Results 101 to 110 of about 2,944,243 (309)

Modification of chiral dimethyl tartrate through transesterification : immobilisation on POSS and enantioselectivity reversion in Sharpless asymmetric epoxidation [PDF]

, 2010
Modification of dimethyl tartrate has been investigated through transesterification with aminoalcohols to provide reactive functionalities for the covalent bonding of chiral tartrate to polyhedral oligomeric silsesquioxanes.
Van Grieken, Rafael, Sherrington, David C., Gibson, Colin L., Iglesias, José, García, Rafael A.   +4 more
core   +3 more sources

Carbohydrate-Based Hydrogels: Weaving Nature’s Versatility into Biomedical Innovation

International Journal of Nanomedicine
Camilla Maria Cova, Alessio Zuliani, Noureddine Khiar Asymmetric Synthesis and Nanosystems Group (Art&Fun), Institute for Chemical Research (IIQ), CSIC-University of Seville, Seville, 41092, SpainCorrespondence: Noureddine Khiar, Asymmetric Synthesis
Cova CM, Zuliani A, Khiar N
doaj  

Novel Chiral Diamines and (S)-6-Chloronicotine Derivatives as Catalysts for Asymmetric Synthesis

, 2009
Many enantiomerically pure products with biological activities are commonly used in the pharmaceutical industry due to their effectiveness. As such, procedures that produce stereochemically pure compounds are highly desirable.
Capracotta, Sonja Siefert
core  

Diffuse MRI Edema Predicts Relapse in Cerebral Amyloid Angiopathy–Related Inflammation

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To identify MRI predictors of relapse and quantify relapse and mortality risk in cerebral amyloid angiopathy–related inflammation (CAA‐RI). A secondary objective was to assess the association between mycophenolate mofetil use and relapse risk. Methods We performed a retrospective cohort study of 36 patients with CAA‐RI treated at the
G. Abbas Kharal, Gowtham Yerneni, Kim J. Griffin, Nicolas Thompson, Ken Uchino, Irene Katzan, Dolora Wisco, Abeer Farrag, Jayashree Sundarajan, Andrew Russman, M. Shazam Hussain   +10 more
wiley   +1 more source

Computational investigation of functionalized BTBT-based molecules for organic solar energy harvesting: DFT and TD-DFT study

Scientific African
In this study, we present the design and theoretical investigation of four novel π-conjugated acceptor molecules (M1-M4), derived from the recently synthesized core structure 2,7-bis(4-octylthiophene-2-yl)BTBT, by functionalizing it with different ...
Walid Taouali, Kamel Alimi
doaj   +1 more source

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur, Faruk Kaya, Bora Derin, Mustafa Lütfi Öveçoğlu, Ju Li, Duygu Ağaoğulları   +5 more
wiley   +1 more source

Asymmetric Total Synthesis of (-)-Octahydro-1h- Benzofuro 3,2-E Isoquinoline, a Partial Structure of Morphine

, 2009
Octahydro-1H-benzofuro[3,2-e]isoquinolines, which possess the ACNO partial structure of morphine, displayed potent oral analgesic and narcotic-antagonism activity.
Hsin, Ling-Wei; Chen, Chien-Wei; Chang, Li-Te, 忻凌偉   +1 more
core   +1 more source

From Food to Power: Hydrogel Thermoelectrics for Ingestible Electronics

Advanced Functional Materials, EarlyView.
We introduce a fully edible thermoelectric–electrochromic platform that harvests heat from food and converts it into a visible color change. N‐type and p‐type hydrogel thermoelectric generators connected in series power anthocyanin‐based electrochromic displays, demonstrating the feasibility of safe, biodegradable, ingestible systems for on‐food ...
Antonia Georgopoulou, Bokeon Kwak, Dario Floreano, Esther Amstad   +3 more
wiley   +1 more source

A versatile messenger for chirality communication: asymmetric silica framework

, 2021
Asymmetric tetrahedral carbon is the basic structural unit of many organic compounds in life and its molecular chirality plays a key role in regulating biological functions.
Liu, Xinling, Jin, Ren-Hua
core  

Regulated Ion‐Diffusion Hydrogels for Subtle and Multimodal Temperature‐Strain Sensing in Wound Monitoring

Advanced Functional Materials, EarlyView.
A soft, dual‐channel hydrogel patch enables simultaneous detection of wound temperature and strain by integrating ion‐diffusion‐mediated thermoelectric and resistive sensing. The conformal design maintains stable performance during motion, capturing subtle inflammatory and mechanical changes for continuous wound monitoring.
Yu Fang, Xinglong Pan, Zhiwei Li, Wanheng Lu, Chang Liu, Yi Zhou, Guo Tian, Ghim Wei Ho   +7 more
wiley   +1 more source