Mr. Xuesong Gao Profile

Xuesong Gao

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 | 12 March 2024 Poster + Paper

Nanoparticle release and sorting from a soft surface by using an opto-thermal-mechanical approach

Xuesong Gao, Imad Agha

Proceedings Volume 12842, 128420W (2024) https://doi.org/10.1117/12.3001657

KEYWORDS: Polymethylmethacrylate, Receivers, Gold nanoparticles, Nanoparticles, Scanning electron microscopy, Photomicroscopy, Optical properties, Glasses, Continuous wave operation, Beam diameter

Read Abstract +

This letter presents a method for the release and sorting of gold nanoparticles (AuNP) from a soft substrate with an optothermal mechanical (OTM) method. The OTM method relies on the heating of AuNPs on a soft substrate via a continuous-wave laser. An AuNP absorbs the energy from the focused beam and transfers the heat to the substrate beneath it. The induced heat causes a rapid thermal expansion of the substrate, imparting an impulse to the AuNP and releasing it from the substrate. The release of an AuNP from a PMMA substrate of different thicknesses is studied. The release angle is determined by the polymer surface thickness, which affects the printing accuracy. Therefore, the release of an AuNP from a soft substrate of different thicknesses is investigated. The heat that can be generated within an AuNP depends on its size upon absorption. Generally, a smaller AuNP needs higher laser intensity to overcome the Van der Waal force to be released from the substrate. Therefore, the mixed sizes of AuNPs can be selected and sorted by their different release threshold. In this paper, the successful sorting of two types of AuNPs from a substrate to a receiver substrate in air condition is demonstrated. The OTM method paves a new way to separate and purify nanoparticles directly in a gaseous environment.

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