Skip to main content
SpringerLink
Log in

Experimental evaluation of mechanical properties repeatability of SLA polymers for labs-on-chip and bio-MEMS

  • Technical Paper
  • Published:
Microsystem Technologies Aims and scope Submit manuscript

Abstract

Stereolithography (SLA) is a rapid prototyping technique based on photo-polymerization of liquid resin by laser source. The process is well known for many prototyping activities and additive manufacturing operations and started to show its potential in bio-MEMS applications like lab-on-chips. Unfortunately, the strong linkage between process parameters setting and final properties of downscaled devices is at present the primary cause of design failure and delays. In fact, it is crucial to control geometrical tolerances and mechanical properties. The aim of this work is to investigate the interactions between the most influent SLA process parameters on final mechanical and topological properties of biomedical polymers. The cross-interactions of polymer transparency, port-curing time and hatching direction are analyzed. The terms of comparison used to analyze process performances are geometrical dimensions and mechanical properties (Young’s modulus, ultimate stress/strain). The analysis of variance (ANOVA) method is used to identify the factor of influence of each process parameter.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3
Fig. 4

Similar content being viewed by others

References

  • André JC (2017a) From additive manufacturing to 3D/4D printing 1: from concepts to achievements. Wiley, Hoboken

    Book  Google Scholar 

  • André JC (2017b) From additive manufacturing to 3D/4D printing 2: current techniques, improvements and their limitations. Wiley, Hoboken

    Book  Google Scholar 

  • André JC (2017c) From additive manufacturing to 3D/4D printing 3: breakthrough innovations: programmable material, 4D printing and bio-printing. Wiley, Hoboken

    Google Scholar 

  • Bhushan B, Caspers M (2017) An overview of additive manufacturing (3D printing) for microfabrication. Microsyst Technol 23:1117–1124

    Article  Google Scholar 

  • Bose S, Vahabzadeh S, Bandyopadhyay A (2013) Bone tissue engineering using 3D printing. Mater Today 16(12):496–504

    Article  Google Scholar 

  • Chen Q, Chen Q, Maccioni G, Ferrero S, Scaltrito L, Sacco A (2010) Fabrication of micro-structures on Nickel alloy by DPSS laser ablation technique for lab-on-chip applications. Proc SPIE Int Soc Opt Eng 7762:776239

    Google Scholar 

  • Cho HS, Park WS, Choi BW, Leu MC (2000) Determining optimal parameters for stereolithographic processes via genetic algorithm. J Manuf Syst 19(1):18–27

    Article  Google Scholar 

  • Chockalingam K, Jawahar N, Chandrasekar U, Ramanathan KN (2008) Establishment of process model for part strength in stereolithography. J Mater Process Technol 208:348–365

    Article  Google Scholar 

  • De Pasquale G (2013) Experimental analysis of viscous and material damping in microstructures through the interferometric microscopy technique with climatic chamber. J Sound Vib 332:4103–4121

    Article  Google Scholar 

  • De Pasquale G (2015) Biomechanical energy harvesting: design, testing, and future trends in healthcare and human-machines interfacing. In: Mescia L, Losito O, Prudenzano F (eds) FInnovative materials and systems for energy harvesting applications. IGI global—engineering science reference, USA. pp 290–340

  • De Pasquale G (2016) Artificial human joint for the characterization of piezoelectric transducers in self-powered telemedicine applications. Meccanica 51(9):2259–2275

    Article  Google Scholar 

  • De Pasquale G, Veijola T (2008) Comparative numerical study of FEM methods solving gas damping in perforated MEMS devices. Microfluid Nanofluid 5:517–528

    Article  Google Scholar 

  • De Pasquale G, Kim SG, De Pasquale D (2016) GoldFinger: wireless human–machine interface with dedicated software and biomechanical energy harvesting system. IEEE-ASME T Mech 21(1):565–575

    Google Scholar 

  • Dulieu-Barton JM, Fulton MC (2000) Mechanical properties of a typical stereolithography resin. Strain 36(2):81–87

    Article  Google Scholar 

  • Gurr M, Mülhaupt R (2012) Rapid prototyping, in “polymer science: a comprehensive reference”. Elsevier 8:77–99

    Google Scholar 

  • Jacobs PF (1992) Fundamentals in stereolithography. 3D Systems Inc., Valencia, California, USA

  • Karalekas DE, Agelopoulos A (2006) On the use of stereolithography built photoelastic models for stress analysis investigations. Mater Des 27:100–106

    Article  Google Scholar 

  • Lafleur JP, Jönsson A, Senkbeil S, Kutter JP (2016) Recent advances in lab-on-a-chip for biosensing applications. Biosens Bioelectron 76:213–233

    Article  Google Scholar 

  • Lantada AD, Sanchez BP, Murillo CG, Sotillo JU (2013) Fractals in tissue engineering: towards biomimetic cell-culture matrices, microsystems and microstructured implants. Expert Rev Med Device 10(5):1–20

    Google Scholar 

  • Lynn-Charney C, Rosen DW (2000) Usage of accuracy models in stereolithography process planning. Rapid Prototyp J 6(2):77–86

    Article  Google Scholar 

  • Melchels FP, Feijen J, Grijpma DW (2010) A review on stereolithography and its applications in biomedical engineering. Biomaterials 31:6121–6130

    Article  Google Scholar 

  • Nee AY, Fuh JY, Miyazawa T (2001) On the improvement of the stereolithography (SL) process. J Mater Process Technol 113:262–268

    Article  Google Scholar 

  • Ratchev S, Koelemeijer S (2008) Micro-assembly technologies and applications. Springer, New York

    Book  Google Scholar 

  • Richter J, Jacobs PF (1991) The present state of accuracy in stereolithography. In: Proceedings of 2nd international conference on rapid prototyping, Dayton, Ohio (USA), pp 269–294

  • Salmoria GV, Ahrens CH, Beal VE, Pires AT, Soldi V (2009) Evalutaion of post-curing and laser manufacturing parameters on the properties of SOMOS 7110 photosensitive resin used in stereolithography. Mater Des 30:758–763

    Article  Google Scholar 

  • Solid Freeform Fabrication Proceedings Symposium, Austin, Texas (USA), 1993

  • Varadan VK, Varadan VV (2001) Micro stereo lithography and fabrication of 3D MEMS and their applications. Proc SPIE 4952:9–20

    Article  Google Scholar 

  • Ventola L, Scaltrito L, Ferrero S, Maccioni G, Chiavazzo E, Asinari P (2014) Micro-structured rough surfaces by laser etching for heat transfer enhancement on flush mounted heat sinks. J Phys Conf S 525:1–10

    Google Scholar 

  • Wang WL, Cheah CM, Fuh JY, Lu L (1996) Influence of process parameters on stereolithography part shrinkage. Mater Des 17(4):205–213

    Article  Google Scholar 

  • Zhou JG, Herschovici D, Chen CC (2000) Parametric process optimization to improve the accuracy of rapid prototyped stereolithography parts. Int J Mach Tool Manuf 40:363–379

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Turin, Italy

    Giorgio De Pasquale

  2. Department of Applied Science and Technology, Politecnico di Torino, Turin, Italy

    Valentina Bertana & Luciano Scaltrito

Authors
  1. Giorgio De Pasquale
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Valentina Bertana
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Luciano Scaltrito
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Giorgio De Pasquale.

Appendix

Appendix

See Tables 7 and 8.

Table 7 Experimental measurements on samples and nominal values (dimensions in millimeters)
Full size table
Table 8 Experimental results of mechanical characterization of samples
Full size table

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

De Pasquale, G., Bertana, V. & Scaltrito, L. Experimental evaluation of mechanical properties repeatability of SLA polymers for labs-on-chip and bio-MEMS. Microsyst Technol 24, 3487–3497 (2018). https://doi.org/10.1007/s00542-018-3753-1

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s00542-018-3753-1

Search

Navigation