Vesicle Formation from an Amphiphilic Porphyrin Derivative at the Air–Water Interface |
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Authors: | Amrita Ghosh Sipra Choudhury Dr. Amitava Das Dr. |
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Affiliation: | 1. Analytical Science Discipline, Central Salt & Marine Chemicals Research Institute, Bhavnagar 364002, Gujarat (India), Fax: (+91)?278‐2567562;2. Chemistry Division, Bhabha Atomic Research Center, Trombay, Mumbai 400085 (India) |
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Abstract: | A tetraphenyl porphyrin derivative with two C16 alkyl chains covalently bound to each of the four peripheral phenyl rings through ether linkages formed multilayer clusters or vesicles at the air–water surface. More interestingly, spherical vesicles were also formed when deposited on appropriate solid surfaces, and these vesicles were stable even in dry conditions. Various microscopic images of the cast film deposited on a mica surface confirmed closed‐ended nanotube/nanorod‐type formation with necking and bulging. These narrow tubes are proposed to be intermediates for the formation of vesicles by fission at either side of the bulge. Such vesicular formation is not common when either cast or Langmuir–Blodgett films were deposited on a solid surface. |
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Keywords: | aggregation Langmuir– Blodgett films nanostructures porphyrinoids vesicles |
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