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Fluctuations in transient response of adsorption-based plasmonic sensors

Authorized Users Only
2014
Authors
Jakšić, Olga
Jakšić, Zoran
Čupić, Željko
Randjelović, Danijela
Kolar-Anić, Ljiljana
Article (Published version)
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Abstract
The basic parameters of a sensor element defining its ultimate performance are sensitivity and intrinsic noise. In plasmonic gas sensors both are determined by refractive index changes due to adsorption and desorption (a-d) of target analyte particles to the sensor active area. In this paper we present a general model that can be simultaneously used to determine sensitivity and intrinsic noise of a plasmonic sensor both during transients and in steady-state and is valid for multi-analyte environments. The model utilizes the conventional probabilistic approach. It is derived without any assumptions about the stochastic nature of the fundamental (a-d) process. It reveals how all stochastic properties of the processes with (pseudo) first order kinetics with the initial number of particles equal to zero can be fully determined from the deterministic solution, without any previous stochastic analysis. Based on the proposed model it is possible to establish the optimum moment for readout whe...n fluctuations are minimal. Transients last longer and fluctuations are lower at lower temperatures. The insight into the transient dynamics opens the possibility to use a single element sensor for multiple analyte sensing. Another result is that a-d noise is higher for smaller adsorption areas, which may be important for micro and nanosystems generally, since each of them has to be kept immersed in some kind of environment and thus be subject to contamination by adsorption that can significantly influence their behavior. Besides being applicable for plasmonic sensors of trace amounts of gases and other nanoplasmonic devices used in sensing, the model is applicable for other adsorption-based sensors, as well as for the investigations of stochastic phenomena in micro and nanostructures.

Keywords:
Adsorption / Desorption / Plasmonic sensor / Gas sensor / Noise / Stochastic analysis
Source:
Sensors and Actuators, B: Chemical, 2014, 190, 419-428
Publisher:
  • Elsevier
Funding / projects:
  • Micro- Nanosystems and Sensors for Electric Power and Process Industry and Environmental Protection (RS-32008)
  • Nanostructured Functional and Composite Materials in Catalytic and Sorption Processes (RS-45001)
  • Dynamics of nonlinear physicochemical and biochemical systems with modeling and predicting of their behavior under nonequilibrium conditions (RS-172015)

DOI: 10.1016/j.snb.2013.08.084

ISSN: 0925-4005

WoS: 000326687700056

Scopus: 2-s2.0-84884835774
[ Google Scholar ]
14
16
URI
https://cer.ihtm.bg.ac.rs/handle/123456789/1497
Collections
  • Radovi istraživača / Researchers' publications
Institution/Community
IHTM
TY  - JOUR
AU  - Jakšić, Olga
AU  - Jakšić, Zoran
AU  - Čupić, Željko
AU  - Randjelović, Danijela
AU  - Kolar-Anić, Ljiljana
PY  - 2014
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1497
AB  - The basic parameters of a sensor element defining its ultimate performance are sensitivity and intrinsic noise. In plasmonic gas sensors both are determined by refractive index changes due to adsorption and desorption (a-d) of target analyte particles to the sensor active area. In this paper we present a general model that can be simultaneously used to determine sensitivity and intrinsic noise of a plasmonic sensor both during transients and in steady-state and is valid for multi-analyte environments. The model utilizes the conventional probabilistic approach. It is derived without any assumptions about the stochastic nature of the fundamental (a-d) process. It reveals how all stochastic properties of the processes with (pseudo) first order kinetics with the initial number of particles equal to zero can be fully determined from the deterministic solution, without any previous stochastic analysis. Based on the proposed model it is possible to establish the optimum moment for readout when fluctuations are minimal. Transients last longer and fluctuations are lower at lower temperatures. The insight into the transient dynamics opens the possibility to use a single element sensor for multiple analyte sensing. Another result is that a-d noise is higher for smaller adsorption areas, which may be important for micro and nanosystems generally, since each of them has to be kept immersed in some kind of environment and thus be subject to contamination by adsorption that can significantly influence their behavior. Besides being applicable for plasmonic sensors of trace amounts of gases and other nanoplasmonic devices used in sensing, the model is applicable for other adsorption-based sensors, as well as for the investigations of stochastic phenomena in micro and nanostructures.
PB  - Elsevier
T2  - Sensors and Actuators, B: Chemical
T1  - Fluctuations in transient response of adsorption-based plasmonic sensors
VL  - 190
SP  - 419
EP  - 428
DO  - 10.1016/j.snb.2013.08.084
ER  - 
@article{
author = "Jakšić, Olga and Jakšić, Zoran and Čupić, Željko and Randjelović, Danijela and Kolar-Anić, Ljiljana",
year = "2014",
abstract = "The basic parameters of a sensor element defining its ultimate performance are sensitivity and intrinsic noise. In plasmonic gas sensors both are determined by refractive index changes due to adsorption and desorption (a-d) of target analyte particles to the sensor active area. In this paper we present a general model that can be simultaneously used to determine sensitivity and intrinsic noise of a plasmonic sensor both during transients and in steady-state and is valid for multi-analyte environments. The model utilizes the conventional probabilistic approach. It is derived without any assumptions about the stochastic nature of the fundamental (a-d) process. It reveals how all stochastic properties of the processes with (pseudo) first order kinetics with the initial number of particles equal to zero can be fully determined from the deterministic solution, without any previous stochastic analysis. Based on the proposed model it is possible to establish the optimum moment for readout when fluctuations are minimal. Transients last longer and fluctuations are lower at lower temperatures. The insight into the transient dynamics opens the possibility to use a single element sensor for multiple analyte sensing. Another result is that a-d noise is higher for smaller adsorption areas, which may be important for micro and nanosystems generally, since each of them has to be kept immersed in some kind of environment and thus be subject to contamination by adsorption that can significantly influence their behavior. Besides being applicable for plasmonic sensors of trace amounts of gases and other nanoplasmonic devices used in sensing, the model is applicable for other adsorption-based sensors, as well as for the investigations of stochastic phenomena in micro and nanostructures.",
publisher = "Elsevier",
journal = "Sensors and Actuators, B: Chemical",
title = "Fluctuations in transient response of adsorption-based plasmonic sensors",
volume = "190",
pages = "419-428",
doi = "10.1016/j.snb.2013.08.084"
}
Jakšić, O., Jakšić, Z., Čupić, Ž., Randjelović, D.,& Kolar-Anić, L.. (2014). Fluctuations in transient response of adsorption-based plasmonic sensors. in Sensors and Actuators, B: Chemical
Elsevier., 190, 419-428.
https://doi.org/10.1016/j.snb.2013.08.084
Jakšić O, Jakšić Z, Čupić Ž, Randjelović D, Kolar-Anić L. Fluctuations in transient response of adsorption-based plasmonic sensors. in Sensors and Actuators, B: Chemical. 2014;190:419-428.
doi:10.1016/j.snb.2013.08.084 .
Jakšić, Olga, Jakšić, Zoran, Čupić, Željko, Randjelović, Danijela, Kolar-Anić, Ljiljana, "Fluctuations in transient response of adsorption-based plasmonic sensors" in Sensors and Actuators, B: Chemical, 190 (2014):419-428,
https://doi.org/10.1016/j.snb.2013.08.084 . .

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