The recently introduced OSTE polymer technology has shown very useful features for microfluidics for lab-on-a-chip applications. However, no data has yet been published on cell viability on OSTE. In this work, we study the biocompatibility of three OSTE formulations by cell growth experiments. Moreover, we investigate the effect of varying thiol excess on cell viability on OSTE surfaces. The re...

Materials based on novel Off-Stoichiometry Thiol-Ene polymers, abbreviated OSTE, show promising properties as materials for low cost and scalable manufacturing of microand nanosystems such as lab-on-chip devices. The OSTE materials have tunable mechanical properties, offer possibility for low temperature bonding to many surfaces via tunable surface chemistry, and can be used in soft lithography...

BACKGROUND The flexibility of implantable neural probes has increased during the last 10 years, starting with stiff materials such as silicone to more flexible materials like polyimide. We have developed a novel polymer based on Off-Stoichiometry Thiol-Enes + Epoxy (OSTE+, consisting of a thiol, two allyls, an epoxy resin and two initiators), which is up to 100 times more flexible than polyimid...

OBJECTIVE To determine reliability and validity of objectively structured teaching examination (OSTE) and the difference in the examination scores of two consecutive Health Professions Education batches. STUDY DESIGN Cross-sectional analytical study. PLACE AND DURATION OF STUDY The College of Physicians and Surgeons Pakistan, Karachi, from November 2011 to April 2012. METHODOLOGY The OSTE...

We present an entirely novel, self-limiting photolithography mechanism in off-stoichiometry thiol-ene (OSTE) polymers enabling high-resolution and high-aspect ratio features. The OSTE polymers have previously been shown to be promising materials for fabrication of microfluidic devices with tailored surface modifications and mechanical properties. We here introduce direct lithography for micropa...

This article describes the creation of an objective structured teaching examination (OSTE) to assess a dental faculty development program. An OSTE is a performance-based measure that utilizes standardized students and is designed to measure observable teaching skills. In spring 2010, the authors developed, implemented, and evaluated an OSTE to assess a New York University College of Dentistry (...

BACKGROUND Chief Residents must lead, manage and mentor a diverse and often large group of residents, however there is a lack of formal leadership training throughout graduate medical education. OBJECTIVE Development of a 3-part Chief Resident (CR) Program focused on leading, managing and mentoring. DESIGN Each participant completes an Emotional Intelligence (EI) Inventory prior to the day-...

In this paper we introduce a new polymer for use in microfluidic applications, based on the off-stoichiometric thiol–ene-epoxy (OSTE+) polymer system, but with rubbery properties. We characterize and benchmark the new polymer against PDMS. We demonstrate that Rubbery OSTE+: has more than 90% lower permeability to gases compared to PDMS, has little to no absorption of dissolved molecules, can be...

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