* Caliper Technologies Corp., of Palo Alto, Calif., named to its board of directors Michael Steinmetz, managing director of Venture Asset Management L.L.C., in Cambridge, Mass.

* ClinTrials Research Inc., of Nashville, made the following appointments: Kimberly Halaburka, senior director of clinical monitoring, and Neil Frazer, senior director of medical and regulatory affairs.

* Collaborative BioAlliance Inc., of Stony Brook, N.Y., named Rajeev Chillakuru director of fermentation services.