Breakthrough in Heart Disease Diagnosis: Gemini SERS Platform Reveals Early Warning Signs

Strategic Insights -

Researchers from Nanjing Medical University have developed a dual-signal surface-enhanced Raman scattering (SERS) platform, dubbed Gemini, to detect early warning signs of heart disease. The platform integrates antibody-functionalized gold nanoparticles for protein recognition and a boronate-based SERS nanotag responsive to hydrogen peroxide generated from a pyruvate oxidase-mediated cascade. This innovative approach enables the simultaneous detection of metabolites and proteins in complex biofluids, providing a more accurate and early diagnosis of acute coronary syndrome-induced sudden cardiac death (ACS-SCD).

Key Takeaways:

  • The Gemini SERS platform can detect two biomarkers, pyruvate and lactate dehydrogenase B (LDHB), in plasma-derived exosomes with detection limits of 2.415 mM for pyruvate and 0.032 ng/mL for LDHB.
  • The platform achieved 85% accuracy, 90% sensitivity, and 80% specificity in distinguishing ACS-SCD patients from healthy controls.
  • The Gemini platform integrates multiplexed detection of metabolites and proteins, enabling ratiometric and interference-free detection.
  • The platform has the potential to provide clinically scalable early cardiovascular risk assessment and precision diagnostics across diverse pathophysiological conditions.

Statistics:

  • Detection limits: 2.415 mM for pyruvate and 0.032 ng/mL for LDHB.
  • Accuracy: 85% (90% sensitivity, 80% specificity) in distinguishing ACS-SCD patients from healthy controls.
  • Diagnostic performance: comparable to conventional methods (AUC = 0.82 vs 0.79).

Sources:

  • Gemini SERS for Cross-Category Biomarker Detection and Early Warning of Sudden Cardiac Death in Acute Coronary Syndrome, ACS Nano, 2025.
  • NewsRx. New Heart Disease Study Findings Recently Were Reported by Researchers at Nanjing Medical University (Gemini SERS for Cross-Category Biomarker Detection and Early Warning of Sudden Cardiac Death in Acute Coronary Syndrome). Cardiovascular Week. November 3, 2025; p 58.