A Prospective Observational Study of the Efficacy of Combined Interscalene Block and Superficial Cervical Plexus Block using Peripheral Nerve Stimulator and Landmark-Based Technique, as a Sole Anesthetic for Surgeries on the Clavicle in the COVID-19 Pandemic.

Background: Fractures of the clavicle are usually operated under general anesthesia (GA) as they need dense anesthesia, and the airway is difficult to access intraoperatively. There is no established regional anesthesia (RA) technique for clavicular fractures, also as the innervation is contentious. Some studies have been done using RA techniques, but they are all small case numbers.

CuO/g-CN nanocomposites: an insight into the band structure tuning and catalytic efficiencies.

We demonstrate an easy and scalable room-temperature synthesis of CuO nanoparticle incorporated graphitic carbon nitride composites without the aid of any inert atmosphere. First principles calculations based upon density functional theory, in addition to the experimental validations, have been employed to investigate the electronic and optical properties of the nanocomposites. An insight into the band structure tunability, phase stabilisation and the dependancy of the catalytic properties of the nanocomposites upon the amount of Cu loading, in the form of Cu oxides, have been provided in this work.

Mesoporous alumina films: effect of oligomer formation toward mesostructural ordering.

Alumina films with Im3̅m, Ia3d, and onion-like mesopores have been synthesized using a single sol composition derived from an modified alumina precursor (MAP), partial acetylacetone (acac) chelated aluminum secondary butoxide (ASB/acac = 1:0.5). We observed that MAP undergoes oligomerization with aging time and the differently aged MAP generates different micellar structures in the presence of P123 in alumina sols, and forms differently ordered mesostructured coatings.

Controlled synthesis and characterization of the elusive thiolated Ag55 cluster.

A stable, Ag55 cluster protected with 4-(tert-butyl)benzyl mercaptan (BBSH) was synthesized which exhibits two prominent absorption bands with maxima at 2.25 and 2.81 eV.

TiO2 nanoparticles doped SiO2 films with ordered mesopore channels: a catalytic nanoreactor.

Titanium dioxide (TiO2) incorporated ordered 2D hexagonal mesoporous silica (SiO2) films on a glass substrate were fabricated for use as a catalytic nanoreactor. Films were prepared using a tetraethyl orthosilicate (TEOS) derived SiO2 sol and a commercially available dispersion of TiO2 nanoparticles (NPs) in the presence of pluronic P123 as the structure directing agent. The effect of TiO2 doping (4-10 mol% with respect to the equivalent SiO2) into the ordered mesoporous SiO2 matrix was thoroughly investigated.

A facile synthesis of cubic (Im3m) alumina films on glass with potential catalytic activity.

Thermally stable phase pure mesoporous cubic (Im3m) alumina films were synthesized on glass substrates under ambient conditions. These cubic alumina films incorporated with Au NPs exhibited excellent catalytic property.