Browsing by Subject "Gold nanoparticles"

Now showing items 1-13 of 13

    • Bioaccumulation and toxicity of gold nanoparticles after repeated administration in mice 
      Lasagna Reeves, C.; González Romero, D.; Barría, M. A.; Olmedo, I.; Clos, A.; Sadagopa Ramanujam, V. M.; Urayama, A.; Vergara, L.; Kogan Bocian, Marcelo; Soto, C. (ELSEVIER, 2010)
      Gold nanoparticles (GNPs) offer a great promise in biomedicine. Currently, there is no data available regarding the accumulation of nanoparticles in vivo after repeated administration. The purpose of the present study ...
    • Capping gold nanoparticles with modified chitosan polymers for biomedical applications 
      Mena, Juan F.; Neira Carrillo, Andrónico; Yazdani-Pedram Zobeiri, Mehrdad; Kogan Bocian, Marcelo (American Scientific Publishers, 2013)
      With the purpose of obtaining stable and non-toxic nanocomposites with potential biomedical applications we coated gold nanoparticles (AuNP) with chitosan (CHI) and CHI grafted with poly(Nisopropilacrylamide) (PNIPAAm) and ...
    • Electrochemical characterization and electrocatalytic application of gold nanoparticles synthesized with ... 
      Sierra Rosales, Paulina; Torres, Rodrigo; Sepulveda, Carlos; Kogan Bocian, Marcelo; Squella Serrano, Juan (Wiley, 2018)
      Gold nanoparticles (AuNPs) have unique properties, making them attractive for electronic and energy-conversion devices and as (electro)catalysts for electrochemical sensors. In addition to the size and shape of AuNPs, the ...
    • Enhanced cellular uptake of H-chain human ferritin containing gold nanoparticles 
      Moglia Fernández, Ítalo Arnoldo; Margarita, Santiago; Guerrero, Simón; Soler Jauma, Mónica; Olivera Nappa, Alvaro María; Kogan, Marcelo Javier (MDPI, 2021)
      Gold nanoparticles (AuNP) capped with biocompatible layers have functional optical, chemical, and biological properties as theranostic agents in biomedicine. The ferritin protein containing in situ synthesized AuNPs has ...
    • Gold nanoparticle based double‑labeling of melanoma extracellular vesicles to determine the specificity of ... 
      Lara, Pablo; Palma Florez, Sujey; Salas Huenuleo, Edison; Polakovicova, Iva; Guerrero, Simón; Lobos González, Lorena; Campos, América; Muñoz, Luis; Jorquera Cordero, Carla; Varas Godoy, Manuel; Cancino, Jorge; Arias, Eloísa; Villegas, Jaime; Cruz, Luis J.; Albericio, Fernando; Araya, Eyleen; Corvalán, Alejandro H.; Quest, Andrew F. G.; Kogan Bocian, Marcelo (BMC, 2020)
      Background Extracellular vesicles (EVs) have shown great potential for targeted therapy, as they have a natural ability to pass through biological barriers and, depending on their origin, can preferentially accumulate at ...
    • Gold nanoparticle-membrane interactions: Implications in biomedicine 
      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 ...
    • Gold nanoparticles as an efficient drug delivery system for GLP - 1 peptides 
      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 ...
    • Gold nanoparticles for selective and remote heating of β-amyloid protein aggregates 
      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 ...
    • Gold nanoparticles interacting with β-cyclodextrin-phenylethylamine inclusion complex: a ternary system for ... 
      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 ...
    • Intranasal administration of gold nanoparticles designed to target the central nervous system: Fabrication ... 
      Gallardo Toledo, Eduardo; Tapia Arellano, Andreas; Celis, Freddy; Sinai, Tomer; Campos, Marcelo; Kogan, Marcelo J.; Sintov, Amnon C. (Elsevier, 2020)
      The presence of the blood-brain barrier (BBB) limit gold nanoparticles (GNP) accumulation in central nervous system (CNS) after intravenous (IV) administration. The intranasal (IN) route has been suggested as a good strategy ...
    • New Hybrid Nanocomposites with Catalytic properties obtained by In situ preparation of gold nanoparticles ... 
      Ramírez, Oscar; Leal, Matías; Briones Olaran, Ximena Gabriela; Urzúa Acevedo, Marcela del Pilar; Bonardd, Sebastián; Saldías, César; Leiva, Angel (MDPI, 2022)
      In this work, we report the obtaining of new hybrid nanocomposites with catalytic activity formed by nanofibers of polymer blends and gold nanoparticles. The nanofibers were obtained by electrospinning blends of a poly ...
    • Self-assembled multilayers of polyethylenimine, DNA and gold nanoparticles. A study of electron transfer reaction 
      Ferreyra, Nancy; Bollo Dragnic, Soledad; Rivas, Gustavo (Elsevier, 2010)
      The present manuscript describes studies of the electron transfer kinetics at gold electrodes modified by electrostatic self-assemblies of polyethylenimine (PEI), DNA and gold nanoparticles (NP) by Scanning Electrochemical ...
    • The influence of size and chemical composition of silver and gold nanoparticles on in vivo toxicity with ... 
      Báez, Daniela F.; Gallardo Toledo, Eduardo Ignacio; Oyarzun, María Paz; Araya, Eyleen; Kogan, Marcelo Javier (Dovepress, 2021)
      The physicochemical and optical properties of silver nanoparticles (SNPs) and gold nanoparticles (GNPs) have allowed them to be employed for various biomedical applications, including delivery, therapy, imaging, and as ...