ArticlePolymers2021
False Morphology of Aerogels Caused by Gold Coating for SEM Imaging.
Article in Polymers, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed.
- Reliable characterization of polymer electrolytes for next-generation energy storage: misinterpretations, challenges, and methodological solutions.RSC advances · 2026Review
- Alginate Aerogels Crosslinked with Isophorone-Based Polyurea: The Missing Link between Rigid Aromatic and Flexible Aliphatic Nanostructured Networks.ACS applied polymer materials · 2026Article
- The Stability of Chlorite Ion in Electrospun Poly(Vinyl Alcohol) Fibers: pH-Responsive Chlorine Dioxide Release.ACS omega · 2026Article
- Food-Grade Emulsion Gels as Nutrient Delivery Systems-Standardized Workflow for Fabrication, Characterization, and Application.Gels (Basel, Switzerland) · 2026Review
- Study of Hemp Fiber Properties Modified via Long-Duration Low-Pressure Argon and Oxygen Plasma Treatments.ACS omega · 2025Article
- Fabrication and Advanced Imaging Characterization of Magnetic Aerogel-Based Thin Films for Water Decontamination.Gels (Basel, Switzerland) · 2024Article
- A greener approach for synthesizing metal-decorated carbogels from alginate for emerging technologies.Nanoscale advances · 2023Article
- Super-Insulating Transparent Polyisocyanurate-Polyurethane Aerogels: Analysis of Thermal Conductivity and Mechanical Properties.Nanomaterials (Basel, Switzerland) · 2022Article
- A Brief Evaluation of Pore Structure Determination for Bioaerogels.Gels (Basel, Switzerland) · 2022Review
- Optical Properties of Polyisocyanurate-Polyurethane Aerogels: Study of the Scattering Mechanisms.Nanomaterials (Basel, Switzerland) · 2022Article
- Interaction of Aqueous Bovine Serum Albumin with Silica Aerogel Microparticles: Sorption Induced Aggregation.International journal of molecular sciences · 2022Article
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Authors and funding
7 authors.
Funding
Abstract
The imaging of non-conducting materials by scanning electron microscopy (SEM) is most often performed after depositing few nanometers thick conductive layers on the samples. It is shown in this work, that even a 5 nm thick sputtered gold layer can dramatically alter the morphology and the surface structure of many different types of aerogels. Silica, polyimide, polyamide, calcium-alginate and cellulose aerogels were imaged in their pristine forms and after gold sputtering utilizing low voltage scanning electron microscopy (LVSEM) in order to reduce charging effects. The morphological features seen in the SEM images of the pristine samples are in excellent agreement with the structural parameters of the aerogels measured by nitrogen adsorption-desorption porosimetry. In contrast, the morphologies of the sputter coated samples are significantly distorted and feature nanostructured gold. These findings point out that extra care should be taken in order to ensure that gold sputtering does not cause morphological artifacts. Otherwise, the application of low voltage scanning electron microscopy even yields high resolution images of pristine non-conducting aerogels.
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