On the use of organic semiconductors as handles for optical tweezers experiments: trapping and manipulating polyaniline (PANI) microparticles

Here we propose the use of the organic semiconductor polyaniline (PANI) for the preparation of spherical-shaped microparticles to serve as handles in optical tweezers (OT) experiments. The stable trapping and manipulation of PANI beads was demonstrated for the first time, using a Gaussian (\(TEM_{00...

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Published in:arXiv.org 2023-03
Main Authors: Oliveira, Kairon M, Moura, Tiago A, Lucas, Janaisa L C, Alvaro V N C Teixeira, Rocha, Marcio S, Mendes, Joaquim B S
Format: Article
Language:English
Subjects:
Beads
Gaussian beams (optics)
Microparticles
Optical properties
Organic semiconductors
Polyanilines
Stiffness
Trapping
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Moura, Tiago A
Lucas, Janaisa L C
Alvaro V N C Teixeira
Rocha, Marcio S
Mendes, Joaquim B S
description Here we propose the use of the organic semiconductor polyaniline (PANI) for the preparation of spherical-shaped microparticles to serve as handles in optical tweezers (OT) experiments. The stable trapping and manipulation of PANI beads was demonstrated for the first time, using a Gaussian (\(TEM_{00}\)) beam optical tweezers. The trap stiffness was characterized for various different parameters such as the bead radius, the laser power and the distance between the bead and the coverslip of the sample chamber, attesting the viability of using such material for optical manipulation. Since the effective optical properties of PANI can be modulated by the synthesis process, new related applications are also proposed. The results of the present work therefore open the door for using semiconductor polymeric materials in OT applications.
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subjects Beads
Gaussian beams (optics)
Microparticles
Optical properties
Organic semiconductors
Polyanilines
Stiffness
Trapping
title On the use of organic semiconductors as handles for optical tweezers experiments: trapping and manipulating polyaniline (PANI) microparticles
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