Consultants' Network
Consultants' Network
NIST Visible Particle Standards and User Experiences | November 24, 2025 | 11:00 EST | Virtual
Participate in the virtual Consultants' Network. This timely program will focus on how NIST standards are advancing consistency and reliability in particle analysis practices. This 1.5-hour virtual program includes speaker presentations by Featured Speakers Atanas Koulov, Clear Solutions Laboratories, and Srivalli N. Telikepalli, National Institute of Standards and Technology (NIST), followed by Q&A and networking opportunities. Registration for this free opportunity will close November 20, 2025.
Consultants are a key component of CASSS membership. The purpose of the CASSS Consultants' Network is to facilitate discussions among consultants.
For more information, contact Anne Ornelas.
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Scientific Program
Join CASSS for a timely, 1.5-hour virtual program on newly available Visible Particle Standards. NIST has developed a standard reference material—SRM 1989—to help biopharmaceutical manufacturers better detect particulate impurities, maintain drug product quality, and reduce costs. SRM 1989 comprises monodispersed, irregularly shaped epoxy-based particles in three vials sized 220 μm, 150 μm, and 100 μm.
You’ll hear directly from a developer of the standards and from an industry laboratory leader on practical implementation, qualification, and acceptance criteria—especially for inherent particles. The session includes live Q&A and dedicated networking time with fellow consultants.
Featured Speakers Bios
Atanas Koulov
Clear Solutions Laboratories
Atanas Koulov is Chief Scientific Officer of Clear Solutions Laboratories, a company specializing in integrated analytical services for particle control in Biopharma. In his 15 years of industry experience (Novartis Biologics, Roche/ Genentech, Lonza, and Clear Solutions Labs), he has built and led several particle characterization facilities and managed various analytical and QC groups. Prior to co-founding Clear Solutions Laboratories, Koulov established, built up, and led the DP Analytical Development & QC Department at Lonza. Throughout his career, Koulov has specialized in particle control and characterization and has published more than 50 peer-reviewed papers on these topics.
Srivalli N. Telikepalli
National Institute of Standards and Technology (NIST
Telikepalli received her B.A. in chemistry at Cornell University in 2008 and her Ph.D. in Pharmaceutical Chemistry from the University of Kansas in 2014. Her thesis work was focused on understanding the formation of protein aggregates/ particles as a function of different stresses and understanding the relationship between protein particle properties and their in-vitro immune responses. Upon completion of graduate school, she started working as a Research Chemist at the National Institute of Standards and Technology in the Biomolecular Measurements Division. Currently, her work focuses on developing protein-like particle standards, primarily subvisible and visible particle standards, as well as lending support to developing monoclonal antibody reference material.
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2025 Speaker Presentations
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Save your spot for the virtual Consultants' Network Discussion on November 24, 2025. Registration closes November 20, 2025.
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