methicillin-resistant Staphylococcus aureus, S. epidermidis) Gram-negative bacteria (Pseudomonas aeruginosa, Escherichia coli). chemical composition analyzed by gas chromatography flame ionization mass spectrometry detection. oil, linalool their combinations were assessed broth...
The antifungal, antibacterial, and antioxidant activity of four commercial essential oils (EOs) (thyme, clove, rosemary, tea tree) from Romanian production were studied in order to assess them as bioactive compounds for active food packaging applications. chemical composition the was determined with Folin-Ciocâlteu method gas chromatography coupled mass spectrometry flame ionization detectors, it found that they respect AFNOR/ISO standard limits. EOs tested against three spoilage fungi-
Here we introduce a new method aiming the immobilization of bioactive principles onto polymeric substrates, combining surface activation and emulsion entrapment approach. Natural products with antimicrobial/antioxidant properties (essential oil from Syzygium aromaticum—clove vegetal Argania spinosa L—argan) were stabilized in emulsions chitosan, natural biodegradable polymer that has antimicrobial activity. The laid on poly(lactic acid) (PLA), synthetic plastic renewable resources, which was...
New multifunctional materials containing additives derived from natural resources as powdered rosemary ethanolic extract were obtained by melt mixing and processed in good conditions without degradation loss of additives. Incorporation (R) into poly(lactic acid) (PLA) improved elongation at break, rheological properties, antibacterial antioxidant activities, addition to the biocompatibility. The accordance between results chemiluminescence method radical scavenging activity determination...
The essential oil industry of aromatic herbs and spices is currently producing a significant amount by-products, such as the spent plant materials remaining after steam or hydrodistillation, that are simply discarded. aim this study was to comparatively investigate phytochemical composition, antioxidant multi-enzymatic inhibitory potential oils material extractives obtained from cinnamon, cumin, clove, laurel, black pepper. were characterized by presence several markers (cinnamaldehyde,...
The Scientific Committee on Cosmetic and Non-Food Products has identified 26 compounds that may cause contact allergy in consumers when present concentrations above certain legal thresholds a product. Twenty-four of these are volatiles can be analyzed by gas chromatography-mass spectrometry (GC-MS) or electronic nose (e-nose) technologies. This manuscript first describes the use GC-MS approach to identify main volatile original perfumes their counterfeit samples. second part this work...