A5009813940- Dyeing and Modifying Textile Fibers
- Microplastics and Plastic Pollution
- Textile materials and evaluations
- Advanced Sensor and Energy Harvesting Materials
- Recycling and Waste Management Techniques
- Electrospun Nanofibers in Biomedical Applications
- Surface Modification and Superhydrophobicity
- Silk-based biomaterials and applications
- Conducting polymers and applications
- biodegradable polymer synthesis and properties
- Enzyme-mediated dye degradation
- Skin Protection and Aging
- Advanced Cellulose Research Studies
- Flame retardant materials and properties
- Supercapacitor Materials and Fabrication
- Algal biology and biofuel production
- Additive Manufacturing and 3D Printing Technologies
- Color Science and Applications
- Marine Biology and Environmental Chemistry
- Nanocomposite Films for Food Packaging
- Photopolymerization techniques and applications
- Insect Utilization and Effects
- Mercury impact and mitigation studies
- Nanomaterials and Printing Technologies
- Phosphorus and nutrient management
National Research Council
2009-2022
Institute for the Study of Anthropic Impact and Sustainability in the Marine Environment
2022
Institute for Macromolecular Studies
2012-2021
Institute of Structure of Matter
2006-2021
Institute for Coastal Marine Environment
2020
National Academies of Sciences, Engineering, and Medicine
2007-2013
Keratin from wool fibers was extracted with different extraction methods, for example oxidation, reduction, sulfitolysis, and superheated water hydrolysis. Different samples of keratin were characterized by molecular weight determination, FT-IR NIR spectroscopy, amino acid analysis, thermal behavior. While using only the cleavage disulfide bonds takes place; hydrolysis leads to breaking peptide formation low proteins peptides. In spectra keratoses, cysteic appears, as well Bunte salts (–S–SO...
Abstract Research on the electrospinning of nanofibers has increased in recent years because number potential applications different areas, ranging from technical textiles (e.g., filters, composite reinforcements, and protective fabrics) to biomedical commodities devices such as bandages, membranes, bioactive surfaces, porous substrates for tissue engineering, which biocompatible polymers play an essential role. In this work, wool keratin/poly(ethylene oxide) were electrospun aqueous...
A wool fiber sample was submitted to chemical-free steam explosion in view of potential exploitation keratin-based industrial and farm wastes. Fiber keratin converted into a dark-yellow sludge that phase separation by filtration, centrifugation, precipitation the soluble materials from supernatant liquid. The resulting products, when compared with original wool, showed extent disruption histology structure, reduction molecular weight water-soluble peptides free amino acids, change structure...
A large amount of wool produced in the EU region is coarse and low quality. The limited or nonutilization such leads to landfilling causing environmental pollution. In this paper, we studied properties keratin hydrolyzate, by a sustainable hydrolysis process, be used as foaming agent foam dyeing cotton fabrics. This preliminary step on way find possible applications which overcome problem waste byproducts. We report for first time use hydrolyzate auxiliary textile process. surface tension,...
Submicron size fibers (so-called nanofibers) are easily produced with an electrospinning apparatus from polymer solutions of poly(ethylene oxide), poly(vinyl alcohol), and polyamide-6. Electrospinning seems the most powerful tool for fabricating nanofibers. Fibers were directly deposited in form random fiber webs high area-to-volume ratio small porous on ordinary nonwoven filters PET microfibers. Morphology diameter distribution electrospun filaments characterized by SEM investigations. The...
A large amount of coarse wool, practically unserviceable for textile use, is generated in Europe from sheep shearing and butchery. Such a byproduct either dumped, burned, or sent to landfill. Following the European Commission regulations on animal control, raw wool classified as category 3 special waste materials. The collection, storage, transport, treatment, disposal such are subject Union because potential risk human health. This study aims at converting into nitrogen fertilizers...
The purpose of this work is to understand the impact superheated water hydrolysis treatment on chemical properties wool, and compare it with a conventional method alkaline hydrolysis. effects temperature concentration alkali wool were investigated. Superheated was carried out at temperatures 140℃ 170℃, material liquor ratio 1:3 for 1 hour. In hydrolysis, experiments in same conditions using potassium hydroxide (KOH) calcium oxide (CaO) range 5%–15% fiber weight (o.w.f.). concentrations...
The surface of cotton (COT) and polyester (PET) fabrics was modified to create a water-repellent finishing by depositing silica-based film using the sol-gel technique. TEOS (tetraethoxysilane)-based physically sols with 2% 11% on weight fabric (o.w.f.) hydrophobic additives were tested. N-propyltrimethoxysilane (C3), hexadecyltrimethoxysilane (C16) 1H,1H,2H,2H-fluorooctyltriethoxysilane (FOS) investigated as additives. Furthermore, low-temperature plasma pre-treatment used activate COT PET...
Marine plastic pollution represents a major problem owing to its increasing presence in the environment, persistence and ability spread every compartment form of small particles, namely microplastics (MPs). Studies concerning MPs abundance Mediterranean Sea are growing, but their occurrence Southern regions remains largely unexplored. In this study, distribution, abundance, size, polymer type were investigated surface water samples collected with Manta net (200 μm mesh size) 118 marine...
Abstract Protein material resulting from chemical free steam explosion of wool was mixed in different proportion with polyamide 6 formic acid. The viscosity the blend solutions decreases increase protein amount blend. Nanofibres produced by electrospinning these polymer blends show an filament diameters increasing amounts, except for 30/70 v/v 6/protein blend, where nanofibres “beads” defects were produced. In films casting, crystallize form large spherulites prevalently α crystalline...
The interest towards microcapsules based on non-toxic, biodegradable and biocompatible polymers, such as proteins, is increasing considerably. In this work, were prepared using water soluble keratin, known keratoses, with the aim of encapsulating hydrophilic molecules. Keratoses obtained via oxidizing extraction pristine wool, previously degreased by Soxhlet. order to better understand shell part microcapsules, wool keratoses investigated FT-IR, gel-electrophoresis HPLC. Production was...