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A novel methoxy-poly(ethylene glycol) modified nano-graphene oxide (NGO-mPEG) was designed and synthesized as a photosensitizer (PS) carrier for photodynamic therapy of cancer. NGO with a size below 200 nm was prepared using a modified Hummers’ method. NGO was observed by AFM to exhibit a structure with single-layer graphene oxide sheets down to a few nanometers in height. Hydrophilic mPEG conjugation...
In this paper, an optimization model with a linear objective function subject to a system of interval-valued fuzzy relational equations is presented. We convert the problem to an equivalent problem involving 0-1 integer programming and present a procedure to find an optimal solution. For solving it more effectively, we propose a method to simplify the work of computing. Two numerical examples are...
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