التفاصيل البيبلوغرافية
| العنوان: |
Attachment of DNA-Wrapped Single-Walled Carbon Nanotubes (SWNTs) for a Micron-Sized Biosensor |
| المؤلفون: |
Kota Hirayama (11636458), Masaki Kitamura (561415), Nay San Lin (13216317), Minh Hieu Nguyen (14240313), Binh Duong Le (14240316), Anh Tuan Mai (14240319), Shigeki Mayama (14240322), Kazuo Umemura (801312) |
| سنة النشر: |
2022 |
| مصطلحات موضوعية: |
Biophysics, Medicine, Microbiology, Pharmacology, Biotechnology, Ecology, Immunology, Hematology, Virology, Environmental Sciences not elsewhere classified, Chemical Sciences not elsewhere classified, Physical Sciences not elsewhere classified, walled carbon nanotubes, various biosensors using, various biological applications, unique optical responses, many research groups, cultured isolated diatoms, sized redox sensor, sized nanoporous biosilica, sized biodevice based, sized biosensor, biodevice functions, swnt films, speed centrifugation, porous structures, infrared photoluminescence, gentle centrifugation, aqueous solutions |
| الوصف: |
We fabricated a micron-sized biodevice based on the near-infrared photoluminescence (PL) response of single-walled carbon nanotubes (SWNTs). Various biosensors using the unique optical responses of SWNTs have been proposed by many research groups. Most of these employed either colloidal suspensions of dispersed SWNTs or SWNT films on flat surfaces, such as electrodes. In this study, we attached DNA-wrapped SWNTs (DNA-SWNTs) to frustule (micron-sized nanoporous biosilica) surfaces, which were purified from cultured isolated diatoms. After the injection of an oxidant and a reductant, the SWNTs on the frustules showed prominent PL responses. This suggests that the biodevice functions as a micron-sized redox sensor. Frustules can be easily suspended in aqueous solutions because of their porous structures and can easily be collected as pellets by low-speed centrifugation. Thus, the removal of unbound SWNTs and the recovery of the fabricated DNA-SWNT frustules for reuse were achieved by gentle centrifugation. Our proposal for micron-sized SWNT biodevices would be helpful for various biological applications. |
| نوع الوثيقة: |
article in journal/newspaper |
| اللغة: |
unknown |
| العلاقة: |
https://figshare.com/articles/journal_contribution/Attachment_of_DNA-Wrapped_Single-Walled_Carbon_Nanotubes_SWNTs_for_a_Micron-Sized_Biosensor/21701586Test |
| DOI: |
10.1021/acsomega.2c06278.s001 |
| الإتاحة: |
https://doi.org/10.1021/acsomega.2c06278.s001Test |
| حقوق: |
CC BY-NC 4.0 |
| رقم الانضمام: |
edsbas.85BB93BA |
| قاعدة البيانات: |
BASE |
