التفاصيل البيبلوغرافية
| العنوان: |
PH-switchable interaction of a carboxybetaine ester-based SAM with DNA and gold nanoparticles |
| المؤلفون: |
Filip, Jaroslav, Popelka, Anton, Bertók, Tomáš, Holazová, Alena, Osička, Josef, Kollár, Jozef, Ilčíková, Markéta, Tkáč, Ján, Kasák, Peter |
| المصدر: |
Langmuir |
| بيانات النشر: |
American Chemical Society |
| سنة النشر: |
2017 |
| المجموعة: |
Tomas Bata University Zlin: TBU publications / Univerzita Tomáše Bati ve Zlíně |
| الوصف: |
We describe a self-assembled monolayer (SAM) on a gold surface with a carboxybetaine ester functionality to control the interaction between DNA and gold nanoparticles via pH. The negatively charged phosphate backbone of DNA interacts with and adsorbs to the positively charged carboxybetaine esters on the SAM. DNA release can be achieved by the hydrolysis of carboxybetaine ester (CBE) to a zwitterionic carboxybetaine state. Furthermore, the adsorption of negatively charged citrate-capped gold nanoparticles to a SAM-modified plain gold surface can be controlled by the pH. The SAM based on carboxybetaine ester allows for the homogeneous adsorption of particles, whereas the SAM after hydrolysis at high pH repels AuNP adsorption. The antifouling surface properties of the surface modified with carboxybetaine were investigated with protein samples. © 2017 American Chemical Society. ; NPRP from Qatar National Research Fund [NPRP-6-381-1-078] |
| نوع الوثيقة: |
article in journal/newspaper |
| اللغة: |
English |
| Relation: |
Langmuir; http://publikace.k.utb.cz/handle/10563/1007211 |
| الاتاحة: |
http://publikace.k.utb.cz/handle/10563/1007211 |
| رقم الانضمام: |
edsbas.C36F69C5 |
| قاعدة البيانات: |
BASE |