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Kavarthapu VS, Paranjape MV, Manchi P, Kurakula A, Lee JK, Graham SA, Yu JS. Wireless Alerts and Data Monitoring from BNNO-MWCNTs/PDMS Composite Film-Based TENG Integrated Inhaler for Smart Healthcare Application. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2403218. [PMID: 38963069 DOI: 10.1002/smll.202403218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Revised: 06/17/2024] [Indexed: 07/05/2024]
Abstract
In recent years, the implementation of energy-harvesting technology in medical equipment has attracted significant interest owing to its potential for self-powered and smart healthcare systems. Herein, the integration of a triboelectric nanogenerator (TENG) is proposed into an inhaler for energy-harvesting and smart inhalation monitoring. For this initially, barium sodium niobium oxide (Ba2NaNb5O15) microparticles (BNNO MPs) are synthesized via a facile solid-state synthesis process. The BNNO MPs with ferroelectricity and high dielectric constant are incorporated into polydimethylsiloxane (PDMS) polymer to make BNNO/PDMS composite films (CFs) for TENG fabrication. The fabricated TENG is operated in a contact-separation mode, and its electrical output performance is compared to establish the optimal BNNO MPs concentration. Furthermore, multi-wall carbon nanotubes (MWCNTs), a conductive filler material, are used to enhance the electrical conductivity of the CFs, thereby improving the electrical output performance of the TENG. The robustness/durability of the proposed BNNO-MWCNTs/PDMS CF-based TENG are investigated. The proposed TENG device is demonstrated to harvest electrical energy from mechanical motions via regular human activities and power portable electronics. The TENG is integrated into the inhaler casing to count the number of sprays remaining in the canister, send the notification to a smartphone via Bluetooth, and harvest energy.
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Affiliation(s)
- Venkata Siva Kavarthapu
- Department of Electronic Engineering, Institute for Wearable Convergence Electronics, Kyung Hee University, 1732 Deogyeong-daero, Yongin-si, Gyeonggi-do, 17104, South Korea
| | - Mandar Vasant Paranjape
- Department of Electronic Engineering, Institute for Wearable Convergence Electronics, Kyung Hee University, 1732 Deogyeong-daero, Yongin-si, Gyeonggi-do, 17104, South Korea
| | - Punnarao Manchi
- Department of Electronic Engineering, Institute for Wearable Convergence Electronics, Kyung Hee University, 1732 Deogyeong-daero, Yongin-si, Gyeonggi-do, 17104, South Korea
| | - Anand Kurakula
- Department of Electronic Engineering, Institute for Wearable Convergence Electronics, Kyung Hee University, 1732 Deogyeong-daero, Yongin-si, Gyeonggi-do, 17104, South Korea
| | - Jun Kyu Lee
- Department of Electronic Engineering, Institute for Wearable Convergence Electronics, Kyung Hee University, 1732 Deogyeong-daero, Yongin-si, Gyeonggi-do, 17104, South Korea
| | - Sontyana Adonijah Graham
- Department of Electronic Engineering, Institute for Wearable Convergence Electronics, Kyung Hee University, 1732 Deogyeong-daero, Yongin-si, Gyeonggi-do, 17104, South Korea
| | - Jae Su Yu
- Department of Electronic Engineering, Institute for Wearable Convergence Electronics, Kyung Hee University, 1732 Deogyeong-daero, Yongin-si, Gyeonggi-do, 17104, South Korea
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Usami O. Improved inhaler handling after repeated inhalation guidance for elderly patients with bronchial asthma and chronic obstructive pulmonary disease. Medicine (Baltimore) 2022; 101:e30238. [PMID: 36107520 PMCID: PMC9439803 DOI: 10.1097/md.0000000000030238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Accurate evaluation of inhaler handling is essential for improved treatment of bronchial asthma (BA) and chronic obstructive pulmonary disease (COPD). Many studies have described the correlation between age, inhalation guidance, and procedure improvement. Elderly patients should receive proper inhalation guidance. This was a retrospective open cohort study conducted at a single hospital with outpatient open pharmacies that provided inhalation guidance to patients of BA and COPD. A total of 525 cases were included in the study. The median age was 71 years with no significant difference between genders (males: 71 ± 16.0 years; females: 72 ± 16.1 years; P = .24). There were 226 males (43.0%) and 299 females (57.0%; P = .03). BA was significantly more prevalent than COPD (P < .001). There was no significant difference in dry powder inhaler (DPI) and pressurized metered-dose inhaler (pMDI) visits in those <60 years of age (P = .23). pMDI was used significantly more often than DPI in those aged 60 to 90 years of age (P < .001). In both <70 and >70 years of age, the most common error with DPI use was improper inhalation speed, which reduced (improved) at the third visit. Gargling errors were most common with DPI use at the second visit and with pMDI at the first visit in both age groups, which subsequently reduced rapidly. Continuous repeated guidance steadily and significantly decreased errors with all devices (P < .001 for DPI, pMDI, and soft mist inhaler). Elderly cases (>70 years of age) should undergo continuous repeated guidance to reduce inhalation errors like inhalation speed and gargling errors.
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Affiliation(s)
- Osamu Usami
- Department of Respiratory Medicine of the Kurihara Central Hospital, Miyagi, Japan
- *Correspondence: Osamu Usami, Department of Respiratory Medicine, Kurihara Central Hospital, Miyano Cyuo 3-11, Tsukidate, Kurihara, Miyagi 987-2205, Japan (e-mail: )
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Contoli M, Barile S, Nudo E, Guastalla D, Braido F. Exploring quality of life and satisfaction with treatment in asthmatic patients receiving dry powder inhalers: a multinational survey. J Asthma 2021; 59:1473-1483. [PMID: 33941015 DOI: 10.1080/02770903.2021.1923739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
INTRODUCTION The quality of life (QoL) and device needs have not been characterized in asthmatic patients treated via dry powder inhalers (DPIs). The aim of this study was to assess the impact of asthma on health-related QoL, device satisfaction, and preference in adult asthmatic patients using DPI devices, and to identify any DPI-associated unmet needs. METHODS An online survey was conducted between November and December 2019 on eligible patients from the Cint consumer panel across Europe. Newly designed, as well as validated questionnaires were used to collect data on QoL and inhaler satisfaction. RESULTS A total of 1063 asthmatic patient took part in the survey; 66% of the patients reported medium or high impact of asthma on the overall QoL. The majority of patients (61%) reported high level of satisfaction with their current device. The patients with medium-to-high impact of asthma on QoL were significantly less likely to be satisfied with their current device (55%) than those who reported low-to-medium impact of asthma on QoL (67%; p-value < 0.001). "Higher number of available doses," "usability," "clear dose counter," and "feedback on correct inhalation" were the attributes mostly requested from a new device. The demand for user-friendly devices that provide feedback on correct drug administration was identified as an unmet need. CONCLUSIONS AND CLINICAL RELEVANCE In asthmatic patients with medium to high impact of asthma on the overall QoL, the satisfaction with the device is highly affected.
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Affiliation(s)
- Marco Contoli
- Respiratory Section, Department of Translational Medicine, University of Ferrara, Ferrara, Italy
| | - Sara Barile
- Global Medical Affairs, Chiesi Farmaceutici S.p.A, Parma, Italy
| | - Elena Nudo
- Global Medical Affairs, Chiesi Farmaceutici S.p.A, Parma, Italy
| | | | - Fulvio Braido
- Department of Internal Medicine (DiMI), Respiratory Unit for Continuity of Care, IRCCS, Ospedale Policlinico San Martino, University of Genova, Genova, Italy
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