We present a novel approach for the room-temperature fabrication of conductive traces and their subsequent site-selective dielectric encapsulation for use in flexible electronics. We have developed an aerosol-assisted atmospheric pressure plasma-based deposition process for efficiently depositing materials on flexible substrates. Silver nanowire conductive traces and silicon dioxide dielectric coatings for encapsulation were deposited using this approach as a demonstration. The paper substrate with silver nanowires exhibited a very low change in resistance upon 50 cycles of systematic deformation, exhibiting high mechanical flexibility. The applicability of this process to print conductive traces on nonconformal 3D objects was also demonstrated through deposition on a 3D-printed thermoplastic object, indicating the potential to combine plasma printing with 3D printing technology. The role of plasma here includes activation of the material present in the aerosol for deposition, increasing the deposition rate, and plasma polymerization in the case of inorganic coatings. The demonstration here establishes a low-cost, high-throughput, and facile process for printing electronic components on nonconventional platforms.

Controlled integration of features that enhance the analytical performance of a sensor chip is a challenging task in the development of paper sensors. A critical issue in the fabrication of low-cost biosensor chips is the activation of the device surface in a reliable and controllable manner compatible with large-scale production. Here, we report stable, well-adherent, and repeatable site-selective deposition of bioreactive amine functionalities and biorepellant polyethylene glycol-like (PEG) functionalities on paper sensors by aerosol-assisted, atmospheric-pressure, plasma-enhanced chemical vapor deposition. This approach requires only 20 s of deposition time, compared to previous reports on cellulose functionalization, which takes hours. A detailed analysis of the near-edge X-ray absorption fine structure (NEXAFS) and its sensitivity to the local electronic structure of the carbon and nitrogen functionalities. σ*, π*, and Rydberg transitions in C and N K-edges are presented. Application of the plasma-processed paper sensors in DNA detection is also demonstrated.

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Background: The global Pandemic of COVID-19 has impacted all countries of the world. Spreading of infectious agent accomplished either by specific protection by a potent vaccine or active disease contraction. A safe and effective vaccine would help to protect all age groups. Objectives: To assess the COVID-19 vaccination coverage among adults (18+ years) and to enumerate the factors influencing the COVID-19 Vaccination coverage among them. Methods and Material: All persons above 18 year of age who were eligible for COVID vaccine immunization were included in the survey. Houses locked during survey were excluded. Data were collected by an interview method using a pretested semi structured questionnaire which lasted less than 5 minutes. Results: 22882(61%) were the age group of 18-45yrs, 19457(51.9%) were males, 28457(75.9%) belonged to nuclear family, 85.5% had received at least one dose and 22.2% had received both the dose of COVID 19 vaccination, those who were graduates are 1.17 times chance of getting vaccinated, when compared to postgraduates. Among the occupational groups, compared to semi-professionals, professionals have 3.4 times chance of getting vaccinated. Those participants surveyed having COPD has 70% less chance of getting vaccinated compared to those who don’t having COPD. By using binary logistic regression, compare to nuclear family Joint family had 70% more chance and graduates had 64% of more chance of getting 2 dose of COVID vaccination. Professionals, Home makers, Diabetics, Hypertensive patients had higher odds of getting 2 dose of COVID vaccination. Conclusions: The effort to vaccinate hundreds of millions of people against COVID has been possible. There are very few reasons why the vaccination coverage could have been sluggish but most of them are easily addressable. Keywords: COVID 19, Vaccination, Villages

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