Results 1 to 10 of about 7,433 (119)

Study of the Titanium Dioxide Nanoparticles Used as UV absorber on Natural Herbal Extract Sunscreen Products [PDF]

open access: yesE3S Web of Conferences, 2022
This research focuses on the effects of UV absorber on natural herbal extracts including Wan Nga-chang (Ivory) and Wan Tan-diao containing Glycoside and Tannin with solvent prepared via the maceration method.
Wirunchit Supamas   +2 more
doaj   +1 more source

Characterization of an Oligomeric Lignin-Derived UV Absorber Produced from Hardwood Beech [PDF]

open access: yesACS Omega
Chen Qu   +5 more
doaj   +2 more sources

Optical Behaviour of Caffeine Mixed Perovskite Photoanode for Photovoltaic Application [PDF]

open access: yesPhysics Access, 2022
Halide perovskites such as methylammonium lead triiodide (CH3NH3PbI3) are attracting attention as energy-efficient light absorber materials for photovoltaic applications owing to their solution processing-power, tunable bandgap, strong absorption ...
Nicodemus Kure   +4 more
doaj   +1 more source

Synthesis and application of new mordent and disperse azo dyes based on 2,4-dihydroxybenzophenone [PDF]

open access: yesJournal of the Serbian Chemical Society, 2007
Novel mordent and disperse azo dyes were prepared by the coupling of various diazo solutions of aromatic amines with 2,4-dihydroxybenzophenone. The resultant dyes were characterized by elemental analyses as well as IR and NMR spectral studies.
Dixit Bharat C.   +2 more
doaj   +1 more source

Bioconjugation of Vegetable Oils with UV Absorbers: New Approach in Skin Photoprotection

open access: yesMolecules, 2023
We reported the tunable synthesis of new vegetable oil–UV filter bioconjugates using sea buckthorn oil (SBO) and p-methoxycinnamic acid (p-MCA) as an alternative to the common UV filter, ethylhexyl-p-methoxycinnamate (octinoxate).
Andrei Iulian Slabu   +5 more
doaj   +1 more source

Synthesis, Characterization, and Properties of Novel Aromatic UV Absorber Polyamides [PDF]

open access: yesعلوم و تکنولوژی پلیمر, 2019
Hypothesis: Aromatic polyamides are well known as a main group of high performance and heat-resistant polymers. One of the drawbacks to utilize these polymers is the difficulty in processing due to their insoluble nature in aprotic organic solvents in ...
Samal Babanzadeh   +1 more
doaj   +1 more source

UJI SPEKTRUM CAHAYA ECENG GONDOK (EICHORNIA CRASSIPES) SEBAGAI ABSORBER PADA DYE SENSITIZED SOLAR CELL (DSSC)

open access: yesJournal of Industrial Engineering and Operation Management, 2020
Abstrak – Telah dilakukan penelitian mengenai uji spectrum eceng gondok (eichornia crassipes) sebagai absorber pada DSSC. Penelitian ini bertujuan untuk mengetahui nilai absorber pada dye eceng gondok. Pengujian dilakukan menggunakan lampu halogen dengan
Ice Trianiza
doaj   +1 more source

Yellowing mechanisms of epoxy and vinyl ester resins under thermal, UV and natural aging conditions and protection methods

open access: yesPolymer Testing, 2022
Polymer resins have yellowing issue when subjected to elevated temperatures or UV exposure, which limit their applications in color-sensitive fields. This paper presents an experimental study on the yellowing mechanisms of epoxy and vinyl ester resins ...
Chao Wu   +3 more
doaj   +1 more source

Sulfur monoxide dimer chemistry as a possible source of polysulfur in the upper atmosphere of Venus

open access: yesNature Communications, 2021
Photochemistry of sulfur species in the upper Venus atmosphere is not well understood and the identity of ultraviolet (UV) absorber(s) remain unknown. Here, the authors show that sulfur monoxide dimer chemistry is a possible source of polysulfur, which ...
Joseph P. Pinto   +6 more
doaj   +1 more source

Near-ideal solar absorber with ultra-broadband from UV to MIR

open access: yesResults in Physics, 2022
Solar energy is an important path to solving today's energy and environmental crisis as a clean and renewable energy source. Near-ideal solar absorber provides potential technical support for achieving this path as an efficient solar energy harvesting ...
Lejia Wu   +4 more
doaj   +1 more source

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