Video Experimental Relacionado
Updated: Jul 15, 2026

07:40
Gene Transfection toward Spheroid Cells on Micropatterned Culture Plates for Genetically-modified Cell Transplantation
Published on: July 31, 2015
Los nanogeles poliméricos producidos a través de la polimerización de microemulsión inversa como agentes potenciales
Karen McAllister1, Peter Sazani, Mirielle Adam
1Department of Chemistry, Campus Box 3290, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA.
Journal of the American Chemical Society
|December 19, 2002
Resumen
Los investigadores desarrollaron nanogeles biocompatibles para la entrega de genes y antisentido. Estos nanogels muestran potencial para una mayor absorción y estabilidad celular, ofreciendo una herramienta prometedora para terapias genéticas.
Área de la Ciencia:
- Ciencia de los Biomateriales Ciencia de los Biomateriales.
- Nanotecnología La nanotecnología es la nanotecnología.
- Biología Molecular Biología Molecular
Sus antecedentes:
- La entrega de genes y antisenso es crucial para las aplicaciones terapéuticas.
- El desarrollo de vectores de entrega eficientes y seguros sigue siendo un desafío.
- Los nanogeles poliméricos ofrecen potencial como portadores biocompatibles.
Objetivo del estudio:
- Para sintetizar y caracterizar los vectores poliméricos de nanogel para el gen celular y la entrega de antisense.
- Para evaluar las propiedades fisicoquímicas y la biocompatibilidad de los nanogels.
- Para evaluar la eficacia de los complejos de nanogel-ADN para la entrega de genes.
Principales métodos:
- La polimerización de microemulsión inversa para la síntesis de nanogel.
- Caracterización mediante RMN, dispersión de luz, TEM y AFM.
- Evaluación in vitro de la viabilidad celular, la absorción y la estabilidad compleja.
Principales resultados:
- Se han sintetizado con éxito nanogeles monodispersos no iónicos y catiónicos (40-200 nm).
- Los nanogels exhibieron una excelente estabilidad en medios acuosos y baja citotoxicidad.
- Los nanogeles catiónicos formaron complejos estables con los oligonucleótidos, mejorando la absorción celular.
Conclusiones:
- Los nanogels desarrollados son portadores biocompatibles prometedores para la entrega de genes y antisentido.
- La síntesis controlada permite propiedades de nanogel ajustables.
- Se justifica una investigación adicional para las aplicaciones in vivo.
Videos de Conceptos Relacionados
MicroRNAs
MicroRNA (miRNA) are short, regulatory RNA transcribed from introns—non-coding regions of a gene—or intergenic regions—stretches of DNA present between genes. Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA ends...
MicroRNAs
MicroRNA (miRNA) are short, regulatory RNA transcribed from introns (non-coding regions of a gene) or intergenic regions (stretches of DNA present between genes). Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself, forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA...
Micelles
Micelle formation is an intricate process that hinges on the properties of amphiphilic or amphipathic molecules and the conditions of the system in which they are found. Amphiphilic molecules, which have both hydrophilic (water-attracting) and hydrophobic (water-repelling) parts, play a critical role in this process.In aqueous environments, these molecules arrange themselves such that their hydrophilic heads are turned towards the water phase, while their hydrophobic tails are oriented away...
Microbial Corrosion
Microbiologically Influenced Corrosion (MIC) is a significant form of material degradation caused by the metabolic activities of microorganisms. This phenomenon poses substantial challenges across various industries, including oil and gas, maritime, and water treatment sectors.MIC occurs when microorganisms, such as bacteria, archaea, and fungi, colonize metal surfaces, forming biofilms that alter the local electrochemical environment. These biofilms can lead to the production of corrosive...
iChip
The cultivation of environmental microorganisms has long been hindered by the inability to replicate complex native conditions in vitro. The isolation chip (iChip) addresses this limitation by facilitating the growth of previously uncultivable microorganisms through in situ incubation. Designed for high-throughput microbial cultivation, the iChip comprises hundreds of microchambers, each capable of housing a single microbial cell. These microchambers are loaded with a mixture of molten agar and...

