keyword
MENU ▼
Read by QxMD icon Read
search

organ printing

keyword
https://www.readbyqxmd.com/read/29470849/direct-integration-of-red-nir-emissive-ceramic-like-anm6xi8xa6-metal-cluster-salts-in-organic-copolymers-using-supramolecular-interactions
#1
Yann Molard, Malo Robin, Noée Dumait, Maria Amela-Cortes, Claire Roiland, Maxime Harnois, Emmanuel Jacques, Hervé Folliot
Hybrid nanomaterials made of inorganic nanocomponents dispersed in an organic host raise an increasing interest as low-cost solution-processable functional materials. However, preventing phase segregation while allowing a high inorganic doping content remains a major challenge, and usual methods require a functionalization step prior integration. Herein, we report a new approach to design such nanocomposite in which lead-free and cadmium-free ceramic-like metallic nanocluster compounds are embedded at 10 wt % in organic copolymers, without any functionalization...
February 22, 2018: Chemistry: a European Journal
https://www.readbyqxmd.com/read/29466613/readily-production-of-flow-reactor-cartridges-by-3d-printing-of-thermostable-enzymes
#2
Manfred Maier, Carsten P Radtke, Jürgen Hubbuch, Christof M Niemeyer, Kersten S Rabe
Compartmentalization of chemical reactions is an essential principle of life that provides a major source of innovation for the development of novel approaches in biocatalysis. To implement spatially controlled biotransformations, rapid manufacturing methods are needed for the production of biocatalysts applicable in flow systems. While three-dimensional (3D) printing techniques offer high throughput manufacturing capability, they are not usually compatible with the delicate nature of enzymes, which call for physiological processing parameters...
February 21, 2018: Angewandte Chemie
https://www.readbyqxmd.com/read/29463782/endogenous-volatile-organic-compounds-in-acute-myeloid-leukemia-origins-and-potential-clinical-applications
#3
Dibyendu Dutta, Ngee S Chong, Seah H Lim
Not unlike many cancer types, acute myeloid leukemia (AML) exhibits many metabolic changes and reprogramming, causing changes in lipid metabolism. Some of the distinct molecular abnormalities associated with AML also modify the metabolic changes. Both processes result in changes in the production of endogenous volatile organic compounds (VOCs). The increasing availability of highly sensitive methods for detecting trace chemicals provides the opportunity to investigate the role of patient-specific VOC finger-prints as biomarkers for detecting early relapse or minimal residual disease (MRD) in AML...
February 21, 2018: Journal of Breath Research
https://www.readbyqxmd.com/read/29460421/tattoo-paper-transfer-as-a-versatile-platform-for-all-printed-organic-edible-electronics
#4
Giorgio E Bonacchini, Caterina Bossio, Francesco Greco, Virgilio Mattoli, Yun-Hi Kim, Guglielmo Lanzani, Mario Caironi
The use of natural or bioinspired materials to develop edible electronic devices is a potentially disruptive technology that can boost point-of-care testing. The technology exploits devices that can be safely ingested, along with pills or even food, and operated from within the gastrointestinal tract. Ingestible electronics can potentially target a significant number of biomedical applications, both as therapeutic and diagnostic tool, and this technology may also impact the food industry, by providing ingestible or food-compatible electronic tags that can "smart" track goods and monitor their quality along the distribution chain...
February 20, 2018: Advanced Materials
https://www.readbyqxmd.com/read/29452273/3d-bioprinted-functional-and-contractile-cardiac-tissue-constructs
#5
Zhan Wang, Sang Jin Lee, Heng-Jie Cheng, James J Yoo, Anthony Atala
Bioengineering of a functional cardiac tissue composed of primary cardiomyocytes has great potential for myocardial regeneration and in vitro tissue modeling. However, its applications remain limited because the cardiac tissue is a highly organized structure with unique physiologic, biomechanical, and electrical properties. In this study, we undertook a proof-of-concept study to develop a contractile cardiac tissue with cellular organization, uniformity, and scalability by using three-dimensional (3D) bioprinting strategy...
February 13, 2018: Acta Biomaterialia
https://www.readbyqxmd.com/read/29449485/volatile-chemical-products-emerging-as-largest-petrochemical-source-of-urban-organic-emissions
#6
Brian C McDonald, Joost A de Gouw, Jessica B Gilman, Shantanu H Jathar, Ali Akherati, Christopher D Cappa, Jose L Jimenez, Julia Lee-Taylor, Patrick L Hayes, Stuart A McKeen, Yu Yan Cui, Si-Wan Kim, Drew R Gentner, Gabriel Isaacman-VanWertz, Allen H Goldstein, Robert A Harley, Gregory J Frost, James M Roberts, Thomas B Ryerson, Michael Trainer
A gap in emission inventories of urban volatile organic compound (VOC) sources, which contribute to regional ozone and aerosol burdens, has increased as transportation emissions in the United States and Europe have declined rapidly. A detailed mass balance demonstrates that the use of volatile chemical products (VCPs)-including pesticides, coatings, printing inks, adhesives, cleaning agents, and personal care products-now constitutes half of fossil fuel VOC emissions in industrialized cities. The high fraction of VCP emissions is consistent with observed urban outdoor and indoor air measurements...
February 16, 2018: Science
https://www.readbyqxmd.com/read/29449113/characterization-of-the-non-metal-fraction-of-the-processed-waste-printed-circuit-boards
#7
Amit Kumar, Maria E Holuszko, Travis Janke
Electronic waste is one the fastest growing waste streams in the world and waste printed circuit boards (PCB) are the most valuable part of this stream due to the presence of gold, silver, copper, and palladium. The metal present in PCBs is mostly recovered for the market value whereas the nonmetal fractions are often ignored. This research explored the characteristics of the non-metal fraction (NMF) obtained after the processing of milled waste PCBs with a focus on responsible end-of-life solutions, in the form of non-hazardous landfilling or incineration...
February 12, 2018: Waste Management
https://www.readbyqxmd.com/read/29448586/new-yellow-synergist-for-stable-pigment-dispersion-of-inkjet-ink
#8
Gihyun Song, Hayoon Lee, Hyocheol Jung, Seokwoo Kang, Jongwook Park
Minimizing ink droplet and self-dispersed pigment mixture are becoming hot issues for high resolution of inkjet printing. New synergist including sulfonic acid group of PY-74 was suggested and synthesized. Pigment itself did not show water solubility but new synergist, SY-11 exhibited good solubility in water and organic solvents such as DMSO and DMF. When aqueous pigment ink was prepared with SY-11, storage stability of the ink has been remained for 7 days under periodically repeated heating and cooling conditions...
February 1, 2018: Journal of Nanoscience and Nanotechnology
https://www.readbyqxmd.com/read/29438276/printing-smart-designs-of-light-emitting-devices-with-maintained-textile-properties
#9
Inge Verboven, Jeroen Stryckers, Viktorija Mecnika, Glen Vandevenne, Manoj Jose, Wim Deferme
To maintain typical textile properties, smart designs of light emitting devices are printed directly onto textile substrates. A first approach shows improved designs for alternating current powder electroluminescence (ACPEL) devices. A configuration with the following build-up, starting from the textile substrate, was applied using the screen printing technique: silver (10 µm)/barium titanate (10 µm)/zinc-oxide (10 µm) and poly(3,4-ethylenedioxythiophene)poly(styrenesulfonate) (10 µm). Textile properties such as flexibility, drapability and air permeability are preserved by implementing a pixel-like design of the printed layers...
February 13, 2018: Materials
https://www.readbyqxmd.com/read/29428560/enabling-personalized-implant-and-controllable-biosystem-development-through-3d-printing
#10
REVIEW
Neerajha Nagarajan, Agnes Dupret-Bories, Erdem Karabulut, Pinar Zorlutuna, Nihal Engin Vrana
The impact of additive manufacturing in our lives has been increasing constantly. One of the frontiers in this change is the medical devices. 3D printing technologies not only enable the personalization of implantable devices with respect to patient-specific anatomy, pathology and biomechanical properties but they also provide new opportunities in related areas such as surgical education, minimally invasive diagnosis, medical research and disease models. In this review, we cover the recent clinical applications of 3D printing with a particular focus on implantable devices...
February 8, 2018: Biotechnology Advances
https://www.readbyqxmd.com/read/29428517/heterogeneous-electro-fenton-as-plausible-technology-for-the-degradation-of-imidazolinium-based-ionic-liquids
#11
V Poza-Nogueiras, M Arellano, E Rosales, M Pazos, E González-Romero, M A Sanromán
Conventional water treatments are generally inadequate for degradation of emerging pollutants such as ionic liquids (ILs). The use of heterogeneous electro-Fenton (HEF) has attracted great interest, due to its ability to efficiently oxidize a wide range of organic pollutants operating in cycles or in continuous mode. In this study, the removal of a complex IL from the imidazolinium family (1,3-Bis(2,4,6-trimethylphenyl)imidazolinium chloride), by means of HEF using iron alginate spheres as catalyst has been investigated, resulting in significant TOC decay after 6 h...
February 8, 2018: Chemosphere
https://www.readbyqxmd.com/read/29426947/additive-manufacturing-of-3d-nano-architected-metals
#12
Andrey Vyatskikh, Stéphane Delalande, Akira Kudo, Xuan Zhang, Carlos M Portela, Julia R Greer
Most existing methods for additive manufacturing (AM) of metals are inherently limited to ~20-50 μm resolution, which makes them untenable for generating complex 3D-printed metallic structures with smaller features. We developed a lithography-based process to create complex 3D nano-architected metals with ~100 nm resolution. We first synthesize hybrid organic-inorganic materials that contain Ni clusters to produce a metal-rich photoresist, then use two-photon lithography to sculpt 3D polymer scaffolds, and pyrolyze them to volatilize the organics, which produces a >90 wt% Ni-containing architecture...
February 9, 2018: Nature Communications
https://www.readbyqxmd.com/read/29425777/easy-to-perform-and-cost-effective-fabrication-of-continuous-flow-reactors-and-their-application-for-nanomaterials-synthesis
#13
Domenico Andrea Cristaldi, Fatih Yanar, Ali Mosayyebi, Pablo García-Manrique, Eugen Stulz, Dario Carugo, Xunli Zhang
The translation of continuous-flow microreactor technology to the industrial environment has been limited by cost and complexity of the fabrication procedures and the requirement for specialised infrastructure. In the present study, we have developed a significantly cost-effective and easy-to-perform fabrication method for the generation of optically transparent, continuous-flow reactors. The method combines 3D printing of master moulds with sealing of the PDMS channels' replica using a pressure-sensitive adhesive tape...
February 6, 2018: New Biotechnology
https://www.readbyqxmd.com/read/29420400/customized-pessary-fabrication-using-three-dimensional-printing-technology
#14
Michael Barsky, Robert Kelley, Faiz Y Bhora, Anne Hardart
BACKGROUND: Pessaries are a treatment option for pelvic organ prolapse, stress urinary incontinence (SUI), and cervical incompetence. An effective pessary is comfortable, corrects the presenting problem, does not cause adverse effects, and is easy to remove. Discomfort and poor fit limit the usefulness of pessaries for many women. Each patient presents with unique anatomy and thus the effectiveness of commercially available pessaries may be limited by lack of customization. METHOD: A patient presenting with SUI and failed commercial pessary fittings desired nonsurgical treatment...
March 2018: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29416035/the-meniscus-guided-deposition-of-semiconducting-polymers
#15
REVIEW
Xiaodan Gu, Leo Shaw, Kevin Gu, Michael F Toney, Zhenan Bao
The electronic devices that play a vital role in our daily life are primarily based on silicon and are thus rigid, opaque, and relatively heavy. However, new electronics relying on polymer semiconductors are opening up new application spaces like stretchable and self-healing sensors and devices, and these can facilitate the integration of such devices into our homes, our clothing, and even our bodies. While there has been tremendous interest in such technologies, the widespread adoption of these organic electronics requires low-cost manufacturing techniques...
February 7, 2018: Nature Communications
https://www.readbyqxmd.com/read/29405589/development-of-clay-based-films
#16
REVIEW
Takeo Ebina
Phyllosilicate (clay) is used as a filler to improve the thermal stability and gas barrier properties of plastic films. However, few film preparation trials used clays as the main component. Many researchers have studied clay-based films (CBFs) that are heat-resistant and have high gas barrier properties against various gases (such as oxygen, water vapor, and hydrogen) over a wide range of temperatures. An organic binder improves the film toughness, but increases gas permeation. CBFs are obtained by solution casting and show excellent incombustibility and electrical insulation...
February 6, 2018: Chemical Record: An Official Publication of the Chemical Society of Japan ... [et Al.]
https://www.readbyqxmd.com/read/29405206/the-potential-of-3d-printing-in-urological-research-and-patient-care
#17
REVIEW
Marc Colaco, Daniel A Igel, Anthony Atala
3D printing is an evolving technology that enables the creation of unique organic and inorganic structures with high precision. In urology, the technology has demonstrated potential uses in both patient and clinician education as well as in clinical practice. The four major techniques used for 3D printing are inkjet printing, extrusion printing, laser sintering, and stereolithography. Each of these techniques can be applied to the production of models for education and surgical planning, prosthetic construction, and tissue bioengineering...
February 6, 2018: Nature Reviews. Urology
https://www.readbyqxmd.com/read/29405059/3d-bioprinting-of-low-concentration-cell-laden-gelatin-methacrylate-gelma-bioinks-with-two-step-crosslinking-strategy
#18
Jun Yin, Mengling Yan, Yancheng Wang, Jianzhong Fu, Hairui Suo
Methacrylated gelatin (GelMA) has been widely used as the tissue engineered scaffold material, but only low concentration GelMA hydrogels were found to be promising cell-laden bioinks with excellent cell viability. In this work, we reported a strategy for precisely deposition of 5% (w/v) cell-laden GelMA bioinks into controlled micro-architectures with high cell viability using extrusion-based three-dimensional (3D) bioprinting. By adding gelatin into GelMA bioinks, a two-step crosslinking combining the rapid and reversible thermo-crosslinking of gelatin with irreversible photo-crosslinking of GelMA was achieved...
February 6, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29404793/design-of-an-orthopedic-product-by-using-additive-manufacturing-technology-the-arm-splint
#19
Fernando Blaya, Pilar San Pedro, Julia López Silva, Roberto D'Amato, Enrique Soriano Heras, Juan Antonio Juanes
The traditional fabrication process of custom-made splints has hardly undergone any progress since the beginning of its use at the end of the eighteenth century. New manufacturing techniques and the new materials can help to modernize this treatment method of fractures. The use of Additive Manufacturing has been proposed in recent years as an alternative process for the manufacture of splints and there has been an increase in public awareness and exploration. For this reason, in this study a splint model printed in 3D, that replaces the deficiencies of the cast maintaining its virtues, has been proposed...
February 5, 2018: Journal of Medical Systems
https://www.readbyqxmd.com/read/29404520/liver-tissue-engineering-from-implantable-tissue-to-whole-organ-engineering
#20
REVIEW
Giuseppe Mazza, Walid Al-Akkad, Krista Rombouts, Massimo Pinzani
The term "liver tissue engineering" summarizes one of the ultimate goals of modern biotechnology: the possibility of reproducing in total or in part the functions of the liver in order to treat acute or chronic liver disorders and, ultimately, create a fully functional organ to be transplanted or used as an extracorporeal device. All the technical approaches in the area of liver tissue engineering are based on allocating adult hepatocytes or stem cell-derived hepatocyte-like cells within a three-dimensional structure able to ensure their survival and to maintain their functional phenotype...
February 2018: Hepatology Communications
keyword
keyword
14890
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"