PMID- 9027306 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220317 IS - 1095-9203 (Electronic) IS - 0036-8075 (Linking) VI - 275 IP - 5303 DP - 1997 Feb 21 TI - Probing Single Molecules and Single Nanoparticles by Surface-Enhanced Raman Scattering. PG - 1102-6 AB - Optical detection and spectroscopy of single molecules and single nanoparticles have been achieved at room temperature with the use of surface-enhanced Raman scattering. Individual silver colloidal nanoparticles were screened from a large heterogeneous population for special size-dependent properties and were then used to amplify the spectroscopic signatures of adsorbed molecules. For single rhodamine 6G molecules adsorbed on the selected nanoparticles, the intrinsic Raman enhancement factors were on the order of 10(14) to 10(15), much larger than the ensemble-averaged values derived from conventional measurements. This enormous enhancement leads to vibrational Raman signals that are more intense and more stable than single-molecule fluorescence. FAU - Nie, S AU - Nie S AD - Department of Chemistry, Indiana University, Bloomington, IN 47405, USA. FAU - Emory, SR AU - Emory SR LA - eng PT - Journal Article PL - United States TA - Science JT - Science (New York, N.Y.) JID - 0404511 EDAT- 1997/02/21 00:00 MHDA- 1997/02/21 00:01 CRDT- 1997/02/21 00:00 PHST- 1997/02/21 00:00 [pubmed] PHST- 1997/02/21 00:01 [medline] PHST- 1997/02/21 00:00 [entrez] AID - 10.1126/science.275.5303.1102 [doi] PST - ppublish SO - Science. 1997 Feb 21;275(5303):1102-6. doi: 10.1126/science.275.5303.1102.