A framework of materials for 4d printing

19^th World Congress on Materials Science and Engineering

June 11-13, 2018 | Barcelona, Spain

Saba Abdulghani Oliveira da Silva

CDRSP-IPLeiria, Portugal

Keynote: J Material Sci Eng

Abstract :

4D printing is a term used in additive or direct digital manufacturing to describe a process in which a part is prepared with a particular form and then when stimulated by changes in temperature, humidity, light and pH transforms in to another shape. Such an approach is a revolutionary idea in manufacturing. The opportunities are endless. Figure 1 shows an example from the literature. For example object can be prepared to make manufacturing facile, transport costs minimal and then converted in to the finished object at the point of use. Clearly this technology has much to offer to medical devices and we can envisage an object which is printed in a form to make it easy to insert in to the body by, for example a hypodermic needle, which then at body temperature opens up in to a 3d structure to close an internal injury, implant a tissue for regenerative purposes or to deliver some therapeutic agent. In this presentation we present a framework for 4d printing which enables us to classify different types of shape or form changes. We review the stimuli driven materials available and hence the molecular mechanisms available to deliver 4D printing technology with temperature and light activation. We take examples from the literature and identify the most promising molecular mechanisms and identify the potential for applications. This work is supported by the Funda�§�£o para a Ci�ªncia e a Tecnologia (FCT) through the Project references: UID/Multi/04044/2013; PAMI - ROTEIRO/0328/2013 (N�º 022158) and MATIS (CENTRO-01-0145-FEDER-000014 - 3362). Recent Publications 1. A. Sydney Gladma, Elisabetta A. Matsumoto, Ralph G. Nuzzo, L. Mahadevan & Jennifer A. Lewis. Nature Materials volume 15, pages 413â��418 (2016). 2. Qi Ge, Amir Hosein Sakhaei, Howon Lee, Conner K. Dunn, Nicholas X. Fang, Martin L. SCIENTIFIC Reports 2016 6:31110 DOI: 10.1038/srep31110. 3. Morou�§o,P., Lattanzi, W., & Alves, N. (2017). 4D Bioprinting as a new era for tissue engineering and regenerative medicine. Frontiers in Bioengineering and Biotechnology, 5, 61. 4. Zhen Ding, Chao Yuan, Xirui Peng, Tiejun Wang, H. Jerry Qi2,â�  and Martin L. Dunn Science Advances 2017: Vol. 3, no. 4, e1602890 DOI: 10.1126/sciadv.1602890. 5. Steven K. Leist & Jack Zhou (2016) Current status of 4D printing technology and the potential of light-reactive smart materials as 4D printable materials, Virtual and Physical Prototyping, 11:4, 249-262, DOI: 10.1080/17452759.2016.119863

Biography :

Saba Abdulghani Oliveira da Silva is a researcher at the Centre for Rapid and Sustainable Product Development at the Polytechnic Institute Leiria (IPL), Portugal. Saba carried out her Bachelor of Engineering degree (B.Eng) and Doctorate degree (PhD) at the Materials Department of Queen Mary University of London in Biomaterials under the supervision of Professor K.E. Tanner. Following her PhD, Saba was awarded a Marie Curie Intra-European Post-Doctoral Fellowship to work on the Biomechanics of cemented hip prostheses at the Biomaterials and Biomechanics Laboratory, Lund University Hospital, Sweden under the supervision of Professor Lars Lidgren. In 2008, Saba moved to Portugal to work at the Rheumatology research unit, Instituto de Medicina Molecular (IMM) on the mechanical properties of osteoporotic bone, for which she won a research award from the European Calcified Tissue Society (ECTS/ Servier International Award 2010).  Saba´s research experience covers orthopaedic biomaterials and biomechanics as well as the mechanics of healthy and diseased bone. She has her work published in international journals and has presented her work at international conferences all over the world and is a reviewer for a number of International journals. Her current research interests are 3D and 4D scaffolds for tissue engineering, AM and biomechanics.
Email:saba.a.silva@ipleiria.pt