TY  - JOUR
A1  - Pikovskij, Arkadij
T1  - Transition to synchrony in chiral active particles
JF  - Journal of physics. Complexity
N2  - I study deterministic dynamics of chiral active particles in two dimensions. Particles are considered as discs interacting with elastic repulsive forces. An ensemble of particles, started from random initial conditions, demonstrates chaotic collisions resulting in their normal diffusion. This chaos is transient, as rather abruptly a synchronous collisionless state establishes. The life time of chaos grows exponentially with the number of particles. External forcing (periodic or chaotic) is shown to facilitate the synchronization transition.
KW  - active particles
KW  - chirality
KW  - synchronization
KW  - chaos
KW  - transient chaos
Y1  - 2021
U6  - https://doi.org/10.1088/2632-072X/abdadb
SN  - 2632-072X
VL  - 2
IS  - 2
PB  - IOP Publ. Ltd.
CY  - Bristol
ER  - 
TY  - JOUR
A1  - Holec, Jan
A1  - Rybáček, Jiří
A1  - Vacek, Jaroslav
A1  - Karras, Manfred
A1  - Bednárová, Lucie
A1  - Budesinsky, Milos
A1  - Slusna, Michaela
A1  - Holy, Petr
A1  - Schmidt, Bernd
A1  - Stará, Irena G.
A1  - Starý, Ivo
T1  - Chirality-Controlled Self-Assembly of Amphiphilic Dibenzo[6]helicenes into Langmuir-Blodgett Thin Films
JF  - Chemistry - a European journal
N2  - Racemic and highly enantioenriched 3-methoxycarbonyl, 3-carboxy, and 3-hydroxymethyl derivatives of dibenzo[6]helicene were prepared. The Langmuir layers of these helicenes were formed at the air-water interface and transferred onto solid substrates to afford Langmuir-Blodgett films, which were then studied by ambient atomic force microscopy and (chir)optical spectroscopy. Significant differences were found in the behaviour of the Langmuir layers as well as in the morphology, UV/Vis, electronic circular dichroism (ECD), and fluorescence spectra of the Langmuir-Blodgett thin films depending on the molecular chirality and nature of the polar group. The experimental results were supported by molecular dynamics simulations.
KW  - arenes
KW  - chirality
KW  - helical structures
KW  - Langmuir-Blodgett films
KW  - self-assembly
Y1  - 2019
U6  - https://doi.org/10.1002/chem.201901695
SN  - 0947-6539
SN  - 1521-3765
VL  - 25
IS  - 49
SP  - 11494
EP  - 11502
PB  - Wiley-VCH
CY  - Weinheim
ER  -