Results 71 to 80 of about 7,907,205 (365)

Brucella NyxA and NyxB dimerization enhances effector function during infection

FEBS Letters, EarlyView.
Brucella abortus thrives inside cells thanks to the translocation of effector proteins that fine‐tune cellular functions. NyxA and NyxB are two effectors that destabilize the nucleolar localization of their host target, SENP3. We show that the Nyx proteins directly interact with each other and that their dimerization is essential for their function ...
Lison Cancade‐Veyre, Arthur Louche, Francine C. A. Gérard, Laurent Terradot, Suzana P. Salcedo   +4 more
wiley   +1 more source

Polarization multiplexing and bifocal optical vortex metalens

Results in Physics, 2020
In this article, we demonstrate several optical vortex metalens (OVMs) based on the Pancharatnam–Berry (PB) geometric phase concept utilizing silicon nanobricks.
Wei Wang, Chong Guo, Zehan Zhao, Jing Li, Yan Shi   +4 more
doaj  

The Use of Supercontinuum Laser Sources in Biomedical Diffuse Optics: Unlocking the Power of Multispectral Imaging

Applied Sciences, 2021
Optical techniques based on diffuse optics have been around for decades now and are making their way into the day-to-day medical applications.
Frédéric Lange, Luca Giannoni, Ilias Tachtsidis   +2 more
doaj   +1 more source

Compact focusing grating couplers for silicon-on-insulator integrated circuits [PDF]

, 2007
—We report experimental results on compact and broadband focusing grating couplers, both in silicon-on-insulator (SOI) and gold on SOI. An eight-fold length reduction of the coupling structure from fiber to photonic wire in SOI, as com-pared to a linear ...
Dirk Taillaert, Dries Van Thourhout, Frederik Van Laere, Jonathan Schrauwen, Roel Baets, Stijn Scheerlinck, Student Member, Student Member, Student Member, Tom Claes, Wim Bogaerts   +10 more
core   +2 more sources

Focus issue introduction: optical cooling and trapping

Optics Express, 2015
The year 2015 is an auspicious year for optical science, as it is being celebrated as the International Year of Light and Light-Based Technologies. This Focus Issue of the journals Optics Express and Journal of the Optical Society of America B has been organized by the OSA Technical Group on Optical Cooling and Trapping to mark this occasion, and to ...
Neves Antonio A R, Jones Philip H, Luo Le, Marago Onofrio M   +3 more
openaire   +5 more sources

The carboxylate “gripper” of the substrate is critical for C‐4 stereo‐inversion by UDP‐glucuronic acid 4‐epimerase

FEBS Letters, EarlyView.
UDP‐glucuronic acid 4‐epimerase (UGAepi) catalyzes NAD+‐dependent interconversion of UDP‐glucuronic acid (UDP‐GlcA) and UDP‐galacturonic acid (UDP‐GalA) via C4‐oxidation, 4‐keto‐intermediate rotation, and C4‐reduction. Here, Borg et al. examined the role of the substrate's carboxylate group in the enzymic mechanism by analyzing NADH‐dependent reduction
Annika J. E. Borg, Laura De Cnop, Bernd Nidetzky   +2 more
wiley   +1 more source

Recent advances in nonlinear optics for bio-imaging applications

Opto-Electronic Advances, 2020
Nonlinear optics, which is a subject for studying the interaction between intense light and materials, has great impact on various research fields. Since many structures in biological tissues exhibit strong nonlinear optical effects, nonlinear optics has
Zhang Silu, Liu Liwei, Ren Sheng, Li Zilin, Zhao Yihua, Yang Zhigang, Hu Rui, Qu Junle   +7 more
doaj   +1 more source

A Focus on the Optical Properties of the Regenerated Newt Lens

PLoS ONE, 2013
Lens regeneration studies in the adult newt suggest that molecular aspects of lens regeneration are complete within 5 weeks of lentectomy. However, very little is known about the optical properties of the regenerated lens. In an aquatic environment, the lens accounts for almost all of the refractive power of the eye, and thus, a fully functional lens ...
Rejean Munger, Rejean Munger, Payman Rajai, Payman Rajai, Margaret Beddaoui, Sarah Wassmer, Catherine Tsilfidis, Catherine Tsilfidis   +7 more
openaire   +5 more sources

The optics of the Final Focus Test Beam [PDF]

Conference Record of the 1991 IEEE Particle Accelerator Conference, 2002
Strategies for tuning and correcting aberrations that arise as the real Final Focus Test Beam (FFTB) lattice departs from the design lattice are presented. The following beam-based tuning and alignment strategies are examined: quadrupole alignment, quadrupole tuning, sextupole pair alignment and tuning, and stability of CCX, CCY, and final doublet. The
R. Helm, Ronald D. Ruth, D. L. Burke, F. Bulos, N. Yamamoto, J. Irwin, K. Brown, K. Oide, G. Roy   +8 more
openaire   +1 more source

Nonlinear optics in carbon nanotube, graphene, and related 2D materials

APL Photonics, 2019
One- and two-dimensional forms of carbon, carbon nanotube, and graphene, and related 2D materials, have attracted great attention of researchers in many fields for their interesting and useful electrical, optical, chemical, and mechanical properties.
S. Yamashita
semanticscholar   +1 more source