One-pot approach for synthesis of multi-layered nanosheets of N-dopped graphene derived from chitosan for reinforcing cement mortar.

The synthesis of graphene via traditional methods has several drawbacks, such as the release of poisonous gases, Most of these techniques are time-consuming and tedious, besides the absence of control over the structural composition of graphene during synthesis. In this study, a facile approach for the synthesis of graphene densely doped with nitrogen (N-dopped graphene (NG)) from novel precursor chitosan throughout the direct solvothermal treatment of chitosan under mild circumstances at 250 °C and 270 °C. Cetyltrimethylammonium bromide (CTAB) and ammonia are utilized as structural directing agents.

Effect of cervical margin relocation on marginal adaptation and microleakage of indirect ceramic restorations.

Purpose: This study evaluated the effect of cervical margin relocation (CMR) with two different materials and contamination with hemostatic agents on the margin adaptation and microleakage of ceramic restorations.

Materials And Methods: Mesial-occlusal-distal cavities were prepared in 60 human first molars and distributed to 3 groups (n = 20) according to the margin relocation procedure. The groups were: group F; flowable composite applied in two 2 mm increments, group B; bulk-fill flowable composite applied as a bulk increment of 4 mm thickness and group C (control); no CMR was done.

Clinical impact of LncRNA XIST and LncRNA NEAT1 for diagnosis of high-risk group breast cancer patients.

Long noncoding RNAs (lncRNAs) are evolving as contributing biomarkers for many diseases. Among these lncRNAs, X inactive-specific transcript (XIST), and nuclear paraspeckle assembly transcript 1 (NEAT1) were studied as undesirable upregulated nucleic acid markers for unfavorable prognosis of cancer. The authors aimed to investigate their role as diagnostic markers for breast cancer (BC) patients with high-risk factors.