Nanoshells(NS):
üThese are another recent invention.NS are miniscule beads coated with gold.
üThe most useful nanoshells are those that absorb near infrared light that can easily penetrate
Several centimeters in human tissuses.
üAbsorption of light by nanoshells creates an intense heat that is lethal to cells.
üIn laboratory cultures the heal generated by the light-absorbing nanoshells has successfully
Killed tumor cells while leaving neighboring cells intact.
Liposomes:
üLiposomes are self-assembling spherical closed colloidal structures composed of lipid bilayers
That surround a central aqueous space.
üLiposome based formulations of several anticancer agents have been approved for the
Treatment of metastatic breast cancer and Kaposi’s sarcoma.
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