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Flexible wood-derived hydrogel patch for smartphone-assisted interval sweat cortisol profiling.

Wearable biochemical sensors offer a promising route to noninvasive cortisol analysis. However, existing sweat-cortisol sensing platforms of … hile adhesive and encapsulation layers improve wet-skin attachment and water retention. A companion smartphone application provides portable cortisol quantification. Under the tested conditions, the complete patch produced a distinguishable response at the lowest experimentally evaluated concentration of 1 pM in human sweat matrices. Pilot human studies supp …

Smartphone-Enabled Cough Detection in Severely Exacerbated COPD: An Exploratory Pilot Study.

INTRODUCTION: Chronic obstructive pulmonary disease (COPD) shows rising incidence worldwide. Progressive decline in lung function is charact … ment- and follow-up strategies. METHODS: We here tested the feasibility and biomarker potential of smartphone-enabled cough monitoring during and after AECOPD in hospitalized patients. The study was designed as a single-center, prospective, longitudinal, observational cohort study and enrolled 23 subjects. A contact-free, near real-time, smartphone-enabled …

A Smartphone-Assisted Approach to Formaldehyde Detection Using Diethanolamine-Grafted Carbon Nanoparticles.

Formaldehyde (FA) is a well-known indoor pollutant and human carcinogen, making the development of field-deployable sensors for its monitori … he CNPs on polyamide membranes, we engineered a solid-state strip test integrated with a 3D-printed smartphone readout platform. This setup delivers an ultralow detection threshold (1 ppb) for gaseous FA and, crucially, maintains robust performance under saturated humidity conditions, overcoming a major limitation of conventional carbon-based sensors. The pr …

Smartphone-based preeclampsia diagnosis through detection of dual biomarkers - nephrin and podocalyxin.

Preeclampsia (PE) causes approximately 15% of maternal deaths globally, with disproportionately high mortality in low- and middle-income countries. Current diagnostic protocols require laboratory infrastructure and trained personnel, excluding women in resource-limited settings. We developed a smartphone-integrated dual-biomarker lateral flow assay (LFA) platform for simultaneous quantification of nephrin (NPHS1) and podocalyxin (PODXL), two podocyturia-associated biomarkers with established clinical cut-off values of >304.6 ng/mL and >59.5 ng/mL, respectively. Six monoclonal antibodies were g…

Smartphone-Based Automated Quantification of Bulbar Conjunctival Hyperemia Using Vessel Density Mapping.

PURPOSE: To develop a smartphone application (Conjunctiva VD) that objectively quantifies bulbar conjunctival hyperemia by estimating the conjunctival vessel density (VD) within a user-defined region of interest (ROI). METHODS: A total of 100 conjunctival images from 2 public datasets were analyzed. An external imaging technician selected images meeting predefined quality criteria and delineated an inferior bulbar conjunctival ROI within the app. After ROI selection, the application automatically resized each ROI to 2100 × 1800 pixels and performed on-device vessel segmentation using a fixed …

Evaluation of corneal infections using a smartphone macro lens for synchronous telemedicine.

PURPOSE: To determine the efficacy of synchronous telemedicine consultation with a corneal specialist using a macro lens attachment to a smartphone to evaluate corneal infections. METHODS: Patients aged 18 years or older who presented to the Cornea Clinic at Wills Eye Hospital between June 2020 and March 2021 with a corneal infection were examined by two fellowship-trained cornea specialists. One examiner (CJR) performed face-to-face (FTF) slit-lamp evaluations, whereas another examiner (ZAS) performed synchronous telemedicine visit (STV) evaluations via a smartphone with a macro lens of 7× m…

Parental psychological control and adolescent smartphone addiction: roles of reactance and resilience.

BACKGROUND: Problematic smartphone use is a prevalent issue addressed in this study. The research delves into factors associated with problematic smartphone use, employing the self-determination theory. Specifically, the study analyzes the relationship between parental psychological control and problematic smartphone use and investigates psychological reactance as a mediating factor. Moreover, psychological resilience is considered a moderating factor in the relationship between parental psychological control and problematic smartphone use, based on the diathesis-stress model and cognitive mod…

Behavioral and psychological correlates of problematic smartphone use in street ketamine users.

BACKGROUND: While problematic smartphone use screening tools are widely used and increasingly evaluated in student populations, their applicability and clinical stability across diverse groups-particularly those with comorbid substance use-remain unclear. Moreover, the overlap between problematic smartphone use and internet gaming disorder has not been well established in clinical contexts. This study explores the behavioral and psychological characteristics associated with problematic smartphone use, focusing on its relationship with online gaming behaviors among ketamine users referred for c…

Smartphone addiction and creativity in Chinese undergraduates: a moderated mediation model analysis.

OBJECTIVES: In the digital era, the relationship between smartphone addiction and creativity among Chinese undergraduates has drawn increasing attention. This study aimed to explore how depression mediates the relationship between smartphone addiction and creativity, and how positive rumination moderates this mediating effect, with the goal of clarifying the underlying psychological mechanisms and providing insights for promoting creativity and mental well - being among this population.​. METHODS: A cross - sectional study was carried out. Undergraduate students from three Chinese provinces w…

Nomophobia, Psychopathology, and Smartphone-Inferred Behaviors in Youth With Depression: Longitudinal Study.

BACKGROUND: Smartphones have become an indispensable part of people's lives, and the fear of being without them, what has been termed "no mobile phone phobia" (nomophobia), is a growing phenomenon. The rise of problematic smartphone use highlights the urgent need to explore the intricate relationship between smartphones and human behavior. However, the connections between nomophobia, mental health indicators, smartphone use patterns, and daily activities remain largely underexplored. OBJECTIVE: This study aimed to explore the relationship between young adults with depression and smartphones a…

Walking Speed Modulates Neck-Shoulder Strain During Smartphone Use with Backpack Load.

Background/Objectives: The concurrent use of smartphones and backpacks presents notable ergonomic challenges for students and young adults. However, the influence of walking speed on this dual-task biomechanical strain remains unclear. This study investigated how walking speed, backpack load, and gender affect postural alignment and neck-shoulder muscle activity during smartphone use. Methods: Thirty healthy university students (15 males and 15 females) were assessed using a motion capture system and surface electromyography to quantify postural alignment and muscle activity. Each participant …

Pancake syndrome diagnosed via mite detection in flour using smartphone macro photography.

We present a case of pancake syndrome (PS) uniquely diagnosed using the macro photography function of a smartphone to detect mite contamination in flour. The patient was a 12-year-old girl with a history of allergic rhinitis who developed severe allergic symptoms, including wheezing and hypoxemia, immediately after consuming homemade Takoyaki-a Japanese dish made with a wheat flour-based batter and cooked in a molded pan-prepared with flour that had been stored at room temperature for several months. Emergency treatment with intramuscular epinephrine and intravenous corticosteroids led to symp…

Smartphone conjunctiva photography for malaria risk stratification in asymptomatic school age children.

Malaria remains a major global health challenge. Although effective control relies on testing all suspected cases, asymptomatic infections in school-age children are frequently overlooked. Advances in retinal imaging and computer vision have enhanced malaria detection. However, noninvasive, point-of-care malaria detection remains unrealized, partly because of the need for specialized equipment. Here we report radiomic analyses of 4302 photographs of the palpebral conjunctiva captured using unmodified smartphone cameras from asymptomatic 405 participants aged 5 to 15 years to predict malaria ri…

Tracking amyotrophic lateral sclerosis disease progression using passively collected smartphone sensor data.

BACKGROUND: Passively collected smartphone sensor data provide an opportunity to study physical activity and mobility unobtrusively over long periods of time and may enable disease monitoring in people with amyotrophic lateral sclerosis (PALS). METHODS: We enrolled 63 PALS who used Beiwe mobile application that collected their smartphone accelerometer and GPS data and administered the self-entry ALS Functional Rating Scale-Revised (ALSFRS-RSE) survey. We identified individual steps from accelerometer data and used the Activity Index to summarize activity at the minute level. Walking, Activity…

Next-Generation Teleophthalmology: AI-enabled Quality Assessment Aiding Remote Smartphone-based Consultation.

Blindness and other eye diseases are a global health concern, particularly in low- and middle-income countries like India. In this regard, during the COVID-19 pandemic, teleophthalmology became a lifeline, and the Grabi attachment for smartphone-based eye imaging gained in use. However, user-captured images do not often possess complete clinical information for decision making, leading to delays. In this backdrop, we propose an AI-based quality assessment system with instant feedback mimicking clinicians' judgments and tested on patient-captured images. Dividing the complex problem hierarchica…

Couple-Focused Smartphone Intervention to Reduce Problem Drinking: Pilot Randomized Control Trial.

BACKGROUND: Alcohol use disorder is among the most pervasive substance use disorders in the United States, with a lifetime prevalence of 30%. Recommended treatment options include evidence-based behavioral interventions; smartphone-based interventions confer a number of benefits such as portability, continuous access, and stigma avoidance; and research suggests that interventions involving couples may outperform those for patients only. In this context, a behavioral intervention delivered to couples through smartphones may serve as an effective adjunct to alcohol use disorder treatment. OBJEC…

Smartphone apps hold promise for neonatal emergency care in low-resource settings.

AIM: Many countries risk failing the Sustainable Development Goal to reduce neonatal mortality to 12 in 1000 live births before 2030, necessitating intervention. This scoping review assesses available evidence from studies implementing smartphone application-based education and clinical decision support in neonatal emergency care in low- and middle-income countries and describes applied assessment tools to highlight gaps in the current literature. METHODS: A systematic search on 28 March 2024 of PubMed, Web of Science, and EMBASE identified original research papers published in peer-reviewed …

Smartphone use, gender, and adolescent mental health: Longitudinal evidence from South Korea.

•We use longitudinal data and FE-IV technique to identify causal effects of smartphone use on adolescent mental health.•We find that longer smartphone use causes increased depressive symptoms and higher suicidal ideation for girls, not for boys.•Social and active smartphone usage such as communicating with friends and family predicts lower depressive symptoms.•Personal history of depressive symptoms and the timing of puberty moderate the effect of SUT on depressive symptoms.•Addictive smartphone behavior is frequent among adolescents, and more prevalent among girls than boys.

Smartphone application-based rehabilitation in patients with chronic respiratory and cardiovascular diseases.

Rehabilitation improves symptoms, quality of life, and survival in patients with chronic respiratory or cardiovascular disease. We evaluated smartphone application-based rehabilitation programs for patients with chronic respiratory or cardiovascular diseases. This was a single-center prospective single arm study. Participants underwent smartphone application-based pulmonary or cardiac rehabilitation for 12 weeks. A total of 93 participants were recruited, and 75 visited after rehabilitation. Their median age was 67.0 (interquartile range, 60.0-70.8) years, and 60 (80.0%) were men. For patients…

Посттуральные тесты на смартфоне и Pronator Drift в качестве показателей неврологической инвалидности.

:: COVID-19 Пандемия и возросший спрос на нейрологов вдохновили на создание дистанционных, цифровых тестов неврологических функций. В рамках этого исследования проводятся исследования two тесты на смартфоне Neurological Factological Tests Suite (NeuFun-TS), Postural Sway и Pronator Drift. Эти тесты охватывают различные области посттурального контроля и двигательной дисфункции у здоровых добровольцев (n=13) и люди с неврологическими расстройствами (n=68 склероз [MS]; n =21 вторичный прогрессивный MS; n =23 первичный прогрессивный MS; n=13 другие подстрекательские неврологические заболевания; n

Совпадение в аннотации оригинала
The COVID-19 pandemic and increased demands for neurologists have inspired the creation of remote, digitalized tests of neurological functions. This study investigates two tests from the Neurological Functional Tests Suite (NeuFun-TS) smartphone application, the "Postural Sway" and "Pronator Drift" tests. These tests capture different domains of postural con…