Results 51 to 60 of about 721,337 (349)

Comparison between Ultrasound- and Microwave-Assisted Extraction Methods to Determine Phenolic Compounds in Barley (Hordeum vulgare L.)

open access: yesFoods, 2023
Barley (Hordeum vulgare L.) is one of the major cereal crops worldwide. It is grown not only to be used as fodder but also for human consumption. Barley grains are a great source of phenolic compounds, which are particularly interesting for their health ...
María Álvarez-Romero   +6 more
doaj   +1 more source

Airborne chemistry: acoustic levitation in chemical analysis

open access: yes, 2004
This review with 60 references describes a unique path to miniaturisation, that is, the use of acoustic levitation in analytical and bioanalytical chemistry applications.
Nilsson, Staffan,   +2 more
core   +1 more source

Tau acetylation at K331 has limited impact on tau pathology in vivo

open access: yesFEBS Letters, EarlyView.
We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto   +3 more
wiley   +1 more source

Assessing the chemical composition of natural water using analytical chemistry techniques. A case study in the orhei district, Republic of Moldova

open access: yesChemistry Journal of Moldova: General, Industrial and Ecological Chemistry
This study is primarily focused on evaluating the chemical composition of natural water in the locality of Cișmea, situated in the Orhei district, at the coordinates 47°24’56.0"N 28°45’05.9"E.
Victor Ciornea   +3 more
doaj   +1 more source

Amino-functionalized silica anchored to multiwall carbon nanotubes as hybrid electrode material for supercapacitors

open access: yesMaterials Science for Energy Technologies, 2018
Silica particles (SiO2) have been prepared by using sol-gel synthesis technique and are amino functionalized by treating with (3-Aminopropyl)triethoxysilane followed by composite formation using acid-functionalized multiwall carbon nanotubes (MWCNTs ...
Mohsin Javed   +5 more
doaj   +1 more source

Spectroscopic Methods for Analysis of Nano Drug Distribution System

open access: yesNano Biomedicine and Engineering, 2020
The size of the objects that are constituted within an alleged nano metric measurement of 1 to 100 nm is generally the main feature of nanoscience and nanotechnology.
Hesham Salem   +7 more
doaj   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

open access: yesFEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa   +5 more
wiley   +1 more source

Química Analítica de Processos

open access: yesQuímica Nova, 2006
Process Analytical Chemistry (PAC) is an important and growing area in analytical chemistry, that has received little attention in academic centers devoted to the gathering of knowledge and to optimization of chemical processes. PAC is an area devoted to
Trevisan Marcello G., Poppi Ronei J.
doaj   +3 more sources

Abstracts of the 1st International Online Conference on Separations

open access: yesChemistry Proceedings
The 1st International Online Conference on Separations (IOCS 2025), organized by MDPI during 15–17 October 2025, brings together researchers, professionals, and industry experts from around the world to explore the latest advancements in the dynamic ...
Grzegorz Boczkaj
doaj   +1 more source

Derivatization in Analytical Chemistry [PDF]

open access: yes, 2022
Derivatization is one of the most widely used sample pretreatment techniques in Analytical Chemistry and Chemical Analysis. Reagent-based or reagent-less schemes offer improved detectability of target compounds, modification of the chromatographic ...

core   +1 more source

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