{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Zeynali A"],"funding":["Marie Skłodowska-Curie","European Union's Horizon 2020 research and innovation"],"pagination":["e02130"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC12929933"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["10(4)"],"pubmed_abstract":["Exothermic photopolymerization releases heat into the sample environment. Using NaYF<sub>4</sub>:Yb<sup>3+</sup>/Er<sup>3+</sup> upconversion nanoparticle (UCNP) photoluminescence and a colinear lithography and thermometry laser configuration, we monitor thermal signatures in the focal spot during femtosecond direct laser writing in real time. A statistical short-pass filtering is introduced to reduce the standard error in temperature calibration compared to conventional Gaussian deconvolution. Thermometry performance of our set-up achieved a relative sensitivity of 0.89-1.58% K<sup>-1</sup> and a measurement uncertainty of 0.2-0.4 K for 2 Hz sample rates. With this, the effect of scan speed, laser power, and photoinitiator concentration on accompanying local heating could be followed. Non"],"journal":["Small methods"],"pubmed_title":["Upconversion Photoluminescence to Monitor Local Heat Release During Femtosecond Direct Laser Writing of Bioinks In Situ."],"pmcid":["PMC12929933"],"funding_grant_id":["101110870"],"pubmed_authors":["Zeynali A","Chirico G","Heymann M"],"additional_accession":[]},"is_claimable":false,"name":"Upconversion Photoluminescence to Monitor Local Heat Release During Femtosecond Direct Laser Writing of Bioinks In Situ.","description":"Exothermic photopolymerization releases heat into the sample environment. Using NaYF<sub>4</sub>:Yb<sup>3+</sup>/Er<sup>3+</sup> upconversion nanoparticle (UCNP) photoluminescence and a colinear lithography and thermometry laser configuration, we monitor thermal signatures in the focal spot during femtosecond direct laser writing in real time. A statistical short-pass filtering is introduced to reduce the standard error in temperature calibration compared to conventional Gaussian deconvolution. Thermometry performance of our set-up achieved a relative sensitivity of 0.89-1.58% K<sup>-1</sup> and a measurement uncertainty of 0.2-0.4 K for 2 Hz sample rates. With this, the effect of scan speed, laser power, and photoinitiator concentration on accompanying local heating could be followed. Non","dates":{"release":"2026-01-01T00:00:00Z","publication":"2026 Feb","modification":"2026-07-09T12:26:19.945Z","creation":"2026-07-09T11:17:53.795Z"},"accession":"S-EPMC12929933","cross_references":{"pubmed":["41656606"],"doi":["10.1002/smtd.202502130"]}}