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| Vilos,Cristian; Gutiérrez,Marlen; Escobar,Roberto A; Morales,Francisco; Denardin,Juliano C; Velasquez,Luis; Altbir,Dora. |
| Background: The progress in material science and the recent advances in biodegradable/biocompatible polymers and magnetic iron oxide nanoparticles have led to develop innovative diagnostic and therapeutic strategies for diseases based on multifunctional nanoparticles, which include contrast medium for magnetic resonance imaging, agent for hyperthermia and nanocarriers for targeted drug delivery. The aim of this work is to synthesize and characterize superparamagnetic iron oxide (magnetite), and to encapsulate them into poly (3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) nanoparticles for biomedical applications. Results: The magnetite nanoparticles were confirmed by X-ray diffraction and exhibited a size of 22.3 ± 8.8 nm measured by transmission electron... |
| Tipo: Journal article |
Palavras-chave: Hyperthermia; Magnetic resonance image; Magnetite; PHBV; Polymeric nanoparticles. |
| Ano: 2013 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582013000500008 |
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| Romay,Gustavo; Geraud-Pouey,Francis; Chirinos,Dorys T; Morales,Francisco; Herrera,Emilio; Fernández,Carlos; Martínez,Ana K. |
| The biological transmission of Tomato Venezuela virus (ToVEV) by biotype B of the whitefly species Bemisia tabaci (Gennadius) increased (21.7-95.0%), and the time for symptom expression decreased (16-12.6 days) as the number of viruliferous whiteflies allowed access for inoculation to susceptible tomato plants increased from 1 to 20 adults/plant. When acquired only as a nymph, adults of this biotype transmitted the virus to 88.3% of susceptible tomato plants, using 15 viruliferous individuals per test plant, corroborating the circulative nature of the transmission. Disease incidence further increased (up to 100%) when the individuals were allowed to feed again on a virusinfected plant as adults. Leaf area, plant height and dry matter were significantly... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Begomovirus; Geminiviridae; Tobacco whitefly. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2010000200019 |
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| Sepúlveda R.,Paulina; Morales,Francisco; Castaño,Mauricio. |
| En los últimos años se han observado plantas de frejol (Phaseolus vulgaris) con síntomas característicos de una enfermedad viral. Durante las temporadas 1993/1994 y 1995/1996 se realizaron prospecciones de campos de frejol en la zona productora (V a la VIII Región) de Chile. Se colectaron un total de 173 muestras de plantas afectadas por diferentes síntomas de posible etiología viral. Las plantas fueron sometidas a la prueba de ELISA con un antisuero para el Virus del Mosaico de la Alfalfa (AMV). Se determinó que era el AMV, el cual estaba distribuido en el área productora de frejol de Chile, pero con una frecuencia de detección relativamente baja, del 2 y 4% respectivamente, para las temporadas mencionadas. El procedimiento descrito junto con la... |
| Tipo: Journal article |
Palavras-chave: AMV; Aislamiento de virus; ELISA. |
| Ano: 2001 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0365-28072001000300012 |
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| Costoya,Alberto; Morales,Francisco; Borda,Paula; Vargas,Renato; Fuhrer,Juan; Salgado,Nicole; Cárdenas,Hugo; Velasquez,Luis. |
| BACKGROUND: The role of mycoplasmas on the development and sequelae of pelvic inflammatory disease remains controversial. The objective of the present study is to correlate directly the presence of Mycoplasmateceae through polimerase chain reaction (PCR) determinations in cervix and Fallopian tubes of infertile patients with tubo-peritoneal factor diagnosed through laparoscopy. METHODS: Thirty patients with tubo-peritoneal infertility and 30 normal fertile patients were included in the study; cervical samples and tubal flushings were obtained during laparoscopy. PCR determinations for the detection of genetic material of Mycoplasma genitalium, Mycoplasma hominis, Ureaplasma urealiticum, Neisseria gonorrhoeae, Chlamydia trachomatis, Trichomonas vaginalis in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mycoplasma; Mycoplasmateceae; Fallopian tubes; Tuboperitoneal infertility; Infections transmitted sexually. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702012000300010 |
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