Introduction Solid-lipid nanoparticles (SLNs) have recently gained significant attention as potential alternate colloidal drug delivery system over conventional dosage form. Isotretinoin, a derivative of retinoic acid (13-cis-retinoic acid), has been commonly used for the treatment of severe acne and other dermatological diseases1,2. However, it has obvious adverse side-effects by oral administration. The launched topical preparations such as cream also show systemic absorption and significant
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Aacknowledgement First of all I like to thank God almighty who authorise me to research on this topic. I submit my sincere thanks to my supervisor Medhat Khattar for his valuable presence, time, effort, guidance and help to complete this dissertation. My dissertation would not have been completed without the help of lab technicians Nick and Suzy, I am extremely grateful for their help, suggestions and encouragement. I might want to thank my family for impacting in me a comprehension for the significance
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Aspergillus oryzae A. oryzae, junto con la mayoría de los otros miembros de la familia Aspergillus, tiene una hifas que es hialino y septado, y cuneiforme, que termina en una vesícula de forma redonda. Las células portadores de esporas, o ascos, se producen dentro de la asco carpo, o el cuerpo fructífero. La principal enzima secretada por el hongo filamentoso se llama amilasa, que le da un sabor dulce a los alimentos que se fermenta en. Esta enzima es más eficiente a una temperatura de 35-40 grados
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together to form organs. Organs collaborate to form organ systems. Organisms respond to different stimulus. A good example of this is that plants grow toward the light they also climb on walls and fences or respond to the touch. Even the smallest bacteria can move away or toward chemicals. Movement toward this is considered a good response, while movement away from this is considered a negative response. The single celled creatures or organisms multiply by duplicating their DNA. They then divide
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more resistant to many different antibiotics. Global pandemic: Of the Purple Cocci Bacteria are living organisms and just like any other living organism, it wants to live and survive, even when it’s trying to be killed. It is this survival instinct that has lead certain bacterial strains to evolve and grow, to become a global pandemic. Methicillin-resistant Staphylococcus aureus or MRSA is a group of bacteria leads to thousands of deaths every year. In order to understand MRSA, you first need
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that is used on a daily basis in a molecular biological laboratory. This is based on the natural function of a plasmid: to transfer genetic information vital to the survival of the bacteria. Transformation is an example of horizontal gene transfer. There are three mechanisms for horizontal gene transfer in bacteria. Conjugation is the transfer of DNA from one cell to another through conjugation pili. Transduction is the transfer of genes between bacterial cells using a bacteriophage (a type of
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Abstract Understanding evolution helps us solve biological problems that impact our lives. There are excellent examples of this in the field of medicine. To stay one step ahead of pathogenic diseases, researchers must understand the evolutionary patterns of disease-causing organisms. To control hereditary diseases in people, researchers study the evolutionary histories of the disease-causing genes. In these ways, knowledge of evolution can improve the quality of human life. Evolution played an
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GROWTH OF BACTERIA INTRODUCTION Is there a difference in germ killing when using antibacterial soap or hand sanitizer? When using hand sanitizer or antibacterial soap one is more likely to have a lower bacteria count than the other. Other factors contribute to the less bacteria count like the amount of time one washes their hands and the amount of soap one uses. If two groups were to wash their hands one with hand sanitizer and the other with antibacterial soap then the group who washed their hands
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What Can We Do About Antibiotic-Resistant Bacteria? Essay Antibiotic Resistant Bacteria is bacteria that has mutated and have become immune to antibiotics to treat them. In science terms Antibiotic resistance is the ability of a microorganism to withstand the effects of an antibiotic; this was said in an article called Antibiotic Resistance on Daily Science website. In all the scientific terms it is hard to understand exactly what all of this means, the simplest way to explain it is when antibiotics
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Bio 156 – Midterm Study Guide Lesson One I. Characteristics of Life • List four main characteristics of all living things II. Diversity and Organizing Life • Describe three ways of classifying, or ordering, life on earth. • Given a random ordering of the levels of organization of life, rearrange them into the proper sequence. • Describe the concept "an organism is more than the sum of its parts." • List the six kingdoms of life
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