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  1. No Access

    Chapter

    Greater Trochanteric Pain Syndrome (GTPS)

    Greater trochanteric pain syndrome (GTPS) is a frequent disorder characterized by lateral hip pain related to different structural causes including gluteus medius and minimus tendinopathy, bursitis, enthesitis...

    Mickael Tordjman, Fadila Mihoubi, Mohamed Jarraya, Valerie Vuillemin, Luis E. Diaz (2024)

  2. No Access

    Article

    Imaging of common hip pathologies in runners

    Running is an increasingly popular sport and form of exercise. Because of the importance of the hip in the biomechanics involved with running, forming the primary connection between the axial and appendicular ...

    Jonathan M. Friedman, Luis E. Diaz, Frank W. Roemer in Japanese Journal of Radiology (2023)

  3. Article

    Open Access

    Expression of early angiogenesis indicators in mature versus immature teeth

    Proper oxygen balance in the dental pulp is essential for cell metabolism. Angiogenesis in the pulp is a constant process during the life of the tooth. Hypoxia indicators in a tissue, such as HIF-1α, as well a...

    Javier Caviedes-Bucheli, Luis F. Lopez-Moncayo in BMC Oral Health (2020)

  4. No Access

    Article

    Hydrolytic stability and biocompatibility on smooth muscle cells of polyethylene glycol–polycaprolactone-based polyurethanes

    Interactions between smooth muscle cells (SMCs) and biomaterials must not result in phenotype changes as this may generate uncontrolled multiplication processes and occlusions in vascular grafts. The aim of th...

    Maria Morales-Gonzalez, Said Arévalo-Alquichire in Journal of Materials Research (2020)

  5. No Access

    Article

    In vitro and in vivo biocompatibility of polyurethanes synthesized with castor oil polyols for biomedical devices

    Polyurethanes (PUs) were synthesized with polyols derived from castor oil and isophorone diisocyanate. The materials were evaluated for their mechanical properties using stress—strain curves, thermogravimetric...

    Yomaira L. Uscátegui, Luis E. Díaz, Manuel F. Valero in Journal of Materials Research (2019)

  6. No Access

    Article

    Effect of an organotin catalyst on the physicochemical properties and biocompatibility of castor oil-based polyurethane/cellulose composites

    Polyurethane/cellulose composites were synthesized from castor-oil-derived polyols and isophorone diisocyanate using dibutyltin dilaurate (DBTDL) as the catalyst. Materials were obtained by adding 2% cellulose...

    Santiago Villegas-Villalobos, Luis E. Díaz in Journal of Materials Research (2018)

  7. Article

    Open Access

    Use of a mixed culture strategy to isolate halophilic bacteria with antibacterial and cytotoxic activity from the Manaure solar saltern in Colombia

    Water evaporation in solar salterns creates salinity gradients that promote the adaptation of microbial species to different salinities. This competitive habitat challenges the metabolic capabilities of microo...

    Natalia Conde-Martínez, Alejandro Acosta-González, Luis E. Díaz in BMC Microbiology (2017)

  8. No Access

    Article

    Polyurethane-based bioadhesive synthesized from polyols derived from castor oil (Ricinus communis) and low concentration of chitosan

    Polyurethane-based bioadhesive was synthesized with polyols derived from castor oil (chemically modified and unmodified) and hexamethylene diisocyanate with chitosan addition as a bioactive filler. The objecti...

    Yomaira L. Uscátegui, Said J. Arévalo-Alquichire in Journal of Materials Research (2017)

  9. Article

    Open Access

    Imaging of patellar fractures

    Patellar fractures account for approximately 1% of all skeletal fractures and may result from direct, indirect, or combined trauma. Because of the importance of patellar integrity for knee extension and the ri...

    Mohamed Jarraya, Luis E. Diaz, William F. Arndt, Frank W. Roemer in Insights into Imaging (2017)

  10. Article

    Open Access

    Scapholunate advanced collapse: a pictorial review

    Scapholunate advanced collapse (SLAC) is the most common cause of osteoarthritis involving the wrist. Along with clinical investigation, radiological studies play a vital role in the diagnosis of SLAC wrist. G...

    Brian T. Tischler, Luis E. Diaz, Akira M. Murakami in Insights into Imaging (2014)

  11. Article

    Open Access

    Sesamoids and accessory ossicles of the foot: anatomical variability and related pathology

    Sesamoids and accessory ossicles seen in the foot vary widely in their prevalence and appearance. Occasionally, these bones may be associated with painful syndromes, due to various pathologies, including traum...

    O. Kenechi Nwawka, Daichi Hayashi, Luis E. Diaz, Ajay R. Goud in Insights into Imaging (2013)

  12. No Access

    Article

    Egg white lysozyme purification with a chitin–silica-based affinity chromatographic matrix

    A composite biosorbent retaining non-covalently bound chitin in between layers of a silicon oxide matrix was assessed for lysozyme purification from undiluted egg white. The matrix can be shaped with big size ...

    Federico J. Wolman, Guillermo J. Copello in European Food Research and Technology (2010)

  13. No Access

    Article

    Effect of various parameters on viability and growth of bacteria immobilized in sol–gel-derived silica matrices

    Immobilized bacteria are being extensively used for metabolite production, biocatalysts, and biosensor construction. However, long-term viability and metabolic activity of entrapped bacteria is affected by sev...

    Gisela S. Alvarez, María L. Foglia in Applied Microbiology and Biotechnology (2009)

  14. No Access

    Article

    Immobilization of bacteria in silica matrices using citric acid in the sol–gel process

    The aim of this work was to use citric acid in the sol–gel process to generate an inorganic polymer that allows bacterial survival for long periods of time and to study the influence of different storage tempe...

    Gisela S. Alvarez, Martín F. Desimone in Applied Microbiology and Biotechnology (2007)

  15. No Access

    Article

    Efficient preservation in a silicon oxide matrix of Escherichia coli, producer of recombinant proteins

    The aim of this work was to study the use of silicon oxide matrices for the immobilization and preservation of recombinant-protein-producing bacteria. We immobilized Escherichia coli BL21 transformants containing...

    Martín F. Desimone, Mauricio C. De Marzi in Applied Microbiology and Biotechnology (2005)

  16. No Access

    Article

    Sol-gel immobilisation of Saccharomyces cerevisiae enhances viability in organic media

    The polyhydroxylated silane network of a sol-gel protected immobilised Saccharomyces cerevisiae against the effects of five organic solvents. The viability of immobilised yeast directly correlated with the logari...

    Martín F. Desimone, José Degrossi, Miguel D'Aquino, Luis E. Diaz in Biotechnology Letters (2003)

  17. No Access

    Article

    Ethanol tolerance in free and sol-gel immobilised Saccharomyces cerevisiae

    The tolerance of sol-gel immobilised and free Saccharomyces cerevisiae to ethanol was studied. The effects of ethanol preincubation time showed that the specific death velocity decreased from 2×105 c.f.u. min−1 f...

    Martín F. Desimone, José Degrossi, Miguel D'Aquino, Luis E. Diaz in Biotechnology Letters (2002)