A5037020641- Advanced Cellulose Research Studies
- biodegradable polymer synthesis and properties
- Electrospun Nanofibers in Biomedical Applications
- Polymer Nanocomposites and Properties
- Natural Fiber Reinforced Composites
- Dielectric materials and actuators
- Nanocomposite Films for Food Packaging
- Polymer crystallization and properties
- Amoebic Infections and Treatments
- Parasitic Infections and Diagnostics
- Advanced Sensor and Energy Harvesting Materials
- High voltage insulation and dielectric phenomena
- Parasitic infections in humans and animals
- Conducting polymers and applications
- Silicone and Siloxane Chemistry
- Insects and Parasite Interactions
- Microplastics and Plastic Pollution
- Polymer Nanocomposite Synthesis and Irradiation
- Electromagnetic wave absorption materials
- Lignin and Wood Chemistry
- Toxoplasma gondii Research Studies
- Reproductive tract infections research
- Parasites and Host Interactions
- Helminth infection and control
- Additive Manufacturing and 3D Printing Technologies
Institutul Naţional de Cercetare Dezvoltare pentru Chimie si Petrochimie
2016-2025
National Institute for Research and Development in Informatics - ICI Bucharest
2014-2025
National Institute for Research and Development in Environmental Protection
2015-2024
Institute for Research and Development
2010-2016
Research & Development Institute
2015
National Institute of Research and Development for Electrochemistry and Condensed
2011
Carol Davila University of Medicine and Pharmacy
2009
National Institute of Materials Physics
2004-2005
Institutul Cantacuzino
1981-2002
Academy of Romanian Scientists
1998
Cellulose nanofibers were obtained from microcrystalline cellulose (MCC) by the action of hydrodynamic forces associated with ultrasound. Nanofibers isolated MCC applying different ultrasonication conditions characterized to elucidate their morpho-structural features field emission scanning electron microscopy, atomic force X-ray diffraction, and dynamic light scattering. Several differences observed regarding size in ultrasonic conditions, but no significant changes crystalline structure...
We focused on preparing cellulose nanofibrils by purification, separation, and mechanical treatment of Kombucha membranes (KM) resulted as secondary product from beverage production fermentation tea broth with symbiotic culture bacteria yeast (SCOBY). purified KM using two alkaline solutions, 1 4 M NaOH, which afterwards were subjected to various treatments. Transmission electron microscopy (TEM), scanning (SEM), dynamic light scattering (DLS), X-ray diffraction (XRD), fluorescence (XRF),...
Abstract Polymer composites from polylactic acid (PLA) and two types of cellulose fibers obtained either by hydrolysis microcrystalline (HMCC) or mechanical disintegration regenerated wood (MF) were prepared characterized. To enhance the compatibility with PLA matrix, a surface treatment based on 3‐aminopropyltriethoxysilane (APS) was performed. The Fourier Transform Infrared (FTIR) spectroscopy used to determine chemical groups involved in modification reaction. silanization resulted...
Biodegradable blends and nanocomposites were produced from polylactic acid (PLA), poly(3-hydroxybutyrate) (PHB) cellulose nanocrystals (NC) by a single step reactive blending process using dicumyl peroxide (DCP) as cross-linking agent. With the aim of gaining more insight into impact processing methods upon morphological, thermal mechanical properties these nanocomposites, three different techniques employed: compression molding, extrusion, 3D printing. The addition DCP improved interfacial...
ABSTRACT The widespread application of poly(3‐hydroxybutyrate) (PHB) in the food packaging and biomedical fields has been hindered by its high brittleness, slow crystallization, poor thermal stability, narrow processing window. To overcome these limitations, a mixture biodegradable biocompatible plasticizers was used to modify PHB. Epoxidized soybean oil (ESO), acetyl tributyl citrate, poly(ethylene glycol) 4000 (PEG4000), 6000 (PEG6000) were tested improve PHB melt achieve balanced...
In this work, a new eco-friendly method for the treatment of poly(3-hydroxybutyrate) (PHB) as candidate food packaging applications is proposed. Poly(3-hydroxybutyrate) was modified by bacterial cellulose nanofibers (BC) using melt compounding technique and plasma or zinc oxide (ZnO) nanoparticle coating better properties antibacterial activity. Plasma preserved thermal stability, crystallinity melting behavior PHB‒BC nanocomposites, regardless amount BC nanofibers. However, remarkable...
Submerged liquid plasma (SLP) is a new and promising method to modify powder materials. Up now, this technique has been mostly applied carbonaceous materials, however, SLP shows great potential as low-cost environmental-friendly cellulose. In work we demonstrate the modification of microcrystalline cellulose (MCC) by applying combined with ultrasonication treatments. The generated either in an inert (argon) or reactive (argon: oxygen argon:nitrogen) gas was used MCC dispersions water...
Cellulose is a versatile biopolymer increasingly applied in medicine and industry due to its biodegradability biocompatibility, along with the renewability large availability of source materials. However, finding simple, eco-friendly, effective methods modify cellulose provide it new functionalities remains challenge. This work presents new, inexpensive, eco-friendly method chemically microcrystalline (MCC) by submerged cold plasma treatment an aqueous suspension MCC containing different...
Ultra-hydrophobic bilayer coatings on a glass surface were fabricated by sol–gel process using hexadecyltrimethoxysilane (C16TMS) and tetramethoxysilane (TMOS) (1:4 molar ratio) as precursors. After coating, silica nanoparticles (SiO2 NPs) functionalized with different mono-alkoxy derivatives (methoxytrimethylsilane, TMeMS; ethoxydimethylvinylsilane, DMeVES; ethoxydimethylphenylsilane, DMePhES; methoxydimethyloctylsilane, DMeC8MS) added, assuring the microscale roughness surface. Influences...