Peel-and-stick process, or water-assisted transfer printing (WTP), represents an emerging process for transferring fully fabricated thin-film electronic devices with high yield and fidelity from a SiO2/Si wafer to various non-Si based substrates, including papers, plastics and polymers. This study illustrates that the fundamental working principle of the peel-and-stick process is based on the water-assisted subcritical debonding, for which water reduces the critical adhesion energy of metal-SiO2 interface by 70 ~ 80%, leading to clean and high quality transfer of thin-film electronic devices. Water-assisted subcritical debonding is applicable for a range of metal-SiO2 interfaces, enabling the peel-and-stick process as a general and tunable method for fabricating flexible/transparent thin-film electronic devices.

Propranolol, a lipophilic nonselective β-blocker, has recently been reported to be the treatment of choice for select types of infantile hemangiomas (IHs). Atenolol is a hydrophilic, selective β1-blocker and therefore may be not associated with side effects attributable to β2-adrenergic receptor blockade and lipophilicity. However, the efficacy and safety of atenolol in the treatment of IH are poorly understood. The aim of this study was to evaluate the efficacy and safety of atenolol in the treatment of proliferating IHs.A study of 76 infants between the ages of 5 to 20 weeks with superficial or mixed IH was conducted between August 2013 and March 2015. Oral atenolol was administered in a progressive schedule to 1 mg/kg per day in a single dose. Efficacy was assessed using the Hemangioma Activity Score (HAS) at weeks 0, 1, 4, 12, and 24. Safety was evaluated at weeks 0, 1, 4, 8, 12, 16, 20, and 24.In total, 70 patients completed 24 weeks of treatment. IH growth abruptly stopped for 93.4% of patients within the fourth week of treatment with atenolol. In ulcerated IHs, complete healing of the ulcerations occurred in an average treatment time of 5.5 weeks. Atenolol treatment promoted dramatic decreases in HAS scores after week 1. An “excellent” treatment response (compete or nearly complete resolution of the IH) was observed in 56.5% of patients at week 24. No significant hypoglycemia, bronchospasm, bradycardia, or hypotension occurred. The most common adverse event was diarrhea, followed by agitation and sleep disturbance.This study demonstrated that atenolol was effective and safe at a dose of 1 mg/kg per day for 24 weeks in the treatment of proliferating IHs.

To provide insight of their inhibition mechanism and facilitate the design of more potent ligands, a series of 59 isatin sulfonamide analogues were docked to the X-ray structure of caspase-3, one of the important cysteine aspartyl-specific execution proteases in apoptosis, and their binding conformations were analyzed by 3D-QSAR studies. Comparative Molecular Field Analysis (CoMFA) and Comparative Molecular Similarity Index Analysis (CoMSIA) studies suggest that both steric and electrostatic interactions contribute to the compounds’ binding affinity, with the major contribution arising from hydrophobic interactions. The models show excellent correlation and high predictive power even evaluated by the most stringent criteria for a QSAR model. The results of this work demonstrate that structure-based design methods (such as docking) cultivate the development of reliable QSAR models, they also illustrate the utility of this procedure in design of new potent caspase-3 ligands.

No abstract