A 3D-printed tunable fluidic lens with collagen-enriched membrane

Esat C. Şenel; I. Deniz Derman; Serkan Şatak; Ahmet C. Erten; Onur Ferhanoğlu

doi:10.1007/s00542-020-04960-0

A 3D-printed tunable fluidic lens with collagen-enriched membrane

Esat C. Şenel, I. Deniz Derman, Serkan Şatak, Ahmet C. Erten, Onur Ferhanoğlu^*

^*Corresponding author for this work

Department of Electronics and Communication Engineering

Istanbul Technical University

Research output: Contribution to journal › Article › peer-review

Abstract

We present a low-cost and biocompatible 3D-printed fluidic device composed of a main body and two lids with membranes in between forming a tunable lens. The main body and the lids of the device is manufactured using stereolithography (SLA) technology and comprises of one or two inlets. Collagen type-I enriched Sodium Alginate membranes are sandwiched between the main body and the top and the bottom lids. A syringe pump is employed to control the amount of liquid inside the chamber, thus tuning the radius of curvature of both membranes. The device dimensions are chosen as 15 × 10 × 7 mm³ (length × width × height), towards integration with previously developed miniaturized 3D-printed laser scanning imagers, offering focus adjustment capability. The extracted collagen, which is mixed with the membrane material, offers (1) a lens-mimicking structure, (2) biocompatibility, and (3) capability of tailoring membrane mechanical properties through adjusting collagen mass ratio. Using the manufactured device, we demonstrate focus tuning, hysteresis characterization and resolution target imaging experiments conducted at different target distances. The 3D-printed tunable lens structure is suitable for integration with a wide range of minimally invasive laser scanned imagers or ablation units presented in the literature.

Original language	English
Pages (from-to)	1993-2000
Number of pages	8
Journal	Microsystem Technologies
Volume	27
Issue number	5
DOIs	https://doi.org/10.1007/s00542-020-04960-0
Publication status	Published - May 2021

Bibliographical note

Publisher Copyright:
© 2020, Springer-Verlag GmbH Germany, part of Springer Nature.

Funding

We acknowledge Janset Sava? and Fehmi ?ivitci for useful discussions and their contribution in the CAD design of Fig.?7.

Funders	Funder number
CAD design of Fig

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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title = "A 3D-printed tunable fluidic lens with collagen-enriched membrane",

abstract = "We present a low-cost and biocompatible 3D-printed fluidic device composed of a main body and two lids with membranes in between forming a tunable lens. The main body and the lids of the device is manufactured using stereolithography (SLA) technology and comprises of one or two inlets. Collagen type-I enriched Sodium Alginate membranes are sandwiched between the main body and the top and the bottom lids. A syringe pump is employed to control the amount of liquid inside the chamber, thus tuning the radius of curvature of both membranes. The device dimensions are chosen as 15 × 10 × 7 mm3 (length × width × height), towards integration with previously developed miniaturized 3D-printed laser scanning imagers, offering focus adjustment capability. The extracted collagen, which is mixed with the membrane material, offers (1) a lens-mimicking structure, (2) biocompatibility, and (3) capability of tailoring membrane mechanical properties through adjusting collagen mass ratio. Using the manufactured device, we demonstrate focus tuning, hysteresis characterization and resolution target imaging experiments conducted at different target distances. The 3D-printed tunable lens structure is suitable for integration with a wide range of minimally invasive laser scanned imagers or ablation units presented in the literature.",

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AU - Ferhanoğlu, Onur

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AB - We present a low-cost and biocompatible 3D-printed fluidic device composed of a main body and two lids with membranes in between forming a tunable lens. The main body and the lids of the device is manufactured using stereolithography (SLA) technology and comprises of one or two inlets. Collagen type-I enriched Sodium Alginate membranes are sandwiched between the main body and the top and the bottom lids. A syringe pump is employed to control the amount of liquid inside the chamber, thus tuning the radius of curvature of both membranes. The device dimensions are chosen as 15 × 10 × 7 mm3 (length × width × height), towards integration with previously developed miniaturized 3D-printed laser scanning imagers, offering focus adjustment capability. The extracted collagen, which is mixed with the membrane material, offers (1) a lens-mimicking structure, (2) biocompatibility, and (3) capability of tailoring membrane mechanical properties through adjusting collagen mass ratio. Using the manufactured device, we demonstrate focus tuning, hysteresis characterization and resolution target imaging experiments conducted at different target distances. The 3D-printed tunable lens structure is suitable for integration with a wide range of minimally invasive laser scanned imagers or ablation units presented in the literature.

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A 3D-printed tunable fluidic lens with collagen-enriched membrane

Abstract

Bibliographical note

Funding

UN SDGs

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