Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Protein Complex Assembly02:41

Protein Complex Assembly

16.8K
Proteins can form homomeric complexes with another unit of the same protein or heteromeric complexes with different types.  Most protein complexes self-assemble spontaneously via ordered pathways, while some proteins need assembly factors that guide their proper assembly. Despite the crowded intracellular environment, proteins usually interact with their correct partners and form functional complexes.
Many viruses self-assemble into a fully functional unit using the infected host cell to...
16.8K
Protein Complexes with Interchangeable Parts01:57

Protein Complexes with Interchangeable Parts

2.9K
Groups of proteins may form a complex where each protein in this complex has a different role in the overall execution of the complex’s function. Often some of the proteins in the complex can be replaced by a closely related variant to give a complex that contains many of the same components yet is functionally distinct.
The SCF ubiquitin ligase is a protein complex of five individual proteins. This complex attaches ubiquitin to other target proteins to mark them for degradation. In order...
2.9K
Complex Numbers01:29

Complex Numbers

320
The real number system cannot represent the square root of a negative number, which restricts solutions for certain equations, such as quadratics with negative discriminants. To address this, the complex number system was developed, introducing the imaginary unit i, where i = √(-1). This extension allows for the representation of all roots, including those involving negative radicands.A complex number is written in the form x + yi, where x and y are real numbers. Here, x represents the...
320
Formation of Complex Ions03:45

Formation of Complex Ions

26.2K
A type of Lewis acid-base chemistry involves the formation of a complex ion (or a coordination complex) comprising a central atom, typically a transition metal cation, surrounded by ions or molecules called ligands. These ligands can be neutral molecules like H2O or NH3, or ions such as CN− or OH−. Often, the ligands act as Lewis bases, donating a pair of electrons to the central atom. These types of Lewis acid-base reactions are examples of a broad subdiscipline called coordination...
26.2K
Co-activators and Co-repressors02:04

Co-activators and Co-repressors

8.7K
Gene transcription is regulated by the synergistic action of several proteins that form a complex at a gene regulatory site. This is observed in eukaryotes, where the regulation of gene expression is a complex process. Regulatory proteins in eukaryotes can broadly be classified into two types – regulators that bind directly to specific DNA sequences and co-regulators that associate with regulatory proteins but cannot directly bind to the DNA. These co-regulators are further divided into...
8.7K
Complex Power01:14

Complex Power

927
Power engineers have introduced the concept of complex power to determine the cumulative effect of parallel loads. This idea plays a crucial role in power analysis because it encompasses all the details related to the power consumed by a specific load.
Complex power is defined as the multiplication of the voltage and the complex conjugate of the current. The magnitude of this power, known as apparent power, is measured in volt-amperes (VA). Notably, the angle of the complex power equates to the...
927

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Medical students' attitudes, usage patterns, and associated factors with DeepSeek adoption in education: a cross-sectional study in China.

BMC medical education·2026
Same author

Association of the Intensity, Frequency, Duration, and Volume of Physical Activity With Sarcopenia and Its Related Indicators.

International journal of rheumatic diseases·2026
Same author

Experimental study on load-bearing failure characteristics and repeated seepage resistance performance of immobilized microbial cement.

Scientific reports·2026
Same author

A Mixture-of-Experts Network for Infectious Keratitis Classification Using Multimodal Slit-Lamp Images: A Multicenter Study.

Translational vision science & technology·2026
Same author

Epigenetic regulation of fruit shape determination by the JAGGED gene in Capsella rubella.

Nature communications·2026
Same author

Transfer RNA-derived small RNAs as potential biomarkers and therapeutic targets for autoimmune diseases.

International immunopharmacology·2026

Related Experiment Video

Updated: Feb 8, 2026

Assembly and Characterization of Polyelectrolyte Complex Micelles
08:44

Assembly and Characterization of Polyelectrolyte Complex Micelles

Published on: March 2, 2020

11.6K

Pinocembrin⁻Lecithin Complex: Characterization, Solubilization, and Antioxidant Activities.

Xu Yang1, Xin Wang2, Xiao-Yu Chen3

  • 1Key Laboratory of Food Nutrition and Safety, Ministry of Education, School of Food Engineering and Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China. sun_1009@126.com.

Biomolecules
|June 21, 2018
PubMed
Summary

This study shows that forming a complex between pinocembrin and lecithin significantly enhances pinocembrin's solubility and antioxidant properties. The pinocembrin-lecithin complex demonstrates improved radical scavenging capacities, suggesting potential healthcare applications.

Keywords:
pinocembrin–lecithin complexsolubility

More Related Videos

Probing for Mitochondrial Complex Activity in Human Embryonic Stem Cells
12:42

Probing for Mitochondrial Complex Activity in Human Embryonic Stem Cells

Published on: June 17, 2008

14.7K
Comparative Study on the Polysaccharide Contents and Antioxidant Activities of Hippophae rhamnoides subsp. sinensis and Hippophae gyantsensis
10:03

Comparative Study on the Polysaccharide Contents and Antioxidant Activities of Hippophae rhamnoides subsp. sinensis and Hippophae gyantsensis

Published on: August 15, 2025

707

Related Experiment Videos

Last Updated: Feb 8, 2026

Assembly and Characterization of Polyelectrolyte Complex Micelles
08:44

Assembly and Characterization of Polyelectrolyte Complex Micelles

Published on: March 2, 2020

11.6K
Probing for Mitochondrial Complex Activity in Human Embryonic Stem Cells
12:42

Probing for Mitochondrial Complex Activity in Human Embryonic Stem Cells

Published on: June 17, 2008

14.7K
Comparative Study on the Polysaccharide Contents and Antioxidant Activities of Hippophae rhamnoides subsp. sinensis and Hippophae gyantsensis
10:03

Comparative Study on the Polysaccharide Contents and Antioxidant Activities of Hippophae rhamnoides subsp. sinensis and Hippophae gyantsensis

Published on: August 15, 2025

707

Area of Science:

  • Natural Product Chemistry
  • Materials Science
  • Pharmacology

Background:

  • Pinocembrin is a flavonoid with known antioxidant, antibacterial, anti-inflammatory, and antineoplastic activities.
  • Enhancing the solubility and bioavailability of natural compounds like pinocembrin is crucial for their therapeutic applications.

Purpose of the Study:

  • To improve the solubility and antioxidant activities of pinocembrin through complex formation with lecithin.
  • To characterize the physicochemical properties and evaluate the antioxidant efficacy of the pinocembrin-lecithin complex.

Main Methods:

  • Complex formation between pinocembrin and lecithin.
  • Physicochemical analysis using UV, FTIR, SEM, and DSC.
  • Solubility assays in water and n-octane.
  • Antioxidant activity evaluation via DPPH, ABTS, hydroxyl, and superoxide-anion radical scavenging assays.

Main Results:

  • The pinocembrin-lecithin complex exhibited significantly improved solubility in both water and n-octane.
  • Differential scanning calorimetry indicated an amorphous state for the complex, lacking characteristic endothermic peaks.
  • No new covalent bonds were formed between pinocembrin and lecithin.
  • Enhanced radical scavenging capacities were observed for hydroxyl, DPPH, superoxide-anion, and ABTS radicals.

Conclusions:

  • Complexation with lecithin effectively enhances the solubility and antioxidant activities of pinocembrin.
  • The pinocembrin-lecithin complex shows promise for applications in the healthcare industry and clinical practice.
  • This approach offers a viable strategy for improving the therapeutic potential of poorly soluble natural compounds.