dr hab. Bartłomiej Graczykowski

@article{Sledzinska2020b,
title = {Ultrathin Polydopamine Films with Phospholipid Nanodiscs Containing a Glycophorin A Domain},
author = {Tommaso Marchesi Dalvise and Sean Harvey and Lisa Hueske and Jolanta Szelwicka and Lothar Veith and Tuomas P J Knowles and Dennis Kubiczek and Carolin Flaig and Fabian Port and Kay-E. Gottschalk and Frank Rosenau and Bartłomiej Graczykowski and George Fytas and Francesco S Ruggeri and Katrin Wunderlich and Tanja Weil},
url = {https://onlinelibrary.wiley.com/doi/abs/10.1002/adfm.201904434 http://doi.wiley.com/10.1002/adfm.202000378},
doi = {10.1002/adfm.202000378},
issn = {1616301X},
year = {2020},
date = {2020-03-01},
journal = {Advanced Functional Materials},
volume = {30},
number = {8},
pages = {2000378},
keywords = {},
pubstate = {published},
tppubtype = {article}
}

@article{Sledzinska2020c,
title = {Multiband Hypersound Filtering in Two-Dimensional Colloidal Crystals: Adhesion, Resonances, and Periodicity},
author = {Bartłomiej Graczykowski and Nicolas Vogel and Karina Bley and Hans-Jürgen Butt and George Fytas},
url = {https://onlinelibrary.wiley.com/doi/abs/10.1002/adfm.201904434 http://doi.wiley.com/10.1002/adfm.202000378 https://pubs.acs.org/doi/10.1021/acs.nanolett.9b05101},
doi = {10.1021/acs.nanolett.9b05101},
issn = {1530-6984},
year = {2020},
date = {2020-03-01},
journal = {Nano Letters},
volume = {20},
number = {3},
pages = {1883--1889},
keywords = {},
pubstate = {published},
tppubtype = {article}
}

@article{Sledzinska2020,
title = {2D Phononic Crystals: Progress and Prospects in Hypersound and Thermal Transport Engineering},
author = {Marianna Śledzińska and Bartłomiej Graczykowski and Jeremie Maire and Emigdio Chavez‐Angel and Clivia M Sotomayor‐Torres and Francesc Alzina},
url = {https://onlinelibrary.wiley.com/doi/abs/10.1002/adfm.201904434},
doi = {10.1002/adfm.201904434},
issn = {1616-301X},
year = {2020},
date = {2020-02-01},
journal = {Advanced Functional Materials},
volume = {30},
number = {8},
pages = {1904434},
keywords = {},
pubstate = {published},
tppubtype = {article}
}

@article{BABACIC2020786,
title = {Mechanical reinforcement of polymer colloidal crystals by supercritical fluids},
author = {Višnja Babačić and Jeena Varghese and Emerson Coy and Eunsoo Kang and Mikołaj Pochylski and Jacek Gapiński and George Fytas and Bartłomiej Graczykowski},
url = {http://www.sciencedirect.com/science/article/pii/S0021979720308493},
doi = {https://doi.org/10.1016/j.jcis.2020.06.104},
issn = {0021-9797},
year = {2020},
date = {2020-01-01},
journal = {Journal of Colloid and Interface Science},
volume = {579},
pages = {786 - 793},
abstract = {Colloidal crystals realized by self-assembled polymer nanoparticles have prominent attraction as a platform for various applications from assembling photonic and phononic crystals, acoustic metamaterials to coating applications. However, the fragility of these systems limits their application horizon. In this work the uniform mechanical reinforcement and tunability of 3D polystyrene colloidal crystals by means of cold soldering are reported. This structural strengthening is achieved by high pressure gas (N2 or Ar) plasticization at temperatures well below the glass transition. Brillouin light scattering is employed to monitor in-situ the mechanical vibrations of the crystal and thereby determine preferential pressure, temperature and time ranges for soldering, i.e. formation of physical bonding among the nanoparticles while maintaining the shape and translational order. This low-cost method is potentially useful for fabrication and tuning of durable devices including applications in photonics, phononics, acoustic metamaterials, optomechanics, surface coatings and nanolithography.},
keywords = {Brillouin light scattering, Colloidal crystals, Phononic crystals, Photonic crystals, Plasticization},
pubstate = {published},
tppubtype = {article}
}

@article{Śledzińska2019,
title = {2D Phononic Crystals: Progress and Prospects in Hypersound and Thermal Transport Engineering},
author = {Marianna Śledzińska and Bartłomiej Graczykowski and Jeremie Marie and Emigdio Chavez-Angel and Clivia M. Sotomayor-Torres and Francesc Alzina},
doi = {10.1002/adfm.201904434},
year = {2019},
date = {2019-09-11},
journal = {Advanced Functional Materials},
pages = {1904434},
abstract = {The central concept in phononics is the tuning of the phonon dispersion relation, or phonon engineering, which provides a means of controlling related properties such as group velocity or phonon interactions and, therefore, phonon propagation, in a wide range of frequencies depending on the geometries and sizes of the materials. Phononics exploits the present state of the art in nanofabrication to tailor dispersion relations in the range of GHz for the control of elastic waves/phonons propagation with applications toward new information technology concepts with phonons as state variable. Moreover, phonons provide an adaptable approach for supporting a coherent coupling between different state variables, and the development of nanoscale optomechanical systems during the last decade attests this prospect. The most extended approach to manipulate the phonon dispersion relation is introducing an artificial periodic modulation of the elastic properties, which is referred to as phononic crystal (PnC). Herein, the focus is on the recent experimental achievements in the fabrication and application of 2D PnCs enabling the modification of the dispersion relation of surface and membrane modes, and presenting phononic bandgaps, waveguiding, and confinement in the hypersonic regime. Furthermore, these artificial materials offer the potential of modifying and controlling the heat flow to enable new schemes in thermal management.},
keywords = {brillouin},
pubstate = {published},
tppubtype = {article}
}

@article{Graczykowski2019,
title = {Brillouin light scattering under one-dimensional confinement: Symmetry and interference self-canceling},
author = {Bartłomiej Graczykowski and A Gueddida and B Djafari-Rouhani and H -J Butt and Georg Fytas},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85065496617&doi=10.1103%2fPhysRevB.99.165431&partnerID=40&md5=fc7596c288a1a9ecba8176296c150eac},
doi = {10.1103/PhysRevB.99.165431},
year = {2019},
date = {2019-01-01},
journal = {Physical Review B},
volume = {99},
number = {16},
abstract = {We present the spontaneous Brillouin light scattering (BLS) under simultaneous one-dimensional confinement of sound and light and show that the photon-phonon coupling results from nontrivial interplay of the photoelastic and moving-interface effects. We reveal two types of BLS self-canceling: governed by mode symmetry and driven by destructive interference of the two effects. We show that the latter can be adjusted by the light polarization and phonon wave number. Furthermore, we present a measurement of the shear-horizontal waves in thin membranes. © 2019 American Physical Society.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}

@article{Kang20195399,
title = {Shell Architecture Strongly Influences the Glass Transition, Surface Mobility, and Elasticity of Polymer Core-Shell Nanoparticles},
author = {E Kang and Bartłomiej Graczykowski and U Jonas and D Christie and L A G Gray and D Cangialosi and R D Priestley and Georg Fytas},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85070272667&doi=10.1021%2facs.macromol.9b00766&partnerID=40&md5=2dcd70191d0df0d80f2a608e2ce143cc},
doi = {10.1021/acs.macromol.9b00766},
year = {2019},
date = {2019-01-01},
journal = {Macromolecules},
volume = {52},
number = {14},
pages = {5399-5406},
abstract = {Despite the growing application of nanostructured polymeric materials, there still remains a large gap in our understanding of polymer mechanics and thermal stability under confinement and near polymer-polymer interfaces. In particular, the knowledge of polymer nanoparticle thermal stability and mechanics is of great importance for their application in drug delivery, phononics, and photonics. Here, we quantified the effects of a polymer shell layer on the modulus and glass-transition temperature (Tg) of polymer core-shell nanoparticles via Brillouin light spectroscopy and modulated differential scanning calorimetry, respectively. Nanoparticles consisting of a polystyrene (PS) core and shell layers of poly(n-butyl methacrylate) (PBMA) were characterized as model systems. We found that the high Tg of the PS core was largely unaffected by the presence of an outer polymer shell, whereas the lower Tg of the PBMA shell layer decreased with increasing PBMA thickness. The surface mobility was revealed at a temperature about 15 K lower than the Tg of the PBMA shell layer. Overall, the modulus of the core-shell nanoparticles decreased with increasing PBMA shell layer thickness. These results suggest that the nanoparticle modulus and Tg can be tuned independently through the control of nanoparticle composition and architecture. © 2019 American Chemical Society.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}

@article{graczykowski2011iron,
title = {Iron--dextran complex: Geometrical structure and magneto-optical features},
author = {Bartłomiej Graczykowski and Andrzej Dobek},
year = {2011},
date = {2011-01-01},
journal = {Journal of colloid and interface science},
volume = {363},
number = {2},
pages = {551--556},
publisher = {Elsevier},
keywords = {},
pubstate = {published},
tppubtype = {article}
}