Results 151 to 160 of about 243,834 (314)
Bio‐inspired nanophotonics: Structural color, chirality, and resonance metasurfaces
A butterfly‐wing‐inspired anisotropic plasmonic flatband resonant metasurface. Insets, photo of the butterfly, Sasakia charonda, and the SEM image of its wing scale (above); the SEM image of the metasurface (below). Abstract The dazzling colors of butterfly wings and hummingbird feathers are not painted with pigments, but crafted by nature's invisible ...
Weihan Liu, Yao Liang, Din Ping Tsai
wiley +1 more source
Mini‐Review: Angular Scattering and Directional Effects in Tip‐Enhanced Raman Spectroscopy
Mini‐review: Angular scattering and directional effects in tip‐enhanced Raman spectroscopy. Felix Schneider, David Baschnagel, Tim Parker, Yang Zhao, Alfred J. Meixner*, Dai Zhang*. This mini‐review examines angular scattering and directional effects in tip‐enhanced Raman spectroscopy (TERS), emphasizing their importance for quantitative interpretation
Felix Schneider +5 more
wiley +1 more source
We report the development and use of a transmission Raman spectroscopy (TRS) system for a more accurate but nonintrusive way of authentication of API in coated HCQ tablets which otherwise is not possible using the backscattered (BS) configuration of Raman spectroscopy. The coating interference is found to be almost zero in case of the TRS and a greater
Vijay Kumar +5 more
wiley +1 more source
Abstract Background Fresh‐cut pineapple is increasingly consumed for its convenience and nutritional value; however, minimal processing accelerates quality deterioration and microbial growth, resulting in substantial postharvest losses. Gamma irradiation is recognized as a nonthermal preservation technique, but limited information exists regarding its ...
Maraj Miah +6 more
wiley +1 more source
Abstract Background This study evaluated the influence of four drying techniques—freeze drying (FZD), microwave drying (MCD), oven drying (OVD), and sun drying (SUD)—on the bioactive, nutritional, and physical properties of turmeric. Using standard analytical procedures, the samples were examined for antioxidant activity (DPPH and ABTS assays), total ...
Eric Antiri Aforo +6 more
wiley +1 more source
Effects of genotype and environment on the physiochemical properties of Canadian oat varieties
Abstract BACKGROUND The relationship between oat grain composition and physical attributes as influenced by oat genotype and Canadian growing environments was investigated. Thirty Canadian oat (Avena sativa L.) genotypes, grown in three Canadian growing locations (Brandon, Manitoba; Portage la Prairie, Manitoba; and Lacombe, Alberta) over 2 consecutive
Vanessa Alexander +4 more
wiley +1 more source
Abstract BACKGROUND Shrimp is among the most perishable seafood commodities, and its freshness is still largely assessed through time‐consuming laboratory methods. pH‐responsive colorimetric films have received growing attention as they allow visual, real‐time quality monitoring without specialized equipment.
Tuncay Gümüş +2 more
wiley +1 more source
Aberrant birds: five cases of progressive graying in southern brazil
The plumage of birds can exhibit various chromatic aberrations, with progressive graying being one example. This condition is characterized by the presence of randomly scattered white feathers, giving the bird a mottled appearance.
Fernanda Machado-Teixeira +1 more
doaj +1 more source
Abstract BACKGROUND Climate change has driven the expansion of viticulture in high‐altitude tropical regions. The dynamics of grape ripening and its metabolic profile are influenced by climatic conditions. This study aimed to identify the optimal harvest period for Cabernet Sauvignon grapes cultivated in an emerging Brazilian high‐altitude region using
Laura O. Lago +6 more
wiley +1 more source
Abstract BACKGROUND The control of fungal diseases in organic fruit production remains a major challenge due to the limited availability of authorized phytosanitary tools. This study evaluates the efficacy of two antagonistic yeasts – Metschnikowia pulcherrima L672 and Hanseniaspora uvarum L793 – in organic peach (Prunus persica) and plum (Prunus ...
Paula Tejero +5 more
wiley +1 more source

