Results 41 to 50 of about 3,059,614 (345)

Bio-Preparation and Regulation of Pyrrole Structure Nano-Pigment Based on Biomimetic Membrane

open access: yesNanomaterials, 2019
Microbial pigments, regarded as the most potential biomass pigments, have lately attracted increasing attention in textile dyeing due to their sustainability and cleaner production.
Jixian Gong   +5 more
doaj   +1 more source

Brought to you courtesy of the red, white, and blue–pigments of nontuberculous mycobacteria

open access: yesAIMS Microbiology, 2020
Pigments are chromophores naturally synthesized by animals, plants, and microorganisms, as well as produced synthetically for a wide variety of industries such as food, pharmaceuticals, and textiles.
Tru Tran   +4 more
doaj   +1 more source

Nonphotosynthetic Pigments as Potential Biosignatures [PDF]

open access: yesAstrobiology 15(5): 341-361 (2015), 2015
Previous work on possible surface reflectance biosignatures for Earth-like planets has typically focused on analogues to spectral features produced by photosynthetic organisms on Earth, such as the vegetation red edge. Although oxygenic photosynthesis, facilitated by pigments evolved to capture photons, is the dominant metabolism on our planet ...
arxiv   +1 more source

Evidence of late Quaternary environmental change in a continental east Antarctic lake from lacustrine sedimentary pigment distributions [PDF]

open access: yes, 2005
A sediment core from Progress Lake, one of the oldest lacustrine sequences in East Antarctica, contains distinct zones dating from a previous interglacial (most likely Marine Isotope Stage 5e, c.
Hodgson, D A, Keely, B J, Squier, A H
core   +2 more sources

Types and Distribution of Bioactive Polyunsaturated Aldehydes in a Gradient from Mesotrophic to OligotrophicWaters in the Alborán Sea (Western Mediterranean) [PDF]

open access: yes, 2020
Polyunsaturated aldehydes (PUAs) are bioactive molecules suggested as chemical defenses and infochemicals. In marine coastal habitats, diatoms reach high PUA production levels during bloom episodes.
Bartual Magro, Ana   +11 more
core   +1 more source

On the stability of mediaeval inorganic pigments: a literature review of the effect of climate, material selection, biological activity, analysis and conservation treatments

open access: yesHeritage Science, 2017
This review is to be considered part of the development of the MEMORI dosimeter, to evaluate the impact of climate (relative humidity, temperature, illumination, etc., including volatile organic compounds) on moveable objects.
A. Coccato, L. Moens, P. Vandenabeele
semanticscholar   +1 more source

Multiple Roles of Photosynthetic and Sunscreen Pigments in Cyanobacteria Focusing on the Oxidative Stress

open access: yesMetabolites, 2013
Cyanobacteria have two types of sunscreen pigments, scytonemin and mycosporine-like amino acids (MAAs). These secondary metabolites are thought to play multiple roles against several environmental stresses such as UV radiation and desiccation.
Seiichi Matsugo   +2 more
doaj   +1 more source

A non-linear irreversible thermodynamic perspective on organic pigment proliferation and biological evolution [PDF]

open access: yesJ. Phys.: Conf. Ser. 475 012010, 2013, 2013
The most important thermodynamic work performed by life today is the dissipation of the solar photon flux into heat through organic pigments in water. From this thermodynamic perspective, biological evolution is thus just the dispersal of organic pigments and water throughout Earth's surface, while adjusting the gases of Earth's atmosphere to allow the
arxiv   +1 more source

Investigation of dyeing based on pandanus amaryllifolius for superhydrophobic coating in cotton-polyester blended in textile application [PDF]

open access: yes, 2020
Natural dyes are derived from natural resources. Colouring materials obtained from natural resources of plant, animal, mineral, and microbial origins were used for colouration of various textile materials.
Chew, Gin Yan   +3 more
core  

Abundance of small individuals influences the effectiveness of processing techniques for deep-sea nematodes [PDF]

open access: yes, 2010
Nematodes are the most abundant metazoans of deep-sea benthic communities, but knowledge of their distribution is limited relative to larger organisms.
Berkenbusch, K.   +4 more
core   +2 more sources

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