

# Event Details

- **Event Name**: Silicon Metasurfaces for DNA Synthesis
- **Event Start and End Date**: Thu, 19 Mar, 2026 at 11:30 am – Thu, 19 Mar, 2026 at 01:15 pm
- **Event Description**: Punnag Padhy; Postdoctoral Scholar in the Department of Materials Science and Engineering at Stanford UniversityAbout this EventSan Francisco Bay Area IEEE Nanotechnology Council2020, 2017 &amp; 2014 Nanotechnology Council Outstanding Chapter (world-wide)2019, 2016 &amp; 2014 IEEE Outstanding Chapter (Western USA)2019, 2016 IEEE Outstanding Chapter (Santa Clara Valley)Silicon Metasurfaces for DNA SynthesisDr. Punnag PadhyPostdoctoral ScholarDepartment of Materials Science and EngineeringStanford UniversityIn-Person MeetingThursday, March 19, 202611:30 AM: Networking, Pizza &amp; DrinksNoon -- 1 pm: Seminar--------Please register on Eventbrite before 9:30 AM on Thursday, March 19, 2026Walk-In attendance is welcomed but discouraged (cash or check; no credit cards)Please assist us in our event planning!If you decide not to attend... - please cancel reservations by 8:00 AM on Thursday, ** Tickets cancelled by 8 AM on March 19, 2026 will have payments refunded*** Note: Eventbrite Fees will not be refundedDay of Event Sign In &amp; Registration Information:Please be prepared to present a Photo ID when entering EAG and signing in for the seminar. (Driver's license, or another government issued identification).Registration information now also includes attendee Citizenship .Location:EAG Laboratories810 Kifer Road, Sunnyvale==&gt; Use corner entrance: Kifer Road / San Lucar Court==&gt; Do not enter at main entrance on Kifer Road(Parking: on street or in parking lot behind EAG)  https://cdn-az.allevents.in/events8/banners/57f04860-1755-11f1-abd5-e70abe7c6535-rimg-w534-h740-dc020101-gmir.png Abstract:Silicon Metasurfaces for DNA SynthesisReady access to long, accurate, and diverse synthetic DNA is essential for the rapid growth of synthetic biology — a field that genetically programs living cells with new functions. Modern microarray-based DNA synthesizers can generate diverse pools of oligonucleotide (single stranded DNA) sequences in parallel. However, each sequence is produced in limited quantity, and their yields decline with increasing oligo length due to cumulative synthesis errors. These limitations complicate downstream sequence segregation and gene assembly. Attempts to address these challenges by enlarging and spacing synthesis sites farther apart reduce the total number of sequences that can be generated simultaneously, thereby compromising synthesis diversity.In this talk, I will introduce B-MOS (Metasurface Oligonucleotide Synthesizer for Engineered Biology) — a novel platform that integrates silicon nanophotonics with solid-phase DNA synthesis to overcome these challenges.B-MOS employs dielectric metasurfaces composed of arrays of high-index and low loss silicon nanoantennas (metasurfaces) patterned on glass as optically programmable synthesis sites. The unique optical signature of each metasurface — its spectral and polarization response — is lithographically encoded into the geometry and orientation of the silicon nanoantennas. Under global illumination, only the metasurface tuned to the wavelength and polarization of the laser absorbs the optical energy and transduces it into highly localized heat to site-selectively activate the synthesis reactions. Tuning the laser enables switching between the synthesis sites without moving parts or complex optical projection systems that lead to alignment errors.As these nanostructures support sharp (high-Q) optical resonances, crosstalk between the synthesis sites is minimized. These sharp resonances allow the dense spectral packing of independently addressable synthesis within the tunable range of the laser, thereby maximizing synthesis diversity.Using temperature as a programmable biochemical control knob, I will demonstrate site-selective enzymatic incorporation of fluorescent nucleotides onto surface-bound DNA using the enzyme terminal deoxynucleotidyl transferase. I will further discuss how integrating B-MOS with microfluidics can enable post-synthesis site-selective amplification and spatial segregation of oligo strands for reliable gene assembly.Finally, I will outline how B-MOS can be extended to RNA and peptide synthesis as well as other enzyme-driven processes. By resonant nanophotonics with programmable biochemical control, B-MOS establishes a scalable physical foundation for high-precision biomolecular manufacturing and next-generation molecular technologies.Read more:1. Temperature bandgaps in silicon metasurfaces: https://arxiv.org/abs/2511.120382. About the tech in Stanford HIT fund portfolio: https://otl.stanford.edu/researchers/high-impact-technology-hit-fund/hit-portfolio%23physicalsciences/engineered-biology3. Recent review article on DNA synthesis: https://www.nature.com/articles/s41570-022-00456-9  https://cdn-az.allevents.in/events3/banners/582b2e80-1755-11f1-965e-5553f2ff6f23-rimg-w1200-h675-dcffffff-gmir.jpg Speaker Bio:Dr. Punnag PadhyPostdoctoral ScholarDepartment of Materials Science and EngineeringStanford UniversityPunnag Padhy is a Postdoctoral Scholar in the Department of Materials Science and Engineering at Stanford University, advised by Prof. Jennifer Dionne.He received his B.S. in Electrical Engineering from the Indian Institute of Technology Bhubaneswar before moving to Stanford University for graduate studies. Working under the supervision of Prof. Lambertus Hesselink in the Department of Electrical Engineering, he demonstrated dielectrophoretic transport of microparticles across immiscible fluidic interfaces. By solving this long-standing challenge in trapping and micromanipulation his research enabled the droplet-microfluidic implementation of solid-phase DNA synthesis.Motivated by a deep interest in fundamentals of light–matter and their applications in developing scalable tools for biomolecular analysis, control, manipulation and synthesis, he joined the lab of Prof. Jennifer Dionne for postdoctoral research. There, he is developing the B-MOS (Metasurface Oligonucleotide Synthesizer for Engineered Biology) platform while also investigating fundamental questions surrounding photothermal nonlinearities in metasurfaces. The potential of B-MOS has been recognized through support from the Stanford High Impact Technology (HIT) Fund.If you have questions or problems with your registration, please contact * Please help us manage our event planning. When we have many walk-in attendees, it is difficult for us to order the proper amount of food for lunch.** Tickets cancelled by 8 AM on March 19, will have payments refunded*** Note: Eventbrite Fees will not be refunded  https://cdn-az.allevents.in/events4/banners/585f0fc0-1755-11f1-abd5-e70abe7c6535-rimg-w1200-h675-dcffffff-gmir.jpg When it comes to understanding the physical structure, chemical properties and performance of advanced materials and integrated circuitry, no other scientific services company offers the breadth of experience, diversity of analytical techniques or technical ingenuity of EAG Laboratories. We deliver multi-disciplinary, problem-solving expertise to help our customers accelerate innovation, ensure quality and safety, and protect intellectual property.
- **Event URL**: https://allevents.in/sunnyvale/silicon-metasurfaces-for-dna-synthesis/100001984177904525
- **Event Categories**: workshops, it, contests, meetups
- **Interested Audience**: 
  - total_interested_count: 0

## Ticket Details

- **Ticket URL**: https://consumer.pxf.io/c/1339408/3151484/39691?partnerpropertyid=1191892&MediaPartnerPropertyId=1191892&svlink=14105511&level=1&u=https%3A%2F%2Fwww.eventbrite.com%2Fe%2Fsilicon-metasurfaces-for-dna-synthesis-tickets-1984177904525
- **Ticket Price Range**: min: 4, max: 6, currency: USD

## Event venue details

- **city**: Sunnyvale
- **state**: CA
- **country**: United States
- **location**: EAG Laboratories
- **lat**: 37.3743736
- **long**: -122.0128029
- **full address**: EAG Laboratories, 810 Kifer Road, Sunnyvale, United States

## Event Organizer details

- **affiliate_id**: 10
- **organizer**: IEEE SFBA Nanotechnology Council Chapter (https://allevents.in/org/ieee-sfba-nanotechnology-council-chapter/17636325)

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## FAQs

- **Q**: When is the event happening?
  - **A:** Thu, 19 Mar, 2026 at 11:30 am
- **Q**: Where is the event happening?
  - **A:** EAG Laboratories, 810 Kifer Road, Sunnyvale, United States
- **Q**: What is the ticket price?
  - **A:** starting from 4 up to 6 USD
- **Q**: Who is organizing the event?
  - **A:** IEEE SFBA Nanotechnology Council Chapter
- **Q**: What type of event is this?
  - **A:** workshops, it, contests, meetups
- **Q**: Where can I find ticket details about Silicon Metasurfaces for DNA Synthesis ?
  - **A:** You can find ticket details about this event on AllEvents.

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