This paper reviews the recent mobile robot application of Visual Simultaneous Localization and Mapping (V-SLAM) in GNSS-denied environments. V-SLAM is a heavily researched topic over the past two decades, and many of its algorithms have been adapted and applied on mobile robotics platforms. In a situation where GNSS signals are weak, the V-SLAM technique allows mobile robots to localize its’ position and resume navigation. This paper highlights the common usage of visual sensors in V-SLAM techniques and its corresponding mobile robot applications.

The high prevalence of musculoskeletal disorders (MSDs) among healthcare workers is partly attributed to the low adoption of patient transfer assistive devices. This study aimed to evaluate the nurses’ perceived workload, technology acceptance, and emotional states during the use of the sliding board (SB) and mechanical intervention in the form of a Motorised Patient Transfer Device (MPTD).

Solution-processed thin-film transistors (TFTs) are widely explored due to their high potential in flexible, cost-effective, large-area electronics, such as wearable electronics, sensor arrays, flexible displays, radio frequency identification antennas/tags, artificial skin, memories, and so on. This article aims to comprehensive study recent advancements in flexible solution-processed TFTs, focusing on their typical configurations, different active materials, biocompatible substrates, superior performance, and challenges, especially in the context of flexible wearable devices. The configurations of the flexible TFTs are classified into single-gate and double-gate topologies, which are discussed along with their related features and corresponding applications. In addition, the side-gate structure is included as an additional single-gate topology. Different types of flexible and biocompatible substrates (e.g., thin polymer films, papers, and textiles), solution-based semiconductors (e.g., organic, metal-oxide, carbon-based, and polysilicon semiconductors), gate dielectric (e.g., high-k binary and ternary oxides, multicomponent dielectrics, and polymer-based dielectrics), and conductors (e.g., metal-based and organic-based conductors) are reviewed in detail, highlighting their typical characteristics and latest publications. The methods used to assess the performance of flexible TFTs in terms of electrical and mechanical properties are illustrated with related examples. This paper provides an overview of the state-of-the-art flexible solution-processed TFTs for wearable electronics, highlighting the main challenges associated with their fabrication process and performance. Furthermore, it suggests a few of new possible research directions for solution-processed flexible TFT-based applications, which can benefit related researchers.

Electrochemical sensor exploiting thin-film transistor (TFT) technology has emerged as attractive candidate in the field of healthcare monitoring. Despite the remarkable advances in oxide TFT recently over large-area, simpler and low-cost fabrication, the fundamental study of TFT design and performance remains elusive for both practical application and upcoming development. In order to study the I- V characteristics of the TFT device for glucose sensing, a 2D model for n-type amorphous InGaZnO (a-IGZO) TFT is simulated using COMSOL Multiphysics. In this paper, the dependence of electrical characteristic of TFT on IGZO thickness and channel length are determined. It can be observed that the threshold voltage shifted negatively with increasing IGZO thickness and the drain current performance improves tremendously after reducing the channel length by half. As the glucose enzymatic reaction is adapted into TFT model, the effect of various glucose concentrations has been investigated on output characteristics, which shows the device able to detect glucose concentration ranging from 0.001 to 10 mmol/L. The high sensitivity of the device especially in terms of low limit detection could covers the glucose concentration between normal and diabetic patients, hence suggested the possibility of monitoring glucose level in the body.

A rapid and facile method in developing a printed electrochemical glucose sensor constructed using flexible interdigitated electrode (IDE) employed with reduced graphene oxide (rGO)-Titanium dioxide (TiO2) is demonstrated. A 2 × 3 silver (Ag)-based IDE array based on a simulated IDE model, was fabricated via a single-step dispense-printing within less than 5 min, while a rGO-TiO2 nanohybrid and glucose oxidase (GOx) enzyme was coated on the IDE surface simply via drop-casting method. Exceptional reproducibility and repeatability of the printed IDE functionalized with rGO-TiO2/GOx in terms of electrical and mechanical performance were observed. The stability of the sensor was investigated over a week period, in which 6%–7% performance degradation was recorded based on resistance measurement in flat state, whereas no further significant loss was noted over the same period in bending state. The IDE sensor was tested using chronoamperometry with varied glucose concentrations up to 30 mM, resulted in a stabilized current after 5 s. The sensitivity plot attained depicted a best linear fit of 0.988 obtained at response time of 60 s, whilst covering lowest detection at 0.05 mM and selective detection from ascorbic acid and uric acid. The application of this sensor could contribute as an alternative method to develop a reliable and economical glucose sensing wearable for independent monitoring.

Diabetes mellitus is a worldwide leading disease that brings about fatal complications due to poor body glucose management which requires regular screening. With progressive evolution of healthcare monitoring system, high demand for wearable biosensors has efficiently bridged the gap between organic semiconductor devices and biological systems due to their flexibility and biocompatibility as enzyme-based transducing mechanism. In this work, significant features of existing glucose monitoring systems and integration components are evaluated to extend the fully integrated sensing platform with exciting potentials of organic thin-film transistor (OTFT) as electrochemical glucose sensor at low manufacturing process

We present the complete genome of a potential plant growth-promoting bacteria Bacillus altitudinis AIMST-CREST03 isolated from a high-yielding paddy plot. The genome is 3,669,202 bp in size with a GC content of 41%. Annotation predicted 3,327 coding sequences, including several genes required for plant growth promotion.

Here, we present the complete genome of a plant growth-promoting strain, Bacillus stratosphericus AIMST-CREST02 isolated from the bulk soil of a high-yielding paddy plot. The genome is 3,840,451 bp in size with a GC content of 41.25%. Annotation predicted the presence of 3,907 coding sequences, including genes involved in auxin biosynthesis regulation and gamma-aminobutyric acid (GABA) metabolism.