Harris & Harris Group Notes Nanosys and 3M Collaboration

NEW YORK, June 6, 2012 (GLOBE NEWSWIRE) -- Harris & Harris Group, Inc. (Nasdaq:TINY), an early-stage, active investor in transformative nanotechnology companies, notes that Nanosys, Inc. and the Optical Systems Division of 3M Company announced a collaboration to commercialize Nanosys' Quantum Dot Enhancement Film^TM ("QDEF") technology. QDEF utilizes the light emitting properties of quantum dots to create a backlight for LCDs. A quantum dot, which is 10,000 times smaller than the width of a human hair, can emit light at a very precise wavelength. The ability to control the spectral output of a quantum dot allows QDEF to create a high-quality white backlight specifically designed for LCDs. Trillions of these quantum dots are packaged into a thin film that fits inside an LCD backlight unit. QDEF replaces a similar film already found inside LCD backlights, which means that adding QDEF to manufacturing processes should not require new equipment or process changes for the LCD manufacturer. Nanosys' press release on this collaboration can be viewed at http://www.nanosysinc.com/2012/06/05/nanosys-and-3m-to-bring-amazing-color-to-consumer-electronic-displays/.

Harris & Harris Group is an investor in privately held Nanosys, Inc.

Detailed information about Harris & Harris Group and its holdings can be found on its website at www.HHVC.com.

This press release may contain statements of a forward-looking nature relating to future events. These forward-looking statements are subject to the inherent uncertainties in predicting future results and conditions. These statements reflect the Company's current beliefs, and a number of important factors could cause actual results to differ materially from those expressed in this press release. Please see the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2011, as well as subsequent filings, filed with the Securities and Exchange Commission for a more detailed discussion of the risks and uncertainties associated with the Company's business, including, but not limited to, the risks and uncertainties associated with venture capital investing and other significant factors that could affect the Company's actual results. Except as otherwise required by Federal securities laws, the Company undertakes no obligation to update or revise these forward-looking statements to reflect new events or uncertainties.  The references to the websites www.HHVC.com and www.nanosysinc.com have been provided as a convenience, and the information contained on such websites is not incorporated by reference into this press release. Harris & Harris Group is not responsible for the contents of third party websites.

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Released June 6, 2012