Transmission Electron Microscope

The National Institute of Diabetes and Digestive and Kidney Diseases, part of the National Institutes of Health under the Department of Health and Human Services, is soliciting quotes for a 120 kV Transmission Electron Microscope for negative-stain grids screening, with quotes due July 17, 2026 and questions due July 9, 2026 at 5:00 p.m. EST. This is a commercial item purchase on a firm fixed-price basis with no set-aside.

Place of performance is Bethesda, Maryland 20892. Delivery is required within 6 months of order receipt. The NAICS code is 334516, Analytical Laboratory Instrument Manufacturing; PSC is J066, Maint/Repair/Rebuild Of Equipment—Instruments And Laboratory Equipment.

The microscope must operate at 20–120 kV with automatic alignment recall at 80, 100, and 120 kV, feature a Windows 11-based GUI with user expertise level controls, and include either a W or LaB6 filament with standardized heat-up and cool-down protocols. Required components include a completely dry-pumped vacuum system, 4-position motorized aperture control, motorized beam stop, and 2k x 2k scientific CMOS-type camera fully integrated with control software. The system must be parfocal with exchangeable high-contrast and high-resolution polepieces, an anti-contaminator cryo-shield in the objective lens pole piece with ice contamination rates below 0.5 nm/hr, and goniometer support for tilts up to 80 degrees. The digital camera must be a high-performance scintillator with 4096 x 4096 CMOS sensor (9 mm pixels, 36.9 x 36.9 mm active area) capable of acquiring images and video at up to 20 fps and 160 fps maximum with binning, 16-bit dynamic range with HDR readouts, and compatibility with Gatan Imaging Filter systems.

The system must support montaging, cryo-FIBSEM/light microscope/electron microscope workflows, tomography, single particle analysis, and microED applications. Warranty is 3 years with unlimited service visits, parts, and applications support. Pricing is structured as 30% upon order receipt, 60% upon delivery, and 10% upon acceptance, all Net 30 days. Quotes must remain valid 90 days after solicitation close. On-site applications training in the Americas is required and included in the quoted price; all shipping, handling, delivery, installation, parts, and labor are included. Offerors must be registered with SAM. Contact Lynda Cole at Lynda.Cole@nih.gov.