2014
DOI: 10.1039/c4nr02041c
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Three-dimensional printing of freeform helical microstructures: a review

Abstract: Three-dimensional (3D) printing is a fabrication method that enables creation of structures from digital models. Among the different structures fabricated by 3D printing methods, helical microstructures attracted the attention of the researchers due to their potential in different fields such as MEMS, lab-on-a-chip systems, microelectronics and telecommunications. Here we review different types of 3D printing methods capable of fabricating 3D freeform helical microstructures. The techniques including two more … Show more

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Cited by 145 publications
(108 citation statements)
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“…The various 3D printing technologies differ in terms of cost, maximum spatial resolution and type of materials used. In particular, for the first three methods, 3D features with a very high spatial resolution (in the order of a few µm at most) have been demonstrated but at the expense of relatively high equipment costs and the need of specialized personnel to operate them [3,4]. On the other hand, FDM has recently become fairly popular especially among non-specialized personnel as it represents a very cost effective approach to produce 3D objects with a relatively good resolution, which can approach 40 µm [5].…”
Section: Introductionmentioning
confidence: 99%
“…The various 3D printing technologies differ in terms of cost, maximum spatial resolution and type of materials used. In particular, for the first three methods, 3D features with a very high spatial resolution (in the order of a few µm at most) have been demonstrated but at the expense of relatively high equipment costs and the need of specialized personnel to operate them [3,4]. On the other hand, FDM has recently become fairly popular especially among non-specialized personnel as it represents a very cost effective approach to produce 3D objects with a relatively good resolution, which can approach 40 µm [5].…”
Section: Introductionmentioning
confidence: 99%
“…By contrast, a circular cross section is perfectly symmetrical and is suitable for mimicking natural veins by diffusing radial directions of nutrition and gas uniformly, thus is considered as a good candidate for artificial capillary vessel in biological engineering (Choi et al 2011). Hence, the fabrication of microfluidic channels with circular cross section has gradually gained more attentions (Farahani et al 2014).…”
Section: Introductionmentioning
confidence: 98%
“…Such characteristic is originated from no masks depended during the micro-patterns construction. 3D printing takes the input from 3D designing program, and hence produces arbitrarily defined structures in a fully stereoscopic space with high resolution [28][29][30].…”
Section: Introductionmentioning
confidence: 99%