Raman Spectra of Cnm-Positive Streptococcus Mutans for Molecular Virulence Analysis

A Raman spectroscopic analysis by Giuseppe Pezzotti, published in April 2026, investigates molecular structural differences between Cnm-positive and Cnm-negative Streptococcus mutans bacteria and their biofilms. The dataset, 716.6 KB in size, contains spectral signatures aimed at revealing the molecular origin of enhanced virulence and endothelial tissue damage. The analysis includes in situ assessments of live biofilm exopolysaccharides generated upon sucrose addition.

Use Cases

• Classifying bacterial strains based on Raman spectral differences between Cnm-positive and Cnm-negative Streptococcus mutans.
• Investigating sulfur chemistry and peptidoglycan structure in bacterial anchoring mechanisms based on signals from residual oxysulfur molecules.
• Analyzing resource allocation in bacterial adaptation by comparing glycogen production and storage capacities between strains.
• Studying biofilm adhesion properties based on glucan production quantities and the ratio between α-1,6- and α-1,3-glucan fractions.

Strengths

• Dataset is based on in situ Raman assessments of live biofilms, providing direct molecular-scale observations.
• Analysis compares two distinct bacterial strains (Cnm-positive and Cnm-negative) across multiple molecular features.
• Data is shared under a permissive CC-BY-4.0 license, facilitating reuse.

Limitations

• Row count and column-level documentation are unknown, which limits suitability assessment.
• The dataset is small in scale at 716.6 KB, indicating limited scope.
• Data is contained within a DOCX file, which may require extraction or conversion for computational analysis.

Provenance

Source

Giuseppe Pezzotti via figshare

Collection Method

Raman spectroscopic analysis of bacterial cultures and biofilms.

Time Range

Analysis likely corresponds to the study publication date around April 2026.

Freshness

Last updated 2026-04-27 21:56:47; freshness should be verified.

Geography

Geographic scope of the bacterial samples is not specified.