Results 71 to 80 of about 55,459 (323)

Self‐Organized Growth of Catalyst‐Free Single Crystal WnO3n‐2 (n = 25) Nanowire Bundles on Si (111) via Selective He+ Ion Irradiation

open access: yesAdvanced Materials Interfaces, EarlyView.
A novel and efficient method is explored to synthesize 1D single‐crystal sub‐stoichiometric WnO3n‐2 (n = 25) nanowire bundles. The approach utilizes selective low‐energy He+ ion irradiation (27 eV) on Mo‐Ni doped WOx surface, achieving efficient catalyst‐free self‐organized growth of high aspect ratio nanowires at the temperature of 700 °C.
Maryna Bilokur   +3 more
wiley   +1 more source

Preparation and characterization of an intelligent film based on fish gelatin and Coleus scutellarioides anthocyanin to monitor the freshness of rainbow trout fish fillet

open access: yesFood Science &Nutrition, Volume 11, Issue 1, Page 379-389, January 2023., 2023
A pH‐sensitive indicator based on fish gelatin and Coleus scutellarioides anthocyanin extract (CSAE) was prepared and characterized. There was also a significant relationship between the TVB‐N content of fish fillets and the a* index of the film during the 16 hours storage period so that with the increase of TVB‐N values of the fillets during the ...
Fahimeh Hematian   +3 more
wiley   +1 more source

Aqueous Synthesis of Poly(ethylene glycol)‐Amide‐Norbornene‐Carboxylate for Modular Hydrogel Crosslinking

open access: yesAdvanced Materials Interfaces, EarlyView.
An all aqueous synthesis of poly(ethylene glycol)‐amide‐norbornene‐carboxylate (PEGaNBCA) is developed via reacting carbic anhydride with amino‐terminated PEG. PEGaNBCA is readily crosslinked into hydrogels by click chemistries. PEGaNBCA crosslinked thiol‐norbornene hydrogels are hydrolytically stable but can be rendered hydrolytically labile through ...
Nathan H. Dimmitt, Chien‐Chi Lin
wiley   +1 more source

Screening of wheat grains enriched with wall-bound phenolic compounds

open access: yesMethodsX, 2023
Phenolic compounds are dominant antioxidant factors in whole grains and are essential quality traits in future breeding programs. We proposed a robust set of methods for extraction, screening, and quantitative analysis of soluble and wall-bound (WB ...
Yi-Lin Gong, Jin-Ying Gou
doaj  

The high-field polar RX J1007.5-2017 [PDF]

open access: yes, 2012
We report optical and X-ray observations of the high-field polar RXJ1007.5-2017 performed between 1990 and 2012. It has an orbital period of 208.60 min determined from the ellipsoidal modulation of the secondary star in an extended low state.
Beuermann, K.   +4 more
core   +2 more sources

Synthesis of Bimetallic (Iron–Cobalt) Single Atom Catalysts for Electrochemical Detection of Nitrites

open access: yesAdvanced Materials Technologies, EarlyView.
A CO2 laser‐assisted solid‐state synthesis of a bimetallic single‐atom catalyst is presented. The resulting material consists of a 3D porous graphene support with iron and cobalt atoms anchored as single atoms. Through electrochemical methods, the material's efficiency is demonstrated in the sensitive and selective determination of nitrite, mimicking ...
Guillermo Tostado‐Blazquez   +5 more
wiley   +1 more source

Study on combination therapy for lung cancer through pemetrexed‐loaded mesoporous polydopamine nanoparticles

open access: yesJournal of Biomedical Materials Research Part A, Volume 111, Issue 2, Page 158-169, February 2023., 2023
Abstract Lung cancer is one of the most commonly diagnosed cancers, and surgical resection is the optimal choice for the primary lung tumor. But for the secondary lung cancer, chemotherapy and combined radiotherapy still are the main strategies. To realize the combined treatment for non‐small cell lung cancer (NSCLC), in this work, a nanoplatform based
Jian Xu   +3 more
wiley   +1 more source

Análise multicomponente simultânea por espectrofotometria de absorção molecular UV-VIS

open access: yesQuímica Nova, 1999
This review presents the evolution of simultaneous multicomponent analysis by absorption spectrophotometry in the ultraviolet and visual regions in terms of some qualitative and quantitative analysis techniques, otimization methods, as well as ...
Saldanha Teresa Cristina B.   +2 more
doaj  

Multivariate Analysis of Perfumes by Ultraviolet Spectrophotometry

open access: yesJournal of the Brazilian Chemical Society, 2015
An efficient, fast and cost-effective method for detecting adulteration in perfumes by UV spectroscopy and multivariate analysis is proposed. Classification of perfumes, either as original or fake, was accomplished with the spectroscopic data using chemometric techniques such as principal component analysis (PCA), soft independent modeling of class ...
Gomes, Clêrton L. Gomes   +5 more
openaire   +4 more sources

Wavelength‐Selective, High‐Speed, Self‐Powered Isotype Heterojunction n+‐ZnO/n‐Si Photodetector with Engineered and Tunable Spectral Response

open access: yesAdvanced Materials Technologies, EarlyView.
Wavelength‐selective ZnO/Si photodetectors, operating with no power supply. Engineering of the constituting materials converts them from white‐light sensitive to only NIR‐sensitive. When external power is applied, the wavelength selectivity of the devices can be tuned to different spectral ranges.
Michael D. Tsanakas   +7 more
wiley   +1 more source

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