PolluCell
The 3M Young Scientist Challenge lists one winner for each year, and against 2014 it records Sahil Doshi and PolluCell, described as electricity generation from waste materials. The research record compiled for this page describes the same project as a battery powered by waste and carbon dioxide emissions.
Both descriptions point the same way: an energy source whose input is something currently treated as a cost. Neither the listing nor the record explains the chemistry, the output, the scale at which it was demonstrated, or whether it moved past a prototype.
Three years of energy winners
Doshi's win sits in the middle of a run of energy projects at the top of the competition. In 2015 Hannah Herbst won with an ocean energy probe intended to produce power and fresh water. In 2016 Maanasa Mendu won with a piezoelectric device to improve the efficiency of wind power.
Three consecutive winners built machines to generate electricity from something that was already moving or already discarded. It is a fair index of what middle-school inventors in the mid-2010s judged to be the problem worth solving, and the competition's own list is the record of it.
What the title means
America's Top Young Scientist is awarded once a year to one entrant in a national competition for middle-school students. There is no category split and no shared first place, so the title identifies a single project from a country-wide field.
The challenge's published record of that decision is a name and a one-line description of the invention. It is authoritative on the outcome and silent on everything else, which is the shape of almost every student science award: the competition documents its own verdict and nothing more.
The wider list
The same page places PolluCell in a sequence that stretches from Peyton Robertson's salt-water sandbag in 2013 through Gitanjali Rao's Tethys lead detector in 2017, Rishab Jain's artificial-intelligence work on pancreatic cancer radiotherapy in 2018 and Kara Fan's nanoparticle liquid bandage in 2019.
Later winners continued the pattern: Anika Chebrolu's molecular docking work on a COVID-19 antiviral in 2020, Sarah Park's AI-personalised music therapy in 2021, Leanne Fan's phototherapy headphones in 2022, Heman Bekele's melanoma-treating soap in 2023, Sirish Subash's handheld pesticide detector in 2024 and Kevin Tang's fall-detection system in 2025.
What is documented — and what is not
The firm facts are the year, the title and the invention, as published by the competition: America's Top Young Scientist for 2014, for PolluCell.
The gaps are everything else. No age, grade, school, home town or photograph appears in the source used here, no technical description, no measured output, no prize amount and no quotation. There is no follow-up reporting either, so nothing establishes what became of PolluCell or of Doshi after 2014.
| Person | Country | Milestone | Age / Stat |
|---|---|---|---|
| Sawsan Ahmed | United States | Broward College's youngest graduate, at 12, in December 2021 | Age 12 |
| Arvind Mahankali | United States | Won the 2013 Scripps National Spelling Bee at 13 | Age 13 |
| Kerry Close | United States | Won the 2006 Scripps National Spelling Bee at 13 | Age 13 |
| Shania Muhammad | United States | Langston University's youngest graduate, at 15 | Age 15 |
| Sahil Doshi | United States | America's Top Young Scientist, 2014 | — |
What is documented — and what is not
✓ Documented
- Named America's Top Young Scientist in the 2014 3M Young Scientist Challenge (official winners listing)
- Winning entry named PolluCell, described as electricity generation from waste materials
- The challenge names one winner a year
? Unverified, disputed or wrong
- No technical description, chemistry or measured output for PolluCell
- The carbon dioxide element appears in the research record but not in the official listing as read
- No age, school, home town, prize amount or follow-up reporting
Questions people ask about Sahil Doshi
What is PolluCell?
Sahil Doshi's winning entry in the 2014 3M Young Scientist Challenge, described by the competition as electricity generation from waste materials.
Does it use carbon dioxide?
The research record for this page describes it as a battery powered by waste and carbon dioxide emissions. The official listing says only that it generates electricity from waste materials.
How old is Sahil Doshi?
No source in this record gives his age or date of birth.
What did he win?
The title of America's Top Young Scientist, awarded once a year to a single winner of the national challenge.
Is Sahil Doshi on Wikipedia?
No Wikipedia article was found for him. The challenge's official winners page is the primary published record.
Did PolluCell go into production?
No source in this record states that it did. The listing records a competition result, not a commercial product.
Who won in the years either side?
Peyton Robertson in 2013 with a salt-water sandbag, and Hannah Herbst in 2015 with an ocean energy probe.
Where is Sahil Doshi now?
No source in this record says. The official listing ends at the award.
Quick quiz: how well do you know Doshi’s story?
What was Sahil Doshi's invention called?
What does the challenge say it generates electricity from?
In which year did he win?
Sources
- Young Scientist Lab — past winners of the 3M Young Scientist Challenge — 3M Young Scientist Challenge (official)
Checked by the Geniuses.club editorial team. Ages are given as of September 2026.
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