Expert Details

Expert in Explosives Instrument Detection, Trace Explosives Chemical Analysis, Optical Spectroscopy, Polymers

Expert ID: 723493 New York, USA

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Expert has spent over 15 years working in the field of analytical chemistry of various labile organic compounds and macromolecules. He worked on the quantitative and qualitative analysis of highly involatile species that required special sample preparation and processing. These species consisted energetic molecules such as nitrosamines that were used in high explosives. His mission is now to focus on the wealth of data that is being either analyzed on premises or in the cloud. Enterprise companies that were developing new product offerings and leveraging this explosion in the data benefited from his contribution.

Expert has sourced and selected special analytical instrumentation that could identify and detect threat substances at the picogram/ liter level in the chemical laboratory as part of a staff of research scientists. He worked on all stages of laboratory equipment certification from the initial installation to the final performance qualification of various instruments ranging from an atmospheric pressure ionization triple quadropole mass spectrometer to a confocal scanning Raman imaging spectromter. He developed new hyphenated analytical techniques and laboratory protocols to analyze molecules such as nitroaromatics in the gas phase and microparticle plastic explosive residues in the condensed phase. Certain of these laboratory techniques such as ion mobility spectrometry were eventually simplified and reduced to compact field analytical instrumentation for deployment by a government agency.

He has also worked on the development of new detection methods, miniaturized analysis modules and chemical sensors for automated real time analysis of a wider array of organic substances. He contributed his instrument design expertise to new detector research by developing standard calibration sources and conducting performance testing to determine figures of merit such as specificity and sensitivity. He determined explosives detection reliability through the generation of receiver operator curves for sensors such as surface acoustic wave resonators and detector modules such as cavity ringdown laser absorption spectrometers. He contributed the engineering design requirements to the final product development of a large volume air sampling concentrator and ion mobility spectrometer that is currently being marketed.

He has modified various optical components such as lasers, monochromators, and CCD cameras to meet subsystem manufacturer specifications . He performed the systems integration to incorporate these components with other detectors that would produce first stage prototypes. One such project involved the design and development of a mid infrared difference frequency laser source for the miniature cavity ringdown cell and concentrator being developed in a joint effort by a major instrumentation company and a university research group. Another project focused on the design of an inlet desorption sampler for a laser photoionization time of flight mass spectrometer.

He has conducted liquid phase spectroscopic studies using colloidal microparticles and polyelectrolytes for probing physical chemical interactions with other target molecules. He worked with molecules such as fluorone dyes for microparticle fluorescence enhancement and nucleic acids for fluorescence resonance energy transfer using both custom laser spectrofluorometers and commercial filter fluorometers. He developed biosensing techniques for oligonucleotide hybridization using aqueous fluorene conjugated polymers that formed the basis for microarray applications. He characterized the sorption process of dilute analytes such as trinitrotoluene down at the microscopic level using techniques such as surface enhanced Raman Spectroscopy.

Expert has applied his analytical expertise towards determining the composition of more complex fluids, gels and dispersions. Recently he has developed protocols for the process analysis of copolymer blends that incorporated polymer derivatives of polyethylene glycol and polydimethylsiloxane using attenuated total reflectance sampling and Fourier Transform Infrared Spectrocscopy. He monitored emulsification processes in-situ using laser scattering spectroscopy. He quantitatively analyzed suspensions, slurries and liquid mixtures of potentially unstable oxidizing compounds such as perchlorates using confocal near IR Raman probing techniques.

He received a request for a quick analytical screening technique to detect natural products such as steroids in a complex binder matrix. He visited the client's laboratory and utilized their existing equipment to come up with an appropriate analytical method. He identified Attentuated Total Reflectance IR Spectroscopy of powdered solids as a quick method to substantiate the presence of the active substance, oxandralone, in generic pharmaceuticals. He wrote a standard operating procedure for the method, and developed a validation protocol to test the technique.

Expert may consult nationally and internationally, and is also local to the following cities: New York, New York - Yonkers, New York - Newark, New Jersey - Jersey City, New Jersey - Paterson, New Jersey - Elizabeth, New Jersey - Bridgeport, Connecticut - New Haven, Connecticut - Hartford, Connecticut - Philadelphia, Pennsylvania

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Education

Year Degree Subject Institution
Year: 1988 Degree: Bachelor of Engineering Subject: Electro-Optics Institution: Stevens Institute of Technology
Year: 1990 Degree: Master of Science Subject: Optics Institution: University of Rochester
Year: 1998 Degree: Master of Science Subject: Polymer Chemistry Institution: Polytechnic University

Work History

Years Employer Title Department Responsibilities
Years: 2017 to 2018 Employer: Independent Consultant to Henkel, NA Title: Data Analyst & Scientist Department: CPG Big Data Solutions Responsibilities: He worked with the on premise enterprise data warehouse on MS SQL Server for developing queries against historical sales data for pipelines on the JVM to BI platforms that included Tableau & PowerBi
He wrangled big datasets for HDFS storage on a Hadoop cluster running Java APIs for job scheduling and data pipelining onto a server with the Business Intelligence Visualization Platform Application
He extracted and transformed datasets for loading onto Hive using Python libraries such as Numpy, Pandas, SciPy, Sci-Kit Learn, & SPARK SQL
He prepared pipelines using jython orchestration combined with a Python execution engine for data transformations on the JVM for dashboard tools and apps
He created data models and schemas for testing with sample retail data sets on a MySQL instance on GCP before any migration
Implemented forecasting (ARIMA, Prophet) and supervised learning models (Linear Models in libraries such as PyStan) for retail stores to predict inventory and sales for supply chain planning
He developed ML models (Gradient Boosted Trees, Random Forests) for pricing optimization using tools such as H2O AI that could be deployed on a Hadoop cluster with the JVM
Years: 2014 to 2017 Employer: Independent Vendor to Caprice Electronics Title: Big Data Services Department: E-Commerce Responsibilities: He worked with the e-commerce client team on setting up the architecture for a new consumer site using AWS Kinesis, DynamoDB, and RedShift to handle the data warehouse and data feeds.
He migrated web extracted data and supplier data to AWS in S3 and extracted views of sales data from the client’s ERP platform with SQL Server on the backend.
He worked on Web Data extraction of e-commerce site listings of client and competitor products (Python & Selenium) through a web scraping application for price monitoring.
He ran the ETL of price and web data and checked for statistical outliers in Python and R prior to regression analysis.
Implemented SPARK SQL jobs on a Databricks Spark cluster for querying big data sets of retail financial intelligence data from the web site.

Years: 2010 to 2014 Employer: Independent Consultant to Decisiontrend Title: Market Research Analyst for Biopharma, Semiconductor, Environmental Sectors Department: Primary Market Research Responsibilities: He conducted market research surveys by interviewing respondents over the telephone that were using Agilent’s analytical instrumentation for petrochemicals, materials, geological, and environmental applications.
He conducted market research analysis, through the telephone, by surveying the needs of scientists using analytical instrumentation for life sciences applications (MALDI TOF mass spectrometry) for genomics and proteomics analysis.
He identified research objectives based on the client's secondary market research reports. 
He communicated with customers with questions about product pain points and preferred software solutions such as LIMS and SAAS options.
He presented the results of technology competitive market analysis to the client's research manager.
Years: 2008 to 2009 Employer: Independent Consultant to Airbus Innovation Title: Laser and Chemical Sensing Expert Department: EADS-NA Security Responsibilities: He provided technical support in finding custom solutions based on emerging photonics technologies for chemical sensors under development in the client’s (EADS-NA) product pipeline

He identified and qualified components such as UV laser devices for use as an ionization source in two photon spectroscopy for chemical analysis
Years: 2006 to 2008 Employer: Chemtec Title: Technical Consultant Department: Technology Development Responsibilities: He provided formulation expertise on the use of UV absorbing metal oxides down to the nanoscale level for topical sunscreen applications. He developed polymer blend compositions incorporating polyethylene glycol and polyvinyl pyrrolidone for medical device applications. He developed more stable beverage flavors utilizing colloidal dispersions.
Years: 2003 to 2005 Employer: Chemsil Title: Analytical Chemist Department: Quality Control Responsibilities: He set up a Quality Control Database Management System to test and track all outgoing products and incoming raw materials for a chemical distrbutor.
He developed and validated analytical methods using FTIR spectroscopy for the quality assurance of raw materials and products.
He monitored polymer blend processing by off line tests for morphology, rheology, and spectroscopy.
Years: 2002 to 2003 Employer: Pearson (Lessonlab Inc) Title: Physical Science Consultant Department: Responsibilities: He served on a focus group for the development of a digital library of video and text of scientific content for educational training software.
Years: 2000 to 2002 Employer: University of California at Santa Barbara Title: Research Associate Department: Responsibilities: He created preliminary engineering drawings for components of a new bioanalytical instrument for a genomic sequencing project.
He conducted bioinformatic research on target DNA sequences using various computational tools.
He modified and analyzed nucleotides using techniques such as MALDI mass spectrometry, PCR, and HPLC.
He conducted nucleic acid hybridization studies for use in novel biochip technologies.
Years: 1999 to 2000 Employer: Columbia University Title: Teaching Associate Department: Chemistry Department Responsibilities: He developed some new course content for first year chemistry laboratories.
Years: 1990 to 1998 Employer: Homeland Security Department Title: Electronics Engineer Department: Transportation Security Laboratory (Aviation Security R&D) Responsibilities: He was part of the joint agency development team for the first prototype of the Sentinel Explosives Detection Personnel Portal.
He managed the research on projects for the next generation of explosive sensor devices that included miniaturized ion mobility detector cells and surface acoustic wave resonators.
He developed methods for trace explosives analysis using optical spectrometry techniques such as Raman spectroscopy.
He worked on the design, construction and testing of new components for system integration from acousto optic tunable filter spectrometers to hollow fiber membrane concentrators.

Government Experience

Years Agency Role Description
Years: 1990 to 1998 Agency: Homeland Security (formerly FAA/DOT) Role: Research Staff Member - Electronics Engineer Description: He was part of the joint agency development team for the first prototype of the Sentinel Explosives Detection Personnel PortalHe oversaw the research on projects for the next generation of explosive sensor devices such as miniature ion mobility spectrometers and surface acoustic wave resonatorsHe developed methods for trace explosives analysis using optical spectrometry techniques such as Raman spectroscopy He worked on the design, construction and testing of new components for system integration such as laser OPO sources, acousto optic tunable filter spectrometers, and hollow fiber membrane concentrators.

Career Accomplishments

Associations / Societies
He is a member of the Optical Society of America and the American Chemical Society
Licenses / Certifications
Professional Cloud Architect, Google Inc, 2020

A Professional Cloud Architect enables organizations to leverage Google Cloud technologies. With a thorough understanding of cloud architecture and Google Cloud Platform, this individual can design, develop, and manage robust, secure, scalable, highly available, and dynamic solutions to drive business objectives.

Awards / Recognition
He was awarded the Excellence in Technology Transfer Award by the Federal Aviation Administration
Publications and Patents Summary
He authored an article on Difference Frequency Laser Absorption Spectroscopy for Chemical Trace Detection.

Additional Experience

Training / Seminars
He developed and delivered a seminar on explosive detection technology to a major university.
Vendor Selection
He drafted user requirements, performance specifications, and contractual work statements for the purpose of equipping a new analytical laboratory with spectroscopic instruments.
He selected sources for enterprise resource planning software for chemical distributors.
Marketing Experience
He worked on the quality testing phase of teacher training software for the physical sciences.
Other Relevant Experience
He worked with genomic search and computational applications for projects in fluorescence based biosensing and DNA analysis.

He developed scripts and rudimentary applications in Perl, Java, SQL, for chemical data analysis and laboratory database information management.

Language Skills

Language Proficiency
Spanish He has the fluency to translate technical information from experience serving as technical support on business trips to countries such as Spain and Mexico

Fields of Expertise

analytical chemistry, explosives detection, trace analysis, plastic explosive, dynamite, analytical chemistry instrument, analytical laboratory, analysis technique, chemical testing laboratory, chemical instrument, qualitative chemical analysis, quantitative chemical analysis, ion mobility spectrometer, chemical analysis, explosives detection instrument, chemical analysis instrumentation design, real-time spectroscopic analysis, analytical standard, explosives trace detection, absorption spectroscopy, laser spectroscopy, optical instrument, optical instrumentation, near-infrared laser, near-infrared spectrophotometer, fluorescence measurement, fluorometer, ultraviolet spectroscopy, laser spectrophotometry, DNA probe technology, optical spectroscopy, elastomer, Fourier transform infrared spectrometer, organic compound quantitative analysis, polysilicone chemistry, infrared absorption spectroscopy, laser light scattering, homeland, homeland security, high-performance liquid chromatography detector, optical imaging system, ammonium nitrate, analytical monitoring, bioanalytical chemistry, gas-phase infrared spectroscopy, gunpowder, ammonium perchlorate, infrared spectrophotometry, amorphous polymer, analytical test, analytical testing, gas chromatography/mass spectrometry, analyte, absorption spectrophotometer, biophysical chemistry, monochromator, imaging spectroscopy, analytical method validation, cosmetic polymer, analytical biochemistry, diode laser spectroscopy, analysis instrument, organic compound qualitative analysis, electrooptic device, explosive chemical compound, polymer science, oligonucleotide, database programming language, attenuated total-reflectance spectroscopy, Structured Query Language, high nitrogen content energetic material, ultraviolet absorption spectroscopy, optical device, explosive residue, explosive material, infrared spectroscopy, microscopy, vibrational spectroscopy, process chemistry, polymer physical chemistry, optics, optical microscope, optical element, molecular spectroscopy, mass spectrometry, laser, laboratory computerized analytical instrumentation, Fourier transform infrared spectroscopy, fluorescence spectroscopy, fluorescence, fiber optics, DNA analysis, computerized analytical instrumentation, chromatography, chemical sensor, biotechnology, Big Data Analytics, data science, machine learning, cloud computing, B2B market research

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