As the tissue engineering and drug delivery communities place greater emphasis on producing constructs of prescribed geometry and organization, three-dimensional printing is becoming as an increasingly important technique. While numerous tissue printing techniques have emerged, little has been done to characterize the properties of printing inks and the resultant effects on geometric fidelity, ...

watermarking, halftone printing, printing security, dithering This report concerns embedding of watermarks into dither halftoning. The basic idea is to use a sequence of two dither matrices (instead of one) to encode the watermark. Assuming a specific distribution of the input image leads to an optimal decoding algorithm, and an optimal dither matrix pair matching. Finally, an example is given,...

Digital printing systems are widely established in traditional as well as in newer companies oriented toward print media production and publishing. The establishment and the operation of digital printing systems within these companies is undertaken with the aims of entering new markets, gaining new customers and increasing profit. In particular, innovative digital printing characteristics such ...

We demonstrate the production of organic bottom gate transistors with self-aligned electrodes, using only continuous roll-to-roll (R2R) techniques. The self-alignment allows accurate <5 μm layer-to-layer registration, which is usually a challenge in high-speed R2R environments as the standard registration methods are limited to the millimeter range—or, at best, to tens of μm if online cameras a...

-31Abstract — The unexpected appearance of 3D printing has caught many of technology analyst by surprise. In this paper we aim to provide a social context to the feedback loops that have generated this rapid evolution of technologies and skills involved in 3D printing, as well as and online communities related with 3D printing and the impact of this evolution on media an popular imaginary... an...

During the last couple of years several ink manufacturers have presented metal nano-particle inks for inkjet printing. These inks provide low resistances on plastic and paper substrates, thus enabling manufacturing of high-conductivity conductors that could be used in circuit boards. Inkjet printing of a commercial silver nano-particle ink on paper and plastic substrates has been investigated. ...

In this paper we consider some cryptographic implications of integrated circuit (IC) printing. While still in its infancy, IC-printing allows the production and personalisation of circuits at very low cost. In this paper we present two block ciphers PRINTcipher-48 and PRINTcipher-96 that are designed to exploit the properties of IC-printing technology and we further extend recent advances in li...

Figure 1. a, Schematic of the “solution-shearing” printing method (inset shows chemical structure of TIPS-pentacene). b–d, Optical micrographs (cross-polarized) of solutionsheared TIPS-pentacene thin films, fabricated at different printing speeds. The printing speed and the electrical performance of the films in thin film transistor devices are listed below each of the images. Copyright Nature ...

The prototyping of tissue-engineered bone scaffold (calcined goat spongy bone-biphasic ceramic composite/PVA gel) by 3D printing was performed, and the biocompatibility of the fabricated bone scaffold was studied. Pre-designed STL file was imported into the GXYZ303010-XYLE 3D printing system, and the tissue-engineered bone scaffold was fabricated by 3D printing using gel extrusion. Rabbit bone ...

3D printing, first created in 1984 for rapid industrial prototyping [1], has evolved to providing a platform to produce complex anatomic models, device prototypes, and models for pre-surgical planning. Radiology plays a key role in the advances of 3D printing uses and technologies in medicine as the evolution of high resolution scans have paved the way for these types of applications. This arti...