Results 61 to 70 of about 186,089 (306)

Conventional versus ultrasound and microwave assisted synthesis: Some new environmentally friendly functionalized picolinium-based ionic liquids with potential antibacterial activity

Acta Pharmaceutica, 2015
A green chemistry approach has been adopted for the synthesis of thirty-four new picolinium-based ionic liquids using microwave (MW) and ultrasound (US) irradiation as well as conventional thermal heating. Their structures were confirmed by FT-IR, 1H NMR,
Messali Mouslim
doaj   +1 more source

Spectroscopic data of new cassane diterpenoids from the root bark of Erythrophleum suaveolens

Data in Brief, 2019
The data are related to the research article entitled ‘‘New cassane diterpenoids from the root bark of Erythrophleum suaveolens’’ (Jacques et al., 2019).
Jacques Dibi Konan, Barthélemy Koffi Attioua, Faustin Aka Kabran, Claude Landry Ahmont Kablan, Armand Angely Koffi, Sandrine Aka Any-Grah, Drissa Sissouma, Blandine Seon-Meniel, Karine LeBlanc, Jean-Christophe Jullian, Mehdi A. Beniddir, Pierre Champy   +11 more
doaj   +1 more source

Strain‐Programmable Luminescent Adhesive Patch With Tartrazine‐Mediated Optical Skin Clearing for Photochemical Tissue Bonding

Advanced Functional Materials, EarlyView.
We propose a suture‐complementary approach that integrates optical skin clearing with a strain‐programmable luminescent adhesive patch. Hyaluronic acid promotes transdermal delivery of tartrazine to improve optical clearing and stabilizes its interaction with a photosensitizer. Optical clearing increases the penetration depth of visible light into skin,
Seong‐Jong Kim, Kyungjoo Jo, Kwanghyeon Park, Jun Hee Kim, Jong Hyeong Cho, Inhoo Choi, Sei Kwang Hahn   +6 more
wiley   +1 more source

Spectroscopic and semiempirical investigation of the structural features of hetarylazo-5-isoxazolones tautomerism

Journal of Saudi Chemical Society, 2017
3-Methyl-4-hetarylazo-5-isoxazolones (I–IV) have been synthesized and investigated on the basis of Fourier transform infrared (FT-IR), UV–visible (UV–Vis), proton nuclear magnetic resonance (1H NMR) spectroscopic techniques and elemental analysis.
H.M. Rageh, S.A. Ibrahim, M.A. Selim, H.M. Alsoghier   +3 more
doaj   +1 more source

Uprolides N, O and P from the Panamanian Octocoral Eunicea succinea. [PDF]

, 2016
Three new diterpenes, uprolide N (1), uprolide O (2), uprolide P (3) and a known one, dolabellane (4), were isolated from the CH₂Cl₂-MeOH extract of the gorgonian octocoral Eunicea succinea, collected from Bocas del Toro, on the Caribbean coast of Panama.
Fernandez, Patricia L, Gerwick, William H, González, Yisett, Gutiérrez, Marcelino, Guzmán, Héctor M, Gómez-Reyes, José Félix, López-Perez, José Luis, Torres-Mendoza, Daniel   +7 more
core   +2 more sources

Actuating and Sensing Composites of Liquid Crystal Elastomers and Poly(ionic liquid)s

Advanced Functional Materials, EarlyView.
Ionic conductive, mechanically tough, flexible, and stretchable filaments of a composite material comprising a liquid crystal elastomer and a poly(ionic liquid) are produced through 3D printing, which exhibit large actuation strain under stimulation and electrical resistance variation in response to deformation or environmental condition changes. Their
Zeping Liu, Xiaofeng Zheng, Shaoxia Zhang, Long Xu, Meng Liu, Jeremy Baribeault St‐Germain, Yue Zhao   +6 more
wiley   +1 more source

Synthesis of Some New bis-Schiff Bases of Isatin and 5-Fluoroisatin in a Water Suspension Medium

Molecules, 2006
Condensation of aromatic primary bis-amines with isatin (1H-indole-2,3-dione) and 5-flouroisatin occurred cleanly and efficiently in a water suspension mediumwithout using any organic solvent or acid catalyst.
D. Khalili, A. A. Jarrahpour
doaj   +1 more source

Determination of Soybean Oil, Protein and Amino Acid Residues in Soybean Seeds by High Resolution Nuclear Magnetic Resonance (NMRS) and Near Infrared (NIRS) [PDF]

, 2012
A detailed account is presented of our high resolution nuclear magnetic resonance (HR-NMR) and near infrared (NIR) calibration models, methodologies and validation procedures, together with a large number of composition analyses for soybean seeds.
Doina Costescu, I. C. Baianu, P R. Lozano, Randall L. Nelson, Tiefeng You, Valentin Prisecaru   +5 more
core   +2 more sources

An Integrated Spectral Data Base System Including IR, MS, 1H-NMR, 13C-NMR, ESR and Raman Spectra

Analytical Sciences, 1988
An integrated spectral data base system named SDBS was constructed, in which six kinds of spectral data, i.e., data of IR, MS, 1H-NMR, 13C-NMR, ESR and Raman spectra were compiled in an integrated way under the control of a directory data base. The spectra data are full pattern data and/or numerical data depending on the features of the spectra, most ...
Osamu Yamamoto, Kazuo Someno, Nobuhide Wasada, Jiro Hiraishi, Kikuko Hayamizu, Kazutoshi Tanabe, Tadao Tamura, Masaru Yanagisawa   +7 more
openaire   +2 more sources

Dynamic Bonds Enable Repair and Reprocessing of Glycol‐Modified PET

Advanced Functional Materials, EarlyView.
Dynamic hindered urea bonds enable rapid healing in glycol‐modified PET‐based polyurethanes. Tuning the hindered‐amine content allows these polymers to balance mechanical integrity with fast repair, achieving complete scratch disappearance in 30 s at 130°C.
Chaninya Mak‐iad, José Augusto Berrocal, Georges J. M. Formon, Christoph Weder   +3 more
wiley   +1 more source