Role of Au nanoparticle aggregation in laser induced anisotropy of ITO transparent substrates

2014 ◽  
Vol 585 ◽  
pp. 393-397 ◽  
Author(s):  
I.V. Kityk ◽  
J. Ebothe ◽  
N-B. Bercu ◽  
Md. Abdul Aziz ◽  
Munetaka Oyama
Author(s):  
Tereza ČERVENÁ ◽  
Andrea RÖSSNEROVÁ ◽  
Táňa ZÁVODNÁ ◽  
Kristýna VRBOVÁ ◽  
Jitka SIKOROVÁ ◽  
...  

Biosensors ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 184
Author(s):  
Syed Akif Raza Kazmi ◽  
Muhammad Zahid Qureshi ◽  
Jean-Francois Masson

In clinical chemistry, frequent monitoring of drug levels in patients has gained considerable importance because of the benefits of drug monitoring on human health, such as the avoidance of high risk of over dosage or increased therapeutic efficacy. In this work, we demonstrate that the drug doxycycline can act as an Au nanoparticle (doxy-AuNP) growth and capping agent to enhance the response of a surface plasmon resonance (SPR) biosensor for this drug. SPR analysis revealed the high sensitivity of doxy-AuNPs towards the detection of free doxycycline. More specifically, doxy-AuNPs bound with protease-activated receptor-1 (PAR-1) immobilized on the SPR sensing surface yield the response in SPR, which was enhanced following the addition of free doxy (analyte) to the solution of doxy-AuNPs. This biosensor allowed for doxycycline detection at concentrations as low as 7 pM. The study also examined the role of colloidal stability and growth of doxy-AuNPs in relation to the response-enhancement strategy based on doxy-AuNPs. Thus, the doxy-AuNPs-based SPR biosensor is an excellent platform for the detection of doxycycline and demonstrates a new biosensing scheme where the analyte can provide enhancement.


1996 ◽  
Vol 79 (8) ◽  
pp. 5342 ◽  
Author(s):  
C. A. Ross ◽  
M. E. Schabes ◽  
R. Ranjan ◽  
G. Bertero ◽  
T. Chen

2011 ◽  
Vol 23 (14) ◽  
pp. 3312-3317 ◽  
Author(s):  
Bridget Ingham ◽  
Teck H. Lim ◽  
Christian J. Dotzler ◽  
Anna Henning ◽  
Michael F. Toney ◽  
...  

2005 ◽  
Vol 72 (9) ◽  
Author(s):  
R. N. Bhowmik ◽  
R. Ranganathan ◽  
R. Nagarajan ◽  
Biswatosh Ghosh ◽  
S. Kumar

2015 ◽  
Vol 644 ◽  
pp. 31-34 ◽  
Author(s):  
Ján Ivančo ◽  
Karol Végsö ◽  
Peter Šiffalovič ◽  
Dmytro Kostiuk ◽  
Yurij Halahovets ◽  
...  

To examine perspectives of nanoparticle films in the role of active elements in strain sensors, morphological and electrical properties of self-assembled Au nanoparticle monolayer prepared by modified Langmuir-Schaefer technique onto supporting Mylar foil were studied under elongation. Along the probing of electrical response (characterized by the gauge factor of about 60), the small-angle x-ray scattering (SAXS) characterization assessed an average interparticle distance change, which was shown to vary proportionally to the substrate elongation. The approach allowed to unambiguously address the mechanism of the deformation-resistivity transduction.


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