Results 41 to 50 of about 137,846 (301)

ZnO/ionic liquid catalyzed biodiesel production from renewable and waste lipids as feedstocks [PDF]

open access: yes, 2019
A new protocol for biodiesel production is proposed, based on a binary ZnO/TBAI (TBAI = tetrabutylammonium iodide) catalytic system. Zinc oxide acts as a heterogeneous, bifunctional Lewis acid/base catalyst, while TBAI plays the role of phase transfer ...
Casiello, Michele   +8 more
core   +1 more source

3D Printing of Soft Robotic Systems: Advances in Fabrication Strategies and Future Trends

open access: yesAdvanced Robotics Research, EarlyView.
Collectively, this review systematically examines 3D‐printed soft robotics, encompassing material selections, function integration, and manufacturing methodologies. Meanwhile, fabrication strategies are analyzed in order of increasing complexity, highlighting persistent challenges with proposed solutions.
Changjiang Liu   +5 more
wiley   +1 more source

Chemical Metabolomics: Chemical Biology Tools for Advanced Metabolism Investigations

open access: yesAngewandte Chemie, EarlyView.
The human metabolism has been investigated for several millennia. The metabolome is known for a high complexity due to a large number of different metabolites that are present at different concentrations. Metabolomics has been developed as a field to investigate the entire human metabolome and to elucidate disease development mechanisms.
Alejandro Torregrosa‐Chinillach   +4 more
wiley   +2 more sources

Rheological, Physicochemical, and GC-MS of Fatty acid Composition of Palm Oil from Cross River State, Nigeria

open access: yesTurkish Journal of Agriculture: Food Science and Technology
Palm oil is a ubiquitous ingredient in numerous products and is a significant global commodity. This study presents a comparative analysis of the rheological, physicochemical properties and fatty acid composition of palm oil from Cross River State ...
Vincent Okechukwu Anidiobu   +2 more
doaj   +1 more source

Synthesis of carbon-13-labeled tetradecanoic acids.

open access: yesJournal of Lipid Research, 1983
The synthesis of tetradecanoic acid enriched with 13C at carbons 1, 3, or 6 is described. The label at the carbonyl carbon was introduced by treating 1-bromotridecane with K13CN (90% enriched) to form the 13C-labeled nitrile, which upon hydrolysis ...
J T Sparrow, K M Patel, J D Morrisett
doaj   +1 more source

Determination of Fatty Acid Methyl Ester Composition of Mango (Mangifera indica L.) Kernel Oil and Tribological Properties of its Triesters

open access: yesJournal of Applied Sciences and Environmental Management, 2023
Conventional process of Soxhlet extraction with n-Hexane was used to extract Mango kernel (Mangifera indica L.) oil for determination of fatty acid methyl ester composition of mango (Mangifera indica L.) kernel oil and tribological properties of its ...
Y. Jethro, A. O. Oyewale, I. Abdulkadir
doaj   +1 more source

Production Of Methyl Ester From Various Coconut Oils [PDF]

open access: yes, 2018
Production of methyl ester from various coconut oils had been studied. This study aimed to determine optimal method for methyl esther production based on free fatty acid content and methyl ester yield.
Makalalag, A. K. (Ardi)
core  

Investigations on Deposit Formation in the Holes of Diesel Injector Nozzles [PDF]

open access: yes, 2011
Current developments in fuels and emissions regulations are resulting in an increasingly severe operating environment for diesel fuel injection systems.
Aleiferis, P   +5 more
core   +1 more source

NMR Spectra of Fatty Acid Methyl Esters

open access: yesThe Journal of the Society of Chemical Industry, Japan, 1965
魚油から製取した高度不飽和酸メチル,各種C18酸メチル(ステアリン,オレイン,リノール,リノレン),n-バレリアン酸メチルおよびカプロン酸メチルの100McのNMRスペクトルを測定し,60Mcのスペクトルにおいて不明確であった二,三の事実を明らかにした。すなわち,〓のシグナルは,カルボニルに対してγ位以上離れた普通のメチン〓よりも低磁場にあること, 〓のシグナルは明瞭なtripletを与えることなどを明らかにした。さらに,幾何構造の異なるオレイン酸メチルと,エライジン酸メチルとの間に,またα-エレオステアリン酸メチルと,β-エレオステアリン酸メチルとの間に,オレフィ二ックプロトンのシグナルの形状に相違があることを明らかにした。
Tetsutaro HASHIMOTO   +2 more
openaire   +2 more sources

Dual‐Responsive Dynamic Covalent Bond‐Based Assembly of Lipid‐Nanozyme Systems via Multi‐Target Synergy and Efficient Target Enrichment for Ischemic Stroke Therapy

open access: yesAdvanced Science, EarlyView.
This system adopts a biomimetic phospholipid structure, covalently binding iNOS inhibitors, neuroprotective agent PCA and vitamin E derivatives through pH/ROS dual‐responsive bonds, and assembles them with Prussian blue nanozyme to form PBB@AHA. It can efficiently penetrate the blood‐brain barrier and simultaneously release multiple active components ...
Mengcheng Guo   +9 more
wiley   +1 more source

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