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Issue Info: J of Biomedical Photonics & Eng 5(1) Issue Info: J of Biomedical Photonics & engineering 5(1)
Q3 Physics and Astronomy Pub Date : 2019-03-31 DOI: 10.18287/jbpe19.05.010001
O. Myakinin
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引用次数: 0
Cover: Special Issue. Years in Optoacoustics: 70-th Anniversary of Prof. Vladimir P. Zharov 封面:特刊。光声学的年代:Vladimir P. Zharov教授70周年
Q3 Physics and Astronomy Pub Date : 2019-03-31 DOI: 10.18287/jbpe19.05.010000
O. Myakinin
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引用次数: 0
Application of Yb,Er:Glass laser radiation for active drug delivery at the treatment of onychomycosis Yb,Er:Glass激光给药在治疗甲癣中的应用
Q3 Physics and Astronomy Pub Date : 2019-03-30 DOI: 10.18287/JBPE19.05.010305
A. Belikov, A. D. Tavalinskaya, S. Smirnov, A. N. Sergeev
The paper discusses the active delivery of a drug (methylene blue solution) through the Er:YLF-laser-perforated nail plate using pulsed radiation of microsecond Yb,Er:Glass laser. Different methods of laser impact on liquid drug are considered: by focused and diverging laser beam. It was established that both discussed methods can provide sufficient dose of the drug for the treatment of onychomycosis.
本文讨论了利用微秒Yb,Er:Glass激光脉冲辐射,通过Er: ylf激光穿孔甲板主动递送药物(亚甲蓝溶液)的方法。研究了激光对液体药物的不同影响方法:聚焦和发散激光束。结果表明,两种方法均能提供足够剂量的治疗甲真菌病的药物。
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引用次数: 5
Optoacoustic gas-analysis for diagnostics of biosystems 用于生物系统诊断的光声气体分析
Q3 Physics and Astronomy Pub Date : 2019-03-29 DOI: 10.18287/JBPE19.05.010304
B. Ageev, O. Nikiforova, Y. Ponomarev, V. Sapozhnikova
A possibility of detecting biogenic gases by the laser optoacoustic gas-analysis method is shown. The construction and specifications of instruments, developed for this purpose, are described. Examples of the analysis of gas samples of various biological objects, like air, expired by patients, suffered from different illnesses, and residual gases in the wood of year rings of conifers are given together with recommendations on applying the received information.
提出了用激光光声气体分析方法检测生物气体的可能性。描述了为此目的而开发的仪器的结构和规格。举例分析了各种生物物体的气体样本,如病人呼出的空气、患不同疾病的空气和针叶树年轮中的残余气体,并提出了应用所收到信息的建议。
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引用次数: 1
Laser photoacoustic spectroscopy applications in breathomics 激光光声光谱在呼吸测试中的应用
Q3 Physics and Astronomy Pub Date : 2019-03-28 DOI: 10.18287/JBPE19.05.010303
Y. Kistenev, A. Borisov, V. Nikolaev, D. Vrazhnov, D. А. Kuzmin
The breathomics approach to express-diagnosis of bronchopulmonary diseases based on spectral analysis of volatile organic compounds in a patient’s exhaled air is discussed. The basic demands and possible technical solutions to laser photoacoustic spectroscopy equipment in a framework of breathomics are presented. An example of differential diagnostics of the set of bronchopulmonary diseases, including lung cancer (LC) patients (N = 9); patients with chronic obstructive pulmonary disease (COPD) (N = 12); patients with pneumonia (N = 11) and a control group of healthy volunteers using breath air analysis by laser photoacoustic spectroscopy and machine learning is presented.
本文讨论了基于患者呼出空气中挥发性有机化合物光谱分析的呼吸组学方法对支气管肺疾病的表达诊断。提出了呼吸组学框架下激光光声光谱设备的基本要求和可能的技术解决方案。包括肺癌(LC)患者在内的一系列支气管肺疾病的鉴别诊断示例(N = 9);慢性阻塞性肺疾病(COPD)患者(N = 12);采用激光光声光谱和机器学习技术对肺炎患者(N = 11)和健康志愿者的呼吸空气进行分析。
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引用次数: 8
Differentiation of basal cell carcinoma and healthy skin using multispectral modulation autofluorescence imaging: A pilot study 用多光谱调制自体荧光成像鉴别基底细胞癌和健康皮肤:一项初步研究
Q3 Physics and Astronomy Pub Date : 2019-03-27 DOI: 10.18287/JBPE19.05.010302
N. Chernomyrdin, Anastasiya D. Lesnichaya, E. V. Yakovlev, K. Kudrin, O. Cherkasova, E. N. Rimskaya, V. Kurlov, V. Karasik, I. Reshetov, V. Tuchin, K. Zaytsev
An approach for differentiating basal cell carcinoma (BCC) and healthy skin by combining a multispectral modulation autofluorescence imaging with the linear discriminant analysis has been proposed. The experimental setup, which employs a 365-nm narrowband excitation, 4 replaceable bandpass filters and a digital camera, has been assembled and applied to study freshly excised samples of BCC. In the experimental setup, modulation of the UV-excitation and demodulation of the visible light images allow for both increasing a signal-to-noise ratio and suppressing a non-fluorescence background in the autofluorescence images of tissues. The observed results demonstrate an ability for distinguishing both ordinary and keratinized BCC from healthy skin justifying the perspectives of the multispectral modulation autofluorescence imaging use for non-invasive and intraoperative diagnosis of BCC and other low-pigmented malignancies of the skin.
提出了一种将多光谱调制自体荧光成像与线性判别分析相结合的方法来鉴别基底细胞癌(BCC)和健康皮肤。实验装置采用365nm窄带激发,4个可更换的带通滤波器和一个数码相机,已组装并应用于研究新鲜切除的BCC样品。在实验设置中,紫外激发的调制和可见光图像的解调允许增加信噪比和抑制非荧光背景在组织的自体荧光图像。观察到的结果证明了从健康皮肤中区分普通和角化BCC的能力,证明了多光谱调制自身荧光成像用于无创和术中诊断BCC和其他低色素皮肤恶性肿瘤的观点。
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引用次数: 3
Miniature optical fiber sensors using surface enhanced Raman spectroscopy (SERS) for remote biochemical sensing 利用表面增强拉曼光谱(SERS)进行生物化学遥感的微型光纤传感器
Q3 Physics and Astronomy Pub Date : 2019-02-09 DOI: 10.18287/JBPE19.05.010301
A. Pandya, J. Kumaradas, A. Douplik
In this study, we present facile fabrication of a miniaturized remote sensing SERS platform using highly tunable Nano-Sphere Lithography (NSL) technique. Using 200 μm diameter optical fibers with high numerical aperture (0.5NA), the SERS enhancement of remote sensing was found to be 98% of direct sensing configuration. Standard silica optical fibers were used for remote sensing using SERS without additional need of optical filtering to mitigate fluorescence and Raman background of these fibers which allows fabrication of miniaturized remote sensing platforms that can be used for remote biochemical sensing.
在这项研究中,我们提出了一个使用高可调纳米球光刻(NSL)技术的小型化遥感SERS平台的简单制造。采用直径200 μm的高数值孔径光纤(0.5NA),遥感的SERS增强是直接遥感配置的98%。标准二氧化硅光纤用于使用SERS进行遥感,而不需要额外的光学滤波来减轻这些光纤的荧光和拉曼背景,从而允许制造可用于远程生化传感的小型化遥感平台。
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引用次数: 2
Historical review of early researches on mitogenetic radiation: from discovery to cancer diagnostics 有丝分裂放射早期研究的历史回顾:从发现到癌症诊断
Q3 Physics and Astronomy Pub Date : 2018-12-31 DOI: 10.18287/jbpe18.04.040201
E. Naumova, A. Naumova, D. Isaev, I. Volodyaev
The review is devoted to the experimental studies of mitogenetic radiation (weak UV-chemiluminescence of biological objects) conducted between 1923 and 1948 years. In this period UV-radiation of various biological objects (so called inductors) and its influence on mitotic rate of other biological objects (detectors) were investigated very actively. Very promising results were obtained including the finding of the peptide tumor marker in blood, which was called cancer quencher due to its ability to quench UV-chemiluminescence of blood. Later these researches were interrupted and almost abandoned. The relevance of the scientific problems addressed in these works to this day is stated, the key experiments and the most valuable results obtained between 1923 and 1948 are described in details and subsequent researches are briefly traced up to the present. The prospects of future development are discussed.
本文综述了1923年至1948年间对有丝分裂辐射(生物物体的弱紫外化学发光)的实验研究。在这一时期,各种生物物体(所谓的诱导剂)的紫外线辐射及其对其他生物物体(探测器)有丝分裂率的影响进行了非常积极的研究。获得了非常有希望的结果,包括在血液中发现了肿瘤标记肽,由于其能够猝灭血液中的紫外线化学发光而被称为癌症猝灭剂。后来,这些研究中断了,几乎被放弃了。本文阐述了这些著作中所讨论的科学问题与今天的相关性,详细描述了1923年至1948年间获得的关键实验和最有价值的结果,并简要地追溯了此后的研究直至现在。对未来的发展进行了展望。
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引用次数: 1
In vivo hyperspectral analysis of skin hemoglobin and melanin content for neoplasia detection 体内高光谱分析皮肤血红蛋白和黑色素含量用于肿瘤检测
Q3 Physics and Astronomy Pub Date : 2018-12-31 DOI: 10.18287/JBPE18.04.040301
I. Bratchenko, O. Myakinin, V. P. Sherendak, P. Volkhin, Y. Khristoforova, L. Bratchenko, D. Artemyev, A. Moryatov, O. Polschikova, A. Machikhin, V. Pozhar, S. Kozlov, V. Zakharov
We present results of main skin chromophores (melanin and hemoglobin) optical analysis. Analysis of 91 in vivo skin tissues (50 benign and 41 malignant) was performed in visible spectral region with hyperspectral imaging technique. To assess the malignancy of skin tissues we proposed two methods for calculating the integral index of tissue optical density and performed a comparison of their effectiveness and effectiveness of physician survey. As the main diagnostic feature, we propose to use data of integral optical index dispersion from the studied tissue and healthy tissue area. The results of skin tissues classification with discriminant analysis are presented. The possibility of the proposed approaches application in the clinical practice is shown.
我们介绍了主要皮肤发色团(黑色素和血红蛋白)的光学分析结果。采用高光谱成像技术对91例体内皮肤组织(良性50例,恶性41例)进行可见光谱分析。为了评估皮肤组织的恶性程度,我们提出了两种计算组织光密度积分指数的方法,并对其有效性和医师调查的有效性进行了比较。作为主要的诊断特征,我们建议使用研究组织和健康组织区域的积分光学指数色散数据。给出了用判别分析进行皮肤组织分类的结果。提出的方法在临床实践中应用的可能性。
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引用次数: 5
Interaction of erythrocytes in the process of pair aggregation in blood samples from patients with arterial hypertension and healthy donors: measurements with laser tweezers 动脉高压患者和健康献血者血液样本中红细胞对聚集过程中的相互作用:激光镊子测量
Q3 Physics and Astronomy Pub Date : 2018-09-30 DOI: 10.18287/JBPE18.04.030303
P. Ermolinskiy, A. Lugovtsov, A. I. Maslyanitsina, A. Semenov, L. Dyachuk, A. Priezzhev
Two-channel laser tweezers are used to measure the interaction kinetics of two erythrocytes at the initial stage of aggregation, i.e., the formation of a pair aggregate in vitro. The study of erythrocytes interaction is important both for understanding the fundamental aggregation mechanisms and for evaluating the differences in kinetics and dynamics of aggregation, depending on the presence or absence of diseases that disturb the blood flow parameters and, therefore, the oxygen supply to tissues. We analyse the kinetics and dynamics of pair aggregation of erythrocytes in blood samples from more than 60 patients with arterial hypertension, as well as from a group of healthy donors. The results show that both kinetics and dynamics of erythrocyte aggregation are changed in the presence of the considered pathology.
双通道激光镊子用于测量两个红细胞在聚集初始阶段的相互作用动力学,即在体外形成成对聚集。红细胞相互作用的研究对于理解基本的聚集机制和评估聚集动力学和动力学的差异都很重要,这取决于是否存在干扰血流参数的疾病,从而干扰组织的氧气供应。我们分析了60多名动脉高压患者和一组健康献血者血液样本中红细胞成对聚集的动力学和动力学。结果表明,在考虑病理的情况下,红细胞聚集的动力学和动力学都发生了变化。
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引用次数: 9
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Journal of Biomedical Photonics and Engineering
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