Tunable laser with sub-2 Watts of optical power from a silicon photonics device
Peer-Reviewed Publication
Updates every hour. Last Updated: 6-Jul-2025 04:10 ET (6-Jul-2025 08:10 GMT/UTC)
High output power signal with high quality is needed for various applications today ranging from telecom to optical sensing. Such high-power systems aren’t usually associated with integrated photonics (which helps miniaturize the system, but at the cost of severe reduction in signal power). Scientist in Germany have overcome this challenge and have demonstrated very high-power tunable laser in silicon photonics with output power reaching ~2 Watts.
Aerobic glycolysis is critical for tumor growth and metastasis. Previously, we have found that the overexpression of the inhibitor of growth 5 (ING5) inhibits lung cancer aggressiveness and epithelial–mesenchymal transition (EMT). However, whether ING5 regulates lung cancer metabolism reprogramming remains unknown. Here, by quantitative proteomics, we showed that ING5 differentially regulates protein phosphorylation and identified a new site (Y163) of the key glycolytic enzyme PDK1 whose phosphorylation was upregulated 13.847-fold. By clinical study, decreased p-PDK1Y163 was observed in lung cancer tissues and correlated with poor survival. p-PDK1Y163 represents the negative regulatory mechanism of PDK1 by causing PDHA1 dephosphorylation and activation, leading to switching from glycolysis to oxidative phosphorylation, with increasing oxygen consumption and decreasing lactate production. These effects could be impaired by PDK1Y163F mutation, which also impaired the inhibitory effects of ING5 on cancer cell EMT and invasiveness. Mouse xenograft models confirmed the indispensable role of p-PDK1Y163 in ING5-inhibited tumor growth and metastasis. By siRNA screening, ING5-upregulated TIE1 was identified as the upstream tyrosine protein kinase targeting PDK1Y163. TIE1 knockdown induced the dephosphorylation of PDK1Y163 and increased the migration and invasion of lung cancer cells. Collectively, ING5 overexpression—upregulated TIE1 phosphorylates PDK1Y163, which is critical for the inhibition of aerobic glycolysis and invasiveness of lung cancer cells.
Twisted light, which carries orbital angular momentum, is driving modern metrology by altering paradigms on what is measurable, and allowing probing and sensing with ultra-high precision and accuracy. Researchers from China and South Africa share their expert insights on the future trajectory of this dynamic field.
The integration of machine learning and logical reasoning has long been considered a holy grail problem in artificial intelligence. ABductive Learning (ABL) is a paradigm that integrates machine learning and logical reasoning in a unified framework.
A research has the potential to advance sustainable energy technologies and reduce the environmental impact of electronic devices.
This review has examined recent advancements in hydrogel-based soft bioelectronics for personalized healthcare, focusing on three key challenges: achieving wide-range modulus coverage, balancing multiple functional properties and achieving effective organ fixation. We explored strategies for tuning hydrogel mechanical properties to match diverse tissues, from soft brain to stiff tendons, through innovative network designs. Methods for imparting conductivity to hydrogels, including ionic conductivity, conductive fillers, and conductive polymers, were analyzed for their unique advantages in bioelectronic applications. We highlighted approaches for decoupling mechanical and electrical properties in hydrogels, such as network design strategies incorporating sliding-ring structures to address the brittleness of conductive polymers, and the novel concept of all-hydrogel devices to fundamentally decouple mechanical and electrical performances. These innovations provide potential solutions to the traditional trade-offs between mechanical robustness and electrical conductivity. Beyond electrical interfacing, we discussed hydrogels' potential in acoustic and optical coupling, expanding their functionality in bioelectronics. The review introduced hydrogel self-morphing as an alternative to adhesion-based methods for targeted organ fixation, offering improved conformability and reduced tissue damage. Finally, we categorized and analyzed applications of hydrogel-based bioelectronics in wearable and implantable devices, demonstrating their versatility in personalized healthcare, from epidermal sensing and therapy to neural interfaces and bioadhesives.
This review has examined recent advancements in hydrogel-based soft bioelectronics for personalized healthcare, focusing on three key challenges: achieving wide-range modulus coverage, balancing multiple functional properties and achieving effective organ fixation. We explored strategies for tuning hydrogel mechanical properties to match diverse tissues, from soft brain to stiff tendons, through innovative network designs. Methods for imparting conductivity to hydrogels, including ionic conductivity, conductive fillers, and conductive polymers, were analyzed for their unique advantages in bioelectronic applications. We highlighted approaches for decoupling mechanical and electrical properties in hydrogels, such as network design strategies incorporating sliding-ring structures to address the brittleness of conductive polymers, and the novel concept of all-hydrogel devices to fundamentally decouple mechanical and electrical performances. These innovations provide potential solutions to the traditional trade-offs between mechanical robustness and electrical conductivity. Beyond electrical interfacing, we discussed hydrogels' potential in acoustic and optical coupling, expanding their functionality in bioelectronics. The review introduced hydrogel self-morphing as an alternative to adhesion-based methods for targeted organ fixation, offering improved conformability and reduced tissue damage. Finally, we categorized and analyzed applications of hydrogel-based bioelectronics in wearable and implantable devices, demonstrating their versatility in personalized healthcare, from epidermal sensing and therapy to neural interfaces and bioadhesives.