3 research outputs found
The success of a collective mobilization
No full textTania Scacchetti, General Secretary of CGIL, introduces a comment on the collective agreement by Just Eat and Filt CIGL, Fit CISL, UIL Trasporti. The Author explains the
legislative and negotiating framework in which the last collective agreement was born and reconstructs the antecedents that led to its stipulation. She also discusses what she considers to be the salient parts of the contract, including the regulation of working time and rider compensation
Functionalization and characterization of cotton with phase change materials and thyme oil encapsulated in beta-cyclodextrins
No full textThe aim of this work was to study the production of comfortable cotton plain-weave fabrics withantibacterial and antifungal characteristics through a simple finishing process, which consists in apply-ing microcapsules of phase change materials (mPCM), monochlorotriazinyl- -cyclodextrin (MCT- -CD)and thyme oil. The fabrics were characterized by Infrared Spectroscopy (FTIR), Differential ScanningCalorimetry (DSC), Contact Angle and Infrared Thermography. The thyme oil release was also analyzed,as well as the antibacterial and antifungal activity. The materials treated with 20 L/mL of thyme oilhave shown anomalous oil release mechanisms, according to the Korsmeyer-Peppas model, and activityagainst Staphylococcus aureus, Escherichia coli, Trichophyton rubrum, Pseudomonas aeruginosa and Candidaalbicans.Therefore, it was reached the conclusion that mPCM, conjugated with thyme oil encapsulated in MCT- -CD, proved to be an interesting option to produce materials possessing thermoregulation propertieswith putative clinical relevance for the prevention of infections, particularly dermatophytosis.The main author wishes to express thanks to the CNPq-Brazil (Conselho Nacional de
Desenvolvimento Científico e Tecnológico – Brasil / National Council of Scientific and
Technological Development – Brazil) for the doctoral scholarship (233550/2014-3).
This work is also funded by FEDER funds through the Competitivity Factors Operational
Programme - COMPETE and by national funds through FCT – Foundation for Science and
Technology within the scope of the project POCI-01-0145-FEDER-007136
This research was partially supported by the Strategic Funding UID/Multi/04423/2013 through
national funds provided by FCT - Foundation for Science and Technology and European
Regional Development Fund (ERDF), in the framework of the program PT2020.info:eu-repo/semantics/publishedVersio
The function of ß-Cyclodextrin (CDs) in the textile industry: a detailed review
No full textSince the first publication of cyclodextrins (CDs) in 1891 and the first patent in 1953, many technological advances have occurred, and the application of CDs has expanded. ß-Cyclodextrin (ß-CD) is an oligosaccharide composed of seven units of D-(+)-glucopyranose joined by a-1,4 bonds, which is obtained from starch. Its singular trunk conical shape organization, with a well-defined cavity, provides an adequate environment for several types of molecules to be included. Complexation changes the properties of the guest molecules and can increase their stability and bioavailability, protecting against degradation, and reducing their volatility. Thanks to its versatility, biocompatibility, and biodegradability, ß-CD is widespread in many research and industrial applications. In this review, the role of ß-CD and its derivatives in the textile industry was summarized. First, some general physicochemical characteristics were presented, followed by their application in the areas of dyeing, finishing, and wastewater treatment. The review covers the role of ß-CD as an auxiliary agent in dyeing, and as a matrix for dye adsorption until chemical modifications are applied as a finishing agent. The study concluded that the increasing use of CDs in the textile industry is the result, among other factors, of the versatility of these cyclic molecules and the benefits of their use across the productive chain of this sector. Their unique ability to form an inclusion complex with a wide variety of molecules allows their use in several sectors. Finally, new perspectives about its use in textiles, such as in smart materials for microbial control, are presentedINTEXTER-UPC, UTFPR-AP and National Council for Scientific and Technological Development (CNPq). The author José Alexandre Borges Valle are grateful to CAPES-PRINT, project number 88887.310560/2018-00Postprint (published version
