Displaying publications 1 - 20 of 160 in total

  1. Ruznan WS, Laing RM, Lowe BJ, Wilson CA, Jowett TJ
    Int J Low Extrem Wounds, 2021 Sep;20(3):244-250.
    PMID: 32248708 DOI: 10.1177/1534734620912093
    Bandages are common in many health-related treatments, including management of edema of the lower limb where they may remain in place for several days. The behavior of 2 bandage fabrics was investigated after exposure for up to 5 days to a multiaxial extension laboratory setup on a tensile tester in compression mode. The fabrics were extended 20% and remained under that machine setting. Stress-relaxation over time was determined by analyzing the rate of change over 24 hours and over 5 days. Most change, a rapid drop in force, occurred during the first 15 minutes; thereafter, for the next 12-hour period, a slower rate of decrease was observed. Both fabrics continued to relax gradually during the next 12 hours and continued to do so for up to 5 days. Little further change was evident during the last 12 hours or so. This phenomenon suggests that rewrapping may be appropriate (albeit not practical) after 12 hours of compression therapy to optimize the compression given to the lower leg. Relaxation behavior of these 2 fabrics can be explained using the generalized Maxwell-Wiechert model.
    Matched MeSH terms: Bandages*
  2. Shanmuga Sundara Raj S, Surya Prakash Rao H, Sakthikumar L, Fun HK
    Acta Crystallogr C, 2000 Sep;56 (Pt 9):1113-4.
    PMID: 10986500
    In the crystal structure of the title compound, C(3)H(3)NO(2)S(2), the four-membered C(2)S(2) ring is planar, as is the whole molecule. The short intramolecular S.O distance of 2.687 (2) A shows the five-atom system to be conjugated. The molecules pack as a two-dimensional network in the (010) plane through short intermolecular S.O [2.900 (2) and 3.077 (2) A] interactions.
    Matched MeSH terms: Bandages
  3. Usman A, Razak IA, Fun HK, Chantrapromma S, Zhang Y, Xu JH
    Acta Crystallogr C, 2002 Apr;58(Pt 4):O239-41.
    PMID: 11932554
    The crystal of the title compound, C(20)H(17)NO(4), which was used for collecting intensity data was twinned. Each of the two crystallographically independent molecules in the asymmetric unit has a planar indole moiety perpendicular to a planar oxopropyl moiety. The distribution of the bonds at the central C atom joining the oxopropyl, phenyl and indole substituents is also planar. The packing is stabilized by intermolecular C-H* * *O interactions, as well as by dipole-dipole and van der Waals interactions.
    Matched MeSH terms: Bandages
  4. Khan, Z.A., Siddiquee, A.N., Kamaruddin, S.
    This paper presents an effective approach for the optimization of an in-feed centreless cylindrical grindingof EN52 austenitic grade steel (DIN: X45CrSi93) with multiple performance characteristics based on thegrey relational analysis. To study the effect of the entire space of the input variables, nine experimentalruns, based on the Taguchi method of L9 orthogonal arrays, were performed to determine the best factorlevel condition. The response table and response graph for each level of the machining parameters wereobtained from the grey relational grade. In this study, the in-feed centreless cylindrical grinding processparameters, such as dressing feed, grinding feed, dwell time and cycle time, were optimized by takinginto consideration the multiple-performance characteristics like surface roughness and out of cylindricity.By analyzing the grey relational grade, it was observed that dressing feed, grinding feed and cycle timehad significant effect on the responses. The optimal multiple performance characteristics were achievedwith dressing feed at level 1 (5 mm/min), grinding feed at level 2 (6 mm/min), dwell time at level 2(2.5 s), and cycle time at level 2 (11 s). It is clearly shown that the above performance characteristics inthe in-feed Centreless cylindrical grinding process can be improved effectively through this approach.
    Matched MeSH terms: Bandages
  5. Zukerman-Schpector J, Caracelli I, Stefani HA, Shamim A, Tiekink ER
    Acta Crystallogr E Crystallogr Commun, 2015 Jan 1;71(Pt 1):o53-4.
    PMID: 25705505 DOI: 10.1107/S205698901402564X
    In the title compound, C12H15IO7, the 3,4-di-hydro-2H-pyran ring is in a distorted half-boat conformation with the atom bearing the acet-yloxy group adjacent to the C atom bearing the methyl-acetate group lying 0.633 (6) Å above the plane of the remaining ring atoms (r.m.s. deviation = 0.0907 Å). In the crystal, mol-ecules are linked into a supra-molecular chain along the a axis through two C-H⋯O inter-actions to the same acceptor carbonyl O atom; these chains pack with no specific inter-molecular inter-actions between them.
    Matched MeSH terms: Bandages
  6. Naomi R, Bt Hj Idrus R, Fauzi MB
    PMID: 32961877 DOI: 10.3390/ijerph17186803
    Cellulose is a naturally existing element in the plant's cell wall and in several bacteria. The unique characteristics of bacterial cellulose (BC), such as non-toxicity, biodegradability, hydrophilicity, and biocompatibility, together with the modifiable form of nanocellulose, or the integration with nanoparticles, such as nanosilver (AgNP), all for antibacterial effects, contributes to the extensive usage of BC in wound healing applications. Due to this, BC has gained much demand and attention for therapeutical usage over time, especially in the pharmaceutical industry when compared to plant cellulose (PC). This paper reviews the progress of related research based on in vitro, in vivo, and clinical trials, including the overall information concerning BC and PC production and its mechanisms in wound healing. The physicochemical differences between BC and PC have been clearly summarized in a comparison table. Meanwhile, the latest Food and Drug Administration (FDA) approved BC products in the biomedical field are thoroughly discussed with their applications. The paper concludes on the need for further investigations of BC in the future, in an attempt to make BC an essential wound dressing that has the ability to be marketable in the global marketplace.
    Matched MeSH terms: Bandages*
  7. Nair HKR
    J Wound Care, 2018 Sep 01;27(Sup9a):S37-S40.
    PMID: 30207848 DOI: 10.12968/jowc.2018.27.Sup9a.S37
    BACKGROUND: Cases of venous leg ulcers (VLU) are expected to rise due to the rapidly ageing population in Malaysia. Central to the management of these wounds is compression therapy together with an appropriate wound dressing. Pain and discomfort during dressing changes are common in these patients. Polyurethane foam dressings with SMARTPORE technology (micropore dressing; Mundipharma) facilitate vertical absorption of exudate to reduce risks of wound and periwound area maceration. They support easy dressing removal with less pain and trauma to the wound bed. Thus, the micropore dressing was chosen as a viable treatment option in these cases.

    CASES: Case 1, a 74-year-old diabetic female was treated for bilateral VLUs with micropore dressing for several months, which she noted to be painless and convenient. Case 2, a 49-year-old housewife with a solitary VLU was treated with micropore dressing, leading to good treatment results and high satisfaction.

    CONCLUSION: VLUs managed by the micropore dressing resulted in reduced pain and ease of use during dressing changes, as well as noticeable reduction in wound and periwound area maceration. The use of this type of dressing in these cases shows encouraging results and provides a desirable management option. More robust clinical studies are necessary to establish this.

    Matched MeSH terms: Bandages, Hydrocolloid*; Compression Bandages*
  8. Tan YJ, Yeo CI, Halcovitch NR, Jotani MM, Tiekink ERT
    Acta Crystallogr E Crystallogr Commun, 2017 Apr 01;73(Pt 4):493-499.
    PMID: 28435705 DOI: 10.1107/S205698901700353X
    The title compound, (C6H11)3PS (systematic name: tri-cyclo-hexyl-λ(5)-phosphane-thione), is a triclinic (P-1, Z' = 1) polymorph of the previously reported ortho-rhom-bic form (Pnma, Z' = 1/2) [Kerr et al. (1977 ▸). Can. J. Chem. 55, 3081-3085; Reibenspies et al. (1996 ▸). Z. Kristallogr. 211, 400]. While conformational differences exist between the non-symmetric mol-ecule in the triclinic polymorph, cf. the mirror-symmetric mol-ecule in the ortho-rhom-bic form, these differences are not chemically significant. The major feature of the mol-ecular packing in the triclinic polymorph is the formation of linear chains along the a axis sustained by methine-C-H⋯S(thione) inter-actions. The chains pack with no directional inter-actions between them. The analysis of the Hirshfeld surface for both polymorphs indicates a high degree of similarity, being dominated by H⋯H (ca 90%) and S⋯H/H⋯S contacts.
    Matched MeSH terms: Bandages
  9. Zukerman-Schpector J, Dallasta Pedroso S, Sousa Madureira L, Weber Paixão M, Ali A, Tiekink ERT
    Acta Crystallogr E Crystallogr Commun, 2017 Nov 01;73(Pt 11):1716-1720.
    PMID: 29152358 DOI: 10.1107/S2056989017014748
    The mol-ecule in the title compound, C15H12N4O2, has a twisted L-shape with the dihedral angle between the aromatic rings of the N-bound benzene and C-bound benzyl groups being 70.60 (9)°. The nitro group is co-planar with the benzene ring to which it is connected [C-C-N-O torsion angle = 0.4 (3)°]. The three-dimensional packing is stabilized by a combination of methyl-ene-C-H⋯O(nitro), methyl-ene-C-H⋯π(phen-yl), phenyl-C-H⋯π(triazol-yl) and nitro-O⋯π(nitro-benzene) inter-actions, along with weak π(triazol-yl)-π(nitrobenzene) contacts [inter-centroid distance = 3.8386 (10) Å]. The importance of the specified inter-molecular contacts has been verified by an analysis of the calculated Hirshfeld surface.
    Matched MeSH terms: Bandages
  10. Zukerman-Schpector J, Olivato PR, Traesel HJ, Valença J, Rodrigues DN, Tiekink ER
    Acta Crystallogr E Crystallogr Commun, 2015 Jan 1;71(Pt 1):o3-4.
    PMID: 25705490 DOI: 10.1107/S205698901402550X
    In the title β-thio-carbonyl compound, C16H16O2S, the carbonyl and meth-oxy O atoms are approximately coplanar [O-C-C-O torsion angle = -18.2 (5)°] and syn to each other, and the tolyl ring is orientated to lie over them. The dihedral angle between the planes of the two rings is 44.03 (16)°. In the crystal, supra-molecular chains are formed along the c axis mediated by C-H⋯O inter-actions involving methine and methyl H atoms as donors, with the carbonyl O atom accepting both bonds; these pack with no specific inter-molecular inter-actions between them.
    Matched MeSH terms: Bandages
  11. Khamees HA, Chaluvaiah K, El-Khatatneh NA, Swamynayaka A, Chong KH, Dasappa JP, et al.
    Acta Crystallogr E Crystallogr Commun, 2019 Nov 01;75(Pt 11):1620-1626.
    PMID: 31709079 DOI: 10.1107/S2056989019013410
    The title imidazo[1,2-a] pyridine derivative, C13H8Br2N2, was synthesized via a single-step reaction method. The title mol-ecule is planar, showing a dihedral angle of 0.62 (17)° between the phenyl and the imidazo[1,2-a] pyridine rings. An intra-molecular C-H⋯N hydrogen bond with an S(5) ring motif is present. In the crystal, a short H⋯H contact links adjacent mol-ecules into inversion-related dimers. The dimers are linked in turn by weak C-H⋯π and slipped π-π stacking inter-actions, forming layers parallel to (110). The layers are connected into a three-dimensional network by short Br⋯H contacts. Two-dimensional fingerprint plots and three-dimensional Hirshfeld surface analysis of the inter-molecular contacts reveal that the most important contributions for the crystal packing are from H⋯Br/Br⋯H (26.1%), H⋯H (21.7%), H⋯C/C⋯H (21.3%) and C⋯C (6.5%) inter-actions. Energy framework calculations suggest that the contacts formed between mol-ecules are largely dispersive in nature. Analysis of HOMO-LUMO energies from a DFT calculation reveals the pure π character of the aromatic rings with the highest electron density on the phenyl ring, and σ character of the electron density on the Br atoms. The HOMO-LUMO gap was found to be 4.343 eV.
    Matched MeSH terms: Bandages
  12. Ebrahim M, Chia WC, Adil SH, Raza K
    Sensors (Basel), 2019 May 19;19(10).
    PMID: 31109154 DOI: 10.3390/s19102309
    Devices in a visual sensor network (VSN) are mostly powered by batteries, and in such a network, energy consumption and bandwidth utilization are the most critical issues that need to be taken into consideration. The most suitable solution to such issues is to compress the captured visual data before transmission takes place. Compressive sensing (CS) has emerged as an efficient sampling mechanism for VSN. CS reduces the total amount of data to be processed such that it recreates the signal by using only fewer sampling values than that of the Nyquist rate. However, there are few open issues related to the reconstruction quality and practical implementation of CS. The current studies of CS are more concentrated on hypothetical characteristics with simulated results, rather than on the understanding the potential issues in the practical implementation of CS and its computational validation. In this paper, a low power, low cost, visual sensor platform is developed using an Arduino Due microcontroller board, XBee transmitter, and uCAM-II camera. Block compressive sensing (BCS) is implemented on the developed platform to validate the characteristics of compressive sensing in a real-world scenario. The reconstruction is performed by using the joint multi-phase decoding (JMD) framework. To the best of our knowledge, no such practical implementation using off the shelf components has yet been conducted for CS.
    Matched MeSH terms: Bandages
  13. Edith, J., Anantha K. R., Karenita K. S., Surayah M., Filzah M. K., Farhana H., et al.
    Honey dressing has been used to treat wounds since thousand years ago, however, it has been vanished of it usage on wounds management. Lately, it resurfaces again and has been used widely by clinicians in managing hard-to-heal ulcers. With the extensive study and research been carried out by scientists, a better understanding on the usage in managing non-healing ulcers has been widely accepted nowadays.
    Matched MeSH terms: Bandages
  14. Ng CL, Reaz MBI, Crespo ML, Cicuttin A, Chowdhury MEH
    Sci Rep, 2020 09 10;10(1):14891.
    PMID: 32913303 DOI: 10.1038/s41598-020-71709-0
    A capacitive electromyography (cEMG) biomedical sensor measures the EMG signal from human body through capacitive coupling methodology. It has the flexibility to be insulated by different types of materials. Each type of insulator will yield a unique skin-electrode capacitance which determine the performance of a cEMG biomedical sensor. Most of the insulator being explored are solid and non-breathable which cause perspiration in a long-term EMG measurement process. This research aims to explore the porous medical bandages such as micropore, gauze, and crepe bandage to be used as an insulator of a cEMG biomedical sensor. These materials are breathable and hypoallergenic. Their unique properties and characteristics have been reviewed respectively. A 50 Hz digital notch filter was developed and implemented in the EMG measurement system design to further enhance the performance of these porous medical bandage insulated cEMG biomedical sensors. A series of experimental verifications such as noise floor characterization, EMG signals measurement, and performance correlation were done on all these sensors. The micropore insulated cEMG biomedical sensor yielded the lowest noise floor amplitude of 2.44 mV and achieved the highest correlation coefficient result in comparison with the EMG signals captured by the conventional wet contact electrode.
    Matched MeSH terms: Bandages*
  15. Ling, Booi C.
    Ann Dent, 1995;2(1):-.
    Temporary obturator is necessary for maxillectomy procedures to minimise functional disabilities of speech and the swallowing of food and fluid following surgery.l.2 It also provides a base to hold surgical packing and/ or tissue conditioners in place. This packing helps to restore function and counter act contraction during healing of the ,tissues at the operated site. Dental clinicians are often faced with the problem of surgical staffs requesting an obturator for their patients at short notice.This article describes a fast technique of constructing an immediate surgical obturator.
    Matched MeSH terms: Bandages
  16. Sawalmeh A, Othman NS, Shakhatreh H
    Sensors (Basel), 2018 Oct 26;18(11).
    PMID: 30373204 DOI: 10.3390/s18113640
    In this paper, the efficient 3D placement of UAV as an aerial base station in providing wireless coverage for users in a small and large coverage area is investigated. In the case of providing wireless coverage for outdoor and indoor users in a small area, the Particle Swarm Optimization (PSO) and K-means with Ternary Search (KTS) algorithms are invoked to find an efficient 3D location of a single UAV with the objective of minimizing its required transmit power. It was observed that a single UAV at the 3D location found using the PSO algorithm requires less transmit power, by a factor of 1/5 compared to that when using the KTS algorithm. In the case of providing wireless coverage for users in three different shapes of a large coverage area, namely square, rectangle and circular regions, the problems of finding an efficient placement of multiple UAVs equipped with a directional antenna are formulated with the objective to maximize the coverage area and coverage density using the Circle Packing Theory (CPT). Then, the UAV efficient altitude placement is formulated with the objective of minimizing its required transmit power. It is observed that the large number of UAVs does not necessarily result in the maximum coverage density. Based on the simulation results, the deployment of 16, 19 and 26 UAVs is capable of providing the maximum coverage density of 78.5%, 82.5% and 80.3% for the case of a square region with the dimensions of 2 km × 2 km, a rectangle region with the dimensions of 6 km × 1.8 km and a circular region with the radius of 1.125 km, respectively. These observations are obtained when the UAVs are located at the optimum altitude, where the required transmit power for each UAV is reasonably small.
    Matched MeSH terms: Bandages
  17. Jamal Othman, Wan Nur Shaziayani Wan Mohd Rosly, Norshuhada Samsudin, Sharifah Sarimah Syed Abdullah, Noor Azizah Mazeni, Muniroh Hamat, et al.
    Jurnal Inovasi Malaysia, 2020;3(2):12-25.
    Penyata Peperiksaan merupakan dokumen rasmi yang membolehkanpelajar menduduki peperiksaan. Maklumat slip peperiksaan yang tidak lengkap boleh menyebabkanpelajar lewat ketempatpeperiksaan atau lebih teruk lagi tidak hadir peperiksaankerana tersalah menyemak jadualdan tempatpeperiksaan. Bagi mengatasi masalah ini, metodologi SDLC (System Development Life Cycle) untuk pembangunan sistem berasaskan webtelah dijalankan.Slip Peperiksaan Komprehensif atau singkatannya ComprESS membolehkan pelajar menjana dan mencetak slip peperiksaan baharu yang mengandungi maklumat lengkapseperti tarikh,masa,tempatdan nombor meja. Pengguna sistem telah memberikan maklumbalas positif melalui pengujian sistem sertamaklumbalas dariatas talian. Melalui temubual dengan pelajar dan staf, mereka sangat yakinbahawa ComprESS telahmenyelesaikan isu maklumat peperiksaan yang tidak lengkap pada penyata peperiksaan dan seterusnya pengurusan peperiksaanlebih efisien.
    Matched MeSH terms: Bandages
  18. Jeckson TA, Neo YP, Sisinthy SP, Gorain B
    J Pharm Sci, 2021 02;110(2):635-653.
    PMID: 33039441 DOI: 10.1016/j.xphs.2020.10.003
    Increasing incidences of chronic wounds urge the development of effective therapeutic wound treatment. As the conventional wound dressings are found not to comply with all the requirements of an ideal wound dressing, the development of alternative and effective dressings is demanded. Over the past few years, electrospun nanofiber has been recognized as a better system for wound dressing and hence has been studied extensively. Most of the electrospun nanofiber dressings were fabricated as single-layer structure mats. However, this design is less favorable for the effective healing of wounds mainly due to its burst release effect. To address this problem and to simulate the organized skin layer's structure and function, a multilayer structure of wound dressing had been proposed. This design enables a sustained release of the therapeutic agent(s), and more resembles the natural skin extracellular matrix. Multilayer structure is also referred to layer-by-layer (LbL), which has been established as an innovative method of drug incorporation and delivery, combines a high surface area of electrospun nanofibers with the multilayer structure mat. This review focuses on LbL multilayer electrospun nanofiber as a superior strategy in designing an optimal wound dressing.
    Matched MeSH terms: Bandages
  19. Jotani MM, Yeo CI, Tiekink ER
    Acta Crystallogr E Crystallogr Commun, 2015 Oct 1;71(Pt 10):1236-41.
    PMID: 26594415 DOI: 10.1107/S2056989015017624
    In the title thio-semicarbazone, C11H15N3S, the p-tolyl-N-H and imino-N-H groups are anti and syn, respectively, to the central thione-S atom. This allows for the formation of an intra-molecular p-tolyl-N-H⋯N(imino) hydrogen bond. The mol-ecule is twisted with the dihedral angle between the p-tolyl ring and the non-hydrogen atoms of the N=CMe2 residue being 29.27 (8)°. The crystal packing features supra-molecular layers lying in the bc plane whereby centrosymmetric aggregates sustained by eight-membered thio-amide {⋯HNCS}2 synthons are linked by further N-H⋯S hydrogen bonds. Layers are connected via methyl-C-H⋯π inter-actions. The supra-molecular aggregation was further investigated by an analysis of the Hirshfeld surface and comparison made to related structures.
    Matched MeSH terms: Bandages
  20. Tan YS, Yeo CI, Tiekink ER
    Acta Crystallogr E Crystallogr Commun, 2015 Aug 1;71(Pt 8):886-9.
    PMID: 26396747 DOI: 10.1107/S2056989015012682
    The title compound, [Fe(C17H14PS)2], is a second monoclinic polymorph (P21/c, with Z' = 1) of the previously reported monoclinic (C2/c, with Z' = 1/2) form [Fang et al. (1995 ▸). Polyhedron, 14, 2403-2409]. In the new form, the S atoms lie to the same side of the mol-ecule with the pseudo S-P⋯P-S torsion angle being -53.09 (3)°. By contrast to this almost syn disposition, in the C2/c polymorph, the Fe atom lies on a centre of inversion so that the S atoms are strictly anti, with a pseudo-S-P⋯P-S torsion angle of 180°. The significant difference in mol-ecular conformation between the two forms does not result in major perturbations in the P=S bond lengths nor in the distorted tetra-hedral geometries about the P atoms. The crystal packing of the new monoclinic polymorph features weak Cp-C-H⋯π(phen-yl) inter-actions consolidating linear supra-molecular chains along the a axis. These pack with no directional inter-actions between them.
    Matched MeSH terms: Bandages
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