Results 51 to 60 of about 61,601 (258)

Pigment compositions in Siberian early Upper Paleolithic complexes

open access: yesUISPP Journal, 2021
Cultural assemblages associated with archaic forms of Homo sapiens in Siberia appeared around 40 000 – 50 000 years BP, revealing the evidence of the modern behavioural complex and use of various pigments.
Liudmila Lbova
doaj   +1 more source

Electrically Coded Retinomorphic Spectrophotodetector

open access: yesAdvanced Materials, EarlyView.
Self‐powered retinomorphic pyro‐photodetector is demonstrated that avoids machine‐learning post‐processing and covers 365–940 nm. Electrostatic balancing of built‐in potential produces an electrical wavelength code, delivering <3 nm wavelength decoding accuracy with ∼46 µs response.
Mohit Kumar, Hyunmin Dang, Hyungtak Seo
wiley   +1 more source

Halloysite and Laponite Hybrid Pigments Synthesis with Copper Chlorophyll

open access: yesApplied Sciences, 2021
Sustainable and green materials have been studied in dye and pigment productions to reduce their environment impacts from being produced and applied. Although natural dyes are an excellent choice to move from agrowaste, some improvements must be made ...
Bàrbara Micó-Vicent   +3 more
doaj   +1 more source

Polymeric Sorbents as Energy‐Efficient Alternative to Cryogenic Distillation for Light Hydrocarbon Purification

open access: yesAdvanced Materials, EarlyView.
The transition from cryogenic distillation to polymeric sorbents for light hydrocarbon purification is crucial for energy and environmental sustainability. The polymeric sorbents are engineered to separate gas mixtures based on their specific properties.
Kelechi Festus   +9 more
wiley   +1 more source

A review on betacyanins and anthocyanins as water‑soluble pigments in nanotechnology‑based natural cosmeceutical formulations

open access: yesLife Sciences, Medicine and Biomedicine
Many cosmetic products, such as lipsticks, often use synthetic dyes that have raised safety concerns. As a result, natural pigments with antioxidant properties are preferred in cosmeceutical formulations as safer alternatives.
Nur Afizah Yusoff   +4 more
doaj   +1 more source

Negotiating in a Foreign Land: Understanding the Curious Interactions Between Intracellular Mitochondria and Internalized Nanoparticles

open access: yesAdvanced Materials Interfaces, EarlyView.
Therapeutic nano‐drug delivery systems interact with cellular mitochondria in a multitude of ways. While the complexity of such interactions disrupts the mitochondrial electron transport chain and increases reactive oxygen species production, thereby contributing to nanoparticle toxicity, they also present unique theranostic opportunities in diseases ...
Sourav Bhattacharjee
wiley   +1 more source

Aggregation‐Controlled Vat Dyeing of Meta‐Aramid Fibers: Mechanistic Insights and Suppression of Surface Dye Deposition

open access: yesAdvanced Materials Interfaces, EarlyView.
Supramolecular aggregation governs the interfacial adsorption, diffusion, and fixation of anthraquinone‐based vat dyes in meta‐aramid fibers. By correlating reduction chemistry, aggregate formation, and fiber microstructure, a multiscale mechanism for aggregation‐controlled dyeing is established, providing an effective strategy to suppress surface dye ...
Jisiyuan Qin   +8 more
wiley   +1 more source

Stability of red pigments from purple sweetpotato (Ipomea batatas (L.), Lam) and other five natural red pigments

open access: yes浙江大学学报. 农业与生命科学版, 2001
Stable effects were determined of red pigments from purple sweetpotato and other five plant natural red pigments from purple grape, purple perilla. black rice and black soybean on such factors as light, heat, minerals and food additives. The red pigments
LU Guo-quan, LI Xiu-ling
doaj   +1 more source

Production of Natural Pigments from Monascus ruber by Solid State Fermentation of Broken Rice and its Application as Colorants of Some Dairy Products [PDF]

open access: yesJournal of Food and Dairy Sciences, 2017
The present study was aimed to maximize the production of natural pigments from Monascus ruber Went AUMC 5705 by solid state fermentation of broken rice to be a safe and healthy substitute of the harmful chemical dyes in the coloring of some flavored ...
T. Mohamed, H. Abdel-Raheam, Nanis Gomah
doaj   +1 more source

Extrusion Bioprinting for Wound Healing: Innovations in Functionalized Bioinks and Bioprinting Technology

open access: yesAdvanced Materials Technologies, EarlyView.
Extrusion‐based bioprinting (EBB) has emerged as a versatile biofabrication platform capable of precisely depositing bioinks composed of biomaterials, cells, and bioactive agents to generate patient‐specific, biomimetic skin constructs. This paper presents a state‐of‐the‐art and forward‐looking overview of EBB for wound healing, encompassing printing ...
Hien‐Phuong Le   +4 more
wiley   +1 more source

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