Dr. Subha Jana Profile

Dr. Subha Jana

at LPEM ESPCI/CNRS/SU UMR8213

SPIE Involvement:

Author

Publications (1)

This will count as one of your downloads.

You will have access to both the presentation and article (if available).

DOWNLOAD NOW

This content is available for download via your institution's subscription. To access this item, please sign in to your personal account.

Email or Username Forgot your username?

Password Forgot your password?

Show

Keep me signed in

No SPIE account? Create an account

Proceedings Article | 18 April 2021 Presentation

Biodetection with whispering quantum dots

Subha Jana, Andrey Klymchenko, Thomas Pons, Andreas Reisch

Proceedings Volume 11772, 1177204 (2021) https://doi.org/10.1117/12.2585563

KEYWORDS: Quantum dots, Energy transfer, Energy efficiency, Resonance energy transfer, Optical microcavities, Luminescence, Structural design, Quantum efficiency, Optical resonators, Optical design

Read Abstract +

Phenomenon like resonance energy transfer is widely utilized for many bio-detection schemes where biomolecules actively bind to optical donor and acceptor labeled antibodies to form “sandwich complexes” but the large size of these complexes limits the efficiency of energy transfer, preventing sensitive detection which leads to false outcomes of the tests. In our project, we propose to improve the efficiency of energy transfer through the use of solution-phase optical microcavities. We have designed a novel optical donor that should be capable of performing the energy transfer efficiently over larger distances than the traditional resonance energy transfer limit. We have designed structures where colloidal fluorescent quantum dots (QDs) are precisely located inside dielectric microspheres and the fluorescence of the quantum dots is trapped inside the optical cavities via total internal reflections leading to optical resonances known as whispering gallery modes and the tuning of the experimental parameters will allow us to maximize the coupling of the fluorescence emission of QDs to the modes to achieve the best efficiency of the system. Following the fabrication of the optical donor, we have introduced highly absorbing dye nanoparticles as optical acceptors in the evanescent field of the microcavities and characterized the efficiency of the energy transfer through the optical modes. Now we are developing a technique to impart bio-specificity to the microbeads to detect biomolecules of interest with improved sensitivity and simple methodology.

My Library

You currently do not have any folders to save your paper to! Create a new folder below.

Folder Name

Folder Description

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks. You are receiving this notice because your organization may not have SPIE eBooks access.*

*Shibboleth/Open Athens users─please sign in to access your institution's subscriptions.

To obtain this item, you may purchase the complete book in print or electronic format on SPIE.org.

ORGANIZATIONAL
Sign in with credentials provided by your organization.

Organizational Username

Organizational Password

Show/Hide Password

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members:

Non-members: ADD TO CART

Keywords/Phrases

Search In:

Publication Years