NPJ acoustics最新文献_第2页

Heterogeneous tumor blood oxygenation dynamics during phototherapy deciphered with real-time label-free photoacoustic imaging. 异质肿瘤血氧动力学在光疗期间破译实时无标签光声成像。

NPJ acoustics Pub Date : 2025-01-01 Epub Date: 2025-06-04 DOI: 10.1038/s44384-025-00012-x

Andrew Langley, Allison Sweeney, Ronak T Shethia, Brooke Bednarke, Faizah Wulandana, Marvin Xavierselvan, Srivalleesha Mallidi

{"title":"Heterogeneous tumor blood oxygenation dynamics during phototherapy deciphered with real-time label-free photoacoustic imaging.","authors":"Andrew Langley, Allison Sweeney, Ronak T Shethia, Brooke Bednarke, Faizah Wulandana, Marvin Xavierselvan, Srivalleesha Mallidi","doi":"10.1038/s44384-025-00012-x","DOIUrl":"10.1038/s44384-025-00012-x","url":null,"abstract":"Understanding the heterogeneity of tumor vascular function and oxygenation is key in individualizing treatments, especially with therapies that are ineffective in hypoxic microenvironments. Our previous work has demonstrated that ultrasound-guided photoacoustic imaging (US-PAI)-based blood oxygen saturation (StO2) measurements can be used as a surrogate marker for predicting the regionalized efficacy of photodynamic therapy (PDT). However, monitoring of StO2 during therapy could provide additional insights, specifically informing \"on the spot\" dosing decisions. In this work, we demonstrate the heterogeneous oxygen consumption during PDT by integrating light delivery fibers with the US-PAI transducer and tested the setup on murine tumor models with vascular-targeting benzoporphyrin derivative (BPD) PDT. Besides mapping dose-dependent oxygen utilization in real time, we also show that areas of reoxygenation post-PDT retain vascular function, confirmed with immunohistochemistry. Our results demonstrate the high potential of US-PAI in heterogenous tumoral oxygenation mapping for online dosimetry of cancer therapies such as PDT.","PeriodicalId":520425,"journal":{"name":"NPJ acoustics","volume":"1 1","pages":"9"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12137135/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144251852","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Human perception and response to sound from unmanned aircraft systems within ambient acoustic environments. 在环境声环境中，人类对无人驾驶飞机系统声音的感知和反应。

NPJ acoustics Pub Date : 2025-01-01 Epub Date: 2025-02-12 DOI: 10.1038/s44384-024-00001-6

Michael J B Lotinga, Marc C Green, Antonio J Torija

{"title":"Human perception and response to sound from unmanned aircraft systems within ambient acoustic environments.","authors":"Michael J B Lotinga, Marc C Green, Antonio J Torija","doi":"10.1038/s44384-024-00001-6","DOIUrl":"10.1038/s44384-024-00001-6","url":null,"abstract":"Potential opportunities for unmanned aircraft systems (UAS) to offer societal benefits are accompanied by noise impact risks. Accordingly, it is important to develop greater understanding of perception and response to UAS sound. A laboratory listening experiment was undertaken to address this aim by investigating psychoacoustics of UAS sound exposure. The experiment incorporated contextual auditory and soundscape factors by embedding spatially-rendered UAS sounds within urban acoustic environments. The UAS covered varying aircraft designs, operating modes and numbers of flights. The experiment was focussed on determining noticeability and noise annoyance. The results indicate that annoyance responses were influenced by UAS type, operational mode, sound characteristics, quantities of flights, and the ambient acoustic environments in which UAS events occurred. Annoyance also appeared to have associations with personal attitude towards advanced air mobility technology, and with classification of residence area. Noticeability appeared to be influenced by UAS type, operating mode, loudness and ambient environment.","PeriodicalId":520425,"journal":{"name":"NPJ acoustics","volume":"1 1","pages":"2"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11841372/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143470447","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluating the accuracy of acoustic holograms for precise spatial targeting within the brain. 评估声学全息图在大脑内精确空间定位的准确性。

NPJ acoustics Pub Date : 2025-01-01 Epub Date: 2025-10-21 DOI: 10.1038/s44384-025-00031-8

Rachel Burstow, Antonios N Pouliopoulos

引用次数: 0

Implicit neural representation for scalable 3D reconstruction from sparse ultrasound images. 稀疏超声图像可扩展三维重建的隐式神经网络表示。

NPJ acoustics Pub Date : 2025-01-01 Epub Date: 2025-08-08 DOI: 10.1038/s44384-025-00018-5

Tal Grutman, Mike Bismuth, Bar Glickstein, Tali Ilovitsh

引用次数: 0

Sierpiński carpet-inspired hierarchical patterning of porous materials for sound absorption. Sierpiński以地毯为灵感的多孔材料分层图案，用于吸声。

NPJ acoustics Pub Date : 2025-01-01 Epub Date: 2025-11-03 DOI: 10.1038/s44384-025-00023-8

S Kuznetsova, F Allein, V F Dal Poggetto, F-X Bécot, M Miniaci

{"title":"Sierpiński carpet-inspired hierarchical patterning of porous materials for sound absorption.","authors":"S Kuznetsova, F Allein, V F Dal Poggetto, F-X Bécot, M Miniaci","doi":"10.1038/s44384-025-00023-8","DOIUrl":"10.1038/s44384-025-00023-8","url":null,"abstract":"Efficient sound absorption at low and mid frequencies is essential for mitigating anthropogenic noise but remains a scientific and engineering challenge. While porous materials are effective at medium and high frequencies, they typically require considerable thickness to absorb low-frequency sound. Inspired by the Sierpiński carpet, we propose a hierarchical pattern of through-thickness holes in porous materials to enhance low- and mid-frequency absorption. Numerical simulations and impedance tube measurements demonstrate significant performance gains (up to a 46% of improvement in absorption at 500 Hz using 10% less material for a thickness of 80 mm). This enhancement is attributed to the presence of small-scale geometric features that spatially localize the acoustic pressure field, increasing energy dissipation within the porous medium. This hierarchical approach holds promise for developing lightweight, high-performance panels for sound insulation applications, particularly where improved low- and mid-frequency absorption is required without increasing material bulk.","PeriodicalId":520425,"journal":{"name":"NPJ acoustics","volume":"1 1","pages":"25"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12583189/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145454559","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Active control of electroacoustic resonators in the audible regime: control strategies and airborne applications. 电声谐振器在可听系统中的主动控制：控制策略和机载应用。

NPJ acoustics Pub Date : 2025-01-01 Epub Date: 2025-04-07 DOI: 10.1038/s44384-025-00006-9

Matthieu Malléjac, Maxime Volery, Hervé Lissek, Romain Fleury

引用次数: 0

Sonobiopsy for sensitive and spatially targeted molecular diagnosis through integrating ultrasound with liquid biopsy. 超声活检通过超声与液体活检相结合，实现敏感和空间靶向的分子诊断。

NPJ acoustics Pub Date : 2025-01-01 Epub Date: 2025-07-03 DOI: 10.1038/s44384-025-00014-9

Jinyun Yuan, Hong Chen

引用次数: 0