Modification of polyacrylonitrile-derived carbon nanofibers and bacteriophages on screen-printed electrodes: A portable electrochemical biosensor for rapid detection of Escherichia coli.

A facile method was developed for fabricating a disposable phage-based electrochemical biosensor for the detection of Escherichia coli. Bare screen-printed electrodes (SPEs) were modified using a two-step drop-casting method, in which polyacrylonitrile-derived electrospun carbon nanofibers (CNFs) were deposited, followed by E. coli bacteriophage immobilization.

Clinical features and surgical outcomes in young children with focal cortical dysplasia type II.

Aims: To investigate clinical characteristics and surgery outcomes of young children with focal cortical dysplasia (FCD) type II.

Methods: Young children (onset age ≤6 years) with FCDII who underwent epileptic surgery in Children Epilepsy Center of Peking University First Hospital in 2014-2018 were followed up for at least 6 months after surgery.

Results: One hundred and twelve children with FCDII were included, with median age of onset 0.

[Surgery for pediatric intractable epilepsy due to posterior quadrantic cortical dysplasia].

Objective: To investigate the clinical features and surgical strategy for pediatric intractable epilepsy due to posterior quadrantic cortical dysplasia and to assess the surgical outcomes.

Methods: The clinical features and preoperative evaluation results of 14 children with intractable epilepsy due to posterior quadrantic cortical dysplasia were retrospectively analyzed. The localization values of video-electroencephalography and intraoperative monitoring and the indications, advantages and disadvantages of temporoparietooccipital disconnection were evaluated.

The bacterial diversity in an anaerobic ammonium-oxidizing (anammox) reactor community.

An anaerobic ammonium-oxidation (anammox) reactor was operated for more than 500 days and the anammox activity of the biomass in the reactor reached 0.58 kg N(total)/kg VSS d. The removal ratios of NO2(-)-N to NH4(+)-N in both reactor and activity tests were nearly 1.