PCL-PEG-Rhodamine B (PCL-PEG-RhB)

Price range: $380.00 through $425.00

PCL-PEG-Rhodamine B (PCL-PEG-RhB) is a fluorescent amphiphilic block copolymer consisting of poly(ε-caprolactone) (PCL), polyethylene glycol (PEG), and Rhodamine B (RhB). The biodegradable PCL segment promotes nanoparticle and micelle formation, while the PEG chain enhances aqueous solubility and biocompatibility. The covalently attached Rhodamine B fluorophore provides bright red fluorescence for nanoparticle tracking, cellular imaging, drug delivery studies, and biomaterials research.

Product Name: PCL-PEG-Rhodamine B
Abbreviation: PCL-PEG-RhB
Chemical Structure: Poly(ε-caprolactone)-Polyethylene Glycol-Rhodamine B
PCL Molecular Weight: Custom available
PEG Molecular Weight: Custom available
Fluorophore: Rhodamine B (RhB)
Excitation Maximum: ~555 nm
Emission Maximum: ~580 nm
Appearance: Pink to dark red powder
Solubility: DMSO, DMF, THF, dichloromethane; forms micelles in aqueous media
Storage: -20°C, dry and protected from light
Purity: Typically ≥95%

PCL-PEG-RhB

Description

General Description

PCL-PEG-Rhodamine B is a multifunctional biodegradable copolymer designed for fluorescence imaging and nanomedicine applications. The hydrophobic poly(ε-caprolactone) (PCL) segment self-assembles into polymeric micelles and nanoparticles capable of encapsulating hydrophobic therapeutics, whereas the hydrophilic polyethylene glycol (PEG) segment improves aqueous dispersibility, colloidal stability, prolonged circulation, and biocompatibility.

The covalently linked Rhodamine B (RhB) fluorophore emits bright red fluorescence, allowing direct visualization of polymeric nanoparticles, biodistribution, cellular uptake, intracellular trafficking, and drug release using fluorescence microscopy, confocal microscopy, and flow cytometry. Because the fluorophore is chemically attached to the polymer backbone, fluorescence remains stable throughout nanoparticle preparation and biological studies.

PCL-PEG-RhB is widely used in targeted drug delivery, nanomedicine, tissue engineering, bioimaging, diagnostic research, and the development of multifunctional fluorescent biomaterials.

Applications

  • Fluorescent nanoparticle preparation
  • Drug delivery systems
  • Cellular uptake studies
  • Fluorescence microscopy
  • Confocal imaging
  • Flow cytometry
  • Biodistribution studies
  • Tissue engineering
  • Polymer tracking
  • Biomaterials research

Features and Benefits

  • Amphiphilic PCL-PEG block copolymer
  • Covalently linked Rhodamine B fluorophore
  • Bright red fluorescence
  • Biodegradable PCL segment
  • Excellent aqueous dispersibility
  • Suitable for nanoparticle fabrication
  • Enables real-time fluorescence tracking
  • Research-grade quality

Additional information

PCL Molecular Weight

1000, 2000, 3000, 4000, 5000, 10000

PEG Molecular Weight

1000, 2000, 3000, 5000

Package size

50mg