نتایج جستجو برای: nanosystem

تعداد نتایج: 440  

Journal: :Chinese Journal of Luminescence 2022

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Journal: :Nanoscale 2015
Chieh-Jui Tsou Chih-Hao Hsia Jia-Yin Chu Yann Hung Yi-Ping Chen Fan-Ching Chien Keng C Chou Peilin Chen Chung-Yuan Mou

Continuous and simultaneous 3D single-particle movement and local pH detection in HeLa cells were demonstrated for the first time by combining fluorescent mesoporous silica nanoparticles (FMSNs) and a single-particle tracking (SPT) technique with a precision of ∼10 nm. FMSNs, synthesized by the co-condensation of both pH-sensitive and reference dyes with a silica/surfactant source, allow long-t...

2004
S. Arcidiacono D. Poulikakos

The present work investigates the coalescence process of two gold nanoparticles for a host of initial temperatures and starting radii in vacuum with the help of molecular dynamics (MD) simulations. Diverse mechanisms of the first sintering stage, characterized by a growing neck region, were found. The results are compared with a phenomenological macroscopic model based on an energy balance and ...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2005
F Remacle J R Heath R D Levine

Conduction spectroscopy measures the current I through a nanosystem as a function of the voltage V between two electrodes. The differential conductance, dI/dV, has peaks that can be assigned to resonance conditions with different electronic levels of the system. Between these increments, the current has roughly constant plateaus. We discuss how measurements of the current vs. voltage can be use...

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