Effect of the ionic-strength of the gating-solution on a bioelectronic response

被引：0

作者：

Macchia, Eleonora ^{[1
,2
]}

Manoli, Kyriaki ^{[1
]}

Holtzer, Brigitte ^{[1
]}

Di Franca, Cinzia ^{[3
]}

Torricelli, Fabrizio ^{[4
]}

Picca, Rosaria Anna ^{[1
]}

Palazzo, Gerardo ^{[1
]}

Scamarcio, Gaetano ^{[5
]}

Torsi, Luisa ^{[1
]}

机构：

[1] Univ Bai Aldo Moro, Dipartimento Chim, Bari, Italy

[2] Abo Akad Univ, Fac Sci & Engn, Turku, Finland

[3] CNR, Ist Foton & Nanotecnol, Bari, Italy

[4] Univ Brescia, Dipartimento Ingn Informaz, Brescia, Italy

[5] Univ Bari Aldo Moro, Dipartimento Fis M Merlin, Bari, Italy

来源：

2019 IEEE 8TH INTERNATIONAL WORKSHOP ON ADVANCES IN SENSORS AND INTERFACES (IWASI) | 2019年

关键词：

Electrolyte-Gated Thin-Film-Transistors; Single Molecule detection with a Transistor - SiMoT; LABEL-FREE;

D O I：

10.1109/iwasi.2019.8791318

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Bioelectronic organic transistors have been recently proposed as a disruptive wide-field label-free single-molecule biosensing technology. Key relevant for this millimetric sized electrolyte-gated field-effect-transistor is a self-assembled-monolayer attached to the gate comprising a highly-packed layer of recognition elements. Here a dedicated study of the FET sensing response as a function of the salinity of the electrolyte solution is proposed. It has been demonstrated that the device response is dramatically reduced at high ionic strength and this offer the rationale for choosing to operate the device in pure water where the Debye length, lambda(D), is 100 nm.

引用

页码：221 / 223

页数：3

共 5 条

[1] Addressing the challenge of solution gating in biosensors based on field-effect transistors
Garika, Vijay
Babbar, Shubham
Samanta, Soumadri
Harilal, Sherina
Eisenberg-Lerner, Avital
Rotfogel, Ziv
Pikhay, Evgeny
Shehter, Inna
Elkayam, Ayala
Bashouti, Muhammad Y.
Akabayov, Barak
Ron, Izhar
Hazan, Guy
Roizin, Yakov
Shalev, Gil
BIOSENSORS & BIOELECTRONICS, 2024, 265
[2] The Effect of Ionic Strength on the Sensing Performance of Liquid-Gated Biosensors
Wu, Guangfu
Tang, Xin
Lin, Zihong
Meyyappan, Meyya
Lai, King Wai Chiu
2017 IEEE 17TH INTERNATIONAL CONFERENCE ON NANOTECHNOLOGY (IEEE-NANO), 2017, : 242 - 245
[3] Effects of Ionic Strength and Probe DNA Length on the Electrochemical Impedance Spectroscopic Response of Biosensors
Revenga-Parra, Monica
Garcia, Tania
Pariente, Felix
Lorenzo, Encarnacion
Alonso, Concepcion
ELECTROANALYSIS, 2011, 23 (01) : 100 - 107
[4] Direct label-free protein detection in high ionic strength solution and human plasma using dual-gate nanoribbon-based ion-sensitive field-effect transistor biosensor
Ma, Shenhui
Li, Xin
Lee, Yi-Kuen
Zhang, Anping
BIOSENSORS & BIOELECTRONICS, 2018, 117 : 276 - 282
[5] The role of polarization-induced reorientation of DNA strands on organic field-effect transistor-based biosensors sensitivity at high ionic strength
Lai, S.
Barbaro, M.
Bonfiglio, A.
APPLIED PHYSICS LETTERS, 2015, 107 (10)

← 1 →