Results 51 to 60 of about 27,226 (298)

DNA‐Templated 2D Heterostructures as Phototriggered Dynamic Nanohybrids: From Releasing Molecular Loads to Controlling Enzyme Biocatalytic Function

open access: yesAdvanced Functional Materials, EarlyView.
DNA strands are employed both as dynamic linkers and nanoscale templates for the integration of Ag2S nanoparticles on MoS2, which in turn imparted photothermal responsiveness; this feature permits the selective cargo (fluorophore, quantum dots or an enzyme) release from the MoS2 surface in response to local heat induced by light irradiation.
Kai Chen   +3 more
wiley   +1 more source

Engineered P450 biocatalysts show improved activity and regio-promiscuity in aromatic nitration

open access: yesScientific Reports, 2017
Nitroaromatics are among the most important and commonly used chemicals but their production often suffers from multiple unsolved challenges. We have previously described the development of biocatalytic nitration processes driven by an engineered P450 ...
Ran Zuo   +6 more
doaj   +1 more source

ANSID: a Solid-Phase Proteomic Approach for Identification and Relative Quantification of Aromatic Nitration Sites

open access: yesFrontiers in Chemistry, 2016
Nitration of tyrosine and other aromatic amino acid residues in proteins occurs in the setting of inflammatory, neurodegenerative and cardiovascular diseases – importantly, this modification has been implicated in the pathogenesis of diverse diseases and
Tal eNuriel   +7 more
doaj   +1 more source

Side chain nitration of polymethylbenzenes in nitric acid-acetic anhydride mixtures

open access: yes, 1973
Product distributions resulting from nitration of polymethylbenzenes in nitric acid-acetic anhydride mixtures have been determined by gas chromatography.
GJ Wright   +3 more
core   +1 more source

Electrospun Wood‐Derived Biopolymers as Electrodes in Electrochemical Energy Storage Technologies

open access: yesAdvanced Functional Materials, EarlyView.
Electrospinning transforms wood‐derived cellulose and lignin into architecturally defined, binder‐free carbon electrodes with tuneable porosity and functionality. This review shows how fibre design enables decoupled charge and mass transport, enhancing performance across battery systems, while identifying key challenges in spinnability, scalability ...
Michael W. Thielke   +3 more
wiley   +1 more source

High Glucose-Mediated Tyrosine Nitration of PI3-Kinase: A Molecular Switch of Survival and Apoptosis in Endothelial Cells

open access: yesAntioxidants, 2018
Diabetes and hyperglycemia are associated with increased retinal oxidative and nitrative stress and vascular cell death. Paradoxically, high glucose stimulates expression of survival and angiogenic growth factors.
Sally L. Elshaer   +2 more
doaj   +1 more source

Sirtuin Oxidative Post-translational Modifications

open access: yesFrontiers in Physiology, 2021
Increased sirtuin deacylase activity is correlated with increased lifespan and healthspan in eukaryotes. Conversely, decreased sirtuin deacylase activity is correlated with increased susceptibility to aging-related diseases.
Kelsey S. Kalous   +2 more
doaj   +1 more source

Gearing of nitrate ions in ammonium nitrate

open access: yesThe Journal of Chemical Physics
Reorienting polyatomic ions such as NH4+ and NO3− exhibit weak magnetic fields because the ions at the extremities trace out current loops; if the periodic reorientations become long-range ordered (i.e., gearing of neighboring NO3−), then the magnetic susceptibility should exhibit a unique signature along the different crystallographic axes.
Na Du   +5 more
openaire   +3 more sources

Chitin‐Derived Carbon‐Metal Functional Materials

open access: yesAdvanced Functional Materials, EarlyView.
Functional carbon materials are synthesized from combination of biopolymer (chitin) and iron precursors. The resultant material exhibits superior surface area and adsorptive properties compared to carbon materials synthesized directly from pure chitin.
Herry Fang   +7 more
wiley   +1 more source

Gradient‐Conductivity Architecture Enables Synchronous Enhancement of Sensitivity and Detection Range in Multifunctional All‐Paper Sensors

open access: yesAdvanced Functional Materials, EarlyView.
A gradient‐engineered all‐paper sensor is fabricated by integrating MXene and in situ grown AgNPs within hierarchical cellulose networks. The device breaks the sensitivity–detection range trade‐off through cascaded conductive pathways, enabling ultrahigh pressure sensitivity, humidity–pressure decoupled dual‐mode sensing, and outstanding EMI shielding,
Ao Li   +7 more
wiley   +1 more source

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