A Simple Method for Producing Free-Standing, OpticallyDense Aluminium Foils with Randomly Distributed 100-nm Physical Through Holes for Biomedical Applications

2007 ◽  
Vol 3 (3) ◽  
pp. 289-290
Author(s):  
Jana Doehner ◽  
Dave Schriemer ◽  
Matthias Amrein
Keyword(s):  
Biomedical Applications ◽  
Free Standing ◽  
Simple Method

scholarly journals Large-scale fabrication of free-standing and sub-μm PDMS through-hole membranes

Nanoscale ◽  
2018 ◽  
Vol 10 (16) ◽  
pp. 7711-7718 ◽  
Author(s):  
Hai Le-The ◽  
Martijn Tibbe ◽  
Joshua Loessberg-Zahl ◽  
Marciano Palma do Carmo ◽  
Marinke van der Helm ◽  
...  
Keyword(s):  
Biomedical Applications ◽  
Large Scale ◽  
Free Standing ◽  
Simple Method ◽  
Through Hole

A robust and simple method was developed for large-scale fabrication of free-standing and sub-μm PDMS through-hole membranes for biomedical applications.

Formability of Hydroxyapatite on Beta-Type Ti-Nb-Ta-Zr Alloy for Biomedical Applications through Alkaline Treatment Process

2007 ◽  
Vol 352 ◽  
pp. 297-300
Author(s):  
Toshikazu Akahori ◽  
Mitsuo Niinomi ◽  
Masaaki Nakai
Keyword(s):  
Alkaline Solution ◽  
Biomedical Applications ◽  
Treatment Process ◽  
Solution Treatment ◽  
Sodium Titanate ◽  
Alkaline Treatment ◽  
Simple Method ◽  
Metallic Biomaterials ◽  
Naoh Solution ◽  
Bioactive Surface Modification

Titanium and its alloys have been widely used as biomaterials for hard tissue replacements because of their excellent mechanical properties and biocompatibility. However, the bonding between their surfaces and bone is not enough after implantation. The bioactive surface modification such as a hydroxyapatite (HAp) coating on their surfaces has been investigated. Recently, a simple method for forming HAp layer on the surfaces of titanium and its alloys has been developed. This method is called as alkaline treatment process. In this method, HAp deposits on the surfaces of titanium and its alloys by dipping into simulated body fluid (SBF) after an alkaline solution treatment that is followed by a baking treatment (alkaline treatment). This process is applicable to newly developed beta-type Ti-29Nb-13Ta-4.6Zr alloy (TNTZ) for biomedical applications achieving bioactive HAp modification. In this study, the morphology of the HAp layer formed on the surface of TNTZ was investigated after various alkaline treatments followed by dipping in SBF. The formability of HAp on the surface of TNTZ was then discussed. The formability of HAp on TNTZ is much lower than that of commercially pure Ti, Ti-6Al-4V ELI and Ti-15Mo-5Zr-3Al alloys, which are representative metallic biomaterials. The formability of HAp on TNTZ is improved by increasing the amount of Na in the sodium titanate gels formed during an alkaline solution treatment where the NaOH concentrations and the dipping time are over 5 M and 172.8 ks, respectively. The formability of HAp on TNTZ is considerably improved by dipping in a 5 M NaOH solution for 172.8 ks. This condition for alkaline solution treatment process is the most suitable for TNTZ.

Plasma assisted deposition of free-standing nanofilms for biomedical applications

2016 ◽  
Vol 13 (12) ◽  
pp. 1224-1229 ◽  
Author(s):  
Daniela Pignatelli ◽  
Eloisa Sardella ◽  
Fabio Palumbo ◽  
Chiara Lo Porto ◽  
Silvia Taccola ◽  
...  
Keyword(s):  
Biomedical Applications ◽  
Free Standing

scholarly journals Simple Method to Improve Electrical Conductivity of Films Made from Single-Walled Carbon Nanotubes

Nanomaterials ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 1113 ◽  
Author(s):  
Bogumiła Kumanek ◽  
Tomasz Wasiak ◽  
Grzegorz Stando ◽  
Paweł Stando ◽  
Dariusz Łukowiec ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Electrical Conductivity ◽  
Single Walled Carbon Nanotubes ◽  
Simple Approach ◽  
Sonication Time ◽  
Free Standing ◽  
Simple Method ◽  
New Approach ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes

Despite the widespread use of sonication for individualization of nanomaterials, its destructive nature is rarely acknowledged. In this study, we demonstrated how exposure of the material to a hostile sound wave environment can be limited by the application of another preprocessing step. Single-walled carbon nanotubes (CNTs) were initially ground in a household coffee grinder, which enabled facile deagglomeration thereof. Such a simple approach enabled us to obtain high-quality CNT dispersion at reduced sonication time. Most importantly, electrical conductivity of free-standing films prepared from these dispersion was improved almost fourfold as compared with unground material eventually reaching 1067 ± 34 S/cm. This work presents a new approach as to how electrical properties of nanocarbon ensembles may be enhanced without the application of doping agents, the presence of which is often ephemeral.

Self-standing non-noble metal (Ni–Fe) oxide nanotube array anode catalysts with synergistic reactivity for high-performance water oxidation

2015 ◽  
Vol 3 (13) ◽  
pp. 7179-7186 ◽  
Author(s):  
Zhenlu Zhao ◽  
Haoxi Wu ◽  
Haili He ◽  
Xiaolong Xu ◽  
Yongdong Jin
Keyword(s):  
Noble Metal ◽  
Water Oxidation ◽  
High Performance ◽  
Free Standing ◽  
Simple Method ◽  
Nanotube Array ◽  
Fe Oxide ◽  
Anode Catalysts ◽  
Electrocatalytic Performance ◽  
Array Electrode

A free-standing non-noble metal Ni–Fe oxide nanotube array electrode for water oxidation, with synergistically enhanced electrocatalytic performance, has been fabricated using a simple method.

scholarly journals Surface modification and cellular uptake evaluation of Au-coated Ni 80 Fe 20 nanodiscs for biomedical applications

2016 ◽  
Vol 6 (6) ◽  
pp. 20160052 ◽  
Author(s):  
Gabriele Barrera ◽  
Loredana Serpe ◽  
Federica Celegato ◽  
Marco Coїsson ◽  
Katia Martina ◽  
...  
Keyword(s):  
Biomedical Applications ◽  
Vortex Formation ◽  
Fluorescein Isothiocyanate ◽  
Gold Surface ◽  
Gold Layer ◽  
Temperature Hysteresis ◽  
Free Standing ◽  
Self Assembling ◽  
Polystyrene Nanospheres ◽  
Nanofabrication Technique

A nanofabrication technique based on self-assembling of polystyrene nanospheres is used to obtain magnetic Ni 80 Fe 20 nanoparticles with a disc shape. The free-standing nanodiscs (NDs) have diameter and thickness of about 630 nm and 30 nm, respectively. The versatility of fabrication technique allows one to cover the ND surface with a protective gold layer with a thickness of about 5 nm. Magnetization reversal has been studied by room-temperature hysteresis loop measurements in water-dispersed free-standing NDs. The reversal shows zero remanence, high susceptibility and nucleation/annihilation fields due to spin vortex formation. In order to investigate their potential use in biomedical applications, the effect of NDs coated with or without the protective gold layer on cell growth has been evaluated. A successful attempt to bind cysteine-fluorescein isothiocyanate (FITC) derivative to the gold surface of magnetic NDs has been exploited to verify the intracellular uptake of the NDs by cytofluorimetric analysis using the FITC conjugate.

A simple method to prepare superhydrophobic polypropylene coatings for biomedical applications

2014 ◽  
Vol 7 (3/4) ◽  
pp. 156 ◽  
Author(s):  
Rafik Abbas ◽  
Wagih A. Sadik ◽  
Abdel Ghaffar M. El Demerdash ◽  
Adel F. Badria
Keyword(s):  
Biomedical Applications ◽  
Simple Method

SiC for Biomedical Applications

2016 ◽  
Vol 858 ◽  
pp. 1010-1014 ◽  
Author(s):  
Stephen E. Saddow ◽  
Christopher L. Frewin ◽  
Fabiola Araujo Cespedes ◽  
Marioa Gazziro ◽  
Evans Bernadin ◽  
...  
Keyword(s):  
Silicon Carbide ◽  
Biomedical Applications ◽  
Glucose Monitoring ◽  
Wide Band ◽  
Neural Interfaces ◽  
Free Standing ◽  
Wide Band Gap ◽  
Custom Made ◽  
Biological World ◽  
Machine Interface

Silicon carbide is a well-known wide-band gap semiconductor traditionally used in power electronics and solid-state lighting due to its extremely low intrinsic carrier concentration and high thermal conductivity. What is only recently being discovered is that it possesses excellent compatibility within the biological world. Since publication of the first edition of Silicon Carbide Biotechnology: A Biocompatible Semiconductor for Advanced Biomedical Devices and Applications five years ago [1], significant progress has been made on numerous research and development fronts. In this paper three very promising developments are briefly highlighted – progress towards the realization of a continuous glucose monitoring system, implantable neural interfaces made from free-standing 3C-SiC, and a custom-made low-power ‘wireless capable’ four channel neural recording chip for brain-machine interface applications.

scholarly journals Insulating and semiconducting polymeric free-standing nanomembranes with biomedical applications

2015 ◽  
Vol 3 (29) ◽  
pp. 5904-5932 ◽  
Author(s):  
Maria M. Pérez-Madrigal ◽  
Elaine Armelin ◽  
Jordi Puiggalí ◽  
Carlos Alemán
Keyword(s):  
Conducting Polymers ◽  
Biomedical Applications ◽  
Free Standing

Free-standing nanomembranes, which are emerging as versatile elements in biomedical applications, are evolving from being composed of insulating (bio)polymers to electroactive conducting polymers.

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