Results 41 to 50 of about 1,028 (242)

Fluorescence recognition of chiral amino alcohols by using a novel ionic liquid sensor

open access: yes, 2017
A novel task-specific ionic liquid derived from l-phenylalaninol was prepared as an enantioselective fluorescent sensor for the first time.
Xiaoyong Zhao   +3 more
core   +1 more source

The Electrochemical Detection of Acetaminophen and the Enantioselective Recognition of Tyrosine Enantiomers using a modified carbon-based electrode [PDF]

open access: yes, 2022
The beginning of this thesis sees the development and characterisation of a β-cyclodextrin (β- CD) based electrochemical sensor for the electrochemical detection of acetaminophen (paracetamol) and the influence of the accompanying activation of the ...
Healy, Bronach Michelle
core   +2 more sources

Engineering Homochiral MOFs in TiO2 Nanotubes as Enantioselective Photoelectrochemical Electrode for Chiral Recognition

open access: yes, 2021
Enantioselective sensing of chiral molecules is an important issue for both biomedical research and the pharmaceutical industry. Here, an enantioselective photoelectrochemical (PEC) sensor was constructed by integrating TiO2 nanotubes (NTs) with metal ...
Junli Guo   +13 more
core   +1 more source

Asymmetric α‐Alkylation With Activated and Unactivated Electrophiles by a Highly Productive and Recyclable Lewis Acid/Imidazolium Catalyst

open access: yesAngewandte Chemie International Edition, EarlyView.
An air‐stable, easily prepared, bifunctional Cu(II)/imidazolium complex enables highly enantioselective α‐alkylation of 1,3‐dicarbonyls with outstanding productivity (TON up to 1740). Highlights include broad electrophile scope spanning π‐activated and nonactivated reagents, stereo‐retentive allylation, simple catalyst synthesis, and efficient catalyst
Johanna Haußmann   +8 more
wiley   +1 more source

A Ruthenium‐(Ph‐BPE) Catalyst for Asymmetric Alkynylation of Fluoral: Enantioselection From 1 of 12 Fluxional Stereogenic‐at‐Ruthenium Complexes

open access: yesAngewandte Chemie International Edition, EarlyView.
The first enantioselective alkynylations of aqueous fluoral are described. These processes are catalyzed by an iodide‐bound ruthenium‐(Ph‐BPE)‐catalyst; an octahedral metal complex that can exist as 12 diastereomeric‐at‐metal isomers. Calculations reveal that 2 of 12 stereoisomeric complexes account for 99.9% of the Boltzmann population and that ...
Weijia Shen   +6 more
wiley   +1 more source

The Oxidation Mechanisms of Saturated Fatty Acids: Formation of Hydroperoxide Isomers and Production of 2‐Alkanones and Lactones

open access: yesJournal of the American Oil Chemists' Society, EarlyView.
ABSTRACT Saturated fatty acids (SFAs) are generally regarded simply as being resistant to oxidation compared with unsaturated fatty acids. However, it has long been reported that SFAs can undergo oxidation when heated at high temperatures, leading to the formation of unique degradation products such as 2‐alkanones and lactones.
Kanji Aoyagi   +2 more
wiley   +1 more source

Automatic solid-phase synthesis of molecularly imprinted nanoparticles (MIP NPs) [PDF]

open access: yes, 2012
Molecularly Imprinted Polymers (MIPs) are potential generic alternatives to antibodies in diagnostics and separations. To compete with biomolecules in these technological niches, MIPs need to share the characteristics of antibodies (solubility, size ...
Poma, Alessandro
core  

Fluorescent Sensors for the Enantioselective Recognition of Mandelic Acid:  Signal Amplification by Dendritic Branching

open access: yes, 2016
Novel chiral bisbinaphthyl compounds have been synthesized for the enantioselective fluorescent recognition of mandelic acid. By introducing dendritic branches to the chiral receptor unit, the fluorescence signals of the receptors are significantly ...
Qiao-Sheng Hu (1650490)   +3 more
core   +1 more source

Quantum Phenomena in Molecular and Biological Systems: A Decoherence‐Based Decision Framework With Falsifiable Predictions and a Failure‐Mode Taxonomy

open access: yesAdvanced Physics Research, EarlyView.
A physics‐grounded framework based on decoherence timescales (τ_dec vs τ_func), Markovian validity, and falsifiability criteria is applied across molecular systems to distinguish where quantum effects are necessary, marginal, or irrelevant. The analysis integrates quantum chemistry, biological quantum mechanisms, and quantum computing under a unified ...
Sarfaraz K. Niazi
wiley   +1 more source

A homochiral metal-organic porous material for enantioselective separation and catalysis

open access: yes, 2019
Inorganic zeolites are used for many practical applications that exploit the microporosity intrinsic to their crystal structures. Organic analogues, which are assembled from modular organic building blocks linked through non- covalent interactions, are ...
Oh, J   +6 more
core   +1 more source

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