LQG control in Hilbert space, a novel approach for random abstract parabolic systems, and new transdermal alcohol biosensor technology are combined to yield tracking controllers that can be used to automate inpatient management of alcohol withdrawal syndrome and human subject intravenous alcohol infusion studies, and to blindly deconvolve blood or breath alcohol concentration from biosensor measured transdermal alcohol level. The approach taken is based on a full-body alcohol population model in the form of a random, nonlinear, hybrid system of ordinary and partial differential equations and its abstract formulation in a Gelfand triple of Bochner spaces. The efficacy of the approach is demonstrated through simulation studies based on laboratory collected drinking data.
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http://dx.doi.org/10.1016/j.automatica.2022.110699 | DOI Listing |
Sci Rep
December 2024
School of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China.
Microtextured microneedles are tiny needle-like structures with micron-scale microtextures, and the drugs stored in the microtextures can be released after entering the skin to achieve the effect of precise drug delivery. In this study, the skin substitution model of Ogden's hyperelastic model and the microneedle array and microtexture models with different geometrical parameters were selected to simulate and analyse the flow of the microtexture microneedle arrays penetrating the skin by the finite-element method, and the length of the microneedles was determined to be 200 μm, the width 160 μm, and the value of the gaps was determined to be 420 μm. A four-pronged cone was chosen as the shape of microneedles, and a rectangle was chosen as the shape of the drug-carrying microneedle.
View Article and Find Full Text PDFJ Biomater Sci Polym Ed
December 2024
Department of Pharmaceutics, Dr. Prabhakar B Kore Basic Science Research Center, Off-campus, KLE College of Pharmacy (A constituent unit of KAHER-Belagavi), Bengaluru, Karnataka, India.
Zaltoprofen (ZAL) is a non-steroidal anti-inflammatory drug (NSAID) with a short half-life (∼2.8 h) due to extensive first pass metabolism. In this context, 16 different polymeric film forming solutions (PFFS) of ZAL were developed using different grades of Eudragits, Polyvinylpyrrolidones, Kollicoat MAE 100 P and Hydroxypropyl cellulose as film formers, and polyethylene glycol 400 as a plasticizer in equal parts of ethanol and isopropyl alcohol used as solvents.
View Article and Find Full Text PDFJ Oral Maxillofac Surg
December 2024
Associate Professor, Department of Dentistry, All India Institute of Medical Sciences, Bhubaneswar, Odisha, India.
Background: Transdermal buprenorphine is used for the management of postoperative pain. Its effectiveness for the postoperative pain management following mandibular resection and reconstruction has yet to be evaluated.
Purpose: To evaluate the efficacy of transdermal buprenorphine patch (TBP) in managing postoperative pain after mandibular resection and reconstruction with anterior iliac crest graft.
Free Radic Biol Med
December 2024
Department of Pharmacology and Toxicology, Boonshoft School of Medicine Wright State University, Dayton, OH, 45435, USA. Electronic address:
The threats to chemical warfare-associated agents (CWA), including nitrogen mustard, are increasing, and no direct antidote is currently available to mitigate the deleterious cutaneous and systemic responses to prevent mortality. Though most of these agents act as alkylating agents, a significant knowledge gap exists in the molecular mechanisms of how these vesicants cause toxic effects. Studies, including ours, have shown that exposure to reactive oxygen species (ROS)-generating stimuli, including alkylating chemotherapeutic agents, and thermal burn injuries with ethanol produce the potent family of lipid mediators, Platelet-activating factor (PAF) agonists that induce local inflammation, and multi-system organ dysfunction (MOD).
View Article and Find Full Text PDFDrug Alcohol Depend
January 2025
School of Information Sciences, University of Illinois Urbana-Champaign, Champaign, IL 61820, USA; Department of Educational Psychology, University of Illinois Urbana-Champaign, Champaign, IL 61820, USA.
Background: Trace amounts of consumed alcohol are detectable within sweat and insensible perspiration. However, the relationship between ingested and transdermally emitted alcohol is complex, varying across environmental conditions and involving a degree of lag. As such, the feasibility of real-time drinking detection across diverse environments has been unclear.
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