Results 31 to 40 of about 100,051,810 (181)

The Photochemistry of 2,3-pentanedione

open access: yes, 1971
When excited in the region 365-436 nm in the gas phase, 2,3-pentanedione is shown to emit fluorescence and phosphorescence. The absolute emission yields have been determined and the radiationless processes removing the excited singlet and triplet states
Jackson, Anthony William
core   +1 more source

High Yield Synthesis of Curcumin and Symmetric Curcuminoids: A “Click” and “Unclick” Chemistry Approach

open access: yesMolecules, 2022
The worldwide known and employed spice of Asian origin, turmeric, receives significant attention due to its numerous purported medicinal properties.
Marco A. Obregón-Mendoza   +4 more
doaj   +1 more source

Chemical Composition, Nutritional Value, and Acceptance of Nut Bars with the Addition of Edible Insect Powder

open access: yesMolecules, 2022
Six types of nut-based bars with the addition of edible insect flour were obtained. Flours made from three different insects (Tenebrio molitor L., Acheta domesticus L., Alphitobius diaperinus P.) were used at two different additive levels (15% and 30 ...
Stanisław Kowalski   +9 more
doaj   +1 more source

Study on the Flavor Compounds of Fo Tiao Qiang under Different Thawing Methods Based on GC–IMS and Electronic Tongue Technology

open access: yesFoods, 2022
“Fo Tiao Qiang” is a famous dish with Chinese characteristics. It is delicious, rich in materials, and high in nutritional value. Through physical and chemical analysis, electronic tongue, gas chromatography–ion mobility spectroscopy, and other ...
Ruirong Lin   +4 more
doaj   +1 more source

3D Printing of Soft Robotic Systems: Advances in Fabrication Strategies and Future Trends

open access: yesAdvanced Robotics Research, Volume 2, Issue 5, October 2026.
Collectively, this review systematically examines 3D‐printed soft robotics, encompassing material selections, function integration, and manufacturing methodologies. Meanwhile, fabrication strategies are analyzed in order of increasing complexity, highlighting persistent challenges with proposed solutions.
Changjiang Liu   +5 more
wiley   +1 more source

Exposures and Health Effects of Diacetyl and 2,3-Pentanedione in a Coffee Processing Facility [PDF]

open access: yes
Diacetyl and 2,3-pentanedione are alpha-diketones that are generated during the coffee roasting process and have been shown to be related to respiratory symptoms, abnormal lung function, and in rare cases, an irreversible disease called obliterative ...
Jane Whitelaw (19582717)   +2 more
core   +2 more sources

Vicinal Difunctionalization of Alkenes With Ketones and 1,2‐Bis(phenylsulfonyl)ethylene With One‐Electron Oxidation: A Three‐Component Route to Functionalized Vinyl Sulfones

open access: yesChemistryEurope, Volume 4, Issue 10, October 2026.
Three‐component coupling reactions of ketones, alkenes, and 1,2‐bis(phenylsulfonyl)ethylene (BPSE) proceed via one‐electron oxidation with K2S2O8 or Mn(OAc)3. Oxidative deprotonation of enols generates α‐keto radicals that undergo sequential alkene addition and BPSE trapping.
Lin‐Wei Pan   +4 more
wiley   +1 more source

Forming and Microstructure Control of Ceramics by Electrophoretic Deposition (EPD)

open access: yesKONA Powder and Particle Journal, 2014
Electrophoretic deposition (EPD) is one of the colloidal processes during in ceramic production and has gained significant interest because of the high versatility of its use with different materials including ...
Yoshio Sakka, Tetsuo Uchikoshi
doaj   +1 more source

Synthesis of Curcumin Analogs Targeting Androgen Receptor for the Selective Inhibition of Castration‐Resistant Prostate Cancer Cells

open access: yesChemical Biology &Drug Design, Volume 108, Issue 4, October 2026.
This study identified several compounds (A2, A3, P3) with high inhibitory activity and selectivity against prostate cancer cells by targeting AR‐FL and AR‐V7. These three compounds are promising new candidates for prostate cancer drug discovery. ABSTRACT In the present study, a series of curcumin analogs (A1–P3) were designed and synthesized for the ...
Manman Huang   +6 more
wiley   +1 more source

An Unexpected Switch in the Modulation of AI-2-Based Quorum Sensing Discovered through Synthetic 4,5-Dihydroxy-2,3-pentanedione Analogues

open access: yes, 2016
An Unexpected Switch in the Modulation of AI-2-Based Quorum Sensing Discovered through Synthetic 4,5-Dihydroxy-2,3-pentanedione ...
Junguk Park (2161186)   +3 more
core   +1 more source

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