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Passong Immanual ChhakchhuakPC
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Passong Immanual Chhakchhuak

@passongimmanualchhak

I build mRNA, protein, and assay workflows for therapeutic development.

India
Message

At PopVax, I build and standardize end-to-end mRNA production workflows, supporting reproducible 15–20 mg-scale production and up to 30 mg per run. I've improved RNA yield, integrity, and consistency to achieve approximately 95% purity in routine analytical runs.

I lead recombinant protein and antibody production, resolve mammalian expression and secretion challenges, and established in-house GPC3 antigen, antibody, and minibinder production alongside an initial phage-display platform. I also develop SOPs, support cell-bank activities, and train junior scientists.

My research at CDFD and IACS focused on bacterial transcription regulation, combining biochemical, genetic, biophysical, transcriptomic, and computational approaches. During my Ph.D., I developed a framework explaining close to 60% of variation in genome-wide transcription-termination data and built genetic screens spanning approximately 30,000 bacterial colonies.

Experience

Work history, roles, and key accomplishments

PL
Current

Scientist

PopVax Pvt. Ltd.

Jan 2026 - Present (8 months)

Built and standardized an end-to-end mRNA production workflow, achieving ~95% purity and supporting up to 30 mg per run. Led recombinant protein and antibody production, established in-house GPC3 antigen and minibinder production, and developed SOPs while training junior scientists.

II

Research Associate-I

Indian Association for the Cultivation of Science (IACS)

Jul 2023 - Mar 2024 (8 months)

Helped establish a molecular microbiology laboratory from the ground up, handling equipment selection, procurement, and vendor coordination. Served as the experimental biology resource, conducting comparative bacterial transcription studies and collaborating on transcriptomic analysis and machine learning.

CC

Ph.D. Research Fellow

Centre for DNA Fingerprinting & Diagnostics (CDFD)

Jun 2016 - Jul 2023 (7 years 1 month)

Developed deep expertise in bacterial transcription regulation, establishing genome-wide understanding of termination control. Developed computational frameworks and biochemical assays, including a screen of ~30,000 bacterial colonies, and engineered strains to investigate mechanisms.

Education

Degrees, certifications, and relevant coursework

Centre for DNA Fingerprinting and Diagnostics logoCD

Centre for DNA Fingerprinting and Diagnostics

Ph.D., Biotechnology

2016 - 2023

Pursued a Ph.D. in Biotechnology, focusing on bacterial transcription regulation and developing genome-wide understanding of transcription termination.

Madurai Kamaraj University logoMU

Madurai Kamaraj University

M.Sc., Biotechnology

2013 - 2015

Completed a Master of Science in Biotechnology, building foundational knowledge in biotechnological methods and research.

SU

St. Anthony's College, North-Eastern Hill University

B.Sc., Biotechnology

2010 - 2013

Earned a Bachelor of Science in Biotechnology, gaining a broad understanding of biological sciences and laboratory techniques.

Tech stack

Software and tools used professionally

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