Results 71 to 80 of about 76,516 (303)

Plant sesquiterpene lactones

Philosophical Transactions of the Royal Society B: Biological Sciences
Sesquiterpene lactones (STLs) are a prominent group of plant secondary metabolites predominantly found in the Asteraceae family and have multiple ecological roles and medicinal applications. This review describes the evolutionary and ecological significance of STLs, highlighting their roles in plant defence mechanisms against herbivory and as ...
Olivia Agatha, Daniela Mutwil-Anderwald, Jhing Yein Tan, Marek Mutwil   +3 more
openaire   +4 more sources

Mechanically Robust Biodegradable Stents With Theragenerative Vascular Responses via Combined 3D Printing and Janus Nanoengineering

Advanced Science, EarlyView.
This work introduces a theragenerative 3D‐printed biodegradable stent with Janus nanoarchitecture for spatially controlled vascular healing. A luminal tantalum ion–implanted surface accelerates endothelialization and hemocompatibility, while an abluminal sirolimus/poly‐L‐lactic acid–tantalum layer provides sustained drug release and suppresses smooth ...
Jong Hwa Seo, Dong‐Sung Won, Hyun Lee, Seojoon Bang, Hyeong Seok Kang, Ju Yeong Gwon, Chan Ho Moon, Ji Won Kim, Yubeen Park, Minho Kang, Dong Yun Lee, Donghyun Lim, Kisuk Yang, Gi Doo Cha, Soo‐Hong Lee, Tae‐Sik Jang, Seokbeom Kim, Jun‐Kyu Park, Jung‐Hoon Park, Hyun‐Do Jung   +19 more
wiley   +1 more source

Aldehyde–Olefin Couplings by Photoinduced Reduction of Electron‐Deficient Olefins with Hantzsch Ester Anions

Angewandte Chemie, EarlyView.
Single‐electron transfer‐mediated reductive carbonyl–olefin couplings are valuable carbon–carbon bond forming reactions. However, limitations persist for couplings of aliphatic aldehydes with electron‐deficient olefins. Here, we report a simple, photocatalyst‐free protocol that overcomes these limitations by using a Hantzsch ester anion as a ...
Zhihang Li, Adam Noble
wiley   +2 more sources

Algicidal lactones from the marine Roseobacter clade bacterium Ruegeria pomeroyi

Beilstein Journal of Organic Chemistry, 2012
Volatiles released by the marine Roseobacter clade bacterium Rugeria pomeroyi were collected by use of a closed-loop stripping headspace apparatus (CLSA) and analysed by GC–MS.
Ramona Riclea, Julia Gleitzmann, Hilke Bruns, Corina Junker, Barbara Schulz, Jeroen S. Dickschat   +5 more
doaj   +1 more source

Phytochemical study of the Genus Salpichroa (Solanaceae), chemotaxonomic considerations, and biological evaluation in prostate and breast cancer cells [PDF]

, 2017
Twelve Salpichroa taxa have been phytochemically analyzed. From the aerial parts of S. scandens, four known salpichrolides A, C, I, S, and an unreported withanolide named salpichrolide V (1), were isolated. In S. dependens, S. gayi, S.
Barboza, Gloria Estela, Basso, Ana Valentina, Calvo, Juan Carlos, Careaga Quiroga, Valeria Pilar, Leiva González, Segundo, Nicotra, Viviana Estela, Sacca, Paula Alejandra   +6 more
core   +1 more source

Substrate‐Affinitive P‐Type Azapolycyclic Photosensitizer for Chemoselective Nitrilization Under Mild Conditions

Advanced Science, EarlyView.
We developed a series of quinoxalinoquinoxaline (QQ) photosensitizers featuring high and tunable excited‐state reduction potentials (E(PC•+/PC*) = –1.76 to –2.05 V vs. SCE). Their hydrogen‐bonding interaction with carbonyl substrates enables selective single‐electron transfer events for selective nitrilization of 1° amides, offering a tunable ...
Seongwoo Bae, Dongwook Kim, Jinwoo Kim
wiley   +1 more source

Investigation of aroma carryover risk in a pilot plant and on industrial scale when bottling aromatised and subsequent regular wines on the same filling line

OENO One
Aromatised wine-based beverages and regular wines are commonly bottled on the same bottling line. Sealings installed in the bottling line absorb added aroma compounds from the aromatised wine-based beverages and a subsequent release of the absorbed aroma
Jörg Gottmann, David Müller, Jochen Vestner, Jens Schuster, Ulrich Fischer   +4 more
doaj   +1 more source

The ring-opening polymerization of D,L-lactide in the melt initiated with tetraphenyltin [PDF]

, 1984
Melt polymerization conditions for D,L-lactide initiated with tetraphenyltin were studied with regard to polymer molecular weight and weight distributions.
Berg, J.W.A. van den, Feijen, J., Kohn, F.E., Ridder, G. van de   +3 more
core   +2 more sources

Localizable Fluorescent Metal Ion Indicators With Tunable Colors

Advanced Science, EarlyView.
A modular platform enables the generation of fluorescent metal ion indicators with tunable emission colors and precise subcellular localization. Conjugation to self‐labeling proteins yields bright, color‐tunable potassium probes that permit wash‐free live‐cell imaging, revealing dynamic potassium efflux in stimulated neurons.
Ming‐Ming Wang, De‐en Sun, Klara Gries, Kai Johnsson   +3 more
wiley   +1 more source

Asking the 5 W's for designing next‐generation bioprocessing

AIChE Journal, EarlyView.
Abstract Biotechnology is expanding beyond traditional, centralized fermentation and toward next‐generation bioprocessing paradigms that emphasize flexible deployment outside the laboratory with application‐specific performance. However, many bioprocesses fail to translate beyond proof‐of‐concept into industrially viable systems because early design ...
Sangdo Yook, Karoline Maria Vieira Nogueira, Raj Sukumar, Jenna Miller, Hal S. Alper   +4 more
wiley   +1 more source