Results 141 to 150 of about 526,297 (305)

IN VITRO Reliability of intra-oral spectrophotometer

open access: yes, 2013
Introduction: Performances of digital measuring devices of tooth color still have not been researched enough because they have recently started to be more widely used in dentistry.
Zarkova, Julija   +4 more
core  

Ferroelectric Quantum Dots for Retinomorphic In‐Sensor Computing

open access: yesAdvanced Materials, EarlyView.
This work has provided a protocol for fabricating retinomorphic phototransistors by integrating ferroelectric ligands with quantum dots. The resulting device combines ferroelectricity, optical responsiveness, and low‐power operation to enable adaptive signal amplification and high recognition accuracy under low‐light conditions, while supporting ...
Tingyu Long   +26 more
wiley   +1 more source

Water Permeates and Plasticizes Amorphous Carbon Dots: Unraveling the Inner Accessibility of the Nanoparticles by Glass Transition Studies

open access: yesAdvanced Materials, EarlyView.
The water permeability of amorphous carbon dots (CDs) is demonstrated by investigating their plasticization. Novel polyamide‐based and amorphous nanoparticles are synthesized by controlling their inner packing density. Water plasticization is evidenced by the decrease of the CDs glass transition temperature with increasing the hydration degree.
Elisa Sturabotti   +8 more
wiley   +1 more source

UJI KANDUNGAN FORMALIN PADA BUAH PEPAYA (Carica papaya L.) DAN BUAH NANAS (Ananas comosus L.) YANG DI JUAL DILINGKUNGAN UIN RADEN FATAH PALEMBANG DENGAN METODE SPEKTROFOTOMETRI

open access: yesJurnal Biota, 2016
Fruit is a natural product that has benefits such as giving nutrient for society, incoming source, pervading labor if it is afforded intensively. The purpose of this research is to measure whether there is formalin or not in papaya and pineapple which ...
Agustiani Dumeva Putri   +2 more
doaj  

Spectrophotometers [PDF]

open access: yesNature Biotechnology, 1987
openaire   +1 more source

High Light Utilization and Color Rendering in Vacuum‐Deposited Semitransparent Perovskite Solar Cells

open access: yesAdvanced Materials, EarlyView.
In this work, low bandgap (≈1.55 eV) semitransparent perovskite solar cells (ST‐PSCs) having thin (thickness < ≈100 nm) perovskite layers and transparent conductive oxide‐based rear electrodes are fabricated using vacuum‐deposition methods. Two different ST‐PSCs demonstrated a high light utilization efficiency value of 4.2 (PCE: 9.26% and AVT: 45.3 ...
Abhyuday Paliwal   +9 more
wiley   +1 more source

Science Lab Spectrophotometer

open access: yes
Professor Edward Morris using a spectrophotometer, an instrument which measures the amount of light of a specified wavelength which passes through a medium, in a Penn Hall science ...

core  

Double beam UV/Vis spectrophotometer

open access: yes, 2011
This simulation shows how a spectrophotometer works. Besides that, it shows the function of each component of the equipment. It also shows how to choose the best component depending on the sample that will be analyzedComponente Curricular::Educação ...
Chasteen, Thomas G.
core  

POM‐Based Water Splitting Catalyst Under Acid Conditions Driven by Its Assembly on Carbon Nanotubes

open access: yesAdvanced Materials, EarlyView.
A newly‐engineered POM‐based electrocatalyst incorporating non‐innocent counter cations exhibits fast kinetics for either the OER or HER under strongly acidic conditions (1 m H2SO4), depending on whether it is assembled on carbon nanotubes (1@CNT) or physically mixed with them (1/CNT). In water‐splitting tests using a two‐electrode setup, these systems
Eugenia P. Quirós‐Díez   +8 more
wiley   +1 more source

Development of a 3D-Printed Photometric Device for the Determination of Urea in Milk Samples. [PDF]

open access: yesACS Omega
Dos Santos Trindade N   +6 more
europepmc   +1 more source

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