Results 71 to 80 of about 215,149 (301)

Femtosecond laser ablation-ICP-mass spectrometry analysis of a heavy metallic matrix : determination of platinum group metals and gold in lead fire-assay buttons as a case study [PDF]

, 2010
Owing to the shorter time interval during which energy is delivered to the sample material, femtosecond (fs) laser ablation is preferable over nanosecond laser ablation for metallic samples. In this project, the influence of various laser parameters-beam
Günther, Detlev, Koch, Joachim, McIntosh, Keith, Resano, Martín, Vanhaecke, Frank   +4 more
core   +1 more source

Multi‐omics and low‐input proteomics profiling reveals dynamic regulation driving pluripotency initiation in early mouse embryos

FEBS Open Bio, EarlyView.
Mouse pre‐implantation development involves a transition from totipotency to pluripotency. Integrating transcriptomics, epigenetic profiling, low‐input proteomics and functional assays, we show that eight‐cell embryos retain residual totipotency features, whereas cytoskeletal remodeling regulated by the ubiquitin‐proteasome system drives progression ...
Wanqiong Li, Xi Xiao, Lingbin Qi, Chanyi Li, Sirui Song, Jiaying Qin, Zhigang Xue, Jinfeng Xue, Huaifang Li   +8 more
wiley   +1 more source

Kilohertz laser ablation for doping helium nanodroplets

, 2007
A new setup for doping helium nanodroplets by means of laser ablation at kilohertz repetition rate is presented. The doping process is characterized and two distinct regimes of laser ablation are identified.
B. Forkl, F. Stienkemeier, Grebenev S., M. Dvorak, M. Mudrich, O. Bünermann, S. Müller   +6 more
core   +1 more source

NdYAG laser treatment of a glomus tympanicum tumour [PDF]

, 1993
Glomus tympanicum tumours are highly vascular tumours of the middle ear. Their removal by conventional surgical methods requires an extensive procedure in many cases, often with ossicular disarticulation to allow adequate exposure prior to the 'chaotic ...
Bown, SG, Grant, HR, Robinson, PJ
core   +1 more source

Dapagliflozin prevents methylglyoxal‐induced retinal cell death in ARPE‐19 cells

FEBS Open Bio, EarlyView.
Diabetic macular oedema is a diabetes complication of the eye, which may lead to permanent blindness. ARPE‐19 are human retinal cells used to study retinal diseases and potential therapeutics. Methylglyoxal is a compound increased in uncontrolled diabetes due to elevated blood glucose.
Naina Trivedi, Zainab Quraishi, Shima Khezri Azizi Far, Madaleine Ward, Aidan Conway, Reem Abdulredha, Eman Mshari, Yousif A. Shamsaldeen   +7 more
wiley   +1 more source

Nd:YAG fourth harmonic (266-nm) generation for corneal reshaping procedure: An ex-vivo experimental study.

PLoS ONE, 2021
Corneal reshaping is a common medical procedure utilized for the correction of different vision disorders relying on the ablation effect of the UV pulsed lasers, especially excimer lasers (ArF) at 193 nm.
Ibrahim Abdelhalim, Omnia Hamdy, Aziza Ahmed Hassan, Salah Hassab Elnaby   +3 more
doaj   +1 more source

Optimization of femtosecond laser processing in liquids

, 2018
In this paper we analyze femtosecond laser processing of metals in liquids searching for optimal conditions for predictable ablation. Incident laser pulses are stretched or compressed, self-focused and scattered on bubbles and on surface waves in the ...
Gregorčič, Peter, Gurevich, Evgeny L., Hoppius, Jan S., Kanitz, Alexander, Maragkaki, Stella   +4 more
core   +2 more sources

Visual Recovery Reflects Cortical MeCP2 Sensitivity in Rett Syndrome

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Rett syndrome (RTT) is a devastating neurodevelopmental disorder with developmental regression affecting motor, sensory, and cognitive functions. Sensory disruptions contribute to the complex behavioral and cognitive difficulties and represent an important target for therapeutic interventions.
Alex Joseph Simon, Nathalie Picard, Valeria d'Andrea, Enchi Chang, Joseph Leffler, Eleonora Centofante, Matthew Taylor, Francesca Bardi, Francesca Cavicchiolo, Takao K. Hensch, Stefano Panzeri, Chinfei Chen, Michela Fagiolini   +12 more
wiley   +1 more source

Mixing enthalpy-driven variations in ablation thresholds and laser-induced crater morphologies of CoCuFeNiMnMox (x=0.5, 1.0, 1.5) high-entropy alloys under UV nanosecond laser pulses

Results in Surfaces and Interfaces
This study investigates the ablation threshold fluence and power dependence of ablation process in CoCuFeNiMnMox (x = 0.5, 1.0, and 1.5) high-entropy alloys under ultraviolet nanosecond laser pulses.
Hossein Mahdavi, Abdullah Kepçeoğlu, Armin Asghari Alamdari, Uğur Ünal, Hadi Jahangiri   +4 more
doaj   +1 more source

Electronic mechanism of ion expulsion under UV nanosecond laser excitation of silicon: Experiment and modeling

, 2004
We present experimental and modeling studies of UV nanosecond pulsed laser desorption and ablation of (111) bulk silicon. The results involve a new approach to the analysis of plume formation dynamics under high-energy photon irradiation of the ...
Bulgakova, Nadezhda M., Marine, Wladimir, Ozerov, Igor, Patrone, Lionel   +3 more
core   +3 more sources