Room Biosensor 1 MUSEUM ENTRANCE Room My Biosensor

Room Biosensor 1 MUSEUM ENTRANCE Room My Biosensor Room Explanation Bibliography Room Biosensor 2 Informative video Welcome to the Museum of Biosensors by Margarita Bran Curator’s Offices

Curator’s Name My name is Margarita. I’m 18 years old. I like to celebrate Halloween. I enjoy eating cake. This is my chemistry project for the fourth period an I hope you like it. ; ) Contact me at mbran 2080462@montessori. edu. gt Return to Entry Note: Virtual museums were first introduced by educators at Keith Valley Middle School in Horsham, Pennsylvania. This template was designed by Dr. Christy Keeler. View the Educational Virtual Museums website for more information on this instructional technique.

+ Room 1 What are biosensors? Room 1 Elements of a biosensor Applications Return to Entry History of Biosensors?

+ Room 2 Name of the Biosensor: Room 2 Alcohol biosensor Name of the Biosensor Return to Entry Gas Biosensors

+ Room 3 Name of the Biosensor: Room 3 Miscellaneous Biosensor Name of the Biosensor: Return to Entry Lactate Biosensor

+ Room 4 My own Biosensor: Room 4 Artifact 15 Return to Entry Artifact 16

What are biosensors? A biosensor is short for the term “biological sensor”. It is made up of a transducer and a biological element, that can be an enzyme nucleic acid or even an antibody. A global definition could be: “A chemical sensing device in which a biologically derived recognition is coupled to a transducer, to allow the quantitative development of some complex biochemical parameter. ” Depending on their particular application, biosensors are also known as immunosensors, optrodes, biochios, glucometer and even chemical canaries. Return to Exhibit

Parts and elements PARTS of a biosensors: ELEMENTS of a biosensor: Every sensor has a biological component, that is the sensor, and an electric component, that transmits the signal. The bioelements can be either: • Nucleic acids • Lectins • Plant proteins • Proteins with antibodies and enzymes • Microorganisms or organelles Return to Exhibit

Applications Biosensors are very sophisticated and they own a combination of technological advances fields like microelectronics and biotechnology. They are highly valuable because they measure a wide range of analyzes including organic compounds, ions, bacteria and even gases. They are used in the food industry to measure alcohols, carbohydrates, acids and more during the quality control process. They are even used to check the fermentation of certain products like bear or yoghurt or in the medical fields to measure certain levels like glucose and diagnose diabetes. Return to Exhibit

History of Biosensors The first biosensor experiment was by Leland C. Clark. He used platinum electrodes to detect oxygen and enzyme glucose oxidase very close to the surface. The GOD, protons and electrons, with all the oxygen surrounding react to give hydrogen peroxide the original form for more glucose to react with. An increase of hydrogen peroxide or decrease of oxygen measure the glucose concentration. Linked citation goes here Return to Exhibit

Alcohol Biosensor Continual measurements of alcohol concentration in culture broth for fermentation industries. In the cultivation, micro organisms use methyl alcohol as a carbon source. This concentration must maintain leveled to avoid inhibition. This alcohol microorganisms can be determined from the respiration of micro-organisms by measuring oxygen electrode. A sensor that uses immobilized micro-organisms that are either yeast or bacteria that determines de methyl and ethyl alcohol. Return to Exhibit

How it Works Return to Exhibit

Gas Biosensor In order to detect gases like methane or carbon dioxide, microbial biosensors have been developed. These are thiobacillus-based biosensors that can detect the pollutant SO 2 by immobilized Methalomonas. This one is specially used to strain of Pseudomonas and monitor carbon dioxide levels. Return to Exhibit

How it looks Return to Exhibit

Miscellaneous Biosensors A graphite electrode with Cyanobacteria and Seynechococcues is used to measure the degree of electron transport during Photosynthesis due to pollutants or herbicides. They detect phenol, phenol oxidase enzymes, detecting polychlorinated biphenyls and chlorinated hydrocarbons and a certain other organic compounds have also been developed. They can be used for the detection of organophosphorus compound in water. Return to Exhibit

How it works Return to Exhibit

BIOSENSOR A lactate sensor composed of lactate oxidase and a voltammetry divide to determine hydrogen peroxide that will measure the numbers of lactate acid produced in the bacteria. The system consists of a lactate sensor in a membrane filter for trapping lactic acid that produces bacteria. Lactic acid producing bacteria produce mainly lactate as a metabolite from glucose. The rate of lactate production depends on the cell numbers on the membrane. That’s why the lactate sensor is also affected by the cell number. It determines the lactic acid producing more bacterias. Return to Exhibit

How it works Return to Exhibit

My biosensor I decided to develop a biosensor that can detect when someone is starting to develop an anxiety attack. Return to Exhibit

What detects anxiety Some signs and symptoms that can detect anxiety are: • • Tension Agitation Sweatiness Hyperventilation Tiredness Shakes or trembles High heart rates Return to Exhibit

How does it work. My biosensor can detect anxiety by just measuring the carbon dioxide levels. As mentioned before hyperventilation is a symptom of anxiety. Hyperventilation is easily measured by the levels of carbon dioxide exhaled from the body. When hyperventilating, carbon dioxide levels drop so the object is to stop this by raising those carbon dioxide levels. My biosensor will be a little puncher that will measure simultaneously the heart rate and the carbon dioxide levels to detect when an anxiety attack is happening. Return to Exhibit

How it will look like It will look just like a diabetes sugar meter but instead of measuring glucose it will measure the carbon dioxide and the heart rhythm. Return to Exhibit

Bibliography Examples. (n. d. ). Biosensors. Retrieved August 17, 2020, from https: //biosensortechnology. weebly. co m/examples. html#: %7 E: text=A%20 goo d%20 example%20 of%20 a, as%20 low %20 as%200. 15%20 m. M. Trastornos de ansiedad - Síntomas y causas - Mayo Clinic. (2018, November 20). Trastornos de Ansiedad. https: //www. mayoclinic. org/eses/diseasesconditions/anxiety/symptomscauses/syc-20350961 What are Biosensors? (2019, February 26). News-Medical. Net. https: //www. newsmedical. net/health/What-are. Biosensors. aspx Return to Exhibit

Informative Video https: //www. youtube. com/watch? v=W 95 w 3 D 2 Zt. Uk Return to Exhibit