PMID- 30467706 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20230928 IS - 2196-5404 (Electronic) IS - 2196-5404 (Linking) VI - 5 IP - 1 DP - 2018 Sep 25 TI - Biological tissue sample preparation for time-of-flight secondary ion mass spectrometry (ToF-SIMS) imaging. PG - 24 LID - 10.1186/s40580-018-0157-y [doi] LID - 24 AB - Time-of-flight secondary ion mass spectrometry (ToF-SIMS) imaging is an analytical technique rapidly expanding in use in biological studies. This technique is based on high spatial resolution (50-100 nm), high surface sensitivity (1-2 nm top-layer), and statistical analytic power. In mass spectrometry imaging (MSI), sample preparation is a crucial step to maintaining the natural state of the biomolecules and providing accurate spatial information. However, a number of problems associated with temperature changes in tissue samples such as loss of original distribution due to undesired molecular migration during the sample preparation or reduced ionization efficiency make it difficult to accurately perform MSI. Although frozen hydrate analysis is the ideal sample preparation method to eliminate the effects of temperature, this approach is hindered by mechanical limitations. Alternatively, an adhesive-tape-supported mounting and freeze-drying preparation has been proposed. This paper provides a concise review of the sample preparation procedures, a review of current issues, and proposes efficacious solutions for ToF-SIMS imaging in biological research. FAU - Yoon, Sohee AU - Yoon S AD - Center for Nano-Bio Measurement, Korea Research Institute of Standards and Science (KRISS), Daejeon, 34113, Republic of Korea. FAU - Lee, Tae Geol AU - Lee TG AUID- ORCID: 0000-0002-6674-4147 AD - Center for Nano-Bio Measurement, Korea Research Institute of Standards and Science (KRISS), Daejeon, 34113, Republic of Korea. tglee@kriss.re.kr. LA - eng PT - Journal Article PT - Review DEP - 20180925 PL - England TA - Nano Converg JT - Nano convergence JID - 101695675 PMC - PMC6153193 OTO - NOTNLM OT - Adhesive tape mounting OT - Analyte migration OT - Cholesterol OT - Freeze drying OT - Frozen hydrate analysis OT - Sample preparation OT - Thaw mounting OT - Tissue section OT - ToF-SIMS imaging EDAT- 2018/11/24 06:00 MHDA- 2018/11/24 06:01 PMCR- 2018/09/25 CRDT- 2018/11/24 06:00 PHST- 2018/08/09 00:00 [received] PHST- 2018/09/05 00:00 [accepted] PHST- 2018/11/24 06:00 [entrez] PHST- 2018/11/24 06:00 [pubmed] PHST- 2018/11/24 06:01 [medline] PHST- 2018/09/25 00:00 [pmc-release] AID - 10.1186/s40580-018-0157-y [pii] AID - 157 [pii] AID - 10.1186/s40580-018-0157-y [doi] PST - epublish SO - Nano Converg. 2018 Sep 25;5(1):24. doi: 10.1186/s40580-018-0157-y.