RESUMEN
This work reports the development of a highly sensitive pressure detector prepared by inkjet printing of electroactive organic semiconducting materials. The pressure sensing is achieved by incorporating a quantum tunnelling composite material composed of graphite nanoparticles in a rubber matrix into the multilayer nanostructure of a printed organic thin film transistor. This printed device was able to convert shock wave inputs rapidly and reproducibly into an inherently amplified electronic output signal. Variation of the organic ink material, solvents, and printing speeds were shown to modulate the multilayer nanostructure of the organic semiconducting and dielectric layers, enabling tuneable optimisation of the transistor response. The optimised printed device exhibits rapid switching from a non-conductive to a conductive state upon application of low pressures whilst operating at very low source-drain voltages (0-5 V), a feature that is often required in applications sensitive to stray electromagnetic signals but is not provided by conventional inorganic transistors and switches. The printed sensor also operates without the need for any gate voltage bias, further reducing the electronics required for operation. The printable low-voltage sensing and signalling system offers a route to simple low-cost assemblies for secure detection of stimuli in highly energetic systems including combustible or chemically sensitive materials.
RESUMEN
Suboxone is a 4:1 mixture of buprenorphine and naloxone and Subutex is buprenorphine alone. The high affinity µ-receptor binding of buprenorphine (Suboxone and Subutex) renders other opioids ineffective. Inadequate procedural sedation, inadequate analgesia, and significant drug interactions complicate the treatment of patients taking Suboxone or Subutex. Careful planning and an understanding of buprenorphine pharmacology can minimize potential perioperative complications in patients taking Suboxone or Subutex.
