Choonzo Nachoobe ChiyumbaMRSC
Choonzo Nachoobe Chiyumba, a Zambian synthetic chemist and chemical biologist based in Cambridge
SYNTHETIC ORGANIC CHEMISTRY · ARTIFICIAL METALLOENZYMES

Designing molecules and catalysts for more sustainable chemistry.

I am a synthetic organic chemist working across two independent but connected pillars: small-molecule synthesis and artificial metalloenzymes. I build structurally diverse compound libraries and combine synthetic Ir(III) and Zn(II) porphyrins with engineered proteins to explore selective catalysis under milder conditions.

Multi-step synthesis · Compound libraries · Protein engineering · Molecular characterisation
PhD viva passed · awaiting graduation · actively seeking opportunities

THE IMPACT

Towards more sustainable chemical production

Chemical synthesis is essential to medicines and new technologies, yet many transformations still depend on harsh conditions, high energy inputs or processes that generate avoidable waste. I am interested in a different approach: combining the precision of synthetic organic chemistry with the selectivity of engineered biological systems.

Synthetic chemistry gives me control over molecular structure. Artificial metalloenzymes offer a route towards selective reactivity under mild, biologically compatible conditions. Together, these distinct research pillars support my long-term goal of helping develop cleaner and more efficient ways to make valuable molecules.

01Greater selectivity

Directing reactions towards the desired product and reducing unwanted by-products.

02Milder conditions

Exploring catalysis that can operate in biologically compatible environments.

03Smarter synthesis

Designing molecules and catalytic systems with efficiency and function in mind.

3peer-reviewed publications
40+compounds synthesised
Viva passedCambridge PhD in Chemistry · awaiting graduation
£40Kraised through research-community partnerships
END-TO-END SCIENTIFIC CAPABILITY

A toolkit spanning molecules and proteins

01

Synthetic organic chemistry

Multi-step organic and organometallic synthesis, analogue design, scaffold diversification and structure–activity analysis.

02

Biocatalysis & protein engineering

Engineered cytochrome b562 variants, recombinant protein workflows and synthetic cofactor assembly.

03

Bioconjugation

Protein–small molecule conjugation, metalloporphyrin functionalisation and quantitative cofactor-binding studies.

04

Analytical science

NMR, HPLC, HRMS, UV–visible, fluorescence and IR spectroscopy, with assay and protocol development.

TWO DISTINCT RESEARCH PILLARS

Two pillars. One ambition: more sustainable chemical production.

Synthetic organic chemistry provides precise molecular control; artificial metalloenzymes explore selective transformations under mild, biologically compatible conditions. Each is an independent body of expertise, connected by a shared purpose.

01 SYNTHETIC ORGANIC CHEMISTRY
A library of exocyclic-methylene substrates, carbene-transfer reagents and representative cyclopropane products.

Building molecular diversity

Multi-step route design, scaffold diversification, reaction optimisation, purification and full characterisation across 40+ compounds.

  • 15 exocyclic-methylene substrates
  • 10 diazirine scaffolds
  • 15+ porphyrin and BODIPY analogues
Explore synthetic chemistry →
02 ARTIFICIAL METALLOENZYMES
An iridium porphyrin positioned within an engineered four-helix protein scaffold.

Creating non-natural catalytic systems

Synthetic Ir(III) and Zn(II) porphyrins combined with engineered cytochrome b562 variants to pursue selective reactivity under mild, biologically compatible conditions.

  • Metalloporphyrin design and synthesis
  • Protein expression and engineering
  • Spectroscopic binding and catalysis studies
Explore metalloenzymes →
ACTIVELY SEEKING OPPORTUNITIES

Chemistry for health and more sustainable production.

Seeking roles across synthetic chemistry, medicinal chemistry, chemical biology, biocatalysis and drug discovery.

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