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Hire Dr. Estefanía M.

Colombia

USD 12 /hr

Materials Scientist specializing in colloids, surface chemistry, and micro-/nanomaterial analysis

Profile Summary

I am a materials scientist with strong expertise in colloids, surface chemistry, and the characterization of micro- and nanomaterials. My work bridges both research and industrial applications, particularly in understanding material behavior, particle interactions, and interfacial phenomena to support product optimization and process development. I also have hands-on experience in the development and formulation of oral pharmaceutical dosage forms, including the evaluation of excipient functionality, powder behavior, dissolution properties, and stability. This background allows me to integrate principles of colloid science, polymer behavior, and surface interactions into formulation strategies that enhance product performance and manufacturability. My experience includes analyzing microplastics and polymer-based materials using optical and digital microscopy, as well as designing image-processing workflows in FIJI for particle quantification, segmentation, and size distribution analysis. I have also worked with composite and nanocomposite materials, sedimentation and diffusion studies, and the assessment of physicochemical properties relevant to both material stability and industrial processing. My past and ongoing projects involve colloidal system analysis, surface energy–related phenomena, material characterization, and formulation development to support R&D decision-making. I bring a strong foundation in scientific methodology, data interpretation, and technical reporting, enabling me to translate experimental findings into practical, industry-oriented solutions. I aim to provide high-quality, research-driven support for materials development, formulation challenges, quality control, and advanced characterization needs.

Subject Matter Expertise

• ☆ Dispersion Chemistry
• ☆ Surface Science
• ☆ Biopolymers
• ☆ Polymer Chemistry
• ☆ Cell Biology
• ☆ Cell-Based Assays
• ☆ Cytochemistry
• ☆ Biotechnology & Bioengineering
• ☆ Nanobiotechnology
• ☆ Microscopy
• ☆ Light Microscopy
• ☆ Electron Microscopy
• ☆ Fluorescence Microscopy
• ☆ Scanning Probe Microscopy
• ☆ Particle Physics
• ☆ Cell Culture
• ☆ 3D Cell Culture
• ☆ Tissue Engineering
• ☆ Artificial Organs

Services

• Writing
• Research
• Consulting
• Data & AI
• Product Development

Writing Technical Writing, Newswriting

Research Gap Analysis, Scientific and Technical Research, Systematic Literature Review

Consulting Scientific and Technical Consulting

Data & AI Statistical Analysis, Image Processing, Image Analysis

Product Development Formulation, Deformulation, Stability/Shelf Life Testing, Product Evaluation, Packaging Design, Reverse Engineering

Work Experience

Universidad Pontificia Bolivariana

- Present

Adjunct Lecturer in Composite Materials

Universidad Pontificia Bolivariana

January 2024 - November 2025

Adjunct Lecturer in Colloids and Surface Chemistry

Universidad Pontificia Bolivariana

January 2023 - November 2025

Education

Ingeniera en nanotecnología (Ingeniería)

Universidad Pontificia Bolivariana

- Present

Enfermería (Ciencias de la salud)

Universidad de Antioquia

- Present

Maestria en ingenieria (Ingeniería)

Universidad Pontificia Bolivariana

- Present

PhD in Pharmacy

Universidad de Granada

January 2023 - Present

PhD in Engineering

Universidad Pontificia Bolivariana

January 2022 - Present

Master of Science in Engineering

Universidad Pontificia Bolivariana

July 2019 - October 2021

Nanotechnology Engineer

Universidad Pontificia Bolivariana

January 2016 - May 2020

Certifications

• Certification details not provided.

Publications

JOURNAL ARTICLE

Estefanía Martínez, Jennifer Gamboa, Carla V. Finkielstein, Ana Isabel Cañas, Marlon Andrés Osorio, Yesid Vélez, Néstor Llinas, Cristina Isabel Castro (2025). Oral dosage forms for drug delivery to the colon: an existing gap between research and commercial applications . Journal of Materials Science: Materials in Medicine.

M. Osorio, L. Posada, E. Martínez, V. Estrada, G. Quintana, Maria E. Maldonado, S. Peresin, J. Orozco, C. Castro (2024). Bacterial nanocellulose spheres coated with meta acrylic copolymer: Vaccinium meridionale swartz extract delivery for colorectal cancer chemoprevention . Food Hydrocolloids.

Teresita Alzate-Yepes, Lorena Pérez-Palacio, Estefanía Martínez, Marlon Osorio (2023). Mechanisms of Action of Fruit and Vegetable Phytochemicals in Colorectal Cancer Prevention . Molecules.

Juliana Villarreal-Rueda, Zulamita Zapata-Benabithe, Laia Posada, Estefanía Martínez, Sara Herrera, Stiven López, Ana B. J. Sobrido, Cristina I. Castro (2023). Bacterial Nanocellulose from Komagataeibacter Medellinensis in Fique Juice for Activated Carbons Production and Its Application for Supercapacitor Electrodes . Polymers.

E. Martínez, L. Posada, J.C. Botero, J.A. Rios-Arango, Z. Zapata-Benabithe, S. López, C. Molina-Ramírez, M.A. Osorio, C.I. Castro (2023). Nata de fique: A cost-effective alternative for the large-scale production of bacterial nanocellulose . Industrial Crops and Products.

E. Martínez, M. Osorio, C. Finkielstein, I. Ortíz, Maria S. Peresin, C. Castro (2022). 5-Fluorouracil drug delivery system based on bacterial nanocellulose for colorectal cancer treatment: Mathematical and in vitro evaluation . International Journal of Biological Macromolecules.

Melissa Castaño, Estefanía Martínez, Marlon Osorio, Cristina Castro (2022). Development of Genistein Drug Delivery Systems Based on Bacterial Nanocellulose for Potential Colorectal Cancer Chemoprevention: Effect of Nanocellulose Surface Modification on Genistein Adsorption . Molecules.

D. Suárez-Avendaño, E. Martínez-Correa, A. Cañas-Gutierrez, M. Castro-Riascos, R. Zuluaga-Gallego, P. Gañán-Rojo, M. Peresin, M. Pereira, C. Castro-Herazo (2022). Comparative Study on the Efficiency of Mercury Removal From Wastewater Using Bacterial Cellulose Membranes and Their Oxidized Analogue . Frontiers in Bioengineering and Biotechnology.

A. Cañas-Gutiérrez, E. Martinez-Correa, D. Suárez-Avendaño, D. Arboleda-Toro, C. Castro-Herazo (2020). Influence of bacterial nanocellulose surface modification on calcium phosphates precipitation for bone tissue engineering . Cellulose.

A. Cañas-Gutiérrez, E. Martinez-Correa, D. Suárez-Avendaño, D. Arboleda-Toro, C. Castro-Herazo (2020). Influence of bacterial nanocellulose surface modification on calcium phosphates precipitation for bone tissue engineering . Cellulose.

E. Martínez-Correa, M. Osorio-Delgado, L. Henao-Tamayo, C. Castro-Herazo (2020). Systemic Classification of Wound Dressings: a Review .

M. Osorio, E. Martinez, T. V. Kooten, P. Gañán, T. Naranjo, I. Ortiz, C. Castro (2020). Biomimetics of microducts in three-dimensional bacterial nanocellulose biomaterials for soft tissue regenerative medicine . Cellulose.

Marlon Osorio, Estefanía Martinez, Tonny Naranjo, Cristina Castro (2020). Recent Advances in Polymer Nanomaterials for Drug Delivery of Adjuvants in Colorectal Cancer Treatment: A Scientific-Technological Analysis and Review . Molecules.