Faculty Directory

Herold, Keith

Herold, Keith

Associate Professor Emeritus
Fischell Department of Bioengineering
3222 A. James Clark Hall


Ph.D., Ohio State University, 1985


Associate Professor Keith Herold joined the University of Maryland's Department of Mechanical Engineering in 1987, where his research focused on energy systems and absorption refrigeration. In 2000, he shifted his focus to bioengineering and began exploring biosensors, microarrays, and related lab-on-a-chip technologies. In 2006 he joined the newly formed Fischell Department of Bioengineering, where his work in these areas continues. His current research projects include collaborations with the FDA on a DNA-based pathogen biosensor, and with electrophysiologists at the University of Maryland School of Medicine on the analysis of patients suffering from ventricular tachycardia.


  • Fellow, American Society of Mechanical Engineers

BioMEMS; microfluidic systems for bioanalytical assays; heat and mass transfer in bioengineering

Rasooly, A., Herold, K.E., 2008, "Food microbial pathogen detection and analysis using DNA microarray technologies", Foodborne Pathogens and Disease, 2nd revision submitted May 08.

Rasooly, A., Sergeev, N., Herold, K.E., 2007, "Biosensor technologies for microbial and environmental analysis", Minerva Biotecnologica, Vo. 19, No. 3, pp. 105-116.

Kyung, I.-S., Herold, K.E., Kang, Y. T., 2007 , "Experimental verification of H2O/LiBr absorber bundle performance with smooth horizontal tubes", Int. J. Refrigeration, Vol. 30, pp. 582-590.

Kyung, I.-S., Herold, K.E., Kang, Y. T., 2007, "Model for absorption of water vapor into aqueous LiBr flowing over a horizontal smooth tube", Int. J. Refrigeration, Vol. 30, pp. 591-600.

Rasooly, A., Herold, K.E., 2006, "Biosensors for the Analysis of Food and Water Borne Pathogens and their Toxins", J. of AOAC International, Vol. 89, No. 3, pp. 873-883.

Yuan, Z., Herold, K.E., 2005, "Specific Heat Measurements on Aqueous Lithium Bromide", International J. Heating, Ventilating, Air-Conditioning and Refrigeration, Vol. 11, No. 3, pp. 361-375.

Yuan, Z., Herold, K.E., 2005, "Thermodynamic Properties of Aqueous Lithium Bromide Using a Multiproperty Free Energy Correlation", International J. Heating, Ventilating, Air-Conditioning and Refrigeration, Vol. 11, No. 3, pp. 377-393.

Herold, K.E., Rasooly, A., 2003, "Oligo Design, A Computer Program for Development of Probes for Oligonucleotide Microarrays", BioTechniques, Vol. 35, No. 6, pp. 1216-1218,1220-1221.

Buran, B., Butler, L., Currano, A., Smith, E., Tung, W., Cleveland, K., Buxton, C., Lam, D., Obler, T., Rais-Bahrami, S., Stryker, M., Herold, K.E., 2003, "Environmental Benefits of Implementing Alternative Energy Technologies in Developing Countries", Applied Energy, Vol. 76, Issues 1-3, pp. 89-100.

Zhou, X., Yuan, Z., Herold, K.E., 2001, "Phase Distribution of the Surfactant 2-Ethyl-Hexanol in Aqueous Lithium Bromide", International J. Heating, Ventilating, Air-Conditioning and Refrigeration, Vol. 8, No. 4, pp. 371-381.

Ghosh, K., Zhou, X., Herold, K.E., 2002, "Circulation of 2-Ethyl-Hexanol in an Absorption Chiller", ASHRAE Transactions, Vol. 108, Pt. 1, pp. 861-866.

Kyung, I.-S., Herold, K.E., "Performance of a Horizontal Smooth Tube Absorber with and without 2-Ethyl-Hexanol", Journal of Heat Transfer, Vol. 124, pp. 177-183, February 2002.

Yuan, Z.,  Herold, K.E.,  "Surface Tension of Aqueous Lithium Bromide with Controlled Vapor Concentration of 2-ethyl-hexanol", ASHRAE Transactions, Vol. 107, Part 1, pp. 463-468, 2001.

Yuan, Z.,  Herold, K.E., "Surface Tension of Pure Water and Aqueous Lithium Bromide with 2-ethyl-hexanol", Applied Thermal Engineering, Vol. 21, No. 8, pp. 881-897, June 2001.

Kulankara, S. Herold, K.E., "Surface Tension of Aqueous Lithium Bromide with Heat/Mass Transfer Additives", Int. J. Refrigeration, Vol. 25, Issue 3,pp. 383-389, 2002.

Kulankara, S., Herold, K.E., "Theory of Heat/Mass Transfer Additives in Absorption Chillers", ASHRAE Transactions, Vol. 107, Pt. 1, pp. 305-315, 2001.

Kulankara, S., Herold, K.E., "Theory of Heat/Mass Transfer Additives in Absorption Chillers", International J. Heating, Ventilating, Air-Conditioning and Refrigeration Research, Vol. 6, No. 4, pp. 369-380, October 2000.http://www.gastechnology.org/Pages/default.aspx

Herold Announces Retirement

Keith Herold announces his retirement after 32 years at the Clark School of Engineering.

BIOE Capstone Class Presents 20 Novel Projects

Student projects include novel pediatric medical devices, a hemofiltration system, and a tracheostomy device.

BIOE Recognizes Undergraduate Award Recipients

Annual honors given for outstanding academics, service.

BIOE Capstone 2017: Projects Focus on Pediatric Care, Physical Therapy, Pulmonary Tumors, and More

BIOE hosted it's largest-ever Capstone Design competition on May 10th, 2017.

BioE Capstone 2016: New Projects Focus on Improved Healthcare for Underserved Communities, Pediatric Patients, and More

Affordable RT-PCR for clinical diagnostics, fear mitigation device for pediatric MRIs tie for first place.

BioE Capstone 2015: New Projects Focus on Sensorineural Hearing Loss, Injury Rehabilitation, and More

Neonatal acoustic protection device takes first place in annual design competition.

UMD to Launch Graduate Certificate in Regulatory Science and Engineering This Fall

Twelve-credit program will focus on medical device engineering and regulation.

BioE Capstone 2013: New Products Focus on Diagnostics, Physical Therapy and More

Students' inventions address needs ranging from home care to ICU.

2012-2013 Round 1 Exchange Awards Winners

UM-CERSI announces the 2012-2013 winners of round 1 Exchange Award 

Herold Co-Edits New Book on Cancer Diagnostics

Biosensors and Molecular Technologies for Cancer Diagnostics released by CRC Press.

University of Maryland Wins 2011 Solar Decathlon

Campus-wide effort key to WaterShed victory in international competition.

Herold Helps Solar House Team Shine

BioE professor serves as the Engineering Faculty Advisor to WaterShed in Solar Decathlon competition.

Inoue Joins BioE as Professor of the Practice

Canon U.S. Life Sciences senior fellow developing system for rapid diagnosis of disease.

Canon U.S. Life Sciences and the University of Maryland Launch New Collaboration

Joint team to develop automated machine designed to expedite the diagnosis of infectious diseases.

BioE Hosts 26th Southern Biomedical Engineering Conference

Attendees share emerging research on human health.

Herold Edits 2 Vol. Book on Biosensors, Biodetection

Titles part of Methods in Molecular Biology series.

Herold Lectures in Taiwan

Professor invited to universities, research institute.

Projects Come Together at Capstone II

Seniors show the results of a year's work.

Students Impress At Capstone I Wrap-Up

Presentations showcase a semester of ideas, research.