Journal: Nature Communications

Article Title: Reconfigurable skin electronics enabled by intrinsically stretchable photoelectric memory transistors

doi: 10.1038/s41467-026-71589-4

Figure Lengend Snippet: a Schematic of the device architecture with material details for each layer, including AFM phase images of the stretchable semiconductor and dielectric layers (right; scale bar: 200 nm). b Transfer curves under optoelectrical programming (left) and erasing (right). c Operating mechanism of the photoelectric memory transistor. d Schematic of AOS (always ‘1’) and ACS (always ‘0’) states induced by programming and erasing with different light and bias polarity. e Simulated output characteristics of a 4T R-LIM device demonstrating OR (partially AOS) and NAND (partially ACS) logic functions. f UV-vis-NIR spectra of semiconductor and dielectric films. g FT-IR spectra of SEBS, SEBS-g-MAH, and SEBS-g-MAH films after 254 nm UV irradiation. h Comparison of interface trap density (D it ) across different programmed states of the memory transistor (mean ± s.d.; n = 3) i KPFM surface potential maps of semiconductor films in initial, programmed, and erased states of MIS devices (scale bar: 1 μm).

Article Snippet: The UV–vis–NIR absorption spectra were obtained by using UV–vis–NIR spectroscopy (Jasco V-770).

Techniques: Irradiation, Comparison

Journal: Small Science

Article Title: Intrinsically Disordered Polypeptides‐Based Stealth Materials Enable Enhanced Photothermal Cancer Therapy Using an In Situ Fiber‐Based Penetrating Laser System

doi: 10.1002/smsc.70342

Figure Lengend Snippet: Photothermal conversion analysis using novel contact‐mode NIR laser irradiation via GI‐POF rigid endoscope. (a) Schematic diagram of the graded‐index plastic optical fiber (GI‐POF) rigid endoscope system architecture. The output power at the tip of the GI‐POF rigid endoscope was set to 300 or 500 mW, corresponding to power densities of approximately 91 and 152 W cm −2 , respectively, based on a laser emission area of 0.33 mm 2 . (b) Illustration demonstrating minimally invasive contact‐mode laser irradiation to tumor‐bearing mice. (c) Experimental setup for photothermal conversion measurement in solution. (d) Concentration‐dependent photothermal heating of IDP1‐CNH/ICG suspension. Temperature increase (Δ T ) was measured at CNH/ICG concentrations ranging from 1 to 100 μg mL −1 under constant 300 mW laser irradiation for 5 min. Data are presented as mean ± SD ( n = 3). (e) Laser power‐dependent photothermal heating at a fixed IDP1‐CNH/ICG concentration (10 μg mL −1 ). Data are presented as mean ± SD ( n = 3). (f) Thermographic images visualizing spatial temperature distribution during contact‐mode laser irradiation. IDP1‐CNH/ICG suspension (10 μg mL −1 , top row) and 50 μg mL −1 (bottom row) were irradiated at 500 mW. (g) Direct comparison of contact‐mode versus noncontact‐mode laser irradiation efficiency. IDP1‐CNH/ICG suspension (10 μg mL −1 ) and PBS control were irradiated at 500 mW for 5 min using either contact‐mode (GI‐POF rigid endoscope insertion with power intensity ∼152 W cm −2 ) or noncontact‐mode (external 808 nm laser positioned ∼1 cm above solution surface). Data are presented as mean ± SD ( n = 3). Power intensity at the fiber tip was calculated as 500 mW/0.33 mm 2 = 152 W cm −2 based on a laser emission area of 0.33 mm 2 at the endoscope tip. (h) Photothermal stability and recyclability assessment. IDP1‐CNH/ICG suspension (50 μg mL −1 ) was subjected to five repeated heating–cooling cycles (500 mW, 5 min heating followed by natural cooling to room temperature). (i) UV–vis‐NIR absorbance spectra of IDP1‐CNH/ICG before (pre‐irradiation, blue line) and after (post‐irradiation, red line) laser irradiation (500 mW, 5 min).

Article Snippet: The dispersion and loading efficiency of CNH and ICG were assessed by UV–vis‐NIR spectrometry (V‐730 BIO; Jasco, Tokyo, Japan).

Techniques: Irradiation, Concentration Assay, Suspension, Comparison, Control