The artificial intelligence development startup has emerged from stealth with funding from backers including Robert Bosch and Samsung.

Harvard University has spun out NuProbe to commercialise a molecular blood test based on research by Peng Yin and David Zhang at the Wyss Institute.

The optical frequency spinout from Tokyo Institute of Technology has secured series B funding from investors including the institution's Innovations and Future Creation fund.

Podcast platform Castbox took its total funding to almost $30m with a $13.5m round that included returning investor SIG China.

Wuxi AppTec Corporate Ventures has participated in a round that will support development of NuProbe's molecular blood test.

Bertelsmann-backed learning assistance platform Knowbox has received series C funding from returning investor Tal Education Group and Yunfeng Capital.

Goldman Sachs is set to lead a $300m funding round for used vehicle e-commerce platform Renrenche that will include existing backer Didi Chuxing.

Goldman Sachs Private Capital Investing led a round that boosted SoftBank, Telstra and Amex-backed BigCommerce's overall funding to $219m.

Qualcomm Ventures, an investor in the data centre switch producer since its series A round, returned to help boost its total funding to $165m.