Luis J. del Valle
Polytechnic University of Catalonia
BiophysicsConductive polymerElectrospinningNanoparticleCopolymerPEDOT:PSSNanotechnologyOrganic chemistryChemistryPolymer chemistryMaterials scienceCrystallizationBiocompatibilityPolythiopheneDrug deliveryChemical engineeringPolymerizationCrystallinityPolymerMedicineBiologyNanofiber
193Publications
27H-index
2,501Citations
Publications 186
Newest
Background and Objectives Pertussis is an infectious disease caused by the Gram-negative bacterium Bordetella pertussis. In Peru, actual public health programs indicate that vaccination against B. pertussis must be mandatory and generalized, besides all detected cases must be reported. The objective of this study was to determine the prevalence of B. pertussis among children under five years of age with a presumptive diagnosis of whopping cough in Cajamarca, a region located in northern Peru. Ma...
Source
#1Vanessa Ribeiro Urbano (UPC: Polytechnic University of Catalonia)H-Index: 4
#1Vanessa Ribeiro Urbano (UPC: Polytechnic University of Catalonia)
Last. Montserrat Pérez-Moya (UPC: Polytechnic University of Catalonia)H-Index: 14
view all 5 authors...
Sulfaquinoxaline (SQX) has been detected in environmental water samples, where its side effects are still unknown. To the best of our knowledge, its oxidation by Fenton and photo-Fenton processes has not been previously reported. In this study, SQX oxidation, mineralization, and toxicity (Escherichia coli and Staphylococcus aureus bacteria) were evaluated at two different setups: laboratory bench (2 L) and pilot plant (15 L). The experimental design was used to assess the influence of the presen...
Source
#1Miguel Angel Aguilar-Luis (UPC: Universidad Peruana de Ciencias Aplicadas)H-Index: 9
#2Juana del Valle-Mendoza (UPC: Universidad Peruana de Ciencias Aplicadas)H-Index: 10
Last. Luis J. del Valle (UPC: Polytechnic University of Catalonia)H-Index: 27
view all 12 authors...
Objective To describe frequency and clinical characteristics of MAYV infection in Piura, as well as the association of this pathogen with DENV. Results A total of 86/496 (17.3%) cases of MAYV were detected, of which 54 were MAYV mono-infection and 32 were co-infection with DENV, accounting for 10.9% and 6.4%, respectively. When evaluating monoinfection by MAYV the main groups were 18-39 and 40-59 years old, with 25.9% and 20.4% respectively. Co-infections were more common in the age group 18-39 ...
1 CitationsSource
#1Hugo Carrillo-Ng (UPC: Universidad Peruana de Ciencias Aplicadas)H-Index: 3
Last. Juana del Valle-Mendoza (UPC: Universidad Peruana de Ciencias Aplicadas)H-Index: 10
view all 12 authors...
OBJECTIVE To characterize the cervicovaginal microbiota of HPV-positive and HPV-negative asymptomatic Peruvian women, by identifying the presence of 13 representative bacteria genus. RESULTS A total of 100 HPV-positive and 100 HPV-negative women were matched by age for comparison of microbiota. The following bacteria were more frequently identified in HPV-positive patients compared to HPV-negative: Eubacterium (68 vs 32%), Actinobacteria (46 vs 33%), Fusobacterium (11 vs 6%) and Bacteroides (20 ...
Source
#1Luis J. del ValleH-Index: 27
#2Jordi PuiggalíH-Index: 1
Source
#1Ina Keridou (UPC: Polytechnic University of Catalonia)H-Index: 4
#2Lourdes Franco (UPC: Polytechnic University of Catalonia)H-Index: 25
Last. Jordi Puiggalí (UPC: Polytechnic University of Catalonia)H-Index: 39
view all 7 authors...
Abstract Hydrolytic degradation of poly(4-hydroxybutyrate) (P4HB) films has been studied considering media of different pH values (i.e., 3, 7 and 10) and temperatures (i.e., 37 and 55 °C). Enzymatic degradation has also been evaluated at physiological conditions using two different lipases: Pseudomonas cepacia and Rhizopus oryzae. Different bulk and surface erosion mechanisms with random chain scissions and successive removal of monomer units have been supported through weight loss measurements,...
1 CitationsSource
#1Yogesh PoreH-Index: 15
#2Priyanka H. JadhavH-Index: 2
Last. Felix Osarumhense AgueleH-Index: 1
view all 31 authors...
Source
#1Reza Zeinali (IAU: Islamic Azad University)H-Index: 1
#1Reza Zeinali (IAU: Islamic Azad University)
Last. Jordi Puiggalí (UPC: Polytechnic University of Catalonia)H-Index: 39
view all 6 authors...
Thermally induced phase separation followed by freeze drying has been used to prepare biodegradable and biocompatible scaffolds with interconnected 3D microporous structures from poly(hydroxybutyrate-co-hydroxyvalerate) (PHBV) copolymers containing 5 and 12 wt % of 3-hydroxyvalerate (HV). Solutions of PHBV in 1,4-dioxane, underwent phase separation by cooling under two different thermal gradients (at −25 °C and −5 °C). The cloud point and crystallization temperature of the polymer solutions were...
1 CitationsSource
#1Andre Alonso Taco-Masias (UPC: Universidad Peruana de Ciencias Aplicadas)H-Index: 1
#2Augusto Rafael Fernandez-Aristi (UPC: Universidad Peruana de Ciencias Aplicadas)H-Index: 1
Last. Juana del Valle-Mendoza (UPC: Universidad Peruana de Ciencias Aplicadas)H-Index: 10
view all 12 authors...
Background Acute infective gastroenteritis (AIG) is a leading cause of mortality in children worldwide. In Peru, more than 40% of cases of AIG occurring in children under 5 years old. The disruption of the gut microbiota can increase risk for several health complications especially in patients with gastric infections caused by viruses or bacteria. Objective The main objective of this study was to describe the prevalence of 13 representative bacteria from the gut microbiota (GM) in stools samples...
Source
#1Brenda G. MolinaH-Index: 4
#2Anca D. BendreaH-Index: 1
Last. Carlos AlemánH-Index: 56
view all 11 authors...
Development of smart functionalized materials for tissue engineering has attracted significant attention in recent years. In this work we have functionalized a free-standing film of isotactic polypropylene (i-PP), a synthetic polymer that is typically used for biomedical applications (e.g. fabrication of implants), for engineering a 3D all-polymer flexible interface that enhances cell proliferation by a factor of ca. three. A hierarchical construction process consisting of three steps was engine...
Source