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Homobifunctional Linear PEGs, PEG Conjugations - CD Bioparticles CD Bioparticles specializes in a range of formulation and d rug delivery technologies, from conventional liposomes, PEGylated liposomes for d rug delivery to polymer microspheres and nanoparticles for enhanced d rug delivery. We have strong and broad expertise and over years of experience in the d rug delivery field. Our mission is to become the partner of choice as a leader in d rug delivery, particularly in formulating challenging compounds with liposomes, polymers and other novel nano-enabled delivery technologies.