Cyclodextrin Analysis Services
Overview
Comprehensive analytical characterization of cyclodextrin complexes is essential to provide adequate support for selecting the most appropriate cyclodextrin for each guest molecule. CD BioGlyco has the confidence to provide our clients with one-stop cyclodextrin analysis services.
Analytical Characterization of Cyclodextrins
Cyclodextrins are cyclic oligosaccharides whose physicochemical properties can be significantly modified by forming clathrates with plenty of hydrophobic guest molecules. Both analytical chemists and pharmaceutical scientists have long been exploiting these properties for solubility enhancement of insoluble drugs, stability enhancement, protection against oxidation, light-induced reaction and loss by evaporation, etc. Cyclodextrins have no chromophores or fluorophores, so they cannot be detected using traditional HPLC detectors, such as fluorescence detectors. It's also challenging to detect cyclodextrins by high-performance liquid chromatography (HPLC). However, other HPLC detections such as mass spectrometric detector, evaporative light scattering detector (ELSD), refractive index (RI) detector, and charged aerosol detector (CAD) can also be applied. Today, cyclodextrins are considered to be versatile additives of many kinds of molecular recognition-based analytical methods, such as separation science, spectroscopic methods, electroanalyses, and single-molecule sensing. The development of novel and improved analytical technologies is highly valuable in the pharmaceutical field in order to better predict and understand the aggregation phenomenon as well as their detection and quantification.
Our Major Analytical Techniques
- TLC
A fast and reliable tool to follow reactions or identify cyclodextrins. Identification and purity analysis of parent and derivatized cyclodextrins.
- HPLC
Quantitative determination of parent and derivatized cyclodextrins. Separation of the open-ringed decomposition products, the linear maltooligomers.
- NMR
The suitable tools to evaluate substitution patterns as well as to study clathrate formation.
- IR
A routine quality control technique in the pharmaceutical industry for identification purposes.
- MS
The determination of molecular weight and purity of Cyclodextrins.
- Gas chromatographic methods
Characterization of cyclodextrin derivatives by chemical degradation.
- Either single crystal or powder X-ray diffraction
Solid-phase characterization of different cyclodextrins.
- Capillary electrophoresis methods
The purity analysis of any charged derivatized cyclodextrins including positively charged ones.
- Dynamic light scattering methods
Characterizing the aggregation behavior of cyclodextrin molecules in aqueous solutions.
- Viscosity measurements
- Osmolality measurements
- Determination of the water content
Complex Clarity: Defining Cyclodextrin Science
CD BioGlyco delivers comprehensive cyclodextrin analysis services designed to address diverse industry needs. Our capabilities include confirmation of inclusion complex formation in solution and solid states, precise stoichiometry determination (host: guest ratio), and purity/quantification analysis across matrices and formulations. We further evaluate physicochemical property modifications (solubility, dissolution rate, stability) induced by complexation and leverage cyclodextrins for chiral separation of enantiomeric mixtures. To optimize outcomes, we provide formulation support for cyclodextrin derivative selection and preparation methods, alongside stability studies of complexes under varied conditions. Additionally, we characterize complexes for bioavailability enhancement and assess their efficacy in masking taste/odor in end products.
Analysis Workflow
Publication Data
DOI.: 10.3390/polysaccharides3010001
Journal: Polysaccharides
IF: 5.5
Published: 2021
Results: This review details the unique truncated cone structure of native cyclodextrins (α-, β-, and γ-cyclodextrin), characterized by a hydrophobic internal cavity and hydrophilic exterior, which underpins their ability to form inclusion complexes with various molecules. It explores key physicochemical properties like conformational flexibility, aqueous solubility variations, and aggregation behavior, emphasizing how chemical modifications (e.g., hydroxypropyl derivatives) enhance functionality. The article examines factors influencing complexation (cavity size, guest properties, water displacement) and discusses the broad applications of cyclodextrins, including pharmaceutical drug delivery (solubility enhancement, stability, bioavailability), environmental remediation (pollutant removal), food technology (flavor encapsulation, cholesterol reduction), textiles, cosmetics, and emerging uses in solar energy materials and sensors. The authors conclude that cyclodextrins' versatility and biocompatibility ensure continued scientific and industrial interest.
Advantages
- Unlike single-technique providers, we combine a broad spectrum of advanced analytical tools—from thermal and diffraction methods to various spectroscopies and HPLC—to provide a truly comprehensive and unambiguous characterization.
- Our rigorous methodologies and state-of-the-art instrumentation ensure high precision, accuracy, and reproducibility of results. We are committed to delivering scientifically sound, high-quality data that you can trust for critical decisions.
- Our services are highly customizable, allowing us to tailor study designs, analytical panels, and reporting formats to precisely align with your specific research goals and product requirements.
Application
- Our service is useful for enhancing solubility, dissolution rate, stability, and bioavailability of poorly soluble drugs.
- Our service can be used to improve the stability, delivery, and efficacy of active ingredients in skincare, haircare, and other cosmetic formulations.
- Our service supports research on flavor stability enhancement, off-flavor masking mechanisms, shelf-life extension methodologies, and functional ingredient solubilization efficiency.
Associated Services
Building on the specialized analytical expertise developed for cyclodextrin analysis services-crucial for characterizing critical quality attributes like complexation efficiency, purity, and physicochemical properties of these versatile pharmaceutical excipients comprehensive Pharmaceutical Excipient Analysis suite extends to essential natural polymers like starches. This includes rigorous Wheat Starch Analysis, Potato Starch Analysis, and Tapioca Starch Analysis. These services focus on evaluating key parameters such as granule morphology, amylose/amylopectin ratio, moisture content, microbial load, swelling power, gelatinization behavior, and purity (including absence of contaminants like residual proteins or sulfites). By providing detailed characterization of these fundamental excipients, alongside cyclodextrins, we ensure their functionality, consistency, and safety within pharmaceutical formulations.
Frequently Asked Questions
CD BioGlyco employs various approaches to provide you with professional and rapid cyclodextrin analysis services. If you want to know more about the service, please feel free to contact us.
Reference
- Poulson, B.G.; et al. Cyclodextrins: Structural, chemical, and physical properties, and applications. Polysaccharides. 2021, 3(1): 1-31. (Open Access)
