Results 151 to 160 of about 325,267 (403)

Femtosecond Direct Laser Writing of Conductive and Electrically Switchable PEDOT:PSS Optical Nanostructures

open access: yesAdvanced Optical Materials, EarlyView.
Commercial femtosecond direct laser writing (Nanoscribe GT) is utilized to fabricate electrically switchable PEDOT:PSS nanostructures on ITO‐coated glass substrates, as well as underneath and on top of 3D‐printed structures and demonstrates beam‐switching at 1550 nm. Abstract Microscale three‐dimensional (3D)‐printing, with its remarkable precision and
Dominik Ludescher   +8 more
wiley   +1 more source

Use of optical fibers in spectrophotometry [PDF]

open access: yes
The use of single or small numbers of fiber optic fibers in astronomical spectroscopy with the goal of greater spectrophotometric and radial velocity accuracy is discussed.
Ramsey, Lawrence W.
core   +1 more source

AQUA‐FINS: Advanced Quantitative Underwater Analysis by a Flexible Integrated Nitrate Sensor

open access: yesAdvanced Sensor Research, Volume 4, Issue 5, May 2025.
This work presents a flexible, integrated sensor array for real‐time monitoring of nitrate, pH, and temperature in aquaculture. The sensors exhibit high sensitivity and selectivity, while a regression model improves nitrate detection accuracy in dynamic conditions. Successful field deployment of the sensor array highlights its potential for maintaining
Shah Zayed Riam   +6 more
wiley   +1 more source

Multi-filter spectrophotometry of quasar environments [PDF]

open access: yes
A many-filter photometric technique for determining redshifts and morphological types, by fitting spectral templates to spectral energy distributions, has good potential for application in surveys.
Craven, Sally E.   +2 more
core   +1 more source

The Spectrum of the Night Sky Over Kitt Peak: Changes Over Two Decades

open access: yes, 2010
New absolute spectrophotometry of the Kitt Peak night sky has been obtained in 2009/10, which we compare to previously published data obtained in 1988 and 1999, allowing us to look for changes over the past two decades.
Massey, Philip, Neugent, Kathryn F
core   +1 more source

A Silk Fibroin Nanoparticle Hydrogel Loaded With NK1R Antagonist Has Synergistic Anti‐Inflammatory and Reparative Effects on Dry Eye Disease

open access: yesAdvanced Science, Volume 12, Issue 15, April 17, 2025.
This study develops a silk fibroin (SF) nanoparticles hydrogel targeting neurokinin 1 receptor with CP‐99994 (CP). Combining CP and SF to form stable nanoparticles while incorporating a flexible hydrogel material results in a sustained‐release ophthalmic drop formulation (SF@CP@Gel), which provides a long‐lasting ophthalmic formulation with anti ...
Bo Gong   +12 more
wiley   +1 more source

Pure All-trans Vitamin A Acetate and the Assessment of Vitamin A Potency by Spectrophotometry [PDF]

open access: bronze, 1951
J. Boldingh   +9 more
openalex   +1 more source

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