Scientific Editor · Technical Writer · AI Evaluation

Sachin Karol

Judgment grounded in domain knowledge.

I assess whether scientific writing stands up to scrutiny: whether the reasoning is sound, the claims are supported by evidence, and the terminology is technically accurate. I also write technical documentation for software and APIs. More than thirteen years and 2,400 edited manuscripts have taught me when precision is essential and when plain language serves the reader better.

Annotated before/after edits on open-access (CC-BY) research excerpts, each showing tracked changes and the editorial reasoning behind them, across the sciences.

One edit, in full

Before Decrease in wear resistance or increase in the coefficient of friction can lead to loosening of implant.

After A low wear resistance or high coefficient of friction can lead to loosening of the implant.

The original blames a change. What loosens an implant is the level, not the direction of travel: a material that has low wear resistance or high friction. That is a materials point rather than a language one, and it is the kind of thing an author rarely catches in their own draft. From the zirconia-toughened alumina sample below.

Before / After Medical Physics Machine Learning

Neural Network for Brachytherapy Outcomes

Substantive edit of an open-access preprint applying a neural network to cervical-cancer brachytherapy outcomes.

Before / After Materials Science Machine Learning

Physics-Assisted ML for Concrete Cracking

Substantive edit of an open-access preprint on use of physics-guided machine learning to predict cracking in recycled aggregate concrete.

Before / After Materials Science Biomaterials

Zirconia-Toughened Alumina for Hip Implants

Substantive edit of an open-access tribology preprint on a ceramic biomaterial for total hip implants.

Before / After Nanomaterials Neuroscience

Biofunctionalized Carbon Nanotubes for Neuronal Outgrowth

Substantive edit of an open-access preprint on biofunctionalized carbon nanotube substrates for promoting neuronal outgrowth and neural regeneration.

I am a scientific editor and technical writer based in Toronto. My background is in bioengineering (M.S., University of Illinois Chicago), and I spent 13 years at Cactus Communications, editing more than 2,400 research manuscripts across materials science, engineering, and the physical and life sciences.

That editing background shapes how I approach technical writing: I am attentive to audience calibration, information hierarchy, and the difference between what subject-matter experts assume readers know and what readers actually need. I am also a published peer-reviewed author.

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Location Toronto, Ontario