Results 41 to 50 of about 345,999 (291)

All-optical manipulation of photonic membranes [PDF]

Optics Express, 2016
We demonstrate the all-optical manipulation of polymeric membranes in microfluidic environments. The membranes are decorated with handles for their use in holographic optical tweezers systems. Our results show that due to their form factor the membranes present a substantial increase in their mechanical stability, respect to micrometric dielectric ...
Askari, Meisam, Kirkpatrick, Blair C., Čižmár, Tomas, Di Falco, Andrea   +3 more
openaire   +7 more sources

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

A Wafer Pre-Alignment Algorithm Based on Weighted Fourier Series Fitting of Circles and Least Squares Fitting of Circles

Micromachines, 2023
The wafer pre-aligner is a crucial component in the lithography process to correct the wafer center and notch orientation. To improve the precision and the efficiency of pre-alignment, a new method to calibrate the center and the orientation of a wafer ...
Jingsong Chen, Zhou Lan, Cheng Xue, Jun Lan, Zhenghao Liu, Yong Yang   +5 more
doaj   +1 more source

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

FEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva, Puspa Kunwar, Md Ibnul Rifat Rahman, Joanna Koryo Kwao, Nathan Lehman, Zihan Zhang, Trenton Paul, Claire Cheng, Nicholas Truex, Hui‐Ting Lee, Jun Zhang   +10 more
wiley   +1 more source

Manipulation of Single Neutral Atoms in Optical Lattices

, 2006
We analyze a scheme to manipulate quantum states of neutral atoms at individual sites of optical lattices using focused laser beams. Spatial distributions of focused laser intensities induce position-dependent energy shifts of hyperfine states, which ...
Chuanwei Zhang, H. J. Briegel, H. J. Metcalf, M. A. Nielsen, P. S. Jessen, S. Das Sarma, S. L. Rolston, S. L. Rolston   +7 more
core   +1 more source

Coherent manipulation of atomic qubits in optical micropotentials [PDF]

, 2007
We experimentally demonstrate the coherent manipulation of atomic states in far-detuned dipole traps and registers of dipole traps based on two-dimensional arrays of microlenses.
A. Kaplan, A. Lengwenus, C. Klempt, E.L. Hahn, F. Bloch, F.B.J. Buchkremer, G. Birkl, G. Birkl, G. Grynberg, H. Katori, I. Deutsch, J. Kruse, M. Volk, M.A. Nielsen, M.F. Andersen, N. Davidson, N. Schlosser, N.A. Kurnit, N.F. Ramsey, P. Treutlein, P.S. Jessen, R. Dumke, R. Ozeri, S. Kuhr, W. Ertmer   +24 more
core   +2 more sources

Organ‐specific redox imbalances in spinal muscular atrophy mice are partially rescued by SMN antisense oligonucleotides

FEBS Letters, EarlyView.
We identified a systemic, progressive loss of protein S‐glutathionylation—detected by nonreducing western blotting—alongside dysregulation of glutathione‐cycle enzymes in both neuronal and peripheral tissues of Taiwanese SMA mice. These alterations were partially rescued by SMN antisense oligonucleotide therapy, revealing persistent redox imbalance as ...
Sofia Vrettou, Brunhilde Wirth
wiley   +1 more source

Full-space inverse-designed meta-optics for complex vector field shaping of intracavity landscapes

Light: Science & Applications
The sophisticated shaping of electromagnetic field landscapes, both outside and inside optical cavities, has long been an important goal of optics and photonics, with broad applications in near-field imaging, lithography, and laser science.
Mingfeng Xu, Di Sang, Mingbo Pu, Ping Gao, Bowen Zhao, Yuhan Zheng, Qingji Zeng, Lianwei Chen, Fei Zhang, Yinghui Guo, Xiong Li, Xiaoliang Ma, Yunqi Fu, Xiangang Luo   +13 more
doaj   +1 more source

Polarization-Enhanced Underwater Detection Method for Multiple Material Targets Based on Deep-Learning

IEEE Photonics Journal, 2023
Underwater target detection is an essential topic in the applications of underwater exploration. However, underwater target detection faces serious challenges, such as complex scattering, low visibility, and target clutter.
Guochen Wang, Jie Gao, Yubin Chen, Xin Wang, Jiangtao Li, Khian-Hooi Chew, Rui-Pin Chen   +6 more
doaj   +1 more source

Microdroplet oscillations during optical pulling

, 2011
It was recently shown theoretically that it is possible to pull a spherical dielectric body towards the source of a laser beam [Nature Photonics {\bf 5}, 531 (2011)], a result with immediate consequences to optical manipulation of small droplets. Optical
Ellingsen, Simen Å.
core   +1 more source