Ultrafast Vibrational Energy Transfer from Photoexcited Carbon Nanotubes to Proteins
Carbon nanotube (CNT) and protein complexes are one of the most important nanomaterials in physical and biological fields, especially for building biomedical systems based on their unique electronic and optical properties. However, there is little knowledge about ultrafast vibrational phenomena and...
Main Authors: | , , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
EDP Sciences
2019-01-01
|
Series: | EPJ Web of Conferences |
Online Access: | https://www.epj-conferences.org/articles/epjconf/pdf/2019/10/epjconf_up2019_05009.pdf |
id |
doaj-bbb80b0af1264c3db6ba16e821f883f3 |
---|---|
record_format |
Article |
spelling |
doaj-bbb80b0af1264c3db6ba16e821f883f32021-08-02T04:01:03ZengEDP SciencesEPJ Web of Conferences2100-014X2019-01-012050500910.1051/epjconf/201920505009epjconf_up2019_05009Ultrafast Vibrational Energy Transfer from Photoexcited Carbon Nanotubes to ProteinsNakayama Tomohito0Yoshizawa Shunsuke1Hirano Atsushi2Tanaka Takeshi3Shiraki Kentaro4Hase Muneaki5Division of Applied Physics, Faculty of Pure and Applied Sciences, University of TsukubaDivision of Applied Physics, Faculty of Pure and Applied Sciences, University of TsukubaNanomaterials Research Institute, National Institute of Advanced Industrial Science and Technology (AIST)Nanomaterials Research Institute, National Institute of Advanced Industrial Science and Technology (AIST)Division of Applied Physics, Faculty of Pure and Applied Sciences, University of TsukubaDivision of Applied Physics, Faculty of Pure and Applied Sciences, University of TsukubaCarbon nanotube (CNT) and protein complexes are one of the most important nanomaterials in physical and biological fields, especially for building biomedical systems based on their unique electronic and optical properties. However, there is little knowledge about ultrafast vibrational phenomena and energy flow in CNT-protein complexes. Here, we study the ultrafast vibrational energy transfer (VET) from photoexcited carbon nanotubes to adsorbed materials, such as protein and surfactant, by observing relaxation dynamics of coherent radial breathing modes (RBMs) of CNT. As a result, we found the vibrational relaxation time of the RBMs depends on phonon density of states (PDOS) of adsorbed materials. Our findings are particularly useful for designing a highly efficient phonon energy flow system from photo-excited CNT to biomaterials, and such vibrational energy transfer can be controlled by the PDOS originated from the structure of coupled biomaterials.https://www.epj-conferences.org/articles/epjconf/pdf/2019/10/epjconf_up2019_05009.pdf |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Nakayama Tomohito Yoshizawa Shunsuke Hirano Atsushi Tanaka Takeshi Shiraki Kentaro Hase Muneaki |
spellingShingle |
Nakayama Tomohito Yoshizawa Shunsuke Hirano Atsushi Tanaka Takeshi Shiraki Kentaro Hase Muneaki Ultrafast Vibrational Energy Transfer from Photoexcited Carbon Nanotubes to Proteins EPJ Web of Conferences |
author_facet |
Nakayama Tomohito Yoshizawa Shunsuke Hirano Atsushi Tanaka Takeshi Shiraki Kentaro Hase Muneaki |
author_sort |
Nakayama Tomohito |
title |
Ultrafast Vibrational Energy Transfer from Photoexcited Carbon Nanotubes to Proteins |
title_short |
Ultrafast Vibrational Energy Transfer from Photoexcited Carbon Nanotubes to Proteins |
title_full |
Ultrafast Vibrational Energy Transfer from Photoexcited Carbon Nanotubes to Proteins |
title_fullStr |
Ultrafast Vibrational Energy Transfer from Photoexcited Carbon Nanotubes to Proteins |
title_full_unstemmed |
Ultrafast Vibrational Energy Transfer from Photoexcited Carbon Nanotubes to Proteins |
title_sort |
ultrafast vibrational energy transfer from photoexcited carbon nanotubes to proteins |
publisher |
EDP Sciences |
series |
EPJ Web of Conferences |
issn |
2100-014X |
publishDate |
2019-01-01 |
description |
Carbon nanotube (CNT) and protein complexes are one of the most important nanomaterials in physical and biological fields, especially for building biomedical systems based on their unique electronic and optical properties. However, there is little knowledge about ultrafast vibrational phenomena and energy flow in CNT-protein complexes. Here, we study the ultrafast vibrational energy transfer (VET) from photoexcited carbon nanotubes to adsorbed materials, such as protein and surfactant, by observing relaxation dynamics of coherent radial breathing modes (RBMs) of CNT. As a result, we found the vibrational relaxation time of the RBMs depends on phonon density of states (PDOS) of adsorbed materials. Our findings are particularly useful for designing a highly efficient phonon energy flow system from photo-excited CNT to biomaterials, and such vibrational energy transfer can be controlled by the PDOS originated from the structure of coupled biomaterials. |
url |
https://www.epj-conferences.org/articles/epjconf/pdf/2019/10/epjconf_up2019_05009.pdf |
work_keys_str_mv |
AT nakayamatomohito ultrafastvibrationalenergytransferfromphotoexcitedcarbonnanotubestoproteins AT yoshizawashunsuke ultrafastvibrationalenergytransferfromphotoexcitedcarbonnanotubestoproteins AT hiranoatsushi ultrafastvibrationalenergytransferfromphotoexcitedcarbonnanotubestoproteins AT tanakatakeshi ultrafastvibrationalenergytransferfromphotoexcitedcarbonnanotubestoproteins AT shirakikentaro ultrafastvibrationalenergytransferfromphotoexcitedcarbonnanotubestoproteins AT hasemuneaki ultrafastvibrationalenergytransferfromphotoexcitedcarbonnanotubestoproteins |
_version_ |
1721242952001388544 |