Results 91 to 100 of about 93,015 (287)

Piperine-hydroxybenzoate as phytochemistry antiosteoarthritis combination: Structural, solubility, and in vivo antiinflammatory study

Heliyon
This study discusses the composition and structure determination of a new multicomponent system from antiinflammatory natural ingredients, consisting of piperine (Pip) and 4-hydroxybenzoic acid (HBA), named Pip-HBA. In addition, this research studied its
Ari Sartinah, Hidehiro Uekusa, Yuto Abekura, Slamet Ibrahim, Kusnandar Anggadiredja, Ilma Nugrahani   +5 more
doaj   +1 more source

Ugi reaction-derived prolyl peptide catalysts grafted on the renewable polymer polyfurfuryl alcohol for applications in heterogeneous enamine catalysis

Beilstein Journal of Organic Chemistry, 2019
The multicomponent synthesis of prolyl pseudo-peptide catalysts using the Ugi reaction with furfurylamines or isocyanides is described. The incorporation of such a polymerizable furan handle enabled the subsequent polymerization of the peptide catalyst ...
Alexander F. de la Torre, Gabriel S. Scatena, Oscar Valdés, Daniel G. Rivera, Márcio W. Paixão   +4 more
doaj   +1 more source

A general A³: coupling reaction based on functionalized alkynes

Química Nova, 2013
A range of hydroxypropargylpiperidones were efficiently obtained by a one-pot three-component coupling reaction of aldehydes, alkynols, and a primary amine equivalent (4-piperidone hydrochloride hydrate) in ethyl acetate using copper(I) chloride as a ...
Edison P. Wendler, Alcindo A. Dos Santos
doaj   +1 more source

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

Advanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu, Mengyao Xiao, Zhouli Sui, Yinpeng Wang, Daoye Zheng, Yuxin Liu, Luwei Wang, Huajun Liu, Chengkuo Lee   +8 more
wiley   +1 more source

Unlocking the Potential of MXene‐Based Electrochemical Biosensors: A Review of Biofunctionalization Strategies and Biosensing Principles

Advanced Materials Technologies, EarlyView.
ABSTRACT Electrochemical biosensors enable the accurate and timely detection of clinical biomarkers, improving healthcare and precision medicine. MXene nanosheets, a class of 2D transition metal carbides, nitrides, and carbonitrides, are promising materials for developing next‐generation electrochemical biosensors due to their unique physicochemical ...
Muhsin Ali, Sharat Chandra Barman, Isobel Steer, Aya H. Alshareef, Dana Alsulaiman   +4 more
wiley   +1 more source

Mechanical Fatigue in Liquid‐Metal Interconnects: Failure Mechanism Analysis and Validation of Improvement Strategies

Advanced Materials Technologies, EarlyView.
Multi‐million cycle reliability for liquid metal stretchable electronics is achieved through a continuous cycle of mechanical testing, failure mode and mechanism analysis and implementing subsequent mitigation strategies. ABSTRACT Stretchable electronics that combine mechanical compliance with reliable electrical performance are essential for ...
Lennert Purnal, Maximilian Krack, Parth Vinayakrao Sewlikar, Bart Ruttens, Tom Hauffman, Iris De Graeve, Wim Deferme, Michaël Daenen, Monika Rai   +8 more
wiley   +1 more source

Catalytic multicomponent synthesis of imidazopyrimidine derivatives: an updated review

Journal of Saudi Chemical Society
Fused imidazopyrimidine nucleus constitutes an important class of heterocyclic compounds in organic chemistry. Imidazopyrimidine consists of imidazole and pyrimidine ring, both of which are present in natural products such as folic acid and vitamins ...
Neha Ali, Sumayya Akram, Sana Aslam, Matloob Ahmad, Sadia Sultan, Sami A. Al-Hussain, Magdi E. A. Zaki   +6 more
doaj   +1 more source

Analysis of the Reaction Rate Coefficients for Slow Bimolecular Chemical Reactions

, 2012
Simple bimolecular reactions $A_1+A_2\rightleftharpoons A_3+A_4$ are analyzed within the framework of the Boltzmann equation in the initial stage of a chemical reaction with the system far from chemical equilibrium.
AS Cukrowski, AS Cukrowski, AS Cukrowski, AS Cukrowski, AW Silva, AW Silva, AW Silva, B Shizgal, B Shizgal, B Shizgal, BD Shizgal, BD Shizgal, BD Shizgal, BV Alexeev, E Nagnibeda, F Baras, Gilberto M. Kremer, GM Alves, GM Kremer, GM Kremer, GM Kremer, I Prigogine, I Prigogine, I Prigogine, J Ross, Landolt-Börsnstein, Landolt-Börsnstein, M Bisi, N Xystris, N Xystris, R Brun, RD Present, RD Present, RD Present, SR Groot de, Tiago G. Silva, V Giovangigli, W Stiller   +37 more
core   +1 more source

Chemically Doped Conductive Polymers for Wearable Health Monitoring

Advanced Materials Technologies, EarlyView.
Among conductive polymers, poly(3,4‐ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS), polyaniline (PANI), and polypyrrole (PPy) are the most studied and applied. Chemical doping significantly boosts intrinsic conductivity and mechanical robustness.
Mengdi Zuo, Jian Song, Hong Hu, Le Zheng, Lei Zhang, Charles H. Lawrie   +5 more
wiley   +1 more source

Various Synthetic Pathways for the Synthesis of 3,4-Disubstituted Isoxazole by One Pot Multicomponent Reaction

Orbital: The Electronic Journal of Chemistry, 2020
Isoxazole is a five membered heterocyclic compound which is an azole with an oxygen atom next to nitrogen. The substituted isoxazole derivatives show various biological activities like antimicrobial, antiviral, anti-inflammatory, antioxidant, anticancer ...
Parul Setia, Ruchi Bharti, Renu Sharma
doaj