Direkt zum Inhalt springen
   

Closed Projects

About

This project has explored the use of diamond-based sensors for biosensing applications. Diamond thin films offer an attractive platform for biosensing and bioelectronic applications, due to a unique set of physical, chemical, and electrochemical properties. The focus of this project has been i) the development of novel method for the functionalization of diamond surfaces, and ii) the development of highly sensitive diamond-based transducing electronic devices. Novel methods for introducing functional groups onto diamond surfaces have been developed based on self-assembled monolayers (SAMs) and polymer brushes. SAMs were shown to be suitable for the preparation of monolayers of proteins on diamond surfaces, whereas polymers brushes were shown to be effective for achieving a much higher loading of proteins. Polymer brushes were tailored in order to provide several functionalities, namely docking sites for protein immobilization and redox active groups to enhance charge transport along the insulating polymers. Several spectroscopy techniques confirmed the high loading of proteins on the polymer brush, as well as the effective electron charge transfer over large distances in the redox-functional polymers. The influence of the material properties, as well as the impact of the surface modification on the electron transfer across the diamond/protein and diamond/electrolyte interface has been the focus of this project. Arrays of diamond microelectrodes, as well as arrays of diamond field effect transistors have been developed during the time span of the project. Combining our functionalization efforts with the diamond sensors, we have demonstrated enzyme-modified amperometric diamond biosensors for the detection of H2O2, a molecule involved in neurotransmission regulation. In the last stage, the project has also address the potential use of graphene-related materials for sensing applications.       

The project has exploited the interdisciplinary expertise brought into the IGSSE team by the group of Prof. R. Jordan (now Professur für Makromolekulare Chemie, TU Dresden), and the group of Dr. J.A. Garrido (Walter Schottky Institut, E25, TU München). During the time span of the project, the largest part of the work has been carried out by the doctoral candidates Ms. Naima A. Hutter (Chemistry Department) and Mr. Andreas Reitinger (Physics Department).

 

 

01-01-1970
14.02.17

Registration now open: IGSSE Forum 2017

29-31 May 2017, TUM Science and Study Center Raitenhaslach, Burghausen

25.04.17

EuroTech postdoc workshop: Success in academia?

20-22 September 2017, Technical University of Denmark, Lynby Campus

18.04.17

Project team ROLITOS in a German documentary

10 May 2017, 11.30 pm Suedwestrundfunk (TV)

30 May 2017, 10.30 pm Bayerischer Rundfunk (TV)

11.04.17

Apply now: McKinsey 'Forschergeist' symposium

9-11 June 2017, Berlin

For doctoral researchers and postdocs!

10.04.17

Register now: ICMSB 2017

26-28 July 2017, TUM Study and Science Center, Raitenhaslach

14.02.17

Registration now open: IGSSE Forum 2017

29-31 May 2017, TUM Science and Study Center Raitenhaslach, Burghausen

05.06.16

10th IGSSE Forum

Smart cooperation - science and technology in, with and for society

15.12.15

The Science of Cooking

Doctoral Candidates explore the Secrets of a great Dinner

26.11.15

ATUMS@IGSSE

Having heard of a great Canadian Kick-Off Meeting, everyone at IGSSE was thrilled to welcome the...

20.11.15

Breakfast at IGSSE´s

Meet the IGSSE team every other month! All the things IGSSE members wanted to asked but never dared...

13.10.15

Save the Date: Canadian ATUMS Speaker on "Global Science- Global Career"

26. November 2015, 6-8 pm, IAS Faculty Club, Garching Campus

20 < lib.tabbedcontent
May - 2017
Sun Mon Tue Wed Thu Fri Sat
  02 03 04 05 06
07 08 09
10
11 12 13
14 15 16
17
18
19
20
21 22
23
24 25 26 27
28
29
30 31  
Wednesday, 10. May 2017
Project team ROLITOS in a German documentary
10 May 2017, 11.30 pm Suedwestrundfunk (TV) 30 May 2017, 10.30 pm Bayerischer Rundfunk (TV)
Wednesday, 17. May 2017
Podiumsdiskussion: Frauenförderung - Quo vadis?
17. Mai 2017, 14- 16 Uhr, Hochschule Weihenstephan-Triesdorf, Weidenbach
Friday, 19. May 2017
Tuesday, 23. May 2017
Monday, 29. May 2017
Registration now open: IGSSE Forum 2017
29-31 May 2017, TUM Science and Study Center Raitenhaslach, Burghausen