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Drinking Water: Water that is intended to be ingested.

Isolation of Fecal Bacteria from Water Samples by Filtration

JoVE 10213

Source: Laboratories of Dr. Ian Pepper and Dr. Charles Gerba - Arizona University
Demonstrating Author: Luisa Ikner


The quality of water destined for use in agricultural, recreational, and domestic settings is of great importance due to the potential for outbreaks of waterborne disease. Microbial agents implicated in such events…

 Environmental Microbiology

Water Quality Analysis via Indicator Organisms

JoVE 10025

Source: Laboratories of Dr. Ian Pepper and Dr. Charles Gerba - Arizona University
Demonstrating Author: Luisa Ikner


Water quality analysis monitors anthropogenic influences such as pollutants, nutrients, pathogens, and any other constituent that can impact the water’s integrity as a resource. Fecal contamination contributes…

 Environmental Microbiology

Compound Administration II

JoVE 10388

Source: Kay Stewart, RVT, RLATG, CMAR; Valerie A. Schroeder, RVT, RLATG. University of Notre Dame, IN



Compound administration is often an integral component of an animal study. Many factors need to be evaluated to ensure that the compound is delivered correctly. The route of administration affects the mechanisms of…

 Lab Animal Research

Gram Staining of Bacteria from Environmental Sources

JoVE 10092

Source: Laboratories of Dr. Ian Pepper and Dr. Charles Gerba - Arizona University
Demonstrating Author: Luisa Ikner


The spectrum of research in environmental microbiology is broad in scope and application potential. Whether the work is bench-scale with known bacterial isolates, or in the field collecting soil or water samples…

 Environmental Microbiology

Algae Enumeration via Culturable Methodology

JoVE 10154

Source: Laboratories of Dr. Ian Pepper and Dr. Charles Gerba - Arizona University
Demonstrating Author: Bradley Schmitz


Algae are a highly heterogeneous group of microorganisms that have one common trait, namely the possession of photosynthetic pigments. In the environment, algae can cause problems for swimming pool owners by growing …

 Environmental Microbiology

Quantifying Environmental Microorganisms and Viruses Using qPCR

JoVE 10186

Source: Laboratories of Dr. Ian Pepper and Dr. Charles Gerba - Arizona University
Demonstrating Author: Bradley Schmitz


Quantitative polymerase chain reaction (qPCR), also known as real-time PCR, is a widely-used molecular technique for enumerating microorganisms in the environment. Prior to this approach, quantifying microorganisms…

 Environmental Microbiology

Proper Waste Disposal

JoVE 10403

Robert M. Rioux and Taslima A. Zaman, Pennsylvania State University, Pennsylvania, PA



Users are responsible for the proper disposal of the waste generated during their work. Improper waste disposal may severely endanger public health and/or the environment. The handling of hazardous waste must be regulated from the moment of…

 Lab Safety

Lead Analysis of Soil Using Atomic Absorption Spectroscopy

JoVE 10021

Source: Laboratories of Margaret Workman and Kimberly Frye - Depaul University


Lead occurs naturally in soil, in levels ranging from 10-50 ppm. However, with the widespread use of lead in paint and gasoline in addition to contamination by industry, urban soils often have concentrations of lead significantly greater than background levels…

 Environmental Science

Calibration Curves

JoVE 10188

Source: Laboratory of Dr. B. Jill Venton - University of Virginia


Calibration curves are used to understand the instrumental response to an analyte and predict the concentration in an unknown sample. Generally, a set of standard samples are made at various concentrations with a range than includes the unknown of interest and the…

 Analytical Chemistry

VirWaTest, A Point-of-Use Method for the Detection of Viruses in Water Samples

1Laboratory of Viruses Contaminants of Water and Food (VIRCONT), Department of Genetics, Microbiology and Statistics, Section of Microbiology, Virology and Biotechnology, University of Barcelona, 2Grupo de Investigación Biodiversidad, Medio Ambiente y Salud (BIOMAS), Facultad de Ingenierías y Ciencias Agropecuarias (FICA), Ingeniería en Biotecnología, Universidad de las Américas, 3Municipal Laboratory - Waters of Mataró, 4GenIUL

JoVE 59463

 Immunology and Infection

Removal of Trace Elements by Cupric Oxide Nanoparticles from Uranium In Situ Recovery Bleed Water and Its Effect on Cell Viability

1Division of Physical Therapy, Department of Orthopedics & Rehabilitation, University of New Mexico, 2Department of Ecosystem Science and Management, University of Wyoming, 3School of Pharmacy, University of Wyoming, 4Department of Environmental and Radiological Health Sciences, Colorado State University, 5Center for Environmental Medicine, Colorado State University, 6College of Pharmacy, California Northstate University

JoVE 52715

 Environment

A Modified EPA Method 1623 that Uses Tangential Flow Hollow-fiber Ultrafiltration and Heat Dissociation Steps to Detect Waterborne Cryptosporidium and Giardia spp.

1National Exposure Research Laboratory, Office of Research and Development, US Environmental Protection Agency, 2Shaw Environmental & Infrastructure, 3Office of Ground Water and Drinking Water, US Environmental Protection Agency

JoVE 4177

 Immunology and Infection

Glass Wool Filters for Concentrating Waterborne Viruses and Agricultural Zoonotic Pathogens

1Wisconsin Water Science Center, United States Geological Survey, 2University of Wisconsin – Madison, 3Agricultural Research Service, United States Department of Agriculture, 4Alaska Science Center, United States Geological Survey

JoVE 3930

 Immunology and Infection

Utilizing the Modified T-Maze to Assess Functional Memory Outcomes After Cardiac Arrest

1Department of Neurology, Louisiana State University Health Science Center, 2Center for Brain Health, Louisiana State University Health Science Center, 3Department of Cellular Biology and Anatomy, Louisiana State University Health Science Center, 4Department of Neurology, Cerebral Vascular Disease Research Laboratories, University of Miami Miller School of Medicine, 5Department of Biomedical Sciences, West Virginia School of Osteopathic Medicine

JoVE 56694

 Behavior

Analyzing Beneficial Effects of Nutritional Supplements on Intestinal Epithelial Barrier Functions During Experimental Colitis

1Department of Molecular Biomedicine, Center for Research and Advanced Studies of the National Polytechnic Institute, 2Department of Physiology, Biophysics and Neurosciences, Center for Research and Advanced Studies of the National Polytechnic Institute, 3Department of Infectomics and Molecular Pathogenesis, Center for Research and Advanced Studies of the National Polytechnic Institute

JoVE 55095

 Medicine

A Method to Assess Bacteriocin Effects on the Gut Microbiota of Mice

1Departamento de Biotecnología, Instituto de Agroquímica y Tecnología de Alimentos (IATA), Consejo Superior de Investigaciones Científicas (CSIC), 2Department of Food Safety and Infection Biology, Norwegian University of Life Sciences (NMBU), 3Departamento de Nutrición, Bromatología y Tecnología de los Alimentos, Facultad de Veterinaria, Universidad Complutense de Madrid (UCM), 4Faculty of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences (NMBU)

JoVE 56053

 Biology

Live Cell Analysis of Shear Stress on Pseudomonas aeruginosa Using an Automated Higher-Throughput Microfluidic System

1Department of Chemistry, Doane University, 2Department of Biology, Doane University, 3Department of Pathology and Microbiology, University of Nebraska Medical Center, 4Department of Physics and Engineering, Doane University

JoVE 58926

 Bioengineering

Flat-floored Air-lifted Platform: A New Method for Combining Behavior with Microscopy or Electrophysiology on Awake Freely Moving Rodents

1Neuroscience Center, University of Helsinki, 2Neurotar LTD, 3A. I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, 4Laboratory Animal Center, University of Helsinki

JoVE 51869

 Behavior

Multimodal Quantitative Phase Imaging with Digital Holographic Microscopy Accurately Assesses Intestinal Inflammation and Epithelial Wound Healing

1Department of Medicine B, University Hospital Münster, 2Institute of Palliative Care, University Hospital Münster, 3Biomedical Technology Center, University of Münster, 4Department of Gastroenterology, Klinikum Bielefeld

JoVE 54460

 Medicine

Elevated Plus Maze Test Combined with Video Tracking Software to Investigate the Anxiolytic Effect of Exogenous Ketogenic Supplements

1Department of Psychology, Hyperbaric Neuroscience Research Laboratory, University of South Florida, 2Department of Molecular Pharmacology and Physiology, Metabolic Medicine Research Laboratory, Morsani College of Medicine, University of South Florida, 3Institute for Human and Machine Cognition, 4Department of Pharmaceutical Sciences, College of Pharmacy, University of South Florida, 5James A. Haley VA Medical Center, 6Shriners Hospital for Children, 7Savaria Department of Biology, ELTE Eötvös Loránd University

JoVE 58396

 Behavior

A Familial Hypercholesterolemia Human Liver Chimeric Mouse Model Using Induced Pluripotent Stem Cell-derived Hepatocytes

1Department of Medicine, University of Hong Kong-Shenzhen Hospital, 2The Cardiology Division, Department of Medicine, Li Ka Shing Faculty of Medicine, University of Hong Kong, 3School of Biomedical Sciences, Institute of Vascular Medicine, Li Ka Shing Institute of Health Sciences, Chinese University of Hong Kong, 4Key Laboratory of Regenerative Biology of the Chinese Academy of Sciences, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health and Guangzhou Medical University, 5Laboratory of RNA, Chromatin, and Human Disease, CAS Key Laboratory of Regenerative Biology and Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, 6Research Centre of Heart, Brain, Hormone, and Healthy Ageing, Li Ka Shing Faculty of Medicine, University of Hong Kong, 7Hong Kong-Guangdong Stem Cell and Regenerative Medicine Research Centre, University of Hong Kong and Guangzhou Institutes of Biomedicine and Health

JoVE 57556

 Developmental Biology
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