Cyclic amino acids are a class of amino acids that contain a cyclic structure in their side chain. These amino acids typically have a different structure compared to the standard amino acids found in proteins.
In the realms of biology and human health, the terms “cholesterol” and “lipids” frequently appear, often shrouded in a blend of misconceptions and crucial truths. As foundational elements of both structural and metabolic processes, these compounds play vital roles in maintaining the intricate balance of life. This article aims to illuminate the characteristics, functions, and importance of cholesterol and lipids in overall health.
In the realms of pharmaceuticals and biotechnology, drug delivery systems have evolved significantly over the past few decades, with liposomes emerging as one of the most promising vehicles. Liposomes, microscopic spheres composed of lipid bilayers, offer a versatile platform for delivering drugs, enhancing bioavailability, and minimizing toxicity. This article delves into the revolutionary impact of liposome drug delivery systems and the burgeoning field of custom liposomes.
The fields of biotechnology and molecular biology have made significant strides due to advancements in protein and peptide modification techniques. Among these, biotinylation and PEGylation stand out as transformative. Both methods have opened new avenues in drug delivery, diagnostics, and therapeutic applications. This article introduces these two key techniques and discusses their implications, with a specific focus on PEGylated interferon.
The intricate and beautiful structure of DNA and RNA, the blueprints of life, is composed of fundamental molecular units known as nucleosides and nucleotides. These molecules not only serve as the foundational components of genetic material but also play pivotal roles in various biochemical processes essential for life. While the terms "nucleoside" and "nucleotide" are often used interchangeably, they refer to distinct molecular entities with unique structures and functions. In this article, we will delve into the nuanced differences between nucleosides and nucleotides, exploring their structures, roles, and significance in the biological world.
Nanotechnology has emerged as a transformative field with immense potential in various areas including medicine, electronics, and materials science. One of the most promising advancements in this sphere is nanocrystal technology. Nanocrystals, tiny crystals with dimensions typically less than 100 nanometers, offer unique physical, chemical, and electrical properties that differ significantly from their bulk counterparts. This article delves into the realm of nanocrystal technology, exploring its applications, synthesis methods, and future potential.
Deuterium, the isotope of hydrogen, is pivotal in various scientific and industrial fields. Frequently termed "heavy hydrogen," deuterium is distinct from its more common sibling due to an additional neutron in its nucleus. This unique property makes it invaluable in disciplines ranging from nuclear fusion to environmental science.
Polyethylene glycol (PEG) hydrogels have emerged as a game-changer in various scientific and technological fields due to their unique properties. These hydrogels are formed by the cross-linking of PEG, a biocompatible polymer known for its flexibility, hydrophilicity, and adjustable physical properties. This article delves into the significance, applications, benefits, and innovations surrounding PEG hydrogels.
The periodic table of elements is one of the most significant achievements in chemistry. Conceived over 150 years ago by the Russian chemist Dmitri Mendeleev, it organizes the elements according to their atomic number, electron configurations, and recurring chemical properties. An essential aspect often considered in chemistry is the periodic table of elements with charges or ions, which plays a vital role in predicting and understanding the behavior of components in various chemical reactions.
Coumarin, also known as bisfuran cyclooxaphthalone, is a lactone compound widely found in Rutaceae and Umbelliferae. Coumarin is a general term for a class of natural products with a benzo-αpyrone structure, which is widely used in medicine, fragrance, dyes, instrument analysis, agriculture and other fields. The drug molecules with coumarin and its derivatives as the basic skeleton have a wide range of biological activities, such as antioxidant, anticoagulant, antiviral, antibacterial, anti-inflammatory, hypoglycemic, anticancer and neuroprotective, which makes coumarins attractive for further optimization as novel drug templates. So far, there are more than 35 clinical stage and marketed drugs containing coumarin.
Recent years witness the continuous clinical feasibility and increasing commercial value of antibody-drug conjugates (ADCs). As a result, many research institutions attempt to connect PROTAC with monoclonal antibody (mAb) by imitating the design principle of ADC to improve the delivery efficiency of PROTAC in vivo. This combination is called degrader-antibody conjugates (DACs), which can overcome the challenges brought by unconjugated PROTAC molecules, e.g. low efficiency due to its physicochemical properties and DMPK properties (especially the absence of E3 ligase CRBN), and non-specific targeting of PROTAC.
Introduction to Cancer
