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printable material

Mohamed M Abuzaid, Aishah M Alnuaimi, Asma M Abdi, Elika A Mohajer, Ifrah A Mohamed, Rawan A Bilwani, Shaima B Alhammadi
BACKGROUND: Radiological examinations require prior preparation that patients should be informed about. Radiologists and radiologic technologists have limited time and resources to do so. Therefore, the internet is a valuable and accessible resource for patient education, but the information may not be reliable, especially that in Arabic language. This study aimed to develop online patient education resources about imaging procedures in Arabic. It also evaluated the understandability and actionability of the source materials...
September 2016: Journal of the Egyptian Public Health Association
Damien Voiry, Jieun Yang, Jacob Kupferberg, Raymond Fullon, Calvin Lee, Hu Young Jeong, Hyeon Suk Shin, Manish Chhowalla
Efficient exfoliation of graphite in solutions to obtain high-quality graphene flakes is desirable for printable electronics, catalysis, energy storage, and composites. Graphite oxide with large lateral dimensions has an exfoliation yield of ~100%, but it has not been possible to completely remove the oxygen functional groups so that the reduced form of graphene oxide (GO; reduced form: rGO) remains a highly disordered material. Here we report a simple, rapid method to reduce GO into pristine graphene using 1- to 2-second pulses of microwaves...
September 23, 2016: Science
Timothy P Lodge, Takeshi Ueki
Room temperature ionic liquids are of great interest for many advanced applications, due to the combination of attractive physical properties with essentially unlimited tunability of chemical structure. High chemical and thermal stability, favorable ionic conductivity, and complete nonvolatility are just some of the most important physical characteristics that make ionic liquids promising candidates for emerging technologies. Examples include separation membranes, actuators, polymer gel electrolytes, supercapacitors, ion batteries, fuel cell membranes, sensors, printable plastic electronics, and flexible displays...
October 5, 2016: Accounts of Chemical Research
Katja Hölzl, Shengmao Lin, Liesbeth Tytgat, Sandra Van Vlierberghe, Linxia Gu, Aleksandr Ovsianikov
Bioprinting is a process based on additive manufacturing from materials containing living cells. These materials, often referred to as bioink, are based on cytocompatible hydrogel precursor formulations, which gel in a manner compatible with different bioprinting approaches. The bioink properties before, during and after gelation are essential for its printability, comprising such features as achievable structural resolution, shape fidelity and cell survival. However, it is the final properties of the matured bioprinted tissue construct that are crucial for the end application...
2016: Biofabrication
Chee Kai Chua, Wai Yee Yeong, Jia An
The emergence of bioprinting in recent years represents a marvellous advancement in 3D printing technology. It expands the range of 3D printable materials from the world of non-living materials into the world of living materials. Biomaterials play an important role in this paradigm shift. This Special Issue focuses on biomaterials and bioprinting and contains eight articles covering a number of recent topics in this emerging area.
2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
Muqdad Alhijjaj, Peter Belton, Sheng Qi
FDM 3D printing has been recently attracted increasing research efforts towards the production of personalized solid oral formulations. However, commercially available FDM printers are extremely limited with regards to the materials that can be processed to few types of thermoplastic polymers, which often may not be pharmaceutically approved materials nor ideal for optimizing dosage form performance of poor soluble compounds. This study explored the use of polymer blends as a formulation strategy to overcome this processability issue and to provide adjustable drug release rates from the printed dispersions...
September 1, 2016: European Journal of Pharmaceutics and Biopharmaceutics
Zhilian Yue, Xiao Liu, Patrick T Coates, Gordon G Wallace
PURPOSE OF REVIEW: Rapid advances in bioprinting have attracted the attention of the clinical world. The advent of printable, cytocompatible materials and appropriate hardware provides an unprecedented ability to design and create 3D structures throughout which living cells and bioactive components are strategically distributed. Here, we review those advances and present how they can be used to create new structures for more effective islet cell transplantation. RECENT FINDINGS: There is a need for improvements in the delivery vehicle for transplantable islet cells...
October 2016: Current Opinion in Organ Transplantation
A Wisitsoraat, J Ph Mensing, C Karuwan, C Sriprachuabwong, K Jaruwongrungsee, D Phokharatkul, T M Daniels, C Liewhiran, A Tuantranont
Graphene is a highly promising material for biosensors due to its excellent physical and chemical properties which facilitate electron transfer between the active locales of enzymes or other biomaterials and a transducer surface. Printing technology has recently emerged as a low-cost and practical method for fabrication of flexible and disposable electronics devices. The combination of these technologies is promising for the production and commercialization of low cost sensors. In this review, recent developments in organo-functionalized graphene and printed biosensor technologies are comprehensively covered...
August 1, 2016: Biosensors & Bioelectronics
Michael Müller, Ece Öztürk, Øystein Arlov, Paul Gatenholm, Marcy Zenobi-Wong
One of the challenges of bioprinting is to identify bioinks which support cell growth, tissue maturation, and ultimately the formation of functional grafts for use in regenerative medicine. The influence of this new biofabrication technology on biology of living cells, however, is still being evaluated. Recently we have identified a mitogenic hydrogel system based on alginate sulfate which potently supports chondrocyte phenotype, but is not printable due to its rheological properties (no yield point). To convert alginate sulfate to a printable bioink, it was combined with nanocellulose, which has been shown to possess very good printability...
August 8, 2016: Annals of Biomedical Engineering
Qi Ge, Amir Hosein Sakhaei, Howon Lee, Conner K Dunn, Nicholas X Fang, Martin L Dunn
We present a new 4D printing approach that can create high resolution (up to a few microns), multimaterial shape memory polymer (SMP) architectures. The approach is based on high resolution projection microstereolithography (PμSL) and uses a family of photo-curable methacrylate based copolymer networks. We designed the constituents and compositions to exhibit desired thermomechanical behavior (including rubbery modulus, glass transition temperature and failure strain which is more than 300% and larger than any existing printable materials) to enable controlled shape memory behavior...
2016: Scientific Reports
David P Martin, Nicolas L Melby, Shinita M Jordan, Anthony J Bednar, Alan J Kennedy, Maria E Negrete, Mark A Chappell, Aimee R Poda
Engineered nanomaterials (ENMs) are being incorporated into a variety of consumer products due to unique properties that offer a variety of advantages over bulk materials. Understanding of the nano-specific risk associated with nano-enabled technologies, however, continues to lag behind research and development, registration with regulators, and commercialization. One example of a nano-enabled technology is nanosilver ink, which can be used in commercial ink-jet printers for the development of low-cost printable electronics...
November 2016: Chemosphere
Michael Abrouk, Mio Nakamura, Tian Hao Zhu, Benjamin Farahnik, Rasnik K Singh, Kristina M Lee, Margareth V Jose, John Koo, Tina Bhutani, Wilson Liao
BACKGROUND: An increasing number of injectable biologics are now available for the treatment of psoriasis. However, for individuals who have never received this therapy, the process of performing a self-injection can be daunting. There is lack of patient educational material on how to perform and optimize this treatment. OBJECTIVE: The objective of this study is to present a freely available online guide and video on biologic injections that is informative to patients and increases the success and compliance of patients starting this therapy...
September 2016: Dermatology and Therapy
Rasnik K Singh, Kristina M Lee, Margareth V Jose, Mio Nakamura, Derya Ucmak, Benjamin Farahnik, Michael Abrouk, Tian Hao Zhu, Tina Bhutani, Wilson Liao
BACKGROUND: Psoriasis is a chronic immune-mediated disease that affects 2-3% of the world population. Ultraviolet B (UVB) phototherapy is an effective treatment for psoriasis compared to other systemic treatments. Currently there is a lack of easily accessible online patient educational material regarding this form of treatment. OBJECTIVE: To present a freely available online guide and video on UVB treatment that is informative to patients and increases the success and compliance of patients starting this therapy...
September 2016: Dermatology and Therapy
Yong He, FeiFei Yang, HaiMing Zhao, Qing Gao, Bing Xia, JianZhong Fu
As the biocompatible materials, hydrogels have been widely used in three- dimensional (3D) bioprinting/organ printing to load cell for tissue engineering. It is important to precisely control hydrogels deposition during printing the mimic organ structures. However, the printability of hydrogels about printing parameters is seldom addressed. In this paper, we systemically investigated the printability of hydrogels from printing lines (one dimensional, 1D structures) to printing lattices/films (two dimensional, 2D structures) and printing 3D structures with a special attention to the accurate printing...
2016: Scientific Reports
B M Dickson, E M Cornett, Z Ramjan, S B Rothbart
Microarray-based proteomic platforms have emerged as valuable tools for studying various aspects of protein function, particularly in the field of chromatin biochemistry. Microarray technology itself is largely unrestricted in regard to printable material and platform design, and efficient multidimensional optimization of assay parameters requires fluidity in the design and analysis of custom print layouts. This motivates the need for streamlined software infrastructure that facilitates the combined planning and analysis of custom microarray experiments...
2016: Methods in Enzymology
Hongkyu Kang, Geunjin Kim, Junghwan Kim, Sooncheol Kwon, Heejoo Kim, Kwanghee Lee
The past two decades of vigorous interdisciplinary approaches has seen tremendous breakthroughs in both scientific and technological developments of bulk-heterojunction organic solar cells (OSCs) based on nanocomposites of π-conjugated organic semiconductors. Because of their unique functionalities, the OSC field is expected to enable innovative photovoltaic applications that can be difficult to achieve using traditional inorganic solar cells: OSCs are printable, portable, wearable, disposable, biocompatible, and attachable to curved surfaces...
June 27, 2016: Advanced Materials
Awais Qureshi, Bing Li, K T Tan
In this research, the negative effective mass behavior of elastic/mechanical metamaterials is exhibited by a cantilever-in-mass structure as a proposed design for creating frequency stopping band gaps, based on local resonance of the internal structure. The mass-in-mass unit cell model is transformed into a cantilever-in-mass model using the Bernoulli-Euler beam theory. An analytical model of the cantilever-in-mass structure is derived and the effects of geometrical dimensions and material parameters to create frequency band gaps are examined...
2016: Scientific Reports
Craig D Blanchette, Jennifer M Knipe, Joshuah K Stolaroff, Joshua R DeOtte, James S Oakdale, Amitesh Maiti, Jeremy M Lenhardt, Sarah Sirajuddin, Amy C Rosenzweig, Sarah E Baker
An industrial process for the selective activation of methane under mild conditions would be highly valuable for controlling emissions to the environment and for utilizing vast new sources of natural gas. The only selective catalysts for methane activation and conversion to methanol under mild conditions are methane monooxygenases (MMOs) found in methanotrophic bacteria; however, these enzymes are not amenable to standard enzyme immobilization approaches. Using particulate methane monooxygenase (pMMO), we create a biocatalytic polymer material that converts methane to methanol...
2016: Nature Communications
Deshani H A T Gunasekera, SzeLee Kuek, Denis Hasanaj, Yinfeng He, Christopher Tuck, Anna K Croft, Ricky D Wildman
1-Ethyl-3-methylimidazolium acetate ([C2C1Im][OAc]) and 1-butyl-3-methylimidazolium acetate ([C4C1Im][OAc]) have been used as solvents for the dissolution and ink-jet printing of cellulose from 1.0 to 4.8 wt%, mixed with the co-solvents 1-butanol and DMSO. 1-Butanol and DMSO were used as rheological modifiers to ensure consistent printing, with DMSO in the range of 41-47 wt% producing samples within the printable range of a DIMATIX print-head used (printability parameter < 10) at 55 °C, whilst maintaining cellulose solubility...
August 15, 2016: Faraday Discussions
Marius Köpf, Daniela F Duarte Campos, Andreas Blaeser, Kshama S Sen, Horst Fischer
In recent years, novel biofabrication technologies have enabled the rapid manufacture of hydrogel-cell suspensions into tissue-imitating constructs. The development of novel materials for biofabrication still remains a challenge due to a gap between contradicting requirements such as three-dimensional printability and optimal cytocompatibility. We hypothesise that blending of different hydrogels could lead to a novel material with favourable biological and printing properties. In our work, we combined agarose and type I collagen in order to develop a hydrogel blend capable of long-term cell encapsulation of human umbilical artery smooth muscle cells (HUASMCs) and 3D drop-on-demand printing...
June 2016: Biofabrication
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