(Includes details from American Capital, updates stock prices) 
 
   DOW JONES NEWSWIRES 
 

Corning Inc. (GLW) has acquired a maker of laboratory liquid handling products from American Capital Ltd. (ACAS) for about $400 million in a move to bolster its life-sciences business.

Shares of American Capital, a publicly traded private-equity firm, surged 31% to $3.38 while Corning was down 2 cents at $15.78.

Wednesday's rally pushed American Capital's stock into the green for the year, up 4.6%. The company's stock had been pressured amid concerns about American Capital's debt levels and weakening performance of its holdings.

American Capital said Wednesday afternoon, hours after the deal was announced by Corning, that it would record a $35 million gain on the sale and proceeds of $182 million. It put its compound annual rate of return on California-based Axygen BioScience at 25%.

Senior managing director Darin Winn said American Capital has received some $875 million of proceeds from selling portfolio holdings the past year.

Corning, whose primary business is making fiber-optic cable and glass for liquid-crystal displays, said the will allow its life-sciences revenue to top $500 million by 2011. The figure was $326 million last year.

Axygen founder Hemant Gupta will continue to lead the business.

The acquisition comes as Corning struggles with falling glass sales stemming from customers' inventory cutbacks. In July, Corning said second-quarter income plunged 81% on a year-earlier gain and falling margins, although results beat analysts' expectations. Revenue decreased 18% to $1.4 billion.

-By Kevin Kingsbury, Dow Jones Newswires; 212-416-2354; kevin.kingsbury@dowjones.com