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Judith Su @judithsu.bsky.social · 3d

Honored that our work on label-free optical mapping of single 5-nm quantum dots using our photothermal-based FLOWER platform was selected for inclusion in Optics & Photonics News’ Year in Optics 2025 issue.
Here is the link to the original paper: www.nature.com/articles/s41...

Single 5-nm quantum dot detection via microtoroid optical resonator photothermal microscopy - Light: Science & Applications

We demonstrate ultra-sensitive photothermal microscopy with whispering gallery mode microtoroid resonators, detecting single 5 nm quantum dots with SNR > 104 and achieving a minimum heat dissipation detection of 0.75 pW, which is below that from single dye molecules.

www.nature.com

Judith Su @judithsu.bsky.social · 18d

I’m excited to be visiting Caltech in October! I’ll be giving a seminar on Thursday, October 2 at 4 pm in Gates Annex B122. I look forward to meeting people there and furthering mutual research interests through discussion.

www.caltech.edu/campus-life-...

Informal Biochemistry Seminar

Fast, Ultrasensitive, Label-Free Molecular Detection with FLOWER

www.caltech.edu

Reposted by Judith Su

ChemComm @chemcomm.rsc.org · Sep 4

Featured #OnTheCover of issue 72 of ChemComm!

"FLOWER: a frequency-locked optical whispering evanescent resonator for label-free molecular detection" by Yichi Zhang and @judithsu.bsky.social from @uarizona.bsky.social

Read the full Feature article here 👉 buff.ly/Eu7rbah

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Judith Su @judithsu.bsky.social · Sep 3

Thrilled to share that our team under the leadership of Prineha Narang (UCLA) has been selected as a Stage 1 Winner of the
NIH Quantum Sensing Technology Challenge.

Read the announcement here: www.challenge.gov?challenge=ni...

Challenge.gov

Challenge.gov is the official government website supporting prize challenges and prize competitions that are sponsored by the US federal government. Here federal agencies provide prize awards to publi...

www.challenge.gov

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Judith Su @judithsu.bsky.social · Aug 11

Glad to share our latest article which is part of Chem. Comm' 2025 Emerging Investigators collection. The article focuses on my past and current research and puts it in perspective. I appreciate all my lab members, collaborators, and sponsors who made this possible:

pubs.rsc.org/en/content/a...

FLOWER: A Frequency-Locked Optical Whispering Evanescent Resonator for Label-Free Molecular Detection

The ability to detect trace amounts of biomolecules, chemicals, and environmental contaminants is critical for advancing diagnostics, drug discovery, and public health. Most high-sensitivity detection...

pubs.rsc.org

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Judith Su @judithsu.bsky.social · Jul 29

Glad to share our latest work entitled: Free-space-coupled, frequency-locked microtoroid sensor for part-per-trillion detection of mustard gas simulant. I appreciate our collaborators (Brian Stoltz and Euan McLeod) and talented associates.

chemrxiv.org/engage/chemr...

Free-space-coupled, frequency-locked microtoroid sensor for part-per-trillion detection of mustard gas simulant

Sulfur mustard remains a serious chemical warfare threat, but its extreme toxicity complicates sensor development. As a chemically and physically similar simulant, 2-chloroethyl ethyl sulfide (2-CEES)...

chemrxiv.org

Judith Su @judithsu.bsky.social · Jul 24

Panelists:
Gilberto Brambilla, Uni of Southampton, UK
Sergio Carbajo, UCLA, USA
Tanya Myers, Pacific Northwest National Lab, USA
Lukasz Sterczewski, Wroclaw University of Science and Technology, Poland
Judith Su, UArizona, USA (joining remotely)
John Williams, Boeing Research & Technology, USA

Judith Su @judithsu.bsky.social · Jul 24

Moderators:
Amy Bauer, Ocean Insights, Germany
Aparajita Bandyopadhyay, IIT Delhi, India
Jennifer Choy, Uni of Wisconsin (Madison), USA (joining remotely)

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Judith Su @judithsu.bsky.social · Jul 24

I'm glad to participate in this moderated panel discussion this morning at the @optica.org Sensing Congress:
"Precision Versus Price-Point: Core Driver of the Sensing Domain"
When: Thursday, 24 July 08:00 - 09:30
Where: International I, II, Hilton Long Beach

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Judith Su @judithsu.bsky.social · Jul 16

It was an honor to present to Winnie Ye the Robert E. Hopkins Leadership Award at @optica.org's 2025 Integrated Photonics Research conference (IPR) 2025 in Marseille. Congratulations on this wonderful achievement! #AdvancedPhotonicsCongress

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Judith Su @judithsu.bsky.social · Jun 21

I discuss how optical frequency combs are opening up new frontiers in biosensing, diagnostics, and environmental monitoring and how interdisciplinary collaboration is key to translating this technology into real-world tools.
The article highlights our recent incubator meeting and roadmap efforts.

Judith Su @judithsu.bsky.social · Jun 21

Happy to share my article in Optics & Photonics News:

www.optica-opn.org/home/article...

Thanks to Optica for the opportunity and to my amazing co-organizers (Prineha Narang and Bruce Hay) and colleagues!

Frequency Combs for Chemistry, Biology and Medicine

Judith Su explains how optical frequency combs can provide new insights into molecular diagnostics and disease mechanisms.

www.optica-opn.org

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Judith Su @judithsu.bsky.social · May 27

www.msn.com/en-gb/health...

MSN

www.msn.com

Judith Su @judithsu.bsky.social · May 10

Thanks!

Judith Su @judithsu.bsky.social · May 9

I look forward to learning more about the exposome and building a collaborative network to help accomplish this mission.

Judith Su @judithsu.bsky.social · May 9

I'm optimistic that integrating state-of-the-art optical sensors and AI will revolutionize our ability to track key health biomarkers and environmental exposures, ultimately driving improvements in long-term health.

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Judith Su @judithsu.bsky.social · May 9

Next week, I'll be attending the Exposome Moonshot Forum (exposomemoonshot.org) in Washington, D.C. as a steering committee member, contributing to the development of the Human Exposome Project.

Exposome Moonshot Forum

Toward whole human health

exposomemoonshot.org

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Judith Su @judithsu.bsky.social · May 4

Judith Su @judithsu.bsky.social · May 2

Glad to share our latest paper on optical biosensors for diagnosing neurodegenerative diseases: www.nature.com/articles/s44...
@natureportfolio.nature.com @uazbio5.bsky.social

Optical biosensors for diagnosing neurodegenerative diseases - npj Biosensing

npj Biosensing - Optical biosensors for diagnosing neurodegenerative diseases

www.nature.com

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Judith Su @judithsu.bsky.social · Apr 30

Getting ready for #CLEO2025 in Long Beach! I’m co-chairing the Biomedical Applications sub-committee, giving an invited talk in Environmental Sensing, and speaking at a panel on Smart Optics + AI/Quantum metrology. Excited to reconnect & catch the latest in photonics!

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Reposted by Judith Su

University of Arizona BIO5 Institute @uazbio5.bsky.social · Apr 25

BIO5 member Judith Su @judithsu.bsky.social builds ultra-sensitive optical sensors to detect disease at the molecular level. At Behind BIO5, she shared how a passion for microscopic worlds led to breakthroughs in early diagnosis and cross-disciplinary innovation.

Read more: bio5.org/news/meet-sc...

Judith Su speaking into a microphone at the 'Meet the Scientists' event, with a quote about interdisciplinary collaboration on the background banner titled Behind BIO5.

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Judith Su @judithsu.bsky.social · Mar 27

Enjoyed the gathering and discussions on Chemical and Biological Defense at the 2025 Gordon Research Conference in Ventura, California, during our spring break.

Judith Su @judithsu.bsky.social · Mar 23

I am very excited about visiting Caltech on Sat. 03/29/2025 to speak at the Materials and Process Simulation Center Conference (www.caltech.edu/campus-life-...) in celebration of Bill Goddard's 88th birthday! Looking forward to connecting with fellow researchers and sharing our latest advances.

Materials and Process Simulation Center Conference 2025 (MSC2 2025)

Materials and Process Simulatiom Center Conference 2025 (MSC2 2025)

www.caltech.edu

Judith Su @judithsu.bsky.social · Jan 22

Thanks for working with us on this and sharing the story about your visit! I haven’t been but would like to go some day.

Judith Su @judithsu.bsky.social · Jan 14

Glad that our latest paper has generated interest and has been selected to be featured on Nature Protocol's website.

@natureportfolio.bsky.social @uarizona.bsky.social @spie.org @optica.bsky.social

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