Now showing items 1226-1245 of 2801

    • Riveros, Ana; Dadlani, Komal; Salas, Edison; Caballero, Leonardo; Melo, Francisco; Kogan Bocian, Marcelo (American Scientific Publishers, 2013)
      There has been an increase in the research towards the use of nanoparticles as a promising tool for nanomedicine, from imagenology, drug and gene delivery, to phototherapy. Little is known regarding the interaction between ...
    • Araya, Eyleen; Olmedo, Ivonne; Bastus, Neus G.; Guerrero, Simón; Puntes, Víctor F.; Giralt, Ernest; Kogan Bocian, Marcelo (SPRINGER, 2008-11)
      Peptide-Gold nanoparticles selectively attached to beta-amyloid protein (A beta) amyloidogenic aggregates were irradiated with microwave. This treatment produces dramatic effects on the A beta aggregates, inhibiting both ...
    • Pérez Ortiz, Magdalena; Zapata Urzua, Claudio; Acosta, Gerardo A.; Álvarez Lueje, Alejandro; Albericio, Fernando; Kogan Bocian, Marcelo (Elsevier, 2017)
      In this work, the potential application of gold nanoparticles for GLP-1 analogues delivery was studied. For this purpose, the original sequence of the incretin GLP-1 was slightly modified in the C-terminal region by adding ...
    • Guerrero, Ariel R.; Hassan, Natalia; Escobar, Carlos A.; Albericio, Fernando; Kogan Bocian, Marcelo; Araya, Eyleen (Future Medicine Ltd., 2014)
      © 2014 Future Medicine Ltd. In this article, we describe how nanoparticles work in photothermally triggered drug delivery, starting with a description of the plasmon resonance and the photothermal effect, and how this is ...
    • Bastus, Neus G.; Kogan Bocian, Marcelo; Amigo, Roger; Grillo-Bosch, Dolors; Araya, Eyleen; Turiel, Antonio; Labarta, Amilcar; Giralt, Ernest; Puntes, Victor F. (2007)
      Nanoparticles can be made to respond resonantly to a time-varying electromagnetic field with advantageous results related to the transfer of energy from the exciting field to the nanoparticles. The surface of each particle ...
    • Sierpe, Rodrigo; Lang, Erika; Jara, Paul; Guerrero, Ariel; Chornik, Boris; Kogan Bocian, Marcelo; Yutronic Sáez, Nicolás (American Chemical Society, 2015)
      We report the synthesis of a 1:1 beta-cydodextrin-phenylethylamine (beta CD-PhEA) inclusion complex (IC) and the adhesion of gold nanoparticles (AuNPs) onto micro crystals of this complex, which forms a ternary system. The ...
    • Jara Guajardo, Pedro; Cabrera, Pablo; Celis, Freddy; Soler Jauma, Mónica; Berlanga Mora, Isadora; Parra Muñoz, Nicole; Acosta, Gerardo; Albericio, Fernando; Guzmán, Fanny; Campos, Marcelo; Álvarez, Alejandra; Morales Zavala, Francisco; Kogan, Marcelo J. (MDPI, 2020)
      The early detection of the amyloid beta peptide aggregates involved in Alzheimer's disease is crucial to test new potential treatments. In this research, we improved the detection of amyloid beta peptide aggregates in vitro ...
    • Asela, I.; Noyong, M.; Simon, U.; Andrades Lagos, Juan Andrés; Campanini Salinas, J.; Vásquez Velásquez, David; Kogan Bocian, Marcelo; Yutronic Sáez, Nicolás; Sierpe, R. (Public Library Science, 2017)
      While 2-amino-4-(4-chlorophenyl)thiazole (AT) drug and thiazole derivatives have several biological applications, these compounds present some drawbacks, such as low aqueous solubility and instability. A new complex of ...
    • Pedreschi, Franco; Bunger Timmermann, Andrea; Skurtys, Olivier; Allen, Paula; Rojas, Ximena (2012)
      Potato chips were classified in quality categories according to their color after frying at oil temperatures (120, 140, 160, and 180 ± 1 °C) and undergoing some pre-treatments (control or unblanching, blanching, and blanching ...
    • Almada, M.; Ruiz, E. D.; Ibarra Hurtado, J.; Hassan, N.; Kogan Bocian, Marcelo; Cadena Nava, R. D.; Valdés, M. A.; Juarez, J. (Amer Scientific, 2016)
      A systematic study of the effect of ascorbic acid concentration on the growth kinetics of gold nanorods under pH acidic conditions was done. We employed the seed-mediated approach at pH 1.25 using different ascorbic acid/Au+3 ...
    • Bravo Rodríguez, Denisse; Silva Valenzuela, Cecilia Alejandra; Carter Jaña, Javier Antonio; Hoare Teuche, Anilei Paz; Álvarez Armijo, Sergio Aníbal; Blondel, Carlos; Zaldívar San Román, María Mercedes; Valvano, Miguel A.; Contreras, Inés (SOC GENERAL MICROBIOLOGYJournal Of Medical Microbiology, vol. 57 Issue 8 p. 938-946 AUG 2008, 2008-08)
      The amount of lipopolysaccharide (LPS) O antigen (OAg) and its chain length distribution are important factors that protect bacteria from serum complement. Salmonella enterica serovar Typhi produces LPS with long chain ...
    • Sapag Muñoz de la Peña, Amalia; Irarrázaval Aguilera, Thergiorg; Lobos González, Lorena; Muñoz Brauning, Carlos; Quintanilla González, María Elena; Tampier de Jong, Lutske (Nature Publishing Group, 2016)
      Ribozyme genes were designed to reduce voluntary alcohol drinking in a rat model of alcohol dependence. Acetaldehyde generated from alcohol in the liver is metabolized by the mitochondrial aldehyde dehydrogenase (ALDH2) ...
    • Cancino Rivera, Patricio Antonio; Astudillo, Luis; Rovirosa, Juana; San Martín Barrientos, Aurelio (1987)
    • Zapata Urzúa, Claudio; Pérez Ortiz, Magdalena; Acosta, Gerardo A.; Mendoza, Joan; Yedra, Lluis; Estradé, Sonia; Álvarez Lueje, Alejandro; Núñez Vergara, Luis; Albericio, Fernando; Lavilla, Rodolfo; Kogan Bocian, Marcelo (Elsevier, 2015)
      Anisotropic and branched gold nanoparticles have great potential in optical, chemical and biomedical applications. However their syntheses involve multi-step protocols and the use of cytotoxic agents. Here, we report a ...
    • Yañez Valdés, María Francisca (2014)
      We present a unified approach to the study of Radon transforms related to symmetric groups and to general linear groups GLn(q), regarded as q−analogues of the former. In both cases, we define a sequence of generalized ...
    • Toledo, Carla; Enríquez, Pedro; Garrido, Mariano; Fernández-Band, Beatríz; Richter Duk, Pablo (TAYLOR & FRANCIS INC, 2010)
      A headspace-mass spectrometry with alternative chromatographic separation using a column switching system was developed for the screening and confirmation of BTEX and styrene in comestible oils. According to the position ...
    • García, Vivian; Uribe, Elsa; Vega Gálvez, Antonio; Delporte Vergara, Carla; Valenzuela Barra, Gabriela; López, Jéssica; Pasten, Alexis (Sociedad Chilena de Nutrición, 2020)
      The aim of this study was to evaluate the antioxidant, antidiabetic, anti-inflammatory and antimicrobial activities of three edible seaweed extracts from Chilean coasts: Pyropia orbicularis, Ulva spp, and Durvillaea ...
    • Riedel, Clement; Gabizon, Ronen; Wilson Moya, Christian; Hamadani, Kambiz; Tsekouras, Konstantinos; Marqusee, Susan; Presse, Steve; Bustamante, Carlos (Macmillan, 2015)
      Recent studies have shown that the diffusivity of enzymes increases in a substrate-dependent manner during catalysis1,2. Although this observation has been reported and characterized for several different systems3–10, ...
    • Schalscha B., Eduardo; Ahumada Torres, Aída Inés de Lourdes (PERGAMON-ELSEVIER SCIENCE LTD, 1998)
      Industrial and domestic waste waters in Chile are discharged without previous treatment into rivers and other inland waters which are used to irrigate agricultural lands. The present study reports on results obtained when ...
    • Valenzuela, Manuel A.; Canales, Jimena; Corvalán, Alejandro H.; Quest, Andrew F. G. (Baishideng Publishing Group Inc., 2015)
      The sequence of events associated with the development of gastric cancer has been described as "the gastric precancerous cascade". This cascade is a dynamic process that includes lesions, such as atrophic gastritis, ...