Dynamic light scattering distributions by any means

نویسندگان

چکیده

Abstract Dynamic light scattering (DLS) is an essential technique for nanoparticle size analysis and has been employed extensively decades, but despite its long history popularity, the choice of weighting mean distribution often appears to be picked ad hoc bring results into agreement with other methods expectations by any means necessary . Here, we critically discuss application DLS characterization provide much-needed clarification ambiguities in mean-value practice commercial software documentary standards. We address misleading way distributions are presented, that is, as a logarithmically scaled histogram measured relative quantities. Central values obtained incautiously from this representation lead significant interpretation errors. Through measurement monomodal samples having extensive range sizes (5 250 nm) polydispersity, similarly demonstrate default outputs frequently used inversion method ill chosen, they regularizer-dependent significantly deviate cumulant z -average size. The resulting discrepancies typically larger than 15% depending on polydispersity index samples. explicitly identify validate harmonic central value intensity-weighted expresses consistently results. also investigate extent which descriptors representative distributional quality find them unreliable misleading, both monodisperse reference materials broad-distribution biomedical nanoparticles. These overall intended improvements stimulate reexamination metrological capabilities role characterization.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Entrapment–D-(+)-Glucose Water Nanodroplet: Synthesis and Dynamic Light Scattering

In the present research, the D-(+)-Glucose–confined water nanodroplets with mean size in the range of 6-11 nm were synthesized at D-(+)-Glucose different concentrations by AOT reverse micelles (RMs) method as a function of mass fraction of droplet (MFD) at the constant water-to-surfactant molar ratio ( W=40). The dynamic light scattering of the nano-sized water droplets containing the D-(+)-Glu...

متن کامل

Huntingtin aggregation monitored by dynamic light scattering.

An initial stage of fibrillogenesis in solutions of glutathione S-transferase-huntingtin (GST-HD) fusion proteins has been studied by using dynamic light scattering. Two GST-HD systems with poly-L-glutamine (polyGln) extensions of different lengths (20 and 51 residues) have been examined. For both systems, kinetics of z-average translation diffusion coefficients (Dapp) and their angular depende...

متن کامل

Dynamic Light Scattering

A HeNe laser beam incident on a sample of micron-sized spheres suspended in water scatters into a random pattern of spots of varying size, shape, and intensity. The pattern results from the coherent superposition of the outgoing waves scattered from the spheres. Because the spheres are in constant Brownian motion, the pattern randomly changes in time. A photodetector is placed in the pattern an...

متن کامل

Dynamic light scattering

By scattering light from small particles, their geometrical structure and their state of motion can be measured. An experiment is described for measuring the diffusivity of small particles undergoing Brownian motion using the technique called photon correlation spectroscopy or dynamic light scattering. The necessary experimental apparatus and the related theory are discussed. Photon correlation...

متن کامل

ذخیره 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 Nanoparticle Research

سال: 2021

ISSN: ['1572-896X', '1388-0764']

DOI: https://doi.org/10.1007/s11051-021-05220-6