Exploració per autor "Tzanov, Tzanko"
Ara es mostren els items 23-42 de 98
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Durable antimicrobial cotton textiles coated sonochemically with ZnO nanoparticles embedded in an in-situ enzymatically generated bioadhesive
Salat, Marc; Petkova, Petya; Hoyo Pérez, Javier; Perelshtein, Ilana; Gedanken, Aharon; Tzanov, Tzanko (2018-02-14)
Article
Accés obertAn important preventive measure for providing a bacteria-free environment for the patients is the introduction of highly efficient and durable antibacterial textiles in hospitals. This work describes a single step ... -
Effect of thiol-functionalisation on chitosan antibacterial activity: interaction with a bacterial membrane model
Macedo Fernandes, Margarida Maria; Francesko, Antonio; Torrent Burgués, Juan; Tzanov, Tzanko (2013-01-12)
Article
Accés restringit per política de l'editorialThe antibacterial activity of chitosan modified with the thiol-containing 2-iminothiolane HCl (TC-IMI) and N-acetyl- L -cysteine (TC-NAC) was studied by Langmuir film balance technique using a dipalmitoylphos- phatidylglycerol ... -
Effects of alkyl chain lengths of gallates upon enzymatic wool functionalisation
Gaffar Hossain, Kh. M.; Díaz González, María; Dagá Monmany, José María; Tzanov, Tzanko (2010-08-24)
Article
Accés restringit per política de l'editorialThe covalent grafting of alkyl gallates on wool through a laccase catalysed reaction in 80/20 (v/v, %)aqueous–ethanol mixture provided in a one-step process a multifunctional textile material with antioxidant, antibacterial ... -
Electrical evaluation of bacterial virulence factors using nanopores
Escosura Muñiz, Alfredo de la; Ivanova, Kristina Dimitrova; Tzanov, Tzanko (2019-03-19)
Article
Accés obertIn this work, we propose a novel methodology for electrical monitoring using nanoporous alumina membranes of virulence factors secreted by bacterial pathogens. Bacterial hyaluronidase (HYAL), which is produced by a number ... -
Electrical monitoring of infection biomarkers in chronic wounds using nanochannels
Iglesias-Mayor, Alba; Amor-Gutiérez, Olaya; Toyos-Rodríguez, Celia; Bassegoda Puigdomenech, Arnau; Tzanov, Tzanko; Escosura-Muñiz, Alfredo de la (2022-08-01)
Article
Accés obertChronic wounds represent an important healthcare challenge in developed countries, being wound infection a serious complication with significant impact on patients’ life conditions. However, there is a lack of methods ... -
Electrochemical insights on the hydrophobicity of cellulose substrates imparted by the enzymatically-oxidized gallates with increasing alkyl chain length
Cusola Aumedes, Oriol; Valls Vidal, Cristina; Vidal Lluciá, Teresa; Tzanov, Tzanko; Roncero Vivero, María Blanca (2015-06-09)
Article
Accés obertIn this work, we studied the influence of the alkyl chain length in enzymatically-oxidized gallates on the development of hydrophobicity on paper-based materials, and further correlated the obtained effect to the redox ... -
Electrochemical quantification of biomarker myeloperoxidase
Hoyo Pérez, Javier; Bassegoda Puigdomenech, Arnau; Tzanov, Tzanko (2022-07)
Article
Accés obertPoint of care testing (PoCT) devices permit precise and rapid detection of disease-related biomarkers contributing to an early disease diagnosis and administration of an appropriate treatment. The enzyme myeloperoxidase ... -
Electrospinning of gelatin fibers using solutions with low acetic acid concentration: effect of solvent composition on both diameter of electrospun fibers and cytotoxicity
Erencia Millan, Maria Salud; Cano Casas, Francesc; Tornero García, José Antonio; Macedo Fernandes, Margarida Maria; Tzanov, Tzanko; Macanás de Benito, Jorge; Carrillo Navarrete, Fernando (Wiley, 2015-03-13)
Article
Accés obertGelatin fibers were prepared by electrospinning of gelatin/acetic acid/water ternary mixtures with the aim of studying the feasibility of fabricating gelatin nanofiber mats at room temperature using an alternative benign ... -
Engineering a point-of-care paper-microfluidic electrochemical device applied to the multiplexed quantitative detection of biomarkers in sputum
Gutierrez Capitan, Manuel; Sanchís Villariz, Ana; Carvalho, Estela; Baldi Coll, Antonio; Vilaplana Holgado, Lluïsa; Cardoso, Vanessa; Calleja Navalpotro, Álvaro; Wei, Mingxing; de la Rica, Roberto; Hoyo Pérez, Javier; Bassegoda Puigdomenech, Arnau; Tzanov, Tzanko; Marco Colas, María Pilar; Lanceros Méndez, Senentxu; Fernandez Sanchez, Cesar (American Chemical Society (ACS), 2023-07-19)
Article
Accés obertHealth initiatives worldwide demand affordable point- of-care devices to aid in the reduction of morbidity and mortality rates of high-incidence infectious and noncommunicable diseases. However, the production of robust ... -
Enzymatic functionalization of cork surface with antimicrobial hybrid biopolymer/silver nanoparticles
Francesko, Antonio; Blandon, Lucas; Vázquez, Mario; Petkova Petkova, Petya Stoyanova; Morató Farreras, Jordi; Pfeifer, Annett; Heinze, Thomas; Mendoza Gómez, Ernesto; Tzanov, Tzanko (2015-05-13)
Article
Accés obertLaccase-assisted assembling of hybrid biopolymer-silver nanoparticles and cork matrices into an antimicrobial material with potential for water remediation is herein described. Amino-functional biopolymers were first used ... -
Enzymatic pre-treament as a means of enhancing the antibacterial activity and stability of ZnO nanoparticles sonochemically coated on cotton fabrics
Gedanken, Aharon; Mollá, Korina; Blanes, María; Perelshtein, Ilana; Ruderman, Yelena; Perkas, Nina; Traeger, Kamelia; Tzanov, Tzanko; Beddow, Jamie; Joyce, Eadaoin; Mason, Timothy J. (2012-03-15)
Article
Accés restringit per política de l'editorialZinc oxide nanoparticles (ZnO NP’s) are known for their excellent antibacterial properties. This paper describes a method for enhancing the stability and the antibacterial activity of ZnO NPs synthesized and embedded ... -
Enzymatic synthesis of a thiolated chitosan-based wound dressing crosslinked with chicoric acid
Stefanov, Ivaylo; Hinojosa Caballero, Dolores; Maspoch, Santiago; Hoyo Pérez, Javier; Tzanov, Tzanko (Royal Society of Chemistry (RSC), 2018-10-26)
Article
Accés obertThis work describes the enzymatic synthesis of multifunctional hydrogels for chronic wound treatment using thiolated chitosan and the natural polyphenol chicoric acid. Gelation was achieved by ... -
Enzyme multilayer coatings inhibit Pseudomonas aeruginosa biofilm formation on urinary catheters
Ivanova, Kristina Dimitrova; Macedo Fernandes, Margarida Maria; Mendoza Gómez, Ernesto; Tzanov, Tzanko (2015-01-15)
Article
Accés obertBacteria use a signaling mechanism called quorum sensing (QS) to form complex communities of surface-attached cells known as biofilms. This protective mode of growth allows them to resist antibiotic treatment and originates ... -
Enzyme-assisted formation of hybrid biopolymer hydrogels incorporating active phenolic nanospheres
Petkova Petkova, Petya Stoyanova; Francesko, Antonio; Tzanov, Tzanko (2015-02-01)
Article
Accés restringit per política de l'editorialThis work is about the synthesis of hybrid nanocomposite hydrogels comprising a thiolated chitosan platform that incorporates epigallocatechin gallate nanospheres as active polyphenolic agents for wound healing applications. ... -
Enzyme-mediated coupling of a bi-functional phenolic compound onto wool to enhance its physical, mechanical and functional properties
Gaffar Hossain, Kh. M.; Díaz González, María; Riva Juan, Ascensión; Tzanov, Tzanko (2010-03)
Article
Accés obertWool fibres have been modified with nordihydroguaiaretic acid (NDGA) to improve their performance at use. This water insoluble bi-functional phenolic compound has been grafted on wool through a laccase enzyme catalyzed ... -
Escherichia coli and pseudomonas aeruginosa eradication by nano-penicillin G
Macedo Fernandes, Margarida Maria; Ivanova, Kristina Dimitrova; Francesko, Antonio; Rivera, Diana; Torrent Burgués, Juan; Mendoza Gómez, Ernesto; Tzanov, Tzanko (2016-06-09)
Article
Accés obertThe transformation of penicillin G into nano/micro-sized spheres (nanopenicillin) using sonochemical technology was explored as a novel tool for the eradication of Gram-negative bacteria and their biofilms. Known by its ... -
Functional biopolymer-based matrices for modulation of chronic wound enzyme activities
Francesko, Antonio; Soares da Costa, Diana; Reis, Rui L.; Pashkuleva, Iva; Tzanov, Tzanko (2012-10-13)
Article
Accés restringit per política de l'editorialCollagen, collagen/hyaluronic acid (HA) and collagen/HA/chitosan (CS) sponges loaded with epigallocatechin gallate (EGCG), catechin (CAT) and gallic acid (GA) were developed and evaluated as active chronic wound dressings. ... -
GAGs-thiolated chitosan assemblies for chronic wounds treatment: control of enzyme activity and cell attachment
Francesko, Antonio; Soares da Costa, Diana; Lisboa, Patricia; Reis, Rui L.; Tzanov, Tzanko; Iva Hristova, Pashkuleva (2012-04-20)
Article
Accés restringit per política de l'editorialMultilayered polyelectrolyte coatings comprising thiolated chitosan (TC) and glycosaminoglycans (GAGs), chondroitin sulphate and hyaluronic acid, were built using a layer-by-layer approach. The surface activity of these ... -
Hyaluronic acid derivative molecular weight-dependent synthesis and antimicrobial effect of hybrid silver nanoparticles
Ferreres Cabanes, Guillem; Pérez Rafael, Silvia; Torrent Burgués, Juan; Tzanov, Tzanko (2021-12-14)
Article
Accés obertSilver nanoparticles (Ag NPs) appeared as promising antimicrobial candidates to face the development of antibiotic resistance. Although reported as toxic towards mammalian cells, their combination with biomolecules have ... -
Hybrid chitosan-silver nanoparticles enzymatically-embedded on cork filter material for water disinfection
Garcia Peña, Lina Vanesa; Petkova, Petya; Margalef-Marti, Rosanna; Vives, Marc; Aguilar, Lorena; Gallegos, Angel; Francesko, Antonio; Perelshtein, Ilana; Gedanken, Aharon; Mendoza Gómez, Ernesto; Casas-Zapata, Juan Carlos; Morató Farreras, Jordi; Tzanov, Tzanko (2017-04-05)
Article
Accés restringit per política de l'editorialMicrobial contamination remains a major challenge in supply of drinking water in developing regions, despite the continuous advances being made in water purification processes. The spread and transmission of pathogens due ...