Results 41 to 50 of about 26,579 (259)

Experimental investigation on optical vortex tweezers for microbubble trapping

Open Physics, 2018
In this paper, we investigated the microbubble trapping using optical vortex tweezers. It is shown that the microbubble can be trapped by the vortex optical tweezers, in which the trapping light beam is of vortex beam.
Zhou Xiaoming, Chen Ziyang, Liu Zetian, Pu Jixiong   +3 more
doaj   +1 more source

KDAC6 alters cell morphology and motility through positive and negative modulation of F‐actin distribution

FEBS Open Bio, EarlyView.
KDAC6 has been associated with cell motility and actin structures, but specific domain contributions are not established. The two catalytic domains have differential effects on motility and F‐actin regulation, affecting cortical F‐actin density, motility, stress fibers, and cell spreading.
Taylor V. Joseph, Andrea B. Pham, Kiara E. Bornes, Razan H. Hammad, Chelsea A. Rousseve‐Ross, Thomas M. Huckaba, Terry J. Watt, Tasha B. Toro   +7 more
wiley   +1 more source

Optical Vortex-Enhanced LIBS: Signal Improvement and Precise Classification of Coal Properties with Machine Learning

Applied Sciences
Laser-induced breakdown spectroscopy (LIBS), limited by matrix effects, self-absorption in complex samples, and ambient atmospheric influences, still requires further improvement in detection sensitivity and signal stability. In this work, the excitation
Yuxia Zhou, Abulimiti Yasen, Jianqiang Ye, Palidan Aierken, Bumaliya Abulimiti, Mei Xiang   +5 more
doaj   +1 more source

Purification and preparation of Marchantia polymorpha Auxin Response Factor 2 for phase separation studies

FEBS Open Bio, EarlyView.
We describe detailed protocols for the purification and preparation of Marchantia polymorpha Auxin Response Factor 2 (MpARF2). This protein is fused to an MBP solubility tag and an mNG fluorescent tag and is purified from Escherichia coli. The presented procedures make it possible to study MpARF2 assemblies, which could arise from phase separation ...
Bas Janssen, Robin Romein, Willy A. M. van den Berg, Simon Lindhoud, Jan Willem Borst, Carlo P. M. van Mierlo   +5 more
wiley   +1 more source

The C‐terminal domain of yeast Arginyltransferase1 is essential for its catalytic activity

FEBS Open Bio, EarlyView.
Arginyltransferase 1 (Ate1), a eukaryotic enzyme, catalyses arginylation, transferring arginine from tRNA‐Arg to the amino terminus of the target protein. Overexpression of Ate1 in yeast is lethal and is dependent on arginylation. This study elucidates how mutations in the cofactor‐binding and active site of Ate1 and truncation of its structural ...
Vikas Kumar Yadav, Shweta Shweta, Manisha Malhotra, Vikash Maurya, Akhilesh Kumar   +4 more
wiley   +1 more source

Optical vortex lasers [Invited]

Optics Express
The manipulation of light fields has become pivotal in advancing various domains of optics, including classical and quantum communications, optical trapping, optical metrology and high-resolution imaging. Among various techniques for creating optical vortices, the optical vortex lasers, distinguished by directly emitting customized beams with phase or ...
Jian Wang, Zhenyu Wan, Kang Li, Yuchen Zhang   +3 more
openaire   +2 more sources

Artificial Intelligence in Systemic Sclerosis: Clinical Applications, Challenges, and Future Directions

Arthritis Care &Research, EarlyView.
Systemic sclerosis (SSc) is a rare autoimmune disease defined by immune dysregulation, vasculopathy, and progressive fibrosis of the skin and internal organs. Despite advances in care, major complications such as interstitial lung disease (ILD) and myocardial involvement remain the leading causes of morbidity and mortality.
Cristiana Sieiro Santos, José Miguel Sequí‐Sabater, Diego Benavent   +2 more
wiley   +1 more source

Integrated optical vortex microcomb

Nature Photonics
The explorations of physical degrees of freedom with infinite dimensionalities, such as orbital angular momentum and frequency of light, have profoundly reshaped the landscape of modern optics with representative photonic functional devices including optical vortex emitters and frequency combs.
Bo Chen, Yueguang Zhou, Yang Liu, Chaochao Ye, Qian Cao, Peinian Huang, Chanju Kim, Yi Zheng, Leif Katsuo Oxenløwe, Kresten Yvind, Jin Li, Jiaqi Li, Yanfeng Zhang, Chunhua Dong, Songnian Fu, Qiwen Zhan, Xuehua Wang, Minhao Pu, Jin Liu   +18 more
openaire   +2 more sources

Direction of energy flows at the focus of cylindrical vortex vector beams

Компьютерная оптика
In this work, we show analytically using the Richards-Wolf formalism and through the numerical simulation that at the sharp focus of a circularly polarized optical vortex, three energy flows occur: the direct longitudinal, reverse longitudinal, and ...
V.V. Kotlyar, A.A. Kovalev, A.G. Nalimov, A.M. Telegin   +3 more
doaj   +1 more source

Ring-broken optical vortices with an adjustable opening

Results in Physics, 2019
A modified helical phase is presented in this paper. The generated vortex beams with the modified helical phases are characterized with ring-broken intensity distributions.
Shubo Cheng, Tian Xia, Mengsi Liu, Yiping Xu, Shan Xu, Shufang Gao, Geng Zhang, Shaohua Tao, Wenxing Yang   +8 more
doaj   +1 more source