التفاصيل البيبلوغرافية
| العنوان: |
Multi-Wire Tri-Gate Silicon Nanowires Reaching Milli-pH Unit Resolution in One Micron Square Footprint |
| المؤلفون: |
Enrico Accastelli, Paolo Scarbolo, Thomas Ernst, Pierpaolo Palestri, Luca Selmi, Carlotta Guiducci |
| المصدر: |
Biosensors, Vol 6, Iss 1, p 9 (2016) |
| بيانات النشر: |
MDPI AG, 2016. |
| سنة النشر: |
2016 |
| المجموعة: |
LCC:Biotechnology |
| مصطلحات موضوعية: |
silicon nanowires, tri-gate transistors, ISFET, pH sensors, 1/f noise, Biotechnology, TP248.13-248.65 |
| الوصف: |
The signal-to-noise ratio of planar ISFET pH sensors deteriorates when reducing the area occupied by the device, thus hampering the scalability of on-chip analytical systems which detect the DNA polymerase through pH measurements. Top-down nano-sized tri-gate transistors, such as silicon nanowires, are designed for high performance solid-state circuits thanks to their superior properties of voltage-to-current transduction, which can be advantageously exploited for pH sensing. A systematic study is carried out on rectangular-shaped nanowires developed in a complementary metal-oxide-semiconductor (CMOS)-compatible technology, showing that reducing the width of the devices below a few hundreds of nanometers leads to higher charge sensitivity. Moreover, devices composed of several wires in parallel further increase the exposed surface per unit footprint area, thus maximizing the signal-to-noise ratio. This technology allows a sub milli-pH unit resolution with a sensor footprint of about 1 µm2, exceeding the performance of previously reported studies on silicon nanowires by two orders of magnitude. |
| نوع الوثيقة: |
article |
| وصف الملف: |
electronic resource |
| اللغة: |
English |
| تدمد: |
2079-6374 |
| Relation: |
http://www.mdpi.com/2079-6374/6/1/9; https://doaj.org/toc/2079-6374 |
| DOI: |
10.3390/bios6010009 |
| URL الوصول: |
https://doaj.org/article/96656843069c40f593176156f6a5e847 |
| رقم الانضمام: |
edsdoj.96656843069c40f593176156f6a5e847 |
| قاعدة البيانات: |
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