Vavra, J.; Rehor, I.; Rendler, T.; Jani, M.; Bednar, J.; Baksh, M. M.; Zappe, A.; Wrachtrup, J.; Cigler, P. Supported Lipid Bilayers on Fluorescent Nanodiamonds: A Structurally Defined and Versatile Coating for Bioapplications. Advanced Functional Materials 2018, 28 (45), 1803406. https://doi.org/ 
Havlik, J.; Petrakova, V.; Rehor, I.; Petrak, V.; Gulka, M.; Stursa, J.; Kucka, J.; Ralis, J.; Rendler, T.; Lee, S.-Y.; et al. Boosting Nanodiamond Fluorescence: Towards Development of Brighter Probes. Nanoscale 2013, 5 (8), 3208–3211. https://doi.org/ Ivan Rehor
room BS52
Institute of Chemical Engineering
University of Chemistry and Technology Prague
Technicka 3
166 28 Praha 6
e +420 220 444 453
b ivan.rehor@vscht.cz
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Technická 5
166 28 Prague 6 – Dejvice
IČO: 60461373 / VAT: CZ60461373
Czech Post certified digital mail code: sp4j9ch
Copyright: UCT Prague
Information provided by the Department of International Relations and the Department of R&D. Technical support by the Computing Centre.
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- Video z Festivalu vědy 2021
- Čeští vědci se podíleli na objevu nového řízení mikrorobotů (Lidovky)
- Mikroroboti z gelu a zlata řízení světlem? Žádné sci-fi, ale realita v podání českých vědců (Česká televize)
https://www.svetchytre.cz/a/pUZaW/cesti-vedci-vyvinuli-mikroskopicke-roboty-ze-zlata-pomuzou-napriklad-v-biomedicine
https://www.technickytydenik.cz/rubriky/denni-zpravodajstvi/mikroroboti-z-gelu-a-zlata-rizeni-svetlem_50495.html
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https://www.cysnews.cz/ostatni/novy-objev-odhali-padelana-leciva-a-posune-vyvoj-umelych-tkani/
https://media.monitora.cz/pdf-preview/1976/84369542-80531973c3e60af049de/
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Currently one funded PhD. position available!
This project combines chemical and lithographic approaches to create interactive autonomous hydrogel microcrawlers that locomote through periodic actuation when exposed to an appropriate stimulus (light, magnetic field). The crawlers’ trajectories are controlled by external field gradients in a similar manner to photo, chemo and magnetotaxis in unicellular organisms, which allows controlling simultaneously position of multiple crawlers in both space and time. Such crawlers can be used to autonomously manipulate microobjects, deliver chemical cargo to the place of interest or probe and report on the composition of their surroundings. Reversible assembly of the crawlers into ordered macroscopic actuating structures is the next goal of the project.
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Ivan RehorGroup leader |
 |
Yadu Nath Vakkipurath KodakkadanPh.D. student |
 |
Charlie MaslenPh.D. student |
Damla OrhanPh.D. student |
|
Jindrich KropacekMaster student |
|
Renata SvecovaBachelor student |
|
Eliska PazderkovaBachelor student |
|
Jan DurasBachelor student |
|
Radek HomolaBachelor student |
J. Vrba, C. Maslen, J. Maxova, J. Duras, I. Rehor and J. Mares, An automated platform for assembling light-powered hydrogel microrobots and their subsequent chemical binding Journal of Computational Science, 2021, 101446. https://doi.org/10.1016/j.jocs.2021.101446
P. Sharan, C. Maslen, B. Altunkeyik, I. Rehor, J. Simmchen and T. D. Montenegro-Johnson, Fundamental Modes of Swimming Correspond to Fundamental Modes of Shape: Engineering I-, U-, and S-Shaped Swimmers Advanced Intelligent Systems, 2021, https://doi.org/10.1002/aisy.202100068
Y. N. V. Kodakkadan, C. Maslen, P. Cigler, F. Štěpánek and I. Rehor, Friction-Directed Self-Assembly of Janus Lithographic Microgels into Anisotropic 2D Structures, J. Mater. Chem. B, 2021, 9, 4718–4725. https://doi.org/10.1039/D1TB00572C
Kodakkadan, Y. N. V.; Idzakovicova, K.; Sepitka, J.; Napel, D. ten; Safai, E.; Cigler, P.; Štěpánek, F.; Rehor, I. Arbitrarily-Shaped Microgels Composed of Chemically Unmodified Biopolymers. Biomater. Sci. 2020. https://doi.org/10.1039/C9BM02056J.
Rehor, I.; Maslen, C.; Moerman, P. G.; van Ravensteijn, B. G. P.; van Alst, R.; Groenewold, J.; Eral, H. B.; Kegel, W. K. Photoresponsive Hydrogel Microcrawlers Exploit Friction Hysteresis to Crawl by Reciprocal Actuation. Soft Robot. 2020. https://doi.org/10.1089/soro.2019.0169
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|
 Rehor, I.; van Vreeswijk, S.; Vermonden, T.; Hennink, W. E.; Kegel, W. K.; Eral, H. B. Biodegradable Microparticles for Simultaneous Detection of Counterfeit and Deteriorated Edible Products. Small 2017, 13 (39), 1701804. https://doi.org/ 10.1002/smll.201701804. |
 Slegerova, J.; Hajek, M.; Rehor, I.; Sedlak, F.; Stursa, J.; Hruby, M.; Cigler, P. Designing the Nanobiointerface of Fluorescent Nanodiamonds: Highly Selective Targeting of Glioma Cancer Cells. Nanoscale 2015, 7 (2), 415–420. https://doi.org/ 10.1039/C4NR02776K. |
| Rehor, I.; Lee, K. L.; Chen, K.; Hajek, M.; Havlik, J.; Lokajova, J.; Masat, M.; Slegerova, J.; Shukla, S.; Heidari, H.; et al. Plasmonic Nanodiamonds: Targeted Core–Shell Type Nanoparticles for Cancer Cell Thermoablation. Adv. Healthcare Mater. 2015, 4 (3), 460–468. https://doi.org/ 10.1002/adhm.201400421. |
| Petrakova, V.; Rehor, I.; Stursa, J.; Ledvina, M.; Nesladek, M.; Cigler, P. Charge-Sensitive Fluorescent Nanosensors Created from Nanodiamond. Nanoscale 2015. https://doi.org/ 10.1039/C5NR00712G. |
 Rehor, I.; Slegerova, J.; Kucka, J.; Proks, V.; Petrakova, V.; Adam, M.-P.; Treussart, F.; Turner, S.; Bals, S.; Sacha, P.; et al. Fluorescent Nanodiamonds Embedded in Biocompatible Translucent Shells. Small 2014, 10 (6), 1106–1115. https://doi.org/ 10.1002/smll.201302336. |
 Rehor, I.; Mackova, H.; Filippov, S. K.; Kucka, J.; Proks, V.; Slegerova, J.; Turner, S.; Van Tendeloo, G.; Ledvina, M.; Hruby, M.; et al. Fluorescent Nanodiamonds with Bioorthogonally Reactive Protein-Resistant Polymeric Coatings. ChemPlusChem 2014, 79 (1), 21–24. https://doi.org/ 10.1002/cplu.201300339. |
|
Řehoř, I.; Macháčková, L.; Bučánková, A.; Matějková, S.; Černá, K.; Straka, J. Measuring the Sugar Consumption of Larvae in Bumblebee Micro-Colonies: A Promising New Method for Tracking Food Economics in Bees. Apidologie 2014, 45 (1), 116–128. https://doi.org/ 10.1007/s13592-013-0233-6. |
|
Rehor, I.; Cigler, P. Precise Estimation of HPHT Nanodiamond Size Distribution Based on Transmission Electron Microscopy Image Analysis. Diamond and Related Materials 2014, 46, 21–24. https://doi.org/ 10.1016/j.diamond.2014.04.002. |
|
Chu, Z.; Zhang, S.; Zhang, B.; Zhang, C.; Fang, C.-Y.; Rehor, I.; Cigler, P.; Chang, H.-C.; Lin, G.; Liu, R.; et al. Unambiguous Observation of Shape Effects on Cellular Fate of Nanoparticles. Scientific Reports 2014, 4, 4495. https://doi.org/ 10.1038/srep04495. |
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|
| Berkova, Z.; Jirak, D.; Zacharovova, K.; Lukes, I.; Kotkova, Z.; Kotek, J.; Kacenka, M.; Kaman, O.; Rehor, I.; Hajek, M.; et al. Gadolinium- and Manganite-Based Contrast Agents with Fluorescent Probes for Both Magnetic Resonance and Fluorescence Imaging of Pancreatic Islets: A Comparative Study. ChemMedChem 2013, 8 (4), 614–621. https://doi.org/ 10.1002/cmdc.201200439. |
| Řehoř, I.; Vilímová, V.; Jendelová, P.; Kubíček, V.; Jirák, D.; Herynek, V.; Kapcalová, M.; Kotek, J.; Černý, J.; Hermann, P.; et al. Phosphonate–Titanium Dioxide Assemblies: Platform for Multimodal Diagnostic–Therapeutic Nanoprobes. J. Med. Chem. 2011, 54 (14), 5185–5194. https://doi.org/ 10.1021/jm200449y. |
|
Řehoř, I.; Kubíček, V.; Kotek, J.; Hermann, P.; Száková, J.; Lukeš, I. Modification of Nanocrystalline TiO2 with Phosphonate- and Bis(Phosphonate)-Bearing Macrocyclic Complexes: Sorption and Stability Studies. Eur. J. Inorg. Chem. 2011, 2011 (12), 1981–1989. https://doi.org/ 10.1002/ejic.201001100. |
| Řehoř, I.; Kubíček, V.; Kotek, J.; Hermann, P.; Lukeš, I.; Száková, J.; Vander Elst, L.; Muller, R. N.; Peters, J. A. 1H NMR Relaxivity of Aqueous Suspensions of Titanium Dioxide Nanoparticles Coated with a Gadolinium(III) Chelate of a DOTA-Monoamide with a Phenylphosphonate Pendant Arm. J. Mater. Chem. 2009, 19 (10), 1494–1500. https://doi.org/ 10.1039/b817065g. |
| Kubíček, V.; Řehoř, I.; Havlíčková, J.; Kotek, J.; Císařová, I.; Hermann, P.; Lukeš, I. Synthesis and Coordination Behavior of Symmetrical Tetraamine Phosphinic Acids. Eur. J. Inorg. Chem. 2007, 2007 (24), 3881–3891. https://doi.org/ 10.1002/ejic.200700010. |
Book chapters:
Řehoř, I.; Šlegerová, J.; Havlík, J.; Raabová, H.; Hývl, J.; Muchová, E.; Cígler, P. Nanodiamonds: Behavior in Biological Systems and Emerging Bioapplications. In Carbon Nanomaterials for Biomedical Applications; Zhang, M., Naik, R. R., Dai, L., Eds.; Springer Series in Biomaterials Science and Engineering; Springer International Publishing, 2016; pp 319–361. https://doi.org/ 10.1007/978-3-319-22861-7_11.
Slegerova, J.; Rehor, I.; Havlik, J.; Raabova, H.; Muchova, E.; Cigler, P. Nanodiamonds as Intracellular Probes for Imaging in Biology and Medicine. In Intracellular Delivery II; Prokop, A., Iwasaki, Y., Harada, A., Eds.; Fundamental Biomedical Technologies; Springer Netherlands, 2014; pp 363–401.
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In our group, we combine chemical and lithographic approaches to create interactive programable hydrogel microparticles (microgels) which serve as microscopic soft robots, building blocks for artificial tissues, in-vivo sensors, and others. To achieve that, we aim to develop following key abilities of the microgels:
Responsiveness
The microgel detects changes in its environment and respond to them
Mobility
The microgel reaches the desired location in (biological) environment, either passively by tailored set of properties, or actively through microgel locomotion, resembling motion of unicellular organisms.
Connectivity
Individual microgels can assemble autonomously into ordered structures.
Temporal programming
The microgel properties are subject to pre-programmed spontaneous changes.
Biocompatibility
The microgels consist from materials tolerated in-vivo to avoid adverse interactions with their living surrounding.
Our research projects include:
Artificial Cells
Lithographic Bio-microgels
Authenticity labels for pharmaceuticals
Hydrogel Robots
Self-assembly
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|
Ivan RehorGroup leader |
|
Yadu Nath Vakkipurath KodakkadanPh.D. student |
|
Charlie MaslenPh.D. student |
Damla OrhanPh.D. student |
|
Jindrich KropacekMaster student |
|
Renata SvecovaBachelor student |
|
Eliska PazderkovaBachelor student |
|
Jan DurasBachelor student |
|
Radek HomolaBachelor student |
Ivan Rehor
room BS52
Institute of Chemical Engineering
University of Chemistry and Technology Prague
Technicka 3
166 28 Praha 6
e +420 220 444 453
b ivan.rehor@vscht.cz
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