期刊
LASER & PHOTONICS REVIEWS
卷 15, 期 1, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/lpor.201900084
关键词
background suppression; nonlinear optical imaging; photon reassignment; subtraction technique; super‐ resolution microscopy
资金
- National Natural Science Foundation of China [61827825, 61735017]
- Key Research and Development Program of Zhejiang Province [2020C01116]
- Fundamental Research Funds for the Central Universities [2019XZZX003-06, K20200132]
- Zhejiang Lab [2018EB0ZX01, 2020MC0AE01]
The emergence of optical super-resolution imaging has advanced biological research at the nanoscale level, overcoming the constraints of diffraction limit in conventional far-field optical imaging. Recent advancements in techniques have addressed the weaknesses of existing super-resolution modalities in biological applications, focusing on enhancing system resolution, background suppression, and reducing complexity. The modification of factors such as hardware, light path, fluorescent probe, and algorithm has led to the development of cost-effective and flexible imaging tools like the subtraction technique.
For decades, the spatial resolution of conventional far-field optical imaging has been constrained due to the diffraction limit. The emergence of optical super-resolution imaging has facilitated biological research in the nanoscale regime. However, the existing super-resolution modalities are not feasible in many biological applications due to weaknesses, like complex implementation and high cost. Recently, various newly proposed techniques are advantageous in the enhancement of the system resolution, background suppression, and improvement of the hardware complexity so that the above-mentioned issues could be addressed. Most of these techniques entail the modification of factors, like hardware, light path, fluorescent probe, and algorithm, based on conventional imaging systems. Particularly, subtraction technique is an easily implemented, cost-effective, and flexible imaging tool which has been applied in widespread utilizations. In this review, the principles, characteristics, advances, and biological applications of these techniques are highlighted in optical super-resolution modalities.
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