Twofold pH and temperature stimuli-responsive behaviour in block copolypeptide-decorated single wall carbon nanotubes.
Temperature- and pH-responsive dispersions of carbon nanotubes in water have been obtained by using di- and tri-block copolypeptides, in which the temperature responsive behaviour is provided by a poly(N-isopropylacrylamide) block, while the pH responsiveness is provided by two different polypeptides with an ampholytic behaviour, poly(L-glutamic acid) and poly(L-lysine). The molecular architectures of the block copolypeptides can be engineered to fine-tune the stimuli-responsive behaviour.
Li
Chaoxu
C
Food & Soft Materials Science, Institute of Food, Nutrition & Health, ETH Zurich, Schmelzbergstrasse 9, 8092 Zürich, Switzerland.
Adamcik
Jozef
J
Zhang
Afang
A
Mezzenga
Raffaele
R
D000178:Acrylamides / Q000737:chemistry; D000180:Acrylic Resins; D006863:Hydrogen-Ion Concentration; D015394:Molecular Structure; D037742:Nanotubes, Carbon / Q000737:chemistry*; D010316:Particle Size; D010455:Peptides / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry; D013696:Temperature; D014867:Water / Q000737:chemistry
D000178:Acrylamides; D000180:Acrylic Resins; D037742:Nanotubes, Carbon; D010455:Peptides; D011108:Polymers; D014867:Water; C052970:poly-N-isopropylacrylamide