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Ultrasound-Assisted Solid-Phase Affibody Synthesis Using Z as an Example-Superior to the Conventional Protocol?
Pharmaceuticals (Basel)
September 2024
Biomedical Chemistry, Clinic of Radiology and Nuclear Medicine, Medical Faculty Mannheim, Heidelberg University, Theodor-Kutzer-Ufer 1-3, 68167 Mannheim, Germany.
Background: Affibody molecules represent a class of highly specific binders of particular interest for the development of highly affine target-specific radiopharmaceuticals. Their chemical synthesis is, however, intricate due to their considerable length of 58 amino acids; thus, approaches to optimize their preparation are constantly being sought.
Methods: As ultrasound assistance has recently been shown to increase the efficiency of amino acid conjugation during solid-phase peptide synthesis (SPPS), the influence of ultrasonication on the outcome of the SPPS-based preparation of the EGFR-specific affibody Z was compared to a common protocol relying on mechanical shaking.
On the Rapid Synthesis of Reduced Graphene Oxide via Ultrasound-Promoted Eco-Friendly Reduction Approach and Its Effects on Physicochemical Properties.
ChemSusChem
December 2024
School of Electronic and Information Engineering, Changshu Institute of Technology, Suzhou, 215500, China.
The common synthesis approach of reduced graphene oxide (rGO) using toxic reducing agents poses a threat to environmental pollution. This study used banana peel extract as a green reducing agent for the synthesis of rGO. Ultrasonication was assimilated to expedite the synthesis process.
View Article and Find Full Text PDFAmine-functionalized porous silica production via ex- and in-situ method using silicate precursors as a selective adsorbent for CO capture applications.
Heliyon
March 2024
Department of Chemical Engineering, Institut Teknologi Sepuluh Nopember, Kampus ITS Sukolilo, Surabaya, 60111, Indonesia.
A comparison of the amine-modified silica particle's characteristics via ex- and in-situ routes and their application as a CO gas adsorbent is reported. Modifying silica particles via ex-situ involves two separate steps: forming porous silica particles with sodium lauryl sulfate (SLS) as a template and impregnation using ultrasound assistance. In contrast to ex-situ modification, in-situ modification of silica particles is carried out in one step by mixing directly between the silica source and the modifying agent.
View Article and Find Full Text PDFComparison of ultrasound-assistance versus traditional palpation method for placement of thoracic epidural catheters: a randomized controlled trial.
Reg Anesth Pain Med
April 2022
Department of Anesthesia and Pain Management, Mount Sinai Hospital, Toronto, Ontario, Canada.
Ultrasound guidance for arterial (other than femoral) catheterisation in adults.
Cochrane Database Syst Rev
October 2021
Department of Surgery, Division of Vascular and Endovascular Surgery, Universidade Federal de São Paulo, São Paulo, Brazil.
Background: Arterial vascular access is a frequently performed procedure, with a high possibility for adverse events (e.g. pneumothorax, haemothorax, haematoma, amputation, death), and additional techniques such as ultrasound may be useful for improving outcomes.
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