Bagasse agave tequilana fibres (ATF), an abundant by-product of Mexican tequila production, were characterised, treated and investigated as a reinforcement and filler material for polylactic acid (PLA) green composites.Two fibre pre-treatments were investigated: alkali (8% NaOH solution) and enzymatic (0.4% Pectate lyase solution). Composites pellets of 20, 40 and 60 % (w/v) of ATF in PLA were manufactured using extrusion moulding. Press moulding was used to fabricate samples composite plates. Tensile, flexural, impact and water absorption properties were investigated on machined samples.

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This study led to the development of a parametric design method for mass-customised head/face products. A systematic review of different approaches for mass customization was conducted, identifying advantages and limitations for their application to new product development. A parametric modelling algorithm of a 3D human face was developed using selected scanned 3D head models. The algorithm was developed from a set of measurable and adjustable parameter points related to the facial geometry. These parameters were defined using planimetry. Using the assigned parameter values as input, the parametric model generated 3D models of a human face that served as a reference for the design of customized eyewear. The current challenges and opportunities of mass customized head/face products are described, along with the possibilities for new parametric product design approaches to enable rapid manufacturing and mass customization. This study also explored whether a new parametric design framework for mass customization could be effectively implemented as an early-stage new product development strategy for head/face products.

This paper examines a long-term study on patient experience to identify value generated through collaborative medical design research, in developing a scalp cooling device to prevent chemotherapy-induced alopecia (CIA)/ hair-loss. Developing a new medical device is long and complex, requiring a cross-platform multi-disciplinary team. User feedback is essential to ensure continuous development to improve efficacy. Qualitative and quantitative data was gathered from chemotherapy patients using scalp cooling in 9 different countries.Analysis of patient experience captures the impact design research has had for scalp cooling patients globally and guides continuous development, placing the patient at the centre of the design method, driven primarily by the aim of maximising treatment efficacy for all patients and promoting positive patient experiences. Overall, patient experience of scalp cooling using this device is highly positive and impacts significantly on five key areas of wellbeing. The outcomes will help develop an improved cap for global use.