Karl Kiser

New York

I build controlled biological systems, taking experimental biology to production scale through media design, custom sensing, and closed-loop control. Co-inventor on aerial mycelium cultivation IP and first author on three peer-reviewed papers. I design and build custom sensors and closed-loop control, develop cultivation processes, and transfer them to partner facilities in the U.S., Canada, and the Netherlands. During start-up I take direct control of partner lines and bring material to commercial spec. Earlier, first-author quantitative MRI research. Based in New York. Open to R&D and process-engineering roles in controlled biological systems.

I build controlled biological systems.

Turning experimental biology into reliable, manufacturable processes across biomaterials, cultivation, custom sensing, and closed-loop control.

Selected results

  • Co-inventor on aerial mycelium cultivation IP
  • Built cultivation and control systems monitoring 25+ real-time conditions
  • Transferred production technology to facilities in the U.S., Canada, and the Netherlands
  • Facilitated conversion of a Pennsylvania mushroom facility to full mycelium production
  • First author on three peer-reviewed quantitative MRI papers

Open to R&D and process-engineering roles in controlled biological systems.

Projects

Selected Work · Project dates

Aerial Mycelium Process Development

Ecovative Design

2023–2026

Aerial mycelium grows readily in a lab and unpredictably at production scale.

I developed the cultivation process end to end: the growth media across both phases, the pre-colonization and aerial growth stages, and the environmental controls that drive morphology and yield. I built the instrumentation underneath it as well, with custom sensors and microcontrollers feeding real-time data acquisition and closed-loop feedback holding the setpoints. I also contributed to a platform tracking more than 25 real-time conditions, where models read that data and recommended setpoints for an operator to accept or override; the control loops then held whatever setpoint was chosen. The process became repeatable enough to run at manufacturing scale. The work led to co-inventorship on a patent.

Mycelium Cultivation Process Development Closed-loop Control Instrumentation Real-time Sensing Data Acquisition Patent

Partner Technology Transfer & Field Process Engineering

Ecovative Design

2023–2026

A process only its authors can run is not yet a process. Moving one onto someone else's floor, staff and equipment is where most of them break.

I transferred the aerial mycelium process to partner facilities in Ontario, in Kennett Square, Pennsylvania, and in Ammerzoden in the Netherlands, and stood up production at each. That covered the recipes, the environmental control programs and the sensing and control systems, plus operations training and hands-on troubleshooting, and often taking direct control of partner lines through start-up. I trained operators in their own language and wrote the documentation the sites kept using after each engagement. I facilitated one Pennsylvania site's conversion from Agaricus mushroom production to full mycelium production inside a year, on site through the switch, and ran the root-cause analysis on a novel contamination event, tracing it to operator practice, inputs and environmental conditions. Data pipelines fed results from partner lines back into our own models, so what happened on their floor informed the next experiment on ours.

Technology Transfer Field Process Engineering Operations Training Data Pipelines International Partners Scale-up

Quantitative MRI for Tumor Treatment Response

Weill Cornell Medical College / NYU

2020–2023

Telling whether a tumor is responding to treatment usually means taking a biopsy.

I built and validated MRI methods to measure cellular water exchange, and with it treatment response, in glioma models without one. As first author in Scientific Reports, I showed that a two-flip-angle DCE-MRI approach can quantify intracellular water lifetime (τᵢ), and that the measure correlates negatively with FDG-PET uptake.

DCE-MRI Pharmacokinetic Modeling Cancer Biology Quantitative Imaging Scientific Reports

Image Texture Analysis & Reproducibility in Preclinical MRI

Weill Cornell Medical College

2021–2023

Radiomics features are only as trustworthy as the images under them, and reproducibility is a known problem in the field.

I quantified how image resolution affects the reliability of texture features derived from pharmacokinetic parameter maps. As first author in Tomography, I demonstrated that 3D isotropic resolution is critical for reproducible radiomics analysis at 7T, which informs how preclinical imaging protocols are standardized and makes quantitative biomarkers more robust across studies.

Radiomics Image Analysis Reproducibility 7T MRI Preclinical Imaging Tomography

Active Contrast Encoding (ACE) MRI Development

NYU / Weill Cornell

2020–2022

Characterizing a tumor microenvironment means separating contrast-agent kinetics from tissue relaxation, which conventional DCE-MRI does inefficiently.

I helped develop and validate ACE-MRI, which estimates both at once. I presented this work at multiple ISMRM annual meetings, and it was published in a collaborative journal article.

ACE-MRI Method Development Tumor Microenvironment ISMRM Collaboration

CV

Where the work happened

  1. Senior Scientist, Research Engineer

    Ecovative Design, Green Island, NY

    2022–2026

  2. Research Associate

    Department of Radiology, NYU Langone Health & Weill Cornell Medical College

    2019–2022

  3. B.A. Biophysics

    Pitzer College, Claremont, CA

    2016

Publications

Journal Articles

Conference Abstracts · ISMRM

Tumor intracellular water residence time measured by DCE-MRI negatively correlates with the standard uptake value of 18F-FDG-PET

1st Author

Karl Kiser, Jin Zhang, S. Gene Kim

2021

Significance of 3D Isotropic Resolution for Image Texture Analysis of Pharmacokinetic Model Parametric Maps

1st Author

Karl Kiser, Jin Zhang, S. Gene Kim

2021
6 co-authored abstracts Show fewer

Whole tumor pharmacokinetic model analysis with 3D isotropic high resolution using 3D-UTE-GRASP sequence at 7T

Jin Zhang, Karl Kiser, Chongda Zhang, Ayesha Bharadwaj Das, Sungheon Gene Kim

2020

Fast 3D T1 mapping with isotropic high resolution using ultrashort TE MRI

Jin Zhang, Karl Kiser, Sungheon Gene Kim

2020

Comparison of tumor cellular-interstitial water exchange rates measured by DCE-MRI and diffusion time-dependent diffusion kurtosis imaging

Jin Zhang, Karl Kiser, Ayesha Bharadwaj Das, Chongda Zhang, Sungheon Gene Kim

2020

Repeatability of contrast kinetic parameters of whole tumor with isotropic resolution measured by 3D-UTE-GRASP method

Jin Zhang, Ayesha Bharadwaj Das, James Tranos, Karl Kiser, Youssef Zaim Wadghiri, Gene Kim

2021

Simultaneous estimation of longitudinal relaxation time and intracellular water lifetime using Active Contrast Encoding MRI

Jin Zhang, Karl Kiser, Ayesha Bharadwaj Das, Sawwal Qayyum, Gene Kim

2022

Assessment of subtle BBB disruption using Focused Ultrasound: comparison between the contrast agent exchange rate and the water exchange rate

Jonghyun Bae, Jin Zhang, Mihaela Stavarache, Ayesha Das, Sawwal Qayyum, Karl Kiser, Sungheon Gene Kim

2022

Patents

Growth Media Compositions and Growth Environmental Conditions for Improved Aerial Mycelium

Publication
US 2024/0352400 A1
Application
18/642,656
International
WO 2024/226467 A1 (PCT)
Priority
63/498,003 · 63/505,675 · 63/516,425
Filed
April 22, 2024
Published
October 24, 2024
Inventors
Jacob Michael Winiski, Karl John Kiser
Assignee
Ecovative LLC (formerly Ecovative Design LLC), Green Island, NY

Claims center on preparing mycelium growth media with defined nutrition profiles and cultivating aerial mycelium under controlled temperature, CO₂, airflow, mist rate, mist composition, and related parameters. The application covers both pre-colonization and aerial growth phase optimization. This patent addresses the same problem as the process work above: producing aerial mycelium to a consistent specification outside a research setting.

View on Google Patents

Additional patents may be pending or in preparation.