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Aerosol Sampling and Microfluidic Analysis of Reactive Oxygen Species

活性氧的气溶胶采样和微流体分析

基本信息

批准号：
9443634
负责人：
ALEXEI ZYUZIN
金额：
$ 51.94万
依托单位：
ILLIONIX, LLC
依托单位国家：
美国
项目类别：
财政年份：
2016
资助国家：
美国
起止时间：
2016-03-01 至 2020-02-29
项目状态：
已结题

来源：
https://reporter.nih.gov/project-details/9443634
关键词：
Address Aerosols Affect Area Artificial nanoparticles Asthma Awareness Biochemical Reaction Biological Assay Cardiovascular Diseases Cells Cessation of life Charge Chemicals Chemistry Child Chronic Obstructive Airway Disease Collection Commuting Complex Couples Data Data Storage and Retrieval Deposition Detection Diesel Exhaust Dithiothreitol Dyes Electrostatics Engineering Environment Environmental Exposure Environmental Impact Environmental Monitoring Equipment Exposure to Feedback Gold Health Household Image In Situ Incidence Individual Industry Inhalation International Laboratories Laboratory Study Lead Measurement Metals Methods Microfluidic Analytical Techniques Microfluidic Microchips Microfluidics Military Personnel Monitor Occupational Outcome Particle Size Particulate Performance Persons Pharmacologic Substance Phase Positioning Attribute Reactive Oxygen Species Reducing Agents Reference Standards Research Research Personnel Respiratory System Sampling Security Semiconductors Solubility Techniques Technology Testing Time Tissues Toxicology Ultrafine Uncertainty United States base cardiovascular health consumer product cost cost effective design environmental agent experimental study field study flexibility improved instrument light weight miniaturize monitoring device nanomaterials nanoparticle nanosilver novel operation particle phase 1 study population health portability prototype public health relevance rapid growth residence response surveillance network tool ultrafine particle uptake usability

项目摘要

DESCRIPTION (provided by applicant): Cardiovascular diseases and Asthma affects between 14 and 15 million people in the United States including 4.8 million children; during the past 15 years, its incidence worldwide has doubled. Asthma is responsible for 100 million person-days of restricted activity and 5000 deaths per year, amounting to $8.1 billion in direct heath related costs; there is uncertainty about the specific factors that are contributing to its rise. Cardiovascular disease and chronic obstructive pulmonary disease are also suspected to be related to environmental exposures but, as with asthma, there is uncertainty about the importance of specific causative agents. There is an ongoing need to conduct studies that investigate the impact of environmental and occupational particulate contaminants on the health of the population. Unfortunately, the utility of such studies has been hampered by the limited capabilities of exposure monitoring equipment currently available to conduct such studies. Miniaturized exposure monitoring devices capable of in-situ analysis of samples would greatly help us understand the relationships between aerosol exposure and health. This proposal addresses the need for better personal exposure assessment, quantification and characterization of ultrafine particles in the environment. A successful outcome will result in an analysis tool that will collect airborne nanoparticles for subsequent in-situ analysis using a microfluidic assay. The toxic potential of inhaled particles is dependent on particle size and chemical composition. Within the respiratory tract, particle size determines the region of deposition, residence time, solubility and tissue uptake; the particle's chemistry determines the potential for biochemical reaction with tissue and cells. There is a growing awareness that exposure scenarios are extremely complex, consisting of time varying concentrations and chemistries within all size classes. Exposure to complex environmental agents, such as ultrafine particulate matter derived from diesel exhaust, or engineered nanomaterials in the households and occupational setting and the effect on the health outcome need to be examined. We anticipate that this novel cost effective approach allows us to apply this technology to many established and emerging areas of health research, as well as position this technology for rapid growth in several markets from consumer product to environmental monitoring (pharmaceutical and semiconductor industries, HVAC, and regulatory monitoring) and surveillance networks (military and security markets). Thus, we will aggressively market our product both domestically and internationally.