Optical Techniques For In-Situ, Real-Time Detection Of Laser-Induced Damage

1988 ◽  
Author(s):  
P M. Fauchet ◽  
I H. Campbell
Keyword(s):  
Real Time ◽  
Optical Techniques ◽  
Real Time Detection ◽  
Laser Induced Damage

Adsorption-Induced Surface Effects on the Dynamical Characteristics of Micromechanical Resonant Sensors for In Situ Real-Time Detection

2016 ◽  
Vol 83 (8) ◽  
Author(s):  
Kai-Ming Hu ◽  
Wen-Ming Zhang ◽  
Xi Shi ◽  
Han Yan ◽  
Zhi-Ke Peng ◽  
...  
Keyword(s):  
Kinetic Model ◽  
Real Time ◽  
Surface Effects ◽  
Detection Sensitivity ◽  
Dynamical Model ◽  
Time Varying ◽  
Resonant Sensors ◽  
Label Free Detection ◽  
Real Time Detection

By incorporating modified Langmuir kinetic model, a novel slowly time-varying dynamical model of in situ micromechanical sensors is proposed to real-time monitor atomic or molecular adsorptions on the solid surface in a viscous fluid. First, Langmuir kinetic model is modified by the introduction of time-varying concentrations of analytes. Second, van der Waals (vdW), Coulomb, and biomolecular interactions for uncharged adsorbates, charged ones, and double-stranded DNAs (dsDNAs) are adopted, respectively, to develop the governing equation of time-varying vibrational systems with Hamilton's principle. It can be found that the adsorption-induced surface effects are incorporated into the dynamical equation of sensors due to real-time adsorptions. Third, the dynamical model is validated with the theoretical results of O atoms on Si (100) surface and the experimental data of dsDNAs interactions. The results show that the dynamical behavior is adsorption-induced slowly time-varying vibration due to the time-varying effective mass, stiffness, damping, and equilibrium positions of the microcantilevers. Moreover, comparing the modified Langmuir kinetic model with the unmodified model, the amplitude and phase hysteresis phenomena of frequency shift for resonant sensors can result in huge detection errors. In addition, the fluid effect can dramatically degrade the sensitivity and precision of real-time detection by several orders, which can provide a theoretical foundation to improve the detection sensitivity by reducing the fluid effect. The work demonstrates that it is essential to develop a time-varying dynamical model for in situ real-time label-free detection technique.

In situ, real-time detection of soot particles coated with NaCl using 193 nm light

2006 ◽  
Vol 84 (3) ◽  
pp. 385-388
Author(s):  
J.H. Choi ◽  
C.B. Stipe ◽  
C.P. Koshland ◽  
D. Lucas
Keyword(s):  
Real Time ◽  
Soot Particles ◽  
Real Time Detection ◽  
193 Nm

In situ real-time detection of E. coli in water using antibody-coated magnetostrictive microcantilever

2010 ◽  
Vol 150 (1) ◽  
pp. 220-225 ◽  
Author(s):  
Liling Fu ◽  
Kewei Zhang ◽  
Suiqiong Li ◽  
Yuhong Wang ◽  
Tung-Shi Huang ◽  
...  
Keyword(s):  
Real Time ◽  
E Coli ◽  
Real Time Detection

scholarly journals Luminescent CeO2:Eu3+ nanocrystals for robust in situ H2O2 real-time detection in bacterial cell cultures

2019 ◽  
Vol 132 ◽  
pp. 286-293 ◽  
Author(s):  
Dorian F. Henning ◽  
Padryk Merkl ◽  
Changhun Yun ◽  
Federico Iovino ◽  
Ling Xie ◽  
...  
Keyword(s):  
Real Time ◽  
Cell Cultures ◽  
Bacterial Cell ◽  
Real Time Detection

scholarly journals In Situ Synthesis of SERS-Active Au@POM Nanostructures in a Microfluidic Device for Real-Time Detection of Water Pollutants

2020 ◽  
Vol 12 (32) ◽  
pp. 36458-36467 ◽  
Author(s):  
Marta Lafuente ◽  
Ismael Pellejero ◽  
Alberto Clemente ◽  
Miguel A. Urbiztondo ◽  
Reyes Mallada ◽  
...  
Keyword(s):  
Real Time ◽  
Microfluidic Device ◽  
In Situ Synthesis ◽  
Water Pollutants ◽  
Real Time Detection
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