Los estudios de nanolitografía con doble tinta y pluma de inmersión aclaran el transporte molecular

Jennifer R Hampton1, Arrelaine A Dameron, Paul S Weiss

  • 1Departments of Chemistry and Physics, The Pennsylvania State University, University Park, Pennsylvania 16802-6300, USA.

Resumen

El transporte de tinta de nanolitografía dip-pen depende de la hidrofobidad. El patrón del ácido 16-mercaptohexadecanoico (MHDA) y el 1-octadecanetiol (ODT) reveló cómo las interacciones de la tinta influyen en la deposición y la formación de patrones en sustratos de oro.

Videos de Conceptos Relacionados

The Significance of Membrane Transport01:44

The Significance of Membrane Transport

The transport of solutes across the cell membrane is essential for metabolic processes, like maintaining cell size and volume, generating the action potential, exchanging nutrients and gases, etc. Membrane transport can be either passive or active. It can be simple diffusion, facilitated, or mediated transport aided by transport proteins such as transporters and channels.
Transporters facilitate either an active or passive movement of solutes. They can allow a single-molecule transport down its...
The Movement of Organelles and Vesicles01:43

The Movement of Organelles and Vesicles

In eukaryotic cells,  cytoskeletal filaments such as actin, microtubules, and intermediate filaments form a mesh-like cytoskeletal network. These filaments serve as tracks for transporting cellular cargo. Specialized motor proteins use the chemical energy stored in adenosine triphosphate (ATP) for this transport. During interphase, microtubules are polarized, with the plus-end towards the cell periphery and the minus-end towards the cell center. Two microtubule-associated motor proteins,...
Directionality of Nuclear Transport01:42

Directionality of Nuclear Transport

Ras-related nuclear protein or Ran is a small G protein that cycles between its GTP and GDP bound states. Ran specific regulators, a Ran GTPase Activating Protein or RanGAP present in the cytosol and a Ran guanine nucleotide exchange factor or RanGEF present inside the nucleus regulate GTP/GDP exchange. A high concentration of GTP inside the cells, in addition to this asymmetric distribution of  Ran-specific regulators, leads to a higher RanGTP concentration inside the nucleus. This...