Articles with "freeze drying" as a keyword



Enhancing the Performance of Flexible Polyimide Aerogels by Structural Tuning via Freeze‐Drying and Water‐Soluble Crosslinker Design

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Published in 2025 at "Journal of Applied Polymer Science"

DOI: 10.1002/app.57106

Abstract: This research addresses the limited flexibility of polyimide (PI) aerogels by developing an innovative, cost‐effective, and environmentally friendly preparation method. By combining freeze‐drying technology with melamine, a water‐soluble crosslinker, the microscopic structure is refined through… read more here.

Keywords: spectroscopy; freeze drying; crosslinker; polyimide aerogels ... See more keywords

Visualizing Antimicrobial Effects on Bacterial Surfaces by SEM: A Comparative Study of Hexamethyldisilazane (HMDS) and Freeze‐Drying

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Published in 2025 at "Microscopy Research and Technique"

DOI: 10.1002/jemt.70037

Abstract: Scanning electron microscope (SEM) can observe bacterial morphology with nanoscale spatial resolution and is therefore used to investigate the action mechanisms of disinfectants. Since the structural changes that show antibacterial effects are extremely subtle, reliable… read more here.

Keywords: antimicrobial effects; freeze; visualizing antimicrobial; freeze drying ... See more keywords

Effects of microwave-assisted pulse-spouted bed freeze-drying (MPSFD) on volatile compounds and structural aspects of Cordyceps militaris.

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Published in 2018 at "Journal of the science of food and agriculture"

DOI: 10.1002/jsfa.8993

Abstract: BACKGROUND Microwave-assisted pulse-spouted bed freeze-drying (MPSFD) uses microwave heating to substitute the customary conduction heating during freeze drying (FD), resulting in high-quality dried samples with a short drying time. The aim of this study was… read more here.

Keywords: freeze drying; pulse spouted; microwave assisted; assisted pulse ... See more keywords

Dry Bondable Porous Silk Fibroin Films for Embedding Micropatterned Electronics in Hierarchical Silk Nacre.

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Published in 2024 at "Small"

DOI: 10.1002/smll.202408808

Abstract: Future structural materials is not only be lightweight, strong, and tough, but also capable of integrating functions like sensing, adaptation, self-healing, deformation, and recovery as needed. Although bio-inspired materials are well developed, directly integrating microelectronic… read more here.

Keywords: silk; freeze drying; silk fibroin; dry bondable ... See more keywords
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Freeze-Drying of Lactic Acid Bacteria: A Stepwise Approach for Developing a Freeze-Drying Protocol Based on Physical Properties.

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Published in 2021 at "Methods in molecular biology"

DOI: 10.1007/978-1-0716-0783-1_38

Abstract: Freeze-drying or lyophilization has become a reference process for preserving lactic acid bacteria. The development of stable freeze-dried lactic acid bacteria (LAB) requires maintaining the biological activity of the cells and the macroscopic porous structure… read more here.

Keywords: freeze drying; physical properties; freeze; acid bacteria ... See more keywords

Applications of Freezing and Freeze-Drying in Pharmaceutical Formulations.

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Published in 2018 at "Advances in experimental medicine and biology"

DOI: 10.1007/978-981-13-1244-1_20

Abstract: Freeze-drying is a popular method to prepare pharmaceutical formulations containing structurally complex active ingredients and drug delivery system carriers. The solidification performed at lower temperature significantly improves storage stability of proteins, peptides, antibiotics, vaccines, and… read more here.

Keywords: pharmaceutical formulations; freeze drying; applications freezing; process ... See more keywords

Evaluation of infrared assisted freeze drying for strawberry snacks: drying kinetics, energy efficiency and quality attributes

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Published in 2021 at "Food Science and Biotechnology"

DOI: 10.1007/s10068-021-00949-1

Abstract: Feasibility of infrared assisted freeze drying (IRAFD) was evaluated for production of the strawberry snacks. Infrared (IR) radiation provided the driving force of ice sublimation during freeze drying (FD). Different IRAFD conditions were tested, including… read more here.

Keywords: freeze drying; energy; assisted freeze; strawberry snacks ... See more keywords

Freeze-drying prepared ready-to-use gelatin @polypropylene nonwoven hybrid sheet for stacking 3D cell culture

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Published in 2019 at "Cellulose"

DOI: 10.1007/s10570-019-02545-3

Abstract: A novel free-standing gelatin-impregnated polypropylene nonwoven (gelatin @PP nonwoven hybrid sheet) was prepared by loading gelatin hydrogel on nonwoven fabric, followed by a freeze-drying procedure. Formation of gelatin in the gaps between the PP fibers… read more here.

Keywords: freeze drying; gelatin nonwoven; nonwoven hybrid; hybrid sheet ... See more keywords
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High post-thaw survival of ram sperm after partial freeze-drying

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Published in 2018 at "Journal of Assisted Reproduction and Genetics"

DOI: 10.1007/s10815-018-1145-1

Abstract: BackgroundRecrystallization damages occur when a frozen sample is held at high subzero temperatures and when the warming process is too slow.MethodsIn this work, ram semen diluted in two different concentrations of sugar solutions (Lyo A… read more here.

Keywords: dried samples; freeze drying; high post; freeze ... See more keywords

Controllable preparation of three-dimensional porous WO3 with enhanced visible light photocatalytic activity via a freeze-drying method

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Published in 2018 at "Journal of Materials Science: Materials in Electronics"

DOI: 10.1007/s10854-018-8996-1

Abstract: Three dimensional porous WO3 was fabricated by a novel freeze-drying method using a polyvinyl alcohol (PVA)/phosphotungstic acid (H3PW12O40) aqueous solution as the precursor followed by calcination. Results revealed that WO3 interconnected porous structures have channels… read more here.

Keywords: three dimensional; dimensional porous; freeze drying; porous wo3 ... See more keywords

Changes in microstructure and functional properties of papaya as affected by osmotic pre-treatment combined with freeze-drying

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Published in 2018 at "Journal of Food Measurement and Characterization"

DOI: 10.1007/s11694-018-9718-3

Abstract: Freeze-drying represents a very effective method to significantly prevent loss of nutrients, especially heat-sensitive compounds. Moreover, osmotic dehydration is frequently applied prior to drying in order to facilitate moisture removal and improve quality. In the… read more here.

Keywords: freeze drying; osmotic pre; treatment combined; pre treatment ... See more keywords