3D Printed Block Copolymer Nanostructures

Scalfani, Vincent F.; Turner, C. Heath; Rupar, Paul A.; Jenkins, Alexander H.; Bara, Jason E.

doi:10.1021/acs.jchemed.5b00375

Cited by 32 publications

(34 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…A. Wood et al, 2017) potential energy surfaces (Blauch & Carroll, 2014;Kaliakin, Zaari, & Varganov, 2015;Teplukhin & Babikov, 2015), orbitals (Lolur and Dawes, 2014;Griffith et al, 2016;Smiar and Mendez, 2016;Carroll and Blauch, 2018;De Cataldo et al, 2018;Robertson and Jorgensen, 2015) , 3D models for teaching symmetry (Casas & Estop, 2015;Scalfani & Vaid, 2014), block copolymer nanostructures (Scalfani et al, 2015) and models for teaching VSEPR theory (Dean et al, 2016). While many structures can be represented using off-the-shelf molecular model kits, these papers highlight structure representations and applications that are enabled by 3D printing.…”

Section: Raising the Bar With Tactile Graphics And Three-dimensional mentioning

confidence: 99%

Visualization without Vision – How Blind and Visually Impaired Students and Researchers Engage with Molecular Structures

Laconsay¹,

Wedler²,

Tantillo³

2020

JSESD

View full text Add to dashboard Cite

This article examines the tools and techniques currently available that enable blind and visually impaired (BVI) individuals to visualize three-dimensional objects used in learning chemistry concepts. How BVI individuals engage with and visualize molecular structure is discussed and recent tactile (or haptic) and auditory methods for visualization of various chemistry concepts are summarized. Remaining challenges for chemistry education researchers are described with the aim of highlighting the potential value of educational research in further enabling BVI students to pursue careers in science, technology, engineering, and mathematics (STEM) fields.

show abstract

Section: Raising the Bar With Tactile Graphics And Three-dimensional mentioning

confidence: 99%

Visualization without Vision – How Blind and Visually Impaired Students and Researchers Engage with Molecular Structures

Laconsay¹,

Wedler²,

Tantillo³

2020

JSESD

View full text Add to dashboard Cite

show abstract

“…Additive manufacturing (AM), commonly known as 3D printing, has attracted the interest of the academic and industrial research community because of its ability to fabricate objects with complex geometries at relatively low cost and with high flexibility [1][2][3][4][5][6][7][8][9]. It is an emerging technology where structures are printed layer by layer with the help of computer-aided design (CAD) models.…”

Section: Introductionmentioning

confidence: 99%

Essential work of fracture assessment of acrylonitrile butadiene styrene (ABS) processed via fused filament fabrication additive manufacturing

Verma

Ubaid

Schiffer

et al. 2021

Int J Adv Manuf Technol

View full text Add to dashboard Cite

Experiments and finite element (FE) calculations were performed to study the raster angle–dependent fracture behaviour of acrylonitrile butadiene styrene (ABS) thermoplastic processed via fused filament fabrication (FFF) additive manufacturing (AM). The fracture properties of 3D-printed ABS were characterized based on the concept of essential work of fracture (EWF), utilizing double-edge-notched tension (DENT) specimens considering rectilinear infill patterns with different raster angles (0°, 90° and + 45/− 45°). The measurements showed that the resistance to fracture initiation of 3D-printed ABS specimens is substantially higher for the printing direction perpendicular to the crack plane (0° raster angle) as compared to that of the samples wherein the printing direction is parallel to the crack (90° raster angle), reporting EWF values of 7.24 kJ m−2 and 3.61 kJ m−2, respectively. A relatively high EWF value was also reported for the specimens with + 45/− 45° raster angle (7.40 kJ m−2). Strain field analysis performed via digital image correlation showed that connected plastic zones existed in the ligaments of the DENT specimens prior to the onset of fracture, and this was corroborated by SEM fractography which showed that fracture proceeded by a ductile mechanism involving void growth and coalescence followed by drawing and ductile tearing of fibrils. It was further shown that the raster angle–dependent strength and fracture properties of 3D-printed ABS can be predicted with an acceptable accuracy by a relatively simple FE model considering the anisotropic elasticity and failure properties of FFF specimens. The findings of this study offer guidelines for fracture-resistant design of AM-enabled thermoplastics. Graphical abstract

show abstract

“…This new generation of molecular models goes beyond the modeling kits that are ubiquitous in science classrooms everywhere. Using 3D printing, researchers have created personalized models to describe proteins, DNA, hybridization, crystal unit cells, nanostructures, complex orbitals, steric interactions, and even models of potential energy surface, among other topics. Despite the utility of these new models, the relatively slow extrusion rate of the current technology means that models can take from several minutes up to hours to complete necessitating the production of models occur outside of normal class times.…”

Section: Introductionmentioning

confidence: 99%

Drawing in 3D: Using 3D printer pens to draw chemical models

Bernard

Mendez

2020

Biochem Molecular Bio Educ

View full text Add to dashboard Cite

Development of three-dimensional (3D) printing technology has started a new chapter for in-classroom modeling of chemical molecules. The technology provides the opportunity to design and produce various types of personalized models.However, using classical 3D printers is time consuming, and it is hard to involve students in the modeling process during traditional class times. One solution can be using hand-held 3D printers (3D pens) that allow users to instantly draw geometrical structures. Unfortunately, drawing directly in 3D is very difficult, and precise modeling of even small molecules is simply not possible. In this article, a new approach to 3D modeling is described. It is based on 3D templates that enable the drawing of molecular models directly in three dimensions. The modular nature of the templates allows for the creation of a wide variety of structures. The resulting models provide an accurate representation of molecules including correct bond angles and geometry. This approach makes 3D pens a powerful tool for the modeling of chemical structures. K E Y W O R D S3D printing, molecular modeling, organic chemistry

show abstract

3D Printed Block Copolymer Nanostructures

Cited by 32 publications

References 46 publications

Visualization without Vision – How Blind and Visually Impaired Students and Researchers Engage with Molecular Structures

Visualization without Vision – How Blind and Visually Impaired Students and Researchers Engage with Molecular Structures

Essential work of fracture assessment of acrylonitrile butadiene styrene (ABS) processed via fused filament fabrication additive manufacturing

Drawing in 3D: Using 3D printer pens to draw chemical models

Contact Info

Product

Resources

About