Rico Chi Kit Sou pipetting in the lab in graduation gown
PhD Candidate · Chemistry · University of Cambridge

At the interception of light and biology.

I design artificial cells for new-to-nature photosynthesis — and teach protein language models to read and write the code of fluorescence.

NAMERico Chi Kit Sou
FIELDChem · Synbio · ML
BASECambridge, UK
01About

My work lives where light meets life — building cells that have never existed, to capture light in ways evolution never tried.

I'm a doctoral researcher at the University of Cambridge, in the Department of Chemistry, reimagining photosynthesis from first principles: synthetic compartments engineered to intercept light and drive new-to-nature chemistry.

Before Cambridge I trained across four labs and three continents — nanobody screening at Harvard, protein nanopore engineering at Oxford, photoenzymes at Manchester, and cell-free synthetic biology at Tsinghua — and increasingly at the frontier of machine learning for biology, fine-tuning protein language models to understand and design fluorescent proteins.

Across all of it I'm chasing the same thing: the elegant translation of light into life.

02Selected Work
Publications
2026

FluorCode: a language model for fluorescent proteins

ICML 2026 Workshop · AI for Science — first author

A LoRA fine-tune of ESM2 that learns the grammar of fluorescent proteins. GitHub ↗

2024

Cell-free biocatalysis coupled with photo- and electro-catalysis: efficient CO₂-to-chemical conversion

Green Energy & Environment · Yang, Sou (co-first), Lu* · cover article

A harmonized hybrid of physical, chemical, and biological catalysis for CO₂ valorization.

2022

Soft magnetic microrobot doped with porous silica for stability-enhanced multimodal locomotion

ACS Applied Materials & Interfaces · Li et al., Lu*

Contributing author (listed as Zhijie Su).

03Experience & Skills
Download CV (PDF) ↓
Oct 2025 — 2029

PhD student, Chemistry

University of Cambridge

Chemical & synthetic biology — artificial cells for new-to-nature photosynthesis: compartments that intercept light and drive non-natural chemistry.

Jul — Oct 2024

Undergrad Researcher — Nanobody Screening

Harvard University · David Weitz Lab

High-throughput discovery of nanobodies by templated emulsification for neuroblastoma therapies — CDR-randomized generic libraries, genotype–phenotype association in droplets, and click-chemistry bioconjugation of hydrogel beads.

Jul — Dec 2023

Undergrad Researcher — Protein Nanopore Engineering

University of Oxford · Yujia Qing & Hagan Bayley Lab

Extended long β-barrel nanopores for protein sensing: electrophysiology and single-channel recording, expression and purification of Protective Antigen, and bioinformatic pore design.

Feb — Jun 2023

Undergrad Researcher — Photoenzymes

University of Manchester · Nigel Scrutton Lab

Engineered fatty-acid photodecarboxylase to convert fatty acids into fuels under blue light — broadened substrate scope (C4–C12) and built real-time CO₂/NADPH kinetic assays.

Sep 2022 — Feb 2023

Researcher — Cell-free Synthetic Biology

Tsinghua University · Yuan Lu Lab

Built an enzymatic CO₂-fixation pathway driven by thylakoid NADPH/ATP regeneration and quantum-dot photocatalysis, with MOF-immobilized enzymes for long-term illumination.

2020 — 2025

BEng, Chemical & Biological Engineering

Tsinghua University

Department of Chemical Engineering.

Skills

Wet Lab

  • Protein expression & purification
  • Microfluidics · droplets
  • Click chemistry
  • Cryo-EM · confocal microscopy
  • PCR · gel electrophoresis
  • Enzyme kinetics · LC-MS

Computing

  • Python
  • MATLAB · C++
  • COMSOL
  • LaTeX
  • PyTorch · ESM2 · LoRA

Software & Design

  • SnapGene
  • AlphaFold · ChimeraX · PyMOL
  • BioRender · Blender
  • Illustrator · Photoshop

Languages

  • English
  • Cantonese
  • Mandarin
04Writing
soon

Teaching a model the language of light

soon

What a cell would do, if it had never met the sun

soon

Four labs, three continents: a research diary

06Cinema

To be announced soon.

I also have an Actor dream

Contact

Please don't hesitate to reach out.

[email protected] [email protected]