Exploració per autor "Tzanov, Tzanko"
Ara es mostren els items 21-40 de 99
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Chitosan and chitosan ZnO-based complex nanoparticles: formation, characterization, and antibacterial activity
Perelshtein, Ilana; Ruderman, Yelena; Perkas, Nina; Tzanov, Tzanko; Beddow, Jamie; Joyce, Eadaoin; Mason, Timothy J.; Blanes, María; Mollá, Korina; Patlolla, Anitha; Frenkel, Anatoly I.; Gedanken, Aharon (Royal Society of Chemistry, 2013-02-04)
Article
Accés restringit per política de l'editorial -
Continuous sonochemical nanotransformation of lignin - process design and control
Pérez Rafael, Silvia; Ferreres Cabanes, Guillem; Kessler, Rudolf; Kessler, Waltraud; Blair González, Jeniffer; Rathee, Garima; Morena, Angela Gala; Tzanov, Tzanko (2023-06)
Article
Accés obertAs the most abundant renewable aromatic polymer on the planet, lignin is gaining growing interest in replacing petroleum-based chemicals and products. However, only <5 % of industrial lignin waste is revalorized in its ... -
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 ...