Luis J. del Valle
Polytechnic University of Catalonia
BiophysicsConductive polymerElectrospinningNanoparticleCopolymerPEDOT:PSSNanotechnologyOrganic chemistryChemistryPolymer chemistryMaterials scienceCrystallizationBiocompatibilityPolythiopheneDrug deliveryChemical engineeringPolymerizationCrystallinityPolymerMedicineBiologyNanofiber
193Publications
27H-index
2,501Citations
Publications 186
Newest
#1Jordi Puiggalí (UPC: Polytechnic University of Catalonia)H-Index: 39
#2Luis J. del Valle (UPC: Polytechnic University of Catalonia)H-Index: 27
Last. Ramaz Katsarava (UGA: University of Georgia)H-Index: 19
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Abstract The present chapter is centered on the recent advances of bionanocomposites with applied interest in the biomedical field. The chapter is highly generalist due to the great variety of nanoparticles and polymers that are involved, being selected significant and relevant systems that are employed for regeneration of hard and soft tissues as well as drug delivery systems with targeted and triggered release. Most of the important nanomaterials and polymers, which are not covered in the earl...
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#1Fiorella Ricapa-Antay (UPC: Universidad Peruana de Ciencias Aplicadas)H-Index: 1
#2Katia Diaz-Melon (UPC: Universidad Peruana de Ciencias Aplicadas)H-Index: 1
Last. Juana del Valle-Mendoza (UPC: Universidad Peruana de Ciencias Aplicadas)H-Index: 10
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Acute febrile illness (AFI) represent a significant health challenge in the Peruvian Amazon basin population due to their diverse etiologies and the unavailability of specific on-site diagnostic methods, resulting in underreporting of cases. In Peru, one of the most endemic regions to dengue and leptospirosis is Madre de Dios, a region also endemic to emergent bacterial etiologic agents of AFI, such as bartonellosis and rickettsiosis, whose prevalence is usually underreported. We aimed to molecu...
5 CitationsSource
#1Miguel Angel Aguilar-Luis (UPC: Universidad Peruana de Ciencias Aplicadas)H-Index: 9
#2Fernando Palacios-Cuervo (UPC: Universidad Peruana de Ciencias Aplicadas)H-Index: 1
Last. Luis J. del Valle (UPC: Polytechnic University of Catalonia)H-Index: 27
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The objective of this study was to determine the prevalence of clarithromycin-resistant Helicobacter pylori in asymptomatic children in a rural community of Cajamarca (northern Peru). Helicobacter pylori was detected in 17.2% (49/285) of the samples. Unboiled water consumption the most frequent associated factor in patients with positive PCR for H. pylori infection (93.9%). Clarithromycin resistant mutations were found in 79.6% (39/49) of the positive samples for H. pylori. The most frequent mut...
2 CitationsSource
#1Gabriela M. Ulloa (UPCH: Cayetano Heredia University)H-Index: 1
#2Fernando Vasquez-Achaya (UPC: Universidad Peruana de Ciencias Aplicadas)H-Index: 5
Last. Juana del Valle Mendoza (UPC: Universidad Peruana de Ciencias Aplicadas)H-Index: 9
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Abstract. Carrion’s disease is a neglected, vector-borne illness that affects Colombia, Ecuador, and especially Peru. The phlebotomine sand flies Lutzomyia verrucarum and Lutzomyia peruensis are the main illness vectors described, although other species may be implicated in endemic areas such as some northern Peruvian regions, in which Carrion’s disease vector has not been established. The aim of this study was to evaluate the presence of Bartonella bacilliformis DNA in Lutzomyia maranonensis fr...
4 CitationsSource
#1Anna Puiggalí-Jou (UPC: Polytechnic University of Catalonia)H-Index: 7
#2Alberto Cejudo (UPC: Polytechnic University of Catalonia)H-Index: 1
Last. Carlos Alemán (UPC: Polytechnic University of Catalonia)H-Index: 56
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Electrospun poly(e-caprolactone) (PCL) microfibers loaded with poly(3,4-ethylenedioxythiophene) nanoparticles (PEDOT NPs) and curcumin with diameter of 3.9 ± 0.7 μm have been prepared and subsequently characterized using different spectroscopic techniques, scanning electron microscopy, and atomic force microscopy. PEDOT NPs, which are mainly located inside the PCL microfibers, exhibit a diameter of 99 ± 21 nm. PEDOT- and curcumin-containing PCL microfibers behave as extracellular cell matrices, ...
11 CitationsSource
#1Fatma Larbi (University of Oran)H-Index: 1
#1Fatma Larbi (University of Oran)H-Index: 2
Last. Julien Bras (CNRS: Centre national de la recherche scientifique)H-Index: 62
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Abstract Process simulation is a useful tool that has been widely used to analyze, design and optimize energy balances in chemical technologies including those related to biomass processing, biorefinery processes and chemical engineering. The presented data set serves as basis for the simulation of chitin purification, nanofibers and nanocrystals production processes, considering laboratory experimental procedures described in previous experimental articles.
2 CitationsSource
#1Fatma Larbi (University of Oran)H-Index: 2
#2Araceli García (UCO: University of Córdoba (Spain))H-Index: 28
Last. Julien Bras (CNRS: Centre national de la recherche scientifique)H-Index: 62
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Abstract Chitin nanocrystals (ChNCs) and chitin nanofibers (ChNFs) are nanomaterials with great innovative potential for sustainable applications in academic and industrial fields. The research related to their isolation and production, characterization, and utilization is still new. The aim of this study is to investigate the effects of the production process on the morphology and properties of ChNFs and ChNCs produced from the same source of chitin. ChNCs were prepared by acid hydrolysis of co...
36 CitationsSource
#1Luis J. del Valle (UPC: Polytechnic University of Catalonia)H-Index: 27
#2Marta Ginovart (UPC: Polytechnic University of Catalonia)H-Index: 14
Last. Rosa Carbó (UPC: Polytechnic University of Catalonia)H-Index: 7
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The relationship between histidine decarboxylase-positive (hdc+) lactic acid bacteria (LAB) counts and the amounts of biogenic amines, particularly histamine, in cheeses made with and without LAB starter were investigated. Sixty LAB strains were isolated from ripened cheeses made with raw milk inoculated with lactic starter and cheeses without starter. The strains were identified by carbohydrate fermentation test and the histidine decarboxylase gene was determined by PCR. Biogenic amine contents...
1 CitationsSource
#1Anna Puiggalí-Jou (UPC: Polytechnic University of Catalonia)H-Index: 7
#2Jan Pawlowski (University of Warsaw)H-Index: 84
Last. Carlos Alemán (UPC: Polytechnic University of Catalonia)H-Index: 56
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Omp2a β-barrel outer membrane protein has been reconstituted into supported lipid bilayers (SLBs) to compare the nanomechanical properties (elastic modulus, adhesion forces, and deformation) and functionality of the resulting bioinspired system with those of Omp2a-based polymeric nanomembranes (NMs). Protein reconstitution into lipid bilayers has been performed using different strategies, the most successful one consisting of a detergent-mediated process into preformed liposomes. The elastic mod...
3 CitationsSource
#1Brenda G. Molina (UPC: Polytechnic University of Catalonia)H-Index: 4
#2Luminita CiangaH-Index: 11
Last. Elaine Armelin (UPC: Polytechnic University of Catalonia)H-Index: 32
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New amphiphilic poly(ethylene glycol) (PEG)-grafted random intrinsically conducting copolymers which combine three different functionalities have been engineered, prepared and characterized. Specifically, these “rod-coil” type copolymers bear conducting polypyrrole (PPy) and poly(Schiff base) (PSB) sequences randomly distributed in their backbones; hydrophilic grafted side chains consisting of well-defined PEG chains are attached to the PSB units. Basically, the synthesis of the copolymers is co...
13 CitationsSource