nanospheres การใช้

• Another example of current nanobiotechnological research involves nanospheres coated with fluorescent polymers.
• For example, radiolabeled polyethylene glycol coated hexadecylcyanoacrylate nanospheres targeted and accumulated in a rat gliosarcoma.
• As enamel is secreted, some mineralisation occurs by Ca2 + deposition between nanospheres of amelogenins forming crystallites.
• The shortcoming of this method is the formation of gold nanospheres, which requires non-trivial separations and cleanings.
• However, this method is not yet ready for clinical trials, due to the accumulation of the nanospheres in surrounding healthy tissue.
• The ultrasonic route allows to produce nano-crystalline hydroxyapatite as well as modified particles, e . g . core-shell nanospheres, and composites.
• He made significant contribution to the field of lipid bilayer membranes and liposomes, biodegradable polymers, tissue engineering, nanospheres ( magnetic / fluorescent ) and drug delivery.
• An example of a nanopolymer is silicon nanospheres which show quite different characteristics; their size is 40 100 nm and they are much harder than silicon, their hardness being between that of sapphire and diamond.
• Three different structures can then be obtained from this process; nanoparticles, nanocapsules ( in which the drug is encapsulated and surrounded by the polymer matrix ), and nanospheres ( in which the drug is dispersed throughout the polymeric matrix in a spherical form ).
• Hollow silica nanospheres have been produced hydrothermally from a tetraethoxysilane-based gel mixture in a Teflon-lined autoclave at 100 癈 within 3 days . Subsequent calcination at 550 癈 for 5 hours removed the organic components from the spheres and created single holes ( mostly ) in them, yielding spherical nanobottles.
• Multiwall nanotubes with a diameter of 80 300 nm, made of dipeptides from the diphenylalanine motif of Alzheimer s ?-amyloid peptide is made by this method ( If a thiol is introduced into the diphenylalanine then nano-spheres can be formed instead; nanospheres of 10 100 nm diameter from a diphenylgalcine peptide can also be made this way.