Material and energy costs associated with open-source optics component fabrication compared to commercial prices and percent savings.

<p>Notes:</p>a<p>The price of 3 mm ABS filament is $0.038/gram [3D Printer Stuff. Available: <a href="http://www.3dprinterstuff.com/shop/page/4?shop_param=Accessed" target="_blank">http://www.3dprinterstuff.com/shop/page/4?shop_param=Accessed</a> 2012 Oct 19.].</p>b<p>The national average cost of electricity is 11.53cents/kWh [US Energy Information Administration. Available: <a href="http://www.eia.gov/beta/enerdat/#/topic/7?agg=0,1&geo=g&endsec=vg&freq=A&start=2008&end=2011&charted=1" target="_blank">http://www.eia.gov/beta/enerdat/#/topic/7?agg=0,1&geo=g&endsec=vg&freq=A&start=2008&end=2011&charted=1</a> Accessed 2012 Oct 19.] and the electricity cost was derived from multimeter is 0.006925 kWh/gram (using 3 mm ABS) assuming a Prusa RepRap 3-D printer.</p>c<p>Commercial prices were derived from website data from various vendors including: Edmund Optics, Thorlabs, McMaster-Carr, AutoMate Scientific, and Pasco.</p

Open-source lab jack.

<p>Open-source lab jack.</p

Static fiber-optic holder.

<p>Static fiber-optic holder.</p

An open-source self-replicating rapid prototyper printing a 3-D optical component – filter bracket.

<p>An open-source self-replicating rapid prototyper printing a 3-D optical component – filter bracket.</p

Rendered parametric design in OpenSCAD on an open-source optical chopper wheel with a) 10 slots, b) 15 slots and c) 60 slots.

<p>Rendered parametric design in OpenSCAD on an open-source optical chopper wheel with a) 10 slots, b) 15 slots and c) 60 slots.</p

Screen holder.

<p>Screen holder.</p

Enantioselective Synthesis of Nonracemic Geminal Silylboronates by Pt-Catalyzed Hydrosilylation

A Pt-catalyzed enantioselective hydrosilylation of alkenylboronates is described. This reaction occurs with high regio- and enantioselectivity, providing a convenient route to chiral nonracemic geminal silylboronates. These compounds are useful reagents in stereoselective synthesis

Magnetic optics base.

<p>Magnetic optics base.</p

Parametric automated filter wheel changer.

<p>Parametric automated filter wheel changer.</p

Funnel plot of included randomized controlled trials.

<p>Funnel plot of included randomized controlled trials.</p