scholarly journals Nanostructured Electrodes for Improved Neural Recording

2002 ◽  
Vol 729 ◽  
Author(s):  
Karen C. Cheung ◽  
Yang-Kyu Choi ◽  
Tim Kubow ◽  
Luke P. Lee
Keyword(s):  
Cell Culture ◽  
Surface Roughness ◽  
Aspect Ratio ◽  
High Aspect Ratio ◽  
Electrode Surface ◽  
Neural Recording ◽  
New Method ◽  
Nanostructured Electrodes

AbstractWe present a new method of increasing the effective electrode surface for improved neural recording. To optimize the electrode, the impedance can be decreased by introducing surface roughness or nanostructures on the electrode. High aspect ratio pillar-like polysilicon nanostructures are created in a reactive ion etch. Nanostructure robustness in cell culture is examined.

Lecithin blended polyamide-6 high aspect ratio nanofiber scaffolds via electrospinning for human osteoblast cell culture

2011 ◽  
Vol 31 (2) ◽  
pp. 486-493 ◽  
Author(s):  
R. Nirmala ◽  
Hye-Min Park ◽  
R. Navamathavan ◽  
Hyung-Sub Kang ◽  
Mohamed H. El-Newehy ◽  
...  
Keyword(s):  
Cell Culture ◽  
Aspect Ratio ◽  
High Aspect Ratio ◽  
Polyamide 6 ◽  
Human Osteoblast ◽  
Osteoblast Cell ◽  
Human Osteoblast Cell ◽  
Nanofiber Scaffolds

FABRICATION OF ARRAY MICROSTRUCTURES USING SERIAL AND PARALLEL LOCALIZED ELECTRODEPOSITION

2009 ◽  
Vol 08 (03) ◽  
pp. 323-332 ◽  
Author(s):  
RA'A SAID ◽  
NIDAL ALSHWAWREH ◽  
YOUSEF HAIK
Keyword(s):  
Tissue Engineering ◽  
Aspect Ratio ◽  
Antenna Arrays ◽  
High Aspect Ratio ◽  
High Frequency ◽  
Neural Recording ◽  
Single Step ◽  
Fabrication Technique ◽  
Ultra High Frequency

To add to the development efforts in enhancing the capabilities of localized electrodeposition (LED) fabrication technique, this paper presents serial and parallel deposition algorithms to fabricate array microstructures. Such arrays can be implemented as microsensors in neural recording applications or as antenna arrays in ultra high frequency applications. Also, magnetic tip microarrays for tissue engineering can be realized. In the case of serial fabrication, an array of high aspect ratio microstructures is realized using the conventional single-tip microelectrode while implementing a multistep fabrication algorithm. In this algorithm, the fabricated microstructure elements within the array are realized one at a time. In the parallel deposition algorithm, the array is realized using a multitip array microelectrode while implementing a single step fabrication algorithm. In this algorithm, the microstructure elements within the array are fabricated simultaneously. The proposed algorithms are compared through a demonstration of fabricated array microstructures.

Parameter Optimization for Grinding Process of Micropores with High Aspect Ratio

2015 ◽  
Vol 1095 ◽  
pp. 795-799
Author(s):  
Feng Che Tsai ◽  
Yann Long Lee ◽  
Ju Chun Yeh
Keyword(s):  
Surface Roughness ◽  
Aspect Ratio ◽  
Parameter Optimization ◽  
High Aspect Ratio ◽  
Grinding Process ◽  
Average Roughness ◽  
Abrasive Particles ◽  
Abrasive Jet Machining ◽  
Mix Proportion ◽  
Labor Consuming

Parameter optimization for grinding process of micropores with high aspect ratio is discussed in this research. To ensure the surface accuracy on the inner side of deep micropore, the manual polishing or reaming process is a commonly adopted method. However, this process has disadvantages of limitation by operators’ experience and technique, labor consuming, and high cost. Skilled operators are also difficult to train nowadays. In order to address those flaws, this study applied the subtle abrasive jet machining technology and Taguchi Method for experimental design, so as to effectively obtain the appropriate surface roughness and processing uniformity. The Taguchi experimental results showed that when applying a Vacuum Pressure of 60 cmHg and a Air Pressure of 0.5 Mpa, the optimal polishing effect was attained using #2000SiC abrasive particles and an Mix Proportion (SiC: Additive) 2: 1. The average roughness of lifting pin hole was reduced from an original value of Ra 2.39 mm (Rmax: 10.74 mm) to a final value of Ra 0.07 mm (Rmax: 1.10 mm).

A Novel Method to Fabricate High Aspect Ratio Microcoils

2014 ◽  
Vol 543-547 ◽  
pp. 600-603 ◽  
Author(s):  
Wen Jun Gu ◽  
Shi Sun ◽  
Xu Han Dai ◽  
Gui Fu Ding
Keyword(s):  
Aspect Ratio ◽  
High Aspect Ratio ◽  
New Method ◽  
Liga Technology ◽  
Novel Method

In this study, we developed a new method to fabricate microcoils with narrow and high aspect ratio coil lines using TSV and UV-LIGA technology in a SU-8 mold. The combination of SU-8 and TSV makes it possible to fabricate microstructures with high aspect ratio. TSV technology resolved the difficulties of electroplating with high aspect ratio. We designed and fabricated microcoils consisiting of coil lines with widths of 15μm and aspect ratio of 2.

New method and system of automatically moving a CMM probe tip into holes with submillimeter diameter and high aspect ratio

2021 ◽  
Vol 16 (06) ◽  
pp. P06042
Author(s):  
Z.-Y. Cheng ◽  
H. Luan ◽  
Y. Sun ◽  
R.-J. Li ◽  
H.-L. Li ◽  
...  
Keyword(s):  
Aspect Ratio ◽  
High Aspect Ratio ◽  
New Method

A novel high aspect ratio microfluidic design to provide a stable and uniform microenvironment for cell growth in a high throughput mammalian cell culture array

Lab on a Chip ◽  
2005 ◽  
Vol 5 (1) ◽  
pp. 44 ◽  
Author(s):  
Paul J. Hung ◽  
Philip J. Lee ◽  
Poorya Sabounchi ◽  
Nima Aghdam ◽  
Robert Lin ◽  
...  
Keyword(s):  
Cell Culture ◽  
Cell Growth ◽  
Aspect Ratio ◽  
Mammalian Cell ◽  
High Throughput ◽  
High Aspect Ratio ◽  
Mammalian Cell Culture

High-Aspect-Ratio SU-8-Based Optofluidic Device for Ammonia Detection in Cell Culture Media

ACS Sensors ◽  
2020 ◽  
Vol 5 (8) ◽  
pp. 2523-2529
Author(s):  
Esma Dervisevic ◽  
Nicolas H. Voelcker ◽  
Gail Risbridger ◽  
Kellie L. Tuck ◽  
Victor J. Cadarso
Keyword(s):  
Cell Culture ◽  
Aspect Ratio ◽  
High Aspect Ratio ◽  
Culture Media ◽  
Cell Culture Media ◽  
Ammonia Detection
Sign in / Sign up

Export Citation Format

Share Document