Cell Surface Collection

Intestinal brush border, TEM
Intestinal brush border. Transmission electron micrograph (TEM) of intestinal absorptive cells sectioned horizontally at their apex to show the surface microvilli (round)

Cell infected with HIV, SEM C014 / 0581
Cell infected with HIV. Coloured scanning electron micrograph (SEM) of HIV particles (round) budding from the membrane of a host cell

Cell infected with HIV, SEM C014 / 0580
Cell infected with HIV. Coloured scanning electron micrograph (SEM) of HIV particles (round) budding from the membrane of a host cell

Cell infected with HIV, SEM C014 / 0579
Cell infected with HIV. Coloured scanning electron micrograph (SEM) of HIV particles (round) budding from the membrane of a host cell

Cell infected with HIV, SEM C017 / 8338
Cell infected with HIV. Coloured scanning electron micrograph (SEM) of HIV particles (orange) budding from the membrane of a host cell

Cell infected with HIV, SEM C017 / 8339
Cell infected with HIV. Coloured scanning electron micrograph (SEM) of HIV particles (orange) budding from the membrane of a host cell

Cell infected with HIV, SEM C017 / 8337
Cell infected with HIV. Coloured scanning electron micrograph (SEM) of HIV particles (yellow) budding from the membrane of a host cell

Cell infected with HIV, SEM C017 / 8336
Cell infected with HIV. Coloured scanning electron micrograph (SEM) of HIV particles (pink) budding from the membrane of a host cell

Quantum dot probe, artwork
Quantum dot probe. Computer artwork of a quantum dot, a nanocrystal (InAs crystal, orange) that can be used to probe the immune system

SEM of mutant blood cell surface infected with HIV
HIV infected white blood cell. Scanning electron micrograph (SEM) of the abnormal surface of a white blood cell infected with HIV virus that causes AIDS

Budding HIV particles, TEM
Budding HIV particles. Coloured transmission electron micrograph (TEM) of HIV particles (blue and yellow) budding from the membrane of the host cell (orange)

Shigella bacteria, SEM
Shigella bacteria. Scanning electron micrograph (SEM) of Shigella sp. Bacteria (red) on the surface of a cell. Shigella sp

Cell infected with HIV, SEM
Cell infected with HIV. Coloured scanning electron micrograph (SEM) of HIV particles (yellow) budding from the membrane of a host cell (red)

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The cell surface is a fascinating and complex structure that plays a crucial role in various biological processes. One intriguing example of this is the intestinal brush border, which consists of microvilli projecting from the surface of epithelial cells lining the small intestine. These finger-like projections greatly increase the surface area available for nutrient absorption. In studying the cell surface, advanced imaging techniques such as transmission electron microscopy (TEM) have provided valuable insights. For instance, TEM images reveal the intricate details of a cell infected with HIV. SEM images labeled C014 / 0581, C014 / 0580, C014 / 0579, C017 / 8338, C017 / 8339, C017 / 8337, and C017 / 8336 showcase different views of these infected cells under high magnification. The virus hijacks host cells by binding to specific receptors on their surfaces and subsequently replicating within them. Another interesting aspect captured by TEM is the presence of budding HIV particles on mutant blood cell surfaces. These viral particles are seen emerging from infected cells as they complete their life cycle and prepare to infect new targets. Furthermore, quantum dot probes have been utilized to study the dynamics of molecules on the cell surface through artwork representations. This innovative technique allows scientists to track specific proteins or other biomolecules in real-time. Understanding how viruses interact with and manipulate cellular surfaces is essential for developing effective treatments against diseases like HIV/AIDS. By unraveling these intricate mechanisms at both structural and molecular levels using techniques like TEM and SEM, researchers continue to make significant strides towards combating viral infections and improving human health overall.