Control of Submillimeter Phase
Transition by Collective Photothermal Effect
Yushi Nishimura
Keisuke Nishida
Yojiro Yamamoto
Syoji Ito
Shiho Tokonami
Takuya Iida
10.1021/jp506405w.s006
https://acs.figshare.com/articles/media/Control_of_Submillimeter_Phase_Transition_by_Collective_Photothermal_Effect/2264878
Local
molecular states and biological materials in small spaces ranging
from the microscale to nanoscale can be modulated for medical and
biological applications using the photothermal effect (PTE). However,
there have been only a few reports on exploiting the collective phenomena
of localized surface plasmons (LSPs) to increase the amount of light-induced
heat for the control of material states and the generation of macroscopic
assembled structures. Here, we clarify that microbeads covered with
a vast number of Ag nanoparticles can induce a large PTE and generate
a submillimeter bubble within several tens of seconds under the synergetic
effect of the light-induced force (LIF) and photothermal convection
enhanced by collective phenomena of LSPs. Control of the phase transition
induced by such a “collective photothermal effect” enables
rapid assembling of macroscopic structures consisting of nanomaterials,
which would be used for detection of a small amount of proteins based
on light-induced heat coagulation.
2014-08-14 00:00:00
synergetic effect
Collective Photothermal EffectLocal
phenomena
photothermal convection
submillimeter bubble
material states
macroscopic structures
phase transition
PTE
Ag nanoparticles
LSP
surface plasmons
LIF
Submillimeter Phase Transition
photothermal effect