In this study, a novel amperometric glucose biosensor with immobilization of glucose oxidase on electrochemically polymerized polyaniline-polyvinylsulphonate-potassium ferricyanide (Pani-Pvs-Fc) films has been accomplished via the entrapment technique. Potassium ferricyanide was used as the mediator. Determination of glucose was carried out by the oxidation of potassium ferrocyanide at 0.3 V vs. Ag/AgCl. The effects of pH and temperature were investigated, and the optimum pH value was found to be 7.5. The storage stability and the operational stability of the enzyme electrode were also studied.

In line with the developments in the pharmaceutical field, the product range is constantly being renewed and diversified. New analytical techniques need to be developed and validated for new pharmaceutical products. The validation of an improved method is an internationally recognized scientific requirement, as these validation practices are also indicative of the competence of the analytical laboratory. The method development is a process that ensures the applicability and reliability of the data. The result is a more comprehensive understanding of the standard test methods and a further insight into the connection between test methodology and product quality. It is important to validate an advanced method. Because if the method can not be reproduced, the method is meaningless. Validation is  a continuous balance among costs, risks and technical possibilities. Peer Review History: Received 5 February 2020;   Revised 22 February; Accepted 1 March, Available online 15 March 2020 UJPR follows the most transparent and toughest ‘Advanced OPEN peer review’ system. The identity of the authors and, reviewers will be known to each other. This transparent process will help to eradicate any possible malicious/purposeful interference by any person (publishing staff, reviewer, editor, author, etc) during peer review. As a result of this unique system, all reviewers will get their due recognition and respect, once their names are published in the papers. We expect that, by publishing peer review reports with published papers, will be helpful to many authors for drafting their article according to the specifications. Auhors will remove any error of their article and they will improve their article(s) according to the previous reports displayed with published article(s). The main purpose of it is ‘to improve the quality of a candidate manuscript’. Our reviewers check the ‘strength and weakness of a manuscript honestly’. There will increase in the perfection, and transparency. Received file Average Peer review marks at initial stage: 6.0/10 Average Peer review marks at publication stage: 7.5/10 Reviewer(s) detail: Name: Kian Navaee Affiliation: Shahre Daru Pharmaceutical Co., Iran E-mail: kian.navaee@chemist.com   Name: Dr. Mohammad Shaheen Khan Affiliation: University Malaysia Sabah, Malaysia E-mail: shaheenchem@gmail.com Comments of reviewer(s): Similar Articles: ANALYTICAL METHOD DEVELOPMENT AND VALIDATION FOR THE DETERMINATION OF OMEPRAZOLE AND ASPIRIN USING REVERSE PHASE HPLC METHOD IN BULK AND DOSAGE FORM VALIDATION OF HPLC AND UV VISIBLE METHODS FOR FEW SELECTED BLOOD PRESSURE LOWERING DRUGS AND THEIR FORMULATIONS

Ear diseases can significantly affect the life quality of patient, so the need for effective treatment encourages the development of new active substances and new dosage forms. Otic dosage forms may be solutions, suspensions, or emulsions of drops or spray for washing the ear or for administration to the ear canal. They may be ear-wash preparations in the form of solution or emulsion, or medicated semi-solid or solid preparations in the form of gel, cream, ointment, powders, sticks or buffers. These preparations can contain one or much more active ingredients in a suitable vehicle and additionally may contain different excipients for isotonisation, pH adjustment, viscosity or solubility enhancement, buffering, preservation, etc. These excipients should not alter the pharmacological effect of active substances and should not be toxic or irritating. Ear preparations can be packaged in single or multiple doses. It is anticipated that otic dosage forms will be improved and the importance of locally applied, safe and highly controlled drug delivery systems will increase in the future.

Along with the developing technology, 3D printers have found broad applications in medical and pharmaceutical fields. Precise digital control over layer by layerprinting given by 3D printers allows drugs, cosmetics and medical devices like prostheses to be personalized for treatment. Additionaly, the physical structure of 3D printed productsand theirvisualization is effective on surgical planning, educational and research applications alleviating the endeavior of surgeons,students and scientists, respectively. Since FDA’s first 3D printed drug approval in 2015, the research for new approaches has been growing although the manufacturers need regularity certainty. However this technology exists for a long time and  it is of public interest now due to the approval of 3-D printed tablet and other medical devices and also with the advent of USFDA’s guidance on  technical considerations specific to devices using additive manufacturing which encompasses 3-dimensional (3D) printing has triggered many thoughts about this technology which needs to be considered for successful delivery of intended product.  As for 3D organ printing, it remains the great expectation albeit some attempts. This review is aimed at giving brief explanations about 3D printing achievements and applications in medical and pharmaceutical fields.