Results 51 to 60 of about 15,268 (209)

Getting the Big Ones to Pack: Crystal Structure of Vitamin K2 With a Chaperone

Chemistry – A European Journal, EarlyView.
A method for obtaining co‐crystals of medium‐size organic molecules and ‐tetrakis(2‐fluoro‐4‐methoxyphenyl)adamantane (TFM) as chaperone was developed. This method yielded a high‐resolution x‐ray crystal structure of menaquinone MK‐4 (vitamin K2), in which layers of chaperone and vitamin guest molecules are found.
Jan Hartenfels, Greta Lília Runge‐Seither, Tim Berking, Johanna Osterbrink, Carsten Wolf, Clemens Richert   +5 more
wiley   +1 more source

The Speciated isoprene emission model with the MEGAN algorithm for China (SieMAC) [PDF]

Geoscientific Model Development
Isoprene is the dominant non-methane Volatile Organic Compound (VOC) emitted from terrestrial ecosystems and plays an important role in ozone chemistry. Understanding isoprene emissions is critical for controlling air pollution. The Model of Emissions of
S. Xi, Y. Wang, X. Yuan, Z. Feng, F. Zhao, Y. Zhang, X. Wang   +6 more
doaj   +1 more source

Review of phytochemical and antioxidant properties of Ethiopian medicinal plants

JSFA reports, EarlyView.
Abstract Ethiopia possesses a rich ethnobotanical heritage and diverse medicinal flora that play an important role in traditional healthcare. Many Ethiopian medicinal plants contain bioactive phytochemicals with potential antioxidant properties. This capital of indigenous knowledge has contributed to the documentation of different medicinal plants that
Endalamaw Yihune, Amare Bitew Mekonnen, Getahun Yemata   +2 more
wiley   +1 more source

From nature to nanoscale: advances, challenges, and preclinical translation of nanofiber drug delivery systems containing plant‐derived active ingredients

Journal of the Science of Food and Agriculture, EarlyView.
Abstract Since the early 1960s, nanotechnology has been a critical area of science, allowing for the development of sophisticated nanomaterials. Nanofibers, one of the most widely used nanotechnological drug delivery systems, have emerged as a highly versatile platform within modern pharmaceutical sciences.
Heybet Kerem Polat, Yasin Turanlı, Nihat Kurt, Sefa Gözcü, Emre Tunçel, Hilal Bacanak, Eren Aytekin, Sedat Ünal   +7 more
wiley   +1 more source

Chemical Ionization Mass Spectrometry: Fundamental Principles, Diverse Applications, and the Latest Technological Frontiers

Mass Spectrometry Reviews, EarlyView.
ABSTRACT The review examines the evolution of chemical ionization mass spectrometry (CI‐MS), a technique developed in 1966 by Field and Munson. CI is a soft‐ionization method that produces more intense molecular ions with less fragmentation than electron ionization (EI).
Malvika Dutt, Adriana Arigò, Giorgio Famiglini, Pierangela Palma, Achille Cappiello   +4 more
wiley   +1 more source

Influence of crosslinker on the properties of terpene‐based poly(high internal phase emulsion)s

Polymer International, EarlyView.
Myrcene was polymerized and crosslinked with hydrophilic monomeric and oligomeric dimethacrylates within high internal phase emulsions to produce hierarchically porous bio‐based poly(high internal phase emulsion)s with tuned morphology and mechanical properties.
Rumeysa Beyaz, Stanko Kramer, Burcu Kekevi, E. Hilal Mert, Irena Pulko, Peter Krajnc   +5 more
wiley   +1 more source

The production of isoprene from cellulose using recombinant Clostridium cellulolyticum strains expressing isoprene synthase

MicrobiologyOpen, 2020
Isoprene is an important bulk chemical which is mostly derived from fossil fuels. It is used primarily for the production of synthetic rubber. Sustainable, biotechnology‐based alternatives for the production of isoprene rely on the fermentation of sugars
Christian Janke, Stefan Gaida, Stefan Jennewein   +2 more
doaj   +1 more source

Effects of light and temperature on isoprene emission at different leaf developmental stages of eschweilera coriacea in central Amazon [PDF]

Acta Amazonica, 2014
Isoprene emission from plants accounts for about one third of annual global volatile organic compound emissions. The largest source of isoprene for the global atmosphere is the Amazon Basin. This study aimed to identify and quantify the isoprene emission
Eliane Gomes Alves, Peter Harley, José Francisco de C. Gonçalves, Carlos Eduardo da Silva Moura, Kolby Jardine   +4 more
doaj   +1 more source

Robust β‐myrcene block copolymer elastomeric vitrimers

Polymer International, EarlyView.
Myrcene‐based vitrimeric elastomers were compared: statistical (poly(styrene‐stat‐myrcene‐stat‐AAEMA)] versus ‘hard–soft’ diblock (poly(styrene)‐block‐poly(myrcene‐co‐AAEMA)). The diblock's ability to anchor the glassy poly(styrene) blocks in a self‐assembled microstructure was effective – leading to four times higher tensile stress and ten times ...
Chong Yang Du, Farhad Asempour, Milan Marić   +2 more
wiley   +1 more source

Leaf phenology as one important driver of seasonal changes in isoprene emissions in central Amazonia [PDF]

Biogeosciences, 2018
Isoprene fluxes vary seasonally with changes in environmental factors (e.g., solar radiation and temperature) and biological factors (e.g., leaf phenology).
E. G. Alves, J. Tóta, A. Turnipseed, A. B. Guenther, J. O. W. Vega Bustillos, R. A. Santana, G. G. Cirino, J. V. Tavares, A. P. Lopes, B. W. Nelson, R. A. de Souza, D. Gu, T. Stavrakou, D. K. Adams, J. Wu, S. Saleska, A. O. Manzi   +16 more
doaj   +1 more source