Sampled-data exponential synchronization of time-delay neural networks subject to random controller gain perturbations.

•A non-fragile sampled-data control method is used to study the exponential synchronization of neural networks with mixed delays.•A sufficient exponential stability condition is developed by using a new two-sided looped Lyapunov functional.•A design scheme of the non-fragile sampled-data controller is proposed by using some decoupling techniques.