Dr. Brandy J. Johnson Profile

Dr. Brandy J. Johnson

at Naval Research Lab

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 | 5 May 2009 Paper

Porphyrin-embedded organosilicas for detection and decontamination

Brandy Johnson, Brian Melde, Paul Charles, Anthony Malanoski

Proceedings Volume 7306, 73060E (2009) https://doi.org/10.1117/12.819875

KEYWORDS: Luminescence, Metals, Catalysis, Magnesium, Iron, Natural surfaces, Analog electronics, Absorbance, Adsorption, Molecules

Read Abstract +

Porphyrin-embedded materials (PEMs) combine the tunable binding selectivity, high surface area, and low materials density of a highly ordered pore network with the unique properties of porphyrins. Porphyrins are a family of large, nearly planar molecules which strongly absorb visible light and fluoresce intensely. They are highly sensitively to alterations in their immediate environment making porphyrins valuable as indicators. They are well established electroand photocatalysts and have been used in this capacity in a wide range of applications. Surfactant-templated nanoporous organosilicas have great potential for the adsorption of small molecule contaminants. They can be synthesized with high surface areas, uniform pore dimensions, and ordered nanostructures while incorporating organic bridging groups in the pore walls that may be tuned for adsorption of a specific class of compounds. In the porphyrin-embedded materials, the organosilica scaffold stabilizes the porphyrin and facilitates optimal orientation of porphyrin and target. The materials can be stored under ambient conditions and offer exceptional shelf-life. The selectivity of the materials can be controlled both through incorporation of varying organic bridging groups in the organosilica structure and through selection of the porphyrin component.

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