PMID- 31573322 OWN - NLM STAT- MEDLINE DCOM- 20201231 LR - 20201231 IS - 1557-8127 (Electronic) IS - 1540-658X (Linking) VI - 18 IP - 1 DP - 2020 Jan TI - Single-Molecule Characterization of Drug Delivery Systems. PG - 56-63 LID - 10.1089/adt.2018.903 [doi] AB - Delivery of the drug to a desired point of body and controlled release of the therapeutic agent are important features, provided by drug delivery systems (DDSs), for development of today's effective medicines. A variety of nanomaterials or nanomolecules such as lipids/liposomes, nucleic acids, peptides/proteins, composites, polymers, or carbon nanotubes can be used as DDSs. Single-molecule characterization of these small materials in terms of their size, shape, surface, encapsulation efficiency, as well as interaction with the drug-receiving cell has importance for their efficiency. The loading, distribution, or leakage of the drug as well as its interaction with DDS should also be characterized. Although diverse techniques are present for characterization of specific DDS material, methods such as electron microscopy and fluorescence microscopy are widely used. In this review, the current methodologies utilized for the single-molecule characterization of mostly preferred DDS materials were presented. FAU - Okay, Sezer AU - Okay S AD - Department of Vaccine Technology, Vaccine Institute, Hacettepe University, Ankara, Turkey. AD - Department of Biology, Faculty of Science, Cankiri Karatekin University, Cankiri, Turkey. LA - eng PT - Journal Article PT - Review DEP - 20191001 PL - United States TA - Assay Drug Dev Technol JT - Assay and drug development technologies JID - 101151468 RN - 0 (Pharmaceutical Preparations) SB - IM MH - *Drug Delivery Systems MH - Humans MH - Nanostructures/*chemistry MH - Particle Size MH - Pharmaceutical Preparations/*chemistry MH - Surface Properties OTO - NOTNLM OT - drug delivery system OT - nanomaterial OT - nanomolecule OT - nanotechnology OT - single-molecule EDAT- 2019/10/02 06:00 MHDA- 2021/01/01 06:00 CRDT- 2019/10/02 06:00 PHST- 2019/10/02 06:00 [pubmed] PHST- 2021/01/01 06:00 [medline] PHST- 2019/10/02 06:00 [entrez] AID - 10.1089/adt.2018.903 [doi] PST - ppublish SO - Assay Drug Dev Technol. 2020 Jan;18(1):56-63. doi: 10.1089/adt.2018.903. Epub 2019 Oct 1.