4open最新文献 - Book学术

A review on Quantum Dots (QDs) and their biomedical applications 量子点及其生物医学应用研究进展

4open Pub Date : 2023-01-01 DOI: 10.1051/fopen/2022020

Avirup Panja, Prasun Patra

引用次数: 1

Adaptability of polyurea microcapsules loaded with octyl salicylate for sunscreen application: influence of shell thickness of microfluidic-calibrated capsules on UV absorption efficiency 负载水杨酸辛酯的聚脲微胶囊对防晒应用的适应性:微流体校准胶囊壳厚度对紫外线吸收效率的影响

4open Pub Date : 2023-01-01 DOI: 10.1051/fopen/2023004

Jiupeng Du, Pablo Canamas, P. Guichardon, N. Ibaseta, Bruno Montagnier, J. Hubaud

引用次数: 0

Post-synthetic modification of semiconductor nanoparticles can generate lanthanide luminophores and modulate the electronic properties of preformed nanoparticles 半导体纳米粒子的合成后修饰可以产生镧系发光团，并可以调节预制纳米粒子的电子特性

4open Pub Date : 2023-01-01 DOI: 10.1051/fopen/2023007

Saoni Rudra, Madhumita Bhar, P. Mukherjee

{"title":"Post-synthetic modification of semiconductor nanoparticles can generate lanthanide luminophores and modulate the electronic properties of preformed nanoparticles","authors":"Saoni Rudra, Madhumita Bhar, P. Mukherjee","doi":"10.1051/fopen/2023007","DOIUrl":"https://doi.org/10.1051/fopen/2023007","url":null,"abstract":"Post-synthetic modification of inorganic nanoparticles (NPs) provides a unique lesser synthetically demanding opportunity to access nanomaterials those are oftentimes not directly realizable by conventional synthetic routes. Trivalent lanthanide (Ln3+) incorporated (doped) semiconductor NPs can benefit from individual properties of the NPs and Ln3+ moieties. This work summarizes key outcomes from experiments when (a) ZnS /CdS /CdSe NPs are post-synthetically treated with Ln3+ to generate ZnS/Ln or CdSe/Ln [Ln = Pr, Nd, Sm, Eu, Tb, Dy, Ho, Er, Tm, Yb] and CdS/Ln [Eu, Tb] NPs, (b) synthetically Tb3+ doped Zn(Tb)S NPs are post-synthetically modified with varying concentration of heavy metals like Pb2+/Cd2+ to generate Zn(Tb)S/M [M = Pb, Cd] NPs, and (c) the pH of Zn(Tb)S NPs aqueous dispersion is varied post-synthetically. Key observations from these experiments include (a) incorporation of Ln in all the post-synthetically prepared CA/Ln NPs, with presence of host sensitized dopant emission in select cases that can be rationalized by a charge trapping mediated dopant emission sensitization processes, (b) existence of rich photophysics in the sub-stoichiometric reactant concentration ratio, and (c) identifying the alteration of surface capping ligand structure as an important variable to control the Ln3+ emission. In summary, these experimental observations provide an easy control of reaction conditions either to generate Ln3+ inorganic NP luminophores or to control their electronic properties by modulating either the NP’s core or surface properties, and are of potential usefulness in various luminescence based applications.","PeriodicalId":6841,"journal":{"name":"4open","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79583889","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dwell time in contact-free creep tests plays an age-dependent role in the viscoelastic behavior of in vivo human skin 在无接触蠕变试验中的停留时间在人体皮肤的粘弹性行为中起着年龄依赖的作用

4open Pub Date : 2023-01-01 DOI: 10.1051/fopen/2023006

M. Abellan, M. Ayadh, J. Bergheau, H. Zahouani

引用次数: 0

A method for the elicitation of copulas 引出连音的一种方法

4open Pub Date : 2023-01-01 DOI: 10.1051/fopen/2023001

V. González-López, Vinícius Litvinoff Justus

引用次数: 1

Collective biological computation in metabolic economy 代谢经济中的集体生物计算

4open Pub Date : 2023-01-01 DOI: 10.1051/fopen/2023002

D. Korosak, Sandra Postić, A. Stožer, Marjan Slak Rupnik

引用次数: 0

Investigation of the link between the human skin relief and the dermal fibers network by coupling topographic analysis and LC-OCT imaging before and during folding tests 在折叠试验前和折叠过程中，结合地形分析和LC-OCT成像研究人体皮肤松弛与真皮纤维网络之间的联系

4open Pub Date : 2023-01-01 DOI: 10.1051/fopen/2023005

M. Ayadh, Amaury Guillermin, M. Abellan, Sara Figueiredo, M. Pedrazzani, Emmanuel Cohen, A. Bigouret, H. Zahouani

{"title":"Investigation of the link between the human skin relief and the dermal fibers network by coupling topographic analysis and LC-OCT imaging before and during folding tests","authors":"M. Ayadh, Amaury Guillermin, M. Abellan, Sara Figueiredo, M. Pedrazzani, Emmanuel Cohen, A. Bigouret, H. Zahouani","doi":"10.1051/fopen/2023005","DOIUrl":"https://doi.org/10.1051/fopen/2023005","url":null,"abstract":"Knowing the evolution of the skin’s response to mechanical solicitations and understanding its origin is important in medicine, surgery, and cosmetics. Studies performed in vitro and ex vivo show that links exist between the topographic skin properties and the collagen and elastin fibers network in the dermis. But, to our knowledge, no in vivo study shows this link. In this study we propose a combination of experimental tests to demonstrate the link between the topographic skin properties and the fibers network in the dermis in vivo. The first method consists in analyzing the skin relief images. The second method uses a recently developed imaging technique of human skin in vivo with a high spatial resolution: Line-field Confocal Optical Coherence Tomography (LC-OCT). This technology provides two types of images modalities: vertical and horizontal section images. The skin relief images and its internal layers are carried out for the skin at rest and during a folding test. The latter is performed using a folding system developed in this study. From these images, we calculate the density of the skin lines printed on the skin surface and their orientations. Thanks to the two modalities of LC-OCT, we obtain the full 3D image of the skin volume. From these images we extract the fibers density and their orientation in the plans parallel and perpendicular to the outer skin surface. The study is carried out on 42 volunteers aged from 20 to 55 years-old. Skin relief analysis and LC-OCT images are performed on the skin of the forearm and thigh. The results show similar distributions of the skin lines on the surface and of its fibers in the volume. We could observe a correlation between the skin lines at the surface and the structure in depth of its layers in the volume (0.40 < rSpearman < 0.73).","PeriodicalId":6841,"journal":{"name":"4open","volume":"104 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80839922","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Statistical dependence and shape of Young tableau 杨表的统计依赖性和形状

4open Pub Date : 2023-01-01 DOI: 10.1051/fopen/2023003

J. E. García, V. González-López, Maria Magdalena Kcala Alvaro

引用次数: 0

Recent developments in mitochondrial medicine (part 2) 线粒体医学的最新进展(下)

4open Pub Date : 2022-01-01 DOI: 10.1051/fopen/2022002

V. Weissig, M. Edeas

{"title":"Recent developments in mitochondrial medicine (part 2)","authors":"V. Weissig, M. Edeas","doi":"10.1051/fopen/2022002","DOIUrl":"https://doi.org/10.1051/fopen/2022002","url":null,"abstract":"Called “bioblasts” in 1890, named “mitochondria” in 1898, baptized in 1957 as the “powerhouse of the cell” and christened in 1999 as the “motor of cell death”, mitochondria have been anointed in 2017 as “powerhouses of immunity”. In 1962, for the first time a causal link between mitochondria and human diseases was described, the genetic basis for which was revealed in 1988. The term “mitochondrial medicine” was coined in 1994. Research into mitochondria has been conducted ever since light microscopic studies during the end of the 19th century revealed their existence. To this day, new discoveries around this organelle and above all new insights into their fundamental role for human health and disease continue to surprise. Nowadays hardly any disease is known for which either the etiology or pathogenesis is not associated with malfunctioning mitochondria. In this second part of our review about recent developments in mitochondrial medicine we continue tracking and highlighting selected lines of mitochondrial research from their beginnings up to the present time. Mainly written for readers not familiar with this cell organelle, we hope both parts of our review will substantiate what we articulated over a decade ago, namely that the future of medicine will come through better understanding of the mitochondrion.","PeriodicalId":6841,"journal":{"name":"4open","volume":"118 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77395706","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Entropy of pure states: not all wave functions are born equal 纯态熵:并非所有波函数生来都是相等的

4open Pub Date : 2022-01-01 DOI: 10.1051/fopen/2021006

D. Sunko

引用次数: 3