PMID- 37376336
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20230701
IS  - 2073-4360 (Electronic)
IS  - 2073-4360 (Linking)
VI  - 15
IP  - 12
DP  - 2023 Jun 15
TI  - A Regression Approach to Model Refractive Index Measurements of Novel 3D 
      Printable Photocurable Resins for Micro-Optofluidic Applications.
LID - 10.3390/polym15122690 [doi]
LID - 2690
AB  - In this work, a quadratic polynomial regression model was developed to aid 
      practitioners in the determination of the refractive index value of transparent 
      3D printable photocurable resins usable for micro-optofluidic applications. The 
      model was experimentally determined by correlating empirical optical transmission 
      measurements (the dependent variable) to known refractive index values (the 
      independent variable) of photocurable materials used in optics, thus obtaining a 
      related regression equation. In detail, a novel, simple, and cost-effective 
      experimental setup is proposed in this study for the first time for collecting 
      the transmission measurements of smooth 3D printed samples (roughness ranging 
      between 0.04 and 2 mum). The model was further used to determine the unknown 
      refractive index value of novel photocurable resins applicable in vat 
      photopolymerization (VP) 3D printing techniques for manufacturing 
      micro-optofluidic (MoF) devices. In the end, this study proved how knowledge of 
      this parameter allowed us to compare and interpret collected empirical optical 
      data from microfluidic devices made of more traditional materials, i.e., 
      Poly(dimethylsiloxane) (PDMS), up to novel 3D printable photocurable resins 
      suitable for biological and biomedical applications. Thus, the developed model 
      also provides a quick method to evaluate the suitability of novel 3D printable 
      resins for MoF device fabrication within a well-defined range of refractive index 
      values (1.56; 1.70).
FAU - Saitta, Lorena
AU  - Saitta L
AUID- ORCID: 0000-0002-1423-8779
AD  - Department of Civil Engineering and Architecture, University of Catania, Viale 
      Andrea Doria 6, 95125 Catania, Italy.
FAU - Cutuli, Emanuela
AU  - Cutuli E
AD  - Department of Electrical Electronic and Computer Science Engineering, University 
      of Catania, Viale Andrea Doria 6, 95125 Catania, Italy.
FAU - Celano, Giovanni
AU  - Celano G
AUID- ORCID: 0000-0001-7871-7499
AD  - Department of Civil Engineering and Architecture, University of Catania, Viale 
      Andrea Doria 6, 95125 Catania, Italy.
FAU - Tosto, Claudio
AU  - Tosto C
AUID- ORCID: 0000-0001-6814-7293
AD  - Department of Civil Engineering and Architecture, University of Catania, Viale 
      Andrea Doria 6, 95125 Catania, Italy.
FAU - Stella, Giovanna
AU  - Stella G
AD  - Department of Electrical Electronic and Computer Science Engineering, University 
      of Catania, Viale Andrea Doria 6, 95125 Catania, Italy.
FAU - Cicala, Gianluca
AU  - Cicala G
AUID- ORCID: 0000-0002-4680-152X
AD  - Department of Civil Engineering and Architecture, University of Catania, Viale 
      Andrea Doria 6, 95125 Catania, Italy.
AD  - INSTM-UDR CT, Viale Andrea Doria 6, 95125 Catania, Italy.
FAU - Bucolo, Maide
AU  - Bucolo M
AUID- ORCID: 0000-0003-4867-0620
AD  - Department of Electrical Electronic and Computer Science Engineering, University 
      of Catania, Viale Andrea Doria 6, 95125 Catania, Italy.
LA  - eng
GR  - MUR-PNRR project SAMOTHRACE (ECS00000022)/European Union (NextGeneration EU)/
GR  - under the grant scheme PIACERI with project MAF-moF "Materiali multifunzionali 
      per dispositivi micro-optofluidici"/University of Catania/
PT  - Journal Article
DEP - 20230615
PL  - Switzerland
TA  - Polymers (Basel)
JT  - Polymers
JID - 101545357
PMC - PMC10301409
OTO - NOTNLM
OT  - 3D printing
OT  - micro-optics
OT  - microfluidics
OT  - photocurable resin
OT  - refractive index measurement
OT  - vat-photopolymerization
COIS- The authors declare no conflict of interest.
EDAT- 2023/06/28 06:42
MHDA- 2023/06/28 06:43
PMCR- 2023/06/15
CRDT- 2023/06/28 01:38
PHST- 2023/05/10 00:00 [received]
PHST- 2023/06/05 00:00 [revised]
PHST- 2023/06/13 00:00 [accepted]
PHST- 2023/06/28 06:43 [medline]
PHST- 2023/06/28 06:42 [pubmed]
PHST- 2023/06/28 01:38 [entrez]
PHST- 2023/06/15 00:00 [pmc-release]
AID - polym15122690 [pii]
AID - polymers-15-02690 [pii]
AID - 10.3390/polym15122690 [doi]
PST - epublish
SO  - Polymers (Basel). 2023 Jun 15;15(12):2690. doi: 10.3390/polym15122690.