Results 81 to 90 of about 352,350 (315)

Fundamental Molecules of Life are Pigments which Arose and Evolved to Dissipate the Solar Spectrum

, 2014
The driving force behind the origin and evolution of life has been the thermodynamic imperative of increasing the entropy production of the biosphere through increasing the global solar photon dissipation rate.
Michaelian, Karo, Simeonov, Aleksandar
core   +2 more sources

Freeform Manufacturing of Plant‐Based Structural Colors for Scalable Photonic and Mechanochromic Devices

Advanced Materials, EarlyView.
A green, freeform manufacturing approach that utilizes robust aqueous two‐phase systems to create intricate and scalable photonic structures and non‐planar mechanochromic hydrogel actuators from plant‐based hydroxypropyl cellulose. This approach broadens the structural possibilities of sustainable photonic devices and mechanochromic systems, offering ...
Xiao Song, Peiqi Niu, Wenxi Gu, Chun Lam Clement Chan, Jiuhong Yi, Xu Liu, Peng Tan, Chon In Haydn Cheong, Qingwen Guan, Dan Fang, Bingpu Zhou, Zi Liang Wu, Ji Liu, Yan Yan Shery Huang, Iek Man Lei   +14 more
wiley   +1 more source

Ca–Fe oxide granules as potential phosphate barrier material for critical source areas: a laboratory study of P retention and release

Agricultural and Food Science, 2012
Phosphate barriers may mitigate dissolved P losses from critical source areas. We studied P retention of industrially produced Ca–Fe oxide as potential P barrier material.
Risto Uusitalo, Petri Ekholm, Jouni Lehtoranta, Aleksandar Klimeski, Olli Konstari, Riku Lehtonen, Eila Turtola   +6 more
doaj  

STUDIES ON PLANT BILE PIGMENTS [PDF]

, 1983
The reaction of bilirubins with aromatic diazonium salts in alcoholic solvents leads to an equimolar mixture of two types of products. One is the well-known 9-azopyrromethenone.
Kufer, Werner, Scheer, Hugo
core  

Multifunctional Bio‐Based Packaging for Perishable Foods: Structural Design, Scalable Fabrication, and Versatile Applications

Advanced Materials, EarlyView.
An overview of design principles and scalable fabrication strategies for multifunctional bio‐based packaging. Radiative cooling films, modified‐atmosphere films/membranes, active antimicrobial/antioxidant platforms, intelligent optical/electrochemical labels, and superhydrophobic surfaces are co‐engineered from material chemistry to mesoscale structure
Lei Zhang, Jiaqi Zhang, Mei Cui, Wei Qi, Renliang Huang, Rongxin Su, Kai Zhang   +6 more
wiley   +1 more source

Artificial photosynthetic reaction centers coupled to light-harvesting antennas

, 2010
We analyze a theoretical model for energy and electron transfer in an artificial photosynthetic system. The photosystem consists of a molecular triad (i.e., with a donor, a photosensitive unit, and an acceptor) coupled to four accessory light-harvesting ...
Ghosh, Pulak Kumar, Nori, Franco, Smirnov, Anatoly Yu.   +2 more
core   +1 more source

Betalains in some species of the amaranthaceae family: A review [PDF]

, 2018
Natural pigments are largely distributed in the plant kingdom. They belong to diverse groups, with distinct biochemical pathways. Betalains with colours that range from yellow to red-violet can de divided into two main subgroups: betaxanthins and ...
Ali, Barua, Bhujbal, Bucur, Bussmann, Böhm, Clemente, Corio-Costet, Dinda, Guo, Križnic, Kumar, Liu, Malomo, Mujica, Mulinacci, Narayanan, Nidavani, Pavoković, Pietrzkowski, Popa, Ramachandran, Rehman, Rub, Salvador, Saqib, Saritha, Shao, Surse, Telagari, Vendruscolo, Yaacob   +31 more
core   +2 more sources

Hierarchically Engineered Multi‐Enzyme Nanoreactors for in vitro Drug Biosynthesis and Pathway Transplantation Into Cells

Advanced Materials, EarlyView.
A hierarchically structured metal–organic framework (eMIL) is shown to host the complete six‐enzyme biosynthesis pathway for the anti‐cancer pigment violacein, reshaping reaction dynamics and multiplying in vitro yields. eMIL nanoreactors deliver this reconstituted bacterial multi‐protein system into mammalian cells, where cell‐derived substrates and ...
Ainur Sharip, Somayah S. Qutub, Manar M. Farooqui, Walaa Baslyman, Nida Khalfay, Lukman O. Alimi, Patricia Lopez Sanchez, Lingyun Zhao, Milena Chernyshevskaia, Giovanni Colombo, Niveen M. Khashab, Stefan T. Arold, Raik Grünberg   +12 more
wiley   +1 more source

Spectroscopic approaches for structural analysis of extracted chitosan generated from chitin deacetylated for escalated periods

BMC Chemistry
A conventional chemical method was applied for the extraction of chitosan (CH) from shrimp shell wastes (SSWs) in three stages: (1) Demineralization: SSWs were treated with HCl to remove minerals. (2) Deproteinization: NaOH was used to eliminate proteins
S. N. Ghanem, M. I. Marzouk, M. E. Tawfik, S. B. Eskander   +3 more
doaj   +1 more source

Development of a space stable thermal control coatings for use in large space vehicles [PDF]

The preparation and evaluation of zinc orthotitanate and of several new pigments and the environmental testing and evaluation of these pigments and of coatings made from them constitute the bulk of the work accomplished.
Ashford, N. A., Gilligan, J. E., Harada, Y., Leas, R. M.   +3 more
core   +1 more source