Polymer latex gloves primarily refer to nitrile and vinyl gloves, often used as an alternative to natural rubber latex (NRL) gloves due to the increasing prevalence of NRL allergies. Nitrile gloves, made from synthetic nitrile polymer, offer superior puncture resistance and chemical protection, making them ideal for medical, dental, and industrial applications. They are available in powder-free and powdered varieties, with the former being more hypoallergenic. Vinyl gloves, composed of polyvinyl chloride (PVC), are less expensive but provide less barrier protection than nitrile. They are commonly used in non-medical settings like food service and general cleaning tasks. Both types of gloves have their specific advantages and disadvantages based on the intended use, cost considerations, and user sensitivity to materials.

To see infrared (IR) ink, you need a device sensitive to IR light since IR ink is invisible to the naked eye. Devices like IR cameras or modified digital cameras with the IR filter removed can detect IR light. When IR light shines on the ink, the camera captures it, making the ink visible in the camera's display. Some smartphones with certain camera sensors may also pick up IR light to a degree. Another way is using IR goggles, which are designed to enhance the visibility of IR light for the wearer. It’s important to note that the effectiveness of these methods can vary based on the wavelength of the IR ink and the sensitivity of the IR detection device.

The question seems to be inquiring about the directionality of polymer formation during the process of translation in biology. Translation is the process through which cellular ribosomes synthesize proteins by decoding messenger RNA (mRNA). This process involves reading the mRNA template in the 5' to 3' direction. However, the polymer referred to, which in the context of translation is a polypeptide or protein, does not have a 3' to 5' or 5' to 3' directionality like nucleic acids (DNA or RNA). Instead, proteins are formed from amino acids linked by peptide bonds, and the sequence is determined by the mRNA template order, where the amino terminal (N-terminus) corresponds to the 5' end of the mRNA and the carboxyl-terminal (C-terminus) corresponds to the 3' end of the mRNA. So, the synthesis directionality concept applies to the mRNA being read, not to the polymer (protein) being formed, which grows from its N-terminus to C-terminus.