Table 2 Experimental results reveal an optimization tradeoff between trackable diffusion rates and localization error for MFX-enabled single particle tracking

From: Parameter optimization for MINFLUX microscopy enabled single particle tracking

\({{\rm{S}}}\)

PL

DMP

\({{{\rm{t}}}}_{{{\rm{dwell}}}}\)

\({{{\rm{D}}}}_{{{\rm{eMSD}}}}\) \([{{\rm{\mu }}}{{{\rm{m}}}}^{2}/{{\rm{s}}}]\)

\({{{\rm{\sigma }}}}_{{{\rm{eMSD}}}}\) \(\left[{{\rm{nm}}}\right]\)

\({{{\rm{\sigma }}}}_{{{\rm{CRLB}}}}\) \([{{\rm{nm}}}]\)

\(\left\langle {{\rm{\eta }}}\right\rangle\)

\(\left\langle {{{\rm{t}}}}_{{{\rm{loc}}}}\right\rangle\) \([{{\rm{\mu }}}{{\rm{s}}}]\)

\(\frac{\left\langle {{\rm{N}}}\right\rangle }{\left\langle {{\rm{\eta }}}\right\rangle {{{\rm{N}}}}_{{{\rm{PL}}}}}\)

\({{\rm{n}}}\)

I

10

0

100

2.46

30.30

20.03

1

150

2.13

855

II

10

5

100

0.07

16.52

20.03

1

150

4.10

924

II

10

2

100

0.49

15.53

20.03

1

150

4.49

988

II

10

0

100

0.63

28.02

20.03

1

150

3.36

1075

II

10

0

100

0.63

27.96

20.03

1

150

3.36

1061

II

20

0

100

0.52

22.78

14.35

1

151

2.27

841

II

50

0

100

0.48

14.05

9.08

2

282

0.71

534

III

10

0

100

0.46

30.37

20.03

1

150

1.53

576

III

20

0

100

0.36

23.51

14.35

2

281

0.67

325

III

50

0

100

0.23

13.46

9.08

5

676

0.22

323

II

50

0

50

0.28

4.67

9.08

5

437

0.23

779

II

50

0

100

0.28

5.50

9.08

3

414

0.42

763

II

50

0

200

0.21

10.91

9.08

2

483

0.82

564

II

TIRF SPT

0.64

39.86

-

1

14925

-

1810

  1. In addition to the ideal CRLB \({\sigma }_{{CRLB}}\left(\bar{r}=\bar{0}\right)\) (see Supplementary Material of ref. 8, p. 11) we list the lateral diffusion coefficient \({D}_{{eMSD}}\) as well as the lateral localization error \({\sigma }_{{eMSD}}\) extracted from the ensemble-average Mean-Squared-Displacement (eMSD) using Optimal Least Squares Fitting (OLSF) assuming momentary Brownian motion. Here \(\eta\) refers to the number of cycles, \({t}_{{loc}}\) is the time-to-localization, \(N\) is the number of photons, \({N}_{{PL}}\) is the PL, and \(\left\langle \ldots \right\rangle\) the scale-appropriate average value. We indicate the sample size \(n\), i.e., the number of tracks per set, in the last column. The first column \(S\) indicates the sample in reference: Dye on GUV-patch SLB (I), QDs on GUV-patch SLB (II), QDs on Lipid-Deposition-SLB (III).