Nanoscale distinction of membrane patches--a TERS study of Halobacterium salinarum.

abstract：:Endoscopy has been widely used in biomedical imaging and integrated with various optical and acoustic imaging modalities. Photoacoustic imaging (PAI), one of the fastest growing biomedical imaging modalities, is a noninvasive and nonionizing method that owns rich optical contrast, deep acoustic penetration depth, mult...

journal_title：Journal of biophotonics

authors： Guo H,Li Y,Qi W,Xi L

更新日期：2020-12-01 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：: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：: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：:Diffuse reflectance spectroscopy is a rapidly growing technology in the biophotonics community where it has shown promise in its ability to classify different tissues. In the steady-state domain a wide spectrum of clinical applications is supported with this technology ranging from diagnostic to guided interventions. ...

journal_title：Journal of biophotonics

authors： Bydlon TM,Nachabé R,Ramanujam N,Sterenborg HJ,Hendriks BH

更新日期：2015-01-01 00:00:00

abstract：:A novel hybrid method which combines sub-wavelength-scale phase measurements and pixel-scale displacement tracking for robust strain mapping in compressional optical coherence elastography is proposed. Unlike majority of OCE methods it does not rely on initial reconstruction of displacements and does not suffer from t...

journal_title：Journal of biophotonics

authors： Zaitsev VY,Matveyev AL,Matveev LA,Gelikonov GV,Gubarkova EV,Gladkova ND,Vitkin A

更新日期：2016-05-01 00:00:00

abstract：:The investigation of lung dynamics on alveolar scale is crucial for the understanding and treatment of lung diseases, such as acute lung injury and ventilator induced lung injury, and to promote the development of protective ventilation strategies. One approach to this is the establishment of numerical simulations of ...

journal_title：Journal of biophotonics

authors： Kirsten L,Gaertner M,Schnabel C,Meissner S,Koch E

更新日期：2013-02-01 00:00:00

abstract：:Skin fibrosis is a chronic debilitating feature of several skin diseases that lead to characteristic increases in dermal fibroblast proliferation and collagen deposition through upregulation in components of the transforming growth factor beta (TGF-B)/SMAD pathway. In contrast to ultraviolet phototherapy, high-fluence...

journal_title：Journal of biophotonics

authors： Mamalis A,Koo E,Tepper C,Jagdeo J

更新日期：2019-05-01 00:00:00

abstract：:Low-level laser therapy (LLLT) is known to enhance mitochondrial electron transfer and ATP production; thus, this study asked whether LLLT could stimulate the oxidative burst in human neutrophils (PMN) and improve their ability to kill microorganisms. Blood from healthy human subjects was collected and PMN were isolat...

journal_title：Journal of biophotonics

authors： Cerdeira CD,Lima Brigagão MR,Carli ML,de Souza Ferreira C,de Oliveira Isac Moraes G,Hadad H,Costa Hanemann JA,Hamblin MR,Sperandio FF

更新日期：2016-12-01 00:00:00

abstract：:In this review we provide a description of the basic concepts and paradigms currently constituting the foundations of adult stem cell biology, and discuss the role that live imaging techniques have in the development of the field. We focus on live imaging of hematopoietic stem cells (HSCs) as the basic biology and cli...

journal_title：Journal of biophotonics

authors： Lo Celso C,Wu JW,Lin CP

更新日期：2009-11-01 00:00:00

abstract：:We investigate the optical wavelength dependence in quantitative photoacoustic (QPA) assessment of red blood cell (RBC) aggregation and oxygen saturation (sO2 ) during pulsatile blood flow. Experimentally, the pulsatile flow was imaged with a 700 to 900 nm laser using the VevoLAZR. Theoretically, the photoacoustic (PA...

journal_title：Journal of biophotonics

authors： Bok TH,Hysi E,Kolios MC

更新日期：2018-08-01 00:00:00

abstract：:The dynamic properties of subcellular organism are important biomarkers of the health. Imaging subcellular level dynamics provides effective solutions for evaluating cell metabolism and testing the responses of cells to pathogens and drugs in pharmaceutical engineering. In this paper, we demonstrate an innovative appr...

journal_title：Journal of biophotonics

authors： Wei W,Tang P,Xie Z,Li Y,Wang RK

更新日期：2019-10-01 00:00:00

abstract：:In photoacoustic tomography (PAT), a tunable laser typically illuminates the tissue at multiple wavelengths, and the received photoacoustic waves are used to form functional images of relative total haemoglobin (rHbT) and blood oxygenation saturation (%sO2 ). Due to measurement errors, the estimation of these paramete...

journal_title：Journal of biophotonics

authors： Amidi E,Yang G,Uddin KMS,Luo H,Middleton W,Powell M,Siegel C,Zhu Q

更新日期：2020-12-30 00:00:00

abstract：:Quantitative phase imaging (QPI) is an emerging modality, which enables the identification of abnormalities in tissue based on optical properties. QPI can be applied to any biological specimen due to its label-free imaging capability, but its use in stained tissue is unclear. Here, we study the variability of QPI with...

journal_title：Journal of biophotonics

authors： Ban S,Min E,Ahn Y,Popescu G,Jung W

更新日期：2018-08-01 00:00:00

abstract：:We present a novel silicon photonic biosensor using phase-shifted Bragg gratings in a slot waveguide. The optical field is concentrated inside the slot region, leading to efficient light-matter interaction. The Bragg gratings are formed with sidewall corrugations on the outside of the waveguide, and a phase shift is i...

journal_title：Journal of biophotonics

authors： Wang X,Flueckiger J,Schmidt S,Grist S,Fard ST,Kirk J,Doerfler M,Cheung KC,Ratner DM,Chrostowski L

更新日期：2013-10-01 00:00:00

abstract：:Cerebral malaria (CM) is a severe complication of Plasmodium falciparum infection associated with impaired cerebral blood flow. Visualization of the eye vasculature, which is embryologically derived from that of the brain, is used clinically to diagnose the syndrome. Here, we introduce camera-phone laser speckle imagi...

journal_title：Journal of biophotonics

authors： Remer I,Pierre-Destine LF,Tay D,Golightly LM,Bilenca A

更新日期：2019-01-01 00:00:00

abstract：:We describe a novel, minimally invasive laser technology for skin rejuvenation by creating isolated microscopic lesions within tissue below the epidermis using laser induced optical breakdown. Using an in-house built prototype device, tightly focused near-infrared laser pulses are used to create optical breakdown in t...

journal_title：Journal of biophotonics

authors： Habbema L,Verhagen R,Van Hal R,Liu Y,Varghese B

更新日期：2012-02-01 00:00:00

abstract：:The sun protection factor (SPF) values are currently determined using an invasive procedure, in which the volunteers are irradiated with ultraviolet (UV) light. Non-invasive approaches based on hybrid diffuse reflectance spectroscopy (HDRS) have shown a good correlation with conventional SPF testing. Here, we present ...

journal_title：Journal of biophotonics

authors： Throm CM,Wiora G,Reble C,Schleusener J,Schanzer S,Karrer H,Kolbe L,Khazaka G,Meinke MC,Lademann J

更新日期：2020-10-06 00:00:00

abstract：:DsRed is representative of the tetrameric reef coral fluorescent proteins that constitute particularly interesting coupled multichromophoric systems. Either a green emitting or a red emitting chromophore can form within each of the monomers of the protein tetramer. Within the tetramers the chromophores are thought to ...

journal_title：Journal of biophotonics

authors： Blum C,Meixner AJ,Subramaniam V

更新日期：2011-01-01 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：:Compared to conventional techniques, Laser surgery procedures provide a number of advantages, but may be associated with an increased risk of iatrogenic damage to important anatomical structures. The type of tissue ablated in the focus spot is unknown. Laser-Induced Breakdown-Spectroscopy (LIBS) has the potential to g...

journal_title：Journal of biophotonics

authors： Rohde M,Mehari F,Klämpfl F,Adler W,Neukam FW,Schmidt M,Stelzle F

更新日期：2017-10-01 00:00:00

abstract：:Laser treatment on a large size of prostate gland often encounters significant bleeding that can prolong the entire procedure and cause urinary complications. The current study investigates the feasibility of dual-wavelength (532 and 980 nm) application to achieve rapid hemostasis for 532-nm laser prostatectomy. Porci...

journal_title：Journal of biophotonics

authors： Hwang J,Kim H,Truong GV,Xuan J,Hasenberg T,Kang HW

更新日期：2018-04-01 00:00:00

abstract：:We present the design and construction of a prototype imaging probe capable of co-registered pulse-echo ultrasound and photoacoustic (optoacoustic) imaging in real time. The probe consists of 36 fibers of 200 micron core diameter each that are distributed around a commercial transvaginal ultrasound transducer, and hou...

journal_title：Journal of biophotonics

authors： Kumavor PD,Alqasemi U,Tavakoli B,Li H,Yang Y,Sun X,Warych E,Zhu Q

更新日期：2013-06-01 00:00:00

abstract：:Stimulated Raman scattering (SRS) microscopy is a label-free method generating images based on chemical contrast within samples, and has already shown its great potential for high-sensitivity and fast imaging of biological specimens. The capability of SRS to collect molecular vibrational signatures in bio-samples, cou...

journal_title：Journal of biophotonics

authors： Laptenok SP,Rajamanickam VP,Genchi L,Monfort T,Lee Y,Patel II,Bertoncini A,Liberale C

更新日期：2019-09-01 00:00:00

abstract：:FTIR microspectroscopy was applied for studying macromolecular changes in human serum samples from patients with healthy livers, and those diagnosed with liver cirrhosis or hepatocellular carcinoma (HCC). Our study demonstrated that the serum samples from HCC and cirrhotic patients could readily be discriminated from ...

journal_title：Journal of biophotonics

authors： Thumanu K,Sangrajrang S,Khuhaprema T,Kalalak A,Tanthanuch W,Pongpiachan S,Heraud P

更新日期：2014-04-01 00:00:00

abstract：:A new optical scattering contrast-agent based on polymer-nanoparticle encapsulated silver nanoplates (PESNs) is presented. Silver nanoplates were chosen due to the flexibility of tuning their plasmon frequencies. The polymer coating preserves their physical and optical properties and confers other advantages such as c...

journal_title：Journal of biophotonics

authors： Ray A,Kopelman R,Chon B,Briggman K,Hwang J

更新日期：2016-07-01 00:00:00

abstract：:Nanosecond pulsed laser irradiation can trigger a release of nucleic acids from gold nanoparticles, but the involved nanoeffects are not fully understood yet. Here we investigate the release of coumarin labeled siRNA from 15 to 30 nm gold particles after nanosecond pulsed laser irradiation. Temperatures in the particl...

journal_title：Journal of biophotonics

authors： Rudnitzki F,Feineis S,Rahmanzadeh R,Endl E,Lutz J,Groll J,Hüttmann G

更新日期：2018-09-01 00:00:00

abstract：:Atherosclerosis (AS), the leading cause of morbidity and mortality in cardiovascular disease, needs an early detection for treatment and prevention of fatal events. Here, for the first time, we applied gold nanorods (GNRs)-assisted diffusion reflection (DR), a noninvasive technique for in vivo detection of AS in a hig...

journal_title：Journal of biophotonics

authors： Chakraborty R,Ankri R,Leshem-Lev D,Hochhauser E,Kornowski R,Motiei M,Lev EI,Fixler D

更新日期：2019-01-01 00:00:00

abstract：:Hyperspectral imaging is a promising technique for resection margin assessment during cancer surgery. Thereby, only a specific amount of the tissue below the resection surface, the clinically defined margin width, should be assessed. Since the imaging depth of hyperspectral imaging varies with wavelength and tissue co...

journal_title：Journal of biophotonics

authors： Kho E,de Boer LL,Post AL,Van de Vijver KK,Jóźwiak K,Sterenborg HJCM,Ruers TJM

更新日期：2019-11-01 00:00:00

abstract：:Intraoperative detection of residual malignant cells at tumor margins following excision of primary tumors could help improving surgery and thus patients' outcome. The feasibility of the tumor antigens epidermal growth factor receptor (EGF-R) and epithelial cell adhesion molecule (EpCAM) for antibody-dependent confoca...

journal_title：Journal of biophotonics

authors： Englhard AS,Palaras A,Volgger V,Stepp H,Mack B,Libl D,Gires O,Betz CS

更新日期：2017-10-01 00:00:00