Results 81 to 90 of about 3,059,614 (345)

Seaweed-Based Molecules and Their Potential Biological Activities: An Eco-Sustainable Cosmetics

Molecules, 2021
Amongst the countless marine organisms, seaweeds are considered as one of the richest sources of biologically active ingredients having powerful biological activities.
Haresh S. Kalasariya, V. Yadav, K. Yadav, V. Tirth, A. Algahtani, S. Islam, N. Gupta, Byong-hun Jeon   +7 more
semanticscholar   +1 more source

Atomistic study of energy funneling in the light-harvesting complex of green sulfur bacteria [PDF]

J. Am. Chem. Soc., 2014, 136 (5), pp 2048-2057, 2013
Phototrophic organisms such as plants, photosynthetic bacteria and algae use microscopic complexes of pigment molecules to absorb sunlight. Within the light-harvesting complexes, which frequently have several functional and structural subunits, the energy is transferred in the form of molecular excitations with very high efficiency.
arxiv   +1 more source

Biliproteins [PDF]

, 1981
Biliproteins, covalently bonded complexes of proteins and bile pigments, serve as light-harvesting pigments in photosynthesis and light-sensory pigments of photosynthetic organisms. Recent developments in the biochemistry and biophysics of these pigments
Scheer, Hugo
core   +1 more source

Boundaries of photosynthesis: adaptations of carbon fixation in extreme environments

FEBS Open Bio, EarlyView.
Photosynthesis faces challenges from environmental extremes of temperature, pH, and salinity, limiting gas diffusion, modifying membrane fluidity, and destabilizing photochemical and biochemical reactions. Photosynthetic organisms have evolved unique adaptations overcoming these stresses and maintaining their photosynthetic activity.
Pere Aguiló‐Nicolau, Concepción Iñiguez, Sebastià Capó‐Bauçà, Jeroni Galmés   +3 more
wiley   +1 more source

Carotenoids Functionality, Sources, and Processing by Supercritical Technology: A Review

Journal of Chemistry, 2016
Carotenoid is a group of pigments naturally present in vegetal raw materials that have biological properties. These pigments have been used mainly in food, pharmaceutical, and cosmetic industries.
Natália Mezzomo, Sandra R. S. Ferreira
doaj   +1 more source

Early evolution of purple retinal pigments on Earth and implications for exoplanet biosignatures

, 2018
We propose that retinal-based phototrophy arose early in the evolution of life on Earth, profoundly impacting the development of photosynthesis and creating implications for the search for life beyond our planet.
DasSarma, Shiladitya, Schwieterman, Edward W.   +1 more
core   +1 more source

Bioresorbable and Wireless Rechargeable Implanted Na‐ion Battery for Temporary Medical Devices

Advanced Functional Materials, EarlyView.
An all‐solid‐state bioresorbable Na‐ion battery is developed, composed entirely of bio‐eliminable materials. In vivo and ex vivo tests confirmed harmless disintegration of this implanted battery. Lifetime of the implanted battery can be precisely controlled by adjusting the dissolvable encapsulation layer's thickness.
Vedi Kuyil Azhagan Muniraj, Bincy Lathakumary Vijayan, Hussien Hammoud, Roger Delattre, Marc Ramuz, Eve Djenizian, Eleonora Vandini, Daniela Giuliani, Thierry Djenizian   +8 more
wiley   +1 more source

Archaea Carotenoids: Natural Pigments with Unexplored Innovative Potential

Marine Drugs, 2022
For more than 40 years, marine microorganisms have raised great interest because of their major ecological function and their numerous applications for biotechnology and pharmacology.
Antoine Grivard, Isabelle Goubet, Luiz Miranda de Souza Duarte Filho, Valérie Thiéry, Sylvie Chevalier, Raimundo Gonçalves de Oliveira-Junior, Noureddine El Aouad, Jackson Roberto Guedes da Silva Almeida, Przemysław Sitarek, Lucindo José Quintans-Junior, Raphaël Grougnet, Hélène Agogué, Laurent Picot   +12 more
doaj   +1 more source

Color changes upon cooling of Lepidoptera scales containing photonic nanoarchitectures, and a method for identifying the changes [PDF]

, 2013
The effects produced by the condensation of water vapor from the environment in the various intricate nanoarchitectures occurring in the wing scales of several Lepidoptera species were investigated by controlled cooling (from 23° C, room temperature to
András Kun, Berthier S, Berthier S, István Tamáska, Joannopoulos JD, Kandlikar SG, Kinoshita S, Kinoshita S, Kristensen NP, Krisztién Kértész, Lászlo Péter Biró, Nijhout HF, Oliver JC, Scoble MJ, ShenHorn Yen, Zofia Vértesy, Zollinger H, Zsolt Bálint   +17 more
core   +1 more source

Enhancing Optoelectronic Properties in Phthalocyanine‐Based SURMOFs: Synthesis of ABAB Linkers by Avoiding Statistical Condensation with Tailored Building Blocks

Advanced Functional Materials, EarlyView.
A novel phthalocyanine (PC)‐based metal–organic framework (MOFs) is synthesized using ditopic PC linkers obtained through regioselective statistical condensation. The resulting MOF exhibits significant improvements in electronic absorption, thereby enhancing the material's performance in light harvesting and energy conversion.
Lukas S. Langer, Mareen Stahlberger, Xiaojing Liu, Yi Luo, Niklas E. Häußermann, Puja Singhvi, Yidong Liu, Olaf Fuhr, Martin Nieger, Lars Heinke, Thomas Heine, Christof Wöll, Stefan Bräse   +12 more
wiley   +1 more source