ORCID Profile
0000-0002-8882-608X
Current Organisations
University of Waikato
,
UNSW Sydney
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Publisher: Elsevier BV
Date: 10-2021
Publisher: Elsevier BV
Date: 05-2010
Publisher: Elsevier BV
Date: 02-2020
Publisher: Springer Singapore
Date: 2016
Publisher: Elsevier BV
Date: 06-2014
Publisher: Elsevier BV
Date: 03-2017
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D0EE03167D
Abstract: A comprehensive overview on the recent progress of multifunctional supercapacitors which combine energy storage capability with other functions.
Publisher: Elsevier BV
Date: 2010
Publisher: Elsevier BV
Date: 05-2021
Publisher: Elsevier BV
Date: 11-2021
Publisher: Wiley
Date: 06-10-2010
DOI: 10.1002/APP.31335
Publisher: Springer Science and Business Media LLC
Date: 02-07-2010
Publisher: Informa UK Limited
Date: 2011
Publisher: Elsevier BV
Date: 10-2021
Publisher: Springer Science and Business Media LLC
Date: 08-2022
Publisher: Informa UK Limited
Date: 28-11-2016
Publisher: Elsevier BV
Date: 2016
Publisher: Trans Tech Publications, Ltd.
Date: 11-2007
DOI: 10.4028/WWW.SCIENTIFIC.NET/AMR.29-30.319
Abstract: Industrial hemp fibre was treated with alkali and the influence of this treatment on interfacial shear strength (assessed using the single fibre pull-out test) and composite strength with an epoxy resin, over a range of epoxy resin to curing agent ratios, was investigated. Scanning electron microscopy was conducted to assess the fracture behaviour of the composite tensile test specimens. It was found that alkali treatment increased the interfacial shear strength and composite tensile strength, Young’s modulus and elongation at break. The highest tensile strength was obtained with an epoxy resin to curing agent ratio of 1:1 while the best Young’s modulus was achieved with a resin to curing agent ratio of 1:1.2.
Publisher: MDPI AG
Date: 18-08-2021
Abstract: Carbon fibre reinforced polymer composites have high mechanical properties that make them exemplary engineered materials to carry loads and stresses. Coupling fibre and matrix together require good understanding of not only fibre morphology but also matrix rheology. One way of having a strongly coupled fibre and matrix interface is to size the reinforcing fibres by means of micro- or nanocarbon materials coating on the fibre surface. Common coating materials used are carbon nanotubes and nanofibres and graphene, and more recently carbon black (colloidal particles of virtually pure elemental carbon) and graphite. There are several chemical, thermal, and electrochemical processes that are used for coating the carbonous materials onto a carbon fibre surface. Sizing of fibres provides higher interfacial adhesion between fibre and matrix and allows better fibre wetting by the surrounded matrix material. This review paper goes over numerous techniques that are used for engineering the interface between both fibre and matrix systems, which is eventually the key to better mechanical properties of the composite systems.
Publisher: Springer Science and Business Media LLC
Date: 02-2014
Publisher: Elsevier BV
Date: 11-2011
Publisher: Elsevier BV
Date: 05-2021
Publisher: Elsevier BV
Date: 05-2023
Publisher: Elsevier BV
Date: 05-2016
Publisher: Elsevier BV
Date: 10-2015
Publisher: American Chemical Society (ACS)
Date: 04-10-2018
Publisher: Wiley
Date: 20-11-2022
Abstract: Wearable temperature sensors with high accuracy are critical for human health monitoring. Ideally, they should show accuracy matching that of medical‐grade thermometers (i.e., ± ≈0.1–0.2 °C). Achieving this goal has proven challenging for sensors that must also meet key wearable requirements, such as flexibility, stretchability, and breathability. Herein, a new stretchable supercapacitive temperature sensor with a resolution of ±0.2 °C, is presented, which was achieved by. Two new strategies to increase temperature sensitivity and minimize the interferences of mechanical stretching and pressure: a) synthesizing an ion‐conductive NaCl‐organogel to serve as the redox‐active separator to increase sensitivity and suppress interference of compression and b) using a kirigami design to decrease the interference of stretch and improve breathability. These two novel strategies endow the supercapacitive temperature sensors with a temperature accuracy of ±0.2 °C and exceptionally high sensitivity of 0.095 °C −1 , which is more than 13 times higher than traditional dielectric‐capacitive sensors. The potential of the supercapacitive sensor in measuring body temperature is demonstrated by continuously monitoring skin temperatures under a medical compression garment that exerts pressure on the skin and the unsteady wrist flexion. The findings confirm that the organogel‐based supercapacitive sensors offer an extraordinary temperature accuracy significantly better than wearable sensors reported in the literature. The combined characteristics of high resolution, linearity, breathability, and stretchability make this sensor a promising candidate for skin‐interfaced health monitoring devices.
Publisher: MDPI AG
Date: 28-05-2022
Abstract: The selection of biomaterials as biomedical implants is a significant challenge. Ultra-high molecular weight polyethylene (UHMWPE) and composites of such kind have been extensively used in medical implants, notably in the bearings of the hip, knee, and other joint prostheses, owing to its biocompatibility and high wear resistance. For the Anterior Cruciate Ligament (ACL) graft, synthetic UHMWPE is an ideal candidate due to its biocompatibility and extremely high tensile strength. However, significant problems are observed in UHMWPE based implants, such as wear debris and oxidative degradation. To resolve the issue of wear and to enhance the life of UHMWPE as an implant, in recent years, this field has witnessed numerous innovative methodologies such as biofunctionalization or high temperature melting of UHMWPE to enhance its toughness and strength. The surface functionalization/modification/treatment of UHMWPE is very challenging as it requires optimizing many variables, such as surface tension and wettability, active functional groups on the surface, irradiation, and protein immobilization to successfully improve the mechanical properties of UHMWPE and reduce or eliminate the wear or osteolysis of the UHMWPE implant. Despite these difficulties, several surface roughening, functionalization, and irradiation processing technologies have been developed and applied in the recent past. The basic research and direct industrial applications of such material improvement technology are very significant, as evidenced by the significant number of published papers and patents. However, the available literature on research methodology and techniques related to material property enhancement and protection from wear of UHMWPE is disseminated, and there is a lack of a comprehensive source for the research community to access information on the subject matter. Here we provide an overview of recent developments and core challenges in the surface modification/functionalization/irradiation of UHMWPE and apply these findings to the case study of UHMWPE for ACL repair.
Publisher: Elsevier BV
Date: 11-2019
Publisher: Elsevier BV
Date: 07-2016
Publisher: Walter de Gruyter GmbH
Date: 2008
DOI: 10.2478/V10026-008-0027-1
Abstract: The potential of burned water hyacinth (BWH) for phenol adsorption from aqueous solution was studied. Batch kinetic and isotherm studies were carried out under varying experimental conditions of contact time, phenol concentration, adsorbent dosage and pH. The pH at the point of zero charge (pH PZC ) of the adsorbent was determined by the titration method and the value of 8.8 ± 0.2 was obtained. The FTIR of the adsorbent was carried out in order to find the potential adsorption sites for the interaction with phenol molecules. The Freundlich and Langmuir adsorption models were used for the mathematical description of adsorption equilibrium and it was found that the experimental data fitted very well to the Langmuir model. Maximum adsorption capacity of the adsorbent was found to be 30.49 mg/g. Batch adsorption models, based on the assumption of the pseudo-first-order and pseudo-second-order models, were applied to examine the kinetics of the adsorption. The results showed that kinetic data closely followed the pseudo-second-order model.
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C8SE00068A
Abstract: A multifunctional nano-heterostructured electrocatalyst of transition metal/metal oxide (nickel/nickel oxide) embedded on nitrogen-doped graphene is reported.
Publisher: Elsevier BV
Date: 11-2021
Publisher: Elsevier BV
Date: 11-2018
Publisher: Elsevier BV
Date: 2021
Publisher: Informa UK Limited
Date: 2009
Publisher: SAGE Publications
Date: 18-11-2014
Abstract: Acrodur solution and dispersion have been developed as alternative wood adhesives to phenolic and urea formaldehyde resins. They are non-corrosive and do not emit carcinogenic gases. Contrary to most resins used in natural plant fibre composites, Acrodur has superior tolerance to moisture during composite fabrication and thus drying of the preforms may be minimised or eliminated. The aim of this study was to produce optimised flax fabric reinforced Acrodur biocomposites by varying the ratio between Acrodur solution and dispersion, relative humidity, curing time and temperature. The optimised biocomposites provided a combination of specific tensile strength 57.9 MPa-cm 3 /g and specific Young’s modulus 5.5 GPa-cm 3 /g at a low density 0.91 g/cm 3 . Thermogravimetric analysis and contact angle measurement showed that the biocomposites had higher thermal stability and hydrophobicity than the fabrics. The low loss of tensile properties upon water immersion was explained by tortuous wicking path in the biocomposites.
Publisher: Elsevier BV
Date: 06-2021
Publisher: Elsevier BV
Date: 09-2020
Publisher: Springer Science and Business Media LLC
Date: 10-2003
Abstract: A rapid and reproducible method is described that employs solid-phase extraction (SPE) using dichloromethane, followed by gas chromatography (GC) with flame ionization detection for the determination of benzene, toluene, ethylbenzene, xylene and cumene (BTEXC) from Buriganga River water of Bangladesh. The method was applied to detect BTEXC in a s le collected from the surface, or 5 cm depth of water. Two-hundred milliliters of n-hexane-pretreated and filtered water s les were applied directly to a C18 SPE column. BTEXC were extracted with dichloromethane and the BTEX concentrations were obtained to be 0.1 to 0.37 microg ml(-1). The highest concentration of benzene was found as 0.37 microg ml(-1) with a relative standard deviation (RSD) of 6.2% cumene was not detected. The factors influencing SPE e.g., adsorbent types, s le load volume, eluting solvent, headspace and temperatures, were investigated. A cartridge containing a C18 adsorbent and using dichloromethane gave a better performance for the extraction of BTEXC from water. Average recoveries exceeding 90% could be achieved for cumene at 4 degrees C with a 2.7% RSD.
Publisher: Elsevier BV
Date: 05-2023
No related grants have been discovered for Mohammad Saiful Islam.