Journal: RSC Advances

Article Title: Open micro-combinatorial analysis systems of crystal growth critical points of a π-conjugated molecule in ionic liquid nanoliter droplets †

doi: 10.1039/d5ra00170f

Figure Lengend Snippet: Schematic for preparing a dot array, consisting of anthracene in an ionic liquid, by inkjet printing for simultaneous screening and construction of a phase diagram. (a) Printing of anthracene in DCB solution, (b) formation of anthracene crystals after air drying, (c) printing of p C8PryC1 derivatives on anthracene derivative crystals, and (d) microscopy observation of anthracene crystal dissolution at the heating stage.

Article Snippet: The vials were set in a piezoelectric inkjet printer (LaboJet-500, MICROJET, Japan) equipped with an IJHB-1000 thermal heating head.

Techniques: Microscopy, Dissolution

Journal: RSC Advances

Article Title: Open micro-combinatorial analysis systems of crystal growth critical points of a π-conjugated molecule in ionic liquid nanoliter droplets †

doi: 10.1039/d5ra00170f

Figure Lengend Snippet: Flying velocity of droplets plotted against the pulse width of applied voltages in (a) 100 mM anthracene in DCB and (b) p C8PryC1 FSA. Flying velocity (gray) of droplets and volume (blue) of droplets plotted against applied voltages in (c) 100 mM anthracene in DCB and (d) p C8PryC1 FSA. The frequency of applied voltages and the temperature of the inkjet head were 500 Hz and 30 °C for anthracene, and 120 Hz and 40 °C for p C8PryC1 FSA, respectively. The applied voltages were fixed at 20 V in (a) and 50 V in (b). The pulse width was set at 75 μs in (c) and (d). The volume of a droplet was obtained by dividing the weight of 20 000 droplets by the density of (c) DCB and (d) p C8PryC1 FSA.

Article Snippet: The vials were set in a piezoelectric inkjet printer (LaboJet-500, MICROJET, Japan) equipped with an IJHB-1000 thermal heating head.

Techniques:

Journal: RSC Advances

Article Title: Open micro-combinatorial analysis systems of crystal growth critical points of a π-conjugated molecule in ionic liquid nanoliter droplets †

doi: 10.1039/d5ra00170f

Figure Lengend Snippet: Optical microscope images of a glass substrate obtained at each step of preparing a nanoliter solution. (a) Anthracene (51 nL) in DCB at 100 mM by inkjet printing (frequency: 500 Hz, pulse width: 75 μs, head temperature: 30 °C, applied voltage: 20 V, number of ejections: 86); (b) after air drying for several hours to evaporate DCB [0.91 μg (5.1 nmol) of anthracene]; (c) 34 nL of anthracene in p C8PryC1 FSA at 150 mM by inkjet printing (frequency: 120 Hz, pulse width: 75 μs, head temperature: 40 °C, applied voltage: 55 V, number of ejections: 65); and (d) after heating at a heating rate of 1.0 °C min −1 to 57 °C.

Article Snippet: The vials were set in a piezoelectric inkjet printer (LaboJet-500, MICROJET, Japan) equipped with an IJHB-1000 thermal heating head.

Techniques: Microscopy

Journal: RSC Advances

Article Title: Open micro-combinatorial analysis systems of crystal growth critical points of a π-conjugated molecule in ionic liquid nanoliter droplets †

doi: 10.1039/d5ra00170f

Figure Lengend Snippet: Dissolution temperatures of anthracene in p C8PryC1 FSA at 150 mM plotted against heating rates. The volumes of p C8PryC1 FSA were 0.5 mL and 34 nL for the conventional (gray circle) and inkjet (blue square) techniques, respectively. The dissolution temperature was the temperature at which the crystals were completely dissolved during observation with the unaided eye using the conventional technique or with a microscope using the inkjet technique.

Article Snippet: The vials were set in a piezoelectric inkjet printer (LaboJet-500, MICROJET, Japan) equipped with an IJHB-1000 thermal heating head.

Techniques: Dissolution, Microscopy

Journal: RSC Advances

Article Title: Open micro-combinatorial analysis systems of crystal growth critical points of a π-conjugated molecule in ionic liquid nanoliter droplets †

doi: 10.1039/d5ra00170f

Figure Lengend Snippet: Phase diagrams of anthracene in p C8PryC1 FSA by applying the inkjet (blue square) and conventional (gray circle) techniques, at p C8PryC1 FSA volumes of 25–100 nL and 0.5–1.0 mL, respectively, at heating rates of 0.20 °C min −1 and 0.017 °C min −1 , respectively. Anthracene solutions and p C8PryC1 FSA were ejected under the optimized conditions depicted in .

Article Snippet: The vials were set in a piezoelectric inkjet printer (LaboJet-500, MICROJET, Japan) equipped with an IJHB-1000 thermal heating head.

Techniques:

Journal: RSC Advances

Article Title: Open micro-combinatorial analysis systems of crystal growth critical points of a π-conjugated molecule in ionic liquid nanoliter droplets †

doi: 10.1039/d5ra00170f

Figure Lengend Snippet: Optical microscope images in (a) bright field and (b) cross-Nicol mode of anthracene crystals in p C8PryC1 FSA droplets, at 35 nL and 150 mM, printed using the inkjet technique. Anthracene solutions and p C8PryC1 FSA were ejected onto a glass substrate at (c) 25 °C under the optimized conditions illustrated in . The sample was heated at a rate of 0.20 °C min −1 . Parts (d–g) show images at 50 °C, 51 °C, 52 °C, and 55 °C, respectively. Gray arrows and purple circles indicate the droplets in which anthracene dissolved completely. The characters A (analyzer) and P (polarizer) indicate the direction of the polarized light.

Article Snippet: The vials were set in a piezoelectric inkjet printer (LaboJet-500, MICROJET, Japan) equipped with an IJHB-1000 thermal heating head.

Techniques: Microscopy

Journal: RSC Advances

Article Title: Open micro-combinatorial analysis systems of crystal growth critical points of a π-conjugated molecule in ionic liquid nanoliter droplets †

doi: 10.1039/d5ra00170f

Figure Lengend Snippet: Comparison between the conventional and our techniques

Article Snippet: The vials were set in a piezoelectric inkjet printer (LaboJet-500, MICROJET, Japan) equipped with an IJHB-1000 thermal heating head.

Techniques: Comparison, Solvent, Microscopy