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Jason D Ryan, Desalegn Alemu Mengistie, Roger Gabrielsson, Anja Lund, Christian Müller
Durable, electrically conducting yarns are a critical component of electronic textiles (e-textiles). Here, such yarns with exceptional wear and wash resistance are realized through dyeing silk from the silkworm Bombyx mori with the conjugated polymer:polyelectrolyte complex PEDOT:PSS. A high Young's modulus of approximately 2 GPa combined with a robust and scalable dyeing process results in up to 40 m long yarns that maintain their bulk electrical conductivity of approximately 14 S cm(-1) when experiencing repeated bending stress as well as mechanical wear during sewing...
March 15, 2017: ACS Applied Materials & Interfaces
Ali Shafti, Roger Ribas Manero, Amanda Borg, Kaspar Althoefer, Matthew Howard
Muscle activity monitoring or Electromyography (EMG) is a useful tool. However, EMG is typically invasive, expensive and difficult to use for untrained users. A possible solution is textile-based surface EMG (sEMG) integrated into clothing as a wearable device. This is, however, challenging due to (i) uncertainties in the electrical properties of conductive threads used for electrodes, (ii) imprecise fabrication technologies (e.g., embroidery, sewing), and (iii) lack of standardization in design variable selection...
December 1, 2016: IEEE Transactions on Neural Systems and Rehabilitation Engineering
Isabel G Trindade, José Machado da Silva, Rui Miguel, Madalena Pereira, José Lucas, Luís Oliveira, Bruno Valentim, Jorge Barreto, Manuel Santos Silva
This article addresses the design, development, and evaluation of T-shirt prototypes that embed novel textile sensors for the capture of cardio and respiratory signals. The sensors are connected through textile interconnects to either an embedded custom-designed data acquisition and transmission unit or to snap fastener terminals for connection to external monitoring devices. The performance of the T-shirt prototype is evaluated in terms of signal-to-noise ratio amplitude and signal interference caused by baseline wander and motion artefacts, through laboratory tests with subjects in standing and walking conditions...
September 24, 2016: Sensors
Caroline Loss, Ricardo Gonçalves, Catarina Lopes, Pedro Pinho, Rita Salvado
The Internet of Things (IoT) scenario is strongly related with the advance of the development of wireless sensor networks (WSN) and radio frequency identification (RFID) systems. Additionally, in the WSN context, for a continuous feed, the integration of textile antennas for energy harvesting into smart clothing is a particularly interesting solution when the replacement of batteries is not easy to practice, such as in wearable devices. This paper presents the E-Caption: Smart and Sustainable Coat. It has an embedded dual-band textile antenna for electromagnetic energy harvesting, operating at global system for mobile communication (GSM) 900 and digital cellular system (DCS) 1800 bands...
2016: Sensors
Isabel G Trindade, Frederico Martins, Rúben Dias, Cristina Oliveira, José Machado da Silva
In this article we present a smart textile system for the continuous monitoring of cardiorespiratory signals, produced and integrated with an industrial embroidery unit. The design of a T-shirt system, having embedded textile sensors and interconnects and custom designed circuit for data collection and Bluetooth transmission is presented. The performance of skin-contact textile electrodes, having distinctive electrical characteristics and surface morphologies, was characterized by measurements of signal to noise ratio, under dry and moisture conditions...
August 2015: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
Somnath Gangopadhyay, Sabarni Chakrabarty, Krishnendu Sarkar, Samrat Dev, Tamal Das, Sunetra Banerjee
BACKGROUND: Chikan embroidery is a popular handicraft in India that involves hand-intensive stitching while seated in a static posture with the upper back curved and the head bent over the fabric. Women perform most Chikan embroidery. OBJECTIVES: The aim of this study was to analyze the repetitive nature of this work among female Chikan embroiderers by measuring the prevalence of upper extremity discomfort and carpal tunnel syndrome (CTS). METHODS: The Nordic musculoskeletal questionnaire was used to analyze the extent of upper extremity pain symptomology...
July 2015: International Journal of Occupational and Environmental Health
Thara Seesaard, Panida Lorwongtragool, Teerakiat Kerdcharoen
Novel gas sensors embroidered into fabric substrates based on polymers/ SWNT-COOH nanocomposites were proposed in this paper, aiming for their use as a wearable electronic nose (e-nose). The fabric-based chemical gas sensors were fabricated by two main processes: drop coating and embroidery. Four potential polymers (PVC, cumene-PSMA, PSE and PVP)/functionalized-SWCNT sensing materials were deposited onto interdigitated electrodes previously prepared by embroidering conductive thread on a fabric substrate to make an optimal set of sensors...
January 16, 2015: Sensors
Eleonora De Luca, Silvia Bruni, Diego Sali, Vittoria Guglielmi, Paolo Belloni
Silk embroideries and cotton grounds of ancient Caucasian (Kaitag) textiles were analyzed in situ by a portable Fourier transform infrared (FT-IR) spectrometer equipped with a reflection module. Differently colored areas were analyzed for the purpose of identifying the dyes fixed on the fibers. The spectra so obtained were elaborated by calculating the corresponding second derivative, and a library search was then performed using a database including the second derivative spectra of a large range of historical dyes and the corresponding undyed fibers...
2015: Applied Spectroscopy
Serge Mordon, Cédric Cochrane, Jean Baptiste Tylcz, Nacim Betrouni, Laurent Mortier, Vladan Koncar
Photodynamic therapy (PDT) is considered to be a promising method for treating various types of cancer. A homogeneous and reproducible illumination during clinical PDT plays a determinant role in preventing under- or over-treatment. The development of flexible light sources would considerably improve the homogeneity of light delivery. The integration of optical fiber into flexible structures could offer an interesting alternative. This paper aims to describe different methods proposed to develop Side Emitting Optical Fibers (SEOF), and how these SEOF can be integrated in a flexible structure to improve light illumination of the skin during PDT...
March 2015: Photodiagnosis and Photodynamic Therapy
Silvana Salerno
BACKGROUND: A few years after a series of meetings of Italian scientists were convened prior to the unification of Italy, the first women qualified in medicine and other dedicated women participated in founding a movement for the improvement of living and working conditions of women and children in Italy. OBJECTIVES: analysis of Italian women's contributions in the proceedings of the International Council of Women Congresses and their impact on increasing the number of women's occupational health studies presented at the fourth National Congress on Occupational Diseases held in Rome in 1914...
November 2014: La Medicina del Lavoro
Laís de Miranda Crispim Costa, Regina Maria dos Santos, Tânia Cristina Franco Santos, Maria Cristina Soares Figueiredo Trezza, Josete Luzia Leite
Social-historical study conducted to examine the contribution of the American Nurses of Project HOPE to the configuration of the professional identity of the first trained nurses in Alagoas, in the period of 1973-1977. The theoretical framework was the "Civilizing Process" of Norbert Elias. Primary sources were official documents and personal files of 13 respondents by oral history; the secondary sources were authors of the History of Brazil/Alagoas. Data analysis showed that the configuration of the professional identity of the first trained nurses in Alagoas was a civilizing process, with all the nuances that make up the power relations...
July 2014: Revista Brasileira de Enfermagem
M Hoyer, C Meier, A Breier, J Hahner, G Heinrich, N Drechsel, M Meyer, C Rentsch, L-A Garbe, W Ertel, A Lohan, G Schulze-Tanzil
Tissue engineering of an anterior cruciate ligament (ACL) implant with functional enthesis requires site-directed seeding of different cell types on the same scaffold. Therefore, we studied the suitability of self-assembled three-dimensional spheroids generated by lapine ACL ligament fibroblasts for directed scaffold colonization. The spheroids were characterized in vitro during 14 days in static and 7 days in dynamic culture. Size maintenance of self-assembled spheroids, the vitality, the morphology and the expression pattern of the cells were monitored...
March 2015: Histochemistry and Cell Biology
Pierre L Thillaud, Jacques Postel
In July 1974, a 72 old woman had been a patient for forty years in Sainte-Anne Hospital, Ward C. As she had again a violent brawl with her neighbour patient, she revealed being a tremendous artist. She had been confined on account of dementia paralytica in the Mecca of malariotherapy, and passionately devoted herself to embroidery. Her fancy work was rather a matter for Jean Dubuffet's art through its perfect expression and deserved being known.
April 2014: Histoire des Sciences Médicales
M Hoyer, N Drechsel, M Meyer, C Meier, C Hinüber, A Breier, J Hahner, G Heinrich, C Rentsch, L-A Garbe, W Ertel, G Schulze-Tanzil, A Lohan
Embroidery techniques and patterns used for scaffold production allow the adaption of biomechanical scaffold properties. The integration of collagen into embroidered polylactide-co-caprolactone [P(LA-CL)] and polydioxanone (PDS) scaffolds could stimulate neo-tissue formation by anterior cruciate ligament (ACL) cells. Therefore, the aim of this study was to test embroidered P(LA-CL) and PDS scaffolds as hybrid scaffolds in combination with collagen hydrogel, sponge or foam for ligament tissue engineering. ACL cells were cultured on embroidered P(LA-CL) and PDS scaffolds without or with collagen supplementation...
October 2014: Materials Science & Engineering. C, Materials for Biological Applications
Christine F Skibola, Susan L Slager, Sonja I Berndt, Tracy Lightfoot, Joshua N Sampson, Lindsay M Morton, Dennis D Weisenburger
BACKGROUND: Acute lymphoblastic leukemia/lymphoma (ALL) in adults is a rare malignancy with a poor clinical outcome, and few reported etiologic risk factors. METHODS: We performed an exploratory pooled study of 152 ALL cases and 23096 controls from 16 case-control studies to investigate the role of medical history, lifestyle, family history, and occupational risk factors and risk of ALL. Age- race/ethnicity-, sex-, and study-adjusted odds ratios (ORs) and 95% confidence intervals (CIs) were estimated using logistic regression...
August 2014: Journal of the National Cancer Institute. Monographs
Tania Khan, Merthan Unternährer, Julia Buchholz, Barbara Kaser-Hotz, Bärbel Selm, Markus Rothmaier, Heinrich Walt
BACKGROUND: Medical textiles offer a unique contact opportunity that could provide value-added comfort, reliability, and safety for light or laser-based applications. We investigated a luminous textile diffuser for use in photodynamic therapy. METHODS: Textile diffusers are produced by an embroidery process. Plastic optical fibers are bent and sewn into textile to release light by macrobending. A reflective backing is incorporated to improve surface homogeneity, intensity, and safety...
March 2006: Photodiagnosis and Photodynamic Therapy
Mohsen Aliabadi, Rostam Golmohammadi, Hassan Khotanlou, Muharram Mansoorizadeh, Amir Salarpour
BACKGROUND: Noise prediction is considered to be the best method for evaluating cost-preventative noise controls in industrial workrooms. One of the most important issues is the development of accurate models for analysis of the complex relationships among acoustic features affecting noise level in workrooms. In this study, advanced fuzzy approaches were employed to develop relatively accurate models for predicting noise in noisy industrial workrooms. METHODS: The data were collected from 60 industrial embroidery workrooms in the Khorasan Province, East of Iran...
2014: Journal of Research in Health Sciences
Anne M Collins, Michael J Earley
No abstract text is available yet for this article.
March 2014: Journal of Hand Surgery
Mohsen Aliabadi, Rostam Golmohammadi, Muharram Mansoorizadeh
It is highly important to analyze the acoustic properties of workrooms in order to identify best noise control measures from the standpoint of noise exposure limits. Due to the fact that sound pressure is dependent upon environments, it cannot be a suitable parameter for determining the share of workroom acoustic characteristics in producing noise pollution. This paper aims to empirically analyze noise source characteristics and acoustic properties of noisy embroidery workrooms based on special parameters. In this regard, reverberation time as the special room acoustic parameter in 30 workrooms was measured based on ISO 3382-2...
March 2014: Environmental Monitoring and Assessment
Mislav Cavka, Anja Petaros, Lovro Kavur, Jasenka Skrlin, Emilija Mlinaric Missoni, Ivor Jankovic, Boris Brkljacic
Paleoradiology is the study of biological and other materials from archeological settings through the use of various medical imaging techniques. Although it is most often used in the scientific study of ancient human remains, it can also be used to study metals, ceramics, paper, and clothes. The aim of this study was to test two paleoimaging techniques (MSCT and mammography) in the analysis of an important Croatian liturgical vestment: the hood of a bishop's cope from St. Lawrence's Treasury in Trogir depicting St...
2013: Acta Medico-historica Adriatica: AMHA
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