[1] He has published over thirty peer-reviewed original research articles (Google Scholar) in the specialty of mitochondrial bioenergetics and molecular biology.

[3][4][5] Since then, aerobic glycolysis by malignant tumors is utilized clinically to diagnose and monitor treatment responses of cancers by imaging uptake of 2-18F-2-deoxyglucose (a radioactive modified hexokinase substrate) with positron emission tomography (PET).

Bustamante was founding president and managing director (1978–2001) of AB Chimica Laboratorios SA, the first Peruvian company dedicated to manufacturing diagnostic kits and medical devices for use in clinical laboratories.

Bustamante is scientific director of BioGenomica [3], a company specializing in DNA paternity & parentage testing and cancer molecular genetics, serving the Peruvian and international markets.

He also was technical and commercial representative of U.S. and European companies in the medical and clinical diagnostics fields, such as with the Société Française d’Équipement Hospitalier, managing a French-government funded, six-million dollar project that entailed the partial renovation of Hospital Arzobispo Loayza (Lima, Peru) between 1996 and 2000.

In 2007, Bustamante was elected to serve a two-year term as president (National Dean) of the Colegio de Biólogos del Perú [4], a professional organization -created by law- consisting presently of over 18,000 registered biologists.

In 2009, Bustamante was re-elected to the National Board of the Colegio de Biólogos del Perú, this time to serve as vice-president during a two-year term (2009–2011).

In 2008, Bustamante was elected member of the board of directors of the Consejo Nacional del Ambiente, CONAM -the top national environmental authority that also ruled on biodiversity and biosafety issues, now replaced by the Ministry of the Environment.

He served until November 2011, when the first Humala Cabinet -headed by Prime Minister Salomon Lerner- fell due to the political consequences of social and environmental conflicts between mining companies and the neighboring populations that took place in the provinces of Tacna and Cajamarca.

In July 2023, Bustamante was elected to serve as Chairman of the Congressional Special Committee to Oversee the Process of Incorporation of Peru to the Organisation for Economic Co-operation and Development, OECD [20].