期刊文献+
共找到3篇文章
< 1 >
每页显示 20 50 100
高光谱显微成像技术在微/纳米塑料分析检测中的新应用
1
作者 兰如意 李政翰 +3 位作者 陈志军 张晴 刘卓苗 孙琦 《中国无机分析化学》 CAS 北大核心 2024年第8期1126-1136,共11页
随着塑料污染问题的日益严重,微/纳米塑料因其对生态环境及人体健康的潜在风险而备受关注,精准识别并鉴定复杂介质及生物体中的微/纳米塑料(以纳米塑料为主)已成为该领域深入发展的瓶颈。高光谱成像是一种前沿分析技术,能够对微/纳米颗... 随着塑料污染问题的日益严重,微/纳米塑料因其对生态环境及人体健康的潜在风险而备受关注,精准识别并鉴定复杂介质及生物体中的微/纳米塑料(以纳米塑料为主)已成为该领域深入发展的瓶颈。高光谱成像是一种前沿分析技术,能够对微/纳米颗粒、生物大分子等进行非破坏性、多组分检测,提供目标样品的空间信息和光谱特征,实现精确识别和定量分析。由于该技术在生物体无标记原位成像应用中的可行性,近年来在微/纳米塑料分析检测中展现出巨大的应用潜力。对高光谱显微成像技术的工作原理进行阐述,总结了该技术在生态环境、生物医学等不同科学领域及交叉学科的发展,重点分析了该技术在微/纳米塑料分析检测中的优势,系统综述了该技术在不同环境介质(如,水、大气)和生物体中微/纳米塑料检测的应用。最后,对高光谱显微成像技术未来的功能开发及研究方向进行了建议及展望,为建立并完善微/纳米塑料的精准识别与鉴定方法提供技术保障。 展开更多
关键词 高光谱显微成像 微/纳米塑料 无标记成像 光谱分析
下载PDF
Helium Plasma Effects on Polymer Surfaces:from Plasma Parameters and Surface Properties towards Bioengineering Applications
2
作者 Andrei Vasile Nastuta Maria Butnaru +3 位作者 Byron Cheatham Ramona Huzum Vasile Tiron Ionut Topala 《Chinese Journal of Polymer Science》 SCIE EI CAS CSCD 2024年第8期1156-1166,共11页
Plasma treatment is necessary to optimize the performance of biomaterial surfaces.It enhances and regulates the performance of biomaterial su rfaces,creating an effective interface with the human body.Plasma treatment... Plasma treatment is necessary to optimize the performance of biomaterial surfaces.It enhances and regulates the performance of biomaterial su rfaces,creating an effective interface with the human body.Plasma treatments have the ability to modify the chemical com position and physical structu re of a surface while leaving its properties unaffected.They possess the ability to modify material su rfaces,eliminate contaminants,conduct investigations on cancer therapy,and facilitate wound healing.The subject of study in question involves the integration of plasma science and technology with biology and medicine.Using a helium plasma jet source,applying up to 18 kV,with an average power of 10 W,polymer foils were treated for 60 s.Plasma treatment has the ability to alter the chemical composition and physical structure of a su rface while maintaining its quality.This investigation involved the application of helium plasma at atmospheric pressure to polyamide 6 and polyethylene terephthalate sheets.The inquiry involves monitoring and assessing the plasma source and polymer materials,as well as analyzing the impacts of plasma therapy.Calculating the mean power of the discharge aids in assessing the economic efficacy of the plasma source.Electric discharge in helium at atmospheric pressure has beneficial effects in technology,where it increases the surface free energy of polymer materials.In biomedicine,it is used to investigate cytotoxicity and cell survival,particularly in direct blood exposure situations that can expedite coagulation.Comprehending the specific parameters that influence the plasma source in the desired manner for the intended application is of utmost im portance. 展开更多
关键词 Atmopheric pressure plasmas Plasma-polymer interaction Plasma Medicine Plasma diagnosis Polymer characterization
原文传递
An anisotropic propagation technique for synthesizing hyperbranched polyvillic gold nanoparticles 被引量:2
3
作者 Aaron S. Schwartz-Duval Santosh K. Misra +3 位作者 Prabuddha Mukhejee Elyse Johnson Alvin S. Acerbo Dipanjan Pan 《Nano Research》 SCIE EI CAS CSCD 2016年第10期2889-2903,共15页
Of late, many synthesis processes have been studied to develop irregular nano-rnorphologies of gold nanostructures for biomedical applications in order to increase the efficacy of nanoparticle theranostics, tune the p... Of late, many synthesis processes have been studied to develop irregular nano-rnorphologies of gold nanostructures for biomedical applications in order to increase the efficacy of nanoparticle theranostics, tune the plasmonic absorbance spectra, and increase the sensitivity of biomolecule detection through surface enhanced Raman spectroscopy. Here we report, a novel, non-seed mediated versatile single pot synthesis method capable of producing hyperbranched gold "nano-polyvilli" with more than 50-90 branching nanowires propagating from a single origin within each structure. The technique was capable of achieving precise tuning of the branch propagation where the branching could be controlled by varying the duration of incubation, temperature, and hydrogen ion concentration. 展开更多
关键词 gold nanoparticles surface enhanced Raman spectroscopy (SERS) ANISOTROPY asymmetric nanocrystallization
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部