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Chemist, analytical chemist, R&D Chemist, bio inorganic chemist

Location:
College Station, TX
Posted:
April 11, 2024

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Resume:

CURRICULAR VITA

ROBERTO A. MARIN

USA CITIZEN

ad4x1y@r.postjobfree.com•

979-***-****

www.linkedin.com/in/gorobertogo • College Station, TX

EDUCATION

●The Ohio University, Athens, OH (GPA 4.0)

Ph.D. in Bio-organic Chemistry, June 2010

Dissertation:

Chromium Carcinogenesis: Characterization of DNA damaging Intermediates by EPR, 31P NMR, HPLC, ESI-MS and Magnetic Susceptibility (Advisor: Rathindra Bose)

●University of Costa Rica, San José, Costa Rica

MS in Organic Chemistry, March 2001

●University of Costa Rica, San José, Costa Rica

BS in Chemistry, December 1998

●Languages: Fluent in Spanish and English

●Proficient in Bayesialab, Microsoft, Origin, Chemdraw, Solid Works

Patents

Bose, Anima; Marin, Roberto; 2008. Method of preparing metal-phosphate composite catalysts. US Patent Application 12/074,507, March 04 2008

PROFESSIONAL EXPERIENCE

Organic Synthetic Chemist

American Biochemicals Inc., June 2023 to present

●Construction of laboratory set ups to execute chemical reactions for the synthesis of chemical compounds as requested by the customers.

●Analysis of crudes of reaction by thin layer chromatography (TLC).

●Separations and purifications by preparative column chromatography.

●Scale up reactions mostly from the milligram to the grams domain, rarely to the Kg scale.

●Elaboration of retrosynthetic analysis.

●Proposal of synthetic routes based on model reactions found in the scientific literature.

●Characterization of chemical compounds with the Advion mass spectrometer using APCI and NMR.

●Characterization of chemical compounds using high resolution ESI (QExactive from Thermo Scientific).

●Preparation of laboratory reports that include the technical and analytical regarding the synthesis of given compounds.

Analytical Chemist

Texas Department of Agriculture Pesticides Laboratory, April 2022 to June 2023

●Perform professional chemical work in the pesticide residue testing laboratory in compliance with established scientific standards

●Conducting extractions and testing of various agricultural commodities, soil and materials for pesticide residues using HPLC-MS and GC-MS

●Prepare technical reports documenting the results of sample analyses

●Complete research and methodology development for difficult or unique pesticide residues

●Complete routine and preventative maintenance on laboratory equipment, including GC-MS and HPLC-MS instrumentation.

Organic Synthetic Chemist

American Biochemicals, October 2021 to April 2022

RD Scientist & Manager of G Force Energy LLC

Reservoir Data Systems LLC, February 2014 to October 2021

●Pressure transient analysis, fracture monitoring, and R&D.

●Assessment of market opportunities for data-driven analytics using Bayesian Networks.

●Developed and built gadgets using microprocessors, pressure, flow, tank level sensors, Yoctopuce devices, and modems connected to the AT&T network for the monitoring and troubleshooting of oil and gas wells.

●Designed and built a self-propelled plunger. The plunger unloads hydrocarbons and water from a well by incorporating sensors that remotely provide data to assess the liquid level and pressure profile of the well. The self-propelled ability was designed to complement the energy of the reservoir to bring liquids to the surface when the gas flows below the critical velocity.

●Using the GIS data from the Rail Road Commission of Texas, built an inventory of oil and gas wells that had the reserves and the daily production that made them candidates to pursuit acquisitions when the downturn of the oil and gas industry of 2014 started.

●Managed the production of acquired wells and reported to the Rail Road Commission in behalf of the newly formed G Force Energy LLC.

●Executed thermodynamic analysis, recommended and implemented work overs and the installation of equipment to improve the production and the margins of the recently acquired oil and gas wells in oil fields in Goliad, George West and Alto, Texas.

Analytical Chemist

Texas A&M TVMDL, College Station, August of 2011 to January of 2014

●Investigated the presence of petrochemicals in field samples like water, waste water, forage and tissue (including stomach contents) using GC-MS and libraries.

●Developed analytical methods (SOPs) for drug and toxicology screening and quantification to reach parts per trillionth limits of detection in biological matrices (e.g., Herbicides, NSAIDs, Bronchial Dilators, Steroids, Antibiotics, Stimulants, and Pesticides).

●Performed high throughput HPLC-MS and GC-MS for drug testing and toxicology in biological (animal and plant tissue, stomach contents, animal waste, blood, urine, saliva) and non-biological matrices in forensic cases (e.g., syringes, clothing, empty containers).

●Managed the main method for the detection of 200 plus analytes in samples of urine and blood in 8 minutes HPLC runs normally with triple quadruple mass spectrometers and ion traps.

●Maintained all lab inventory up to date; purchased supplies; selected vendors and maintained relationships with them; organized spreadsheets and communicated purchases with lab team

●Led all efforts in troubleshooting equipment (e.g., HPLC-MS and GC-MS).

●Interviewed job applicants and recommended hiring for all lab positions, including at the Ph.D. level.

●Trained and supervised scientists and technicians.

●Interacted directly (i.e., written and verbal communication) and maintained a good rapport with major clients.

●Led investigations with my team to improve methods and techniques in the lab.

●Optimized methods to reach lower limits of detection.

Additional Experience

Analytical Chemist Quality Manager, Lab. San Martin SA, San José,

Costa Rica

Research Experience

Graduate Research Assistant (Advisor: Rathindra Bose & Anima Bose)

Koneker Research Center, Ohio University, Athens, OH

August 2008 to September 2011

Characterization of catabolites produced during the reaction of model chromium carcinogens with DNA and nucleotides by HPLC-ESI-MS and 31P NMR

Characterization of DNA damaging Intermediates by EPR, 31P NMR, HPLC, ESI-MS, and Magnetic Susceptibility

Synthesis of Phosphaplatins, next generation platinum antitumor agents: A paradigm shift in designing and defining molecular targets

Synthesis of mix-metal, mix-valence catalyst for the oxygen reduction reaction of hydrogen fuel cells

Graduate Research Assistant (Advisors: Rathindra Bose & Anima Bose)

Department of Chemistry, Northern Illinois University, Dekalb, IL

August 2004 to August 2008 (This work was continued at Ohio University)

Chromium Carcinogenesis: Characterization of DNA damaging Intermediates by EPR, 31P NMR, HPLC, ESI-MS and Magnetic Susceptibility (Advisor: Rathindra Bose)

Synthesis of mix-metal, mix-valence catalyst for the oxygen reduction reaction of hydrogen fuel cells

Graduate Research Assistant (Advisor: Jonathan Gale Entz)

Natural Products Research Center (CIPRONA),

University of Costa Rica, San Jose, Costa Rica

March 1997 to December 2002

Synthesis of new vitamin A analogs as potential anti-cancer agents

TEACHING

Adjunct Professor

Department of Chemistry, Blinn Junior College, Bryan, Texas

Fall of 2011/General Chemistry course for chemistry and non-chemistry majors

Teaching Assistant

Department of Chemistry, Northern Illinois University, Dekalb, IL

August 2004-August 2008

General and Organic Chemistry Laboratories for chemistry and non-chemistry majors

Instructor

Materials Technology Division, National Learning Institute (INA), San José, Costa Rica

March 2002-May 2004

Taught seminars about the pollution of water and air, solid waste management, and environmental management systems according to the Norm ISO 14000

SCIENTIFIC AND SCHOLARLY ACTIVITIES

Reviewer for Professional Journals (2013- present)

PLOS ONE

BIBLIOGRAPHY

Marín, R., Rathindra N., B., Hydrolysis by oxo- and peroxo- complexes in chromium induced DNA damage. Inorg. Chim. Acta, 2022. (submitted).

Marín, R.; Kolesnik, S.; Bose, R. N., SQUID-Magnetic characterization of Hypervalent Chromium Intermediates in the Reduction of Chromium(VI) by Glutathione in Acidic Solutions. Magnetochemistry, 2018, 4(2), 23

R. Marín, Y. Ahuja, R. N. Bose "A Vicious Carcinogen: Profile of a redox cycle involving peroxochromate(IV) and glutathione", 2015, Abstract accepted by the 2015 Joint SERMACS-SRM meeting in Nashville.

R. Marín, et al. “Potentially Deadly Carcinogenic Chromium Redox Cycle Involving Peroxochromium(IV) and Glutathione”, Journal of the American Chemical Society, 2010, 132, 106**-*****

S. Moghaddas, P. Majmudar, R. Marín, H. Dezvareh, Ch. Q, E. Soans, R. N. Bose “Phosphaplatins, next generation platinum antitumor agents: A paradigm shift in designing and defining molecular targets”, Inorg. Chim. Acta, 2012, 393, 173-181.

L. Judah, R. Marín, D. Stroup, Ch. Wesdemiotis, R. N. Bose “DNA Damage by Oxo- and Peroxo-Chromium(V) Complexes: Insight into the Mutation and Carcinogenesis mechanisms” Toxicology Research, 2014, 3, 56-66

R. Marín, “Chromium Carcinogenesis: Characterization of DNA Damaging Intermediates by EPR, 31P NMR, HPLC, ESI-MS and Magnetic Susceptibility”, PhD Thesis, Ohio University, Athens, 2010.

R. Marín, “Synthesis of Analogs of Retinoic Acid with Anti-Cancer Potential", Thesis, University of Costa Rica, San Jose, 2000. (USA Library of Congress No: TXu001107124/2003-08-11)

ENTREPRENEURSHIP

Founder

In Gear Mentoring Platform for Advanced Education, May 2015 to the present

https://www.ingear.org/terms-of-service-agreement/

●The mission is to make graduate education more transparent for the underprivileged throughout the world and specifically in the poorest regions.

●Wrote a book (Ph.D. in the USA) to inspire and advise potential graduate students to pursue an advanced degree.

SOCIETY MEMBERSHIPS

●American Chemical Society (ACS).

●American Association for the Advancement of Science (AAAS).

●Society of Petroleum Engineers (SPE)



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