Water-based synthesis and processing of novel biodegradable elastomers for medical applications

2014 ◽  
Vol 2 (31) ◽  
pp. 5083-5092 ◽  
Author(s):  
Shan-hui Hsu ◽  
Kun-Che Hung ◽  
Ying-Yi Lin ◽  
Chiu-Hun Su ◽  
Hsi-Yi Yeh ◽  
...  
Keyword(s):  
Biodegradable Materials ◽  
Medical Applications ◽  
Tunable Properties ◽  
Water Based ◽  
Potential Applications ◽  
Synthesis And Processing ◽  
Bulk Scale

Novel biodegradable nanoelastomers are synthesized. They can self-assemble and generate morphologies in nanometric, micrometric, or bulk scale with tunable properties. They are smart biodegradable materials with potential applications.

scholarly journals A Brief Review on Challenges in Design and Development of Nanorobots for Medical Applications

2021 ◽  
Vol 11 (21) ◽  
pp. 10385
Author(s):  
Gautham Giri ◽  
Yaser Maddahi ◽  
Kourosh Zareinia
Keyword(s):  
Drug Delivery ◽  
Human Health ◽  
Data Transmission ◽  
Medical Applications ◽  
Design And Development ◽  
Navigation Data ◽  
Innovative Idea ◽  
Potential Applications ◽  
Scale Down ◽  
Manufacturing Techniques

Robotics is a rapidly growing field, and the innovative idea to scale down the size of robots to the nanometer level has paved a new way of treating human health. Nanorobots have become the focus of many researchers aiming to explore their many potential applications in medicine. This paper focuses on manufacturing techniques involved in the fabrication of nanorobots and their associated challenges in terms of design architecture, sensors, actuators, powering, navigation, data transmission, followed by challenges in applications. In addition, an overview of various nanorobotic systems addresses different architectures of a nanorobot. Moreover, multiple medical applications, such as oncology, drug delivery, and surgery, are reviewed and summarized.

Crossmodal correspondences between chemosensory stimuli and musical notes

2012 ◽  
Vol 25 (0) ◽  
pp. 72
Author(s):  
Anne-Sylvie Crisinel ◽  
Charles Spence
Keyword(s):  
Musical Instruments ◽  
Crossmodal Correspondences ◽  
Musical Note ◽  
Water Based ◽  
Different Types ◽  
Potential Applications ◽  
Series Of Experiments ◽  
Components Analysis ◽  
Psychological Dimensions

We report a series of experiments investigating crossmodal correspondences between various food-related stimuli (water-based solutions, milk-based flavoured solutions, crisps, chocolate and odours) and sounds varying in pitch and played by four different types of musical instruments. Participants tasted or smelled stimuli before matching them to a musical note. Our results demonstrate that participants preferentially match certain stimuli to specific pitches and instrument types. Through participants’ ratings of the stimuli along a number of dimensions (e.g., pleasantness, complexity, familiarity or sweetness), we explore the psychological dimensions involved in these crossmodal correspondences, using principal components analysis (PCA). While pleasantness seems to play an important role in the choice of instrument associated with chemosensory stimuli, the pitch seems to also depend on the quality of the taste (bitter, salty, sour or sweet). The level at which such crossmodal correspondences might occur, as well as the potential applications of such results, will be discussed.

Water-based, surfactant-free cytocompatible nanoparticle-microgel-composite biomaterials – rational design by laser synthesis, processing into fiber pads and impact on cell proliferation

2017 ◽  
Vol 18 (3-4) ◽  
Author(s):  
Nina Million ◽  
Vincent Coger ◽  
Philipp Wilke ◽  
Christoph Rehbock ◽  
Peter M. Vogt ◽  
...  
Keyword(s):  
Cell Proliferation ◽  
Rational Design ◽  
Iron Nanoparticles ◽  
Aqueous Synthesis ◽  
Laser Synthesis ◽  
Water Based ◽  
Synthesis And Processing ◽  
Composite Biomaterials

AbstractThis work highlights the laser-based aqueous synthesis and processing of nanocomposites, composed of zinc or iron nanoparticles embedded in a

scholarly journals Biodegradable Materials for Medical Applications II

JOM ◽  
2020 ◽  
Vol 72 (5) ◽  
pp. 1830-1832
Author(s):  
Jaroslaw W. Drelich ◽  
Malgorzata Sikora-Jasinska ◽  
Ehsan Mostaed ◽  
Huinan Liu ◽  
Petra Maier ◽  
...  
Keyword(s):  
Biodegradable Materials ◽  
Medical Applications

scholarly journals Synthesis and characterization of PZT 52/48 ceramics without additives througt nanomertric powder

2021 ◽  
Vol 26 (2) ◽  
Author(s):  
Jaime Alberto Sanchez Caceres ◽  
Carlos Augusto Carlos Passos ◽  
João Victor Soares Chagas
Keyword(s):  
Synthesis Method ◽  
Ferroelectric Materials ◽  
Ferroelectric Ceramics ◽  
Mean Grain Size ◽  
Potential Applications ◽  
Synthesis And Processing ◽  
Electrical Permittivity ◽  
Ferroelectric Hysteresis ◽  
The Cost

ABSTRACT Lead zirconatetitanate solid solutions, Pb(Zr1-xTix)O3 – PZT, are widely recognized for representing a special group of ferroelectric materials with various potential applications in electroceramics and (micro)electronic devices. The PZT ceramics is produced by solid state reaction (conventional route) and temperatures frequently above 1200 °C. As a consequence, the cost of ceramic product is expensive. Herein, we present the synthesis and processing conditions of PZT52/48 (x = 0.48) ceramics in which it was possible to lower the sintering temperature down to around 900°C. We have applied a route for PZT52/48 obtaining ferroelectric ceramics through sintering of nanometric powders prepared by the polymeric precursor synthesis method (modified Pechini’s method). The sintering was achieved with a temperature of 900ºC for 2 hours and the samples got 96% of their theoretical density and 1.3 mm mean grain size. The electrical permittivity of the ceramic plates, studied by impedance spectroscopy, presented Curie temperature around 390 ºC. Ferroelectric hysteresis measurements revealed that the remnant polarization is 3.2 μC/cm2 and coercive field is 10 kV/cm at 60 Hz. All results and characterizations have shown that the PZT samples obtained with the polymeric route are efficient as the ones prepared in the conventional SSR protocol.

Self-Assembly of Organic-Inorganic Nanocomposite Coatings that Mimic the Structure of Shell

1998 ◽  
Vol 519 ◽  
Author(s):  
Alan Sellinger ◽  
Pilar M. Weiss ◽  
Anh Nguyen ◽  
Yunfeng Lu ◽  
Roger A. Assink ◽  
...  
Keyword(s):  
Self Assembly ◽  
Dip Coating ◽  
Thermal Polymerization ◽  
Shell Structures ◽  
Polymer Thin Film ◽  
Potential Applications ◽  
Synthesis And Processing ◽  
Inorganic Nanocomposites ◽  
Ether Solvents ◽  
Thin Film Nanocomposite

AbstractAfter over a decade of research, the efficient synthesis and processing of layered organic/inorganic nanocomposites that mimic bone and shell structures remains an elusive goal of the materials chemist. We report on a rapid, efficient, continuous method to form layered nanocomposites via evaporation induced supramolecular self-assembly (SSA). During dip coating of a homogeneous sol containing alcohol or ether solvents, silica precursors, organic monomers, initiators and surfactant (at an initial concentration below cmc), solvent evaporation induces the formation of micellar structures that co-organize with silica to form cubic, hexagonal or lamellar mesophases. The organic monomers and initiators are solvated within the hydrophobic micellar interiors. Subsequent photo or thermal polymerization and washing results in a silica/polymer thin film nanocomposite. The microstructural and physical characteristics of these materials will be discussed in the context of potential applications as abrasion resistant coatings and optical hosts.

scholarly journals Crosslinking of hydrophilic polymers using polyperoxides

2020 ◽  
Vol 298 (12) ◽  
pp. 1699-1713
Author(s):  
Solomiia Borova ◽  
Victor Tokarev ◽  
Philipp Stahlhut ◽  
Robert Luxenhofer
Keyword(s):  
Mechanical Properties ◽  
Mechanical Performance ◽  
Soft Materials ◽  
Hydrophilic Polymers ◽  
Medical Applications ◽  
Crucial Importance ◽  
New Materials ◽  
Toxic Compounds ◽  
Crosslinking Process ◽  
Potential Applications

Abstract Hydrogels that can mimic mechanical properties and functions of biological tissue have attracted great interest in tissue engineering and biofabrication. In these fields, new materials and approaches to prepare hydrogels without using toxic starting materials or materials that decompose into toxic compounds remain to be sought after. Here, we report the crosslinking of commercial, unfunctionalized hydrophilic poly(2-ethyl-2-oxazoline) using peroxide copolymers in their melt. The influence of temperature, peroxide copolymer concentration, and duration of the crosslinking process has been investigated. The method allows to create hydrogels from unfunctionalized polymers in their melt and to control the mechanical properties of the resulting materials. The design of hydrogels with a suitable mechanical performance is of crucial importance in many existing and potential applications of soft materials, including medical applications.

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