The phenolate anion was developed as a new photocatalyst with strong reduction potentials (−3.16 V <italic>vs.</italic> SCE) to of aryl halides radicals through single electron transfer.

Magnetic resonance imaging (MRI) and photoacoustic tomography (PAT) offer two distinct image contrasts. To integrate these modalities, we present a comprehensive hardware-software solution for the successive acquisition co-registration of PAT MRI images in vivo animal studies. Based on commercial scanners, our includes 3D-printed dual-modality bed, 3-D spatial algorithm with markers, robust modality switching protocol Using proposed solution, successfully demonstrated co-registered...

The spatial resolution of photoacoustic tomography (PAT) can be characterized by the point spread function (PSF) imaging system. Due to tomographic detection geometry, PAT image degradation model could generally described using spatially variant PSFs. Deconvolution with these PSFs restore and recover object details. Previous restoration algorithms assume that degraded images restored either a single uniform PSF, or some blind estimation In this work, we propose method improve quality based...

A photochemical activation of inert alkyl chlorides catalyzed by phenolate anions was developed for C–O bond formation, dehalogenation, and cyclization under mild conditions.

As an emerging molecular imaging modality, Photoacoustic Tomography (PAT) is capable of mapping tissue physiological metabolism and exogenous contrast agent information with high specificity. Due to its ultrasonic detection mechanism, the precise localization targeted lesions has long been a challenge for PAT imaging. The poor soft-tissue image makes this process difficult inaccurate. To meet challenge, in study, we first make use rich clear structural brought about by another advanced...

The reduction of carboxylic esters to aldehydes and alcohols is a fundamental functional group transformation in chemistry. However, the inertness carbonyl instability ketyl radical anion intermediate impede via photochemical strategy. Herein, we described aliphatic with synergistic dual photocatalysis phenolate‐catalyzed single electron transfer process thiol‐catalyzed hydrogen atom process. competitive back was effectively inhibited by protonation ketyl‐type anion. This protocol enabled...

The reduction of carboxylic esters to aldehydes and alcohols is a fundamental functional group transformation in chemistry. However, the inertness carbonyl instability ketyl radical anion intermediate impede via photochemical strategy. Herein, we described aliphatic with synergistic dual photocatalysis phenolate‐catalyzed single electron transfer process thiol‐catalyzed hydrogen atom process. competitive back was effectively inhibited by protonation ketyl‐type anion. This protocol enabled...

Multispectral photoacoustic tomography (PAT) is capable of resolving tissue chromophore distribution based on spectral un-mixing. It works by identifying the absorption spectrum variations from a sequence images acquired at multiple illumination wavelengths. Due to multispectral acquisition, this inevitably creates large dataset. To cut down data volume, sparse sampling methods that reduce number detectors have been developed. However, image reconstruction PAT challenging because...

Optoacoustic tomography (OAT) is an emerging imaging modality with ultrasonic depth and optical contrast. The reconstruction of optoacoustic image to recover the initial acoustic pressure distribution object from a set ultrasound signals. model-based ill-conditioned inverse problem affected by factors such as limited detection angle, imperfect model, noise. Accounting for this, appropriate penalties should be incorporated into process improve quality. In this paper, we present new...

One of the advantages photoacoustic imaging (PAI) is that its image contrast may come from exogenous agents.Such advantage leads to development a great number probes.However, biosafety most these agents has not yet been confirmed, thus hindering their clinical translation.In this work, we report on utilization clinically commonly used nutritional medicine, Intralipid, as new agent for imaging.Intralipid consists soybean oil, lecithin and glycerin long adapted in practices, mainly parenteral...

TPTHM NPs are candidates for PAI/PTT agents due to their NIR absorption, good biocompatibility, high photostability and photothermal conversion efficiency (38%).

Early diagnosis and management of hepatocellular carcinoma (HCC) is important for improving the 5-year survival rate. Multimodal imaging great significance obtaining complementary information, efficacy tumor detection, monitoring HCC recurrence. The rational development targeted nanoprobes with excellent performance accurate image-guided photothermal therapy (PTT). In present study, we synthesized a hybrid nanoprobe containing epithelial cell adhesion molecule-functionalized Fe3O4@Au...

Automatic delineation and segmentation of airway structures from endoscopic optical coherence tomography (OCT) images improve image analysis efficiency thus has been particular interest.Conventional two-dimensional automatic methods, such as the dynamic programming approach, ensures edge-continuity in xz-direction (intra-B-scan), but fails to preserve surface-continuity when concerning y-direction (inter-B-scan).To solve this, we present a novel three-dimensional (3D) strategy.Our scheme...

Abstract Magnetic resonance imaging (MRI) and photoacoustic tomography (PAT) are two advanced modalities that offer distinct image contrasts: MRI has a multi-parameter contrast mechanism provides excellent anatomical soft tissue contrast, whereas PAT is capable of mapping physiological metabolism exogenous agents with optical specificity. Attempts have been made to integrate these modalities, but rigid reliable registration the images for in vivo still challenging. In this paper, we present...

This article describes the basic principles of wavelet analysis technology for GPS deformation signal processing. According to property function, combined example that contain a small amount gross errors, this studies display law characteristics errors in different scales after transform and problem how we determine its location. paper analyzes influences regularity number decomposed layers when want identify dynamic monitoring data. research has provided basis selecting proper function errors.

This article has been retracted by the publisher.

This article has been retracted by the publisher.

Surface deformation of goaf is effected by a series geological and mining conditions. In order to study the process dynamic deformation, based on EMD phase space reconstruction technologies, data surface monitored, this paper puts forward laws analysis method time-varying: First, technology was applied extract time-variable deformations surface, then planes are constructed using technique for studying evolution deformation. The test shows that variation can be clearly shown.

In this paper, the structure of multi-scale decomposition and reconstruction empirical mode (EMD) theory is defined. Through combination Kalman EMD theory, a new Kalman-EMD dynamic deformation data de-noising model proposed. The presented to reduce noise series. Then, simulated real data(i.e.,GPS data)are used test method separately. following conclusions are drawn from these tests: can better mitigate random errors which hide in periodic signal; After significantly mitigating influence...