Results 21 to 30 of about 2,657 (248)

Printing Cell Embedded Sacrificial Strategy for Microvasculature using Degradable DNA Biolubricant. [PDF]

Angew Chem Int Ed Engl
We developed a general PRINting Cell Embedded Sacrificial Strategy (PRINCESS) and successfully fabricated microvasculatures using degradable DNA biolubricant. This is the first demonstration of direct cell printing to fabricate microvasculature. Utilizing the DNA hydrogel as biolubricant, we can print a 70 μm endothelialized microvasculature and cell ...
Shi J, Wan Y, Jia H, Skeldon G, Jan Cornelissen D, Wesencraft K, Wu J, McConnell G, Chen Q, Liu D, Shu W.   +10 more
europepmc   +2 more sources

The effects of different extraction solvents on the yield and antioxidant properties of Nigella sativa oil from Saudi Arabia

Journal of Taibah University for Science, 2022
Nigella sativa L. is a fragrant plant that belongs to the Ranunculaceae family. It is commonly used as a form of traditional medicine in Middle-Eastern countries.
Moneer Alrashidi, Darfizzi Derawi, Jumat Salimon, Mohamad Firdaus Yusoff   +3 more
doaj   +1 more source

Supramolecular Lubricating Hydrogel Microspheres Reshape Damaged Matrix Regeneration. [PDF]

Adv Sci (Weinh)
The supramolecular lubricating hydrogel microspheres can provide stable mechanophysical protection at damaged matrix through interfacial hydration lubrication: in the early and middle stages, microspheres can actively provide microscale supramolecular lubrication (µ ≈ 0.04) for damaged matrix; in the late stage, the wear debris induced by shear and ...
Yuan H, Xiao P, Huang W, Cui W.
europepmc   +2 more sources

Synthesis, Characterization and Properties of Trimethylolpropane Triesters from Coconut (Cocos nucifera) Methyl Esters

مجلة بغداد للعلوم, 2023
In this study, the acid-alkaline transesterification of refined coconut seed oil (RCOSO) to fatty acid methyl ester was followed by the production of a trimethylolpropane-based thermosensitive biolubricant using potassium hydroxide, and its ...
Aliru Olajide Mustapha, SofiatOmowumi Rasaq, Mukaila Tunde Raimi , Suliat Kemi Amisu, Faimot Peju Bello, Yemisi Tokunbo Afolabi, Dayo Oshilaru   +6 more
doaj   +1 more source

Microalgae-derived biolubricants: Challenges and opportunities

Science of The Total Environment
Lubricants are indispensable in the modern economy for controlling friction and wear across many industries. Traditional lubricants are derived from petroleum crude and can cause significant ecological impact if released into the environment.
Duong T Nguyen, Md Abu Hasan Johir, T.M.I. Mahlia, A.S. Silitonga, Xiaolei Zhang, Qiang Liu, Long D. Nghiem   +6 more
openalex   +3 more sources

Enzymatic Synthesis of Trimethylolpropane-Bases Biolubricants from Waste Edible Oil Biodiesel Using Different Types of Biocatalysis [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 2022
The synthesis of environmentally friendly biodegradable lubricants has been the focus of the attention of researchers in recent years. As a result of the research, it has been determined that petroleum-based oils can compete with their physical ...
Bahar Gürkaya Kutluk, Togayhan Kutluk, Nurcan Kapucu   +2 more
doaj   +1 more source

Optimization of the process variables on biodegradable industrial lubricant basestock synthesis from Jatropha curcas seed oil via response surface methodology

Frontiers in Energy Research, 2023
The synthesis of biolubricants from renewable feedstocks is currently gaining attention. Over 95% of the market is comprised of lubricants made from petroleum.
Favour Okechi Ifeanyi-Nze, Ejiro Thelma Akhiehiero   +1 more
doaj   +1 more source

Production of biolubricant samples from palm kernel oil using different chemical modification approaches

Engineering Reports, 2021
This work focused on the chemical synthesis and characterization of palm kernel oil (PKO) for biolubricant production using transesterification of palm kernel methyl ester with trimethylolpropane (TMP) and epoxidation‐esterification methods.
Samuel O. Egbuna, Ukeh J. Nwachukwu, Chinedu M. Agu, Christain O. Asadu, Bernard Okolo   +4 more
doaj   +1 more source

Synthesis of raspberry-like structure zinc oxide nanoparticles via glycol-solvothermal, low-temperature solvothermal and coprecipitation methods

Comptes Rendus. Chimie, 2021
Highly crystalline ZnO nanoparticles with a pure phase and raspberry-like structure were synthesized using three different techniques (glycol-solvothermal, low-temperature solvothermal, and coprecipitation methods).
Baharudin, Khairul Basyar, Abdullah, Nurulhuda, Derawi, Darfizzi   +2 more
doaj   +1 more source

Stability, Viscosity, and Tribology Properties of Polyol Ester Oil-Based Biolubricant Filled with TEMPO-Oxidized Bacterial Cellulose Nanofiber

International Journal of Polymer Science, 2021
This research is aimed at studying the stability and tribology properties of the polyol ester oil- (POE-) based biolubricant mixed with various filler loadings from microparticle of TEMPO-oxidized bacterial cellulose (NDCt) as an additive and sorbitan ...
Dieter Rahmadiawan, Hairul Abral, N. Nasruddin, Zahrul Fuadi   +3 more
doaj   +1 more source