EINDHOVEN, Netherlands & WORCESTER, Mass.--(BUSINESS WIRE)--Royal Philips Electronics (NYSE: PHG, AEX: PHI) and RXi Pharmaceuticals Corporation (Nasdaq: RXII), a US-based biopharmaceutical company, today announced that they have entered into a joint research agreement to explore the benefits of combining proprietary technologies from both companies for the targeted delivery of experimental therapeutics based on RNA interference (RNAi).