Results 81 to 90 of about 167,754 (305)

When Black and White make Green: the Surprising Interplay of Structure and Pigments

CHIMIA, 2019
: The natural world is teeming with color, which originates either from the wavelength-dependent absorp- tion of light by pigments or from scattering from nanoscale structures, or both.
Tianqi Sai, Bodo D. Wilts, Alba Sicher, Ullrich Steiner, Frank Scheffold, Eric R. Dufresne   +5 more
doaj   +1 more source

Ameliorating Effect of Chloride on Nitrite Toxicity to Freshwater Invertebrates with Different Physiology: a Comparative Study Between Amphipods and Planarians [PDF]

, 2008
High nitrite concentrations in freshwater ecosystems may cause toxicity to aquatic animals. These living organisms can take nitrite up from water through their chloride cells, subsequently suffering oxidation of their respiratory pigments (hemoglobin ...
Alonso, A., Camargo, J.A.
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

Production, biological characterization, and applications of natural pigments from filamentous fungi [PDF]

Brazilian Journal of Biology
Natural dyes are gaining prominence as safer, bioactive alternatives to synthetic colorants, with microbial production offering efficient and cost-effective methods.
A. A. Alyami, A. H. Alabdalall, H. Chakroun, S. A. Aldakeel, A. M. Albarrag, E. Kotb, F. Al-Zahrani   +6 more
doaj   +1 more source

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

Leaftronics: Bio‐Fractal Scaffolds From Leaf Venation for Low‐Waste Electronics

Advanced Materials, EarlyView.
“Leaftronics” transforms naturally evolved leaf venation into quasi‐fractal scaffolds for sustainable electronics. Polymer‐infiltrated leaf skeletons can be used to fabricate ultra‐smooth, reflow‐ and thin‐film‐compatible decomposable substrates, while making the same lignocellulose networks conducting results in flexible transparent electrodes.
Rakesh Rajendran Nair, Hrisheekesh Thachoth Chandran, Karl Leo, Hans Kleemann   +3 more
wiley   +1 more source

Fabrication Technologies for Soft, Multimaterial Optical Fibers for In Vivo Diagnostics and Phototherapy, With a Focus on Extrusion Printing

Advanced Materials Technologies, EarlyView.
Soft multimaterial optical fibers integrate multiple functionalities—such as waveguiding, side emission, sensing, drug delivery or actuation—into a single filament for wearable, implantable, and tissue‐integrated devices for diagnostics and phototherapy.
Zahra Kafrashian, Jun Feng, Aránzazu del Campo   +2 more
wiley   +1 more source

Perfusion Bioreactor Culture Incorporating Mechanical Confinement Enhances Mesenchymal Stem Cell Extracellular Vesicle Production and Wound Healing Potential

Advanced Materials Technologies, EarlyView.
Scalable manufacturing challenges and limited potency remain two of the most intransigent issues limiting clinical translation of EV therapeutics. Mechanical cues can induce phenotypic changes and increased vesiculation in EV source cells without the use of extraneous reagents, chemicals, and/or cargo, thereby potentially drastically improving the ...
Emily H. Powsner, Raith Nowak, Stephanie M. Kronstadt, Nicholas H. Pirolli, Talia J. Solomon, Kristin Nikolov, William Pieper Holeman, Ian M. Smith, Kimberly M. Stroka, John P. Fisher, Steven M. Jay   +10 more
wiley   +1 more source

Cultivation conditions for pigment production by Chromobacterium violaceum [PDF]

Biotemas, 2006
Chromobacterium violaceum is a beta proteobacterium, gram-negative, facultative anaerobe, found in soil, riverbanks and waters of tropical and subtropical regions all around the world.
Regina Vasconcellos Antônio, Rozangela Curi Pedrosa, Luismar Marques Porto, Margot Érika Caris, Ana Kelly Pitlovanciv   +4 more
doaj  

Effects of Artificial Light Treatments on Growth, Mineral Composition, Physiology, and Pigment Concentration in Dieffenbachia maculata “Compacta” Plants [PDF]

, 2019
Specific wavebands may allow precise control of plant growth. However, light sources must be carefully evaluated before the large-scale use of supplemental light sources can be implemented.
Almansa Espín, Eva María, Chica Moreno, Rosa María, García Caparrós, Pedro, Lao Arenas, María Teresa   +3 more
core   +1 more source