DNA/RNA Drug Physicochemical Characterization Service

DNA/RNA Drug Physicochemical Characterization Service is a systematic analysis service for nucleic acid-based drugs that covers key parameters such as molecular weight, acid dissociation constant (pKa), melting temperature (Tm), molar extinction coefficient, moisture content, and particle size aggregation. By leveraging multi-platform technologies, including mass spectrometry, spectroscopy, thermal analysis, and electrophoresis, this service provides comprehensive characterization of the physicochemical properties of DNA/RNA drugs, offering solid data support for research and quality control.

 

With the rapid development of gene therapies, nucleic acid vaccines, and small nucleic acid drugs, DNA and RNA therapeutics have become an important component of the pharmaceutical field. However, nucleic acid molecules possess complex structures and are highly sensitive to environmental conditions, and their physicochemical properties directly affect drug stability, solubility, bioavailability, and safety. Systematic physicochemical characterization not only helps reveal the behavior of drugs under various conditions but also guides formulation optimization, process development, and storage condition determination, while providing essential data support for regulatory submissions.

 

Services at MtoZ Biolabs

Leveraging advanced analytical platforms, MtoZ Biolabs provides DNA/RNA Drug Physicochemical Characterization Service to help clients comprehensively evaluate the physicochemical properties of nucleic acid drugs.

1. DNA/RNA Drug Molecular Weight Confirmation Service

High-resolution mass spectrometry techniques, including ESI-MS, LC-MS, and MALDI-TOF, are used to precisely determine the molecular weight of the drug, verify structural integrity, and detect potential impurities.

 

2. DNA/RNA Drug pH Testing Characterization Service

The solubility and stability of the drug are systematically measured under different pH conditions to provide guidance for formulation development and storage conditions.

 

3. DNA/RNA Drug Optical Rotation Testing Service

Optical instruments such as polarimeters are used to measure the optical rotation and specific rotation of drug solutions, characterizing optical activity and chiral purity.

 

4. DNA/RNA Drug pKa Determination Service

Multiple techniques including titration, spectroscopy, and chromatography, are employed to accurately determine pKa values, helping to understand the drug’s behavior under acidic and basic conditions.

 

5. DNA/RNA Drug Molar Extinction Coefficient Determination Service

UV absorption spectroscopy is applied to measure the molar extinction coefficient of the drug, supporting concentration calculations and in vitro and in vivo studies.

 

6. DNA/RNA Drug Melting Temperature (Tm) Testing Service

Differential scanning calorimetry (DSC), spectrophotometry, and circular dichroism spectroscopy were used to obtain the drug Tm value and characterize thermal stability and secondary structure characteristics.

 

7. DNA/RNA Drug Moisture Content Determination Service

Various analytical methods, such as Karl Fischer titration and thermogravimetric analysis, are used to quantify moisture content in nucleic acid drugs, indicating physicochemical stability during production, storage, and usage.

 

8. DNA/RNA Drug Size and Aggregation Analysis Service

Techniques including dynamic light scattering (DLS), size-exclusion chromatography (SEC), and electron microscopy are employed to evaluate particle size distribution and aggregation states of nucleic acid drugs.

 

Service Advantages

1. Advanced Analysis Platform

MtoZ Biolabs established an advanced DNA/RNA Drug Physicochemical Characterization Service platform, guaranteeing reliable, fast, and highly accurate analysis service.

 

2. Multidimensional Analysis

Integrating mass spectrometry, spectroscopy, thermal analysis, and electrophoresis, this service provides a comprehensive evaluation of key physicochemical parameters of DNA/RNA drugs.

 

3. Customized Service

Experimental plans are tailored according to the specific properties of the drug and client requirements.

 

4. Complete Data Support

Standardized procedures and rigorous quality control systems ensure that experimental data are complete, accurate, and reproducible.

 

Sample Submission Suggestions

1. Sample Types

Accepts various DNA/RNA drugs, including antisense oligonucleotides, DNA, mRNA, siRNA, miRNA, and aptamers.

 

2. Storage and Transportation

Samples are recommended to be stored at low temperatures (-20℃ or below) and transported on dry ice, avoiding repeated freeze-thaw cycles.

 

It is recommended to contact the MtoZ Biolabs technical team prior to sample submission to obtain detailed and tailored guidelines for sample preparation and submission.

 

Applications

Applications of DNA/RNA Drug Physicochemical Characterization Service:

1. New Drug Development and Candidate Molecule Screening

Characterize molecular weight, pKa, Tm, and other parameters to assist in rapidly selecting candidates with favorable stability and pharmacokinetic profiles.

 

2. Formulation Development and Optimization

Physicochemical data guide buffer systems, excipient selection, and delivery system design, improving drug stability and bioavailability.

 

3. Quality Control and Batch Consistency

Monitor moisture content, impurity profiles, and aggregation behavior to ensure stable manufacturing processes and enhance product consistency.

 

4. Stability and Storage Condition Studies

Test sensitivity to pH, temperature, and moisture to optimize storage conditions and transportation, extending drug shelf life.

 

Deliverables

• Comprehensive Experimental Details
• Materials, Instruments, and Methods
• Total Ion Chromatogram & Quality Control Assessment (project-dependent)
• Data Analysis, Preprocessing, and Estimation (project-dependent)
• Raw Data Files