Recent developments and characterization techniques in 3D printing of corneal stroma tissue

2021 ◽  
Author(s):  
Songul Ulag ◽  
Ebru Uysal ◽  
Tuba Bedir ◽  
Mustafa Sengor ◽  
Nazmi Ekren ◽  
...  
Keyword(s):  
3D Printing ◽  
Corneal Stroma ◽  
Characterization Techniques ◽  
Recent Developments

scholarly journals Hierarchical ordering in light-triggered additive manufacturing

2020 ◽  
Vol 11 (46) ◽  
pp. 7316-7329
Author(s):  
Joël Monti ◽  
Eva Blasco
Keyword(s):  
Additive Manufacturing ◽  
3D Printing ◽  
Future Prospects ◽  
Structural Hierarchy ◽  
Recent Developments ◽  
Hierarchical Ordering

Herein, recent developments in the 3D printing of materials with structural hierarchy and their future prospects are reviewed. It is shown that increasing the extent of ordering, is essential to access novel properties and functionalities.

scholarly journals Progress in Starch-Based Materials for Food Packaging Applications

2022 ◽  
Vol 3 (1) ◽  
pp. 136-177
Author(s):  
Lucia García-Guzmán ◽  
Gustavo Cabrera-Barjas ◽  
Cintya G. Soria-Hernández ◽  
Johanna Castaño ◽  
Andrea Y. Guadarrama-Lezama ◽  
...  
Keyword(s):  
3D Printing ◽  
Chemical Modification ◽  
Shelf Life ◽  
Food Packaging ◽  
Environmentally Friendly ◽  
High Demand ◽  
Promising Alternative ◽  
Recent Developments ◽  
Single Use ◽  
Processing Techniques

The food packaging sector generates large volumes of plastic waste due to the high demand for packaged products with a short shelf-life. Biopolymers such as starch-based materials are a promising alternative to non-renewable resins, offering a sustainable and environmentally friendly food packaging alternative for single-use products. This article provides a chronology of the development of starch-based materials for food packaging. Particular emphasis is placed on the challenges faced in processing these materials using conventional processing techniques for thermoplastics and other emerging techniques such as electrospinning and 3D printing. The improvement of the performance of starch-based materials by blending with other biopolymers, use of micro- and nano-sized reinforcements, and chemical modification of starch is discussed. Finally, an overview of recent developments of these materials in smart food packaging is given.

scholarly journals Three-dimensional printing for device selection in cardiology: Several key points should not be neglected

2016 ◽  
Author(s):  
Hongxing Luo ◽  
Zhongmin Wang
Keyword(s):  
3D Printing ◽  
Clinical Medicine ◽  
Three Dimensional ◽  
Three Dimensional Printing ◽  
Image Postprocessing ◽  
Key Points ◽  
Study Results ◽  
Recent Developments ◽  
3D Transesophageal Echocardiography ◽  
Dimensional Printing

We comment on the recent developments and problems of three-dimensional printing in cardiology. Since there are currently no standards or consensuses for 3D printing in clinical medicine and the technology is at its infancy in cardiology, it’s very important to detail the procedures to allow more similar studies to further our understandings of this novel technology. Most studies have employed computed tomography to obtain source data for 3D printing, the use of real-time 3D transesophageal echocardiography for data acquisition remains rare, so it would be very valuable and inspiring to detail the image postprocessing steps, or the reliability of the study results will be doubtful.

Corrosion characterization of Sn-Zn solder: a review

2019 ◽  
Vol 31 (1) ◽  
pp. 52-67 ◽  
Author(s):  
Muhammad Firdaus Mohd Nazeri ◽  
Muhamad Zamri Yahaya ◽  
Ali Gursel ◽  
Fakhrozi Cheani ◽  
Mohamad Najmi Masri ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Potentiodynamic Polarization ◽  
Electrochemical Impedance ◽  
Alloy System ◽  
Future Research ◽  
Corrosion Properties ◽  
Content Type ◽  
Characterization Techniques ◽  
Recent Developments ◽  
Potentiostatic Polarization

PurposeThe purpose of this paper is to review and examine three of the most common corrosion characterization techniques specifically on Sn-Zn solders. The discussion will highlight the configurations and recent developments on each of the compiled characterization techniques of potentiodynamic polarization, potentiostatic polarization and electrochemical impedance spectroscopy (EIS).Design/methodology/approachThe approach will incorporate a literature review of previous works related to the experimental setups and common parameters.FindingsThe potentiostatic polarization, potentiodynamic polarization and EIS were found to provide crucial and vital information on the corrosion properties of Sn-Zn solders. Accordingly, this solder relies heavily on the amount of Zn available because of the inability to produce the intermetallic compound in between the elements. Further, the excellent mechanical properties and low melting temperature of the Sn-Zn solder is undeniable, however, the limitations regarding corrosion resistance present opportunities in furthering research in this field to identify improvements. This is to ensure that the corrosion performance can be aligned with the outstanding mechanical properties. The review also identified and summarized the advantages, recent trends and important findings in this field.Originality/valueThe unique challenges and future research directions regarding corrosion measurement in Sn-Zn solders were shown to highlight the rarely discussed risks and problems in the reliability of lead-free soldering. Many prior reviews have been undertaken of the Sn-Zn system, but limited studies have investigated the corrosive properties. Therefore, this review focuses on the corrosive characterizations of the Sn-Zn alloy system.

scholarly journals A comprehensive review of recent developments in 3D printing technique for ceramic membrane fabrication for water purification

RSC Advances ◽  
2019 ◽  
Vol 9 (29) ◽  
pp. 16869-16883 ◽  
Author(s):  
Hitesh Dommati ◽  
Saikat Sinha Ray ◽  
Jia-Chang Wang ◽  
Shiao-Shing Chen
Keyword(s):  
Additive Manufacturing ◽  
3D Printing ◽  
Water Purification ◽  
Ceramic Membrane ◽  
Comprehensive Review ◽  
Membrane Fabrication ◽  
Printing Technique ◽  
Recent Developments ◽  
Competitive Prices ◽  
3D Printing Technique

Additive manufacturing (AM), which is also commonly known as 3D printing, provides flexibility in the manufacturing of complex geometric parts at competitive prices and within a low production time.

Digital grotesque: Towards a micro-tectonic architecture

2013 ◽  
Vol 5 (2) ◽  
pp. 194-201
Author(s):  
Michael Hansmeyer ◽  
Benjamin Dillenburger
Keyword(s):  
Additive Manufacturing ◽  
3D Printing ◽  
Large Scale ◽  
New Technologies ◽  
Computational Design ◽  
Small Scale ◽  
Printing Technology ◽  
Recent Developments ◽  
Complex Forms ◽  
Specific Experiment

Computational design allows for architecture with an extraordinary degree of topographical and topological complexity. Limitations of traditional CNC technologies have until recently precluded this architecture from being fabricated. While additive manufacturing has made it possible to materialize these complex forms, this has occurred only at a very small scale. In trying to apply additive manufacturing to the construction of full-scale architecture, one encounters a dilemma: existing large-scale 3D printing methods can only print highly simplified shapes with rough details, while existing high-resolution technologies have limited print spaces, high costs, or material attributes that preclude a structural use. This paper provides a brief background on additive manufacturing technology and presents recent developments in sand-printing technology that overcome current 3D printing restrictions. It then presents a specific experiment, Digital Grotesque project, which is the first application of 3D sand-printing technology at an architecture scale. It describes how this project attempts to exploit the potentials of these new technologies.

Additive manufacturing as an emerging technology for fabrication of microelectromechanical systems (MEMS)

2019 ◽  
Vol 2 (2) ◽  
pp. 175-197 ◽  
Author(s):  
Sanjay Kumar ◽  
Pulak Bhushan ◽  
Mohit Pandey ◽  
Shantanu Bhattacharya
Keyword(s):  
Additive Manufacturing ◽  
3D Printing ◽  
Microelectromechanical Systems ◽  
Manufacturing Sector ◽  
Process Improvements ◽  
Recent Success ◽  
Mems Fabrication ◽  
Recent Developments ◽  
Potential Applications ◽  
Printing Processes

The recent success of additive manufacturing processes (also called, 3D printing) in the manufacturing sector has led to a shift in the focus from simple prototyping to real production-grade technology. The enhanced capabilities of 3D printing processes to build intricate geometric shapes with high precision and resolution have led to their increased use in fabrication of microelectromechanical systems (MEMS). The 3D printing technology has offered tremendous flexibility to users for fabricating custom-built components. Over the past few decades, different types of 3D printing technologies have been developed. This article provides a comprehensive review of the recent developments and significant achievements in most widely used 3D printing technologies for MEMS fabrication, their working methodology, advantages, limitations, and potential applications. Furthermore, some of the emerging hybrid 3D printing technologies are discussed, and the current challenges associated with the 3D printing processes are addressed. Finally, future directions for process improvements in 3D printing techniques are presented.

3D Printing of Biosamples: A Concise Review

2017 ◽  
Vol 05 (02) ◽  
pp. 1740002
Author(s):  
Victoria Xin Ting Zhao ◽  
Ten It Wong ◽  
Xiaodong Zhou
Keyword(s):  
3D Printing ◽  
Self Assembly ◽  
3D Structure ◽  
Structure Design ◽  
Advantages And Disadvantages ◽  
Concise Review ◽  
Recent Developments ◽  
Good Biocompatibility ◽  
Extrusion Printing ◽  
3D Applications

This paper reviews the recent development of 3D printing of biosamples, in terms of the 3D structure design, suitable printing technology, and available materials. Successfully printed 3D biosamples should possess the properties of high cell viability, vascularization and good biocompatibility. These goals are attained by printing the materials of hydrogels, polymers and cells, with a carefully selected 3D printer from the categories of inkjet printing, extrusion printing and laser printing, based on the uniqueness, advantages and disadvantages of these technologies. For recent developments, we introduce the 3D applications of creating scaffolds, printing cells for self-assembly and testing platforms. We foresee more bio-applications of 3D printing will be developed, with the advancements on materials and 3D printing machines.

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