Reflection-mode switchable subwavelength Bessel-beam and Gaussian-beam photoacoustic microscopy in vivo.

abstract：:This study presents numerical simulations of UVC light propagation through seven different filtered face respirators (FFR) to determine their suitability for Ultraviolet germicidal inactivation (UVGI). UV propagation was modeled using the FullMonte program for two external light illuminations. The optical properties o...

journal_title：Journal of biophotonics

authors： Lilge L,Manalac A,Weersink M,Schwiegelshohn F,Young-Schultz T,Abdalrhman AS,Wang C,Ngan A,Gu FX,Betz V,Hofmann R

更新日期：2020-12-01 00:00:00

abstract：:An experimental study of the influence of the conformational change suffered by molecular beacon (MB) probes-upon the biorecognition of nucleic acid target oligonucleotides over evanescent wave photonic sensors-is reported. To this end, high sensitivity photonic sensors based on silicon photonic bandgap (PBG) structur...

journal_title：Journal of biophotonics

authors： Ruiz-Tórtola Á,Prats-Quílez F,González-Lucas D,Bañuls MJ,Maquieira Á,Wheeler G,Dalmay T,Griol A,Hurtado J,Bohlmann H,Götzen R,García-Rupérez J

更新日期：2018-10-01 00:00:00

abstract：:A Monte Carlo simulation was adapted to specify a skin model with pigmented epidermis, dermis with low baseline blood content, and vessels of a vascular lesion with an average added blood volume fraction of 5%. In the study, the lesion vessel diameters were increased and the number of lesion vessels decreased, such th...

journal_title：Journal of biophotonics

authors： Jacques SL

更新日期：2010-01-01 00:00:00

abstract：:Bone-marrow (BM)-derived cells have been shown to be capable of aiding skin regeneration in vivo by differentiating into keratinocytes. However, the conditions under which this occurs are not fully understood. Characterizing innate mechanisms of skin regeneration by stem cells in vivo is important for the area of stem...

journal_title：Journal of biophotonics

authors： Graf BW,Bower AJ,Chaney EJ,Marjanovic M,Adie SG,De Lisio M,Valero MC,Boppart MD,Boppart SA

更新日期：2014-01-01 00:00:00

abstract：:Perfusion and oxygenation are critical parameters of muscle metabolism in health and disease. They have been both the target of many studies, in particular using near-infrared spectroscopy (NIRS). However, difficulties with quantifying NIRS signals have limited a wide dissemination of the method to the clinics. Our ai...

journal_title：Journal of biophotonics

authors： Karlas A,Kallmayer M,Fasoula NA,Liapis E,Bariotakis M,Krönke M,Anastasopoulou M,Reber J,Eckstein HH,Ntziachristos V

更新日期：2020-06-01 00:00:00

abstract：:Photobiomodulation (PBM) therapy has been noted to promote cell proliferation and growth in many different cell types shown both in vitro and in vivo. Currently, treatment regimens are used in the clinic for a variety of ailments, including wound healing. However, most protocols treat an anatomical site without consid...

journal_title：Journal of biophotonics

authors： Engel KW,Khan I,Arany PR

更新日期：2016-12-01 00:00:00

abstract：:In preclinical researches, bioluminescence tomography (BLT) has widely been used for tumor imaging and monitoring, imaged-guided tumor therapy, and so forth. For these biological applications, both tumor spatial location and morphology analysis are the leading problems needed to be taken into account. However, most ex...

journal_title：Journal of biophotonics

authors： Guo H,Gao L,Yu J,He X,Wang H,Zheng J,Yang X

更新日期：2020-04-01 00:00:00

abstract：:Whole slide imaging (WSI) has moved digital pathology closer to diagnostic practice in recent years. Due to the inherent tissue topography variability, accurate autofocusing remains a critical challenge for WSI and automated microscopy systems. The traditional focus map surveying method is limited in its ability to ac...

journal_title：Journal of biophotonics

authors： Bian Z,Guo C,Jiang S,Zhu J,Wang R,Song P,Zhang Z,Hoshino K,Zheng G

更新日期：2020-12-01 00:00:00

abstract：:5-aminolevulinic acid (ALA) and its methylated ester (MAL) are the most common topical agents used in photodynamic therapy (PDT) as precursors of the photosensitizer protoporphyrin IX (PpIX). The induction of newly PpIX depends on incubation time of each photosensitizer in the tissue and the presence of high intralesi...

journal_title：Journal of biophotonics

authors： Lima CA,Goulart VP,Bechara EJ,Correa L,Zezell DM

更新日期：2016-12-01 00:00:00

abstract：:Atherosclerosis is a process of thickening and stiffening of the arterial walls through the accumulation of lipids and fibrotic material, as a consequence of aging and unhealthy life style. However, not all arterial plaques lead to complications, which can lead to life-threatening events such as stroke and myocardial ...

journal_title：Journal of biophotonics

authors： Dugandžić V,Drikermann D,Ryabchykov O,Undisz A,Vilotijević I,Lorkowski S,Bocklitz TW,Matthäus C,Weber K,Cialla-May D,Popp J

更新日期：2018-12-01 00:00:00

abstract：:Near-infrared light allows measuring tissue oxygenation. These measurements relay on oxygenation-dependent absorption spectral changes. However, the tissue scattering, which is also spectral dependent, introduces an intrinsic error. Most methods focus on the volume reflectance from a semi-infinite sample. We have prop...

journal_title：Journal of biophotonics

authors： Duadi H,Feder I,Fixler D

更新日期：2018-04-01 00:00:00

abstract：:Nanofluidics enables the imaging of stretched single molecules with potential applications for single molecule sequence mapping. Lab-on-a-chip devices for single cell trapping and lyzing, genomic DNA extraction from single cells, and optical mapping of genomic length DNA has been demonstrated separately. Yet the pursu...

journal_title：Journal of biophotonics

authors： Marie R,Kristensen A

更新日期：2012-08-01 00:00:00

abstract：:Methods of nonlinear optics provide a vast arsenal of tools for label-free brain imaging, offering a unique combination of chemical specificity, the ability to detect fine morphological features, and an unprecedentedly high, subdiffraction spatial resolution. While these techniques provide a rapidly growing platform f...

journal_title：Journal of biophotonics

authors： Lanin AA,Pochechuev MS,Chebotarev AS,Kelmanson IV,Belousov VV,Zheltikov AM

更新日期：2019-11-01 00:00:00

abstract：:Skin optical clearing has shown tremendous potential in improving various optical imaging performances, but there is some certain blindness in screening out high-efficiency in vivo optical clearing methods. In this work, three optical clearing agents: sucrose (Suc), fructose (Fruc) and PEG-400 (PEG), and two chemical ...

journal_title：Journal of biophotonics

authors： Shi R,Guo L,Zhang C,Feng W,Li P,Ding Z,Zhu D

更新日期：2017-06-01 00:00:00

abstract：:It is well known that, under exposure to bright light, eggs tend to hatch earlier than control, without any damage to the birds. This report aims to systematically show the effect and establishes a proposal for a possible application to accelerate chicken egg formation, which could be extrapolated or adapted as a grea...

journal_title：Journal of biophotonics

authors： Buzzá HH,Zangirolami AC,Kurachi C,Bagnato VS

更新日期：2018-02-01 00:00:00

abstract：:We present a noninvasive and noncontacting biosensor using Wavelength Modulated Differential Photothermal Radiometry (WM-DPTR) to monitor blood glucose concentration (BGC) through interstitial fluid (ISF) probing in human middle fingers. WM-DPTR works in the interference-free mid-infrared range with differential wavel...

journal_title：Journal of biophotonics

authors： Guo X,Zhang D,Shojaei-Asanjan K,Sivagurunathan K,Melnikov A,Song P,Mandelis A

更新日期：2019-07-01 00:00:00

abstract：:The ability to resolve multiple fluorescent emissions from different biological targets in video rate applications, such as endoscopy and intraoperative imaging, has traditionally been limited by the use of filter-based imaging systems. Hyperspectral imaging (HSI) facilitates the detection of both spatial and spectral...

journal_title：Journal of biophotonics

authors： Luthman AS,Dumitru S,Quiros-Gonzalez I,Joseph J,Bohndiek SE

更新日期：2017-06-01 00:00:00

abstract：:Stimulated Raman scattering (SRS) has been applied to unstained samples of articular cartilage enabling the investigation of living cells within fresh tissue. Hyperspectral SRS measurements over the CH vibrational region showed variations in protein and lipid content within the cells, pericellular matrix and interterr...

journal_title：Journal of biophotonics

authors： Mansfield J,Moger J,Green E,Moger C,Winlove CP

更新日期：2013-10-01 00:00:00

abstract：:Infrared spectra obtained from cell or tissue specimen have commonly been observed to involve a significant degree of scattering effects, often Mie scattering, which probably overshadows biochemically relevant spectral information by a nonlinear, nonadditive spectral component in Fourier transform infrared (FTIR) spec...

journal_title：Journal of biophotonics

authors： Raulf AP,Butke J,Menzen L,Küpper C,Großerueschkamp F,Gerwert K,Mosig A

更新日期：2020-12-08 00:00:00

abstract：:Ionizing radiation (IR) induces DNA damage and low-level laser therapy (LLLT) has been investigated to prevent or repair detrimental outcomes resulting from IR exposure. Few in vitro studies, however, explore the biological mechanisms underlying those LLLT benefits. Thus, in this work, fibroblasts and tumor cells are ...

journal_title：Journal of biophotonics

authors： Ramos Silva C,Cabral FV,de Camargo CF,Núñez SC,Mateus Yoshimura T,de Lima Luna AC,Maria DA,Ribeiro MS

更新日期：2016-12-01 00:00:00

abstract：:The aim of this study is to identify changes in scattering with optical coherence tomography (OCT) and relate these measurements with mitochondrial changes during the initiation of apoptosis. Human retinal pigment epithelial cells were cultured and apoptosis was induced using 10% alcohol. Using the attenuation coeffic...

journal_title：Journal of biophotonics

authors： de Bruin DM,Broekgaarden M,van Gemert MJ,Heger M,de la Rosette JJ,Van Leeuwen TG,Faber DJ

更新日期：2016-09-01 00:00:00

abstract：:Laser therapy, also known as Photobiomodulation (PBM) is indicated to reduce pain associated with different pathologies and applied using protocols that vary in wavelength, irradiance and fluence. Its mechanisms of action are still unclear and possibly able to directly impact on pain transmission, reducing nociceptor ...

journal_title：Journal of biophotonics

authors： Zupin L,Ottaviani G,Rupel K,Biasotto M,Zacchigna S,Crovella S,Celsi F

更新日期：2019-10-01 00:00:00

abstract：:The capabilities of cross-polarization optical coherence tomography (CP OCT) for early bladder-cancer detection are assessed in statistical study and compared with the traditional OCT. Unlike the traditional OCT that demonstrates images only in copolarization, CP OCT acquires images in cross-polarization and copolariz...

journal_title：Journal of biophotonics

authors： Gladkova N,Streltsova O,Zagaynova E,Kiseleva E,Gelikonov V,Gelikonov G,Karabut M,Yunusova K,Evdokimova O

更新日期：2011-08-01 00:00:00

abstract：:A wide variety of subcutaneous soft-tissue masses may be seen in clinical practice. Clinical examination based on palpation alone is often insufficient to identify the nature and exact origin of the mass, in which case imaging is necessary. We used handheld multispectral optoacoustic imaging technology (MSOT) in a pro...

journal_title：Journal of biophotonics

authors： Buehler A,Diot G,Volz T,Kohlmeyer J,Ntziachristos V

更新日期：2017-08-01 00:00:00

abstract：:Currently, optical coherence tomography (OCT), is not capable of obtaining molecular information often crucial for identification of disease. To enable molecular imaging with OCT, we have further developed a technique that harnesses transient changes in light absorption in the sample to garner molecular information. A...

journal_title：Journal of biophotonics

authors： Carrasco-Zevallos O,Shelton RL,Kim W,Pearson J,Applegate BE

更新日期：2015-01-01 00:00:00

abstract：:The content of dermal beta-carotene can be a good indicator showing the body health. Because, it is involved in production of vitamin A maintaining healthy skin and mucous membranes. Also, it reduces the risk of cardiovascular diseases and its antioxidant capacity prevents the formation of cancerous cells. In this wor...

journal_title：Journal of biophotonics

authors： Morovati A,Ansari MA,Tuchin VV

更新日期：2020-09-01 00:00:00

abstract：:Bacterial meningitis is a disease of pronounced clinical significance, especially in the developing world. Immediate treatment with antibiotics is essential, and no single test can provide a conclusive diagnosis. It is well established that elevated total protein in cerebrospinal fluid (CSF) is associated with bacteri...

journal_title：Journal of biophotonics

authors： Steelman Z,Meng Z,Traverso AJ,Yakovlev VV

更新日期：2015-05-01 00:00:00

abstract：:Highly emissive europium complexes with specific endoplasmic reticulum localization potential includes several advantages such as fast uptake, long resident lifetime, low dosage requirement, low cytotoxicity and highly emissive two-photon induced f-f emission imaging. ...

journal_title：Journal of biophotonics

authors： Law GL,Wong KL,Man CW,Tsao SW,Wong WT

更新日期：2009-12-01 00:00:00

abstract：:Drowsy driving contributes to ~20% of all traffic accidents worldwide. Onsite monitoring the mental condition of a driver and forewarning may be a preventive solution to reduce occurrence of drowsiness and potential accidents. Functional near-infrared spectroscopy (fNIRS) has been successfully utilized in hemodynamics...

journal_title：Journal of biophotonics

authors： Li T,Lin Y,Gao Y,Zhong F

更新日期：2018-12-01 00:00:00

abstract：:Acridine orange (AO) staining is used to diagnose DNA fragmentation status in sperm cells. Interferometric phase microscopy (IPM) is an optical imaging method based on digital holographic microscopy that provides quantitative morphological and refractive index imaging of cells in vitro without the need for staining. W...

journal_title：Journal of biophotonics

authors： Barnea I,Karako L,Mirsky SK,Levi M,Balberg M,Shaked NT

更新日期：2018-11-01 00:00:00