Results 101 to 110 of about 7,590 (235)

Metabolic profile and root development of Hypericum perforatum L. in vitro roots under stress conditions due to chitosan treatment and culture time [PDF]

, 2016
The responses of Hypericum perforatum root cultures to chitosan elicitation had been investigated through 1H-NMR-based metabolomics associated with morpho-anatomical analyses.
Alessio eValletta, Alfredo eMiccheli, Elisa eBrasili, Fabio eSciubba, Federico eMarini, Gabriella ePasqua, Giulia ePraticò, Maria Enrica eDi Cocco, Maria Enrica eDi Cocco, Noemi eTocci, Valdir eCechinel-Filho, Valdir eCechinel-Filho   +11 more
core   +2 more sources

Multi‐material and dual‐stimulus coupled actuation micro‐gears for shape–rotation control in intelligent micro‐electro‐mechanical systems

FlexMat, EarlyView.
A multi‐material and dual‐stimulus coupled actuation micro‐gear (MDCAMG) is developed via femtosecond‐laser 3D printing combined with magnetic nanoparticle absorption, enabling integrated environmental sensing and remote actuation at the microscale. The device incorporates a pH‐responsive hydrogel matrix for autonomous swelling/shrinking and a magnetic
Sida Peng, Shengzhi Sun, Jian Li, Yi Zhu
wiley   +1 more source

Phenolic characterization of Northeast Portuguese propolis: usual and unusual compounds [PDF]

, 2010
In this study, an ethanolic extract from Portuguese propolis was prepared, fractionated by highperformance liquid chromatography, and the identification of the phenolic compounds was done by electrospray mass spectrometry in the negative mode.
Barros, Cristina M.R.F., Cardoso, Susana M., Domingues, M.R.M., Estevinho, Leticia M., Falcão, Soraia, Vilas-Boas, Miguel   +5 more
core   +1 more source

Diacetylene‐Functionalized Glycan Mimetics for Receptor‐Mediated Cluster Imprinting in Model Membranes

Macromolecular Rapid Communications, EarlyView.
Diacetylene‐containing glycan mimetics cluster upon selective lectin binding in GUVs. Subsequent irradiation leads to the formation of fluorescent polymer clusters, while non‐clustered glycan mimetics remain unaffected in the membrane. ABSTRACT The glycocalyx, a dense layer of glycoproteins and glycolipids on eukaryotic cells, is essential for cellular
Luca‐Cesare Blawitzki, Lina Charlotte Assenmacher, Nicholas Jäck, Stephan Schmidt, Cornelia Monzel, Laura Hartmann   +5 more
wiley   +1 more source

Photochromic carbazole photoinitiators for precision visible‐light photopolymerization

Polymer International, EarlyView.
New carbazole–naphthopyran derivatives were employed as visible‐light‐activated photoinitiators, enabling rapid and localized radical photopolymerization to produce well‐defined thin solid objects within minutes. Abstract Two carbazole derivatives, each incorporating a naphthopyran unit and an aromatic ketone, were synthesized and evaluated as ...
Mauro Magalhães, Céu M Sousa, José R Fernandes, Paulo J Coelho   +3 more
wiley   +1 more source

Antiviral properties of Berembang Bukit and Kandis Hutan against psedorabies virus in animal cell culture [PDF]

, 2011
Tropical rainforest in Malaysia represents and untapped potential source of antiviral compounds. Bioactive compounds in plant species from the same genus as Kandis Hutan such as xanthones, benzophenones, biflavonoids and lupeol had been studied ...
Allaudin, Zeenathul Nazariah, Goh, Sheen Yee, Loh, Sandy Hwei San, Mohd Lila, Mohd Azmi, Tan, Seok Shin, Ting, Kang Nee   +5 more
core  

Quantifying Dual‐Color Photopolymerization in Xolography via Raman Spectroscopy

Journal of Polymer Science, EarlyView.
A dual‐wavelength Raman spectroscopy workflow is presented for the quantitative assessment of dual‐color photoinitiators. Contrast and efficiency parameters are extracted from in situ curing curves and spatial Raman mapping is used to find inhomogeneities in printed objects.
Nele Lange, Torsten Döhler, Martin Herder, Yves Garmshausen, Friedhelm Heinrich, Christian Dreyer, Mandy Hofmann, Claus Villringer, Michael Herzog, Stefan Hecht, Martin Regehly   +10 more
wiley   +1 more source

Substituent Effect on the Photoreduction Kinetics of Benzophenone [PDF]

, 2013
The kinetics of the photoreduction of four benzophenone derivatives by isopropyl alcohol was examined in acetonitrile, namely tetra-meta-trifluoromethyl-, di-para-trifluoromethyl-, di-para-methoxy benzophenone and for comparison the unsubstituted ...
Böőr, Katalin, Demeter, Attila, Horváth, Klaudia, Lendvay, György, Molnár, Laura, Soós, Tibor   +5 more
core   +1 more source

Bimetallic Bismuth‐Based Nanoparticles From Pseudo‐Tetrahedral Zintl Anions

Small, EarlyView.
Bismuth‐based Zintl anions are explored as precursors for synthesizing bimetallic nanoparticles with tunable compositions and morphologies, including alloyed, core–shell, and Janus types. The resulting nanoparticles display composition‐dependent UV absorption.
Megan A. Parker, Dirk Hauschild, Ravi Priya, Constantin Wansorra, Ralph Steininger, Benjamin Peerless, Lothar Weinhardt, Clemens Heske, Stefanie Dehnen   +8 more
wiley   +1 more source

A novel sulfur‐containing photoinitiator based on benzophenone derivatives for rapid photopolymerization

Smart Molecules, EarlyView.
This study develops a series of unimolecular photoinitiators, BP‐S1‐5, by incorporating hydrogen‐donating groups into a benzophenone framework. This method reduces the reliance on co‐initiators, and enables BP‐S1‐5 with efficient photoinitiation and excellent molding capability.
Yu Li, Wenzheng Li, Saihe Yang, Lu Li, Shikun Song, Yuting Tang, Han Han, Zhenyue Duan, Yangyang Xin, Jiangli Fan, Pengzhong Chen, Xiaojun Peng   +11 more
wiley   +1 more source