Do-It-Yourself: 3D Models of Hydrogenic Orbitals through 3D Printing

Griffith, Kaitlyn M.; Cataldo, Riccardo de; Fogarty, Keir

doi:10.1021/acs.jchemed.6b00293

Cited by 63 publications

(62 citation statements)

References 25 publications

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“…Recent advances in 3D printing have led to an increase in availability and accessibility of this technology . This allows for the creation of detailed and structurally relevant physical models of complex molecules in a cost‐effective and user‐friendly manner .…”

Section: Introductionmentioning

confidence: 99%

Creating 3D physical models to probe student understanding of macromolecular structure

Cooper

Oliver-Hoyo

2017

Biochem Molecular Bio Educ

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The high degree of complexity of macromolecular structure is extremely difficult for students to process. Students struggle to translate the simplified two-dimensional representations commonly used in biochemistry instruction to three-dimensional aspects crucial in understanding structure-property relationships. We designed four different physical models to address student understanding of electrostatics and noncovalent interactions and their relationship to macromolecular structure. In this study, we have tested these models in classroom settings to determine if these models are effective in engaging students at an appropriate level of difficulty and focusing student attention on the principles of electrostatic attractions. This article describes how to create these unique models for four targeted areas related to macromolecular structure: protein secondary structure, protein tertiary structure, membrane protein solubility, and DNA structure. We also provide evidence that merits their use in classroom settings based on the analysis of assembled models and a behavioral assessment of students enrolled in an introductory biochemistry course. By providing students with three-dimensional models that can be physically manipulated, barriers to understanding representations of these complex structures can be lowered and the focus shifted to addressing the foundational concepts behind these properties. © 2017 by The International Union of Biochemistry and Molecular Biology, 45(6):491-500, 2017.

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Section: Introductionmentioning

confidence: 99%

Creating 3D physical models to probe student understanding of macromolecular structure

Cooper

Oliver-Hoyo

2017

Biochem Molecular Bio Educ

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“…No ensino de ciências, os modelos 3D impressos são considerados materiais didáticos5 que podem facilitar a visualização de representações de processos submicroscópicos (não observáveis) e possibilitar a compreensão de fenômenos que exigem altos níveis de abstração (Jager, 2016). Dentre as possíveis contribuições do uso dos modelos 3D impressos no contexto do ensino, destacam-se: a construção de modelos 3D para o ensino do conceito de simetria de estruturas moleculares (Scalfani & Vaid, 2014); ensino do conteúdo de geometria molecular, conformação e estereoquímica (Carrol & Blauch, 2017); construção de representações dos orbitais de hidrogênio (Griffith et al, 2016) e para a compreensão dos conceitos de energia livre e potencial (Kaliakin et al, 2015). Esses estudos apontam a relevância do uso de modelos 3D impressos como ferramenta para a aprendizagem destes conceitos pelos estudantes.…”

Section: Modelos 3d Impressos E Implicações No Ensinounclassified

“…Com base nas aproximações entre os processos de modelagem científica na Ciência (Justi, 2006;Paganini, Justi & Mozzer, 2014) e a modelagem tridimensional (Meyer, 2015;Griffith, Cataldo, & Fogarty, 2016), neste estudo, buscamos responder a seguinte questão de pesquisa: quais reflexões o processo de modelagem tridimensional, como estratégia de ensino e aprendizagem do conceito de interação enzimasubstrato, proporcionou aos futuros professores de química? Considerando as reflexões sobre o processo da modelagem, propomos uma questão auxiliar: quais aspectos da modelagem científica podem ser utilizados para orientar professores e pesquisadores no desenvolvimento de atividades de modelagem tridimensional no ensino de ciências?…”

Section: Introductionunclassified

Modelagem Tridimensional: Reflexões De Futuros Professores De Química Para O Ensino E Aprendizagem Da Interação Enzima-Substrato

Almeida

Bossolani-Kiill

2019

IENCI

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ResumoNo Ensino de Ciências, a participação de estudantes em atividades de modelagem tridimensional tem sido um tema ainda pouco explorado em termos de pesquisa. Neste contexto, a presente investigação teve como objetivo apresentar e discutir as reflexões de futuros professores de química sobre o processo de modelagem tridimensional como estratégia de ensino e aprendizagem da interação enzima-substrato. Para isso, quinze estudantes de uma turma do 7º período do curso de Licenciatura em Química realizaram uma sequência de etapas da modelagem científica propostas na literatura e adaptadas para a modelagem tridimensional. As informações foram geradas por meio de desenhos, entrevistas, relatos pessoais e diário de pesquisa, seguido da transcrição e análise temática. Os resultados apontam que a participação dos estudantes nas atividades de modelagem tridimensional possibilitou: (i) indícios de aprendizagem significativa da interação enzimasubstrato; e (ii) contribuições para a formação docente. Isso no sentido de possibilitar a reflexão sobre as implicações do uso de modelos 3D impressos em suas futuras práticas de ensino. Os apontamentos deste estudo sugerem que o processo de modelagem tridimensional apresentado pode orientar professores e pesquisadores em atividades práticas de construção de conhecimento em sala de aula, sobretudo, podem contribuir para as discussões a respeito da participação de estudantes em atividades de modelagem tridimensional.Palavras-Chave: ensino de química; impressão tridimensional; estratégias de aprendizagem. AbstractThe students' participation in tree-dimensional modeling activities in Science Education has been a topic not yet explored in researches. In this context, the research aimed to present and discuss the reflections of future chemistry teachers' about the three-dimensional modeling process as a strategy for teaching and learning the enzyme-substrate interaction. For this, fifteen students of the 7º period of graduating in Chemistry carried out a sequence of scientific modeling steps proposed in the literature and adapted for tree-dimensional modeling. The information was generated through of drawings, interviews, personal reports and research diary, followed by transcription and thematic analysis. The results show that students' participation in tree-dimensional modeling activities made it possible to: (i) evidence a significant learning on the enzyme-substrate interaction; and (ii) contributions to teacher training. This study was done in order to enable reflection on the implications of the use of 3D printed models design in their future teaching practices. The study notes suggest that the tree-dimensional modeling process presented can guide teachers and researchers in practical activities to build knowledge in the classroom, above all, they can contribute to the discussions about the students participation in modeling activities.

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“…For example, as of 2016, the AM industry was valued at $7.3 billion with an average growth rate over the past 29 years of 26.6% . AM resources for educators include the NIH 3D Print Exchange, Thingiverse Education, and models and lesson plans described in the literature . Of the over 2000 publications about polymer AM in the past 25 years, 60% have been published since 2016.…”

Section: Introductionmentioning

confidence: 99%

Harnessing irreversible thermal strain for shape memory in polymer additive manufacturing

D’Amico

Barrett

Presing

et al. 2019

J of Applied Polymer Sci

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Shape transformation upon annealing of fused filament fabrication additively manufacturing structures is investigated as a oneway shape memory strategy using commodity thermoplastics. Irreversible thermal strain, which is a measurement of shape transformation upon annealing, is shown to depend on both raster angle and layer thickness, both of which are parameters than can be easily adjusted on most FFF printers. We present an algorithm based on our understanding of the underlying micromechanics of the system that allows for input of desired final dimensions and output the necessary print parameters. We also demonstrate that this approach is extensible to other materials and report more complex shape memory geometries.In this study, we demonstrate that ITε is not only dependent on both raster angle and layer thickness, but its magnitude and direction may be predicted based on those parameters. An algorithm is developed Additional Supporting Information may be found in the online version of this article.

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Do-It-Yourself: 3D Models of Hydrogenic Orbitals through 3D Printing

Cited by 63 publications

References 25 publications

Creating 3D physical models to probe student understanding of macromolecular structure

Creating 3D physical models to probe student understanding of macromolecular structure

Modelagem Tridimensional: Reflexões De Futuros Professores De Química Para O Ensino E Aprendizagem Da Interação Enzima-Substrato

Harnessing irreversible thermal strain for shape memory in polymer additive manufacturing

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