Doctoral Researchers

B1: Taufhik Hossain Tonmoy

E-Mail: h.tonmoy@hzdr.de
Phone: +49 351 260 2437
Office: Helmholtz-Zentrum Dresden-Rossendorf (HZDR)
Building-801, Room-C136

My research interests include micro-/nanofabrication and the development of various sensing platforms for biomedical applications. In project B1, we investigate the introduction of bio-functionalized plasmonic nanoparticles on to field effect transistor (FET)-based sensors and explore the possibility of enhancing the signals. Such devices could become a game-changer in early diagnosis of diseases where ultra-low concentrations of biomarkers need to be detected.

Project Topic: Nanoparticles-based response amplification of nanobiosensors

Supervisors: Artur Erbe, Larysa Baraban, Andreas Fery

Early diagnosis of diseases is of utmost importance. For example, cancer patients have drastically worse outcomes when diagnosed at later stages. Furthermore, certain biomarkers require very sensitive devices to detect their ultra-low concentrations. Field Effect Transistor (FET)-based biosensors not only provide detection of ultra-low concentrations of analytes along with fast response, but furthermore add the possibility for miniaturization, thereby leading to portability.

We investigate the introduction of bio-functionalized plasmonic nanoparticles to FET-based sensors and explore the possibility of enhancing the signals and/or sensitivity of these devices. Once illuminated by light, excited plasmons contribute to the modification of the surface potential at the FET's channel and to the modulation of the conductance of the sensor via optical gating. We expect this phenomenon to enhance the signals obtained from a binding event.

Education
10/2019 - 07/2022

Master in Nanoelectronic Systems

TU Dresden

  • Thesis: Development and Integration of Sensors for Central Venous Catheters (CVCs)

 

Publications

Klinghammer, S., Tonmoy, T. H., Janićijević, Ž., Maitz, M. F., Balakin, S., Vicini, M., Riemenschneider, L., Panes-Ruiz, L.-A., Bockholt, R., Heubner, L., et al.
Hemocompatible Coatings of Catheters Equipped with Electrochemical Sensors for Real-Time Monitoring of Critical Parameters in the Blood.
ACS Applied Polymer Materials 2025, 7 (14), 9349-9362. https://doi.org/10.1021/acsapm.5c01708

Tonmoy, T. H.; Seçkin, S.; Hoffmann, M.; Çela, I.; Yi, G.; Alsadig, A.; Sarkar, S.; Rossner, C.; König, T. A. F.; Fery, A.; Baraban, L.,
Enhanced Refractive Index Sensitivity of Linearly Assembled Gold Nanoantennae for Biosensing Applications.
ChemRxiv 2025. https://doi.org/10.26434/chemrxiv-2025-8q6g8

Janićijević, Ž.; Huang, T.; Bojórquez, D. I. S.; Tonmoy, T. H.; Pané, S.; Makarov, D.; Baraban, L.
Design and Development of Transient Sensing Devices for Healthcare Applications.
Advanced Science 2024, 11 (20), 2307232. https://doi.org/10.1002/advs.202307232.

Janićijević, Ž., Nguyen-Le, T.-A., Alsadig, A., Cela, I., Zilenaite, R., Tonmoy, T. H., Kubeil, M., Bachmann, M., Baraban, L.,
Methods gold standard in clinic millifluidics multiplexed extended gate field-effect transistor biosensor with gold nanoantennae as signal amplifiers
Biosensors and Bioelectronics 2023, 241, 115701, https://doi.org/10.1016/j.bios.2023.115701