Results 281 to 290 of about 212,227 (315)

Simultaneous Monitoring of Tyrosinase and ATP in Thick Brain Tissues Using a Single Two‐Photon Fluorescent Probe

open access: yesAdvanced Science, EarlyView.
A single dual‐emission two‐photon fluorescent probe is designed for simultaneously tracking tyrosinase (TYR) and adenosine triphosphate (ATP). With the help of this probe, the intricate correlation and regulatory mechanism between TYR and ATP during oxidative stress is uncovered.
Hong Huang   +12 more
wiley   +1 more source

Verteporfin‐Mediated In Situ Nanovaccine Based on Local Conventional‐Dose Hypofractionated Radiotherapy Enhances Antitumor and Immunomodulatory Effect

open access: yesAdvanced Science, EarlyView.
Here gelatinase‐responsive methoxypolyethyleneglycol–PVGLIG–polycaprolactone (mPEG–PVGLIG–PCL) nanoparticles’ loading verteporfin (N@VP) is developed, enhancing radiotherapy via X‐ray‐triggered singlet oxygen generation. Combined with 2 Gy (gray, a radiation dose unit) irradiation, N@VP achieves antitumor efficacy comparable to 8 Gy, and also promotes ...
Zhifan Zhang   +16 more
wiley   +1 more source

Targeting Splenic Myeloid Cells with Nanobiologics to Prevent Postablative Pancreatic Cancer Recurrence via Inducing Antitumor Peripheral Trained Immunity

open access: yesAdvanced Science, EarlyView.
Using a preclinical pancreatic cancer model, we identified that tumor progression restructures splenic immunity via myeloid cell expansion. MDCa@RBC‐Alipo nanobiologics were engineered to epigenetically and metabolically reprogram splenic myeloid cells, alleviating post‐ablation immunosuppression.
Shengbo Wu   +12 more
wiley   +1 more source

Polarized Color Filters Using Colloidal Quantum Rod Nanocrystals for Advanced High‐Performance Displays

open access: yesAdvanced Science, EarlyView.
This groundbreaking research has advanced the utilization of quantum rods (QRs) for the emission of linearly polarized light, resulting in exceptional color saturation and enhanced display efficiency. The developed filter demonstrates a polarization degree of up to 0.67 and an impressive ambient contrast ratio (ACR) of 263:1, setting the stage for ...
Jianxin Song   +12 more
wiley   +1 more source

Ultrasound‐Assisted H2 Transmitter Enables Hydrogen‐Gene Therapy to Prevent Anesthesia/Surgery‐Induced Cognitive Impairment

open access: yesAdvanced Science, EarlyView.
Postoperative cognitive dysfunction (POCD) remains a challenge with no effective treatments. This study introduces a novel hydrogen‐gene therapy strategy, combining focused ultrasound and siRNA delivery via hydrogen emitters, to repair neuroinflammation in a precise and controlled manner.
Ruonan Zhan   +11 more
wiley   +1 more source

Simultaneous Harvesting of Bipolar Plasmonic Hot Carriers for Boosting Photoconductivity in Ag Nanoprism‐Coupled Lateral Si p–n Junction

open access: yesAdvanced Science, EarlyView.
This study demonstrates a plasmonic hot carrier device capable of extracting both types of hot carriers simultaneously using a lateral Si p–n junction diode coupled to Ag nanoprisms. The experimental and numerical results jointly reveal precise control of the generation and injection of plasmonic hot carriers, stemming from differing injection ...
Yujin Park   +7 more
wiley   +1 more source

A Hollow Shell‐Lattice Soft Robot in Flexible Pipelines with Flowing Fluids

open access: yesAdvanced Science, EarlyView.
This study proposes a novel shell‐lattice robot with hollow bodies, capable of crawling through pipes with flowing fluids of high velocities and viscosities and mixed with impurities. The robot also features capabilities of crawling with high payloads, in curved pipes, and unthethered crawling. These unique properties make this robot high promising for
Di Guo, Yiqiang Wang, Zhan Kang
wiley   +1 more source

Deep Learning‐Enhanced Hand‐Driven Microfluidic Chip for Multiplexed Nucleic Acid Detection Based on RPA/CRISPR

open access: yesAdvanced Science, EarlyView.
Efficient R‐CHIP HR‐HPV Screening System: The R‐CHIP system utilizes the RPA/CRISPR method, a hand‐driven centrifugal microfluidic device, a smartphone micro‐imaging system, and the ResNet‐18 deep‐learning algorithm to simplify the sample detection process, ensure accurate results, and reduce costs.
Tao Xu   +11 more
wiley   +1 more source

Tailoring Piezoelectric Nanogenerators and Microdevices for Cellular Excitation: Impact of Size and Morphology

open access: yesAdvanced Science, EarlyView.
Piezoelectric microdevices, composed of ZnO nanosheets acting as nanogenerators and grown on silicon microparticles, are designed and fabricated to deliver precise electrical cell stimulation. This study optimizes nanosheet growth and microparticle size to enhance electrical cell activation performance while minimizing cellular internalization.
Laura Lefaix   +4 more
wiley   +1 more source

Differential Privacy

2006
In 1977 Dalenius articulated a desideratum for statistical databases: nothing about an individual should be learnable from the database that cannot be learned without access to the database. We give a general impossibility result showing that a formalization of Dalenius' goal along the lines of semantic security cannot be achieved.
openaire   +2 more sources

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