<div dir="ltr"><div>Hi, Russ –</div><div><br></div><div>PDMS processing for soft lithography is something you want to try to keep out of the cleanroom, or at least have a separate "dirty space" with strict protocols to manage this type of work. Once PDMS gets on "clean" surfaces, it's extremely difficult to remove. Happy to have a call with you and our team to give you some pointers and answer any questions you might have. </div><div><br></div><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><span><div dir="ltr" style="margin-left:0pt" align="left"><span><div dir="ltr" style="margin-left:0pt" align="left"><span><div dir="ltr" style="margin-left:0pt" align="left"><span><div dir="ltr" style="margin-left:0pt" align="left"><span><div dir="ltr" style="margin-left:0pt" align="left"><div style="margin-left:0pt" align="left">Best,</div><div dir="ltr" style="margin-left:0pt" align="left">Gerald</div><table style="border:none;border-collapse:collapse;table-layout:fixed;width:468pt"><colgroup><col width="161"><col></colgroup><tbody><tr style="height:0pt"><td style="border-right:solid #011f5b 0.5pt;vertical-align:top;padding:5pt 5pt 5pt 5pt;overflow:hidden"><p dir="ltr" style="line-height:1.2;text-align:right;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Arial;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap"><span style="border:none;display:inline-block;overflow:hidden;width:133px;height:83px"><img src="https://lh5.googleusercontent.com/NUqjkaspQaBTb7N06qB3MRywBg5w4pDGo_OuUGZrMj3ewACFau26SJnRwTvMgc-YDXpSM3-qTmY_iqr-ttCJgr1M-OKuod2NDI9FwckJCRLEPfwAmDaX6bsMpi0ihlYL0fZqTvJc" width="133" height="83" style="margin-left:0px;margin-top:0px"></span></span></p></td><td style="border-left:solid #011f5b 0.5pt;vertical-align:top;padding:5pt 5pt 5pt 5pt;overflow:hidden"><p dir="ltr" style="line-height:1.44;margin-top:0pt;margin-bottom:0pt"><font face="times new roman, serif"><span style="font-size:10pt;color:rgb(1,31,91);background-color:transparent;font-weight:700;vertical-align:baseline;white-space:pre-wrap">Gerald G. Lopez, Ph.D.</span></font></p><p dir="ltr" style="line-height:1.44;margin-top:0pt;margin-bottom:0pt"><span style="background-color:transparent;vertical-align:baseline"><font color="#011f5b" face="times new roman, serif"><span style="font-size:13.3333px;white-space:pre-wrap">Director of Operations and Business Development & </span><span style="font-size:13.3333px;white-space:pre-wrap">Center Associate Director</span></font><br></span></p><p dir="ltr" style="line-height:1.44;margin-top:0pt;margin-bottom:0pt"><span style="font-size:8pt;color:rgb(1,31,91);background-color:transparent;vertical-align:baseline;white-space:pre-wrap"><font face="times new roman, serif">University of Pennsylvania | Singh Center for Nanotechnology </font></span></p><p dir="ltr" style="line-height:1.44;margin-top:0pt;margin-bottom:0pt"><font face="times new roman, serif"><span style="font-size:8pt;color:rgb(1,31,91);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">NNCI Mid-Atlantic Nanotechnology Hub (MANTH)</span><span style="font-size:10pt;color:rgb(1,31,91);background-color:transparent;vertical-align:baseline;white-space:pre-wrap"> ∙ </span><a href="http://nnci.net/" target="_blank"><span style="font-size:8pt;color:rgb(1,31,91);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">nnci.net</span></a></font></p><p dir="ltr" style="line-height:1.44;margin-top:0pt;margin-bottom:0pt"><span style="font-size:8pt;color:rgb(1,31,91);background-color:transparent;vertical-align:baseline;white-space:pre-wrap"><font face="times new roman, serif">3205 Walnut Street, Philadelphia, PA 19104 USA
Deliveries: </font></span><font color="#011f5b" face="times new roman, serif"><span style="font-size:10.6667px;white-space:pre-wrap">3231 Walnut Street, LRSM Building, Philadelphia, PA 19104</span></font></p><p dir="ltr" style="line-height:1.44;margin-top:0pt;margin-bottom:0pt"><font face="times new roman, serif"><a href="http://nano.upenn.edu/" target="_blank"><span style="font-size:8pt;color:rgb(1,31,91);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">nano.upenn.edu</span></a><span style="font-size:10pt;color:rgb(1,31,91);background-color:transparent;vertical-align:baseline;white-space:pre-wrap"> ∙ </span><span style="font-size:8pt;color:rgb(1,31,91);background-color:transparent;vertical-align:baseline;white-space:pre-wrap"><a href="mailto:lopezg@seas.upenn.edu" target="_blank">lopezg@seas.upenn.edu</a> ∙ +1-215-573-4041 ∙ </span><a href="http://linkedin.com/in/geraldglopez/" target="_blank"><span style="font-size:8pt;color:rgb(1,31,91);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">linkedin.com/in/geraldglopez/</span></a></font></p></td></tr></tbody></table></div></span></div></span></div></span></div></span></div></span></div></div></div><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Sep 4, 2025 at 8:09 AM Russ Renzas <<a href="mailto:rrenzas@unr.edu" target="_blank">rrenzas@unr.edu</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">



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Is anyone familiar with PDMS (or other material) mold fabrication? Any procedures or gotchas to worry about? </div>
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Bio faculty member asking if we can make molds in our fab. I only know how to make semiconductor, photonic, and quantum devices. </div>
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Thanks!</div>
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Russ</div>
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Russ Renzas</div>
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University of Nevada, Reno</div>
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