49 citations · 172 across the 22 of their papers we have counts for
22 papers
From Feynman's ratchet to timecrystalline molecular motors
Jianmei Wang, Jin Dai, Antti J. Niemi +1
Cats use the connection governing parallel transport in the space of shapes to land safely on their feet. Here we argue that this connection also explains the impressive performanc…
Research on the transition dynamics and linear (nonlinear) optical properties of mCherry
Yuanjin Wang, Gaoshang Li, Jin Dai +2
In this study, we explore the electron transition mechanism and optical properties of the popular red fluorescent protein mCherry. By examining the charge transfer spectrum and com…
MD simulations and experiments of plasma proteins adsorption to the biodegradable magnesium alloys to facilitate cell response
Xian Wei, Jiajia Menga, Sujie Ma +5
Once the magnesium alloy was implanted in the body, it was immediately covered with plasma proteins. The coated alloy surface promoted the adsorption and growth of osteoblasts. Her…
An mCherry biolaser based on microbubble cavity with ultra-low threshold
Jiyang Ma, Shuoying Zhao, Xubiao Peng +4
Biolasers show considerable potential in the biomedical field. Fluorescent protein (FP) is a type of biomaterial with good luminescence efficiency that can be used as the luminesce…
Ultralow-threshold green fluorescent protein laser based on high Q microbubble resonators
Shuoying Zhao, Gaoshang Li, Xubiao Peng +3
Biological lasers have attracted vast attention because of their potential medical application prospects, especially the low threshold biological laser, which can be used for ultra…
Substrate-free THz focal plane metamaterial array with high absorption ratio
Zhigang Li, Yi Ou, Xubiao Peng +4
Microelectromechanical system (MEMS) focal plane array (FPA) with optical readout offers exciting opportunities for real-time terahertz (THz) imaging. However, conventional FPA suf…
Rotation by shape change, autonomous molecular motors and effective timecrystalline dynamics
Xubiao Peng, Jin Dai, Antti J. Niemi
A deformable body can rotate even with no angular momentum, simply by changing its shape. A good example is a falling cat, how it maneuvers in air to land on its feet. Here a first…
Classical Hamiltonian Time Crystals -- General Theory And Simple Examples
Jin Dai, Antti J. Niemi, Xubiao Peng
We focus on a Hamiltonian system with a continuous symmetry, and dynamics that takes place on a presymplectic manifold. We explain how the symmetry can become spontaneously broken…
The photon vortex beam in rotating medium
Jianye Wei, Wei Jia, Xubiao Peng +1
In this paper we consider the photon vortex beam in the rotating medium, where the rotating velocity acts as an effective vector potential. Using the Riemann-Silberstein vector, we…
Topologically enhanced time crystals and molecular knots
Jin Dai, Xubiao Peng, Antti J. Niemi
A time crystal is a time dependent physical system that does not reach a standstill, even in state of minimum energy. Here we show that the stability of a time crystal can be enhan…
Improvement in corrosion resistance and biocompatibility of AZ31 magnesium alloy by NH+2 ions
Xian Wei, Zhicheng Li, Pinduo Liu +4
Magnesium alloys have been considered to be favorable biodegradable metallic materials used in orthopedic and cardiovascular applications. We introduce NH+2 to the AZ31 Mg alloy su…
Can all-atom protein dynamics be reconstructed from the knowledge of C-alpha time evolution?
Jiaojiao Liu, Jin Dai, Jianfeng He +2
We inquire to what extent protein peptide plane and side chain dynamics can be reconstructed from knowledge of C-alpha dynamics. Due to lack of experimental data we analyze all ato…
Truncated Dynamics, Ring Molecules and Mechanical Time Crystals
Dai Jin, Antti J. Niemi, Xubiao Peng +1
In applications of mechanics, including quantum mechanics, we often consider complex systems, where complete solutions of the underlying "fundamental" equations is both impractical…
Virtual reality analysis of intrinsic protein geometry with applications to cis peptide planes
Yanzhen Hou, Jin Dai, Nevena Ilieva +3
A protein is traditionally visualised as a piecewise linear discrete curve, and its geometry is conventionally characterised by the extrinsically determined Ramachandran angles. Ho…
Solution X-ray scattering (S/WAXS) and structure formation in protein dynamics
Alexandr Nasedkin, Jan Davidsson, Antti J. Niemi +1
We propose to develop mean field theory in combination with Glauber algorithm, to model and interpret protein dynamics and structure formation in small to wide angle x-ray scatteri…
Thermal unfolding of myoglobin in the Landau-Ginzburg-Wilson approach
Xubiao Peng, Adam Sieradzan, Antti J. Niemi
The Landau-Ginzburg-Wilson paradigm is applied to model the low-temperature crystallographic C backbone structure of sperm whale myoglobin. The Glauber protocol is employed to s…
Virtual reality based approach to protein heavy-atom structure reconstruction
Xubiao Peng, Alireza Chenani, Shuangwei Hu +2
A commonly recurring problem in structural protein studies, is the determination of all heavy atom positions from the knowledge of the central alpha-carbon coordinates. We employ a…
Aspects of structural landscape of human islet amyloid polypeptide
Jianfeng He, Jin Dai, Jing Li +2
The human islet amyloid polypeptide (hIAPP) co-operates with insulin to maintain glycemic balance. It also constitutes the amyloid plaques that aggregate in the pancreas of type-II…
Peierls-Nabarro Barrier and Protein Loop Propagation
Adam K. Sieradzan, Antti Niemi, Xubiao Peng
When a self-localized quasiparticle excitation propagates along a discrete one dimensional lattice, it becomes subject to a dissipation that converts the kinetic energy into lattic…
On the role of thermal backbone fluctuations in myoglobin ligand gate dynamics
Andrey Krokhotin, Antti J. Niemi, Xubiao Peng
We construct an energy function that describes the crystallographic structure of spermwhale myoglobin backbone. As a model in our construction, we use the Protein Data Bank entry 1…
Soliton concepts and the protein structure
Andrei Krokhotin, Antti J. Niemi, Xubiao Peng
Structural classification shows that the number of different protein folds is surprisingly small. It also appears that proteins are built in a modular fashion, from a relatively sm…
Towards Quantitative Classification of Folded Proteins in Terms of Elementary Functions
Shuangwei Hu, Andrei Krokhotin, Antti J. Niemi +1
A comparative classification scheme provides a good basis for several approaches to understand proteins, including prediction of relations between their structure and biological fu…