Investors including Nan Fung and Tekla Capital have increased the ophthalmic treatment developer's series B round to $35.9m, following a Novartis-led tranche a year ago.

Martlet has reinvested in Exonate through a $1.8m funding round that increased the retinal eye drop maker's total funding to more than $11m.

Each Friday the Global Corporate Venturing Deal Net rounds up the week’s smaller deals and tracks the emerging companies accessing corporate funds.

UCL spinout Promethera Biosciences has received $11.3m in series D funding from Itochu and $16.6m in a convertible debt round backed by Sosei.

HTGF, Think.Health Ventures and Business Angels have also supplied funding to Max Planck Institute for Biochemistry mass spectrometry spinout PreOmics.

L’Oréal’s Muriel Atias has been promoted to chief investment officer of its newly created venturing unit, Bold.

Promethera Biosciences has received $11.3m in series D funding from Itochu and $16.6m in a convertible debt round backed by Sosei.

Deutsche Flugsicherung and Terra Drone were among the investors in a $16.6m round for Unifly, the creator of a drone-traffic management platform.

The tissue-modelling technology developer has expanded its Osram-backed series C round to $10.3m with cash from Occident Ventures, Falk Strascheg Holding and BayBG.

Having achieved an initial close of $8m in September, the Helmholtz spinout has now closed its series C round at $10.3m.