Empowering Innovation: Your Partner in Gellan Analysis Services
Gellan is extensively utilized in various pharmaceutical forms, such as oral, ophthalmic, and nasal preparations. Its ability to biodegrade, lack of toxicity, rapid gelation when exposed to cations, high water absorption capacity, and potential for adhering to mucosal surfaces make it a valuable ingredient in a wide array of pharmaceutical formulations. CD BioGlyco provides a comprehensive Pharmaceutical and Biological Analysis Service, with a particular focus on our reliable multi-type Pharmaceutical Excipient Analysis Service. The specific gellan analysis services we provide are as follows.
- Our specialists employ rheometers for the assessment of the rheological characteristics of gellan solutions, encompassing viscosity, shear stress, and shear rate.
- We determine the rheological properties of gellan by analyzing the relationship between shear stress and shear rate, which helps evaluate the rate and mechanism of drug release under different flow conditions.
- Additionally, we assess the viscosity, elasticity, and other properties of gellan gels to aid in determining their encapsulation efficiency and stability for drug molecules.
- We assist in evaluating the performance and compatibility of gellan for specific drug systems by analyzing their rheological properties under various conditions to guide the selection of drug formulations.
- CD BioGlyco provides the gellan thermal property measurement service by techniques such as differential scanning calorimetry (DSC) to investigate the thermal behavior and phase transition properties. The properties we test include melting point and enthalpy of melting.
- We utilize high-performance liquid chromatography (HPLC) to separate and identify the components of the drug. This allows us to quantify the amount of gellan present. Additionally, we employ Fourier transform infrared spectroscopy (FTIR) to study the molecular structure of gellan in the drug and gain insight into its chemical composition. Furthermore, we also utilize nuclear magnetic resonance spectroscopy (NMR) to provide information on the molecular structure of the gelling.
![The analysis content provided for gellan. (CD BioGlyco)](https://www.bioglyco.com/wp-content/themes/glycobio/img/4-14-3-52-gellan-analysis-service-1.jpg)
Publication
Technology: FTIR, viscosity measurement, and rheology testing
Journal: Frontiers in Medical Technology
IF: 2.1
Published: 2021
Results: This article investigated low acyl gellan as an excipient for improving the sprayability and adhesion of iota carrageenan in nasal sprays. It was found that low acyl gellan significantly improved spray coverage and exhibited strong adhesion when interacting with mucus. Spray coverage and adhesion could be further improved by mixing low acylgran and ionic carrageenan. The researchers used viscosity measurements and rheological tests to evaluate the viscoelastic and rheological properties of gellan. The researchers also characterized gellan using FTIR to determine its chemical structure.
Fig.1 The molecular composition of the repeating segments in (A) iota carrageenan and (B) low acyl gellan. (Osmałek, et al., 2014)
Applications
- Gellan is widely used as a thickener, gelling agent, and stabilizer, and analytical techniques can be used in food ingredient research to assess the content, purity, and stability of gellan.
- Gellan analytical technology can be used to evaluate the biocompatibility, scaffold structure, and cell encapsulation efficiency of gellan gels as cell culture media.
- The technologies used in the gellan analysis can be used to evaluate the physical properties, biocompatibility, and drug release kinetics of gellan gels in medical devices such as tissue engineering scaffolds.
Advantages
- Our analytical techniques are versatile and can be applied to samples in various forms, including powders, gels, solutions, etc., allowing for analysis across different applications.
- Our diverse range of analytical techniques yields a wealth of information regarding your samples, encompassing surface morphology and molecular structure, facilitating a comprehensive comprehension of the properties of your samples.
- Most analysis techniques at CD BioGlyco are non-destructive and do not damage the sample, allowing in-situ observation and measurement of the sample.
Frequently Asked Questions
- What is the molecular structure of gellan?
Gellan is a polysaccharide polymer with a relatively complex molecular structure consisting of multiple glycosyl units. In general, the molecular structure of gellan consists mainly of glucose, galactose, and glucuronic acid. These monosaccharide units are linked together by different chemical bonds to form the polysaccharide chains of gellan.
- How does the degree of substitution of gellan affect its properties?
The degree of substitution of gellan refers to the percentage of hydroxyl groups substituted in the polysaccharide chain. Changes in the degree of substitution can significantly affect the properties and functions of gellan, including its gel properties, stability, and solubility. An increase in substitution usually decreases the gel strength and elasticity of gellan. This is because the introduction of substituents may lead to weakened interactions between polysaccharide chains, which may affect the structural stability of the gel. The solubility of gellan usually increases with increasing substitution. This is because the introduction of substituents can break the hydrogen bonds and hydrophobic interactions between the polysaccharide chains, making gellan more soluble in water.
CD BioGlyco provides a comprehensive gellan analysis service, encompassing gellan content analysis, viscosity measurement, structural characterization, and more. Contact us today to learn more about how we can assist you with your gellan analysis needs.
Reference
- Robinson, T.E.; et al. Low acyl gellan as an excipient to improve the sprayability and mucoadhesion of iota carrageenan in a nasal spray to prevent infection with SARS-CoV-2. Frontiers in Medical Technology. 2021, 3: 687681.
This service is for Research Use Only, not intended for any clinical use.