Photophoretic trapping-Raman spectroscopy for single pollens and fungal spores trapped in air
نویسندگان
چکیده
منابع مشابه
Photophoretictrapping-Raman spectroscopy for single pollens and fungal spores trapped in air
Photophoretic trapping-Raman spectroscopy (PTRS) is a new technique for measuring Raman spectra of particles that are held in air using photophoretic forces. It was initially demonstrated with Raman spectra of strongly-absorbing carbon nanoparticles (Pan et al. [44] (Opt Express 2012)). In the present paper we report the first demonstration of the use of PTRS to measure Raman spectra of absorbi...
متن کاملRaman Spectroscopy of Optically Trapped Single Biological Micro-Particles
The combination of optical trapping with Raman spectroscopy provides a powerful method for the study, characterization, and identification of biological micro-particles. In essence, optical trapping helps to overcome the limitation imposed by the relative inefficiency of the Raman scattering process. This allows Raman spectroscopy to be applied to individual biological particles in air and in l...
متن کاملNear-infrared Raman spectroscopy of single optically trapped biological cells.
We report on the development and testing of a compact laser tweezers Raman spectroscopy (LTRS) system. The system combines optical trapping and near-infrared Raman spectroscopy for manipulation and identification of single biological cells in solution. A low-power diode laser at 785 nm was used for both trapping and excitation for Raman spectroscopy of the suspended microscopic particles. The d...
متن کاملNear-infrared Surface-enhanced-raman-scattering (sers) Mediated Identification of Single, Optically Trapped, Bacterial Spores
A novel methodology has been developed for the investigation of bacterial spores. Specifically, this method has been used to probe the spore coat composition of several Bacillus species. This technique may be useful in many applications; most notably, development of novel detection schemes toward potentially harmful biological agents. This method would also be useful as an ancillary environment...
متن کاملAsthma and the Diversity of Fungal Spores in Air
The diversity of fungal spores in air is vast ([1,2], Figure 1), but research on asthma focuses on a handful of easily identified, culturable species. Ecologists are developing new tools to probe communities and identify the full complement of fungi in habitats. These tools may enable identification of novel asthma triggers, but scientists involved in public health or medicine rarely interact w...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Quantitative Spectroscopy and Radiative Transfer
سال: 2015
ISSN: 0022-4073
DOI: 10.1016/j.jqsrt.2014.11.004