An ultralong single organic semiconducting nano/microwire (NMW) is difficult to obtain. Here we show that this NMW can easily be prepared by using drying under solvent atmosphere method. This technique is not only unique, but also very compatible with our active material, spiro-substituted perylenetetracarboxylic diimide. A single NMW with a length of up to ∼5.5 mm and an aspect ratio of ∼9200 can be obtained. Finally, we succeeded to measure the electrical resistivity of a single NMW with values between 1 × 10(2) and 1 × 10(4) Ω m and the growth direction can be controlled as well by using a prestructured substrate.

Clinically relevant postoperative pancreatic fistula (CR-POPF) is a common severe surgical complication after pancreatic surgery. Current risk stratification systems mostly rely on intraoperatively assessed factors like manually determined gland texture or blood loss. We developed a preoperatively available image-based risk score predicting CR-POPF as a complication of pancreatic head resection. Frequency of CR-POPF and occurrence of salvage completion pancreatectomy during the hospital stay were associated with an intraoperative surgical (sFRS) and image-based preoperative CT-based (rFRS) fistula risk score, both considering pancreatic gland texture, pancreatic duct diameter and pathology, in 195 patients undergoing pancreatic head resection. Based on its association with fistula-related outcome, radiologically estimated pancreatic remnant volume was included in a preoperative (preFRS) score for POPF risk stratification. Intraoperatively assessed pancreatic duct diameter (p < 0.001), gland texture (p < 0.001) and high-risk pathology (p < 0.001) as well as radiographically determined pancreatic duct diameter (p < 0.001), gland texture (p < 0.001), high-risk pathology (p = 0.001), and estimated pancreatic remnant volume (p < 0.001) correlated with the risk of CR-POPF development. PreFRS predicted the risk of CR-POPF development (AUC = 0.83) and correlated with the risk of rescue completion pancreatectomy. In summary, preFRS facilitates preoperative POPF risk stratification in patients undergoing pancreatic head resection, enabling individualized therapeutic approaches and optimized perioperative management.

In the course of proceeding miniaturization of electronic devices and circuits micro-and nanostructures are gaining in importance. In this regard organic functional materials are becoming more important beside their inorganic counterparts because of their favorable properties. In this paper we report on fabrication of highly uniform micro-/nanowires from n-semiconducting perylenetetracarboxylic diimide derivative N,N-diperfluorophenyl-3,4,9,10-perylenetetracarboxylic diimide (DFPP). A solution-based method is used to prepare well-separated one-dimensional structures with high aspect ratio on a desired substrate. Integration of these fibers in field effect transistors shows the potential of usage in air-stable organic electronic devices and allows for extraction of charge carrier mobility. Fig. 1 Chemical structure of used organic n-type semiconductor N,Ndiperfluorophenyl-3,4,9,10-perylenetetracarboxylic diimide (DFPP). Macromolecular Chemistry and Molecular Materials (mmCmm),

We present unique properties of self‐assembled spirobi‐fluorene‐substituted perylenetetraccarboxylic diimide wires. The wires have shown an unusual molecular packing motif beyond the typical π‐π stacking. We are also able to estimate the corresponding electron mobility. Finally, the self‐healing effect of such wires, including the reversible color change, is presented and described

We report the crucial role of solvent reservoir in drying under solvent atmosphere method on the growth of self-assembled micro- and nanowires from the solution of organic semiconducting N,N′-diperfluorophenyl-3,4,9,10-perylenetetracarboxylic diimide.