Selected publications by subject

Full list can be found on Google Scholar

Choice architecture

Hrnjic E, Tomczak N, Machine learning and behavioral economics for personalized choice architecture. eprint arXiv:1907.02100 2019

In the news:
Opendatascience.com The Best Machine Learning Research of Summer 2019
ODSC Medium ML and Behavioral Economics for Personalized Choice Architecture
Interactive Architecture Lab Machined Surveillance
Wikipedia Comportamento da Máquina

 

Fintech and blockchain technologies opinion pieces

Hrnjic E, Tomczak N. Five Common Bitcoin Myths Demystified. The Straits Times, August 5, 2018
Hrnjic E, Tomczak N. Mind the Blockchain Knowledge Gap. The Straits Times, October 7, 2018
Hrnjic E, Tomczak N. How Small Firms Reap Benefits from Blockchain Switch. South China Morning Post, January 19, 2019
Hrnjic E, Tomczak N. How Can ICOs Reinvent Themselves? The Straits Times, January 27, 2019
Hrnjic E, Tomczak N. Centralised money in a decentralised world. The Business Times, May 2, 2019
Hrnjic E, Tomczak N. Can blockchain be a catalyst for a more inclusive world? South China Morning Post, May 18, 2019
Hrnjic E, Tomczak N. The transformative nature of blockchain-based smart contracts. The Business Times, June 4, 2019
Hrnjic E, Tomczak N. Challenges ahead for Facebook’s Libra. The Business Times, July 4, 2019
Hrnjic E, Tomczak N. Mata wang digital Libra berdepan cabaran. July 13, 2019
Hrnjic E, Tomczak N. Decentralised Finance in a centralised world. The Business Times, July 25, 2019
Hrnjic E, Tomczak N. PBOC keeps faith in digital currency. South China Morning Post, September 21, 2019
Hrnjic E, Tomczak N. Blockchain path to more inclusive world. Jakarta Post, October 4, 2019
Hrnjic E, Tomczak N. Beware of risk in Blockchain-based smart contracts. South China Morning Post, 16 November 2019

Scanning Probe Microscopy

Tomczak N, Kuan Eng Johnson Goh, Eds., Scanning Probe Microscopy, World Scientific 2010, Singapore. ISBN: 978-981-4324-76-2.

Hillborg H, Tomczak N, Olah A, Schönherr H, Vancso GJ, Nanoscale hydrophobic recovery: A chemical force microscopy study of UV/ozone – treated crosslinked poly(dimethylsiloxane). Langmuir, 20, 785-794, 2004.
Tomczak N. Vancso GJ, Elasticity of single poly(amido amine) dendrimers. Macromol. Rap. Commun., 28,1640-1644, 2007.
Tagit O, Tomczak N, Vancso GJ, Probing the morphology and nanoscale mechanics of single poly(N-isopropylacrylamide) microgels across the lower-critical-solution temperature by atomic force microscopy. Small, 4, 119-126, 2008.

Quantum dots

Tomczak N, Jańczewski D, Han MY, Vancso GJ, Surface engineering of Quantum Dots with designer ligands in Surface Design: Applications in Bioscience and Nanotechnology, Förch, R.; Schönherr, H.; Jenkins, A.T.A, Eds.; Wiley: 2009, ISBN: 978-3-527-40789-7.
Tomczak N*, Tagit O, Jańczewski D, Han MY, Vancso GJ, Enabling biomedical research with designer quantum dots in Nanotechnology inRegenerative Medicine, Springer Protocols, Methods in Molecular Biology, Navaro, M., Planell J. A., Eds; Humana Press, Springer: 2012, ISBN: 978-1-61779-387-5.

Tomczak N, Janczewski D, Han MY, Vancso GJ, Designer polymer-quantum dot architectures. Progr. Polym. Sci., 34 (5), 393-430, 2009.
Janczewski D, Tomczak N, Liu S, Han M-Y, Vancso GJ, Covalent assembly of functional inorganic nanoparticles by “click” chemistry in water. Chem. Commun., 46, 3253-3255, 2010.
Janczewski D, Tomczak N, Han MY, Vancso GJ, Facile synthesis of functionalized amphiphilic polymers as versatile functional coating platform for quantum dots. Nature Protocols, 6, 1546, 2011.
Tomczak N, Liu RR, Vancso GJ, Polymer-coated Quantum Dots. Nanoscale, 5, 12018, 2013.

Single molecule fluorescence

Vallée RAL, Tomczak N, Kuipers L, Vancso GJ, van Hulst NF, Single molecule lifetime fluctuations reveal segmental dynamics in polymers. Phys. Rev. Lett., 91(3), 038301-1, 2003.
Tomczak N, Vallée RAL, Dijk EMHP van, Garcia Parajo MF, Kuipers L, van Hulst NF, Vancso GJ, Probing polymers with single fluorescent molecule. Eur. Polym. J., 40, 1001, 2004.

Bioimaging probes

Li Y, Liu J, Liu B, Tomczak N, Highly emissive PEG-encapsulated conjugated polymer nanoparticles. Nanoscale, 4, 5694, 2012.
Li K, Qin W, Ding D, Tomczak N, Geng JL, Liu RR, Liu JZ, Zhang XH, Liu HW, Liu B, Tang BZ, Photostable fluorescent organic dots with aggregation-induced emission (AIE dots) for noninvasive long-term cell tracing. Scientific Reports, 3, Art No: 1150, 2013.
Jin GR, Mao D, Cai PQ, Liu RR, Tomczak N, Liu J, Chen XD, Kong DL, Ding D, Liu B, Li K, Conjugated Polymer Nanodots as Ultrastable Long-Term Trackers to Understand Mesenchymal Stem Cell Therapy in Skin Regeneration. Advanced Functional Materials, 25, 4263-4273, 2015.
Gao M, Hu QL, Feng GX, Tomczak N, Liu RR, Xing BG, Tang BZ, Liu B, A Multifunctional Probe with Aggregation-Induced Emission Characteristics for Selective Fluorescence Imaging and Photodynamic Killing of Bacteria Over Mammalian Cells. Advanced Healthcare Materials, 4, 659-663, 2015.
Feng G, Liu J, Liu R, Mao D, Tomczak N, Liu B Ultrasmall Conjugated Polymer Nanoparticles with High Specificity for Targeted Cancer Cell Imaging. Advanced Science, 1600407, 2016.

Bioinspired materials

Fu Z, Ochsner M, de Hoog HP, Tomczak N, Nallani M, Multicompartmentalized polymersomes for selective encapsulation of biomacromolecules. Chemical Communications, 47, 2862-2864, 2011.
De Hoog HP, Nallani M, Tomczak N, Self-assembled architectures with multiple aqueous compartments. Soft Matter, 8, 4552, 2012.
Siti W, de Hoog HPM, Fischer O, Shan WY, Tomczak N, Nallani M, Liedberg B, An intercompartmental enzymatic cascade in channel-equipped polymersome-in-polymersome architectures. Journal of Materials Chemistry B, 2, 2733, 2014.
Paramelle D, Peng T, Free P, Fernig DG, Lim S, Tomczak N, Specific internalization of gold nanoparticles into engineered porous cages via affinity binding. PLOS One, 11 (9), e0162848, 2016.
Sarker M, Tomczak N, Lim S, Protein Nanocage as a pH-Switchable Pickering Emulsifier. ACS Applied Materials & Interfaces, 9 (12), 11193-11201, 2017

Molecular electronics

Du W, Wang T, Chu HS, Wu L, Liu RR, Sun S, Phua WK, Wang L, Tomczak N, Nijhuis CA, On-chip molecular electronic plasmon sources based on self-assembled monolayer tunnel junctions. Nature Photonics, 10 (4), 247-280, 2016.
Du W, Han Y, Hu H, Chu HS, Annadata HV, Wang T, Tomczak N, Nijhuis CA, Directional Excitation of Surface Plasmon Polaritons via Molecular Through-Bond Tunneling across Double-Barrier Tunnel Junctions. Nano letters, 19 (7), 4634, 2019.
Wang T, Du W, Tomczak N, Wang Lejia, Nijhuis CA, In operando characterization and control over intermittent light emission from molecular tunnel junctions via molecular backbone rigidity, Advanced Science, 6, 1900390, 2019.

Surface engineering

Liu RR, Wong ST, Lau PZ, Tomczak N, Stretching and imaging of single DNA chains on a hydrophobic polymer surface made of amphiphilic alternating comb-copolymer. ACS Applied Materials and Interfaces, 6, 2476, 2014.
Liu RR, Lee YY, Chong KSL, Tomczak N, Transparent hydrophobic antimicrobial coatings by in-situ synthesis of Ag nanoparticles in a surface-grafted amphiphilic comb-copolymer. Advanced Materials Interfaces, 3, 1500448, 2016.
Daniel D, Chia AYT, Moh LCH, Liu R, Koh XQ, Zhang X, Tomczak N, Hydration lubrication of polyzwitterionic brushes leads to nearly friction-and adhesion-free droplet motion. Communications Physics, 2, article number 105, 2019.
Dan Daniel, Chee Leng Lay, Anqi Sng, Corryl Jing Jun Lee, Darren Chi Jin Neo, Xing Yi Ling, Nikodem Tomczak. Mapping micron-scale wetting properties of superhydrophobic surfaces. PNAS, 2019, in press.

In the news

September 12, 2016 Lighting the Way to Miniature Devices Science & Technology Research News
August 30, 2019 Directional plasmon excitation at molecular scales Phys.org
September 04, 2019 Behind the paper. The Droplet Force Apparatus: a novel surface characterization tool for wetting science Nature Research
December 11, 2019 Brushing oil away A*STAR Research Highlights

Tools

I do all my research and writing using simple tools installed on a phone or on a laptop. Although laptops have been around for many years, the way we use them changed significantly. For example, my laptops are running rather effortlessly multiple servers as well as blockchain full nodes. This allows designing, computing, and working on data presentation completely on the move. Once you learn how to deploy a simple machine learning model on a server you can easily code an interface to demonstrate how it performs. Apps on the mobile phone and on the laptop are syncing in the background. I try several different apps to see what works best for me.

• SimpleNote, Samsung Notes for short text notes
• Evernote and Pocket for websites
• Notebloc for documents and images
• Gmail for email
• Slack and WhatsApp for teams
• Overleaf for writing articles (paid version)
• Feedly for RSS newsfeeds (paid version)
• Moon+ Reader and OverDrive for ebooks
• Podcast Addict for podcasts